INSTALLATION
SUNLINE 2000™
MANUAL
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . 4
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REFERENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . 4
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
START-UP (COOLING) . . . . . . . . . . . . . . . . . . . . 35
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . 35
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SINGLE PACKAGE HEAT PUMP
BQ 036, 048 & 060
EXPORT ONLY
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
clarify or make the installation easier. Cautions
to prevent equipment damage. Warnings
alert installer that personal injury and/or equipment damage may result if installation procedure is not handled
properly.
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
are intended to
are given
are given to
ISO 9001
Certified Quality
Management System
SAVE THIS MANUAL
364985-XIM-B-0508
TABLE OF CONTENTS
364985-XIM-B-0508
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . 4
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . 4
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION SAFETY INFORMATION: . . . . . . . . 6
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RIGGING AND HANDLING . . . . . . . . . . . . . . . . . . . . 7
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
CONDENSATE DRAIN . . . . . . . . . . . . . . . . . . . . . . . . 7
COMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SERVICE ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . 8
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
POWER AND CONTROL WIRING . . . . . . . . . . . . . . 10
OPTIONS/ACCESSORIES . . . . . . . . . . . . . . . . . . . . 10
ELECTRIC HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
ECONOMIZER/MOTORIZED DAMPER AND
RAIN HOOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
POWER EXHAUST/BAROMETRIC RELIEF
DAMPER AND RAIN HOOD . . . . . . . . . . . . . . . . . . .11
ECONOMIZER AND POWER EXHAUST DAMPER
SET POINT ADJUSTMENTS AND
INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
MINIMUM POSITION ADJUSTMENT . . . . . . . . . . . .12
ENTHALPY SET POINT ADJUSTMENT . . . . . . . . . .12
POWER EXHAUST DAMPER SETPOINT (WITH
OR WITHOUT POWER EXHAUST) . . . . . . . . . . . . .12
INDOOR AIR QUALITY . . . . . . . . . . . . . . . . . . . . . . .1 2
PHASING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SUPPLY AIR BLOWERS . . . . . . . . . . . . . . . . . . . . . 30
CHECKING SUPPLY AIR CFM . . . . . . . . . . . . . . . . 30
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SEQUENCE OF OPERATIONS OVERVIEW . . . . . . 31
COOLING SEQUENCE OF OPERATION . . . . . . . . 31
CONTINUOUS BLOWER . . . . . . . . . . . . . . . . . . . . . . 31
INTERMITTENT BLOWER . . . . . . . . . . . . . . . . . . . . 31
NO OUTDOOR AIR OPTIONS . . . . . . . . . . . . . . . . . 31
ECONOMIZER WITH SINGLE ENTHALPY
SENSOR - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
ECONOMIZER WITH DUAL ENTHALPY
SENSORS - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
ECONOMIZER (SINGLE OR DUAL) WITH POWER
EXHAUST - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
MOTORIZED OUTDOOR AIR DAMPERS - . . . . . . . 32
COOLING OPERATION ERRORS . . . . . . . . . . . . . 32
HIGH-PRESSURE LIMIT SWITCH . . . . . . . . . . . . . . 32
LOW-PRESSURE LIMIT SWITCH . . . . . . . . . . . . . . . 32
FREEZESTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
LOW AMBIENT COOLING . . . . . . . . . . . . . . . . . . . . . 33
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . 33
COMPRESSOR PROTECTION . . . . . . . . . . . . . . . 33
FLASH CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
HEATING SEQUENCE OF OPERATIONS . . . . . . . 33
WITH OR WITHOUT ELECTRIC HEAT . . . . . . . . . . . 33
DEFROST MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
FORCED DEFROST . . . . . . . . . . . . . . . . . . . . . . . . . 34
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . 34
HEAT ANTICIPATOR SETPOINTS . . . . . . . . . . . . . 34
START-UP (COOLING) . . . . . . . . . . . . . . . . . . . . . 35
PRESTART CHECK LIST . . . . . . . . . . . . . . . . . . . . 35
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . 35
POST START CHECK LIST . . . . . . . . . . . . . . . . . . 35
SHUT DOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 35
COOLING TROUBLESHOOTING GUIDE . . . . . . . . 35
UNIT FLASH CODES . . . . . . . . . . . . . . . . . . . . . . . 37
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
NORMAL MAINTENANCE . . . . . . . . . . . . . . . . . . . 38
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
MOTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
OUTDOOR COIL . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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LIST OF FIGURES
Fig. # Pg. #
1 RECOMMENDED DRAIN PIPING . . . . . . . . . . . . . . . . 7
2 COMPRESSOR RESTRAINING BRACKET . . . . . . . . 8
3 TYPICAL FIELD POWER & CONTROL WIRING . . . . 9
4 ENTHALPY SETPOINT ADJUSTMENT . . . . . . . . . . 13
5 HONEYWELL ECONOMIZER CONTROL W7212 . . . 13
6 FOUR AND SIX POINT LOADING . . . . . . . . . . . . . . . 14
7 UNIT DIMENSIONS (3 - 5 TON HEAT PUMP)
FRONT VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8 UNIT WITH ECONOMIZER RAINHOOD . . . . . . . . . . 23
9 UNIT WITH FIXED OUTDOOR AIR/MOTORIZED
DAMPER RAINHOOD . . . . . . . . . . . . . . . . . . . . . . . . 23
10 UNIT DIMENSIONS (REAR VIEW) . . . . . . . . . . . . . . 24
11 DISCONNECT/BLOWER ACCESS LOCATION . . . . 24
12 BELT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . 30
13 PRESSURE DROP ACROSS COIL . . . . . . . . . . . . . . 31
LIST OF TABLES
Tbl. # Pg. #
1 UNIT APPLICATION DATA (BQ) . . . . . . . . . . . . . . . . . 6
2 CONTROL WIRE SIZES . . . . . . . . . . . . . . . . . . . . . . 10
3 ELECTRIC HEATER CFM LIMITATIONS . . . . . . . . . 11
4 CENTER OF GRAVITY (ALL MODELS) . . . . . . . . . . 14
5 BQ 4 POINT LOADS WEIGHT DISTRIBUTION . . . . 14
6 BQ 6 POINT LOADS WEIGHT DISTRIBUTION . . . . 14
7 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 OPERATING WEIGHTS (LBS.) . . . . . . . . . . . . . . . . . 15
9 ELECTRICAL DATA - BQ036-060 DIRECT DRIVE
W/O POWERED CONVENIENCE OUTLET . . . . . . . 16
10 ELECTRICAL DATA - BQ036-060 BELT DRIVE
W/O POWERED CONVENIENCE OUTLET . . . . . . . 17
11 ELECTRICAL DATA - BQ036-060 BELT DRIVE
HIGH STATIC W/O POWERED CONVENIENCE
OUTLET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Tbl. #
12 ELECTRICAL DATA - BQ036-060 DIRECT DRIVE
W/POWERED CONVENIENCE OUTLET . . . . . . . . . 19
13 ELECTRICAL DATA - BQ036-060 BELT DRIVE
W/POWERED CONVENIENCE OUTLET . . . . . . . . . 20
14 ELECTRICAL DATA - BQ036-060 BELT DRIVE
HIGH STATIC W/POWERED CONVENIENCE
OUTLET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
15 ELECTRIC HEAT CORRECTION FACTORS . . . . . . 22
16 VOLTAGE LIMITATIONS . . . . . . . . . . . . . . . . . . . . . 22
17 UTILITIES ENTRY . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
18 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . 24
19 SUPPLY AIR BLOWER PERFORMANCE (BQ036
BELT DRIVE) - SIDE DUCT APPLICATION . . . . . . . 25
20 SUPPLY AIR BLOWER PERFORMANCE (BQ036
BELT DRIVE) - BOTTOM DUCT APPLICATION . . . 25
21 SUPPLY AIR BLOWER PERFORMANCE (BQ048
BELT DRIVE) - SIDE DUCT APPLICATION . . . . . . . 25
22 SUPPLY AIR BLOWER PERFORMANCE (BQ048
BELT DRIVE) - BOTTOM DUCT APPLICATION . . . 25
23 SUPPLY AIR BLOWER PERFORMANCE (BQ060
BELT DRIVE) - SIDE DUCT APPLICATION . . . . . . . 26
24 SUPPLY AIR BLOWER PERFORMANCE (BQ060
BELT DRIVE) - BOTTOM DUCT APPLICATION . . . 26
25 SUPPLY AIR BLOWER PERFORMANCE (BQ036,
048 & 060 DIRECT DRIVE) - SIDE DUCT
APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
26 SUPPLY AIR BLOWER PERFORMANCE (BQ036,
048 & 060 DIRECT DRIVE) - BOTTOM DUCT
APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
27 BELT DRIVE RPM SELECTION . . . . . . . . . . . . . . . . 27
28 BELT DRIVE BLOWER MOTOR AND DRIVE
DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
29 STATIC RESISTANCES . . . . . . . . . . . . . . . . . . . . . . 27
30 ELECTRIC HEAT LIMIT CONTROL SETTING . . . . . 34
31 ELECTRIC HEAT ANTICIPATOR SETPOINTS . . . . 35
32 UNIT CONTROL BOARD FLASH CODES . . . . . . . . 37
Pg. #
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GENERAL
YORK Model BQ units are single package heat pumps
equipped with optional factory installed electric heaters. These are designed for outdoor installation on a
rooftop or slab.
The units are completely assembled on rigid, permanently attached base rails. All piping, refrigerant
charge, and electrical wiring is factory installed and
tested. The units require electric power, gas connection, duct connections, installation of combustion air
inlet hood, flue gas outlet hoods and fixed outdoor air
intake damper (units without ec onomizer or motorized
damper option only) at the point of installation.
The supplemental electric heaters have nickel-chrome
elements and utilize single point power connection.
SAFETY CONSIDERATIONS
Due to system pressure, moving parts and electrical
components, installation and servicing of air conditioning equipment can be hazardous. Only qualified,
trained, service personnel should install, repair, maintain or service this equipment.
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.
• 530.18-N1.14V -Man. Outdoor Air Damper Accy
0 - 100%
• 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
RENEWAL PARTS
Contact your local York® parts distribution center for
authorized replacement parts.
APPROVALS
Design listed by CSA as follows:
• For use as a heat pump only with or without
optional electric heat.
• 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.
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 carrier'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.
REFERENCE
Additional information on the design, installation, operation and service of this equipment is available in the
following reference forms:
• 364985 -General Installation
• 035-19404-000 -Economizer Accessory
• 530.18-N1.13V -Man. Outdoor Air Damper
Accessory 0 - 35%
This product must be installed in strict compliance with the enclosed installation instructions
and any applicable local, state, and national
codes including, but not limited to, building,
electrical, and mechanical codes.
Improper installation may create a condition
where the operation of the product could cause
personal injury or property damage.
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 damage may result if installation procedure is not handled properly.
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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
B = HP, Single Pkg., R-22
Product Identifier
Q = 10.0 SEER HP
Nominal Cooling Capacity
036 = 3.0 Ton
048 = 4.0 Ton
060 = 5.0 Ton
Heat Type and Nominal Heat Capacity
C00 = Cooling Only. Suitable for Field
Installed Electric Heat
Electric Heat Options
E05 = 5 KW
E07 = 7 KW
E10 = 10 KW
E15 = 15 KW
E20 = 20 KW
E30 = 30 KW
Airflow
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
U = Belt Drive High Static/Single Input Economizer
V = Belt Drive High Static/Motorized Damper
Voltage
2 = 208/230-3-60
4 = 460-3-60
5 = 575-3-60
Product Style
A = Style A
These four digits will not be assigned until a quote is requested, or an order placed.
SS Drain Pan
CPC Controller, DFS, APS
Johnson Controller, DFS, APS
Honeywell Controller, DFS, APS
Novar Controller, DFS, APS
Simplicity IntelliComfort Controller
Simplicity IntelliComfort Controller w/ModLinc
2" Pleated Filters
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
Product Generation
1 = First Generation
2 = Second Generation
Standard Cabinet
AA = None
AB = Phase Monitor
AC = Coil Guard
AD = Dirty Filter Switch
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
ZZ = If desired option combination is not listed above, ZZ will be assigned and configuration options will be
located in digits 15-18.
Configuration Options (not required for all units)
Additional Options
Hinged Filter Door & Toolless Access Cabinet
BA = Hinged Filter Door & Toolless Access Panels
BA = Hinged Filter Door & Toolless Access Panels
BA = Hinged Filter Door & Toolless Access Panels
BB = Phase Monitor, Hinged Filter Door & Toolless
Access Panels
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
BH = Phase Monitor, Coil Guard & Dirty Filter Switch,
Hinged Filter Door & Toolless Access Panels
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
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INSTALLATION
INSTALLATION SAFETY INFORMATION:
Read these instructions before continuing this appliance installation. This is an outdoor combination heating 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.
1. Install this unit only in a location and position as
specified on page 6 of these instructions.
2. This equipment is not to be used for temporary
heating of buildings or structures under construction.
LIMITATIONS
These units must be installed in accordance with the
following national and local safety codes:
In U.S.A
• National Electrical Code ANSI/NFPA No. 70.
.:
In Canada
:
• Current Canadian Electrical Code C22.1.
• Local plumbing and waste water codes.
• Other applicable local codes.
Refer to the Unit Application Data Table 1 and the
Electrical Data table for the unit.
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.
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).
This unit is not to be used for temporary heating of
buildings or structures under construction.
TABLE 1: UNIT APPLICATION DATA (BQ)
UNIT MODEL NUMBER 036 048 060
Voltage Variation,
Min. / Max.
Wet Bulb Temper ature (ºF) of Air on
Evaporator Coil, Min. / Max
Dry Bulb Temperature (ºF) of Air on
Condenser Coil, Min. / Max.
1. Utilization range “A” in accordance with ARI Standard 110.
1
Supply Air CFM, Nom. 1200 1600 2000
208/230 187 / 253
460 414 / 506
575 518 / 630
LOCATION
Use the following guidelines to select a suitable location for these units.
1. Unit is designed for outdoor installation only.
2. Condenser coils must have an unlimited supply of
air.
3. Where a choice of location is possible, position the
unit on either north or east side of building.
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
57 / 72
0 / 120
greater than the unit base rails. Do not tie slab to
the building foundation.
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.
6. Maintain level tolerance to 1/2 inch maximum
across the entire length or width of the unit.
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.
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RIGGING AND HANDLING
Exercise care when moving the unit. Do not remove
any packaging until the unit is near the place of installation. 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.
Units may also be moved or lifted with a forklift. Slotted
openings in the base rails are provided for this purpose. 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.
Refer to Table 8 for unit weights and to the Figure 6 for
approximate center of gravity.
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.
CLEARANCES
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.
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 dimensions of the duct connections 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 Figures 7 and 10 for information concerning
side and bottom supply and return air duct openings.
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 con nection on the
unit to an open drain.
All units require certain clearances for proper operation
and service. Installer must make provisions for adequate ventilation air. Refer to Dimensions and Clearances shown in Figures 7 thr ough 10 and T able 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, combustion air inlet or vent outlets.
DUCTWORK
Ductwork should be designed and sized according to
the methods in Manual Q of the A ir Conditioning Contractors of America (ACCA).
NOTE: The condensate drain operates in a negative
pressure in the cabinet. The condensate drain
line MUST be trapped to provide proper drainage. See Figure 1.
FIGURE 1 - RECOMMENDED DRAIN PIPING
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COMPRESSORS
Units are shipped with compressor mountings factoryadjusted and ready for operation.
Units with scroll compressors have a shipping bracket
which must be removed after the unit is set in place.
See Figure 2.
COMPRESSOR
MOUNTING
BRACKET BASE
REMOVE THESE
SCREWS (2)
MOUNTING
BRACKET TOP
(REMOVE)
FILTERS
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 shutdown. Minimum filter area and required sizes are
shown in Physical Data Table 7.
SERVICE ACCESS
The following removable panels provide access to all
serviceable components:
• Compressor compartment
• Electric Heat compartment
• Blower compartment
• Main control box
• Filter compartment
Refer to the Dimensions and Clearances shown in Figures 7 and 11 for location of these access panels.
WIRE TIE (CUT AND REMOVE)
FIGURE 2 - COMPRESSOR RESTRAINING
BRACKET
Do not loosen compressor mounting bolts.
Make sure that all screws and panel latches
are replaced and properly positioned on the
unit to maintain an airtight seal.
8 Johnson Controls Unitary Products
364985-XIM-B-0508
TYPICAL POWER WIRING
REFER TO THE ELECTRICAL DATA
TABLES TO SIZE THE DISCONNECT
SWITCH, OVERCURRENT PROTECTION AND WIRING.
TYPICAL CONTROL WIRING
COOLING / HEATING (24 VOLT THERMOSTAT)
THERMOSTAT
TERMINALS
ADD
JUMPER
1
RH
RC
UNIT TERMINAL
STRIP TB1
R
Y
W
G
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
RC
RH
Y1
Y2
W1
W2
A1
A2
1
UNIT TERMINAL
STRIP TB1
R
2
3
G
B
NOT
USED
4
T
T
TO REMOTE SENSOR
2TH040702224 IF USED
Y1
Y2
W1
W2
G
C
X
OCC
24 VOLT
TRANSFORMER
THERMOSTAT
TERMINALS
ADD
JUMPER
4
LED 1
LED 2
COM
ADD
JUMPER
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.
Y1
Y2
W1
W2
G
C
24 VOLT
TRANSFORMER
COOLING / HEATING (ELECTRONIC THERMOSTAT)
SINGLE STAGE
THERMOSTAT
TERMINALS
ADD
JUMPER
1
ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET07701024 (INCLUDES SUBBASE).
TO CONTROL THE ECONOMIZER ON SECOND STAGE COOLING, USE THERMOSTAT
2TH04700224.
1
UNIT TERMINAL
RH
RC
Y
W
G
STRIP TB1
R
Y1
W1
G
C
24 VOLT
TRANSFORMER
FIGURE 3 - TYPICAL FIELD POWER & CONTROL WIRING
Johnson Controls Unitary Products 9
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 manufacturer'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.
POWER AND CONTROL WIRING
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 tolerances, which must be maintained at the compressor
terminals, during starting and running conditions, are
indicated on the unit Rating Plate and the Unit Application Data table.
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.
A fused disconnect switch should be field provided for
the unit. The switch must be separate from all other circuits. Wire entry at knockout openings require conduit
fittings to comply with NEC (in U.S.A.), CEC (in Canada) 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.
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.
364985-XIM-B-0508
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.
Refer to the Typical Field Wiring Figure 3 and to the
appropriate unit wiring diagram for control circuit and
power wiring information.
TABLE 2: CONTROL WIRE SIZES
Wire Size
18 AWG 150 Feet
1. From the unit to the thermostat and back to the unit.
Maximum Length
1
OPTIONS/ACCESSORIES
ELECTRIC HEAT
The factory- or field-installed heaters are wired for single point power supply. Power supply need only be
brought into the single point terminal block and thermostat wiring to the low voltage terminal strip located in
the upper portion of the unit control box.
These CSA approved heaters are located within the
central compartment of the unit with the heater elements 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.
10 Johnson Controls Unitary Products
364985-XIM-B-0508
TABLE 3: ELECTRIC HEATER CFM LIMITATIONS
UNIT MODEL SIZE
NOMINAL TONS
036
(3)
048
(4)
060
(5)
ECONOMIZER/MOTORIZED DAMPER AND RAIN HOOD
VOLTAGE
5 7 10 15 20 30
208/230-1-60 900 900 900 900 900 208/230-3-60 900 900 900 900 900 -
460-3-60 - 900 900 900 900 -
600-3-60 - - 900 900 900 208/230-1-60 1200 1200 1200 1200 1200 208/230-3-60 1200 1200 1200 1200 1200 -
460-3-60 - 1200 1200 1200 1200 -
600-3-60 - - 1200 1200 1200 208/230-1-60 1500 1500 1500 1500 1500 1500
208/230-3-60 1500 1500 1500 1500 1500 1500
460-3-60 - 1500 1500 1500 1500 1500
600-3-60 - - 1500 1500 1500 1500
The instruction for the optional economizer/motorized
damper and rain hood can be found in form 03507364-000. Use these instructions when field assembling 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 baffles, and all the control sensors are factory mounted as
part of the “Factory installed” economizer/motorized
damper options.
MINIMUM SUPPLY AIR CFM
HEATER SIZE NOMINAL KW
ECONOMIZER AND POWER EXHAUST DAMPER
SET POINT ADJUSTMENTS AND INFORMATION
Remove the economizer access panel from the unit.
Loosen but do not remove the two panel latches.
Locate the economizer control module, where the following adjustments will be made.
POWER EXHAUST/BAROMETRIC RELIEF DAMPER AND RAIN HOOD
The instructions for the power exhaust/barometric relief
damper and rain hood can be found in form 530.18N1.10V.
All of the components, including the dampers, hardware, and mounting instructions are shipped in a single
package external from the unit and must be field
assembled and installed.
Power exhaust is only available as a field installed
accessory.
Extreme care must be exercised in turning all
setpoint, maximum, and minimum damper
positioning adjustment screws to prevent twisting them off.
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 deenergize terminals “R” to “G”.
Johnson Controls Unitary Products 11
364985-XIM-B-0508
MINIMUM POSITION ADJUSTMENT
With thermostat set to indoor fan on position, or terminals “R” to “G” energized, turn the Minimum Position
Adjusting screw (located on the damper control module) counterclockwise until the desired minimum
damper position has been attained.
ENTHALPY SET POINT ADJUSTMENT
The enthalpy setpoint may now be set by selecting the
desired setpoint shown in the Enthalpy Setpoint Adjustment Figure 4. Adjust as follows:
• 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 WITHOUT POWER EXHAUST)
• With no power exhaust option, adjust the Exha u st
Air Adjustment Screw fully clockwise.
• With power exhaust option, each building pressurization 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.
INDOOR AIR QUALITY
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 accordance 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 proportionately modulated from the 2 to 10 Vdc signal, with 2
Vdc corresponding to full closed and 10 Vdc corresponding 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 modulates from the minimum position to the full open position based on the highest call from either the mixed air
sensor input or the AQ voltage input.
• 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
CURVE
A
B
C
D
CONTROL POINT
APPROX.
AT 50% RH
73 (23)
70 (21)
67 (19)
63 (17)
40
(4)
35
(2)
0
F (0C)
45
(7)
50
(10)
105
(41)
110
(43)
85
(32)
(29)
80
(27)
75
(24)
70
(21)
65
(18)
60
(16)
55
A
(13)
B
C
D
A
B
C
D
(35)
(38)
100
95
90
40
35
(2)
(4)45(7)
50
(10)55(13)
APPROXIMATE DRY BULB TEMPERATURE - 0F (0C)
FIGURE 4 - ENTHALPY SETPOINT ADJUSTMENT
Exhaust Air
Adjustment
Screw
Exhaust Air LED
Damper Min.
Position
Screw
Indoor Air Quality
Max. Adjustment
Screw
Indoor Air Quality
LED
Indoor Air Quality
Min. Adjustment
Screw
Free Cooling LED
Economizer Enthalpy
Set Point Adjustment
Screw
N1
P1
T1
AQ1 AQ
SO+ SO
SR+
65
60
(18)
EXH
EXH
Min
Pos
IAQ
Max
(21)
Set
(16)
N
P
T
IAQ
IAQ
Min
Free
Cool
SR
BC
A
D
70
75
(24)80(27)
85
(29)
Vac
HOT
95
90
(32)
(35)
TR TR1
24
Vac
COM
+
1
3
EF EF1
100
(38)
24
105
110
(41)
(43)
2
5
4
FIGURE 5 - HONEYWELL ECONOMIZER CONTROL W7212
Johnson Controls Unitary Products 13
364985-XIM-B-0508
447/
8
A
BACK OF UNIT
821/
4
D
X
APPROXIMATE
CENTER OF GRAVITY
FRONT OF UNIT
C
B
CONDENSER COIL
Y
END OF UNIT
FIGURE 6 - FOUR AND SIX POINT LOADING
TABLE 4: CENTER OF GRAVITY (ALL MODELS)
DIMENSION 3 - 5 TON
X 40-¾”
Y 19-¾”
TABLE 5: BQ 4 POINT LOADS WEIGHT DISTRIBUTION
UNIT TOTALABCD
BQ036
BQ048
BQ060
628 139 137 174 177
668 148 146 185 189
693 154 151 192 196
447/
8
F
X
APPROXIMATE
CENTER OF GRAVITY
A
FRONT OF UNIT
BACK OF UNIT
821/
4
B
E
D
C
CONDENSER COIL
Y
END OF UNIT
TABLE 6: BQ 6 POINT LOADS WEIGHT DISTRIBUTION
UNIT TOTAL A B C D E F
BQ036
BQ048
BQ060
14 Johnson Controls Unitary Products
628939291116117119
668 99 98 97 123 125 126
693 103 102 100 128 129 131
364985-XIM-B-0508
TABLE 7: PHYSICAL DATA
EVAPORATOR
BLOWER
EVAPORATOR
COIL
CONDENSER
FANS
CONDENSER
COILS
COMPRESSOR
(Qty. Per Unit)
AIR
FILTERS
CHARGE
MODELS
Centrifugal Blower (Dia. x Wd. in.) 12 X 10 12 X 10 12 X 10
Fan Motor HP (Direct Drive) 1/2 3/4 1
Fan Motor HP (Belt Drive) 1 1/2 1 1/2 1 1/2
Fan Motor HP (Belt Drive High Static) 1 1/2 1 1/2 2
Rows Deep 4 3 3
Fins Per Inch 16 15 15
Face Area (Sq. Ft.) 4.3 5.1 5.1
Propeller Dia. (in.) 22 22 24
Fan Motor Hp 1/3 1/2 1/2
Nom. CFM 4300 4200 4500
Rows Deep 1 1 1
Fins Per Inch 20 20 20
Face Area (Sq. Ft.) 17.1 17.1 17.1
Reciprocating Type 1 1 1
Quantity Per Unit (15” X 20” X 1” or 2“) 2 2 2
Quantity Per Unit (14” X 25” X 1” or 2“) 1 1 1
Total Face Area (sq. ft.) 6.6 6.6 6.6
Refrigerant 22
(lbs./oz.)
036 048 060
7/12 9/2 8/4
BQ
TABLE 8: OPERATING WEIGHTS (LBS.)
MODEL SIZE 3 TON 4 TON 5 TON
BASIC UNIT
OPTIONS
Electric Heater
ACCY.
Barometric Relief / Fixed Air Damper 10
BQ 628 668 693
Economizer 50
Motorized Damper 26
5 - 7 kW 18
10 - 15 kW 23
20 - 30 kW 28
Roof Curb 92
Belt-Drive Blower 5
Johnson Controls Unitary Products 15
364985-XIM-B-0508
TABLE 9: ELECTRICAL DATA - BQ036-060 DIRECT DRIVE W/O POWERED CONVENIENCE OUTLET
Size
(Tons)
(3.0)
(4.0)
(5.0)
Volt
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
460-3-60 5.9 42.0 8.2 1.0 2.2 0.0
575-3-60 4.8 34.0 6.7 1.0 2.2 0.0
208-3-60 14.7 130.0 23.0 2.3 5.0 0.0
230-3-60 14.7 130.0 23.0 2.3 5.0 0.0
048
460-3-60 7.7 64.0 12.0 1.3 2.2 0.0
575-3-60 6.4 52.0 10.0 1.3 2.2 0.0
208-3-60 19.3 137.0 27.0 2.3 6.6 0.0
230-3-60 19.3 137.0 27.0 2.3 6.6 0.0
060
460-3-60 10.0 62.0 14.0 1.3 3.3 0.0
575-3-60 7.9 50.0 11.0 1.3 3.3 0.0
Compressors
(each)
RLA LRA MCC FLA FLA FLA Model kW Stages Amps
OD Fan
Motors
(each)
1. Minimum Circuit Ampacity.
2. Dual Element, Time Delay Type.
3. HACR type per NEC.
Supply
Blower
Motor
Pwr
Conv
Outlet
Max
Electric Heat Option
None - - - 21.0 30
E05 4.0 1 11.1 34.9 40
E07 5.6 1 15.5 40.4 45
E10 8.0 1 22.2 48.7 50
E15 11.9 2 33.0 62.3 70
E20 15.9 2 44.1 76.1 80
None - - - 21.0 30
E05 5.3 1 13.3 36.9 45
E07 7.5 1 18.8 43.5 50
E10 10.6 1 26.6 52.8 60
E15 15.9 2 39.9 68.8 70
E20 21.2 2 53.2 84.7 90
None - - - 10.6 15
E07 6.8 1 8.5 20.8 25
E10 10.1 1 12.7 25.8 30
E15 13.6 2 17.1 31.0 35
E20 19.5 2 24.5 39.9 40
None - - - 8.6 15
E10 10.6 1 10.6 21.3 25
E15 15.9 1 16.0 27.7 30
E20 21.2 2 21.3 34.1 35
None - - - 25.7 35
E05 4.0 1 11.1 39.6 50
E07 5.6 1 15.5 45.1 50
E10 8.0 1 22.2 53.4 60
E15 11.9 2 33.0 67.0 70
E20 15.9 2 44.1 80.8 90
None - - - 25.7 35
E05 5.3 1 13.3 41.6 50
E07 7.5 1 18.8 48.2 50
E10 10.6 1 26.6 57.5 60
E15 15.9 2 39.9 73.5 80
E20 21.2 2 53.2 89.4 90
None - - - 13.1 20
E07 6.8 1 8.5 23.3 25
E10 10.1 1 12.7 28.3 30
E15 13.6 2 17.1 33.6 35
E20 19.5 2 24.5 42.4 45
None - - - 10.8 15
E10 10.6 1 10.6 23.5 25
E15 15.9 1 16.0 29.9 30
E20 21.2 2 21.3 36.3 40
None - - - 33.0 45
E05 4.0 1 11.1 46.9 60
E07 5.6 1 15.5 52.5 60
E10 8.0 1 22.2 60.8 70
E15 11.9 2 33.0 74.3 80
E20 15.9 2 44.1 88.2 90
E30 22.2 2 61.6 110.1 125
None - - - 33.0 45
E05 5.3 1 13.3 49.0 60
E07 7.5 1 18.8 55.6 70
E10 10.6 1 26.6 64.9 70
E15 15.9 2 39.9 80.8 90
E20 21.2 2 53.2 96.8 100
E30 29.6 2 74.3 122.0 125
None - - - 17.1 25
E07 6.8 1 8.5 27.3 35
E10 10.1 1 12.7 32.3 35
E15 13.6 2 17.1 37.5 40
E20 19.5 2 24.5 46.4 50
E30 28.8 2 36.1 60.4 70
None - - - 13.5 20
E10 10.6 1 10.6 26.2 30
E15 15.9 1 16.0 32.6 35
E20 21.2 2 21.3 39.0 40
E30 30.4 2 30.5 50.1 60
MCA
(Amps)
1
Fuse
Breaker
Size
(Amps)
2
/
3
16 Johnson Controls Unitary Products
364985-XIM-B-0508
TABLE 10: ELECTRICAL DATA - BQ036-060 BELT DRIVE W/O POWERED CONVENIENCE OUTLET
Size
(Tons)
(3.0)
(4.0)
(5.0)
Volt
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
460-3-60 5.9 42.0 8.2 1.0 2.6 0.0
575-3-60 4.8 34.0 6.7 1.0 2.0 0.0
208-3-60 14.7 130.0 23.0 2.3 5.2 0.0
230-3-60 14.7 130.0 23.0 2.3 5.2 0.0
048
460-3-60 7.7 64.0 12.0 1.3 2.6 0.0
575-3-60 6.4 52.0 10.0 1.3 2.0 0.0
208-3-60 19.3 137.0 27.0 2.3 5.2 0.0
230-3-60 19.3 137.0 27.0 2.3 5.2 0.0
060
460-3-60 10.0 62.0 14.0 1.3 2.6 0.0
575-3-60 7.9 50.0 11.0 1.3 2.0 0.0
Compressors
(each)
RLA LRA MCC FLA FLA FLA Model kW Stages Amps
OD Fan
Motors
(each)
1. Minimum Circuit Ampacity.
2. Dual Element, Time Delay Type.
3. HACR type per NEC.
Supply
Blower
Motor
Pwr
Conv
Outlet
Max
Electric Heat Option
None - - - 21.8 30
E05 4.0 1 11.1 35.7 40
E07 5.6 1 15.5 41.2 45
E10 8.0 1 22.2 49.5 50
E15 11.9 2 33.0 63.1 70
E20 15.9 2 44.1 76.9 80
None - - - 21.8 30
E05 5.3 1 13.3 37.7 45
E07 7.5 1 18.8 44.3 50
E10 10.6 1 26.6 53.6 60
E15 15.9 2 39.9 69.6 70
E20 21.2 2 53.2 85.5 90
None - - - 11.0 15
E07 6.8 1 8.5 21.2 25
E10 10.1 1 12.7 26.2 30
E15 13.6 2 17.1 31.4 35
E20 19.5 2 24.5 40.3 45
None - - - 8.8 15
E10 10.6 1 10.6 21.5 25
E15 15.9 1 16.0 27.9 30
E20 21.2 2 21.3 34.3 35
None - - - 25.9 35
E05 4.0 1 11.1 39.8 50
E07 5.6 1 15.5 45.3 50
E10 8.0 1 22.2 53.6 60
E15 11.9 2 33.0 67.2 70
E20 15.9 2 44.1 81.0 90
None - - - 25.9 35
E05 5.3 1 13.3 41.8 50
E07 7.5 1 18.8 48.4 50
E10 10.6 1 26.6 57.7 60
E15 15.9 2 39.9 73.7 80
E20 21.2 2 53.2 89.6 90
None - - - 13.5 20
E07 6.8 1 8.5 23.7 25
E10 10.1 1 12.7 28.7 30
E15 13.6 2 17.1 34.0 35
E20 19.5 2 24.5 42.8 45
None - - - 11.0 15
E10 10.6 1 10.6 23.8 25
E15 15.9 1 16.0 30.2 35
E20 21.2 2 21.3 36.5 40
None - - - 31.6 40
E05 4.0 1 11.1 45.5 60
E07 5.6 1 15.5 51.1 60
E10 8.0 1 22.2 59.4 70
E15 11.9 2 33.0 72.9 80
E20 15.9 2 44.1 86.8 90
E30 22.2 2 61.6 108.7 110
None - - - 31.6 40
E05 5.3 1 13.3 47.6 60
E07 7.5 1 18.8 54.2 60
E10 10.6 1 26.6 63.5 70
E15 15.9 2 39.9 79.4 80
E20 21.2 2 53.2 95.4 100
E30 29.6 2 74.3 120.6 125
None - - - 16.4 25
E07 6.8 1 8.5 26.6 30
E10 10.1 1 12.7 31.6 35
E15 13.6 2 17.1 36.8 40
E20 19.5 2 24.5 45.7 50
E30 28.8 2 36.1 59.7 60
None - - - 12.9 20
E10 10.6 1 10.6 25.6 30
E15 15.9 1 16.0 32.0 35
E20 21.2 2 21.3 38.4 40
E30 30.4 2 30.5 49.4 50
MCA
(Amps)
1
Fuse
Breaker
Size
(Amps)
2
/
3
Johnson Controls Unitary Products 17
364985-XIM-B-0508
T ABLE 11: ELECTRICAL DA TA - BQ036-060 BELT DRIVE HIGH ST ATIC W/O POWERED CONVENIENCE OUTLET
Size
(Tons)
(3.0)
(4.0)
(5.0)
Volt
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
460-3-60 5.9 42.0 8.2 1.0 2.6 0.0
575-3-60 4.8 34.0 6.7 1.0 2.0 0.0
208-3-60 14.7 130.0 23.0 2.3 5.2 0.0
230-3-60 14.7 130.0 23.0 2.3 5.2 0.0
048
460-3-60 7.7 64.0 12.0 1.3 2.6 0.0
575-3-60 6.4 52.0 10.0 1.3 2.0 0.0
208-3-60 19.3 137.0 27.0 2.3 8.2 0.0
230-3-60 19.3 137.0 27.0 2.3 8.2 0.0
060
460-3-60 10.0 62.0 14.0 1.3 4.1 0.0
575-3-60 7.9 50.0 11.0 1.3 3.6 0.0
Compressors
(each)
RLA LRA MCC FLA FLA FLA Model kW Stages Amps
OD Fan
Motors
(each)
1. Minimum Circuit Ampacity.
2. Dual Element, Time Delay Type.
3. HACR type per NEC.
Supply
Blower
Motor
Pwr
Conv
Outlet
Max
Electric Heat Option
None - - - 21.8 30
E05 4.0 1 11.1 35.7 40
E07 5.6 1 15.5 41.2 45
E10 8.0 1 22.2 49.5 50
E15 11.9 2 33.0 63.1 70
E20 15.9 2 44.1 76.9 80
None - - - 21.8 30
E05 5.3 1 13.3 37.7 45
E07 7.5 1 18.8 44.3 50
E10 10.6 1 26.6 53.6 60
E15 15.9 2 39.9 69.6 70
E20 21.2 2 53.2 85.5 90
None - - - 11.0 15
E07 6.8 1 8.5 21.2 25
E10 10.1 1 12.7 26.2 30
E15 13.6 2 17.1 31.4 35
E20 19.5 2 24.5 40.3 45
None - - - 8.8 15
E10 10.6 1 10.6 21.5 25
E15 15.9 1 16.0 27.9 30
E20 21.2 2 21.3 34.3 35
None - - - 25.9 35
E05 4.0 1 11.1 39.8 50
E07 5.6 1 15.5 45.3 50
E10 8.0 1 22.2 53.6 60
E15 11.9 2 33.0 67.2 70
E20 15.9 2 44.1 81.0 90
None - - - 25.9 35
E05 5.3 1 13.3 41.8 50
E07 7.5 1 18.8 48.4 50
E10 10.6 1 26.6 57.7 60
E15 15.9 2 39.9 73.7 80
E20 21.2 2 53.2 89.6 90
None - - - 13.5 20
E07 6.8 1 8.5 23.7 25
E10 10.1 1 12.7 28.7 30
E15 13.6 2 17.1 34.0 35
E20 19.5 2 24.5 42.8 45
None - - - 11.0 15
E10 10.6 1 10.6 23.8 25
E15 15.9 1 16.0 30.2 35
E20 21.2 2 21.3 36.5 40
None - - - 34.6 45
E05 4.0 1 11.1 48.5 60
E07 5.6 1 15.5 54.1 60
E10 8.0 1 22.2 62.4 70
E15 11.9 2 33.0 75.9 80
E20 15.9 2 44.1 89.8 90
E30 22.2 2 61.6 111.7 125
None - - - 34.6 45
E05 5.3 1 13.3 50.6 60
E07 7.5 1 18.8 57.2 70
E10 10.6 1 26.6 66.5 70
E15 15.9 2 39.9 82.4 90
E20 21.2 2 53.2 98.4 100
E30 29.6 2 74.3 123.6 125
None - - - 17.9 25
E07 6.8 1 8.5 28.1 35
E10 10.1 1 12.7 33.1 40
E15 13.6 2 17.1 38.3 40
E20 19.5 2 24.5 47.2 50
E30 28.8 2 36.1 61.2 70
None - - - 14.5 20
E10 10.6 1 10.6 27.2 30
E15 15.9 1 16.0 33.6 35
E20 21.2 2 21.3 40.0 40
E30 30.4 2 30.5 51.0 60
MCA
(Amps)
1
Fuse
Breaker
Size
(Amps)
2
/
3
18 Johnson Controls Unitary Products
364985-XIM-B-0508
TABLE 12: ELECTRICAL DATA - BQ036-060 DIRECT DRIVE W/POWERED CONVENIENCE OUTLET
Size
(Tons)
(3.0)
(4.0)
(5.0)
Volt
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
460-3-60 5.9 42.0 8.2 1.0 2.2 5.0
575-3-60 4.8 34.0 6.7 1.0 2.2 4.0
208-3-60 14.7 130.0 23.0 2.3 5.0 10.0
230-3-60 14.7 130.0 23.0 2.3 5.0 10.0
048
460-3-60 7.7 64.0 12.0 1.3 2.2 5.0
575-3-60 6.4 52.0 10.0 1.3 2.2 4.0
208-3-60 19.3 137.0 27.0 2.3 6.6 10.0
230-3-60 19.3 137.0 27.0 2.3 6.6 10.0
060
460-3-60 10.0 62.0 14.0 1.3 3.3 5.0
575-3-60 7.9 50.0 11.0 1.3 3.3 4.0
Compressors
(each)
RLA LRA MCC FLA FLA FLA Model kW Stages Amps
OD Fan
Motors
(each)
1. Minimum Circuit Ampacity.
2. Dual Element, Time Delay Type.
3. HACR type per NEC.
Supply
Blower
Motor
Pwr
Conv
Outlet
Max
Electric Heat Option
None - - - 31.0 40
E05 4.0 1 11.1 44.9 50
E07 5.6 1 15.5 50.4 60
E10 8.0 1 22.2 58.7 60
E15 11.9 2 33.0 72.3 80
E20 15.9 2 44.1 86.1 90
None - - - 31.0 40
E05 5.3 1 13.3 46.9 50
E07 7.5 1 18.8 53.5 60
E10 10.6 1 26.6 62.8 70
E15 15.9 2 39.9 78.8 80
E20 21.2 2 53.2 94.7 100
None - - - 15.6 20
E07 6.8 1 8.5 25.8 30
E10 10.1 1 12.7 30.8 35
E15 13.6 2 17.1 36.0 40
E20 19.5 2 24.5 44.9 45
None - - - 12.6 15
E10 10.6 1 10.6 25.3 30
E15 15.9 1 16.0 31.7 35
E20 21.2 2 21.3 38.1 40
None - - - 35.7 45
E05 4.0 1 11.1 49.6 60
E07 5.6 1 15.5 55.1 60
E10 8.0 1 22.2 63.4 70
E15 11.9 2 33.0 77.0 80
E20 15.9 2 44.1 90.8 100
None - - - 35.7 45
E05 5.3 1 13.3 51.6 60
E07 7.5 1 18.8 58.2 60
E10 10.6 1 26.6 67.5 70
E15 15.9 2 39.9 83.5 90
E20 21.2 2 53.2 99.4 100
None - - - 18.1 25
E07 6.8 1 8.5 28.3 30
E10 10.1 1 12.7 33.3 35
E15 13.6 2 17.1 38.6 40
E20 19.5 2 24.5 47.4 50
None - - - 14.8 20
E10 10.6 1 10.6 27.5 30
E15 15.9 1 16.0 33.9 35
E20 21.2 2 21.3 40.3 45
None - - - 43.0 60
E05 4.0 1 11.1 56.9 70
E07 5.6 1 15.5 62.5 70
E10 8.0 1 22.2 70.8 80
E15 11.9 2 33.0 84.3 90
E20 15.9 2 44.1 98.2 100
E30 22.2 2 61.6 120.1 125
None - - - 43.0 60
E05 5.3 1 13.3 59.0 70
E07 7.5 1 18.8 65.6 80
E10 10.6 1 26.6 74.9 80
E15 15.9 2 39.9 90.8 100
E20 21.2 2 53.2 106.8 110
E30 29.6 2 74.3 132.0 150
None - - - 22.1 30
E07 6.8 1 8.5 32.3 40
E10 10.1 1 12.7 37.3 40
E15 13.6 2 17.1 42.5 45
E20 19.5 2 24.5 51.4 60
E30 28.8 2 36.1 65.4 70
None - - - 17.5 25
E10 10.6 1 10.6 30.2 35
E15 15.9 1 16.0 36.6 40
E20 21.2 2 21.3 43.0 45
E30 30.4 2 30.5 54.1 60
MCA
(Amps)
1
Fuse
Breaker
Size
(Amps)
2
/
3
Johnson Controls Unitary Products 19
364985-XIM-B-0508
TABLE 13: ELECTRICAL DATA - BQ036-060 BELT DRIVE W/POWERED CONVENIENCE OUTLET
Size
(Tons)
(3.0)
(4.0)
(5.0)
Volt
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
460-3-60 5.9 42.0 8.2 1.0 2.6 5.0
575-3-60 4.8 34.0 6.7 1.0 2.0 4.0
208-3-60 14.7 130.0 23.0 2.3 5.2 10.0
230-3-60 14.7 130.0 23.0 2.3 5.2 10.0
048
460-3-60 7.7 64.0 12.0 1.3 2.6 5.0
575-3-60 6.4 52.0 10.0 1.3 2.0 4.0
208-3-60 19.3 137.0 27.0 2.3 5.2 10.0
230-3-60 19.3 137.0 27.0 2.3 5.2 10.0
060
460-3-60 10.0 62.0 14.0 1.3 2.6 5.0
575-3-60 7.9 50.0 11.0 1.3 2.0 4.0
Compressors
(each)
RLA LRA MCC FLA FLA FLA Model kW Stages Amps
OD Fan
Motors
(each)
1. Minimum Circuit Ampacity.
2. Dual Element, Time Delay Type.
3. HACR type per NEC.
Supply
Blower
Motor
Pwr
Conv
Outlet
Max
Electric Heat Option
None - - - 31.8 40
E05 4.0 1 11.1 45.7 50
E07 5.6 1 15.5 51.2 60
E10 8.0 1 22.2 59.5 60
E15 11.9 2 33.0 73.1 80
E20 15.9 2 44.1 86.9 90
None - - - 31.8 40
E05 5.3 1 13.3 47.7 50
E07 7.5 1 18.8 54.3 60
E10 10.6 1 26.6 63.6 70
E15 15.9 2 39.9 79.6 80
E20 21.2 2 53.2 95.5 100
None - - - 16.0 20
E07 6.8 1 8.5 26.2 30
E10 10.1 1 12.7 31.2 35
E15 13.6 2 17.1 36.4 40
E20 19.5 2 24.5 45.3 50
None - - - 12.8 15
E10 10.6 1 10.6 25.5 30
E15 15.9 1 16.0 31.9 35
E20 21.2 2 21.3 38.3 40
None - - - 35.9 50
E05 4.0 1 11.1 49.8 60
E07 5.6 1 15.5 55.3 60
E10 8.0 1 22.2 63.6 70
E15 11.9 2 33.0 77.2 80
E20 15.9 2 44.1 91.0 100
None - - - 35.9 50
E05 5.3 1 13.3 51.8 60
E07 7.5 1 18.8 58.4 60
E10 10.6 1 26.6 67.7 70
E15 15.9 2 39.9 83.7 90
E20 21.2 2 53.2 99.6 100
None - - - 18.5 25
E07 6.8 1 8.5 28.7 30
E10 10.1 1 12.7 33.7 35
E15 13.6 2 17.1 39.0 40
E20 19.5 2 24.5 47.8 50
None - - - 15.0 20
E10 10.6 1 10.6 27.8 30
E15 15.9 1 16.0 34.2 35
E20 21.2 2 21.3 40.5 45
None - - - 41.6 60
E05 4.0 1 11.1 55.5 70
E07 5.6 1 15.5 61.1 70
E10 8.0 1 22.2 69.4 80
E15 11.9 2 33.0 82.9 90
E20 15.9 2 44.1 96.8 100
E30 22.2 2 61.6 118.7 125
None - - - 41.6 60
E05 5.3 1 13.3 57.6 70
E07 7.5 1 18.8 64.2 70
E10 10.6 1 26.6 73.5 80
E15 15.9 2 39.9 89.4 90
E20 21.2 2 53.2 105.4 110
E30 29.6 2 74.3 130.6 150
None - - - 21.4 30
E07 6.8 1 8.5 31.6 35
E10 10.1 1 12.7 36.6 40
E15 13.6 2 17.1 41.8 45
E20 19.5 2 24.5 50.7 60
E30 28.8 2 36.1 64.7 70
None - - - 16.9 20
E10 10.6 1 10.6 29.6 30
E15 15.9 1 16.0 36.0 40
E20 21.2 2 21.3 42.4 45
E30 30.4 2 30.5 53.4 60
MCA
(Amps)
1
Fuse
Breaker
Size
(Amps)
2
/
3
20 Johnson Controls Unitary Products
364985-XIM-B-0508
T ABLE 14: ELECTRICAL DATA - BQ036-060 BELT DRIVE HIGH STA T IC W/POWERED CONVENIENCE OUTLET
Size
(Tons)
(3.0)
(4.0)
(5.0)
Volt
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
460-3-60 5.9 42.0 8.2 1.0 2.6 5.0
575-3-60 4.8 34.0 6.7 1.0 2.0 4.0
208-3-60 14.7 130.0 23.0 2.3 5.2 10.0
230-3-60 14.7 130.0 23.0 2.3 5.2 10.0
048
460-3-60 7.7 64.0 12.0 1.3 2.6 5.0
575-3-60 6.4 52.0 10.0 1.3 2.0 4.0
208-3-60 19.3 137.0 27.0 2.3 8.2 10.0
230-3-60 19.3 137.0 27.0 2.3 8.2 10.0
060
460-3-60 10.0 62.0 14.0 1.3 4.1 5.0
575-3-60 7.9 50.0 11.0 1.3 3.6 4.0
Compressors
(each)
RLA LRA MCC FLA FLA FLA Model kW Stages Amps
OD Fan
Motors
(each)
1. Minimum Circuit Ampacity.
2. Dual Element, Time Delay Type.
3. HACR type per NEC.
Supply
Blower
Motor
Pwr
Conv
Outlet
Max
Electric Heat Option
None - - - 31.8 40
E05 4.0 1 11.1 45.7 50
E07 5.6 1 15.5 51.2 60
E10 8.0 1 22.2 59.5 60
E15 11.9 2 33.0 73.1 80
E20 15.9 2 44.1 86.9 90
None - - - 31.8 40
E05 5.3 1 13.3 47.7 50
E07 7.5 1 18.8 54.3 60
E10 10.6 1 26.6 63.6 70
E15 15.9 2 39.9 79.6 80
E20 21.2 2 53.2 95.5 100
None - - - 16.0 20
E07 6.8 1 8.5 26.2 30
E10 10.1 1 12.7 31.2 35
E15 13.6 2 17.1 36.4 40
E20 19.5 2 24.5 45.3 50
None - - - 12.8 15
E10 10.6 1 10.6 25.5 30
E15 15.9 1 16.0 31.9 35
E20 21.2 2 21.3 38.3 40
None - - - 35.9 50
E05 4.0 1 11.1 49.8 60
E07 5.6 1 15.5 55.3 60
E10 8.0 1 22.2 63.6 70
E15 11.9 2 33.0 77.2 80
E20 15.9 2 44.1 91.0 100
None - - - 35.9 50
E05 5.3 1 13.3 51.8 60
E07 7.5 1 18.8 58.4 60
E10 10.6 1 26.6 67.7 70
E15 15.9 2 39.9 83.7 90
E20 21.2 2 53.2 99.6 100
None - - - 18.5 25
E07 6.8 1 8.5 28.7 30
E10 10.1 1 12.7 33.7 35
E15 13.6 2 17.1 39.0 40
E20 19.5 2 24.5 47.8 50
None - - - 15.0 20
E10 10.6 1 10.6 27.8 30
E15 15.9 1 16.0 34.2 35
E20 21.2 2 21.3 40.5 45
None - - - 44.6 60
E05 4.0 1 11.1 58.5 70
E07 5.6 1 15.5 64.1 70
E10 8.0 1 22.2 72.4 80
E15 11.9 2 33.0 85.9 90
E20 15.9 2 44.1 99.8 100
E30 22.2 2 61.6 121.7 125
None - - - 44.6 60
E05 5.3 1 13.3 60.6 70
E07 7.5 1 18.8 67.2 80
E10 10.6 1 26.6 76.5 80
E15 15.9 2 39.9 92.4 100
E20 21.2 2 53.2 108.4 110
E30 29.6 2 74.3 133.6 150
None - - - 22.9 30
E07 6.8 1 8.5 33.1 40
E10 10.1 1 12.7 38.1 45
E15 13.6 2 17.1 43.3 45
E20 19.5 2 24.5 52.2 60
E30 28.8 2 36.1 66.2 70
None - - - 18.5 25
E10 10.6 1 10.6 31.2 35
E15 15.9 1 16.0 37.6 40
E20 21.2 2 21.3 44.0 45
E30 30.4 2 30.5 55.0 60
MCA
(Amps)
1
Fuse
Breaker
Size
(Amps)
2
/
3
Johnson Controls Unitary Products 21
364985-XIM-B-0508
TABLE 15: ELECTRIC HEAT CORRECTION
FACTORS
NOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER
208
240
480
600
208 0.75
230 0.92
460 0.92
575 0.92
TABLE 16: VOLTAGE LIMITATIONS
POWER SUPPLY
208/230-3-60
460-3-60
575-3-60
1. Utilization Range “A” in accordance with ARI Standard
110.
MIN. MAX.
187 253
414 506
518 630
1
VOLTAGE
FIGURE 7: UNIT DIMENSIONS (3 - 5 TON HEAT PUMP) FRONT VIEW
22 Johnson Controls Unitary Products
364985-XIM-B-0508
FIGURE 8 - UNIT WITH ECONOMIZER RAINHOOD
DETAIL “A”
DETAIL “B”
FIGURE 9 - UNIT WITH FIXED OUTDOOR AIR/MOTORIZED DAMPER RAINHOOD
Johnson Controls Unitary Products 23
FIGURE 10 - UNIT DIMENSIONS (REAR VIEW)
Filter Access
Blower Motor Access
Dot Plugs
Field -Supplied Disconnect
Switch Location
Mounting Bracket for
Disconnect Switch
(Field Supplied)
Disconnect Switch Location
and Motor Access Panel for
Unit with “Belt-Drive” Option
A,B
Wiring Entry
(See Detail “B”)
Control Box Access
FIGURE 11 - DISCONNECT/BLOWER ACCESS
LOCATION
364985-XIM-B-0508
TABLE 18: MINIMUM CLEARANCES
LOCATION
Front
Rear
Left Side (Filter Access)
Right Side (Cond. Coil)
Below Unit
Above Unit
1
2
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 structures or shrubs should not obstruct condenser air discharge outlet.
CLEARANCE
24” (Cooling/Electric Heat)
32” (Gas Heat)
12” (Less Economizer)
36” (With Economizer or Fixed
Air/Motorized Damper)
24” (Less Economizer)
36” (With Economizer)
72” (For
Condenser Air Discharge)
24”
0”
TABLE 17: UTILITIES ENTRY
HOLE OPENING SIZE (DIA.) USED FOR
A
B
C
D
1
7/8” KO
2” KO
1
Control Wiring
Power Wiring
1-5/8” KO Gas Piping (Front)
1-1/2” KO
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
Side
2
Bottom
Side
Bottom
364985-XIM-B-0508
TABLE 19: SUPPLY AIR BLOWER PERFORMANCE (BQ036 BELT DRIVE) - SIDE DUCT APPLICATION
Air
Flow
(CFM)
800 678 0.37 761 0.44 840 0.52 917 0.60 991 0.69 1062 0.77 1130 0.87 1195 0.96 1259 1.06 1320 1.17
1000 699 0.42 782 0.49 862 0.56 939 0.64 1012 0.73 1083 0.82 1151 0.91 1217 1.01 1280 1.11 1341 1.21
1200 727 0.45 810 0.52 889 0.60 966 0.68 1040 0.76 1110 0.85 1179 0.95 1244 1.04 1308 1.14 1369 1.24
1400 759 0.51 842 0.58 922 0.65 998 0.73 1072 0.82 1143 0.91 1211 1.00 1276 1.10 1340 1.20 1401 1.30
1600 795 0.60 878 0.67 958 0.74 1035 0.82 1108 0.91 1179 1.00 1247 1.09 1313 1.19 1376 1.28 1438 1.39
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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
Available External Static Pressure - IWG
1
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
Air
Flow
(CFM)
800 661 0.39 751 0.45 838 0.53 922 0.61 1002 0.69 1079 0.78 1153 0.87 1225 0.96 1294 1.06 1361 1.16
1000 685 0.43 775 0.50 862 0.57 945 0.65 1025 0.73 1103 0.82 1177 0.91 1248 1.00 1317 1.10 1384 1.20
1200 714 0.46 805 0.53 892 0.60 975 0.68 1055 0.76 1132 0.85 1207 0.94 1278 1.04 1347 1.13 1414 1.23
1400 749 0.52 840 0.58 927 0.66 1010 0.74 1090 0.82 1167 0.91 1242 1.00 1313 1.09 1382 1.19 1449 1.29
1600 789 0.60 880 0.67 967 0.74 1050 0.82 1130 0.91 1207 0.99 1282 1.08 1353 1.18 1422 1.27 1489 1.37
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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
Available External Static Pressure - IWG
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.
1
Field Supplied Drive
TABLE 21: SUPPLY AIR BLOWER PERFORMANCE (BQ048 BELT DRIVE) - SIDE DUCT APPLICATION
Air
Flow
(CFM)
1000 656 0.41 757 0.46 851 0.52 937 0.58 1017 0.66 1092 0.73 1162 0.81 1228 0.90 1291 0.99 1351 1.08
1200 680 0.47 781 0.52 874 0.58 960 0.65 1041 0.72 1115 0.80 1185 0.88 1251 0.96 1314 1.05 1375 1.14
1400 706 0.56 807 0.61 901 0.67 987 0.73 1067 0.80 1142 0.88 1212 0.96 1278 1.05 1341 1.13 1401 1.22
1600 737 0.67 839 0.72 932 0.77 1018 0.84 1098 0.91 1173 0.99 1243 1.07 1309 1.15 1372 1.24 1433 1.33
1800 774 0.80 875 0.85 968 0.90 1055 0.97 1135 1.04 1209 1.12 1279 1.20 1345 1.28 1408 1.37 1469 1.46
2000 815 0.95 916 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
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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
Available External Static Pressure - IWG
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.
1
TABLE 22: SUPPLY AIR BLOWER PERFORMANCE (BQ048 BELT DRIVE) - BOTTOM DUCT APPLICATION
Air
Flow
(CFM)
1000 638 0.42 748 0.47 849 0.53 944 0.59 1031 0.66 1112 0.74 1188 0.82 1260 0.90 1329 0.98 1395 1.07
1200 663 0.48 773 0.53 875 0.59 969 0.65 1056 0.72 1138 0.80 1214 0.88 1286 0.96 1354 1.04 1420 1.13
1400 692 0.57 802 0.61 904 0.67 998 0.73 1085 0.80 1167 0.88 1243 0.96 1315 1.04 1383 1.13 1449 1.21
1600 726 0.67 836 0.72 938 0.78 1032 0.84 1119 0.91 1201 0.98 1277 1.06 1349 1.15 1417 1.23 1483 1.32
1800 766 0.80 876 0.85 977 0.90 1072 0.97 1159 1.04 1240 1.11 1316 1.19 1388 1.27 1457 1.36 1523 1.45
2000 811 0.95 921 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
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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
Available External Static Pressure - IWG
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.
1
4
FS
Johnson Controls Unitary Products 25
364985-XIM-B-0508
TABLE 23: SUPPLY AIR BLOWER PERFORMANCE (BQ060 BELT DRIVE) - SIDE DUCT APPLICATION
Air
Flow
(CFM)
1200 680 0.47 781 0.52 874 0.58 960 0.65 1041 0.72 1115 0.80 1185 0.88 1251 0.96 1314 1.05 1375 1.14
1400 706 0.56 807 0.61 901 0.67 987 0.73 1067 0.80 1142 0.88 1212 0.96 1278 1.05 1341 1.13 1401 1.22
1600 737 0.67 839 0.72 932 0.77 1018 0.84 1098 0.91 1173 0.99 1243 1.07 1309 1.15 1372 1.24 1433 1.33
1800 774 0.80 875 0.85 968 0.90 1055 0.97 1135 1.04 1209 1.12 1279 1.20 1345 1.28 1408 1.37 1469 1.46
2000 815 0.95 916 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
2200 862 1.12 963 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
2400 913 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
2600 969 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
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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
Available External Static Pressure - IWG
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.
1
TABLE 24: SUPPLY AIR BLOWER PERFORMANCE (BQ060 BELT DRIVE) - BOTTOM DUCT APPLICATION
Air
Flow
(CFM)
1200 663 0.48 773 0.53 875 0.59 969 0.65 1056 0.72 1138 0.80 1214 0.88 1286 0.96 1354 1.04 1420 1.13
1400 692 0.57 802 0.61 904 0.67 998 0.73 1085 0.80 1167 0.88 1243 0.96 1315 1.04 1383 1.13 1449 1.21
1600 726 0.67 836 0.72 938 0.78 1032 0.84 1119 0.91 1201 0.98 1277 1.06 1349 1.15 1417 1.23 1483 1.32
1800 766 0.80 876 0.85 977 0.90 1072 0.97 1159 1.04 1240 1.11 1316 1.19 1388 1.27 1457 1.36 1523 1.45
2000 811 0.95 921 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
2200 861 1.11 971 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
2400 917 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
2600 978 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
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
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
Available External Static Pressure - IWG
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.
1
Field Supplied Drive
TABLE 25: SUPPLY AIR BLOWER PERFORMANCE (BQ036, 048 & 060 DIRECT DRIVE) -
SIDE DUCT APPLICATION
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
UNIT
TONNAGE
3
3
3
4
3
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)
1
MOTOR
SPEED
CFM
HI - - - - - - 1720 825 1665 795 1600 765 1540 735 1490 700 1380 670
MED 1660 850 1630 820 1590 780 1550 750 1500 720 1450 690 1400 665 1360 650 1270 610
LOW 1470 750 1440 725 1410 700 1370 675 1330 650 1290 625 1250 610 1220 600 1130 560
HI - - - - 2000 1010 1950 975 1905 945 1840 910 1770 825 1660 825 1530 775
MED 1810 910 1780 880 1740 850 1700 825 1665 800 1620 775 1560 740 1480 700 1390 660
LOW 1635 810 1610 780 1580 760 1555 740 1540 730 1510 715 1460 690 1400 660 1300 615
HI - - - - 2500 1400 2420 1350 2340 1300 2260 1250 2160 1190 2060 1135 1925 1065
MED 2390 1350 2350 1300 2300 1255 2245 1210 2190 1165 2130 1120 2065 1075 1990 1030 1900 970
LOW 2270 1320 2230 1270 2190 1220 2145 1170 2090 1110 2030 1070 1960 1020 1890 970 1810 920
CFM
WATTS
WATTS
AVAILABLE EXTERNAL STATIC PRESSURE - IWG
CFM
CFM
WATTS
CFM
WATTS
WATTS
CFM
26 Johnson Controls Unitary Products
2
CFM
WATTS
CFM
WATTS
CFM
WATTS
WATTS
364985-XIM-B-0508
TABLE 26: SUPPLY AIR BLOWER PERFORMANCE (BQ036, 048 & 060 DIRECT DRIVE) -
BOTTOM DUCT APPLICATION
WATTS
2
CFM
WATTS
AVAILABLE EXTERNAL STATIC PRESSURE - IWG
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
UNIT
TONNAGE
3
3
3
4
3
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)
1
MOTOR
SPEED
CFM
HI - - - - - - 1661 825 1608 795 1545 765 1487 735 1439 700 1333 670
MED 1603 850 1574 820 1535 780 1497 750 1449 720 1401 690 1352 665 1314 650 1227 610
LOW 1420 750 1391 725 1362 700 1323 675 1285 650 1246 625 1208 610 1179 600 1092 560
HI - - - - 1931 1010 1882 975 1839 945 1776 910 1709 825 1603 825 1478 775
MED 1748 910 1719 880 1680 850 1641 825 1608 800 1564 775 1507 740 1429 700 1343 660
LOW 1579 810 1555 780 1526 760 1502 740 1487 730 1458 715 1410 690 1352 660 1256 615
HI - - - - 2412 1400 2335 1350 2258 1300 2181 1250 2085 1190 1988 1135 1858 1065
MED 2306 1350 2268 1300 2220 1255 2167 1210 2114 1165 2056 1120 1993 1075 1921 1030 1834 970
LOW 2191 1320 2152 1270 2114 1220 2070 1170 2017 1110 1960 1070 1892 1020 1825 970 1748 920
WATTS
CFM
WATTS
CFM
WATTS
CFM
WATTS
CFM
WATTS
CFM
TABLE 27: BELT DRIVE RPM SELECTION
CFM
WATTS
CFM
WATTS
Size
(Tons)
036
(3)
048
(4)
060
(5)
HP
Max
BHP
1.5 1.73 1VL44 AK64 805 865 920 980 1035 1095
1.5 1.73 1VP56 AK66 1115 1170 1225 1280 1335 1390
1.5 1.73 1VL44 AK56 930 995 1060 1130 1195 1260
1.5 1.73 1VP56 AK61 1210 1270 1330 1390 1455 1515
1.5 1.73 1VL44 AK56 930 995 1060 1130 1195 1260
2 2.3 1VP56 AK56 1325 1395 1460 1525 1590 1660
Motor
Sheave
Blower
Sheave
5 Turns
Open
4 Turns
Open
TABLE 28: BELT DRIVE BLOWER MOTOR AND DRIVE DATA
Size
(Tons)
036
(3.0)
048
(4.0)
060
(5.0)
HP RPM Eff. SF Frame
1-1/2 1725 0.8 1.15 56 2.8 - 3.8 7/8 1VL44 6.0 1 AK64 A37
1-1/2 1725 0.8 1.15 56 4.0 - 5.0 7/8 1VP56 6.2 1 AK66 A39
1-1/2 1725 0.8 1.15 56 2.8 - 3.8 7/8 1VL44 5.2 1 AK56 A36
1-1/2 1725 0.8 1.15 56 4.0 - 5.0 7/8 1VP56 5.7 1 AK61 A38
1-1/2 1725 0.8 1.15 56 2.8 - 3.8 7/8 1VL44 5.2 1 AK56 A36
2 1725 0.8 1.15 56 4.0 - 5.0 7/8 1VP56 5.2 1 AK56 A38
Motor Motor Sheave Blower Sheave
Datum Dia.
(in.)
Bore (in.) Model
TABLE 29: STATIC RESISTANCES
Description
1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000
Economizer
Electric
Heaters
1
Bottom Duct Connections
1 2
0.07 0.08 0.09 0.11 0.13 0.15 0.17 0.20 0.23 0.26 0.30
7 - 15 kW 0.04 0.05 0.06 0.07 0.08 0.10 0.12 0.14 0.16 0.19 0.22
20 - 30 kW 0.06 0.07 0.08 0.09 0. 11 0.13 0.15 0.17 0.20 0.23 0.26
1
0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.14 0.16 0.19 0.22
3 Turns
Open
2 Turns
Open
Datum Dia.
Resistance, IWG
CFM
(in.)
1 Turn
Open
Fully
Closed
Bore (in.) Model
Belt
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
Air
Flow
(CFM)
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
3.0 3.4 3.8 4.2 4.6 5.0 5.4 5.8 6.2 6.6
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
30 HP & Field Supplied Drive Standard 30 HP & Drive Alternate 40 HP & Drive
Available External Static Pressure - IWG
Table X: RPM Selection
Size
(Tons)
Model HP
XY
Max
BHP
30 34.50 1VL51 BK99 1000 1025 1045 1060 1110 1150 N/A
40 46.00 1VL63 BK67 1125 1175 1250 1325 1400 1475 N/A
Motor
Sheave
Blower
Sheave
6 Turns
Open
5 Turns
Open
4 Turns
Open
3 Turns
Open
2 Turns
Open
1 Turn
Open
Fully
Closed
28 Johnson Controls Unitary Products
364985-XIM-B-0508
Altitude/Temperature Correction Factors
Air
Temp.
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
40 1.060 1.022 0.986 0.950 0.916 0.882 0.849 0.818 0.788 0.758 0.729
50 1.039 1.002 0.966 0.931 0.898 0.864 0.832 0.802 0.772 0.743 0.715
60 1.019 0.982 0.948 0.913 0.880 0.848 0.816 0.787 0.757 0.729 0.701
70 1.000 0.964 0.930 0.896 0.864 0.832 0.801 0.772 0.743 0.715 0.688
80 0.982 0.947 0.913 0.880 0.848 0.817 0.787 0.758 0.730 0.702 0.676
90 0.964 0.929 0.897 0.864 0.833 0.802 0.772 0.744 0.716 0.689 0.663
100 0.946 0.912 0.880 0.848 0.817 0.787 0.758 0.730 0.703 0.676 0.651
1.100
1.050
1.000
0.950
0.900
0.850
0.800
Correction Factor
0.750
0.700
0.650
Altitude (Ft.)
Sea Level
1000 ft
2000 ft
3000 ft
4000 ft
5000 ft
6000 ft
7000 ft
8000 ft
9000 ft
10000 ft
0.600
40 50 60 70 80 90 100
Air Temperature (ºF)
Johnson Controls Unitary Products 29
PHASING
e
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 producing a high noise level, the scroll is misphased).
364985-XIM-B-0508
PROCEDURE FOR ADJUSTING BELT TENSION:
Loosen nuts (A) (top and bottom).
1.
Adjust the tension by turning bolt (B).
2.
Never loosen nuts (C) from each other.
3.
Use a belt tension checker to apply a perpendicular force to be one belt at th
4.
midpoint of the span as shown. The deflection force should be applied
until a specific deflection distance of 4mm (5/32") is obtained. To determine
the deflection distance from normal position, use a straight edge from
sheave to sheave as a reference line. The recommended deflection force
is as follows:
SPAN LENGTH
DEFL FORCE
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
These blowers have either 3-speed d ire ct drive m otor s,
or single speed motors equipped with a belt driv e. Be lt
drive units have a variable pitch motor pulley that
allows the blower speed to be adjusted.
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.
(B)
*Never Loosen
(A)
Tension new belts at the max. deflection force recommended for the belt
section. Check the belt tension at least two times during the first 24 hours of
operation. Any re-tensioning should fall between the min. and max.
deflection force values.
5. After adjusting, re-tighten nuts (A).
(C)*
FIGURE 12 - BELT ADJUSTMENT
Start the supply air blower motor. Adjust the resistances in both the supply and the return air duct systems 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.
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
Note the following:
1. The supply air CFM must be within the limitations
shown in the Unit Application Data Table 1.
these holes for sufficient penetration into the air
flow on both sides of the indoor coil.
NOTE: The tubes must be inserted and held in a posi-
tion perpendicular to the air flow so that velocity pressure will not affect the static pressure
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-
readings.
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 deactivated while the test is being run.
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).
Failure to properly adjust the total system air
quantity and static pressure can result in
extensive system damage.
After readings have been obtained, remove the tubes
and reinstall the two 5/16” dot plugs that were removed
in Step 1.
NOTE: De-energize the compressors before taking
any test measurements to assure a dry indoor
coil.
0.5
For heating, the thermostat makes a circuit between
“R” and “W1”. The UCB energizes the compr essor and
condenser fan allowing the unit to run in heating mode.
A time / temperature control operates the defrost cycle.
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 completion of a call for cooling. Heating always takes priority.
COOLING SEQUENCE OF OPERATION
CONTINUOUS BLOWER
By setting the room thermostat fan switch to “ON,” the
supply air blower will operate continuously.
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 energized after any specified delay associated with the
operation.
048
0.4
0.3
0.2
PRESSURE DROP (IWG)
0.1
0
1000 1500 2000 2500 3000
036
060
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.
The call is passed to the unit control board (UCB),
which then determines whether the requested operation is available and, if so, which components to energize.
When energized, the indoor blowe r has a minimum run
time of 30 seconds. Additionally, the indoor blower has
a delay of 10 seconds between operations.
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 energized. 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-energize Y1. If the compressor has satisfied its minimum
run time, the compressor and condenser fan de-energize. 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.
To be available, a compressor must not be locked-out
due to a high or low-pressure swit ch or freezestat trip
and the anti-short cycle delay (ASCD) must have
elapsed.
Johnson Controls Unitary Products 31
364985-XIM-B-0508
ECONOMIZER WITH SINGLE ENTHALPY SENSOR -
When the room thermostat calls for cooling, the low
voltage control circuit from “R” to “G” and “Y1” is completed. 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 controller (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.
Once the thermostat has been satisfied, it will de-energize “Y1”. If the compressor has satisfied its minimum
run time, the compressor and condenser fan are deenergized. Otherwise, the unit operates the cooling
system until the minimum run times for the compressor
has been completed. After the compressor de-energizes, the blower is stopped follow ing the e lapse of the
fan off delay for cooling, and the econo mizer damper
goes to the closed position. If the unit is in continues
fan operation the economizer damper goes to the min.
position.
ECONOMIZER WITH DUAL ENTHALPY SENSORS -
The operation with the dual enthalpy sensors is identical to the single sensor except that a second enthalpy
sensor is mounted in the return air. This retu rn air sensor allows the economizer to choose between outdoor
air and return air, whichever has the lowest enthalpy
value, to provide maximum operating efficiency.
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 mi nimum position but does
not provide power exhaust operation.
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.
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, initiate 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.
Should a high-pressure switch open three times within
two hours of operation, the UCB will lock-out the compressor 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-pressure switch fails to close after the 30-second monitoring phase, the UCB will de-energize the compressor,
initiate the ASCD, and stop the condenser fan.
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.
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 compressor and flash a code (see Table 32).
MOTORIZED OUTDOOR AIR DAMPERS -
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
32 Johnson Controls Unitary Products
FREEZESTAT
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-
364985-XIM-B-0508
ing is still present at the co nclusion of the ASCD, the
UCB will re-energize the compressor.
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).
LOW AMBIENT COOLING
To determine when to operate in low ambient mode,
the UCB has a pair of terminals connected to a temperature-activated switch set at 45ºF. When the lo w ambient 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.
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 minimum run time.
When operating in low ambient mode, the UCB will not
lockout the compressor due to a freezestat trip. However, 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.
trolled. On any fault, the system will be affected by any
safety/preventive action.
The unit control board monitors the temperature limit
switch of the electric heat.
COMPRESSOR PROTECTION
The compressor also has inherent (internal) protection.
If there is an abnormal temper ature rise in a compressor, the protector will open to shut down the compressor. The UCB incorporates features to minimize
compressor wear and damage. An anti-short cycle
delay (ASCD) is utilized to prevent operation of a compressor too soon after its previous run. Additionally, a
minimum run time is imposed any time a compressor is
energized.
The ASCD is initiated on unit start-up and on any compressor reset or lock-out.
FLASH CODES
The UCB will initiate a flash code associated with
errors within the system. Refer to UNIT CONTROL
BOARD FLASH CODES Table 32.
RESET
Remove the call for cooling, by raising thermostat setting higher than the conditioned space temperature.
This resets any pressure or freezestat flash codes.
SAFETY CONTROLS
The unit control board monitors the following inputs for
HEATING SEQUENCE OF OPERATIONS
WITH OR WITHOUT ELECTRIC HEAT
the cooling system:
When the thermostat calls for the first stage of heating,
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).
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
2. A high-pressure switch to protect against exces-
UCB will energize compressor contactor M1.
sive discharge pressures due to a blocked condenser 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
3. A low-pressure switch to protect against loss of
refrigerant charge, (opens at 7 ± 3 psig and resets
at 22 ± 5 psig).
24vac signal is passed through the UCB t o the electric
heat section (if available). The total available kW of
electric heat will be energized on a call for “W2”.
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
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 defrost thermostat (SD ) must be closed. This normally open thermostat is mounted on the liquid line an d
is set to close at 28 ± 4°F.
Once the defrost thermostat closes, the defrost con trol
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.
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 energizes the unit’s optional electric heater. The DC
remains in defrost mode until either
of the following two
conditions is met:
1. The liquid line thermostat is open. It is set to open
at 55 ± 4°F.
2. The maximum defrost run time of 10 minutes is
met.
FORCED DEFROST
The processor on the defrost board is only energized
when the defrost sensor (DS) is closed.
To create a forced defrost:
1. The DS must either be closed or a jumper must be
placed across the DFS terminals on the board.
2. Place a jum p er a c r os s t he te st p i n te rm ina ls on t he
board.
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.
SAFETY CONTROLS
The control circuit includes the following safety controls:
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 automatically. The limit switch operates when a high
temperature condition, caused by inadequate supply air flow occurs, thus shu tting down the heater
and energizing the blower.
TABLE 30: ELECTRIC HEAT LIMIT CONTROL
SETTING
º
VOLTAGE kW TEMPERATURE LIMIT SWITCH
5 1 140
7 1,3 140
10 1,2,3 140
230-1-60
230-3-60
460-3-60
575-3-60
15 2,4,6 140
20
30 1,2,3,4,5,6 150
5 1,2,3 140
7 1,2,3 140
10 1,2,3 150
15 2,4,6 140
20 1,2,3,4,5,6 150
30
7 2,4,6 140
10 2,4,6 140
15 2,4,6 140
20 3 160
30 3 150
10 2,4,6 140
15 2,4,6 140
20 5 160
30 5 150
1,2,3,4,5 140
6 150
1,3,5 160
2,4,6 150
Open Temp
F
The DC will remain in defrost until the jumpers
HEAT ANTICIPATOR SETPOINTS
across the DS and the test pin terminals are
removed.
It is important that the anticipator setp oint be correct.
Too high of a setting will result in longer heat cycles
Once the jumpers are removed, the board then terminates 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
and a greater temperature swing in the conditioned
space. Reducing the value below the co rrect setpoint
will give shorter “ON” cycles and may result in the lowering of the temperature within the conditioned space.
364985-XIM-B-0508
Refer to Table 31 for the required electric heat anticipator setting.
TABLE 31: ELECTRIC HEAT ANTICIPATOR
SETPOINTS
HEATER
KW
5
7 0.024 0.35
10 0.024 0.35
15 0.024 0.35
20 0.024 0.35
30 0.024 0.35
7
10 0.024 0.35
15 0.024 0.35
20 0.024 0.37
30 0.024 0.37
10
15 0.024 0.35
20 0.024 0.37
30 0.024 0.37
VOLTAGE
230-3-60
460-3-60
575-3-60
SETTING, AMPS
TH1 TH2
0.024 0.35
0.024 0.35
0.024 0.35
START-UP (COOLING)
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.
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 information section.
• Check blower drive belt tension.
6. Check the unit supply air (CFM). See “CHECKING
SUPPLY AIR CFM” on page 30.
7. Measure evaporator fan motor's amp draw.
8. Set the room thermostat fan switch to off.
9. Turn unit electrical power off.
3. Compressor will energize after the built-in time
delay (five minutes).
POST START CHECK LIST
1. Verify proper system pressures.
2. Measure the temperature drop across the evaporator coil.
3. Measure the system Amperage draw across all
legs of 3 phase power wires.
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.
TROUBLESHOOTING
COOLING TROUBLESHOOTING GUIDE
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.
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.
Label all wires prior to disconnection when servicing 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.
On calls for cooling, if the com pressors 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).
OPERATING INSTRUCTIONS
1. Turn the thermostat fan switch to the ON position.
If the supply air blower motor does not energize, go
1. Turn unit electrical power on.
2. Set the room thermostat setting to lower than the
room temperature.
Johnson Controls Unitary Products 35
to Step 3.
2. If the blower motor runs with the fan switch in the
ON position but will not run after the compressor
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.
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 co nt actor is pulled in. Check
for loose wiring between the cont actor and the supply air blower motor.
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 protection. Cancel any thermostat calls and set the fan
switch to AUTO. Wait for the internal 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.
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.
7. If 24 volts is not present at M2, check that 24 volts
is present at the UCB supply air blower motor terminal, “FAN”. If 24 volts is present at the FAN,
check for loose wiring between the UCB and M2.
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:
a. Proper operation of the room thermostat (contact
between R and G with the fan switch in the ON position and in the AUTO position during operation calls).
b. Proper wiring between the room thermostat and the
UCB.
c. Loose wiring from the room thermostat to the UCB.
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.
providing free cooling and the compressors will not
immediately operate. If both stages of cooling are
requested simultaneously and the economizer provides free cooling, following a short delay the compressor will be energized unless it is locked out,
unless this option has been disabled through computer communications.
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.
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 internal overload to reset. Test again when cool.
4. If M1 is not pulled in, check for 24 volts at the M1
coil. If 24 volts are present and M 1 is not pu lled in,
replace the contactor.
5. Failing the above, if voltage is supplied at M1, M1
is pulled in, and the compressor still does not operate, replace the compressor.
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.
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. 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
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-pressure 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 terminals, e.g. if LPS1 has opened, there will be a 24volt potential between the LPS1 terminals.
On a call for cooling, the supply air blower motor is
operating but the compressor is not (the room thermostat fan switch is in the “AUTO” position).
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,
1. If installed, check the position of the economizer
press and release the ALARMS button on the UCB.
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 cooling. This will reset any compressor lock outs.
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 compressor 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.
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 terminals 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.
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-NLock plug, and in the wiring from the Mate-N-Lock
plug to the Y1 “ECON” terminal.
13. For units with economizers: If 24 volts is present at
the Y1 “OUT” terminal, check for 24 v olts 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 economizer, 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 th ou gh th e ec on omizer is not providing free cooling. To test, disconnect the Mate-N-Locks and jumper between the
WHITE and YELLOW wires of the UCB’s Mate-NLock plug. If the compressor ener gizes, there is a
fault in the economizer wiring or actuator.
14. The UCB can be programmed to lock out compressor operation during free cooling and in low ambient conditions. These options are not enabled by
default. Local distributors can test the UCB for this
programming.
For units with factory installed economizers, the
UCB is programmed to lock out compressor operation 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.
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.
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.
In some cases, it may be necessary to “zero” the
ASCD for the compressors in order to perform troubleshooting. To reset all ASCDs for one cycle, press and
release the UCB TEST button once.
TABLE 32: UNIT CONTROL BOARD FLASH CODES
Flash Code Description
On Steady
Heart Beat
1 Flash
2 Flashes
3 Flashes
5 Flashes
7 Flashes
9 Flashes
10 Flashes
11 Flashes
13 Flashes
14 Flashes
OFF
1. These flash codes do not represent alarms.
Control Failure - Replace Control
Normal Operation
Not Applicable
Control waiting ASCD
HPS1 - Compressor Lock out
LPS1 - Compressor Lock out
FS1 - Compressor Lock out
Ignition Control Locked Out/
Ignition Control Failure / Limit Switch Trip /
No Jumper Plug in Heat Section
Compressors Locked Out On Low
Outdoor Air Temperature
Compressors Locked Out Because the
Economizer Is Using Free Cooling
Compressor Held Off Due To Low Voltage
EEPROM Storage Failure (Control Failure)
No Power or Control Failure
1
1
1
1
Johnson Controls Unitary Products 37
MAINTENANCE
NORMAL MAINTENANCE
Prior to any of the following maintenance procedures, shut off all electric power to the unit to
prevent personal injury.
364985-XIM-B-0508
Perform all maintenance operations on the
blower motor with electric power disconnected
from the unit. Do not attempt to lubricate bearings with the unit in operation.
FILTERS
Inspect once a month. Replace disposable or clean
permanent type as necessary. DO NOT replace permanent type with disposable. The dimensional size of
the replacement filter must be the same as the
replaced filter.
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.
Damage can occur if the bearings are overlubricated. Use grease sparingly.
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.
If desired, every three years remove both pipe plugs at
each end shell and clean out any hardened grease or
foreign matter. Replace on e 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 ca vity. Replace
the plugs.
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 fitting until grease just begins to show at the seals. Do
not over lubricate. Use any lithium base grease recommended for ball bearing service.
OUTDOOR COIL
Dirt should not be allowed to accumulate on the outdoor coil surface or other parts in the air circuit. Cleaning should be as often as necessary to keep coil clean.
Use a brush, vacuum cleaner attachment, or other su itable means. If water is used to clean coil, be sure electric 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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