Johnson Controls Heat Pump BQ 036 User Manual

INSTALLATION  
MANUAL  
SUNLINE 2000™  
SINGLE PACKAGE HEAT PUMP  
BQ 036, 048 & 060  
EXPORT ONLY  
CONTENTS  
See the following page for a complete Table of Contents.  
NOTES, CAUTIONS AND WARNINGS  
The installer should pay particular attention to the words:  
NOTE, CAUTION, and WARNING. Notes are intended to  
clarify or make the installation easier. Cautions are given  
to prevent equipment damage. Warnings are given to  
alert installer that personal injury and/or equipment dam-  
age may result if installation procedure is not handled  
properly.  
ISO 9001  
Certified Quality  
Management System  
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU  
BEGIN TO INSTALL YOUR UNIT.  
SAVE THIS MANUAL  
364985-XIM-B-0508  
 
364985-XIM-B-0508  
Fig. #  
Tbl. #  
Pg. #  
LIST OF FIGURES  
12 ELECTRICAL DATA - BQ036-060 DIRECT DRIVE  
Pg. #  
W/POWERED CONVENIENCE OUTLET . . . . . . . . . 19  
7
13 ELECTRICAL DATA - BQ036-060 BELT DRIVE  
14 ELECTRICAL DATA - BQ036-060 BELT DRIVE  
OUTLET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
UNIT DIMENSIONS (3 - 5 TON HEAT PUMP)  
9
UNIT WITH FIXED OUTDOOR AIR/MOTORIZED  
19 SUPPLY AIR BLOWER PERFORMANCE (BQ036  
20 SUPPLY AIR BLOWER PERFORMANCE (BQ036  
21 SUPPLY AIR BLOWER PERFORMANCE (BQ048  
22 SUPPLY AIR BLOWER PERFORMANCE (BQ048  
LIST OF TABLES  
Tbl. #  
Pg. #  
23 SUPPLY AIR BLOWER PERFORMANCE (BQ060  
9
24 SUPPLY AIR BLOWER PERFORMANCE (BQ060  
25 SUPPLY AIR BLOWER PERFORMANCE (BQ036,  
APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
26 SUPPLY AIR BLOWER PERFORMANCE (BQ036,  
APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
ELECTRICAL DATA - BQ036-060 DIRECT DRIVE  
28 BELT DRIVE BLOWER MOTOR AND DRIVE  
10 ELECTRICAL DATA - BQ036-060 BELT DRIVE  
11 ELECTRICAL DATA - BQ036-060 BELT DRIVE  
OUTLET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
Johnson Controls Unitary Products  
3
 
364985-XIM-B-0508  
530.18-N1.14V -Man. Outdoor Air Damper Accy  
0 - 100%  
GENERAL  
YORK Model BQ units are single package heat pumps  
equipped with optional factory installed electric heat-  
ers. These are designed for outdoor installation on a  
rooftop or slab.  
035-07364-000 -Motorized Outdoor Air Damper  
Accy.  
035-19422-000 –Electric Heat Accessory  
035-19405-000 -Barometric Relief Damper  
530.46-N1.1V -Dual Enthalpy Accessory  
530.18-N1.10V -Power Exhaust Accessory  
The units are completely assembled on rigid, perma-  
nently attached base rails. All piping, refrigerant  
charge, and electrical wiring is factory installed and  
tested. The units require electric power, gas connec-  
tion, duct connections, installation of combustion air  
inlet hood, flue gas outlet hoods and fixed outdoor air  
intake damper (units without economizer or motorized  
damper option only) at the point of installation.  
RENEWAL PARTS  
The supplemental electric heaters have nickel-chrome  
elements and utilize single point power connection.  
®
Contact your local York parts distribution center for  
authorized replacement parts.  
SAFETY CONSIDERATIONS  
APPROVALS  
Due to system pressure, moving parts and electrical  
components, installation and servicing of air condition-  
ing equipment can be hazardous. Only qualified,  
trained, service personnel should install, repair, main-  
tain or service this equipment.  
Design listed by CSA as follows:  
For use as a heat pump only with or without  
optional electric heat.  
Observe all precautions in the literature, on labels and  
tags accompanying the equipment whenever working  
on air conditioning equipment. Be sure to follow all  
other safety precautions that apply.  
For outdoor installation only.  
For installation on combustible material.  
Wear safety glasses and work gloves, and follow all  
safety codes. Use a quenching cloth and have a fire  
extinguisher available for all brazing operations.  
This product must be installed in strict compli-  
ance with the enclosed installation instructions  
and any applicable local, state, and national  
codes including, but not limited to, building,  
electrical, and mechanical codes.  
INSPECTION  
As soon as a unit is received, it should be inspected for  
possible damage during transit. If damage is evident,  
the extent of the damage should be noted on the car-  
rier's freight bill. A separate request for inspection by  
the carrier's agent should be made in writing. Refer to  
Form 50.15-NM for additional information.  
Improper installation may create a condition  
where the operation of the product could cause  
personal injury or property damage.  
REFERENCE  
Additional information on the design, installation, oper-  
ation and service of this equipment is available in the  
following reference forms:  
The installer should pay particular attention to the  
words: NOTE, CAUTION and WARNING. Notes are  
intended to clarify or make the installation easier. Cau-  
tions are given to prevent equipment damage. Warn-  
ings are given to alert installer that personal injury and/  
or equipment damage may result if installation proce-  
dure is not handled properly.  
364985 -General Installation  
035-19404-000 -Economizer Accessory  
530.18-N1.13V -Man. Outdoor Air Damper  
Accessory 0 - 35%  
4
Johnson Controls Unitary Products  
 
           
364985-XIM-B-0508  
PRODUCT NOMENCLATURE  
3-5 Ton Sunline Simplicity Model Number Nomenclature  
B Q 048 N04 A 2 A AA 1 0 1 2 4 A  
Product Category  
Product Style  
B = HP, Single Pkg., R-22  
A = Style A  
Product Identifier  
Configuration Options (not required for all units)  
These four digits will not be assigned until a quote is requested, or an order placed.  
Q = 10.0 SEER HP  
SS Drain Pan  
CPC Controller, DFS, APS  
Johnson Controller, DFS, APS  
Nominal Cooling Capacity  
Honeywell Controller, DFS, APS  
036 = 3.0 Ton  
048 = 4.0 Ton  
060 = 5.0 Ton  
Novar Controller, DFS, APS  
Simplicity IntelliComfort Controller  
Simplicity IntelliComfort Controller w/ModLinc  
2" Pleated Filters  
Heat Type and Nominal Heat Capacity  
BAS Ready Economizer (2-10 V. D. C. Actuator without a Controller)  
Any Combination of Additional Options that Don’t Have an Option Code Pre-assigned  
C00 = Cooling Only. Suitable for Field  
Installed Electric Heat  
Product Generation  
Electric Heat Options  
1 = First Generation  
2 = Second Generation  
E05 = 5 KW  
E07 = 7 KW  
E10 = 10 KW  
E15 = 15 KW  
E20 = 20 KW  
E30 = 30 KW  
Additional Options  
Hinged Filter Door & Toolless Access Cabinet  
Standard Cabinet  
AA = None  
BA = Hinged Filter Door & Toolless Access Panels  
BA = Hinged Filter Door & Toolless Access Panels  
BB = Phase Monitor, Hinged Filter Door & Toolless  
Access Panels  
Airflow  
AB = Phase Monitor  
AC = Coil Guard  
AD = Dirty Filter Switch  
A = Direct Drive  
B = Direct Drive/Single Input Economizer  
D = Direct Drive/Motorized Damper  
N = Belt Drive  
P = Belt Drive/Single Input Economizer  
R = Belt Drive/Motorized Damper  
T = Belt Drive High Static  
AE = Phase Monitor & Coil Guard  
AF = Phase Monitor & Dirty Filter Switch  
AG = Coil Guard & Dirty Filter Switch  
AH = Phase Monitor, Coil Guard & Dirty Filter Switch  
AS = Bottom Drain Connection  
RC = Coil Guard & American Flag  
TA = Technicoat Condenser Coil  
TJ = Technicoat Evaporator Coil  
TS = Technicoat Evaporator and Condenser Coil  
BC = Coil Guard, Hinged Filter Door & Toolless  
Access Panels  
BD = Dirty Filter Switch, Hinged Filter Door &  
Toolless Access Panels  
BE = Phase Monitor & Coil Guard, Hinged Filter  
Door & Toolless Access Panels  
BF = Phase Monitor & Dirty Filter Switch, Hinged  
Filter Door & Toolless Access Panels  
BG = Coil Guard & Dirty Filter Switch, Hinged Filter  
Door & Toolless Access Panels  
U = Belt Drive High Static/Single Input Economizer  
V = Belt Drive High Static/Motorized Damper  
BH = Phase Monitor, Coil Guard & Dirty Filter Switch,  
Hinged Filter Door & Toolless Access Panels  
Voltage  
2 = 208/230-3-60  
4 = 460-3-60  
5 = 575-3-60  
ZZ = If desired option combination is not listed above, ZZ will be assigned and configuration options will be  
located in digits 15-18.  
Installation Options  
A = No Options Installed  
B = Option 1  
C = Option 2  
D = Options 1 & 2  
E = Option 3  
F = Option 4  
G = Options 1 & 3  
H = Options 1 & 4  
J = Options 1, 2 & 3  
K = Options 1, 2, & 4  
L = Options 1,3 & 4  
M = Options 1, 2, 3, & 4  
N = Options 2 & 3  
P = Options 2 & 4  
Q = Options 2, 3, & 4  
R = Options 3 & 4  
S = Option 5  
T = Options 1 & 5  
U = Options 1, 3, & 5  
V = Options 1, 4, & 5  
W = Options 1, 3, 4, & 5  
X = Options 3 & 5  
Y = Options 4 & 5  
Z = Options 3, 4 & 5  
Options  
1 = Disconnect  
2 = Non-Pwr'd Conv. Outlet  
3 = Smoke Detector S.A.  
4 = Smoke Detector R.A.  
5 = Pwr'd Conv. Outlet  
Johnson Controls Unitary Products  
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364985-XIM-B-0508  
In Canada:  
INSTALLATION  
Current Canadian Electrical Code C22.1.  
Local plumbing and waste water codes.  
Other applicable local codes.  
INSTALLATION SAFETY INFORMATION:  
Read these instructions before continuing this appli-  
ance installation. This is an outdoor combination heat-  
ing and cooling unit. The installer must assure that  
these instructions are made available to the consumer  
and with instructions to retain them for future reference.  
Refer to the Unit Application Data Table 1 and the  
Electrical Data table for the unit.  
1. Install this unit only in a location and position as  
specified on page 6 of these instructions.  
If components are to be added to a unit to meet local  
codes, they are to be installed at the dealer's and/or  
the customer's expense.  
2. This equipment is not to be used for temporary  
heating of buildings or structures under construc-  
tion.  
Size of unit for proposed installation should be based  
on heat loss/heat gain calculation made according to  
the methods of the Air Conditioning Contractors of  
America (ACCA).  
LIMITATIONS  
These units must be installed in accordance with the  
following national and local safety codes:  
This unit is not to be used for temporary heating of  
buildings or structures under construction.  
In U.S.A.:  
National Electrical Code ANSI/NFPA No. 70.  
TABLE 1: UNIT APPLICATION DATA (BQ)  
UNIT MODEL NUMBER  
036  
048  
060  
208/230  
187 / 253  
414 / 506  
518 / 630  
Voltage Variation,  
460  
1
Min. / Max.  
575  
Supply Air CFM, Nom.  
1200  
1600  
2000  
Wet Bulb Temperature (ºF) of Air on  
Evaporator Coil, Min. / Max  
57 / 72  
0 / 120  
Dry Bulb Temperature (ºF) of Air on  
Condenser Coil, Min. / Max.  
1. Utilization range “A” in accordance with ARI Standard 110.  
LOCATION  
greater than the unit base rails. Do not tie slab to  
the building foundation.  
Use the following guidelines to select a suitable loca-  
tion for these units.  
5. Roof structures must be able to support the weight  
of the unit and its options and/or accessories. Unit  
must be installed on a solid level roof curb or  
appropriate angle iron frame.  
1. Unit is designed for outdoor installation only.  
2. Condenser coils must have an unlimited supply of  
air.  
6. Maintain level tolerance to 1/2 inch maximum  
across the entire length or width of the unit.  
3. Where a choice of location is possible, position the  
unit on either north or east side of building.  
If a unit is to be installed on a roof curb or special frame  
other than a YORK roof curb, gasketing must be  
applied to all surfaces that come in contact with the unit  
underside.  
4. For ground level installation, use a level concrete  
slab with a minimum thickness of 4 inches. The  
length and width should be at least 6 inches  
6
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364985-XIM-B-0508  
RIGGING AND HANDLING  
A closed return duct system shall be used. This shall  
not preclude use of economizers or outdoor fresh air  
intake. The supply and return air duct connections at  
the unit should be made with flexible joints to minimize  
noise.  
Exercise care when moving the unit. Do not remove  
any packaging until the unit is near the place of installa-  
tion. Rig the unit by attaching chain or cable slings to  
the lifting holes provided in the base rails. Spreader  
bars, whose length exceeds the largest dimension  
across the unit, MUST BE USED.  
The supply and return air duct systems should be  
designed for the CFM and static requirements of the  
job. They should NOT be sized to match the dimen-  
sions of the duct connections on the unit.  
Units may also be moved or lifted with a forklift. Slotted  
openings in the base rails are provided for this pur-  
pose. Fork lengths must be a minimum of 42 inches.  
Remove the nesting brackets from the four corners on  
the top of the unit. All screws that are removed when  
removing the brackets must be replaced on the unit.  
When fastening ductwork to side duct flanges  
on unit, insert screws through duct flanges  
only. DO NOT insert screws through casing.  
Outdoor ductwork must be insulated and  
waterproofed.  
Refer to Table 8 for unit weights and to the Figure 6 for  
approximate center of gravity.  
Refer to Figures 7 and 10 for information concerning  
side and bottom supply and return air duct openings.  
Before lifting a unit, make sure that all panels  
are in place and that its weight is distributed  
equally on all cables so it will lift evenly.  
CONDENSATE DRAIN  
Plumbing must conform to local codes. Use a sealing  
compound on male pipe threads. Install a condensate  
drain line from the 3/4" NPT female connection on the  
unit to an open drain.  
CLEARANCES  
NOTE: The condensate drain operates in a negative  
pressure in the cabinet. The condensate drain  
line MUST be trapped to provide proper drain-  
age. See Figure 1.  
All units require certain clearances for proper operation  
and service. Installer must make provisions for ade-  
quate ventilation air. Refer to Dimensions and Clear-  
ances shown in Figures 7 through 10 and Table 18 for  
the clearances required for combustible construction,  
servicing, and proper unit operation.  
Do not permit overhanging structures or shrubs  
to obstruct outdoor air discharge outlet, com-  
bustion air inlet or vent outlets.  
DUCTWORK  
Ductwork should be designed and sized according to  
the methods in Manual Q of the Air Conditioning Con-  
tractors of America (ACCA).  
FIGURE 1 - RECOMMENDED DRAIN PIPING  
Johnson Controls Unitary Products  
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364985-XIM-B-0508  
COMPRESSORS  
FILTERS  
Units are shipped with compressor mountings factory-  
adjusted and ready for operation.  
One-inch or two-inch filters can be supplied with each  
unit. Filters must always be installed ahead of the  
evaporator coil and must be kept clean or replaced with  
same size and type. Dirty filters will reduce the capacity  
of the unit and will result in frosted coils or safety shut-  
down. Minimum filter area and required sizes are  
Units with scroll compressors have a shipping bracket  
which must be removed after the unit is set in place.  
See Figure 2.  
SERVICE ACCESS  
COMPRESSOR  
The following removable panels provide access to all  
serviceable components:  
MOUNTING  
BRACKET BASE  
Compressor compartment  
Electric Heat compartment  
Blower compartment  
Main control box  
REMOVE THESE  
SCREWS (2)  
Filter compartment  
MOUNTING  
BRACKET TOP  
(REMOVE)  
Refer to the Dimensions and Clearances shown in Fig-  
ures 7 and 11 for location of these access panels.  
WIRE TIE (CUT AND REMOVE)  
FIGURE 2 - COMPRESSOR RESTRAINING  
BRACKET  
Make sure that all screws and panel latches  
are replaced and properly positioned on the  
unit to maintain an airtight seal.  
Do not loosen compressor mounting bolts.  
8
Johnson Controls Unitary Products  
 
       
364985-XIM-B-0508  
TYPICAL POWER WIRING  
REFER TO THE ELECTRICAL DATA  
TABLES TO SIZE THE DISCONNECT  
SWITCH, OVERCURRENT PROTEC-  
TION AND WIRING.  
TYPICAL CONTROL WIRING  
COOLING / HEATING (24 VOLT THERMOSTAT)  
THERMOSTAT1  
TERMINALS  
UNIT TERMINAL  
STRIP TB1  
RH  
ADD  
JUMPER  
RC  
Y
R
Y1  
Y2  
W1  
W2  
G
24 VOLT  
TRANSFORMER  
W
G
C
1
24 VOLT THERMOSTAT 2ET07701024. TO CONTROL THE ECONOMIZER ON THE SECOND  
STAGE COOLING OR TO HAVE AN ELECTRIC HEAT ACCESSORY WITH TWO STAGES OF  
HEAT, USE THERMOSTAT 2TH0471024.  
COOLING / HEATING (ELECTRONIC THERMOSTAT)  
MULTI STAGE  
COOLING / HEATING (ELECTRONIC THERMOSTAT)  
SINGLE STAGE  
1
THERMOSTAT  
THERMOSTAT1  
TERMINALS  
UNIT TERMINAL  
STRIP TB1  
UNIT TERMINAL  
STRIP TB1  
TERMINALS  
RC  
RH  
Y1  
24 VOLT  
TRANSFORMER  
RH  
RC  
Y
ADD  
JUMPER  
R
Y1  
Y2  
W1  
W2  
G
R
Y1  
W1  
G
ADD  
JUMPER  
2
3
Y2  
W
W1  
G
4
W2  
C
G
B
24 VOLT  
TRANSFORMER  
C
LED 1  
X
NOT  
USED  
LED 2  
COM  
A1  
OCC  
1ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET07701024 (INCLUDES SUBBASE).  
TO CONTROL THE ECONOMIZER ON SECOND STAGE COOLING, USE THERMOSTAT  
2TH04700224.  
4
ADD  
JUMPER  
A2  
T
TO REMOTE SENSOR  
2TH040702224 IF USED  
T
1 ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET04700224 (INCLUDES SUBBASE).  
2 SECOND STAGE COOLING IS NOT REQUIRED ON UNITS LESS ECONOMIZER.  
3 SECOND STAGE HEATING IS ONLY REQUIRED ON UNITS WITH A TWO STAGE  
ELECTRIC HEATER OR 2 STAGE GAS HEAT.  
4
REMOVE JUMPER J2 FROM TERMINALS 4 AND 9 ON JUMPER PLUG CONNECTOR  
P6 ON UNITS WITH ECONOMIZER. TERMINALS A1 AND A2 PROVIDE A RELAY  
OUT-PUT TO CLOSE THE OUTDOOR ECONOMIZER DAMPERS WHEN THE  
THERMOSTAT SWITCHES TO THE SET-BACK POSITION.  
FIGURE 3 - TYPICAL FIELD POWER & CONTROL WIRING  
Johnson Controls Unitary Products  
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364985-XIM-B-0508  
THERMOSTAT  
The room thermostat should be located on an inside  
wall approximately 56 inches above the floor where it  
will not be subject to drafts, sun exposure or heat from  
electrical fixtures or appliances. Follow the manufac-  
turer's instructions enclosed with the thermostat for  
general installation procedure. A minimum of seven  
color-coded insulated wires (#18 AWG) should be used  
to connect the thermostat to the unit.  
When connecting electrical power and control  
wiring to the unit, waterproof type connectors  
MUST BE USED so that water or moisture  
cannot be drawn into the unit during normal  
operation. The above waterproofing conditions  
will also apply when installing a field-supplied  
disconnect switch.  
POWER AND CONTROL WIRING  
Refer to the Typical Field Wiring Figure 3 and to the  
appropriate unit wiring diagram for control circuit and  
power wiring information.  
Field wiring to the unit must conform to provisions of  
the National Electrical Code, ANSI / NFPA No. 70 (in  
U.S.A.), current Canadian Electrical Code C22.1 (in  
Canada) and/or local ordinances. The unit must be  
electrically grounded in accordance with NEC and CEC  
(as specified above) and/or local codes. Voltage toler-  
ances, which must be maintained at the compressor  
terminals, during starting and running conditions, are  
indicated on the unit Rating Plate and the Unit Applica-  
tion Data table.  
TABLE 2: CONTROL WIRE SIZES  
1
Wire Size  
18 AWG  
Maximum Length  
150 Feet  
1. From the unit to the thermostat and back to the unit.  
OPTIONS/ACCESSORIES  
ELECTRIC HEAT  
The internal wiring harness furnished with this unit is  
an integral part of a CSA design certified unit. Field  
alteration to comply with electrical codes should not be  
required.  
The factory- or field-installed heaters are wired for sin-  
gle point power supply. Power supply need only be  
brought into the single point terminal block and thermo-  
stat wiring to the low voltage terminal strip located in  
the upper portion of the unit control box.  
A fused disconnect switch should be field provided for  
the unit. The switch must be separate from all other cir-  
cuits. Wire entry at knockout openings require conduit  
fittings to comply with NEC (in U.S.A.), CEC (in Can-  
ada) and/or local codes. If any of the wire supplied with  
the unit must be replaced, replacement wire must be of  
the type shown on the wiring diagram and the same  
minimum gauge as the replaced wire.  
These CSA approved heaters are located within the  
central compartment of the unit with the heater ele-  
ments extending into the supply air chamber. Refer to  
Figure 7 for access panel location.  
Fuses are supplied, where required, by the factory.  
Some KW sizes require fuses and others do not. Refer  
to Table 3 for minimum CFM limitations and to Tables  
9 through 14 for electrical data.  
Use copper conductors properly sized to carry the load.  
Each unit must be wired with a separate branch circuit  
fed directly from the meter panel and properly fused.  
10  
Johnson Controls Unitary Products  
 
         
364985-XIM-B-0508  
TABLE 3: ELECTRIC HEATER CFM LIMITATIONS  
MINIMUM SUPPLY AIR CFM  
HEATER SIZE NOMINAL KW  
UNIT MODEL SIZE  
VOLTAGE  
NOMINAL TONS  
5
7
10  
15  
20  
30  
208/230-1-60  
900  
900  
900  
900  
-
900  
900  
900  
-
208/230-3-60  
460-3-60  
900  
900  
900  
900  
-
036  
(3)  
-
900  
900  
900  
-
600-3-60  
-
900  
900  
900  
-
208/230-1-60  
208/230-3-60  
460-3-60  
1200  
1200  
1200  
1200  
-
1200  
1200  
1200  
1200  
1500  
1500  
1500  
1500  
1200  
1200  
1200  
1200  
1500  
1500  
1500  
1500  
1200  
1200  
1200  
1200  
1500  
1500  
1500  
1500  
-
-
1200  
048  
(4)  
-
-
600-3-60  
-
-
208/230-1-60  
208/230-3-60  
460-3-60  
1500  
1500  
1500  
1500  
-
1500  
1500  
1500  
1500  
1500  
060  
(5)  
-
-
600-3-60  
ECONOMIZER/MOTORIZED DAMPER AND RAIN HOOD  
ECONOMIZER AND POWER EXHAUST DAMPER  
SET POINT ADJUSTMENTS AND INFORMATION  
The instruction for the optional economizer/motorized  
damper and rain hood can be found in form 035-  
07364-000. Use these instructions when field assem-  
bling an economizer rain hood onto a unit. The outdoor  
and return air dampers, the damper actuator, the  
damper linkage, the outdoor and return air divider baf-  
fles, and all the control sensors are factory mounted as  
part of the “Factory installed” economizer/motorized  
damper options.  
Remove the economizer access panel from the unit.  
Loosen but do not remove the two panel latches.  
Locate the economizer control module, where the fol-  
lowing adjustments will be made.  
POWER EXHAUST/BAROMETRIC RELIEF DAMPER AND  
RAIN HOOD  
Extreme care must be exercised in turning all  
setpoint, maximum, and minimum damper  
positioning adjustment screws to prevent twist-  
ing them off.  
The instructions for the power exhaust/barometric relief  
damper and rain hood can be found in form 530.18-  
N1.10V.  
All of the components, including the dampers, hard-  
ware, and mounting instructions are shipped in a single  
package external from the unit and must be field  
assembled and installed.  
Check that the damper blades move smoothly without  
binding; carefully turn the Minimum Position Adjusting  
screw (found on the damper control module) fully  
clockwise and then set the thermostat indoor fan switch  
to the on position and then off, or energize and de-  
energize terminals “R” to “G”.  
Power exhaust is only available as a field installed  
accessory.  
Johnson Controls Unitary Products  
11  
 
       
364985-XIM-B-0508  
MINIMUM POSITION ADJUSTMENT  
With power exhaust option, each building pressur-  
ization requirement will be different. The point at  
which the power exhaust comes on is determined  
by the economizer damper position (Percent  
Open). The Exhaust Air Adjustment Screw should  
be set at the Percent Open of the economizer  
damper at which the power exhaust is needed. It  
can be set from 0 to 100% damper open.  
With thermostat set to indoor fan on position, or termi-  
nals “R” to “G” energized, turn the Minimum Position  
Adjusting screw (located on the damper control mod-  
ule) counterclockwise until the desired minimum  
damper position has been attained.  
ENTHALPY SET POINT ADJUSTMENT  
INDOOR AIR QUALITY  
The enthalpy setpoint may now be set by selecting the  
desired setpoint shown in the Enthalpy Setpoint Adjust-  
ment Figure 4. Adjust as follows:  
Indoor air quality (indoor sensor input): Terminal AQ  
accepts a +2 to +10 Vdc signal with respect to the  
(AQ1) terminal. When the signal is below it's setpoint,  
the actuator is allowed to modulate normally in accor-  
dance with the enthalpy and mixed air sensor inputs.  
When the AQ signal exceeds it's setpoint setting and  
there is no call for free cooling, the actuator is propor-  
tionately modulated from the 2 to 10 Vdc signal, with 2  
Vdc corresponding to full closed and 10 Vdc corre-  
sponding to full open. When there is no call for free  
cooling, the damper position is limited by the IAQ Max  
damper position setting. When the signal exceeds it's  
setpoint (Demand Control Ventilation Setpoint) setting  
and there is a call for free cooling, the actuator modu-  
lates from the minimum position to the full open posi-  
tion based on the highest call from either the mixed air  
sensor input or the AQ voltage input.  
For a single enthalpy operation carefully turn the  
setpoint adjusting screw (found on the damper  
control module) to the “A”, “B”, “C” or “D” setting  
corresponding to the lettered curve of the Enthalpy  
Setpoint Adjustment Figure 4.  
For a dual enthalpy operation, carefully turn the  
setpoint adjusting screw fully clockwise past the  
“D” setting.  
POWER EXHAUST DAMPER SETPOINT (WITH OR WITH-  
OUT POWER EXHAUST)  
With no power exhaust option, adjust the Exhaust  
Air Adjustment Screw fully clockwise.  
Optional CO Space Sensor Kit Part #  
2
2AQ04700324  
Optional CO Unit Sensor Kit Part # 2AQ04700424  
2
Replace the economizer access panel.  
12  
Johnson Controls Unitary Products  
 
       
364985-XIM-B-0508  
CONTROL POINT  
APPROX. 0F (0C)  
AT 50% RH  
CONTROL  
CURVE  
85 90 95 100 105 110  
(29) (32) (35) (38) (41) (43)  
A
B
C
D
73 (23)  
70 (21)  
67 (19)  
63 (17)  
80  
(27)  
75  
(24)  
70  
(21)  
65  
(18)  
0  
(16)  
55  
(13)  
A
B
50  
(10)  
C
45  
(7)  
D
40  
(4)  
35  
(2)  
A
B
C
D
40 45  
(4) (7)  
65 70 75 80  
(24) (27)  
95  
(35)  
105 110  
(41) (43)  
35  
(2)  
50 55 60  
(10) (13) (16)  
85 90  
(29) (32)  
100  
(38)  
(21)  
(18)  
APPROXIMATE DRY BULB TEMPERATURE - 0F (0C)  
FIGURE 4 - ENTHALPY SETPOINT ADJUSTMENT  
Exhaust Air  
Adjustment  
Screw  
EXH  
Set  
N
P
T
N1  
P1  
T1  
TR  
TR1  
Exhaust Air LED  
Damper Min.  
Position  
Screw  
24  
Vac  
HOT  
24  
Vac  
COM  
EXH  
Min  
Pos  
Indoor Air Quality  
Max. Adjustment  
Screw  
+
IAQ  
Max  
1
2
Indoor Air Quality  
LED  
IAQ  
AQ1  
SO+  
AQ  
SO  
5
4
Indoor Air Quality  
Min. Adjustment  
Screw  
IAQ  
Min  
3
Free  
Cool  
Free Cooling LED  
SR  
B
A
SR+  
EF  
EF1  
C
D
Economizer Enthalpy  
Set Point Adjustment  
Screw  
FIGURE 5 - HONEYWELL ECONOMIZER CONTROL W7212  
Johnson Controls Unitary Products  
13  
 
   
364985-XIM-B-0508  
BACK OF UNIT  
BACK OF UNIT  
A
A
7
7
44 /8  
44 /8  
1
1
82 /4  
82 /4  
B
F
D
X
X
C
B
E
APPROXIMATE  
APPROXIMATE  
CENTER OF GRAVITY  
CENTER OF GRAVITY  
CONDENSER COIL  
END OF UNIT  
CONDENSER COIL  
END OF UNIT  
C
D
FRONT OF UNIT  
FRONT OF UNIT  
Y
Y
FIGURE 6 - FOUR AND SIX POINT LOADING  
TABLE 4: CENTER OF GRAVITY (ALL MODELS)  
DIMENSION  
3 - 5 TON  
X
Y
40-¾”  
19-¾”  
TABLE 5: BQ 4 POINT LOADS WEIGHT DISTRIBUTION  
UNIT  
TOTAL  
A
B
C
D
BQ036  
628  
139  
137  
174  
177  
BQ048  
BQ060  
668  
693  
148  
154  
146  
151  
185  
192  
189  
196  
TABLE 6: BQ 6 POINT LOADS WEIGHT DISTRIBUTION  
UNIT  
TOTAL  
A
B
C
D
E
F
BQ036  
628  
93  
92  
91  
116  
117  
119  
BQ048  
BQ060  
668  
693  
99  
98  
97  
123  
128  
125  
129  
126  
131  
103  
102  
100  
14  
Johnson Controls Unitary Products  
 
       
364985-XIM-B-0508  
TABLE 7: PHYSICAL DATA  
BQ  
048  
12 X 10  
3/4  
MODELS  
Centrifugal Blower (Dia. x Wd. in.)  
036  
12 X 10  
1/2  
060  
12 X 10  
1
Fan Motor HP (Direct Drive)  
Fan Motor HP (Belt Drive)  
Fan Motor HP (Belt Drive High Static)  
Rows Deep  
EVAPORATOR  
BLOWER  
1 1/2  
1 1/2  
4
1 1/2  
1 1/2  
3
1 1/2  
2
3
EVAPORATOR  
COIL  
Fins Per Inch  
16  
15  
15  
Face Area (Sq. Ft.)  
Propeller Dia. (in.)  
Fan Motor Hp  
4.3  
5.1  
5.1  
24  
22  
22  
CONDENSER  
FANS  
1/3  
1/2  
1/2  
4500  
1
Nom. CFM  
4300  
1
4200  
1
Rows Deep  
CONDENSER  
COILS  
Fins Per Inch  
20  
20  
20  
Face Area (Sq. Ft.)  
17.1  
17.1  
17.1  
COMPRESSOR  
(Qty. Per Unit)  
Reciprocating Type  
1
1
1
Quantity Per Unit (15” X 20” X 1” or 2“)  
Quantity Per Unit (14” X 25” X 1” or 2“)  
Total Face Area (sq. ft.)  
2
1
2
1
2
1
AIR  
FILTERS  
6.6  
6.6  
6.6  
Refrigerant 22  
(lbs./oz.)  
CHARGE  
7/12  
9/2  
8/4  
TABLE 8: OPERATING WEIGHTS (LBS.)  
MODEL SIZE  
3 TON  
4 TON  
668  
50  
5 TON  
BASIC UNIT  
BQ  
628  
693  
Economizer  
Motorized Damper  
26  
OPTIONS  
5 - 7 kW  
10 - 15 kW  
20 - 30 kW  
18  
Electric Heater  
23  
28  
Roof Curb  
92  
ACCY.  
Barometric Relief / Fixed Air Damper  
Belt-Drive Blower  
10  
5
Johnson Controls Unitary Products  
15  
 
   
364985-XIM-B-0508  
TABLE 9: ELECTRICAL DATA - BQ036-060 DIRECT DRIVE W/O POWERED CONVENIENCE OUTLET  
OD Fan Supply  
Pwr  
Conv  
Outlet  
Max  
Compressors  
(each)  
2
Motors  
(each)  
Blower  
Motor  
Electric Heat Option  
Fuse /  
Breaker  
Size  
(Amps)  
30  
1
Size  
(Tons)  
MCA  
3
Volt  
(Amps)  
RLA LRA MCC  
FLA  
FLA  
FLA  
Model  
kW  
Stages  
Amps  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E07  
E10  
E15  
E20  
E30  
None  
E10  
E15  
E20  
E30  
-
-
-
21.0  
34.9  
40.4  
48.7  
62.3  
76.1  
21.0  
36.9  
43.5  
52.8  
68.8  
84.7  
10.6  
20.8  
25.8  
31.0  
39.9  
8.6  
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
22.2  
-
5.3  
7.5  
10.6  
15.9  
21.2  
29.6  
-
6.8  
10.1  
13.6  
19.5  
28.8  
-
10.6  
15.9  
21.2  
30.4  
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
2
-
1
1
1
2
2
2
-
1
1
2
2
2
-
1
1
2
2
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
40  
45  
50  
70  
80  
30  
45  
50  
60  
70  
90  
15  
25  
30  
35  
40  
15  
25  
30  
35  
35  
50  
50  
60  
70  
90  
35  
50  
50  
60  
80  
90  
20  
25  
30  
35  
45  
15  
25  
30  
40  
45  
60  
60  
70  
80  
90  
125  
45  
60  
70  
70  
90  
100  
125  
25  
35  
35  
40  
50  
70  
20  
30  
35  
40  
60  
208-3-60 11.9 85.0 16.7  
1.7  
4.4  
0.0  
230-3-60 11.9 85.0 16.7  
1.7  
4.4  
0.0  
036  
(3.0)  
8.5  
460-3-60 5.9 42.0  
575-3-60 4.8 34.0  
8.2  
6.7  
1.0  
1.0  
2.2  
2.2  
0.0  
0.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
21.3  
27.7  
34.1  
25.7  
39.6  
45.1  
53.4  
67.0  
80.8  
25.7  
41.6  
48.2  
57.5  
73.5  
89.4  
13.1  
23.3  
28.3  
33.6  
42.4  
10.8  
23.5  
29.9  
36.3  
33.0  
46.9  
52.5  
60.8  
74.3  
88.2  
110.1  
33.0  
49.0  
55.6  
64.9  
80.8  
96.8  
122.0  
17.1  
27.3  
32.3  
37.5  
46.4  
60.4  
13.5  
26.2  
32.6  
39.0  
50.1  
208-3-60 14.7 130.0 23.0  
230-3-60 14.7 130.0 23.0  
2.3  
2.3  
5.0  
5.0  
0.0  
0.0  
048  
(4.0)  
8.5  
460-3-60 7.7 64.0 12.0  
575-3-60 6.4 52.0 10.0  
1.3  
1.3  
2.2  
2.2  
0.0  
0.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
61.6  
-
13.3  
18.8  
26.6  
39.9  
53.2  
74.3  
-
208-3-60 19.3 137.0 27.0  
2.3  
2.3  
6.6  
6.6  
0.0  
0.0  
230-3-60 19.3 137.0 27.0  
060  
(5.0)  
8.5  
12.7  
17.1  
24.5  
36.1  
-
10.6  
16.0  
21.3  
30.5  
460-3-60 10.0 62.0 14.0  
575-3-60 7.9 50.0 11.0  
1.3  
1.3  
3.3  
3.3  
0.0  
0.0  
1. Minimum Circuit Ampacity.  
2. Dual Element, Time Delay Type.  
3. HACR type per NEC.  
16  
Johnson Controls Unitary Products  
 
 
364985-XIM-B-0508  
TABLE 10: ELECTRICAL DATA - BQ036-060 BELT DRIVE W/O POWERED CONVENIENCE OUTLET  
OD Fan Supply  
Pwr  
Conv  
Outlet  
Max  
Compressors  
(each)  
2
Motors  
(each)  
Blower  
Motor  
Electric Heat Option  
Fuse /  
Breaker  
Size  
1
Size  
(Tons)  
MCA  
3
Volt  
(Amps)  
RLA LRA MCC  
FLA  
FLA  
FLA  
Model  
kW  
Stages  
Amps  
(Amps)  
30  
40  
45  
50  
70  
80  
30  
45  
50  
60  
70  
90  
15  
25  
30  
35  
45  
15  
25  
30  
35  
35  
50  
50  
60  
70  
90  
35  
50  
50  
60  
80  
90  
20  
25  
30  
35  
45  
15  
25  
35  
40  
40  
60  
60  
70  
80  
90  
110  
40  
60  
60  
70  
80  
100  
125  
25  
30  
35  
40  
50  
60  
20  
30  
35  
40  
50  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E07  
E10  
E15  
E20  
E30  
None  
E10  
E15  
E20  
E30  
-
-
-
21.8  
35.7  
41.2  
49.5  
63.1  
76.9  
21.8  
37.7  
44.3  
53.6  
69.6  
85.5  
11.0  
21.2  
26.2  
31.4  
40.3  
8.8  
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
22.2  
-
5.3  
7.5  
10.6  
15.9  
21.2  
29.6  
-
6.8  
10.1  
13.6  
19.5  
28.8  
-
10.6  
15.9  
21.2  
30.4  
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
2
-
1
1
1
2
2
2
-
1
1
2
2
2
-
1
1
2
2
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
208-3-60 11.9 85.0 16.7  
1.7  
5.2  
0.0  
230-3-60 11.9 85.0 16.7  
1.7  
5.2  
0.0  
036  
(3.0)  
8.5  
460-3-60 5.9 42.0  
575-3-60 4.8 34.0  
8.2  
6.7  
1.0  
1.0  
2.6  
2.0  
0.0  
0.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
21.5  
27.9  
34.3  
25.9  
39.8  
45.3  
53.6  
67.2  
81.0  
25.9  
41.8  
48.4  
57.7  
73.7  
89.6  
13.5  
23.7  
28.7  
34.0  
42.8  
11.0  
23.8  
30.2  
36.5  
31.6  
45.5  
51.1  
59.4  
72.9  
86.8  
108.7  
31.6  
47.6  
54.2  
63.5  
79.4  
95.4  
120.6  
16.4  
26.6  
31.6  
36.8  
45.7  
59.7  
12.9  
25.6  
32.0  
38.4  
49.4  
208-3-60 14.7 130.0 23.0  
230-3-60 14.7 130.0 23.0  
2.3  
2.3  
5.2  
5.2  
0.0  
0.0  
048  
(4.0)  
8.5  
460-3-60 7.7 64.0 12.0  
575-3-60 6.4 52.0 10.0  
1.3  
1.3  
2.6  
2.0  
0.0  
0.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
61.6  
-
13.3  
18.8  
26.6  
39.9  
53.2  
74.3  
-
208-3-60 19.3 137.0 27.0  
2.3  
2.3  
5.2  
5.2  
0.0  
0.0  
230-3-60 19.3 137.0 27.0  
060  
(5.0)  
8.5  
12.7  
17.1  
24.5  
36.1  
-
10.6  
16.0  
21.3  
30.5  
460-3-60 10.0 62.0 14.0  
575-3-60 7.9 50.0 11.0  
1.3  
1.3  
2.6  
2.0  
0.0  
0.0  
1. Minimum Circuit Ampacity.  
2. Dual Element, Time Delay Type.  
3. HACR type per NEC.  
Johnson Controls Unitary Products  
17  
 
 
364985-XIM-B-0508  
TABLE 11: ELECTRICAL DATA - BQ036-060 BELT DRIVE HIGH STATIC W/O POWERED CONVENIENCE OUTLET  
OD Fan Supply  
Pwr  
Conv  
Outlet  
Max  
Compressors  
(each)  
2
Motors  
(each)  
Blower  
Motor  
Electric Heat Option  
Fuse /  
Breaker  
Size  
1
Size  
(Tons)  
MCA  
3
Volt  
(Amps)  
RLA LRA MCC  
FLA  
FLA  
FLA  
Model  
kW  
Stages  
Amps  
(Amps)  
30  
40  
45  
50  
70  
80  
30  
45  
50  
60  
70  
90  
15  
25  
30  
35  
45  
15  
25  
30  
35  
35  
50  
50  
60  
70  
90  
35  
50  
50  
60  
80  
90  
20  
25  
30  
35  
45  
15  
25  
35  
40  
45  
60  
60  
70  
80  
90  
125  
45  
60  
70  
70  
90  
100  
125  
25  
35  
40  
40  
50  
70  
20  
30  
35  
40  
60  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E07  
E10  
E15  
E20  
E30  
None  
E10  
E15  
E20  
E30  
-
-
-
21.8  
35.7  
41.2  
49.5  
63.1  
76.9  
21.8  
37.7  
44.3  
53.6  
69.6  
85.5  
11.0  
21.2  
26.2  
31.4  
40.3  
8.8  
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
22.2  
-
5.3  
7.5  
10.6  
15.9  
21.2  
29.6  
-
6.8  
10.1  
13.6  
19.5  
28.8  
-
10.6  
15.9  
21.2  
30.4  
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
2
-
1
1
1
2
2
2
-
1
1
2
2
2
-
1
1
2
2
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
208-3-60 11.9 85.0 16.7  
1.7  
5.2  
0.0  
230-3-60 11.9 85.0 16.7  
1.7  
5.2  
0.0  
036  
(3.0)  
8.5  
460-3-60 5.9 42.0  
575-3-60 4.8 34.0  
8.2  
6.7  
1.0  
1.0  
2.6  
2.0  
0.0  
0.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
21.5  
27.9  
34.3  
25.9  
39.8  
45.3  
53.6  
67.2  
81.0  
25.9  
41.8  
48.4  
57.7  
73.7  
89.6  
13.5  
23.7  
28.7  
34.0  
42.8  
11.0  
23.8  
30.2  
36.5  
34.6  
48.5  
54.1  
62.4  
75.9  
89.8  
111.7  
34.6  
50.6  
57.2  
66.5  
82.4  
98.4  
123.6  
17.9  
28.1  
33.1  
38.3  
47.2  
61.2  
14.5  
27.2  
33.6  
40.0  
51.0  
208-3-60 14.7 130.0 23.0  
230-3-60 14.7 130.0 23.0  
2.3  
2.3  
5.2  
5.2  
0.0  
0.0  
048  
(4.0)  
8.5  
460-3-60 7.7 64.0 12.0  
575-3-60 6.4 52.0 10.0  
1.3  
1.3  
2.6  
2.0  
0.0  
0.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
61.6  
-
13.3  
18.8  
26.6  
39.9  
53.2  
74.3  
-
208-3-60 19.3 137.0 27.0  
2.3  
2.3  
8.2  
8.2  
0.0  
0.0  
230-3-60 19.3 137.0 27.0  
060  
(5.0)  
8.5  
12.7  
17.1  
24.5  
36.1  
-
10.6  
16.0  
21.3  
30.5  
460-3-60 10.0 62.0 14.0  
575-3-60 7.9 50.0 11.0  
1.3  
1.3  
4.1  
3.6  
0.0  
0.0  
1. Minimum Circuit Ampacity.  
2. Dual Element, Time Delay Type.  
3. HACR type per NEC.  
18  
Johnson Controls Unitary Products  
 
 
364985-XIM-B-0508  
TABLE 12: ELECTRICAL DATA - BQ036-060 DIRECT DRIVE W/POWERED CONVENIENCE OUTLET  
OD Fan Supply  
Pwr  
Conv  
Outlet  
Max  
Compressors  
(each)  
2
Motors  
(each)  
Blower  
Motor  
Electric Heat Option  
Fuse /  
Breaker  
Size  
1
Size  
(Tons)  
MCA  
3
Volt  
(Amps)  
RLA LRA MCC  
FLA  
FLA  
FLA  
Model  
kW  
Stages  
Amps  
(Amps)  
40  
50  
60  
60  
80  
90  
40  
50  
60  
70  
80  
100  
20  
30  
35  
40  
45  
15  
30  
35  
40  
45  
60  
60  
70  
80  
100  
45  
60  
60  
70  
90  
100  
25  
30  
35  
40  
50  
20  
30  
35  
45  
60  
70  
70  
80  
90  
100  
125  
60  
70  
80  
80  
100  
110  
150  
30  
40  
40  
45  
60  
70  
25  
35  
40  
45  
60  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E07  
E10  
E15  
E20  
E30  
None  
E10  
E15  
E20  
E30  
-
-
-
31.0  
44.9  
50.4  
58.7  
72.3  
86.1  
31.0  
46.9  
53.5  
62.8  
78.8  
94.7  
15.6  
25.8  
30.8  
36.0  
44.9  
12.6  
25.3  
31.7  
38.1  
35.7  
49.6  
55.1  
63.4  
77.0  
90.8  
35.7  
51.6  
58.2  
67.5  
83.5  
99.4  
18.1  
28.3  
33.3  
38.6  
47.4  
14.8  
27.5  
33.9  
40.3  
43.0  
56.9  
62.5  
70.8  
84.3  
98.2  
120.1  
43.0  
59.0  
65.6  
74.9  
90.8  
106.8  
132.0  
22.1  
32.3  
37.3  
42.5  
51.4  
65.4  
17.5  
30.2  
36.6  
43.0  
54.1  
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
22.2  
-
5.3  
7.5  
10.6  
15.9  
21.2  
29.6  
-
6.8  
10.1  
13.6  
19.5  
28.8  
-
10.6  
15.9  
21.2  
30.4  
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
2
-
1
1
1
2
2
2
-
1
1
2
2
2
-
1
1
2
2
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
208-3-60 11.9 85.0 16.7  
1.7  
4.4  
10.0  
230-3-60 11.9 85.0 16.7  
1.7  
4.4  
10.0  
036  
(3.0)  
8.5  
460-3-60 5.9 42.0  
575-3-60 4.8 34.0  
8.2  
6.7  
1.0  
1.0  
2.2  
2.2  
5.0  
4.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
208-3-60 14.7 130.0 23.0  
230-3-60 14.7 130.0 23.0  
2.3  
2.3  
5.0  
5.0  
10.0  
10.0  
048  
(4.0)  
8.5  
460-3-60 7.7 64.0 12.0  
575-3-60 6.4 52.0 10.0  
1.3  
1.3  
2.2  
2.2  
5.0  
4.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
61.6  
-
13.3  
18.8  
26.6  
39.9  
53.2  
74.3  
-
208-3-60 19.3 137.0 27.0  
2.3  
2.3  
6.6  
6.6  
10.0  
10.0  
230-3-60 19.3 137.0 27.0  
060  
(5.0)  
8.5  
12.7  
17.1  
24.5  
36.1  
-
10.6  
16.0  
21.3  
30.5  
460-3-60 10.0 62.0 14.0  
575-3-60 7.9 50.0 11.0  
1.3  
1.3  
3.3  
3.3  
5.0  
4.0  
1. Minimum Circuit Ampacity.  
2. Dual Element, Time Delay Type.  
3. HACR type per NEC.  
Johnson Controls Unitary Products  
19  
 
 
364985-XIM-B-0508  
TABLE 13: ELECTRICAL DATA - BQ036-060 BELT DRIVE W/POWERED CONVENIENCE OUTLET  
OD Fan Supply  
Pwr  
Conv  
Outlet  
Max  
Compressors  
(each)  
2
Motors  
(each)  
Blower  
Motor  
Electric Heat Option  
Fuse /  
Breaker  
Size  
(Amps)  
40  
1
Size  
(Tons)  
MCA  
3
Volt  
(Amps)  
RLA LRA MCC  
FLA  
FLA  
FLA  
Model  
kW  
Stages  
Amps  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E07  
E10  
E15  
E20  
E30  
None  
E10  
E15  
E20  
E30  
-
-
-
31.8  
45.7  
51.2  
59.5  
73.1  
86.9  
31.8  
47.7  
54.3  
63.6  
79.6  
95.5  
16.0  
26.2  
31.2  
36.4  
45.3  
12.8  
25.5  
31.9  
38.3  
35.9  
49.8  
55.3  
63.6  
77.2  
91.0  
35.9  
51.8  
58.4  
67.7  
83.7  
99.6  
18.5  
28.7  
33.7  
39.0  
47.8  
15.0  
27.8  
34.2  
40.5  
41.6  
55.5  
61.1  
69.4  
82.9  
96.8  
118.7  
41.6  
57.6  
64.2  
73.5  
89.4  
105.4  
130.6  
21.4  
31.6  
36.6  
41.8  
50.7  
64.7  
16.9  
29.6  
36.0  
42.4  
53.4  
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
22.2  
-
5.3  
7.5  
10.6  
15.9  
21.2  
29.6  
-
6.8  
10.1  
13.6  
19.5  
28.8  
-
10.6  
15.9  
21.2  
30.4  
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
2
-
1
1
1
2
2
2
-
1
1
2
2
2
-
1
1
2
2
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
50  
60  
60  
80  
90  
40  
50  
60  
70  
80  
100  
20  
30  
35  
40  
50  
15  
30  
35  
40  
50  
60  
60  
70  
80  
100  
50  
60  
60  
70  
90  
100  
25  
30  
35  
40  
50  
20  
30  
35  
45  
60  
70  
70  
80  
90  
100  
125  
60  
70  
70  
80  
90  
110  
150  
30  
35  
40  
45  
60  
70  
20  
30  
40  
45  
60  
208-3-60 11.9 85.0 16.7  
1.7  
5.2  
10.0  
230-3-60 11.9 85.0 16.7  
1.7  
5.2  
10.0  
036  
(3.0)  
8.5  
460-3-60 5.9 42.0  
575-3-60 4.8 34.0  
8.2  
6.7  
1.0  
1.0  
2.6  
2.0  
5.0  
4.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
208-3-60 14.7 130.0 23.0  
230-3-60 14.7 130.0 23.0  
2.3  
2.3  
5.2  
5.2  
10.0  
10.0  
048  
(4.0)  
8.5  
460-3-60 7.7 64.0 12.0  
575-3-60 6.4 52.0 10.0  
1.3  
1.3  
2.6  
2.0  
5.0  
4.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
61.6  
-
13.3  
18.8  
26.6  
39.9  
53.2  
74.3  
-
208-3-60 19.3 137.0 27.0  
2.3  
2.3  
5.2  
5.2  
10.0  
10.0  
230-3-60 19.3 137.0 27.0  
060  
(5.0)  
8.5  
12.7  
17.1  
24.5  
36.1  
-
10.6  
16.0  
21.3  
30.5  
460-3-60 10.0 62.0 14.0  
575-3-60 7.9 50.0 11.0  
1.3  
1.3  
2.6  
2.0  
5.0  
4.0  
1. Minimum Circuit Ampacity.  
2. Dual Element, Time Delay Type.  
3. HACR type per NEC.  
20  
Johnson Controls Unitary Products  
 
 
364985-XIM-B-0508  
TABLE 14: ELECTRICAL DATA - BQ036-060 BELT DRIVE HIGH STATIC W/POWERED CONVENIENCE OUTLET  
OD Fan Supply  
Pwr  
Conv  
Outlet  
Max  
Compressors  
(each)  
2
Motors  
(each)  
Blower  
Motor  
Electric Heat Option  
Fuse /  
Breaker  
Size  
1
Size  
(Tons)  
MCA  
3
Volt  
(Amps)  
RLA LRA MCC  
FLA  
FLA  
FLA  
Model  
kW  
Stages  
Amps  
(Amps)  
40  
50  
60  
60  
80  
90  
40  
50  
60  
70  
80  
100  
20  
30  
35  
40  
50  
15  
30  
35  
40  
50  
60  
60  
70  
80  
100  
50  
60  
60  
70  
90  
100  
25  
30  
35  
40  
50  
20  
30  
35  
45  
60  
70  
70  
80  
90  
100  
125  
60  
70  
80  
80  
100  
110  
150  
30  
40  
45  
45  
60  
70  
25  
35  
40  
45  
60  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
None  
E07  
E10  
E15  
E20  
None  
E10  
E15  
E20  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E05  
E07  
E10  
E15  
E20  
E30  
None  
E07  
E10  
E15  
E20  
E30  
None  
E10  
E15  
E20  
E30  
-
-
-
31.8  
45.7  
51.2  
59.5  
73.1  
86.9  
31.8  
47.7  
54.3  
63.6  
79.6  
95.5  
16.0  
26.2  
31.2  
36.4  
45.3  
12.8  
25.5  
31.9  
38.3  
35.9  
49.8  
55.3  
63.6  
77.2  
91.0  
35.9  
51.8  
58.4  
67.7  
83.7  
99.6  
18.5  
28.7  
33.7  
39.0  
47.8  
15.0  
27.8  
34.2  
40.5  
44.6  
58.5  
64.1  
72.4  
85.9  
99.8  
121.7  
44.6  
60.6  
67.2  
76.5  
92.4  
108.4  
133.6  
22.9  
33.1  
38.1  
43.3  
52.2  
66.2  
18.5  
31.2  
37.6  
44.0  
55.0  
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
-
5.3  
7.5  
10.6  
15.9  
21.2  
-
6.8  
10.1  
13.6  
19.5  
-
10.6  
15.9  
21.2  
-
4.0  
5.6  
8.0  
11.9  
15.9  
22.2  
-
5.3  
7.5  
10.6  
15.9  
21.2  
29.6  
-
6.8  
10.1  
13.6  
19.5  
28.8  
-
10.6  
15.9  
21.2  
30.4  
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
-
1
1
1
2
2
-
1
1
2
2
-
1
1
2
-
1
1
1
2
2
2
-
1
1
1
2
2
2
-
1
1
2
2
2
-
1
1
2
2
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
208-3-60 11.9 85.0 16.7  
1.7  
5.2  
10.0  
230-3-60 11.9 85.0 16.7  
1.7  
5.2  
10.0  
036  
(3.0)  
8.5  
460-3-60 5.9 42.0  
575-3-60 4.8 34.0  
8.2  
6.7  
1.0  
1.0  
2.6  
2.0  
5.0  
4.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
-
13.3  
18.8  
26.6  
39.9  
53.2  
-
208-3-60 14.7 130.0 23.0  
230-3-60 14.7 130.0 23.0  
2.3  
2.3  
5.2  
5.2  
10.0  
10.0  
048  
(4.0)  
8.5  
460-3-60 7.7 64.0 12.0  
575-3-60 6.4 52.0 10.0  
1.3  
1.3  
2.6  
2.0  
5.0  
4.0  
12.7  
17.1  
24.5  
-
10.6  
16.0  
21.3  
-
11.1  
15.5  
22.2  
33.0  
44.1  
61.6  
-
13.3  
18.8  
26.6  
39.9  
53.2  
74.3  
-
208-3-60 19.3 137.0 27.0  
2.3  
2.3  
8.2  
8.2  
10.0  
10.0  
230-3-60 19.3 137.0 27.0  
060  
(5.0)  
8.5  
12.7  
17.1  
24.5  
36.1  
-
10.6  
16.0  
21.3  
30.5  
460-3-60 10.0 62.0 14.0  
575-3-60 7.9 50.0 11.0  
1.3  
1.3  
4.1  
3.6  
5.0  
4.0  
1. Minimum Circuit Ampacity.  
2. Dual Element, Time Delay Type.  
3. HACR type per NEC.  
Johnson Controls Unitary Products  
21  
 
 
364985-XIM-B-0508  
1
TABLE 15: ELECTRIC HEAT CORRECTION  
FACTORS  
TABLE 16: VOLTAGE LIMITATIONS  
VOLTAGE  
POWER SUPPLY  
NOMINAL VOLTAGE  
VOLTAGE  
kW CAP. MULTIPLIER  
MIN.  
MAX.  
208  
230  
460  
575  
0.75  
0.92  
0.92  
0.92  
208  
240  
480  
600  
208/230-3-60  
187  
253  
460-3-60  
575-3-60  
414  
518  
506  
630  
1. Utilization Range “A” in accordance with ARI Standard  
110.  
FIGURE 7: UNIT DIMENSIONS (3 - 5 TON HEAT PUMP) FRONT VIEW  
22  
Johnson Controls Unitary Products  
 
     
364985-XIM-B-0508  
DETAIL “A”  
FIGURE 8 - UNIT WITH ECONOMIZER RAINHOOD  
DETAIL “B”  
FIGURE 9 - UNIT WITH FIXED OUTDOOR AIR/MOTORIZED DAMPER RAINHOOD  
Johnson Controls Unitary Products  
23  
 
   
364985-XIM-B-0508  
FIGURE 10 - UNIT DIMENSIONS (REAR VIEW)  
TABLE 18: MINIMUM CLEARANCES  
CLEARANCE  
LOCATION  
24” (Cooling/Electric Heat)  
32” (Gas Heat)  
Filter Access  
Front  
Blower Motor Access  
Dot Plugs  
12” (Less Economizer)  
36” (With Economizer or Fixed  
Air/Motorized Damper)  
Rear  
24” (Less Economizer)  
36” (With Economizer)  
Field-Supplied Disconnect  
Switch Location  
Left Side (Filter Access)  
Right Side (Cond. Coil)  
Below Unit1  
24”  
0”  
Mounting Bracket for  
Disconnect Switch  
(Field Supplied)  
A,B  
Wiring Entry  
(See Detail “B”)  
72” (For  
Condenser Air Discharge)  
Control Box Access  
Above Unit2  
Disconnect Switch Location  
and Motor Access Panel for  
Unit with “Belt-Drive” Option  
1. Units may be installed on combustible floors made  
from wood or class A, B, or C roof covering material.  
2. Units must be installed outdoors. Overhanging struc-  
tures or shrubs should not obstruct condenser air dis-  
charge outlet.  
FIGURE 11 - DISCONNECT/BLOWER ACCESS  
LOCATION  
TABLE 17: UTILITIES ENTRY  
HOLE  
OPENING SIZE (DIA.)  
USED FOR  
Side  
Bottom  
Side  
1
2
A
7/8” KO  
Control Wiring  
Power Wiring  
B
2” KO  
Bottom  
C
D
1-5/8” KO  
1-1/2” KO  
Gas Piping (Front)  
Gas Piping (Bottom)  
1. Opening in the bottom to the unit can be located by the  
side in the insulation.  
2. Do not remove the 2” knockout ring.  
24  
Johnson Controls Unitary Products  
 
         
364985-XIM-B-0508  
TABLE 19: SUPPLY AIR BLOWER PERFORMANCE (BQ036 BELT DRIVE) - SIDE DUCT APPLICATION  
Available External Static Pressure - IWG1  
Air  
Flow  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
(CFM)  
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP  
Field Supplied Drive  
Standard Drive Option  
HIgh Static Drive Option  
800  
678  
699  
727  
759  
795  
0.37  
0.42  
0.45  
0.51  
0.60  
761  
782  
810  
842  
878  
0.44  
0.49  
0.52  
0.58  
0.67  
840  
862  
889  
922  
958  
0.52  
0.56  
0.60  
0.65  
917  
939  
966  
998  
0.60  
991  
0.69 1062 0.77 1130 0.87 1195 0.96 1259 1.06 1320 1.17  
1000  
1200  
1400  
1600  
0.64 1012 0.73 1083 0.82 1151 0.91 1217 1.01 1280 1.11 1341 1.21  
0.68 1040 0.76 1110 0.85 1179 0.95 1244 1.04 1308 1.14 1369 1.24  
0.73 1072 0.82 1143 0.91 1211 1.00 1276 1.10 1340 1.20 1401 1.30  
0.74 1035 0.82 1108 0.91 1179 1.00 1247 1.09 1313 1.19 1376 1.28 1438 1.39  
4
FS  
1. Blower performance includes 1” filters. See STATIC RESISTANCE table for additional applications.  
2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP.  
3. kW = BHP x 0.932.  
4. Field Supplied Drive.  
TABLE 20: SUPPLY AIR BLOWER PERFORMANCE (BQ036 BELT DRIVE) - BOTTOM DUCT APPLICATION  
Available External Static Pressure - IWG1  
Air  
Flow  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
(CFM)  
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP  
Field Supplied Drive  
Standard Drive Option  
HIgh Static Drive Option  
800  
661  
685  
714  
749  
789  
0.39  
0.43  
0.46  
0.52  
0.60  
751  
775  
805  
840  
880  
0.45  
0.50  
0.53  
0.58  
0.67  
838  
862  
892  
927  
967  
0.53  
0.57  
0.60  
922  
945  
975  
0.61 1002 0.69 1079 0.78 1153 0.87 1225 0.96 1294 1.06 1361 1.16  
0.65 1025 0.73 1103 0.82 1177 0.91 1248 1.00 1317 1.10 1384 1.20  
0.68 1055 0.76 1132 0.85 1207 0.94 1278 1.04 1347 1.13 1414 1.23  
1000  
1200  
1400  
1600  
0.66 1010 0.74 1090 0.82 1167 0.91 1242 1.00 1313 1.09 1382 1.19 1449 1.29  
0.74 1050 0.82 1130 0.91 1207 0.99 1282 1.08 1353 1.18 1422 1.27 1489 1.37  
Field Supplied Drive  
1. Blower performance includes 1” filters. See STATIC RESISTANCE table for additional applications.  
2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP.  
3. kW = BHP x 0.932.  
TABLE 21: SUPPLY AIR BLOWER PERFORMANCE (BQ048 BELT DRIVE) - SIDE DUCT APPLICATION  
Available External Static Pressure - IWG1  
Air  
Flow  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
(CFM)  
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP  
Field Supplied Drive  
Standard Drive Option  
HIgh Static Drive Option  
1000  
1200  
1400  
1600  
1800  
2000  
656  
680  
706  
737  
774  
815  
0.41  
0.47  
0.56  
0.67  
0.80  
0.95  
757  
781  
807  
839  
875  
916  
0.46  
0.52  
0.61  
0.72  
0.85  
851  
874  
901  
932  
968  
0.52  
0.58  
0.67  
937  
960  
987  
0.58 1017 0.66 1092 0.73 1162 0.81 1228 0.90 1291 0.99 1351 1.08  
0.65 1041 0.72 1115 0.80 1185 0.88 1251 0.96 1314 1.05 1375 1.14  
0.73 1067 0.80 1142 0.88 1212 0.96 1278 1.05 1341 1.13 1401 1.22  
0.77 1018 0.84 1098 0.91 1173 0.99 1243 1.07 1309 1.15 1372 1.24 1433 1.33  
0.90 1055 0.97 1135 1.04 1209 1.12 1279 1.20 1345 1.28 1408 1.37 1469 1.46  
1.00 1010 1.06 1096 1.12 1176 1.19 1251 1.27 1321 1.35 1387 1.44 1450 1.52 1510 1.61  
1. Blower performance includes 1” filters. See STATIC RESISTANCE table for additional applications.  
2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP.  
3. kW = BHP x 0.932.  
TABLE 22: SUPPLY AIR BLOWER PERFORMANCE (BQ048 BELT DRIVE) - BOTTOM DUCT APPLICATION  
Available External Static Pressure - IWG1  
Air  
Flow  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
(CFM)  
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP  
Field Supplied Drive  
Standard Drive Option  
HIgh Static Drive Option  
1000  
1200  
1400  
1600  
1800  
2000  
638  
663  
692  
726  
766  
811  
0.42  
0.48  
0.57  
0.67  
0.80  
0.95  
748  
773  
802  
836  
876  
921  
0.47  
0.53  
0.61  
0.72  
0.85  
849  
875  
904  
938  
977  
0.53  
0.59  
0.67  
944  
969  
998  
0.59 1031 0.66 1112 0.74 1188 0.82 1260 0.90 1329 0.98 1395 1.07  
0.65 1056 0.72 1138 0.80 1214 0.88 1286 0.96 1354 1.04 1420 1.13  
0.73 1085 0.80 1167 0.88 1243 0.96 1315 1.04 1383 1.13 1449 1.21  
0.78 1032 0.84 1119 0.91 1201 0.98 1277 1.06 1349 1.15 1417 1.23 1483 1.32  
0.90 1072 0.97 1159 1.04 1240 1.11 1316 1.19 1388 1.27 1457 1.36 1523 1.45  
0.99 1023 1.05 1117 1.11 1204 1.18 1285 1.26 1362 1.34 1434 1.42 1502 1.51 1568 1.59  
4
FS  
1. Blower performance includes 1” filters. See STATIC RESISTANCE table for additional applications.  
2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP.  
3. kW = BHP x 0.932.  
4. Field Supplied Drive.  
Johnson Controls Unitary Products  
25  
 
       
364985-XIM-B-0508  
TABLE 23: SUPPLY AIR BLOWER PERFORMANCE (BQ060 BELT DRIVE) - SIDE DUCT APPLICATION  
Available External Static Pressure - IWG1  
0.8 1.0 1.2 1.4  
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP  
Air  
Flow  
(CFM)  
0.2  
0.4  
0.6  
1.6  
1.8  
2.0  
Field Supplied Drive  
Standard Drive Option  
HIgh Static Drive Option  
1200  
1400  
1600  
1800  
2000  
2200  
2400  
2600  
680  
706  
737  
774  
815  
862  
913  
969  
0.47  
0.56  
0.67  
0.80  
0.95  
1.12  
781  
807  
839  
875  
916  
963  
0.52  
0.61  
0.72  
0.85  
874  
901  
932  
968  
0.58  
0.67  
960  
987  
0.65 1041 0.72 1115 0.80 1185 0.88 1251 0.96 1314 1.05 1375 1.14  
0.73 1067 0.80 1142 0.88 1212 0.96 1278 1.05 1341 1.13 1401 1.22  
0.77 1018 0.84 1098 0.91 1173 0.99 1243 1.07 1309 1.15 1372 1.24 1433 1.33  
0.90 1055 0.97 1135 1.04 1209 1.12 1279 1.20 1345 1.28 1408 1.37 1469 1.46  
1.00 1010 1.06 1096 1.12 1176 1.19 1251 1.27 1321 1.35 1387 1.44 1450 1.52 1510 1.61  
1.17 1056 1.23 1142 1.29 1223 1.36 1297 1.44 1367 1.52 1433 1.61 1496 1.70 1557 1.78  
1.31 1014 1.36 1107 1.42 1194 1.49 1274 1.56 1349 1.63 1419 1.72 1485 1.80 1548 1.89 1608 1.98  
1.52 1070 1.57 1163 1.63 1250 1.70 1330 1.77 1405 1.84 1475 1.93 1541 2.01 1603 2.10 1664 2.19  
1. Blower performance includes 1” filters. See STATIC RESISTANCE table for additional applications.  
2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP.  
3. kW = BHP x 0.932.  
TABLE 24: SUPPLY AIR BLOWER PERFORMANCE (BQ060 BELT DRIVE) - BOTTOM DUCT APPLICATION  
Available External Static Pressure - IWG1  
Air  
Flow  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
(CFM)  
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP  
Field Supplied Drive  
Standard Drive Option  
HIgh Static Drive Option  
1200  
1400  
1600  
1800  
2000  
2200  
2400  
2600  
663  
692  
726  
766  
811  
861  
917  
978  
0.48  
0.57  
0.67  
0.80  
0.95  
1.11  
773  
802  
836  
876  
921  
971  
0.53  
0.61  
0.72  
0.85  
875  
904  
938  
977  
0.59  
0.67  
969  
998  
0.65 1056 0.72 1138 0.80 1214 0.88 1286 0.96 1354 1.04 1420 1.13  
0.73 1085 0.80 1167 0.88 1243 0.96 1315 1.04 1383 1.13 1449 1.21  
0.78 1032 0.84 1119 0.91 1201 0.98 1277 1.06 1349 1.15 1417 1.23 1483 1.32  
0.90 1072 0.97 1159 1.04 1240 1.11 1316 1.19 1388 1.27 1457 1.36 1523 1.45  
0.99 1023 1.05 1117 1.11 1204 1.18 1285 1.26 1362 1.34 1434 1.42 1502 1.51 1568 1.59  
1.16 1073 1.22 1167 1.28 1255 1.35 1336 1.43 1412 1.51 1484 1.59 1553 1.68 1619 1.76  
1.30 1027 1.35 1129 1.41 1223 1.47 1311 1.54 1392 1.62 1468 1.69 1540 1.78 1609 1.86 1675 1.95  
1.51 1088 1.56 1190 1.61 1284 1.68 1371 1.75 1453 1.82 1529 1.90 1601 1.98 1670 2.07 1736 2.15  
Field Supplied Drive  
1. Blower performance includes 1” filters. See STATIC RESISTANCE table for additional applications.  
2. See RPM SELECTION table to determine desired motor sheave setting and to determine the maximum continuous BHP.  
3. kW = BHP x 0.932.  
TABLE 25: SUPPLY AIR BLOWER PERFORMANCE (BQ036, 048 & 060 DIRECT DRIVE) -  
SIDE DUCT APPLICATION  
2
AVAILABLE EXTERNAL STATIC PRESSURE - IWG  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1
UNIT  
TONNAGE  
MOTOR  
SPEED  
HI  
-
-
-
-
-
-
1720 825 1665 795 1600 765 1540 735 1490 700 1380 670  
1660 850 1630 820 1590 780 1550 750 1500 720 1450 690 1400 665 1360 650 1270 610  
1470 750 1440 725 1410 700 1370 675 1330 650 1290 625 1250 610 1220 600 1130 560  
2000 1010 1950 975 1905 945 1840 910 1770 825 1660 825 1530 775  
3
MED  
LOW  
HI  
3
-
-
-
-
MED  
LOW  
HI  
1810 910 1780 880 1740 850 1700 825 1665 800 1620 775 1560 740 1480 700 1390 660  
1635 810 1610 780 1580 760 1555 740 1540 730 1510 715 1460 690 1400 660 1300 615  
4
-
-
-
-
2500 1400 2420 1350 2340 1300 2260 1250 2160 1190 2060 1135 1925 1065  
MED  
LOW  
2390 1350 2350 1300 2300 1255 2245 1210 2190 1165 2130 1120 2065 1075 1990 1030 1900 970  
2270 1320 2230 1270 2190 1220 2145 1170 2090 1110 2030 1070 1960 1020 1890 970 1810 920  
5
1. Factory set on medium speed tap.  
2. Includes allowances for a wet evaporator coil, 1” filters. Refer to STATIC RESISTANCES Table for resistance values.  
3. Side Flow application (230/460/575 Volts)  
26  
Johnson Controls Unitary Products  
 
       
364985-XIM-B-0508  
TABLE 26: SUPPLY AIR BLOWER PERFORMANCE (BQ036, 048 & 060 DIRECT DRIVE) -  
BOTTOM DUCT APPLICATION  
2
AVAILABLE EXTERNAL STATIC PRESSURE - IWG  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
1
UNIT  
TONNAGE  
MOTOR  
SPEED  
HI  
-
-
-
-
-
-
1661 825 1608 795 1545 765 1487 735 1439 700 1333 670  
1603 850 1574 820 1535 780 1497 750 1449 720 1401 690 1352 665 1314 650 1227 610  
1420 750 1391 725 1362 700 1323 675 1285 650 1246 625 1208 610 1179 600 1092 560  
1931 1010 1882 975 1839 945 1776 910 1709 825 1603 825 1478 775  
3
MED  
LOW  
HI  
3
-
-
-
-
MED  
LOW  
HI  
1748 910 1719 880 1680 850 1641 825 1608 800 1564 775 1507 740 1429 700 1343 660  
1579 810 1555 780 1526 760 1502 740 1487 730 1458 715 1410 690 1352 660 1256 615  
4
-
-
-
-
2412 1400 2335 1350 2258 1300 2181 1250 2085 1190 1988 1135 1858 1065  
MED  
LOW  
2306 1350 2268 1300 2220 1255 2167 1210 2114 1165 2056 1120 1993 1075 1921 1030 1834 970  
2191 1320 2152 1270 2114 1220 2070 1170 2017 1110 1960 1070 1892 1020 1825 970 1748 920  
5
1. Factory set on medium speed tap.  
2. Includes allowances for a wet evaporator coil, 1” filters. Refer to STATIC RESISTANCES Table for resistance values.  
3. Side Flow application (230/460/575 Volts)  
TABLE 27: BELT DRIVE RPM SELECTION  
Size  
(Tons)  
Max  
BHP  
Motor  
Sheave  
Blower  
Sheave  
5 Turns 4 Turns 3 Turns 2 Turns  
1 Turn  
Open  
Fully  
Closed  
HP  
Open  
Open  
Open  
Open  
1.5  
1.5  
1.5  
1.5  
1.5  
2
1.73  
1.73  
1.73  
1.73  
1.73  
2.3  
1VL44  
1VP56  
1VL44  
1VP56  
1VL44  
1VP56  
AK64  
AK66  
AK56  
AK61  
AK56  
AK56  
805  
865  
920  
980  
1035  
1335  
1195  
1455  
1195  
1590  
1095  
1390  
1260  
1515  
1260  
1660  
036  
(3)  
1115  
930  
1170  
995  
1225  
1060  
1330  
1060  
1460  
1280  
1130  
1390  
1130  
1525  
048  
(4)  
1210  
930  
1270  
995  
060  
(5)  
1325  
1395  
TABLE 28: BELT DRIVE BLOWER MOTOR AND DRIVE DATA  
Motor  
Eff.  
Motor Sheave  
Blower Sheave  
Size  
(Tons)  
Belt  
Datum Dia.  
(in.)  
Datum Dia.  
(in.)  
HP  
RPM  
SF  
Frame  
Bore (in.) Model  
Bore (in.) Model  
1-1/2  
1-1/2  
1-1/2  
1-1/2  
1-1/2  
2
1725  
1725  
1725  
1725  
1725  
1725  
0.8  
0.8  
0.8  
0.8  
0.8  
0.8  
1.15  
1.15  
1.15  
1.15  
1.15  
1.15  
56  
56  
56  
56  
56  
56  
2.8 - 3.8  
4.0 - 5.0  
2.8 - 3.8  
4.0 - 5.0  
2.8 - 3.8  
4.0 - 5.0  
7/8  
7/8  
7/8  
7/8  
7/8  
7/8  
1VL44  
1VP56  
1VL44  
1VP56  
1VL44  
1VP56  
6.0  
6.2  
5.2  
5.7  
5.2  
5.2  
1
1
1
1
1
1
AK64  
AK66  
AK56  
AK61  
AK56  
AK56  
A37  
A39  
A36  
A38  
A36  
A38  
036  
(3.0)  
048  
(4.0)  
060  
(5.0)  
TABLE 29: STATIC RESISTANCES  
Resistance, IWG  
CFM  
Description  
1000  
1200  
0.08  
0.05  
0.07  
0.07  
1400  
0.09  
1600  
0.11  
0.07  
0.09  
0.09  
1800  
0.13  
0.08  
0.11  
0.10  
2000  
0.15  
0.10  
0.13  
0.11  
2200  
0.17  
0.12  
0.15  
0.12  
2400  
0.20  
0.14  
0.17  
0.14  
2600  
2800  
0.26  
0.19  
0.23  
0.19  
3000  
0.30  
0.22  
0.26  
0.22  
Economizer1 2  
0.07  
0.04  
0.06  
0.06  
0.23  
0.16  
0.20  
0.16  
7 - 15 kW  
0.06  
0.08  
0.08  
Electric  
Heaters1  
20 - 30 kW  
Bottom Duct Connections1  
1. Deduct these resistance values from the available external static pressure shown in SUPPLY AIR BLOWER PERFORMANCE Tables.  
2. The pressure through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air  
duct system is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation.  
Johnson Controls Unitary Products  
27  
 
         
364985-XIM-B-0508  
Drive Selection  
1. Determine desired airflow.  
2. Calculate or measure the amount of external static pressure.  
3. Using the operating point determined from steps 1 & 2, locate this point on the appropriate supply air blower performance table. (Linear  
interpolation may be necessary.)  
4. Noting the RPM and BHP from step 3, locate the appropriate model and drive on the RPM selection table.  
5. Review the BHP compared to the motor options available. Select the appropriate motor.  
6. Review the RPM range for the motor options available. Select the appropriate drive if multiple drives are available for the chosen motor.  
7. Determine turns open to obtain the desired operation point.  
Example  
1. 19000 CFM  
2. 5.4 iwg  
3. Using the supply air blower performance table below, the following data point was located: 1150 RPM & 36 BHP.  
4. Using the RPM selection table below, Size X and Model Y is found.  
5. 36 BHP exceeds the maximum continuous BHP rating of the 30 HP motor. The 40 HP motor is required.  
6. 1150 RPM is within the range of the 30 & 40 HP drives, but step 5 requires the 40 HP motor.  
7. Using the 40 HP motor and drive, 5.5 turns open will achieve 1150 RPM.  
Example Supply Air Blower Performance  
Available External Static Pressure - IWG  
4.2 4.6 5.0 5.4  
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP  
Air  
Flow  
(CFM)  
3.0  
3.4  
3.8  
5.8  
6.2  
6.6  
30 HP & Field Supplied Drive  
Standard 30 HP & Drive  
Alternate 40 HP & Drive  
18000 800 10.00 850 14.00 900 18.00 950 22.00 1000 26.00 1050 30.00 1100 34.00 1150 38.00 1200 42.00 1250 46.00  
19000 850 12.00 900 16.00 950 20.00 1000 24.00 1050 28.00 1100 32.00 1150 36.00 1200 40.00 1250 44.00 1300 48.00  
20000 900 14.00 950 18.00 1000 22.00 1050 26.00 1100 30.00 1150 34.00 1200 38.00 1250 42.00 1300 46.00 1350 50.00  
21000 950 16.00 1000 20.00 1050 24.00 1100 28.00 1150 32.00 1200 36.00 1250 40.00 1300 44.00 1350 48.00 1400 52.00  
Table X: RPM Selection  
Size  
(Tons)  
Max  
BHP  
Motor  
Sheave Sheave  
Blower 6 Turns 5 Turns 4 Turns 3 Turns 2 Turns  
1 Turn  
Open  
Fully  
Closed  
Model  
HP  
Open  
Open  
Open  
Open  
Open  
30  
40  
34.50  
46.00  
1VL51  
1VL63  
BK99  
BK67  
1000  
1025  
1045  
1060  
1110  
1150  
1475  
N/A  
N/A  
X
Y
1125  
1175  
1250  
1325  
1400  
28  
Johnson Controls Unitary Products  
 
364985-XIM-B-0508  
Altitude/Temperature Correction Factors  
Air  
Altitude (Ft.)  
5000  
Temp.  
40  
0
1000  
1.022  
1.002  
0.982  
0.964  
0.947  
0.929  
0.912  
2000  
0.986  
0.966  
0.948  
0.930  
0.913  
0.897  
0.880  
3000  
0.950  
0.931  
0.913  
0.896  
0.880  
0.864  
0.848  
4000  
0.916  
0.898  
0.880  
0.864  
0.848  
0.833  
0.817  
6000  
0.849  
0.832  
0.816  
0.801  
0.787  
0.772  
0.758  
7000  
0.818  
0.802  
0.787  
0.772  
0.758  
0.744  
0.730  
8000  
0.788  
0.772  
0.757  
0.743  
0.730  
0.716  
0.703  
9000  
0.758  
0.743  
0.729  
0.715  
0.702  
0.689  
0.676  
10000  
0.729  
0.715  
0.701  
0.688  
0.676  
0.663  
0.651  
1.060  
1.039  
1.019  
1.000  
0.982  
0.964  
0.946  
0.882  
0.864  
0.848  
0.832  
0.817  
0.802  
0.787  
50  
60  
70  
80  
90  
100  
1.100  
1.050  
1.000  
0.950  
0.900  
0.850  
0.800  
0.750  
0.700  
0.650  
0.600  
Sea Level  
1000 ft  
2000 ft  
3000 ft  
4000 ft  
5000 ft  
6000 ft  
7000 ft  
8000 ft  
9000 ft  
10000 ft  
40  
50  
60  
70  
80  
90  
100  
Air Temperature (ºF)  
Johnson Controls Unitary Products  
29  
 
364985-XIM-B-0508  
PHASING  
Check for proper compressor rotation. If the blower or  
compressors rotate in the wrong direction at start-up,  
the electrical connection to the unit is misphased.  
Change the incoming line connection phasing to obtain  
proper rotation. (Scroll compressors operate in only  
one direction. If the scroll is drawing low amperage,  
has similar suction and discharge pressures, or pro-  
ducing a high noise level, the scroll is misphased).  
Scroll compressors require proper rotation to  
operate correctly. Do not change the internal  
wiring to make the blower, condenser fans, or  
compressor rotate correctly. Change the  
incoming power to the main terminal block to  
obtain proper rotation.  
SUPPLY AIR BLOWERS  
FIGURE 12 - BELT ADJUSTMENT  
These blowers have either 3-speed direct drive motors,  
or single speed motors equipped with a belt drive. Belt  
drive units have a variable pitch motor pulley that  
allows the blower speed to be adjusted.  
Start the supply air blower motor. Adjust the resis-  
tances in both the supply and the return air duct sys-  
tems to balance the air distribution throughout the  
conditioned space. The job specifications may require  
that this balancing be done by someone other than the  
equipment installer.  
CHECKING SUPPLY AIR CFM  
The RPM of the supply air blower will depend on the  
required CFM, the unit accessories or options and the  
static resistances of both the supply and the return air  
duct systems. With this information, the motor speed  
tap (direct drive) or the motor pulley number of turns  
open (belt drive) can be determined from the Blower  
Performance Data Tables.  
To check the supply air CFM after the initial balancing  
has been completed:  
1. Remove the two 5/16” dot plugs from the blower  
motor and the filter access panels shown in Figure  
11.  
2. Insert at least 8" of 1/4 inch tubing into each of  
these holes for sufficient penetration into the air  
flow on both sides of the indoor coil.  
Note the following:  
1. The supply air CFM must be within the limitations  
shown in the Unit Application Data Table 1.  
NOTE: The tubes must be inserted and held in a posi-  
tion perpendicular to the air flow so that veloc-  
ity pressure will not affect the static pressure  
readings.  
2. Pulleys can be adjusted in half turn increments.  
3. The tension on the belt should be adjusted as  
shown in the Belt Adjustment Figure 12.  
3. Using an inclined manometer, determine the pres-  
sure drop across a dry evaporator coil. Since the  
moisture on an evaporator coil may vary greatly,  
measuring the pressure drop across a wet coil  
30  
Johnson Controls Unitary Products  
 
       
364985-XIM-B-0508  
under field conditions would be inaccurate. To  
assure a dry coil, the compressors should be deac-  
tivated while the test is being run.  
For heating, the thermostat makes a circuit between  
“R” and “W1”. The UCB energizes the compressor and  
condenser fan allowing the unit to run in heating mode.  
A time / temperature control operates the defrost cycle.  
4. Knowing the pressure drop across a dry coil, the  
actual CFM through the unit can be determined  
from the curve in Pressure Drop vs. Supply Air  
CFM (Figure 13).  
If at any time a call for both heating and cooling are  
present, the heating operation will be performed. If  
operating, the cooling system is halted as with a com-  
pletion of a call for cooling. Heating always takes prior-  
ity.  
COOLING SEQUENCE OF OPERATION  
CONTINUOUS BLOWER  
Failure to properly adjust the total system air  
quantity and static pressure can result in  
extensive system damage.  
By setting the room thermostat fan switch to “ON,” the  
supply air blower will operate continuously.  
After readings have been obtained, remove the tubes  
and reinstall the two 5/16” dot plugs that were removed  
in Step 1.  
INTERMITTENT BLOWER  
With the room thermostat fan switch set to “AUTO” and  
the system switch set to either the “AUTO” or “HEAT”  
settings, the blower is energized whenever a cooling or  
heating operation is requested. The blower is ener-  
gized after any specified delay associated with the  
operation.  
NOTE: De-energize the compressors before taking  
any test measurements to assure a dry indoor  
coil.  
0.5  
When energized, the indoor blower has a minimum run  
time of 30 seconds. Additionally, the indoor blower has  
a delay of 10 seconds between operations.  
060  
048  
036  
0.4  
0.3  
0.2  
0.1  
0
NO OUTDOOR AIR OPTIONS  
When the thermostat calls for cooling, the low-voltage  
control circuit from “R” to “Y1” and “G” is completed.  
The compressor and condenser fan motor are ener-  
gized. After completing the specified fan on delay for  
cooling, the UCB will energize the blower motor.  
Once the thermostat has been satisfied, it will de-ener-  
gize Y1. If the compressor has satisfied its minimum  
run time, the compressor and condenser fan de-ener-  
gize. Otherwise, the unit operates the cooling system  
until the minimum run time for the compressor has  
been completed. After the compressor de-energizes,  
the blower is stopped following the elapse of the fan off  
delay for cooling.  
1000  
1500  
2000  
2500  
3000  
FIGURE 13 - PRESSURE DROP ACROSS COIL  
OPERATION  
SEQUENCE OF OPERATIONS OVERVIEW  
For these units, the thermostat makes a circuit  
between “R” and “Y1” for the cooling cycle.  
To be available, a compressor must not be locked-out  
due to a high or low-pressure switch or freezestat trip  
and the anti-short cycle delay (ASCD) must have  
elapsed.  
The call is passed to the unit control board (UCB),  
which then determines whether the requested opera-  
tion is available and, if so, which components to ener-  
gize.  
Johnson Controls Unitary Products  
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364985-XIM-B-0508  
ECONOMIZER WITH SINGLE ENTHALPY SENSOR -  
open to a position set by the thumbwheel on the  
damper motor. When the “R” to “G” circuit is opened,  
the damper spring returns fully closed.  
When the room thermostat calls for cooling, the low  
voltage control circuit from “R” to “G” and “Y1” is com-  
pleted. The UCB energizes the blower motor (if the fan  
switch on the room thermostat is set in the “AUTO”  
position) and drives the economizer dampers from fully  
closed to their minimum position. If the enthalpy of the  
outdoor air is below the setpoint of the enthalpy con-  
troller (previously determined), “Y1” energizes the  
economizer. The dampers will modulate to maintain a  
constant supply air temperature as monitored by the  
discharge air sensor. If the outdoor air enthalpy is  
above the setpoint, “Y1” energizes the compressor and  
condenser fan motor only.  
COOLING OPERATION ERRORS  
Each cooling system is monitored for operation outside  
of the intended parameters. Errors are handled as  
described below. All system errors override minimum  
run times for compressors.  
HIGH-PRESSURE LIMIT SWITCH  
During cooling operation, if a high-pressure limit switch  
opens, the UCB will de-energize the compressor, initi-  
ate the ASCD (Anti-short cycle delay), and, stop the  
condenser fan. If the call for cooling is still present at  
the conclusion of the ASCD, the UCB will re-energize  
the compressor.  
Once the thermostat has been satisfied, it will de-ener-  
gize “Y1”. If the compressor has satisfied its minimum  
run time, the compressor and condenser fan are de-  
energized. Otherwise, the unit operates the cooling  
system until the minimum run times for the compressor  
has been completed. After the compressor de-ener-  
gizes, the blower is stopped following the elapse of the  
fan off delay for cooling, and the economizer damper  
goes to the closed position. If the unit is in continues  
fan operation the economizer damper goes to the min.  
position.  
Should a high-pressure switch open three times within  
two hours of operation, the UCB will lock-out the com-  
pressor and flash a code (see Table 32).  
LOW-PRESSURE LIMIT SWITCH  
The low-pressure limit switch is not monitored during  
the initial 30 seconds of a cooling system's operation.  
For the following 30 seconds, the UCB will monitor the  
low-pressure switch to ensure it closes. If the low-pres-  
sure switch fails to close after the 30-second monitor-  
ing phase, the UCB will de-energize the compressor,  
initiate the ASCD, and stop the condenser fan.  
ECONOMIZER WITH DUAL ENTHALPY SENSORS -  
The operation with the dual enthalpy sensors is identi-  
cal to the single sensor except that a second enthalpy  
sensor is mounted in the return air. This return air sen-  
sor allows the economizer to choose between outdoor  
air and return air, whichever has the lowest enthalpy  
value, to provide maximum operating efficiency.  
Once the low-pressure switch has been proven (closed  
during the 30-second monitor period described above),  
the UCB will monitor the low-pressure limit switch for  
any openings. If the low-pressure switch opens for  
greater than 5 seconds, the UCB will de-energize the  
compressor, initiate the ASCD, and stop the condenser  
fan.  
ECONOMIZER (SINGLE OR DUAL) WITH POWER  
EXHAUST -  
This system operates as specified above with one  
addition. The power exhaust motor is energized 45  
seconds after the actuator position exceeds the  
exhaust fan setpoint on the economizer control. When  
the power exhaust is operating, the second stage of  
mechanical cooling will not operate. As always, the “R”  
to “G” connection provides minimum position but does  
not provide power exhaust operation.  
If the call for cooling is still present at the conclusion of  
the ASCD, the UCB will re-energize the compressor.  
Should a low-pressure switch open three times within  
one hour of operation, the UCB will lock-out the com-  
pressor and flash a code (see Table 32).  
MOTORIZED OUTDOOR AIR DAMPERS -  
FREEZESTAT  
This system operation is the same as the units with no  
outdoor air options with one exception. When the “R” to  
“G” circuit is complete, the motorized damper drives  
During cooling operation, if a freezestat opens, the  
UCB will de-energize the compressor, initiate the  
ASCD, and stop the condenser fan. If the call for cool-  
32  
Johnson Controls Unitary Products  
 
               
364985-XIM-B-0508  
ing is still present at the conclusion of the ASCD, the  
UCB will re-energize the compressor.  
trolled. On any fault, the system will be affected by any  
safety/preventive action.  
Should a freezestat open three times within two hours  
of operation, the UCB will lock-out the compressor and  
flash a code (see Table 32).  
The unit control board monitors the temperature limit  
switch of the electric heat.  
COMPRESSOR PROTECTION  
LOW AMBIENT COOLING  
The compressor also has inherent (internal) protection.  
If there is an abnormal temperature rise in a compres-  
sor, the protector will open to shut down the compres-  
sor. The UCB incorporates features to minimize  
compressor wear and damage. An anti-short cycle  
delay (ASCD) is utilized to prevent operation of a com-  
pressor too soon after its previous run. Additionally, a  
minimum run time is imposed any time a compressor is  
energized.  
To determine when to operate in low ambient mode,  
the UCB has a pair of terminals connected to a temper-  
ature-activated switch set at 45ºF. When the low ambi-  
ent switch is closed and the thermostat is calling for  
cooling, the UCB will operate in the low ambient mode.  
Low ambient mode operates the compressors in this  
manner: 10 minutes on, 5 minutes off. The indoor  
blower is operated throughout the cycle. The 5-minute  
off period is necessary to defrost the indoor coil.  
The ASCD is initiated on unit start-up and on any com-  
pressor reset or lock-out.  
Low ambient mode always begins with compressor  
operation. Compressor minimum run time may extend  
the minutes of compressor operation. The defrost cycle  
will begin immediately following the elapse of the mini-  
mum run time.  
FLASH CODES  
The UCB will initiate a flash code associated with  
errors within the system. Refer to UNIT CONTROL  
BOARD FLASH CODES Table 32.  
When operating in low ambient mode, the UCB will not  
lockout the compressor due to a freezestat trip. How-  
ever, a freezestat trip will de-energize the compressor.  
If the call for cooling is still present at the end of the  
ASCD and the freezestat has closed, the unit will  
resume operation.  
RESET  
Remove the call for cooling, by raising thermostat set-  
ting higher than the conditioned space temperature.  
This resets any pressure or freezestat flash codes.  
SAFETY CONTROLS  
HEATING SEQUENCE OF OPERATIONS  
WITH OR WITHOUT ELECTRIC HEAT  
The unit control board monitors the following inputs for  
the cooling system:  
When the thermostat calls for the first stage of heating,  
the low voltage control circuit is completed between “R”  
and “W1”. The 24vac signal is passed through the  
UCB to the “Y” contact on the Defrost Control (DC)  
assuring the reversing valve cannot be energized,  
except during defrost. If the ASCD timer is satisfied the  
UCB will energize compressor contactor M1.  
1. A suction line freezestat to protect against low  
evaporator temperatures due to a low airflow or a  
low return air temperature, (opens at 26 ± 5 °F and  
resets at 38 ± 5°F).  
2. A high-pressure switch to protect against exces-  
sive discharge pressures due to a blocked con-  
denser coil or a condenser motor failure, (opens at  
380 ± 10 psig and resets at 300 ± 10 psig).  
If the compressor alone cannot satisfy the heating  
requirements, a second stage call from the thermostat  
completes the circuit between “R” and “W2”. This  
24vac signal is passed through the UCB to the electric  
heat section (if available). The total available kW of  
electric heat will be energized on a call for “W2”.  
3. A low-pressure switch to protect against loss of  
refrigerant charge, (opens at 7 ± 3 psig and resets  
at 22 ± 5 psig).  
The above pressure switches are hard-soldered to the  
unit. The refrigeration system is monitored and con-  
Johnson Controls Unitary Products  
33  
 
             
364985-XIM-B-0508  
DEFROST MODE  
SAFETY CONTROLS  
As mentioned earlier, the defrost control (DC) utilizes a  
time/temperature defrost scheme. The following two  
conditions must be met before the DC will enter a  
defrost mode:  
The control circuit includes the following safety con-  
trols:  
1. Temperature Limit Switch (TLS) - This control is  
located inside the heater compartment and is set to  
open at the temperature indicated in the Electric  
Heat Limit Control Setting Table 30. It resets auto-  
matically. The limit switch operates when a high  
temperature condition, caused by inadequate sup-  
ply air flow occurs, thus shutting down the heater  
and energizing the blower.  
The defrost thermostat (SD) must be closed. This nor-  
mally open thermostat is mounted on the liquid line and  
is set to close at 28 ± 4°F.  
Once the defrost thermostat closes, the defrost control  
starts a run timer that must be satisfied before defrost  
can begin. This is accumulated compressor run time.  
The selection pin is factory set at 60 minutes, but is  
field adjustable to 30, 60 or 90 minutes.  
TABLE 30: ELECTRIC HEAT LIMIT CONTROL  
SETTING  
When the DC enters the defrost mode, it’s on-board  
defrost relay is powered. This energizes the reversing  
valve, de-energizes the condenser fan motor and ener-  
gizes the unit’s optional electric heater. The DC  
remains in defrost mode until either of the following two  
conditions is met:  
ºF  
VOLTAGE  
kW  
TEMPERATURE LIMIT SWITCH  
Open Temp  
5
7
1
1,3  
140  
140  
140  
140  
140  
150  
150  
140  
140  
150  
140  
150  
160  
150  
140  
140  
140  
160  
150  
140  
140  
160  
150  
10  
15  
1,2,3  
2,4,6  
1,2,3,4,5  
6
230-1-60  
1. The liquid line thermostat is open. It is set to open  
at 55 ± 4°F.  
20  
30  
5
1,2,3,4,5,6  
1,2,3  
1,2,3  
1,2,3  
2,4,6  
1,2,3,4,5,6  
1,3,5  
2,4,6  
2,4,6  
2,4,6  
2,4,6  
3
2. The maximum defrost run time of 10 minutes is  
met.  
7
10  
15  
20  
230-3-60  
FORCED DEFROST  
The processor on the defrost board is only energized  
when the defrost sensor (DS) is closed.  
30  
7
To create a forced defrost:  
10  
15  
20  
30  
10  
15  
20  
30  
1. The DS must either be closed or a jumper must be  
placed across the DFS terminals on the board.  
460-3-60  
575-3-60  
3
2. Place a jumper across the test pin terminals on the  
board.  
2,4,6  
2,4,6  
5
Depending on the selected defrost minimum run  
time of 30, 60 or 90 minutes, the board will go into  
defrost in 7.5, 15 or 22.5 seconds.  
5
The DC will remain in defrost until the jumpers  
across the DS and the test pin terminals are  
removed.  
HEAT ANTICIPATOR SETPOINTS  
It is important that the anticipator setpoint be correct.  
Too high of a setting will result in longer heat cycles  
and a greater temperature swing in the conditioned  
space. Reducing the value below the correct setpoint  
will give shorter “ON” cycles and may result in the low-  
ering of the temperature within the conditioned space.  
Once the jumpers are removed, the board then ter-  
minates defrost when the DS opens or a maximum  
of 10 minutes after the test pin jumper is removed,  
whichever comes first.  
34  
Johnson Controls Unitary Products  
 
         
364985-XIM-B-0508  
Refer to Table 31 for the required electric heat anticipa-  
tor setting.  
3. Compressor will energize after the built-in time  
delay (five minutes).  
POST START CHECK LIST  
TABLE 31: ELECTRIC HEAT ANTICIPATOR  
SETPOINTS  
1. Verify proper system pressures.  
SETTING, AMPS  
HEATER  
KW  
VOLTAGE  
2. Measure the temperature drop across the evapora-  
tor coil.  
TH1  
TH2  
0.35  
0.35  
0.35  
0.35  
0.35  
0.35  
0.35  
0.35  
0.35  
0.37  
0.37  
0.35  
0.35  
0.37  
0.37  
5
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
0.024  
3. Measure the system Amperage draw across all  
legs of 3 phase power wires.  
7
10  
15  
20  
30  
7
230-3-60  
4. Measure the condenser fan amp draw.  
SHUT DOWN  
1. Set the thermostat to highest temperature setting.  
2. Turn off the electrical power to the unit.  
10  
15  
20  
30  
10  
15  
20  
30  
460-3-60  
575-3-60  
TROUBLESHOOTING  
COOLING TROUBLESHOOTING GUIDE  
START-UP (COOLING)  
Troubleshooting of components may require  
opening the electrical control box with the power  
connected to the unit. Use extreme care when  
working with live circuits! Check the unit  
nameplate for the correct line voltage and set  
the voltmeter to the correct range before making  
any connections with line terminals.  
PRESTART CHECK LIST  
After installation has been completed:  
1. Check the electrical supply voltage being supplied.  
Be sure that it is the same as listed on the unit  
nameplate.  
2. Set the room thermostat to the off position.  
3. Turn unit electrical power on.  
When not necessary, shut off all electric power to  
the unit prior to any of the following maintenance  
procedures so as to prevent personal injury.  
4. Set the room thermostat fan switch to on.  
5. Check indoor blower rotation.  
If blower rotation is in the wrong direction.  
Refer to Phasing Section in general informa-  
tion section.  
Label all wires prior to disconnection when ser-  
vicing controls. Wiring errors can cause improper  
and dangerous operation, which could cause  
injury to person and/or damage unit components.  
Verify proper operation after servicing.  
Check blower drive belt tension.  
6. Check the unit supply air (CFM). See “CHECKING  
SUPPLY AIR CFM” on page 30.  
On calls for cooling, if the compressors are operating  
but the supply air blower motor does not energize after  
a short delay (the room thermostat fan switch is in the  
“AUTO” position).  
7. Measure evaporator fan motor's amp draw.  
8. Set the room thermostat fan switch to off.  
9. Turn unit electrical power off.  
1. Turn the thermostat fan switch to the ON position.  
If the supply air blower motor does not energize, go  
to Step 3.  
OPERATING INSTRUCTIONS  
1. Turn unit electrical power on.  
2. Set the room thermostat setting to lower than the  
room temperature.  
2. If the blower motor runs with the fan switch in the  
ON position but will not run after the compressor  
Johnson Controls Unitary Products  
35  
 
               
364985-XIM-B-0508  
has energized when the fan switch is in the AUTO  
position, check the room thermostat for contact  
between R and G in the AUTO position during calls  
for cooling.  
providing free cooling and the compressors will not  
immediately operate. If both stages of cooling are  
requested simultaneously and the economizer pro-  
vides free cooling, following a short delay the com-  
pressor will be energized unless it is locked out,  
unless this option has been disabled through com-  
puter communications.  
3. If the supply air blower motor does not energize  
when the fan switch is set to ON, check that line  
voltage is being supplied to the contacts of the M2,  
contactor, and that the contactor is pulled in. Check  
for loose wiring between the contactor and the sup-  
ply air blower motor.  
2. If no economizer is installed or the economizer is not  
opening to provide free cooling and the compressor  
does not energize on a call for cooling, check for line  
voltage at the compressor contactor, M1, and that  
the contactor is pulled in. Check for loose wiring  
between the contactor and the compressor.  
4. If M2 is pulled in and voltage is supplied to M2,  
lightly touch the supply air blower motor housing. If  
it is hot, the motor may be off on internal protec-  
tion. Cancel any thermostat calls and set the fan  
switch to AUTO. Wait for the internal overload to  
reset. Test again when cool.  
3. If M1 is pulled in and voltage is supplied at M1,  
lightly touch the compressor housing. If it is hot, the  
compressor may be off on inherent protection.  
Cancel any calls for cooling and wait for the inter-  
nal overload to reset. Test again when cool.  
5. If M2 is not pulled in, check for 24 volts at the M2  
coil. If 24 volts are present at M2 but M2 is not  
pulled in, replace the contactor.  
4. If M1 is not pulled in, check for 24 volts at the M1  
coil. If 24 volts are present and M1 is not pulled in,  
replace the contactor.  
6. Failing the above, if there is line voltage supplied at  
M2, M2 is pulled in, and the supply air blower  
motor still does not operate, replace the motor.  
5. Failing the above, if voltage is supplied at M1, M1  
is pulled in, and the compressor still does not oper-  
ate, replace the compressor.  
7. If 24 volts is not present at M2, check that 24 volts  
is present at the UCB supply air blower motor ter-  
minal, “FAN”. If 24 volts is present at the FAN,  
check for loose wiring between the UCB and M2.  
6. If 24 volts is not present at M1, check for 24 volts at  
the UCB terminal, C1. If 24 volts is present, check  
for loose wiring between C1 and the compressor  
contactor.  
8. If 24 volts is not present at the “FAN” terminal,  
check for 24 volts from the room thermostat. If 24  
volts are not present from the room thermostat,  
check for the following:  
7. If 24 volts is not present at the C1 terminal, check  
for 24 volts from the room thermostat at the UCB  
Y1 terminal. If 24 volts is not present from the room  
thermostat, check for the following:  
a. Proper operation of the room thermostat (contact  
between R and G with the fan switch in the ON posi-  
tion and in the AUTO position during operation calls).  
a. 24 volts at the thermostat Y1 terminal  
b. Proper wiring between the room thermostat and the  
UCB, i.e. Y1 to Y1, Y2 to Y2  
b. Proper wiring between the room thermostat and the  
UCB.  
c. Loose wiring from the room thermostat to the UCB.  
c. Loose wiring from the room thermostat to the UCB.  
8. If 24 volts is present at the UCB Y1 terminal, the  
compressor may be out due to an open high-pres-  
sure switch, low-pressure switch, or freezestat.  
Check for 24 volts at the HPS1, LPS1, and FS1  
terminals of the UCB. If a switch has opened, there  
should be a voltage potential between the UCB ter-  
minals, e.g. if LPS1 has opened, there will be a 24-  
volt potential between the LPS1 terminals.  
9. If 24 volts is present at the room thermostat but not  
at the UCB, check for proper wiring between the  
thermostat and the UCB, i.e. that the thermostat G  
terminal is connected to the G terminal of the UCB,  
and for loose wiring.  
10. If the thermostat and UCB are properly wired,  
replace the UCB.  
9. If 24 volts is present at the UCB Y1 terminal and none  
of the protection switches have opened, the UCB  
may have locked out the compressor for repeat trips.  
The UCB should be flashing an alarm code. If not,  
press and release the ALARMS button on the UCB.  
On a call for cooling, the supply air blower motor is  
operating but the compressor is not (the room thermo-  
stat fan switch is in the “AUTO” position).  
1. If installed, check the position of the economizer  
blades. If the blades are open, the economizer is  
36  
Johnson Controls Unitary Products  
 
364985-XIM-B-0508  
The UCB will flash the last five alarms on the LED. If  
the compressor is locked out, cancel any call for cool-  
ing. This will reset any compressor lock outs.  
For units with factory installed economizers, the  
UCB is programmed to lock out compressor opera-  
tion when the LAS set point is reached.  
For units without factory installed or with field  
installed economizers, the UCB allows compressor  
operation all the time. This programming can be  
checked or changed by the local distributor.  
NOTE: While the above step will reset any lockouts,  
the compressor may be held off for the ASCD.  
See the next step.  
10. If 24 volts is present at the UCB Y1 terminal and  
none of the switches are open and the compressor  
is not locked out, the UCB may have the compres-  
sor in an ASCD. Check the LED for an indication of  
an ASCD cycle. The ASCD should time out within  
5 minutes. Press and release the TEST button to  
reset all ASCDs.  
15. If none of the above correct the error, replace the  
UCB.  
UNIT FLASH CODES  
Various flash codes are utilized by the unit control  
board (UCB) to aid in troubleshooting. Flash codes are  
distinguished by the short on and off cycle used  
(approximately 200ms on and 200ms off). To show  
normal operation, the control board flashes a 1 second  
on, 1 second off “heartbeat” during normal operation.  
This is to verify that the UCB is functioning correctly.  
Do not confuse this with an error flash code. To prevent  
confusion, a 1-flash, flash code is not used.  
11. If 24 volts is present at the UCB Y1 terminal and the  
compressor is not out due to a protective switch trip,  
repeat trip lock out, or ASCD, the economizer termi-  
nals of the UCB may be improperly wired. Check for  
24 volts at the Y1 “OUT” terminal of the UCB. If 24  
volts is present, trace the wiring from Y1 “OUT” for  
incorrect wiring. If 24 volts is not present at the Y1  
“OUT” terminal, the UCB must be replaced.  
Current alarms are flashed on the UCB LED. Pressing  
and releasing the ALARMS button on the UCB can  
check the alarm history. The UCB will cycle through the  
last five (5) alarms, most recent to oldest, separating  
each alarm flash code by approximately 2 seconds.  
12. For units without economizers: If 24 volts is present  
at the Y1 OUT terminal, check for 24 volts at the  
Y1 “ECON” terminal. If 24 volts is not present,  
check for loose wiring from the Y1 “OUT” terminal  
to the Mate-N-Lock plug, the jumper in the Mate-N-  
Lock plug, and in the wiring from the Mate-N-Lock  
plug to the Y1 “ECON” terminal.  
In some cases, it may be necessary to “zero” the  
ASCD for the compressors in order to perform trouble-  
shooting. To reset all ASCDs for one cycle, press and  
release the UCB TEST button once.  
13. For units with economizers: If 24 volts is present at  
the Y1 “OUT” terminal, check for 24 volts at the Y1  
“ECON” terminal. If 24 volts is not present, check  
for loose wiring from the Y1 “OUT” terminal to the  
Mate-N-Lock plug, a poor connection between the  
UCB and economizer Mate-N-Lock plugs, loose  
wiring from the Mate-N-Lock plug to the econo-  
mizer, back to the Mate-N-Lock plug, and from the  
Mate-N-Lock plug to the Y1 “ECON” terminal. If  
nothing is found, the economizer actuator may  
have faulted and is failing to return the 24-volt “call”  
to the Y1 “ECON” terminal even though the econo-  
mizer is not providing free cooling. To test, discon-  
nect the Mate-N-Locks and jumper between the  
WHITE and YELLOW wires of the UCB’s Mate-N-  
Lock plug. If the compressor energizes, there is a  
fault in the economizer wiring or actuator.  
TABLE 32: UNIT CONTROL BOARD FLASH CODES  
Flash Code  
On Steady  
Heart Beat  
1 Flash  
Description  
Control Failure - Replace Control  
Normal Operation  
Not Applicable  
1
2 Flashes  
3 Flashes  
5 Flashes  
7 Flashes  
Control waiting ASCD  
HPS1 - Compressor Lock out  
LPS1 - Compressor Lock out  
FS1 - Compressor Lock out  
Ignition Control Locked Out/  
9 Flashes  
Ignition Control Failure / Limit Switch Trip /  
No Jumper Plug in Heat Section  
Compressors Locked Out On Low  
10 Flashes  
11 Flashes  
Outdoor Air Temperature  
Compressors Locked Out Because the  
Economizer Is Using Free Cooling  
14. The UCB can be programmed to lock out compres-  
sor operation during free cooling and in low ambi-  
ent conditions. These options are not enabled by  
default. Local distributors can test the UCB for this  
programming.  
13 Flashes  
14 Flashes  
OFF  
Compressor Held Off Due To Low Voltage  
EEPROM Storage Failure (Control Failure)  
No Power or Control Failure  
1. These flash codes do not represent alarms.  
Johnson Controls Unitary Products  
37  
 
     
364985-XIM-B-0508  
MAINTENANCE  
NORMAL MAINTENANCE  
Perform all maintenance operations on the  
blower motor with electric power disconnected  
from the unit. Do not attempt to lubricate bear-  
ings with the unit in operation.  
Prior to any of the following maintenance pro-  
cedures, shut off all electric power to the unit to  
prevent personal injury.  
On an annual basis, check the motor for accumulations  
of dust, etc. that may block the cooling slots in the  
motor shell. Check for loose, damaged or misaligned  
drive components. Check that all mounting bolts are  
tight. Replace defective parts as required.  
FILTERS  
Inspect once a month. Replace disposable or clean  
permanent type as necessary. DO NOT replace per-  
manent type with disposable. The dimensional size of  
the replacement filter must be the same as the  
replaced filter.  
If desired, every three years remove both pipe plugs at  
each end shell and clean out any hardened grease or  
foreign matter. Replace one plug on each end with a  
clean grease fitting. Using a low pressure grease gun,  
pump grease (Chevron SRI-2 or equivalent) into the  
bearing cavity until new grease shows at the open port.  
Do not over lubricate. Run the motor for ten minutes  
until excess grease is purged from the cavity. Replace  
the plugs.  
MOTORS  
Outdoor fan motors are permanently lubricated and  
require no maintenance.  
Indoor Blower Motor and Drive - The indoor blower  
motor features ball bearings that do not require  
periodic lubrication. Periodic lubrication of the motor  
and bearings can extend the life of components but is  
optional.  
15 ton units are supplied with blower shaft bearings  
that do not require maintenance but may be lubricated  
if desired. Every three years, using a low pressure  
grease gun, pump grease into the bearing grease fit-  
ting until grease just begins to show at the seals. Do  
not over lubricate. Use any lithium base grease recom-  
mended for ball bearing service.  
OUTDOOR COIL  
Damage can occur if the bearings are overlu-  
bricated. Use grease sparingly.  
Dirt should not be allowed to accumulate on the out-  
door coil surface or other parts in the air circuit. Clean-  
ing should be as often as necessary to keep coil clean.  
Use a brush, vacuum cleaner attachment, or other suit-  
able means. If water is used to clean coil, be sure elec-  
tric power to the unit is shut off prior to cleaning.  
NOTE: Exercise care when cleaning the coil so that  
the coil fins are not damaged.  
38  
Johnson Controls Unitary Products  
 
         
364985-XIM-B-0508  
Johnson Controls Unitary Products  
39  
 
Subject to change without notice. Printed in U.S.A.  
364985-XIM-B-0508  
Copyright © 2008 by Johnson Controls, Inc. All rights reserved.  
Supersedes: 364985-YIM-A-0308  
Johnson Controls Unitary Products  
5005 York Drive  
Norman, OK 73069  
 

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