Inst Manual DR 36-72
INSTALLATION
MANUAL
CONTENTS
SUNLINE MagnaDRY™
GAS/ELECTRIC SINGLE PACKAGE
AIR CONDITIONERS
DR 036, 048, 060 & 072
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . 4
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REFERENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . 5
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 13
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
START-UP (COOLING) . . . . . . . . . . . . . . . . . . . . 48
START-UP (GAS HEAT). . . . . . . . . . . . . . . . . . . . 49
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . 56
See the following pages for a complete Table of Contents.
NOTES, CAUTIONS AND WARNINGS
The installer should pay particular attention to the words:
NOTE, CAUTION, and WARNING. Notes are intended to
clarify or make the installation easier. Cautions are given
to prevent equipment damage. Warnings are given to
alert installer that personal injury and/or equipment damage may result if installation procedure is not handled
properly.
CAUTION:
READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
170651-YIM-A-1105
170651-YIM-A-1105
TABLE OF CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . 4
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PRODUCT NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
INSTALLATION SAFETY INFORMATION . . . . . . . . . . 13
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
RIGGING AND HANDLING . . . . . . . . . . . . . . . . . . . . . . 15
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CONDENSATE DRAIN . . . . . . . . . . . . . . . . . . . . . . . . . 16
COMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SERVICE ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
POWER AND CONTROL WIRING . . . . . . . . . . . . . . . . 18
OPTIONS/ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . 18
ELECTRIC HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
GAS HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
GAS CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
L.P. UNITS, TANKS AND PIPING . . . . . . . . . . . . . . . . . . 21
VENT AND COMBUSTION AIR HOODS . . . . . . . . . . . . 22
ECONOMIZER/MOTORIZED DAMPER AND RAIN
HOOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
POWER EXHAUST/BAROMETRIC RELIEF DAMPER
AND RAIN HOOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
ECONOMIZER AND POWER EXHAUST DAMPER SET
POINT ADJUSTMENTS AND INFORMATION . . . . . . . 23
MINIMUM POSITION ADJUSTMENT . . . . . . . . . . . . . . . 23
ENTHALPY SET POINT ADJUSTMENT . . . . . . . . . . . . 23
POWER EXHAUST DAMPER SETPOINT (WITH OR
WITHOUT POWER EXHAUST) . . . . . . . . . . . . . . . . . . . 23
INDOOR AIR QUALITY . . . . . . . . . . . . . . . . . . . . . . . . . . 23
PHASING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
SUPPLY AIR BLOWERS . . . . . . . . . . . . . . . . . . . . . . . . 40
CHECKING SUPPLY AIR CFM . . . . . . . . . . . . . . . . . . . 40
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
SEQUENCE OF OPERATIONS OVERVIEW . . . . . . . . 42
COOLING SEQUENCE OF OPERATION . . . . . . . . . . . 42
CONTINUOUS BLOWER . . . . . . . . . . . . . . . . . . . . . . . . 42
INTERMITTENT BLOWER . . . . . . . . . . . . . . . . . . . . . . . 42
NO OUTDOOR AIR OPTIONS . . . . . . . . . . . . . . . . . . . . 42
REHEAT MODE SEQUENCE OF OPERATION . . . . . . 42
STANDARD A/C MODE: INPUT: Y1 ON, Y2 OFF,
HUMIDISTAT OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
REHEAT MODE: INPUT: Y1 ON, Y2 OFF, HUMIDISTAT
CLOSED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
STANDARD A/C MODE: INPUT: Y1 ON, Y2 ON,
2
HUMIDISTAT OPEN OR CLOSED . . . . . . . . . . . . . . . . .
ECONOMIZER WITH SINGLE ENTHALPY SENSOR . .
ECONOMIZER WITH DUAL ENTHALPY SENSORS . .
ECONOMIZER (SINGLE OR DUAL) WITH POWER
EXHAUST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MOTORIZED OUTDOOR AIR DAMPERS . . . . . . . . . . .
42
42
43
43
43
COOLING OPERATION ERRORS . . . . . . . . . . . . . . . . 43
HIGH-PRESSURE LIMIT SWITCH . . . . . . . . . . . . . . . . .
LOW-PRESSURE LIMIT SWITCH . . . . . . . . . . . . . . . . .
FREEZESTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOW AMBIENT COOLING . . . . . . . . . . . . . . . . . . . . . . .
43
43
43
44
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPRESSOR PROTECTION . . . . . . . . . . . . . . . . . .
FLASH CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRIC HEATING SEQUENCE OF
OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . .
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEAT ANTICIPATOR SETPOINTS . . . . . . . . . . . . . . .
GAS HEATING SEQUENCE OF OPERATIONS
(SINGLE STAGE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS HEATING SEQUENCE OF OPERATION
(2 STAGE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS HEATING OPERATION ERRORS . . . . . . . . . . . .
44
44
44
44
44
45
45
45
45
46
47
TEMPERATURE LIMIT . . . . . . . . . . . . . . . . . . . . . . . . . . 47
GAS VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . .
FLASH CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RESETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEAT ANTICIPATOR SETPOINTS . . . . . . . . . . . . . . .
47
48
48
48
START-UP (COOLING) . . . . . . . . . . . . . . . . . . . . . . . . . .
PRESTART CHECK LIST . . . . . . . . . . . . . . . . . . . . . . .
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . .
POST START CHECK LIST . . . . . . . . . . . . . . . . . . . . .
SHUT DOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48
48
48
48
49
START-UP (GAS HEAT) . . . . . . . . . . . . . . . . . . . . . . . . . 49
PRE-START CHECK LIST . . . . . . . . . . . . . . . . . . . . . . 49
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . 49
TO LIGHT PILOT AND MAIN BURNERS: . . . . . . . . . . . 49
TO SHUT DOWN: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
POST-START CHECK LIST (GAS) . . . . . . . . . . . . . . . 49
MANIFOLD GAS PRESSURE ADJUSTMENT . . . . . . . 50
PILOT CHECKOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
BURNER INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . 50
BURNER AIR SHUTTER ADJUSTMENT . . . . . . . . . . . 51
CHECKING GAS INPUT . . . . . . . . . . . . . . . . . . . . . . . . 51
NATURAL GAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
ADJUSTMENT OF TEMPERATURE RISE . . . . . . . . . . 52
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING TROUBLESHOOTING GUIDE . . . . . . . . . .
GAS HEAT TROUBLESHOOTING GUIDE . . . . . . . . . .
UNIT FLASH CODES . . . . . . . . . . . . . . . . . . . . . . . . . .
56
56
58
61
Unitary Products Group
170651-YIM-A-1105
LIST OF FIGURES
Fig. #
Pg. #
1
RECOMMENDED DRAIN PIPING . . . . . . . . . . . . . . 16
2
COMPRESSOR RESTRAINING BRACKET . . . . . . 16
3
TYPICAL FIELD POWER & CONTROL WIRING . . . 17
4
EXTERNAL SUPPLY CONNECTION EXTERNAL
SHUT-OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5
BOTTOM SUPPLY CONNECTION EXTERNAL
SHUT-OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6
VENT AND COMBUSTION AIR HOOD . . . . . . . . . . 22
7
ENTHALPY SETPOINT ADJUSTMENT . . . . . . . . . . 24
8
HONEYWELL ECONOMIZER CONTROL W7212 . . 24
9
FOUR AND SIX POINT LOADING . . . . . . . . . . . . . . 25
10
UNIT DIMENSIONS (3 - 6 TON COOLING ONLY/
ELECTRIC HEAT) FRONT VIEW . . . . . . . . . . . . . . . 31
11
UNIT DIMENSIONS (3 - 6 TON COOLING/GAS HEAT)
FRONT VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
12
UNIT WITH ECONOMIZER RAINHOOD . . . . . . . . . 32
Fig. #
Pg. #
13
UNIT WITH FIXED OUTDOOR AIR/MOTORIZED
DAMPER RAINHOOD . . . . . . . . . . . . . . . . . . . . . . . 33
14
UNIT DIMENSIONS (REAR VIEW) . . . . . . . . . . . . . 33
15
DISCONNECT/BLOWER ACCESS LOCATION . . . 34
16
BELT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . 41
17
PRESSURE DROP ACROSS COIL . . . . . . . . . . . . . 41
18
GAS VALVE PIPING . . . . . . . . . . . . . . . . . . . . . . . . 46
19
TYPICAL SINGLE STAGE GAS VALVES . . . . . . . . 49
20
TYPICAL 2 STAGE GAS VALVES . . . . . . . . . . . . . . 50
21
PROPER FLAME ADJUSTMENT . . . . . . . . . . . . . . 50
22
TYPICAL FLAME APPEARANCE . . . . . . . . . . . . . . 51
23
DR036 CHARGING CURVES . . . . . . . . . . . . . . . . . 52
24
DR048 CHARGING CURVES . . . . . . . . . . . . . . . . . 53
25
DR060 CHARGING CURVES . . . . . . . . . . . . . . . . . 54
26
DR072 CHARGING CURVES . . . . . . . . . . . . . . . . . 55
LIST OF TABLES
Tbl. #
Pg. #
1
UNIT APPLICATION DATA (DR) . . . . . . . . . . . . . . . 14
2
CONTROL WIRE SIZES . . . . . . . . . . . . . . . . . . . . . . 18
3
4
Tbl. #
Pg. #
21
DR036 BLOWER PERFORMANCE W/FIELD
INSTALLED BLOWER SHEAVE - DOWN FLOW. . . 36
ELECTRIC HEATER CFM LIMITATIONS . . . . . . . . 19
22
DR048 BLOWER PERFORMANCE - SIDE FLOW. . 37
GAS HEAT APPLICATION DATA . . . . . . . . . . . . . . 19
23
DR048 BLOWER PERFORMANCE W/FIELD
INSTALLED BLOWER SHEAVE - SIDE FLOW . . . . 37
24
DR048 BLOWER PERFORMANCE - DOWN
FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
25
DR048 BLOWER PERFORMANCE W/FIELD
INSTALLED BLOWER SHEAVE - DOWN FLOW. . . 38
26
DR060 & 072 BLOWER PERFORMANCE - SIDE
FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5
GAS PIPE SIZING . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6
CENTER OF GRAVITY (ALL MODELS) . . . . . . . . . 25
7
DR 4 AND 6 POINT LOADS WEIGHT
DISTRIBUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8
DR PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . 26
9
DR OPERATING WEIGHTS (LBS.) . . . . . . . . . . . . . 26
10
ELECTRICAL DATA - DR036 AND DR048 W/O
POWERED CONVENIENCE OUTLET . . . . . . . . . . . 27
27
DR060 & 072 BLOWER PERFORMANCE - DOWN
FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
11
ELECTRICAL DATA - DR060 AND DR072 W/O
POWERED CONVENIENCE OUTLET . . . . . . . . . . . 28
28
BELT DRIVE BLOWER MOTOR AND DRIVE
DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
12
ELECTRICAL DATA - DR036 AND DR048 WITH
POWERED CONVENIENCE OUTLET . . . . . . . . . . . 29
29
STATIC RESISTANCES . . . . . . . . . . . . . . . . . . . . . 40
30
ELECTRIC HEAT LIMIT CONTROL SETTING . . . . 45
13
ELECTRICAL DATA - DR060 AND DR072 WITH
POWERED CONVENIENCE OUTLET . . . . . . . . . . . 30
31
ELECTRIC HEAT ANTICIPATOR SETPOINTS . . . . 45
14
ELECTRIC HEAT CORRECTION FACTORS . . . . . 31
32
SINGLE STAGE GAS HEAT LIMIT CONTROL
SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
33
2 STAGE GAS HEAT LIMIT CONTROL SETTING . 48
34
GAS HEAT ANTICIPATOR SETPOINTS . . . . . . . . . 48
15
VOLTAGE LIMITATIONS . . . . . . . . . . . . . . . . . . . . . 31
16
UTILITIES ENTRY . . . . . . . . . . . . . . . . . . . . . . . . . . 34
17
MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . 34
18
DR036 BLOWER PERFORMANCE - SIDE FLOW . . 35
19
DR036 BLOWER PERFORMANCE W/FIELD
INSTALLED BLOWER SHEAVE- SIDE FLOW . . . . . 35
20
DR036 BLOWER PERFORMANCE - DOWN
FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Unitary Products Group
35
GAS RATE - CUBIC FEET PER HOUR . . . . . . . . . . 51
36
UNIT CONTROL BOARD FLASH CODES . . . . . . . 61
37
IGNITION CONTROL BOARD FLASH CODES . . . . 61
3
170651-YIM-A-1105
GENERAL
YORK Model DR units are either single package cooling units equipped with optional factory installed electric heaters, or single package gas-fired central heating
furnaces with cooling unit. Both 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 economizer or motorized
damper option only) at the point of installation.
The supplemental electric heaters have nickel-chrome
elements and utilize single point power connection.
The gas-fired heaters have aluminized-steel (or
optional stainless steel) tubular heat exchangers. The
units have spark ignition with proven pilot. All gas heaters are shipped from the factory equipped for natural
gas use, but can be field converted to L.P./ Propane
with Kit Model # 1NP0440 for single stage and Kit
Model # 1NP0485 for 2 stage.
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.
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury, death, or property damage.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance.
- WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach the gas supplier, call
the fire department.
- Installation and service must be performed by
a qualified installer, service agency or the
gas supplier.
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.
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.
4
Unitary Products Group
170651-YIM-A-1105
REFERENCE
Additional information is available in the following reference forms:
•
Technical Guide - DR036-072, 036-21685-002
•
General Installation - DR036-072, 170651
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.
RENEWAL PARTS
Contact your local York® parts distribution center for
authorized replacement parts.
APPROVALS
Design listed by CSA as follows:
•
For use as a cooling unit only with or without
optional electric heat.
•
For use as a forced air furnace with cooling
unit
•
For outdoor installation only.
•
For installation on combustible material.
•
For use with natural gas or propane gas.
Unitary Products Group
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.
5
170651-YIM-A-1105
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Unitary Products Group
170651-YIM-A-1105
3-6T Sunline Model Number Nomenclature
Standard Cabinet
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
AN
AS
CA
CB
CC
CD
CE
CF
CG
CH
CJ
CK
CL
CM
CN
CP
CQ
CR
CS
CT
CU
CV
CW
CX
JA
JB
JC
JD
JE
JF
JG
JH
JJ
JK
JL
JM
JN
JP
JQ
JR
None
Phase Monitor
Coil Guard
Dirty Filter Switch
Phase Monitor & Coil Guard
Phase Monitor & Dirty Filter Switch
Coil Guard & Dirty Filter Switch
Phase Monitor, Coil Guard, & Dirty Filter Switch
SS Drain Pan
SS Drain Pan & Phase Monitor
SS Drain Pan & Coil Guard
SS Drain Pan & Dirty Filter Switch
SS Drain Pan, Phase Monitor, Coil Guard & Dirty Filter Switch
Bottom Drain Connection
CPC Controller with Dirty Filter Switch & Air Proving Switch
CPC Controller, DFS, APS & Phase Monitor
CPC Controller, DFS, APS & Coil Guard
CPC Controller, DFS, APS, Phase Monitor, & Coil Guard
CPC Controller, DFS, APS & Technicoat Cond. Coil
CPC Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor
CPC Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard
CPC Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard
CPC Controller, DFS, APS & Technicoat Evap. Coil
CPC Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor
CPC Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard
CPC Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard
CPC Controller, DFS, APS & Technicoat Evap. & Cond Coils
CPC Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor
CPC Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard
CPC Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard
CPC Controller, DFS, APS, SS Drain Pan
CPC Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard
CPC Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils
CPC Controller, DFS, APS, SS Drain Pan, & Technicoat Evap Coil
CPC Controller, DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils
CPC Controller, DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
Johnson UNT Controller with Dirty Filter Switch & Air Proving Switch
Johnson UNT Controller, DFS, APS & Phase Monitor
Johnson UNT Controller, DFS, APS & Coil Guard
Johnson UNT Controller, DFS, APS, Phase Monitor, & Coil Guard
Johnson UNT Controller, DFS, APS & Technicoat Cond. Coil
Johnson UNT Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor
Johnson UNT Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard
Johnson UNT Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard
Johnson UNT Controller, DFS, APS & Technicoat Evap. Coil
Johnson UNT Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor
Johnson UNT Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard
Johnson UNT Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard
Johnson UNT Controller, DFS, APS & Technicoat Evap. & Cond Coils
Johnson UNT Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor
Johnson UNT Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard
Johnson UNT Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard
Unitary Products Group
7
170651-YIM-A-1105
Standard Cabinet
JS
JT
JU
JV
JW
JX
HA
HB
HC
HD
HE
HF
HG
HH
HJ
HK
HL
HM
HN
HP
HQ
HR
HS
HT
HU
HV
HW
HX
NA
NB
NC
ND
NE
NF
NG
NH
NJ
NK
NL
NM
NN
NP
NQ
NR
NS
NT
NU
NV
NW
NX
TA
TB
TC
TD
TE
8
Johnson UNT Controller, DFS, APS, SS Drain Pan
Johnson UNT Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard
Johnson UNT Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils
Johnson UNT Controller, DFS, APS, SS Drain Pan, & Technicoat Evap Coil
Johnson UNT Controller, DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils
Johnson UNT Controller, DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
Honeywell Excel 10 Controller with Dirty Filter Switch & Air Proving Switch
Honeywell Excel 10 Controller, DFS, APS & Phase Monitor
Honeywell Excel 10 Controller, DFS, APS & Coil Guard
Honeywell Excel 10 Controller, DFS, APS, Phase Monitor, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS & Technicoat Cond. Coil
Honeywell Excel 10 Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor
Honeywell Excel 10 Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS & Technicoat Evap. Coil
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS & Technicoat Evap. & Cond Coils
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS, SS Drain Pan
Honeywell Excel 10 Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils
Honeywell Excel 10 Controller,DFS, APS, SS Drain Pan, & Technicoat Evap Coil
Honeywell Excel 10 Controller,DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils
Honeywell Excel 10 Controller,DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
Novar ETC-3 Controller with Dirty Filter Switch & Air Proving Switch
Novar ETC-3 Controller, DFS, APS & Phase Monitor
Novar ETC-3 Controller, DFS, APS & Coil Guard
Novar ETC-3 Controller, DFS, APS, Phase Monitor, & Coil Guard
Novar ETC-3 Controller, DFS, APS & Technicoat Cond. Coil
Novar ETC-3 Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor
Novar ETC-3 Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard
Novar ETC-3 Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard
Novar ETC-3 Controller, DFS, APS & Technicoat Evap. Coil
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard
Novar ETC-3 Controller, DFS, APS & Technicoat Evap. & Cond Coils
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard
Novar ETC-3 Controller, DFS, APS, SS Drain Pan
Novar ETC-3 Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard
Novar ETC-3 Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils
Novar ETC-3 Controller, DFS, APS, SS Drain Pan, & Technicoat Evap Coil
Novar ETC-3, DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils
Novar ETC-3 Controller, DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
Technicoat Condenser Coil
Technicoat Condenser Coil & Phase Monitor
Technicoat Condenser Coil & Coil Guard
Technicoat Condenser Coil & Dirty Filter Switch
Technicoat Condenser Coil, Phase Monitor, & Coil Guard
Unitary Products Group
170651-YIM-A-1105
Standard Cabinet
TF
TG
TH
TJ
TK
TL
TM
TN
TP
TQ
TR
TS
TT
TU
TV
TW
TX
TY
TZ
T1
T3
T4
T6
T7
T9
LA
LB
LC
LD
LE
LF
LG
LH
LJ
LK
LL
LM
LN
LP
LQ
LR
LS
LT
LU
LV
LW
LX
WA
WB
WC
WD
WE
WF
WG
Technicoat Condenser Coil, Phase Monitor, & Dirty Filter Switch
Technicoat Condenser Coil, Coil Guard, & Dirty Filter Switch
Technicoat Condenser Coil, Phase Monitor, Coil Guard, & Dirty Filter Switch
Technicoat Evaporator Coil
Technicoat Evaporator Coil & Phase Monitor
Technicoat Evaporator Coil & Coil Guard
Technicoat Evaporator Coil & Dirty Filter Switch
Technicoat Evaporator Coil, Phase Monitor, & Coil Guard
Technicoat Evaporator Coil, Phase Monitor, & Dirty Filter Switch
Technicoat Evaporator Coil, Coil Guard, & Dirty Filter Switch
Technicoat Evaporator Coil, Phase Monitor, Coil Guard, & Dirty Filter Switch
Technicoat Evaporator & Condenser Coils
Technicoat Evaporator & Condenser Coils & Phase Monitor
Technicoat Evaporator & Condenser Coils & Coil Guard
Technicoat Evaporator & Condenser Coils & Dirty Filter Switch
Technicoat Evaporator & Condenser Coils, Phase Monitor, & Coil Guard
Technicoat Evaporator & Condenser Coils, Phase Monitor, & Dirty Filter Switch
Technicoat Evaporator & Condenser Coils, Coil Guard, & Dirty Filter Switch
Technicoat Evaporator & Condenser Coils, Phase Monitor, Coil Guard, & Dirty Filter Switch
Technicoat Condenser & SS Drain Pan
Technicoat Condenser Coil, SS Drain Pan, Phase Monitor, Coil Guard, & Dirty Filter Switch
Technicoat Evaporator & SS Drain Pan
Technicoat Evaporator Coil, SS Drain Pan, Phase Monitor, Coil Guard, & Dirty Filter Switch
Technicoat Evaporator & Condenser Coils & SS Drain Pan
Technicoat Evaporator & Condenser Coils, SS Drain Pan, Phase Monitor, Coil Guard, & Dirty Filter Switch
Simplicity Intelli-Comfort Controller
Simplicity Intelli-Comfort Controller, & Phase Monitor
Simplicity Intelli-Comfort Controller, & Coil Guard
Simplicity Intelli-Comfort Controller, Phase Monitor, & Coil Guard
Simplicity Intelli-Comfort Controller, & Technicoat Cond. Coil
Simplicity Intelli-Comfort Controller, Technicoat Cond. Coil, & Phase Monitor
Simplicity Intelli-Comfort Controller, Technicoat Cond. Coil, & Coil Guard
Simplicity Intelli-Comfort Controller, Technicoat Cond. Coil, Phase Monitor, & Coil Guard
Simplicity Intelli-Comfort Controller, & Technicoat Evap. Coil
Simplicity Intelli-Comfort Controller, Technicoat Evap. Coil, & Phase Monitor
Simplicity Intelli-Comfort Controller, Technicoat Evap. Coil, & Coil Guard
Simplicity Intelli-Comfort Controller, Technicoat Evap. Coil, Phase Monitor, & Coil Guard
Simplicity Intelli-Comfort Controller, & Technicoat Evap. & Cond Coils
Simplicity Intelli-Comfort Controller, Technicoat Evap. & Cond Coils, & Phase Monitor
Simplicity Intelli-Comfort Controller, Technicoat Evap. & Cond Coils, & Coil Guard
Simplicity Intelli-Comfort Controller, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard
Simplicity Intelli-Comfort Controller, SS Drain Pan
Simplicity Intelli-Comfort Controller, SS Drain Pan, Phase Monitor, & Coil Guard
Simplicity Intelli-Comfort Controller, SS Drain Pan, & Technicoat Cond Coils
Simplicity Intelli-Comfort Controller, SS Drain Pan, & Technicoat Evap Coil
Simplicity Intelli-Comfort Controller, SS Drain Pan, & Technicoat Evap and Cond Coils
Simplicity Intelli-Comfort Controller, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
Intelli-Comfort w/Mod Link Controller
Intelli-Comfort w/Mod Link Controller, & Phase Monitor
Intelli-Comfort w/Mod Link Controller, & Coil Guard
Intelli-Comfort w/Mod Link Controller, Phase Monitor, & Coil Guard
Intelli-Comfort w/Mod Link Controller, & Technicoat Cond. Coil
Intelli-Comfort w/Mod Link Controller, Technicoat Cond. Coil, & Phase Monitor
Intelli-Comfort w/Mod Link Controller, Technicoat Cond. Coil, & Coil Guard
Unitary Products Group
9
170651-YIM-A-1105
Standard Cabinet
WH
WJ
WK
WL
WM
WN
WP
WQ
WR
WS
WT
WU
WV
WW
WX
Intelli-Comfort w/Mod Link Controller, Technicoat Cond. Coil, Phase Monitor, & Coil Guard
Intelli-Comfort w/Mod Link Controller, & Technicoat Evap. Coil
Intelli-Comfort w/Mod Link Controller, Technicoat Evap. Coil, & Phase Monitor
Intelli-Comfort w/Mod Link Controller, Technicoat Evap. Coil, & Coil Guard
Intelli-Comfort w/Mod Link Controller, Technicoat Evap. Coil, Phase Monitor, & Coil Guard
Intelli-Comfort w/Mod Link Controller, & Technicoat Evap. & Cond Coils
Intelli-Comfort w/Mod Link Controller, Technicoat Evap. & Cond Coils, & Phase Monitor
Intelli-Comfort w/Mod Link Controller, Technicoat Evap. & Cond Coils, & Coil Guard
Intelli-Comfort w/Mod Link Controller, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard
Intelli-Comfort w/Mod Link Controller, SS Drain Pan
Intelli-Comfort w/Mod Link Controller, SS Drain Pan, Phase Monitor, & Coil Guard
Intelli-Comfort w/Mod Link Controller, SS Drain Pan, & Technicoat Cond Coils
Intelli-Comfort w/Mod Link Controller, SS Drain Pan, & Technicoat Evap Coil
Intelli-Comfort w/Mod Link Controller, SS Drain Pan, & Technicoat Evap and Cond Coils
Intelli-Comfort w/Mod Link Controller, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
Hinged Filter Door & Toolless Access Cabinet
BA
BB
BC
BD
BE
BF
BG
BH
BJ
BK
BL
BM
BN
BS
DA
DB
DC
DD
DE
DF
DG
DH
DJ
DK
DL
DM
DN
DP
DQ
DR
DS
DT
DU
DV
DW
DX
EA
10
Hinged Filter Door & Toolless Access Panels
Phase Monitor, Hinged Filter Door & Toolless Access Panels
Coil Guard, Hinged Filter Door & Toolless Access Panels
Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
Phase Monitor & Coil Guard, Hinged Filter Door & Toolless Access Panels
Phase Monitor & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
Coil Guard & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
Phase Monitor, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
SS Drain Pan & Hinged Filter Door & Toolless Access Panels
SS Drain Pan & Phase Monitor, Hinged Filter Door & Toolless Access Panels
SS Drain Pan & Coil Guard, Hinged Filter Door & Toolless Access Panels
SS Drain Pan & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
SS Drain Pan & Phase Monitor & Coil Guard, Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
Bottom Drain Connection, Hinged Filter Door & Toolless Access Panels
CPC Controller with Dirty Filter Switch & Air Proving Switch, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS & Phase Monitor, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS & Technicoat Cond. Coil, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS & Technicoat Evap. Coil, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS & Technicoat Evap. & Cond Coils, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, SS Drain Pan Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, SS Drain Pan, & Technicoat Evap Coil Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils Hinged Filter Door & Toolless Access Panels
CPC Controller, DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils Hinged Filter Door & Toolless
Access Panels
Johnson UNT Controller with Dirty Filter Switch & Air Proving Switch, Hinged Filter Door & Toolless Access Panels
Unitary Products Group
170651-YIM-A-1105
Hinged Filter Door & Toolless Access Cabinet
EB
EC
ED
EE
EF
EG
EH
EJ
EK
EL
EM
EN
EP
EQ
ER
ES
ET
EU
EV
EW
EX
GA
GB
GC
GD
GE
GF
GG
GH
GJ
GK
GL
GM
GN
GP
GQ
GR
GS
GT
GU
GV
GW
GX
PA
PB
PC
PD
PE
Johnson UNT Controller, DFS, APS & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS & Coil Guard, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS & Technicoat Cond. Coil, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS & Technicoat Evap. Coil, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS & Technicoat Evap. & Cond Coils, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard, Hinged Filter Door & Toolless Access
Panels
Johnson UNT Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard, Hinged Filter Door &
Toolless Access Panels
Johnson UNT Controller, DFS, APS, SS Drain Pan Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, SS Drain Pan, & Technicoat Evap Coil Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils Hinged Filter Door & Toolless Access Panels
Johnson UNT Controller, DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils Hinged Filter Door &
Toolless Access Panels
Honeywell Excel 10 Controller with Dirty Filter Switch & Air Proving Switch, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS & Coil Guard, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS & Technicoat Cond. Coil, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access
Panels
Honeywell Excel 10 Controller, DFS, APS & Technicoat Evap. Coil, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access
Panels
Honeywell Excel 10 Controller, DFS, APS & Technicoat Evap. & Cond Coils, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor, Hinged Filter Door & Toolless Access
Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Honeywell Excel 10 Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless
Access Panels
Honeywell Excel 10 Controller, DFS, APS, SS Drain Pan
Honeywell Excel 10 Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard
Honeywell Excel 10 Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils
Honeywell Excel 10 Controller,DFS, APS, SS Drain Pan, & Technicoat Evap Coil
Honeywell Excel 10 Controller,DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils
Honeywell Excel 10 Controller,DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
Novar ETC-3 Controller with Dirty Filter Switch & Air Proving Switch, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS & Coil Guard, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS & Technicoat Cond. Coil, Hinged Filter Door & Toolless Access Panels
Unitary Products Group
11
170651-YIM-A-1105
Hinged Filter Door & Toolless Access Cabinet
PF
PG
PH
PJ
PK
PL
PM
PN
PP
PQ
PR
Novar ETC-3 Controller, DFS, APS, Technicoat Cond. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Cond. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Cond. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS & Technicoat Evap. Coil, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS & Technicoat Evap. & Cond Coils, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. & Cond Coils, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Novar ETC-3 Controller, DFS, APS, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access
Panels
PS Novar ETC-3 Controller, DFS, APS, SS Drain Pan
PT Novar ETC-3 Controller, DFS, APS, SS Drain Pan, Phase Monitor, & Coil Guard
PU Novar ETC-3 Controller, DFS, APS, SS Drain Pan, & Technicoat Cond Coils
PV Novar ETC-3 Controller, DFS, APS, SS Drain Pan, & Technicoat Evap Coil
PW Novar ETC-3, DFS, APS, SS Drain Pan, & Technicoat Evap and Cond Coils
PX Novar ETC-3 Controller, DFS, APS, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils
UA Technicoat Condenser Coil, Hinged Filter Door & Toolless Access Panels
UB Technicoat Condenser Coil & Phase Monitor, Hinged Filter Door & Toolless Access Panels
UC Technicoat Condenser Coil & Coil Guard, Hinged Filter Door & Toolless Access Panels
UD Technicoat Condenser Coil & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UE Technicoat Condenser Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
UF Technicoat Condenser Coil, Phase Monitor, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UG Technicoat Condenser Coil, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UH Technicoat Condenser Coil, Phase Monitor, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UJ Technicoat Evaporator Coil, Hinged Filter Door & Toolless Access Panels
UK Technicoat Evaporator Coil & Phase Monitor, Hinged Filter Door & Toolless Access Panels
UL Technicoat Evaporator Coil & Coil Guard, Hinged Filter Door & Toolless Access Panels
UM Technicoat Evaporator Coil & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UN Technicoat Evaporator Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
UP Technicoat Evaporator Coil, Phase Monitor, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UQ Technicoat Evaporator Coil, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UR Technicoat Evaporator Coil, Phase Monitor, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
US Technicoat Evaporator & Condenser Coils, Hinged Filter Door & Toolless Access Panels
UT Technicoat Evaporator & Condenser Coils & Phase Monitor, Hinged Filter Door & Toolless Access Panels
UU Technicoat Evaporator & Condenser Coils & Coil Guard, Hinged Filter Door & Toolless Access Panels
UV Technicoat Evaporator & Condenser Coils & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UW Technicoat Evaporator & Condenser Coils, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
UX Technicoat Evaporator & Condenser Coils, Phase Monitor, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UY Technicoat Evaporator & Condenser Coils, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
UZ Technicoat Evaporator & Condenser Coils, Phase Monitor, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
U1 Technicoat Condenser & SS Drain Pan, Hinged Filter Door & Toolless Access Panels
U3 Technicoat Condenser Coil, SS Drain Pan, Phase Monitor, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
U4 Technicoat Evaporator & SS Drain Pan, Hinged Filter Door & Toolless Access Panels
U6 Technicoat Evaporator Coil, SS Drain Pan, Phase Monitor, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless Access Panels
U7 Technicoat Evaporator & Condenser Coils & SS Drain Pan, Hinged Filter Door & Toolless Access Panels
U9 Technicoat Evaporator & Condenser Coils, SS Drain Pan, Phase Monitor, Coil Guard, & Dirty Filter Switch, Hinged Filter Door & Toolless
Access Panels
QA Simplicity Intelli-Comfort Controller with Hinged Filter Door & Toolless Access Panels
QB Simplicity Intelli-Comfort Controller, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
QC Simplicity Intelli-Comfort Controller, & Coil Guard, Hinged Filter Door & Toolless Access Panels
QD Simplicity Intelli-Comfort Controller, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
QE Simplicity Intelli-Comfort Controller, & Technicoat Cond. Coil, Hinged Filter Door & Toolless Access Panels
QF Simplicity Intelli-Comfort Controller, Technicoat Cond. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
12
Unitary Products Group
170651-YIM-A-1105
Hinged Filter Door & Toolless Access Cabinet
QG
QH
QJ
QK
QL
QM
QN
QP
QQ
QR
QS
QT
QU
QV
QW
QX
Simplicity Intelli-Comfort Controller, Technicoat Cond. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, Technicoat Cond. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access
Simplicity Intelli-Comfort Controller, & Technicoat Evap. Coil, Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, Technicoat Evap. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, Technicoat Evap. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, Technicoat Evap. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access
Simplicity Intelli-Comfort Controller, & Technicoat Evap. & Cond Coils, Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, Technicoat Evap. & Cond Coils, & Phase Monitor, Hinged Filter Door & Toolless Access Pan
Simplicity Intelli-Comfort Controller, Technicoat Evap. & Cond Coils, & Coil Guard, Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolles
Simplicity Intelli-Comfort Controller, SS Drain Pan Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, SS Drain Pan, Phase Monitor, & Coil Guard Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, SS Drain Pan, & Technicoat Cond Coils Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, SS Drain Pan, & Technicoat Evap Coil Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, SS Drain Pan, & Technicoat Evap and Cond Coils Hinged Filter Door & Toolless Access Panels
Simplicity Intelli-Comfort Controller, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils Hinged Filter Door &
Toolless Access Panels
XA Intelli-Comfort w/Mod Link Controller, Hinged Filter Door & Toolless Access Panels
XB Intelli-Comfort w/Mod Link Controller, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
XC Intelli-Comfort w/Mod Link Controller, & Coil Guard, Hinged Filter Door & Toolless Access Panels
XD Intelli-Comfort w/Mod Link Controller, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access Panels
XE Intelli-Comfort w/Mod Link Controller, & Technicoat Cond. Coil, Hinged Filter Door & Toolless Access Panels
XF Intelli-Comfort w/Mod Link Controller, Technicoat Cond. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
XG Intelli-Comfort w/Mod Link Controller, Technicoat Cond. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
XH Intelli-Comfort w/Mod Link Controller, Technicoat Cond. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access
XJ Intelli-Comfort w/Mod Link Controller, & Technicoat Evap. Coil, Hinged Filter Door & Toolless Access Panels
XK Intelli-Comfort w/Mod Link Controller, Technicoat Evap. Coil, & Phase Monitor, Hinged Filter Door & Toolless Access Panels
XL Intelli-Comfort w/Mod Link Controller, Technicoat Evap. Coil, & Coil Guard, Hinged Filter Door & Toolless Access Panels
XM Intelli-Comfort w/Mod Link Controller, Technicoat Evap. Coil, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolless Access
XN Intelli-Comfort w/Mod Link Controller, & Technicoat Evap. & Cond Coils, Hinged Filter Door & Toolless Access Panels
XP Intelli-Comfort w/Mod Link Controller, Technicoat Evap. & Cond Coils, & Phase Monitor, Hinged Filter Door & Toolless Access Pan
XQ Intelli-Comfort w/Mod Link Controller, Technicoat Evap. & Cond Coils, & Coil Guard, Hinged Filter Door & Toolless Access Panels
XR Intelli-Comfort w/Mod Link Controller, Technicoat Evap. & Cond Coils, Phase Monitor, & Coil Guard, Hinged Filter Door & Toolles
XS Intelli-Comfort w/Mod Link Controller, SS Drain Pan Hinged Filter Door & Toolless Access Panels
XT Intelli-Comfort w/Mod Link Controller, SS Drain Pan, Phase Monitor, & Coil Guard Hinged Filter Door & Toolless Access Panels
XU Intelli-Comfort w/Mod Link Controller, SS Drain Pan, & Technicoat Cond Coils Hinged Filter Door & Toolless Access Panels
XV Intelli-Comfort w/Mod Link Controller, SS Drain Pan, & Technicoat Evap Coil Hinged Filter Door & Toolless Access Panels
XW Intelli-Comfort w/Mod Link Controller, SS Drain Pan, & Technicoat Evap and Cond Coils Hinged Filter Door & Toolless Access Panels
XX Intelli-Comfort w/Mod Link Controller, SS Drain Pan, Phase Monitor, Coil Guard, & Technicoat Evap and Cond Coils Hinged Filter Door &
Toolless Access Panels
INSTALLATION
INSTALLATION SAFETY INFORMATION:
3. Never test for gas leaks with an open flame. Use
commercially available soap solution made specifically for the detection of leaks when checking all
connections.
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.
4. Always install furnace to operate within the furnace's intended temperature-rise range with the
duct system and within the allowable external static
pressure range, as specified on the unit name/rating plate.
1. Refer to the furnace rating plate for the approved
type of gas for this furnace.
5. This equipment is not to be used for temporary
heating or cooling of buildings or structures under
construction.
2. Install this furnace only in a location and position
as specified on page 14 of these instructions.
Unitary Products Group
13
170651-YIM-A-1105
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warning exactly
could result in serious injury, death or property
damage.
Never test for gas leaks with an open flame.
use a commercially available soap solution
made specifically for the detection of leaks to
check all connections. A fire or explosion may
result causing property damage, personal
injury or loss of life.
•
Gas-Fired Central Furnace Standard ANSI
Z21.47a.
•
Local gas utility requirements.
In Canada:
•
Current Canadian Electrical Code C22.1.
•
Current Gas Installation Codes CSA-B149.1.
•
Local plumbing and waste water codes.
•
Other applicable local codes.
Refer to the Unit Application Data Table 1 and to the
Gas Heat Application Data Table 4.
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.
•
National Fuel Gas Code Z223.1.
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).
TABLE 1: UNIT APPLICATION DATA (DR)
UNIT MODEL NUMBER
Voltage Variation,
Min. / Max.1
036
187 / 252
460
432 / 504
575
540 / 630
Supply Air CFM, Nom.
1.
1200
1600
Wet Bulb Temperature (ºF) of Air on Evaporator Coil,
Min. / Max
57 / 72
Dry Bulb Temperature (ºF) of Air on Condenser Coil,
Min. / Max.
0 / 125
060
072
2000
2400
Utilization range “A” in accordance with ARI Standard 110.
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.
14
048
208/230
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
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.
Unitary Products Group
170651-YIM-A-1105
Excessive exposure of this furnace to contaminated combustion air may result in equipment
damage or personal injury. Typical contaminates include: permanent wave solutions, chlorinated waxes and cleaners, chlorine based
swimming pool chemicals, water softening
chemicals, carbon tetrachloride, Halogen type
refrigerants, cleaning solvents (e.g. perchloroethylene), printing inks, paint removers, varnishes, hydrochloric acid, cements and glues,
antistatic fabric softeners for clothes dryers,
masonry acid washing materials.
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.
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 9 for unit weights and to the Figure 9 for
approximate center of gravity.
Section 5.3, Air for Combustion and Ventilation of the
National Fuel Gas Code, ANSI Z223.1 (in U.S.A.) or
Sections 7.2, 7.3 or 7.4 of Gas Installation Codes CSAB149.1 (in Canada) and/or applicable provisions of the
local building codes. Refer to Dimensions and Clearances shown in Figures 10 through 13 and Tables 16
and 17 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 Air Conditioning Contractors of America (ACCA).
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 10 through 14 for information concerning side and bottom supply and return air duct openings.
Before lifting a unit, make sure that all panels
are in place and that its weight is distributed
equally on all cables so it will lift evenly.
CLEARANCES
All units require certain clearances for proper operation
and service. Installer must make provisions for adequate combustion and ventilation air in accordance with
Unitary Products Group
NOTE: It is recommended that, in Canada, the outlet
duct be provided with a removable access
panel. It is recommended that this opening be
accessible when the unit is installed in service,
and of a size such that smoke or reflected light
may be observed inside the casing to indicate
the presence of leaks in the heat exchanger.
The cover should be attached in a manner
adequate to prevent leakage.
15
170651-YIM-A-1105
CONDENSATE DRAIN
Plumbing must conform to local codes. Use a sealing
compound on male pipe threads. Install a condensate
drain line from the 3/4” NPT female connection on the
unit to an open drain.
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.
Do not loosen compressor mounting bolts.
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 8.
SERVICE ACCESS
The following removable panels provide access to all
serviceable components:
•
Compressor compartment
•
Electric Heat compartment
•
Gas Heat compartment
•
Blower compartment
•
Main control box
•
Filter compartment
FIGURE 1 - RECOMMENDED DRAIN PIPING
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.
Refer to the Dimensions and Clearances shown in Figures 10, 11, 13 and 14 for location of these access
panels.
COMPRESSOR
MOUNTING
BRACKET BASE
REMOVE THESE
SCREWS (2)
MOUNTING
BRACKET TOP
(REMOVE)
Make sure that all screws and panel latches
are replaced and properly positioned on the
unit to maintain an airtight seal.
WIRE TIE
(CUT AND
REMOVE)
FIGURE 2 - COMPRESSOR RESTRAINING
BRACKET
16
Unitary Products Group
170651-YIM-A-1105
TYPICAL POWER WIRING
REFER TO THE ELECTRICAL DATA
TABLES TO SIZE THE DISCONNECT
SWITCH, OVERCURRENT PROTECTION AND WIRING.
TYPICAL CONTROL WIRING
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FIGURE 3 - TYPICAL FIELD POWER & CONTROL WIRING
Unitary Products Group
17
170651-YIM-A-1105
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.
When connecting electrical power and control
wiring to the unit, waterproof type connectors
MUST BE USED so that water or moisture
cannot be drawn into the unit during normal
operation. The above waterproofing conditions
will also apply when installing a field-supplied
disconnect switch.
POWER AND CONTROL WIRING
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.
18
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
1.
Wire Size
Maximum Length1
18 AWG
150 Feet
From the unit to the thermostat and back to the unit.
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 10 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
10 through 13 for electrical data.
Unitary Products Group
170651-YIM-A-1105
TABLE 3: ELECTRIC HEATER CFM LIMITATIONS
MINIMUM SUPPLY AIR CFM
UNITMODEL SIZE NOMINAL
TONS
VOLTAGE
HEATER SIZE NOMINAL KW
5
7
10
15
20
30
208/230-1-60
1100
1100
1200
1200
1300
-
208/230-3-60
1100
1100
1200
1200
1300
-
460-3-60
-
1100
1200
1200
1300
-
575-3-60
-
-
1200
1200
1300
-
208/230-1-60
1300
1300
1300
1300
1300
-
208/230-3-60
1300
1300
1300
1300
1300
-
460-3-60
-
1300
1300
1300
1300
-
575-3-60
-
-
1300
1300
1400
-
208/230-1-60
1600
1600
1600
1600
1600
1600
208/230-3-60
1600
1600
1600
1600
1600
1600
460-3-60
1600
1600
1600
1600
1600
1600
575-3-60
-
1600
1600
1600
1600
1800
208/230-3-60
1800
1800
1800
1800
1800
1800
460-3-60
1800
1800
1800
1800
1800
1800
575-3-60
-
-
1800
1800
1800
1800
3
4
5
6
GAS HEAT
These gas-fired heaters have aluminized-steel or
optional stainless steel, tubular heat exchangers with
spark ignition with proven pilot.
All gas heaters are shipped from the factory equipped
for natural gas use. See Gas Heat Application Data
Table.
For natural gas heating installations in locations requiring low NOx emissions, Accessory model 1LN0404
must be used.
TABLE 4: GAS HEAT APPLICATION DATA
GAS HEAT
OPTION
INPUT
CAPACITY
(MBH)
OUTPUT
CAPACITY
(MBH)
AVAILABLE
ON MODELS
GAS RATE1
(FT3/HR)
N04
50
40
3 TON
N06
75
60
4 TON
N08
100
80
N10
125
D06
75
TEMPERATURE RISE °F AT FULL INPUT2
MIN.
MAX.
47
15
45
70
45
55
3/5/6 TON
93
40/25/25
70/55/55
100
4/5/6 TON
116
45/35/35
75/65/65
61
3/4/5/6 TON
70
35/25/20/15
70/70/55/45
D10
115
92
3 TON
107
55
90
D10
125
101
4/5/6 TON
116
45/35/30
75/75/75
NOTE: Gas Heaters are shipped available for natural gas, but can be converted to L.P. with Kit Model No. 1NP0440 or 1NP0485 (2
Stage). All furnaces meet the latest California seasonal efficiency requirements.
1. Based on 1075 Btu/Ft3.
2. The air flow must be adjusted to obtain a temperature rise within the range shown.
Unitary Products Group
19
170651-YIM-A-1105
GAS PIPING
Proper sizing of gas piping depends on the cubic feet
per hour of gas flow required, specific gravity of the gas
and the length of run. “National Fuel Gas Code” Z223.1
(in U.S.A.) or the current Gas Installation Codes CSAB149.1 (in Canada) should be followed in all cases
unless superseded by local codes or gas utility requirements. Refer to the Pipe Sizing Table 5.
Two grommets are shipped in the blower compartment
(in parts bag taped to the blower housing) of every unit
with gas heat and should be used in the knockouts
when the gas piping penetrates the front of the unit.
After the gas supply piping has been installed, the bottom opening in the unit should be sealed to prevent
water from leaking into the building.
Gas piping recommendations:
The heating value of the gas may differ with locality.
The value should be checked with the local gas utility.
1. A drip leg and a ground joint union must be
installed in the gas piping.
NOTE: There may be a local gas utility requirement
specifying a minimum diameter for gas piping.
All units require a 1/2” pipe connection at the
entrance fitting.
3. Use wrought iron or steel pipe for all gas lines. Pipe
compound should be applied sparingly to male
threads only.
TABLE 5: GAS PIPE SIZING
NOMINAL IRON PIPE SIZE
LENGTH IN
FEET
1/2 in.
3/4 in.
1 in.
1-1/4 in.
10
132
278
520
1,050
20
92
190
350
730
30
73
152
285
590
40
63
130
245
500
50
56
115
215
440
60
50
105
195
400
70
46
96
180
370
80
43
90
170
350
90
40
84
160
320
100
38
79
150
305
Maximum capacity of pipe in cubic feet of gas per hour. (Based upon
a pressure drop of 0.3 inch water column and 0.6 specific gravity gas).
GAS CONNECTION
The gas supply line can be routed through the knockouts located on the front of the unit or through the
opening provided in the unit's base. Refer to Figure 11
to locate these access openings. Typical supply piping
arrangements are shown in Figures 4 and 5. All
shaded items are field-supplied.
If gas supply line is routed through the unit's base
ensure that the burner assembly can be removed for
maintenance without disturbing the supply line. The
supply piping and fittings must lie below the bottom gas
manifold to avoid interference with the burner assembly.
20
2. When required by local codes, a manual shut-off
valve may have to be installed outside of the unit.
Natural gas may contain some propane. Propane, being an excellent solvent, will quickly
dissolve white lead or most standard commercial compounds. Therefore, a special pipe
compound must be applied when wrought iron
or steel pipe is used. Shellac base compounds
such as Gaskolac or Stalastic, and compounds
such as Rectorseal #5, Clyde's or John Crane
may be used.
4. All piping should be cleaned of dirt and scale by
hammering on the outside of the pipe and blowing
out the loose dirt and scale. Before initial start-up,
be sure that all of the gas lines external to the unit
have been purged of air.
5. The gas supply should be a separate line and
installed in accordance with all safety codes as
prescribed under “Limitations”. After the gas connections have been completed, open the main
shut-off valve admitting normal gas pressure to the
mains. Check all joints for leaks with soap solution
or other material suitable for the purpose. NEVER
USE A FLAME.
Unitary Products Group
170651-YIM-A-1105
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warning exactly
could result in serious injury, death or property
damage.
Never test for gas leaks with an open flame.
use a commercially available soap solution
made specifically for the detection of leaks to
check all connections. A fire or explosion may
result causing property damage, personal
injury or loss of life.
6. The furnace and its individual manual shut-off
valve must be disconnected from the gas supply
piping system during any pressure testing of that
system at test pressures in excess of 1/2 psig
(3.48kPa).
FIGURE 5 - BOTTOM SUPPLY CONNECTION
EXTERNAL SHUT-OFF
L.P. UNITS, TANKS AND PIPING
The furnace must be isolated from the gas supply
piping system by closing its individual manual shutoff valve during any pressure testing of the gas
supply piping system at test pressures equal to or
less than 1/2 psig (3.48kPa).
All gas heat units are shipped from the factory
equipped for natural gas use only. The unit may be
converted in the field for use with L.P./propane gas
with accessory kit model number 1NP0440 or
1NP0485 (2 stage).
7. A 1/8 inch NPT plugged tap, accessible for test
gage connection, must be installed immediately
upstream of the gas supply connection to the furnace.
All L.P./propane gas equipment must conform to the
safety standards of the National Fire Protection Association.
For satisfactory operation, adequate L.P./propane gas
pressure must be provided at the unit manifold under
full load. Maintaining proper gas pressure depends on
three main factors:
1. The vaporization rate depends on (a) the temperature of the liquid and (b) the “wetted surface” area
of the container or containers.
2. The proper pressure regulation. (Two-stage regulation is recommended from the standpoint of both
cost and efficiency.)
3. The pressure drop in the lines between regulators
and between the second stage regulator and the
appliance. Pipe size required will depend on the
length of the pipe run and the total load of all appliances.
FIGURE 4 - EXTERNAL SUPPLY CONNECTION
EXTERNAL SHUT-OFF
Unitary Products Group
Complete information regarding tank sizing for vaporization, recommended regulator settings, and pipe sizing is available from most regulator manufacturers and
L.P./propane gas suppliers.
21
170651-YIM-A-1105
L.P./propane gas is an excellent solvent and special
pipe compound must be used when assembling piping
for this gas as it will quickly dissolve white lead or most
standard commercial compounds. Shellac base compounds such as Rectorseal #5 are satisfactory for this
type of gas.
Check all connections for leaks when piping is completed, using a soap solution. NEVER USE A FLAME.
FIRE OR EXPLOSION HAZARD
FIGURE 6 - VENT AND COMBUSTION AIR HOOD
Failure to follow the safety warning exactly
could result in serious injury, death or property
damage.
Never test for gas leaks with an open flame.
use a commercially available soap solution
made specifically for the detection of leaks to
check all connections. A fire or explosion may
result causing property damage, personal
injury or loss of life.
VENT AND COMBUSTION AIR HOODS
The vent hood and combustion air hood (with screens)
are shipped attached to the blower housing in the
blower compartment. These hoods must be installed to
assure proper unit function. All hoods must be fastened
to the outside of the gas heat access panel with the
screws provided in the bag also attached to the blower
housing.
The screen for the combustion air intake hood is
secured to the inside of the access panel opening with
three fasteners and the screws used for mounting the
hood to the panel. The top flange of this hood slips in
under the top of the access panel opening when installing. Refer to Vent and Combustion Air Hood Figure 6.
The vent hood is installed by inserting the top flange of
the hood into the slotted opening in the access panel
and securing in place.
The products of combustion are discharged horizontally through these two screened, hooded vent openings on the upper gas heat access panel.
22
An adhesive backed label is provided over the
outside of the combustion air inlet opening to
prevent moisture from entering the unit, which
could cause damage to electrical components.
Allow this closure label to remain in place until
the combustion air hood is to be installed.
ECONOMIZER/MOTORIZED DAMPER AND RAIN
HOOD
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.
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.
Unitary Products Group
170651-YIM-A-1105
Power exhaust is only available as a field installed
accessory.
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.
Extreme care must be excercised in turning all
setpoint, maximium, 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”.
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 set point may now be set by selecting the
desired setpoint shown in the Enthalpy Setpoint Adjustment Figure 7. Adjust as follows:
•
For a single enthalpy operation carefully turn
the set point 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 7.
Unitary Products Group
•
For a dual enthalpy operation, carefully turn
the set point adjusting screw fully clockwise
past the “D” setting.
POWER EXHAUST DAMPER SETPOINT (WITH OR WITHOUT POWER EXHAUST)
•
With no power exhaust option, adjust the
Exhaust 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 CO2 Space Sensor Kit Part #
2AQ04700324
•
Optional CO2 Unit Sensor Kit Part #
2AQ04700424
Replace the economizer access panel.
23
170651-YIM-A-1105
CONTROL
CURVE
CONTROL POINT
APPROX. 0F (0C)
AT 50% RH
A
B
85 90 95 100 105 110
(29) (32) (35) (38) (41) (43)
73 (23)
80
(27)
70 (21)
67 (19)
63 (17)
C
D
75
(24)
70
(21)
65
(18)
60
(16)
55
(13)
50
(10)
45
(7)
35
(2)
A
B
C
D
40
(4)
B
D C
35
(2)
40 45
(4) (7)
A
50 55 60 65 70 75 80 85 90 95 100 105 110
(10) (13) (16) (18) (21) (24) (27) (29) (32) (35) (38) (41) (43)
APPROXIMATE DRY BULB TEMPERATURE - 0F (0C)
FIGURE 7 - ENTHALPY SETPOINT ADJUSTMENT
Exhaust Air
Adjustment
Screw
Exhaust Air LED
Damper Min.
Position
Screw
Indoor Air Quality
Max. Adjustment
Screw
N1
N
EXH
Set
TR
P1
P
EXH
24
Vac
HOT
T1
T
Min
Pos
IAQ
Max
Indoor Air Quality
LED
AQ1
AQ
IAQ
SO
IAQ
Min
TR1
24
Vac
COM
+
1
2
5
Indoor Air Quality
Min. Adjustment
Screw
Free Cooling LED
SO+
3
4
EF
EF1
Free
Cool
SR+
SR
B
A
C
D
Economizer Enthalpy
Set Point Adjustment
Screw
FIGURE 8 - HONEYWELL ECONOMIZER CONTROL W7212
24
Unitary Products Group
170651-YIM-A-1105
BACK OF UNIT
A
447/8
BACK OF UNIT
A
447/8
82 /4
821/4
1
D
B
F
X
X
B
APPROXIMATE
CENTER OF GRAVITY
CONDENSER COIL
END OF UNIT
C
Y
FRONT OF UNIT
C
E
APPROXIMATE
CENTER OF GRAVITY
CONDENSER COIL
END OF UNIT
D
Y
FRONT OF UNIT
FIGURE 9 - FOUR AND SIX POINT LOADING
TABLE 6: CENTER OF GRAVITY (ALL MODELS)
DIMENSION
3 - 6 TON
X
44”
Y
19-¾”
TABLE 7: DR 4 AND 6 POINT LOADS WEIGHT DISTRIBUTION
UNIT
TOTAL
4-Point Loading (lb)
6-Point Loading (lb)
C
D
E
F
DR036 Cooling/ Electric
569
133
120
150
166
90
84
79
98
105
113
DR036N04
609
143
129
160
178
97
90
84
105
112
120
DR036D06
619
145
131
163
180
98
92
86
107
114
122
DR036N08
629
147
133
165
183
100
93
87
108
116
124
DR036D10
639
150
135
168
186
102
95
89
110
118
126
DR048 Cooling/ Electric
566
133
120
149
165
90
84
78
97
104
112
DR048(D,N)06
616
144
130
162
180
98
91
85
106
114
122
DR048(D,N)10
636
149
134
167
185
101
94
88
110
117
126
DR060 Cooling/ Electric
580
136
123
152
169
92
86
80
100
107
115
DR060D06
630
148
133
166
184
100
93
87
109
116
125
DR060N08
640
150
135
168
187
102
95
89
110
118
127
DR060(D,N)10
650
152
137
171
189
103
96
90
112
120
129
DR072 Cooling/ Electric
582
136
123
153
170
93
86
81
100
107
115
DR072D06
632
148
134
166
184
100
94
88
109
116
125
DR072N08
642
150
136
169
187
102
95
89
111
118
127
DR072(D,N)10
652
153
138
171
190
104
97
90
112
120
129
Unitary Products Group
A
B
C
D
A
B
25
170651-YIM-A-1105
TABLE 8: DR PHYSICAL DATA
DR
MODELS
EVAPORATOR
BLOWER
EVAPORATOR
COIL
CONDENSER
FANS
CONDENSER
COILS
COMPRESSOR
(Qty. Per Unit)
AIR
FILTERS
CHARGE
036
048
060
072
Centrifugal Blower (Dia. x Wd. in.)
12 X 10
12 X 10
12 X 10
12 X 10
Fan Motor HP (Belt Drive)
1 1/2
1 1/2
1 1/2
1 1/2
Rows Deep
3
4
4
4
Fins Per Inch
13
13
13
13
Face Area (Sq. Ft.)
5.1
5.1
5.1
5.1
Propeller Dia. (in.)
24
24
24
24
Fan Motor Hp
1/2
1/2
1/2
1/2
4500
Nom. CFM
4500
4500
4500
Rows Deep
2
2
2
2
Fins Per Inch
18
18
18
18
Face Area (Sq. Ft.)
17.1
17.1
17.1
17.1
Qty / Type
1/Recip
1/Recip
1/Scroll
1/Scroll
Quantity Per Unit (15” X 20” X 1” or 2“)
2
2
2
2
Quantity Per Unit (14” X 25” X 1” or 2“)
1
1
1
1
Total Face Area (sq. ft.)
6.6
6.6
6.6
6.6
Refrigerant 22
(lbs./oz.)
10/8
10/0
10/0
10/0
TABLE 9: DR OPERATING WEIGHTS (LBS.)
MODEL SIZE
3 TON
4 TON
5 TON
6 TON
569
566
580
582
N04
609
-
-
-
N06
-
616
-
-
N08
629
-
640
642
N10
-
636
650
652
D06
619
616
630
632
D10
639
636
650
652
DR (Cooling Only)
BASIC
UNIT
DR
(Gas/Electric)
Economizer
50
Motorized Damper
OPTIONS
Electric Heater
ACCY.
26
26
5 - 7 kW
18
10 - 15 kW
23
20 - 30 kW
28
Roof Curb
92
Barometric Relief / Fixed Air Damper
10
Belt-Drive Blower
5
Unitary Products Group
170651-YIM-A-1105
TABLE 10: ELECTRICAL DATA - DR036 AND DR048 W/O POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
TONNAGE
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
FLA
208-1-60
11.8
68.0
2.3
7.6
0.0
230-1-60
11.8
68.0
2.3
7.6
0.0
208-3-60
8.3
68
2.3
5.2
0.0
230-3-60
8.3
68
2.3
5.2
0.0
460-3-60
5.1
34
1.3
2.6
0.0
575-3-60
3.2
26.0
1.3
2.0
0.0
208-1-60
15.4
86.0
2.3
7.6
0.0
230-1-60
15.4
86.0
2.3
7.6
0.0
208-3-60
11.5
84
2.3
5.2
0.0
230-3-60
11.5
84
2.3
5.2
0.0
460-3-60
5.8
42
1.3
2.6
0.0
575-3-60
5.1
34
1.3
2
0.0
DR036
DR048
ELECTRIC HEATER HEATER HEATER
MODEL NO.
KW
AMPS
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
None
2CE04511058
2CE04511558
2CE04512058
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
None
2CE04511058
2CE04511558
2CE04512058
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-6.8
10.1
13.6
19.5
-10.6
15.9
21.2
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-6.8
10.1
13.6
19.5
-10.6
15.9
21.2
-19.2
26.9
38.5
57.2
76.4
-22.1
31.3
44.2
66.3
88.3
-11.1
15.5
22.2
33.0
44.1
-12.7
18.0
25.5
38.2
51.0
-8.2
12.1
16.4
23.5
-10.2
15.3
20.4
-19.2
26.9
38.5
57.2
76.4
-22.1
31.3
44.2
66.3
88.3
-11.1
15.5
22.2
33.0
44.1
-12.7
18.0
25.5
38.2
51.0
-8.2
12.1
16.4
23.5
-10.2
15.3
20.4
MAX. FUSE/
MIN.
BRKR1
CIRCUIT
AMPACITY
SIZE
(AMPS)
(AMPS)
24.6
30
33.5
35
43.2
45
57.6
60
81.0
90
105.1
110
24.6
30
37.1
40
38.6
50
64.7
70
92.3
100
119.9
125
17.9
25
20.4
25
25.9
30
34.3
35
47.8
50
61.7
70
17.9
25
22.4
25
29.1
30
38.4
40
54.3
60
70.2
80
10.3
15
13.5
15
18.4
20
23.7
25
32.6
35
7.0
15
15.2
20
21.6
25
28.0
30
29.1
35
33.5
40
43.2
45
57.6
60
81.0
90
105.1
110
29.1
35
37.1
50
48.6
50
64.7
70
92.3
100
119.9
125
21.9
30
21.9
30
25.9
30
34.3
35
47.8
50
61.7
70
21.9
30
22.4
30
29.1
30
38.4
40
54.3
60
70.2
80
11.1
15
13.5
15
18.4
20
23.7
25
32.6
35
9.4
15
15.2
20
21.6
25
28.0
30
1. HACR Type Per NEC.
2. These electric heaters DO NOT include a fuse box. If a fuse box is required to meet a local code (e.e. Chicago),
the fuse block accessories 2FB04700825 and 2FB04700846 are available for field installation.
Unitary Products Group
27
170651-YIM-A-1105
TABLE 11: ELECTRICAL DATA - DR060 AND DR072 W/O POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
TONNAGE
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
FLA
208-1-60
25.0
150.0
2.3
7.6
0.0
230-1-60
25.0
150.0
2.3
7.6
0.0
208-3-60
17.3
123
2.3
5.2
0.0
230-3-60
17.3
123
2.3
5.2
0.0
460-3-60
8.4
70
1.3
2.6
0.0
575-3-60
7
53
1.3
2
0.0
208-3-60
18.6
156
2.3
5.2
0.0
230-3-60
18.6
156
2.3
5.2
0.0
460-3-60
9
75
1.3
2.6
0.0
575-3-60
7.4
54
1.3
2
0.0
DR060
DR072
ELECTRIC HEATER HEATER HEATER
MODEL NO.
KW
AMPS
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
2CE04513006
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
2CE04513006
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
2CE045130462
None
2CE04511058
2CE04511558
2CE04512058
2CE04513058
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
2CE045130462
None
2CE04511058
2CE04511558
2CE04512058
2CE04513058
-4.0
5.6
8.0
11.9
15.9
22.2
-5.3
7.5
10.6
15.9
21.2
29.6
-4.0
5.6
8.0
11.9
15.9
22.2
-5.3
7.5
10.6
15.9
21.2
29.6
-6.8
10.1
13.6
19.5
28.8
-10.6
15.9
21.2
30.4
-4.0
5.6
8.0
11.9
15.9
22.2
-5.3
7.5
10.6
15.9
21.2
29.6
-6.8
10.1
13.6
19.5
28.8
-10.6
15.9
21.2
30.4
-19.2
26.9
38.5
57.2
76.4
106.7
-22.1
31.3
44.2
66.3
88.3
123.3
-11.1
15.5
22.2
33.0
44.1
61.6
-12.7
18.0
25.5
38.2
51.0
71.2
-8.2
12.1
16.4
23.5
34.6
-10.2
15.3
20.4
29.3
-11.1
15.5
22.2
33.0
44.1
61.6
-12.7
18.0
25.5
38.2
51.0
71.2
-8.2
12.1
16.4
23.5
34.6
-10.2
15.3
20.4
29.3
MAX. FUSE/
MIN.
BRKR1
CIRCUIT
AMPACITY
SIZE
(AMPS)
(AMPS)
41.2
45
41.2
45
43.2
60
57.6
60
81.0
90
105.1
110
142.9
150
41.2
45
41.2
45
48.6
60
64.7
70
92.3
100
119.9
125
163.7
175
29.1
35
29.1
35
29.1
35
34.3
45
47.8
50
61.7
70
83.5
90
29.1
35
29.1
35
29.1
35
38.4
45
54.3
60
70.2
80
95.5
100
14.4
20
14.4
20
18.4
20
23.7
25
32.6
35
46.6
50
11.8
15
15.2
20
21.6
25
28.0
30
39.1
40
30.8
40
30.8
40
30.8
40
34.3
45
47.8
50
61.7
70
83.5
90
30.8
40
30.8
40
30.8
40
38.4
45
54.3
60
70.2
80
95.5
100
15.1
20
15.1
20
18.4
20
23.7
25
32.6
35
46.6
50
12.3
15
15.2
20
21.6
25
28.0
30
39.1
40
1. HACR Type Per NEC.
2. These electric heaters DO NOT include a fuse box. If a fuse box is required to meet a local code (e.e. Chicago),
the fuse block accessories 2FB04700825 and 2FB04700846 are available for field installation.
28
Unitary Products Group
170651-YIM-A-1105
TABLE 12: ELECTRICAL DATA - DR036 AND DR048 WITH POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
TONNAGE
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
FLA
208-1-60
11.8
68.0
2.3
7.6
10.0
230-1-60
11.8
68.0
2.3
7.6
10.0
208-3-60
8.3
68
2.3
5.2
10.0
230-3-60
8.3
68
2.3
5.2
10.0
460-3-60
5.1
34
1.3
2.6
5.0
575-3-60
3.2
26.0
1.3
2.0
4.0
208-1-60
15.4
86.0
2.3
7.6
10.0
230-1-60
15.4
86.0
2.3
7.6
10.0
208-3-60
11.5
84
2.3
5.2
10.0
230-3-60
11.5
84
2.3
5.2
10.0
460-3-60
5.8
42
1.3
2.6
5.0
575-3-60
5.1
34
1.3
2.0
4.0
DR036
DR048
ELECTRIC HEATER HEATER HEATER
MODEL NO.
KW
AMPS
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
None
2CE04511058
2CE04511558
2CE04512058
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
None
2CE04511058
2CE04511558
2CE04512058
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-6.8
10.1
13.6
19.5
-10.6
15.9
21.2
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-4.0
5.6
8.0
11.9
15.9
-5.3
7.5
10.6
15.9
21.2
-6.8
10.1
13.6
19.5
-10.6
15.9
21.2
-19.2
26.9
38.5
57.2
76.4
-22.1
31.3
44.2
66.3
88.3
-11.1
15.5
22.2
33.0
44.1
-12.7
18.0
25.5
38.2
51.0
-8.2
12.1
16.4
23.5
-10.2
15.3
20.4
-19.2
26.9
38.5
57.2
76.4
-22.1
31.3
44.2
66.3
88.3
-11.1
15.5
22.2
33.0
44.1
-12.7
18.0
25.5
38.2
51.0
-8.2
12.1
16.4
23.5
-10.2
15.3
20.4
MAX. FUSE/
MIN.
BRKR1
CIRCUIT
AMPACITY
SIZE
(AMPS)
(AMPS)
34.7
45
46.0
50
55.7
60
70.1
80
93.5
100
117.6
125
34.7
45
49.6
50
61.1
70
77.2
80
104.8
110
132.4
150
28.3
35
32.9
35
38.4
40
46.8
50
60.3
70
74.2
80
32.3
40
34.9
40
41.6
45
50.9
60
66.8
70
82.7
90
15.3
20
19.7
20
24.7
25
29.9
30
38.8
40
12.2
15
20.2
25
26.6
30
33.0
35
39.1
50
46.0
50
55.7
60
70.1
80
93.5
100
117.6
125
39.1
50
49.6
50
61.1
70
77.2
80
104.8
110
132.4
150
31.9
40
32.9
40
38.4
40
46.8
50
60.3
70
74.2
80
31.9
40
34.9
40
41.6
45
50.9
60
66.8
70
82.7
90
16.1
20
19.7
20
24.7
25
29.9
30
38.8
40
13.4
15
20.2
25
26.6
30
33.0
35
1. HACR Typer Per NEC.
2. These electric heaters DO NOT include a fuse box. If a fuse box is required to meet a local code (e.e. Chicago),
the fuse block accessories 2FB04700825 and 2FB04700846 are available for field installation.
Unitary Products Group
29
170651-YIM-A-1105
TABLE 13: ELECTRICAL DATA - DR060 AND DR072 WITH POWERED CONVENIENCE OUTLET
COMPRESSORS
MODEL
TONNAGE
VOLTAGE
RLA
EACH
LRA
EACH
OD FAN
MOTOR
FLA
ID
BLOWER
MOTOR
FLA
CONV
OUTLET
FLA
208-1-60
25.0
150.0
2.3
7.6
10.0
230-1-60
25.0
150.0
2.3
7.6
10.0
208-3-60
17.3
123
2.3
5.2
10.0
230-3-60
17.3
123
2.3
5.2
10.0
460-3-60
8.4
70
1.3
2.6
5.0
575-3-60
7.0
53
1.3
2.0
4.0
208-3-60
18.6
156
2.3
5.2
10.0
230-3-60
18.6
156
2.3
5.2
10.0
460-3-60
9.0
75
1.3
2.6
5.0
575-3-60
7.4
54
1.3
2.0
4.0
DR060
DR072
ELECTRIC HEATER HEATER HEATER
MODEL NO.
KW
AMPS
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
2CE04513006
None
2CE04510506
2CE04510706
2CE04511006
2CE04511506
2CE04512006
2CE04513006
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
2CE045130462
None
2CE04511058
2CE04511558
2CE04512058
2CE04513058
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045105252
2CE045107252
2CE04511025
2CE04511525
2CE04512025
2CE04513025
None
2CE045107462
2CE045110462
2CE045115462
2CE045120462
2CE045130462
None
2CE04511058
2CE04511558
2CE04512058
2CE04513058
-4.0
5.6
8.0
11.9
15.9
22.2
-5.3
7.5
10.6
15.9
21.2
29.6
-4.0
5.6
8.0
11.9
15.9
22.2
-5.3
7.5
10.6
15.9
21.2
29.6
-6.8
10.1
13.6
19.5
28.8
-10.6
15.9
21.2
30.4
-4.0
5.6
8.0
11.9
15.9
22.2
-5.3
7.5
10.6
15.9
21.2
29.6
-6.8
10.1
13.6
19.5
28.8
-10.6
15.9
21.2
30.4
-19.2
26.9
38.5
57.2
76.4
106.7
-22.1
31.3
44.2
66.3
88.3
123.3
-11.1
15.5
22.2
33.0
44.1
61.6
-12.7
18.0
25.5
38.2
51.0
71.2
-8.2
12.1
16.4
23.5
34.6
-10.2
15.3
20.4
29.3
-11.1
15.5
22.2
33.0
44.1
61.6
-12.7
18.0
25.5
38.2
51.0
71.2
-8.2
12.1
16.4
23.5
34.6
-10.2
15.3
20.4
29.3
MAX. FUSE/
MIN.
BRKR1
CIRCUIT
AMPACITY
SIZE
(AMPS)
(AMPS)
51.2
70
51.2
70
44.7
70
70.1
80
93.5
100
117.6
125
155.4
175
51.2
70
51.2
70
61.1
70
77.2
80
104.8
110
132.4
150
176.2
200
39.1
50
39.1
50
39.1
50
46.8
50
60.3
70
74.2
80
96.0
100
39.1
50
39.1
50
41.6
50
50.9
60
66.8
70
82.7
90
108.0
110
19.4
25
19.7
25
24.7
25
29.9
30
38.8
40
52.8
60
15.8
20
20.2
25
26.6
30
33.0
35
44.1
45
40.8
50
40.8
50
40.8
50
46.8
50
60.3
70
74.2
80
96.0
100
40.8
50
40.8
50
41.6
50
50.9
60
66.8
70
82.7
90
108.0
110
20.1
25
20.1
25
24.7
25
29.9
30
38.8
40
52.8
60
16.3
20
20.2
25
26.6
30
33.0
35
44.1
45
1. HACR Type Per NEC.
2. These electric heaters DO NOT include a fuse box. If a fuse box is required to meet a local code (e.e. Chicago),
the fuse block accessories 2FB04700825 and 2FB04700846 are available for field installation.
30
Unitary Products Group
170651-YIM-A-1105
TABLE 14: ELECTRIC HEAT CORRECTION
FACTORS
NOMINAL VOLTAGE
VOLTAGE
kW CAP. MULTIPLIER
TABLE 15: VOLTAGE LIMITATIONS1
VOLTAGE
POWER SUPPLY
MIN.
MAX.
208/230-1-60
187
252
208
208
1.00
240
230
0.92
480
460
0.92
208/230-3-60
187
252
600
575
0.92
460-3-60
432
504
575-3-60
540
630
1.
Utilization Range “A” in accordance with ARI Standard
110.
FIGURE 10 - UNIT DIMENSIONS (3 - 6 TON COOLING ONLY/ELECTRIC HEAT) FRONT VIEW
Unitary Products Group
31
170651-YIM-A-1105
FIGURE 11 - UNIT DIMENSIONS (3 - 6 TON COOLING/GAS HEAT) FRONT VIEW
DETAIL “A”
FIGURE 12 - UNIT WITH ECONOMIZER RAINHOOD
32
Unitary Products Group
170651-YIM-A-1105
DETAIL “B”
FIGURE 13 - UNIT WITH FIXED OUTDOOR AIR/MOTORIZED DAMPER RAINHOOD
FIGURE 14 - UNIT DIMENSIONS (REAR VIEW)
Unitary Products Group
33
170651-YIM-A-1105
FILTER
ACCESS
BLOWER MOTOR
ACCESS
DOT PLUGS
FIELD-SUPPLIED
DISCONNECT SWITCH
LOCATION
MOUNTING BRACKET
FOR DICONNECT SWITCH
(Shipped attached to the
blower housing inside
the blower compartment)
A,B
WIRING ENTRY
(See Detail “B”)
CONTROL BOX
ACCESS
DISCONNECT SWITCH LOCATION
AND MOTOR ACCESS PANEL FOR
UNIT WITH “BELT-DRIVE” OPTION
FIGURE 15 - DISCONNECT/BLOWER ACCESS LOCATION
TABLE 16: UTILITIES ENTRY
HOLE
CLEARANCE
Front
24” (Cooling/Electric Heat)
32” (Gas Heat)
Rear
12” (Less Economizer)
36” (With Economizer or Fixed
Air/Motorized Damper)
Left Side (Filter Access)
24” (Less Economizer)
36” (With Economizer)
Right Side (Cond. Coil)
24”
Side
7/8” KO1
Control Wiring2
B
2” KO1
Power Wiring
C
1-5/8” KO
Gas Piping (Front)
D
1-1/2” KO
Gas Piping (Bottom)
2.
LOCATION
USED FOR
A
1.
34
TABLE 17: MINIMUM CLEARANCES
OPENING SIZE (DIA.)
Bottom
Side
Bottom
Opening in the bottom to the unit can be located by the
side in the insulation.
Do not remove the 2” knockout ring.
Below Unit1
0”
Above Unit2
72” (For
Condenser Air Discharge)
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.
Unitary Products Group
170651-YIM-A-1105
TABLE 18: DR036 BLOWER PERFORMANCE - SIDE FLOW
ESP1
CFM
1979
1791
1619
1446
1252
1020
0.2
0.3
0.4
0.5
0.6
0.7
0 Turns Open
1 Turn Open
RPM WATTS BHP CFM RPM WATTS BHP
879
713
0.76 1811 830
635
0.68
880
677
0.73 1623 831
599
0.64
881
635
0.68 1451 832
557
0.60
882
590
0.63 1277 833
512
0.55
883
543
0.58 1084 834
465
0.50
885
497
0.53 -------------
CFM
1641
1453
1281
1107
-------
TURNS OPEN2
2 Turns Open
3 Turns Open
RPM WATTS BHP CFM RPM WATTS BHP
781
563
0.60 1468 731
496
0.53
781
527
0.57 1280 732
461
0.49
782
485
0.52 1108 733
419
0.45
784
440
0.47
-------------------------------------------------------
4 Turns Open
CFM RPM WATTS BHP
1293 681
436
0.47
1105 682
401
0.43
933
683
359
0.38
-------------------------------------
5 Turns Open
CFM RPM WATTS BHP
1116 630
382
0.41
928
631
347
0.37
-------------------------------------------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR036 Belt Drive Assembly With Factory Installed AK74 Blower Sheave And A39 Belt (Side Flow)
0.8
0.7
ESP (IWG)
0.6
0.5
0.4
0.3
0.2
5 Turns
4 Turns
3 Turns
2 Turns
1 Turn
0 Turns
0.1
0
800
1000
1200
1400
1600
1800
2000
2200
CFM
TABLE 19: DR036 BLOWER PERFORMANCE W/FIELD INSTALLED BLOWER SHEAVE- SIDE FLOW
ESP1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
CFM
------2458
2283
2119
1963
1810
1657
1500
0 Turns Open
1 Turn Open
RPM WATTS BHP CFM RPM WATTS BHP
------------------------------- 2406 1023
1071
1.15
1076
1202
1.29 2217 1025
1026
1.10
1077
1161
1.25 2042 1026
985
1.06
1078
1122
1.20 1878 1027
946
1.02
1080
1080
1.16 1721 1029
904
0.97
1081
1031
1.11 1568 1030
855
0.92
1083
969
1.04 1415 1032
793
0.85
1085
892
0.96 -------------
CFM
2371
2162
1972
1797
1633
1477
1324
-------
TURNS OPEN2
2 Turns Open
3 Turns Open
RPM WATTS BHP CFM RPM WATTS BHP
966
974
1.05 2123 904
845
0.91
967
919
0.99 1914 906
790
0.85
969
873
0.94 1724 907
744
0.80
970
833
0.89 1549 908
704
0.75
971
794
0.85 1386 910
665
0.71
973
752
0.81 1229 911
623
0.67
974
702
0.75
-------------------------------------------------------
4 Turns Open
CFM RPM WATTS BHP
1872 837
740
0.79
1663 839
684
0.73
1473 840
638
0.68
1298 841
598
0.64
1135 843
559
0.60
-------------------------------------------------
5 Turns Open
CFM RPM WATTS BHP
1618 765
657
0.71
1409 766
602
0.65
1219 768
556
0.60
1044 769
516
0.55
-------------------------------------------------------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR036 Belt Drive Assembly With Field Installed AK61 Blower Sheave And A36 Belt (Side Flow)
1.2
1
ESP (IWG)
0.8
0.6
0.4
0 Turns
1 Turn
0.2
5 Turns
0
1000
1200
1400
1600
4 Turns
1800
3 Turns
2000
2200
2 Turns
2400
2600
CFM
Unitary Products Group
35
170651-YIM-A-1105
TABLE 20: DR036 BLOWER PERFORMANCE - DOWN FLOW
TURNS OPEN2
ESP1
0.2
0.3
0.4
0.5
0.6
0.7
CFM
1903
1704
1507
1311
1115
917
0 Turns Open
RPM WATTS
881
660
882
631
882
596
882
556
883
510
883
458
BHP
0.71
0.68
0.64
0.60
0.55
0.49
CFM
1690
1491
1295
1099
902
----
1 Turn Open
RPM WATTS
833
587
834
559
834
524
835
483
835
437
-------
BHP
0.63
0.60
0.56
0.52
0.47
----
2 Turns Open
CFM RPM WATTS
1501 784
519
1302 785
490
1105 786
455
909
786
415
-------------------
3 Turns Open
BHP CFM RPM WATTS
0.56 1334 735
455
0.53 1135 735
426
0.49 938
736
391
0.44 742
736
351
-------------------------
4 Turns Open
BHP CFM RPM WATTS
0.49 1190 684
395
0.46 991
685
366
0.42 794
685
332
0.38
----------------------------------
5 Turns Open
BHP CFM RPM WATTS BHP
0.42 1069 632
340
0.36
0.39 870
632
311
0.33
0.36
----------------------------------------------------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR036 Belt Drive Assembly With Factory Installed AK74 Blower Sheave And A39 Belt (Down Flow)
0.8
0.7
ESP (IWG)
0.6
0.5
0.4
0.3
0.2
4 Turns
5 Turns
3 Turns
1 Turn
2 Turns
0 Turns
0.1
0
600
800
1000
1200
1400
1600
1800
2000
2200
CFM
TABLE 21: DR036 BLOWER PERFORMANCE W/FIELD INSTALLED BLOWER SHEAVE - DOWN FLOW
TURNS OPEN2
ESP1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
CFM
2522
2350
2194
2051
1915
1783
1648
1507
1356
0 Turns Open
RPM WATTS
1083
1084
1084
1056
1085
1020
1087
979
1088
933
1089
883
1091
829
1092
772
1094
713
BHP
1.16
1.13
1.09
1.05
1.00
0.95
0.89
0.83
0.76
CFM
2295
2122
1967
1824
1688
1555
1421
1280
1128
1 Turn Open
RPM WATTS
1024
933
1025
905
1027
870
1028
828
1029
782
1030
732
1032
678
1033
621
1035
562
BHP
1.00
0.97
0.93
0.89
0.84
0.79
0.73
0.67
0.60
2 Turns Open
RPM WATTS
965
801
967
772
968
737
969
696
970
650
971
600
973
545
-------------
CFM
2080
1908
1752
1609
1473
1340
1206
-------
BHP
0.86
0.83
0.79
0.75
0.70
0.64
0.59
-------
3 Turns Open
CFM RPM WATTS
1878 907
688
1706 908
659
1550 909
624
1407 910
583
1271 912
536
1138 913
486
----------------------------
BHP
0.74
0.71
0.67
0.63
0.58
0.52
----------
4 Turns Open
CFM RPM WATTS
1689 848
593
1516 850
564
1361 851
529
1218 852
488
1082 853
442
-------------------------------------
BHP
0.64
0.61
0.57
0.52
0.47
-------------
5 Turns Open
CFM RPM WATTS
1512 790
516
1340 791
488
1184 793
452
1041 794
411
----------------------------------------------
1 Turn
0 Turns
BHP
0.55
0.52
0.49
0.44
----------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR036 Belt Drive Assembly With Field Installed AK61 Blower Sheave And A36 Belt (Down Flow)
1.2
1
ESP (IWG)
0.8
0.6
0.4
0.2
5 Turns
0
1000
1200
1400
1600
4 Turns
3 Turns
1800
2 Turns
2000
2200
2400
2600
CFM
36
Unitary Products Group
170651-YIM-A-1105
TABLE 22: DR048 BLOWER PERFORMANCE - SIDE FLOW
ESP1
CFM
------2270
2119
1975
1835
1696
1554
1406
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 Turns Open
RPM WATTS
------------1077 1157
1078 1121
1079 1084
1081 1040
1083
988
1085
922
1087
838
BHP
------1.24
1.20
1.16
1.12
1.06
0.99
0.90
CFM
---2211
2048
1897
1753
1613
1474
1332
----
1 Turn Open
RPM WATTS
------1025 1024
1026
987
1027
951
1028
914
1030
870
1032
818
1034
751
-------
BHP
---1.10
1.06
1.02
0.98
0.93
0.88
0.81
----
CFM
2164
1988
1825
1674
1530
1390
1251
-------
TURNS OPEN2
2 Turns Open
3 Turns Open
RPM WATTS BHP CFM RPM WATTS
967
920
0.99 1939 905
797
968
877
0.94 1763 907
754
970
840
0.90 1600 908
716
971
804
0.86 1449 909
681
972
767
0.82 1305 910
643
973
724
0.78 1165 912
600
975
671
0.72 ----------------------------------------------
4 Turns Open
CFM RPM WATTS
1713 838
697
1536 840
654
1373 841
616
1222 842
581
1078 843
543
-------------------------------------
BHP
0.85
0.81
0.77
0.73
0.69
0.64
----------
BHP
0.75
0.70
0.66
0.62
0.58
-------------
5 Turns Open
CFM RPM WATTS
1484 766
620
1307 767
577
1145 768
540
993 769
504
----------------------------------------------
BHP
0.67
0.62
0.58
0.54
----------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR048 Belt Drive Assembly With Factory Installed AK61 Blower Sheave And A36 Belt (Side Flow)
1.2
1
ESP (IWG)
0.8
0.6
0.4
0 Turns
1 Turn
0.2
4 Turns
5 Turns
0
800
1000
1200
1400
1600
3 Turns
1800
2 Turns
2000
2200
2400
CFM
TABLE 23: DR048 BLOWER PERFORMANCE W/FIELD INSTALLED BLOWER SHEAVE - SIDE FLOW
ESP1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
CFM
---2618
2463
2324
2197
2078
1963
1849
1732
1607
1472
1323
0 Turns Open
RPM WATTS
------1166 1410
1167 1379
1168 1329
1171 1264
1173 1189
1176 1106
1179 1022
1182
939
1185
862
1187
796
1188
743
BHP
---1.51
1.48
1.43
1.36
1.28
1.19
1.10
1.01
0.92
0.85
0.80
CFM
2570
2396
2241
2102
1975
1856
1741
1627
1510
1386
1251
----
1 Turn Open
RPM WATTS
1101 1263
1101 1255
1102 1224
1104 1174
1106 1109
1109 1033
1112
951
1115
867
1118
784
1120
707
1122
640
-------
BHP
1.36
1.35
1.31
1.26
1.19
1.11
1.02
0.93
0.84
0.76
0.69
----
CFM
2350
2175
2021
1882
1754
1635
1521
1407
1289
----------
TURNS OPEN2
2 Turns Open
3 Turns Open
RPM WATTS BHP CFM RPM WATTS
1036 1106 1.19 2130 971
947
1036 1098 1.18 1956 971
939
1037 1067 1.14 1801 972
908
1039 1017 1.09 1662 974
858
1041
952
1.02 1535 976
793
1044
876
0.94 1416 979
717
1047
794
0.85 1301 982
635
1050
709
0.76 ---------1053
627
0.67 ----------------------------------------------------------------
BHP
1.02
1.01
0.97
0.92
0.85
0.77
0.68
----------------
4 Turns Open
CFM RPM WATTS
1912 906
786
1738 906
778
1583 907
747
1444 908
697
1317 911
632
1198 913
557
-------------------------------------------------------
BHP
0.84
0.84
0.80
0.75
0.68
0.60
-------------------
5 Turns Open
CFM RPM WATTS
1695 840
623
1521 840
616
1366 841
585
1227 843
535
1100 845
469
----------------------------------------------------------------
BHP
0.67
0.66
0.63
0.57
0.50
----------------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR048 Belt Drive Assembly With Field Installed AK56 Blower Sheave And A36 Belt (Side Flow)
1.4
1.2
ESP (IWG)
1
0.8
0.6
0.4
0 Turns
0.2
5 Turns
0
1000
1200
1400
1600
4 Turns
1800
2000
3 Turns
2200
2 Turns
2400
1 Turn
2600
2800
CFM
Unitary Products Group
37
170651-YIM-A-1105
TABLE 24: DR048 BLOWER PERFORMANCE - DOWN FLOW
2
1
ESP
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
CFM
2336
2189
2054
1928
1805
1683
1556
1422
1275
0 Turns Open
RPM WATTS
1084 1047
1086 1018
1087
982
1088
940
1089
894
1090
844
1092
792
1093
737
1095
683
BHP
1.12
1.09
1.05
1.01
0.96
0.91
0.85
0.79
0.73
CFM
2126
1979
1844
1718
1595
1473
1346
1212
1065
1 Turn Open
RPM WATTS
1025
903
1026
873
1028
837
1029
795
1030
749
1031
699
1032
647
1034
593
1036
538
BHP
0.97
0.94
0.90
0.85
0.80
0.75
0.69
0.64
0.58
CFM
1928
1781
1646
1520
1398
1275
1149
-------
TURNS OPEN
2 Turns Open
3 Turns Open
RPM WATTS BHP CFM RPM WATTS
966
776
0.83 1743 908
666
968
746
0.80 1596 909
637
969
710
0.76 1461 910
601
970
668
0.72 1334 911
559
971
622
0.67 1212 912
513
972
572
0.61 1090 913
463
974
520
0.56 ---- ---------------- ---- ---------------- ---- -------
BHP
0.71
0.68
0.64
0.60
0.55
0.50
----------
CFM
1569
1422
1287
1161
1039
-------------
4 Turns Open
RPM WATTS
849
575
850
546
851
510
852
468
854
422
-------------------------
BHP
0.62
0.59
0.55
0.50
0.45
-------------
CFM
1408
1261
1126
1000
----------------
5 Turns Open
RPM WATTS
791
502
792
472
793
436
794
395
-------------------------------
BHP
0.54
0.51
0.47
0.42
----------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR048 Belt Drive Assembly With Factory Installed AK61 Blower Sheave And A36 Belt (Down Flow)
1.2
1
ESP (IWG)
0.8
0.6
0.4
0.2
5 Turns
0
800
1000
1200
4 Turns
1400
3 Turns
1600
2 Turns
1800
0 Turns
1 Turn
2000
2200
2400
CFM
TABLE 25: DR048 BLOWER PERFORMANCE W/FIELD INSTALLED BLOWER SHEAVE - DOWN FLOW
2
ESP1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
CFM
2624
2483
2354
2233
2118
2006
1894
1780
1662
1537
1403
1256
0 Turns Open
RPM WATTS
1171 1332
1172 1296
1173 1258
1175 1217
1176 1175
1178 1129
1181 1080
1183 1027
1185
970
1188
909
1191
842
1194
771
BHP
1.43
1.39
1.35
1.31
1.26
1.21
1.16
1.10
1.04
0.97
0.90
0.83
CFM
2390
2250
2121
2000
1884
1772
1661
1547
1429
1304
1169
----
1 Turn Open
RPM WATTS
1103 1133
1104 1097
1105 1058
1107 1018
1109
975
1110
930
1113
881
1115
828
1117
771
1120
710
1123
643
-------
BHP
1.22
1.18
1.14
1.09
1.05
1.00
0.94
0.89
0.83
0.76
0.69
----
CFM
2164
2024
1894
1773
1658
1546
1434
1321
1203
----------
TURNS OPEN
2 Turns Open
3 Turns Open
RPM WATTS BHP CFM RPM WATTS
1035
957
1.03 1944 968
804
1036
920
0.99 1804 969
767
1038
882
0.95 1675 970
729
1039
842
0.90 1554 972
689
1041
799
0.86 1438 974
646
1043
754
0.81 1326 975
601
1045
704
0.76 1214 978
551
1047
652
0.70 ---- ------1050
595
0.64 ---- ---------------- ---- ---------------- ---- ---------------- ---- -------
BHP
0.86
0.82
0.78
0.74
0.69
0.64
0.59
----------------
CFM
1731
1591
1462
1341
1225
1113
-------------------
4 Turns Open
RPM WATTS
901
674
902
637
903
599
905
559
907
516
909
471
-------------------------------------
BHP
0.72
0.68
0.64
0.60
0.55
0.50
-------------------
CFM
1525
1385
1256
1135
1019
----------------------
5 Turns Open
RPM WATTS
834
567
835
531
837
492
838
452
840
409
-------------------------------------------
BHP
0.61
0.57
0.53
0.49
0.44
----------------------
1. External Static Pressure (ESP) is that available for supply and return duct system including internal losses from gas heat exchangers and 1" filters.
See STATIC RESISTANCE table for additional applications.
2. TURNS OPEN = Setting of the variable pitch motor sheave where "0 Turns Open" is fully closed.
DR048 Belt Drive Assembly With Field Installed AK56 Blower Sheave And A36 Belt (Down Flow)
1.4
1.2
ESP (IWG)
1
0.8
0.6
0.4
0.2
0
1000
5 Turns
1200
1400
1600
4 Turns
3 Turns
1800
2000
2 Turns
2200
1 Turn
2400
0 Turns
2600
2800
CFM
38
Unitary Products Group
170651-YIM-A-1105
TABLE 26: DR060 & 072 BLOWER PERFORMANCE - SIDE FLOW
(63
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530 :$776
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530 :$776
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7XUQV2SHQ
530 :$776 %+3 &)0 530 :$776
%+3
7XUQV2SHQ
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%+3
7XUQV2SHQ
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%+3
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TABLE 27: DR060 & 072 BLOWER PERFORMANCE - DOWN FLOW
(63
&)0
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Unitary Products Group
39
170651-YIM-A-1105
TABLE 28: BELT DRIVE BLOWER MOTOR AND DRIVE DATA
MOTOR1
ADJUSTABLE MOTOR PULLEY
BELT
(NOTCHED)
FIXED BLOWER PULLEY
MODEL
SIZE
BLOWER
RANGE
(RPM)
HP
FRAME
DESIGNATION
OUTSIDE
DIA.
(IN.)
PITCH
DIA.
(IN.)
BORE
(IN.)
DESIGNATION
OUTSIDE
DIA.
(IN.)
PITCH
DIA.
(IN.)
BORE
(IN.)
DESIGNATION
PITCH
LENGTH
(IN.)
QTY.
3 TON
790/1120
1 1/2
56
1VL40
2.7-3.7
2.4-3.4
7/8
AK74
7.25
7.2
1
A39
40.3
1
4 TON
790/1120
1 1/2
56
1VL40
2.7-3.7
2.4-3.4
7/8
AK61
5.9
5.7
1
A36
37.3
1
5, 6 TON
850/1220
1 1/2
56
1VL40
2.7-3.7
2.4-3.4
7/8
AK56
5.4
5.2
1
A35
36.3
1
1.
All motors have solid bases and are inherently protected. These motors can be selected to operate into their service factor because they are located
in the moving air, upstream of any heating device.
TABLE 29: STATIC RESISTANCES
RESISTANCE, IWG
DESCRIPTION
CFM
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
0.07
0.08
0.09
0.11
0.13
0.15
0.17
0.20
0.23
0.26
0.30
7-15KW
0.04
0.05
0.06
0.07
0.08
0.10
0.12
0.14
0.16
0.19
0.22
20-30KW
0.06
0.07
0.08
0.09
0.11
0.13
0.15
0.17
0.20
0.23
0.26
2
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0.23
0.26
0.29
0.32
ECONOMIZER1,3
ELECTRIC
HEATERS1
COOLING ONLY
1. Deduct these resistance values from the available external static pressure shown in SUPPLY AIR BLOWER PERFORMANCE Tables.
2. Add these resistance values to the available static resistance values on SUPPLY AIR BLOWER PERFORMANCE Tables.
3. 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.
PHASING
SUPPLY AIR BLOWERS
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).
These blowers have either 3-speed direct drive motors,
or single speed motors equipped with a belt drive. Belt
drive units have a variable pitch 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.
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.
40
Unitary Products Group
170651-YIM-A-1105
2. Insert at least 8" of 1/4 inch tubing into each of
these holes for sufficient penetration into the air
flow on both sides of the indoor coil.
NOTE: The 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
readings.
3. Using an inclined manometer, determine the pressure drop across a dry evaporator coil. Since the
moisture on an evaporator coil may vary greatly,
measuring the pressure drop across a wet coil
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 17).
Failure to properly adjust the total system air
quantity and static pressure can result in
extensive system damage.
FIGURE 16 - BELT ADJUSTMENT
Note the following:
1. The supply air CFM must be within the limitations
shown in the Unit Application Data Table 1.
After readings have been obtained, remove the tubes
and reinstall the two 5/16” dot plugs that were removed
in Step 1.
2. Pulleys can be adjusted in half turn increments.
NOTE:
De-energize the compressors before taking
any test measurements to assure a dry indoor
coil.
3. The tension on the belt should be adjusted as
shown in the Belt Adjustment Figure 16.
To check the supply air CFM after the initial balancing
has been completed:
35(6685('523,:*
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.
1. Remove the two 5/16” dot plugs from the blower
motor and the filter access panels shown in
Figure 15.
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120,1$/&)0
FIGURE 17 - PRESSURE DROP ACROSS COIL
41
170651-YIM-A-1105
OPERATION
gized. After completing the specified fan on delay for
cooling, the UCB will energize the blower motor.
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.
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.
For gas heating, the UCB monitors the “W1” call but
does not handle the operation of the gas furnace. An
ignition control board controls the gas heater operation.
To be available, a compressor must not be locked-out
due to a high or low-pressure switch or freezestat trip
and the anti-short cycle delay (ASCD) must have
elapsed.
For electric heat units, the UCB passes the call to the
electric heater.
REHEAT MODE SEQUENCE OF OPERATION
In both cases, when the “W1” call is sensed, the indoor
air blower is energized following a specified heating
delay.
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.
When energized, the indoor blower has a minimum run
time of 30 seconds. Additionally, the indoor blower has
a delay of 10 seconds between operations.
NO OUTDOOR AIR OPTIONS
When the thermostat calls for cooling, the low-voltage
control circuit from “R” to “Y1” and “G” is completed.
The compressor and condenser fan motor are ener-
42
STANDARD A/C MODE: INPUT: Y1 ON, Y2 OFF,
HUMIDISTAT OPEN
During normal cooling operation, a Y1 call from the
thermostat will bring on the unit in the standard cooling
mode. Since the humidistat is open, the liquid line solenoid (SLL) will be open and the hot gas solenoid (SHG)
will be closed allowing the unit to operate in the standard cooling mode.
REHEAT MODE: INPUT: Y1 ON, Y2 OFF, HUMIDISTAT
CLOSED
During reheat mode, the Y1 signal will bring on the
compressor and will send the 24V signal through the
humidistat, through the normally closed contacts of the
hot gas relay (RHG) and will energize both the liquid
line and the hot gas solenoids which directs hot gas
through part of the indoor coil and decreases the sensible capacity of the unit.
STANDARD A/C MODE: INPUT: Y1 ON, Y2 ON,
HUMIDISTAT OPEN OR CLOSED
If there is a call for Y1 and Y2, the unit will be in normal
cooling mode regardless of the humidistat input. The
Y2 signal will energize the hot gas relay (RHG) which
will keep the liquid line solenoid (SLL) open and the hot
gas solenoid (SHG) closed and the unit will operate in
the normal cooling mode.
ECONOMIZER WITH SINGLE ENTHALPY SENSOR
When the room thermostat calls for cooling, the low
voltage control circuit from “R” to “G” and “Y1” is com-
Unitary Products Group
170651-YIM-A-1105
pleted. The UCB energizes the blower motor (if the fan
switch on the room thermostat is set in the “AUTO”
position) and drives the economizer dampers from fully
closed to their minimum position. If the enthalpy of the
outdoor air is below the setpoint of the enthalpy 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 following the elapse of the
fan off delay for cooling, and the economizer damper
goes to the closed position. If the unit is in continues
fan operation the economizer damper goes to the min.
position.
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
return 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 minimum position but does
not provide power exhaust operation.
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 36).
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 (Table 36).
FREEZESTAT
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
open to a position set by the thumbnail on the damper
motor. When the “R” to “G” circuit is opened, the
damper spring returns fully closed.
Unitary Products Group
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 cooling is still present at the conclusion of the ASCD, the
UCB will re-energize the compressor.
43
170651-YIM-A-1105
Should a freezestat open three times within two hours
of operation, the UCB will lock-out the compressor and
flash a code (Table 36).
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 low 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.
COMPRESSOR PROTECTION
The compressor also has inherent (internal) protection.
If there is an abnormal temperature 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 36.
RESET
Remove the call for cooling, by raising thermostat setting higher than the conditioned space temperature.
This resets any pressure or freezestat flash codes.
ELECTRIC HEATING SEQUENCE OF OPERATIONS
SAFETY CONTROLS
The unit control board monitors the following inputs for
the cooling system:
1. A suction line freezestat to protect against low
evaporator temperatures due to a low airflow or a
low return air temperature, (opens at 26 ± 5 °F and
resets at 38 ± 5°F).
2. A high-pressure switch to protect against excessive discharge pressures due to a blocked condenser coil or a condenser motor failure, (opens at
380 ± 10 psig and resets at 300 ± 10 psig).
3. A low-pressure switch to protect against loss of
refrigerant charge, (opens at 7 ± 3 psig and resets
at 22 ± 5 psig).
The above pressure switches are hard-soldered to the
unit. The refrigeration system is monitored and controlled. On any fault, the system will be affected by any
safety/preventive action.
The unit control board monitors the temperature limit
switch of electric heat units and the temperature limit
switch and the gas valve of gas furnace units.
44
The following sequence describes the operation of the
electric heat section.
Single-stage heating (applies only to 5, 7 & 10 kW
230V heaters and to 7, 10, & 15 kW 460V and 575V
heaters. All other heaters MUST use a two-stage thermostat):
a.
Upon a call for heat by the thermostat, the heater
sequencer (1S) will be energized. After completing
the specified fan on delay for heating, the UCB will
energize the blower motor.
b.
The thermostat will cycle the electric heat to satisfy
the heating requirements of the conditioned space.
Two-stage heating (applies only to 15, 20 and 30 kW
230V heaters and 20 and 30 kW heater 460V and
575V heaters.):
a.
Upon a call for first-stage heat by the thermostat, the
heater sequencer (1S) (15, 20, 30 kW 230 volt) and
contactor (2M) (20, 30 kW 460 and 575 volt) will be
energized. After completing the specified fan on
delay for heating, the UCB will energize the blower
motor.
Unitary Products Group
170651-YIM-A-1105
RESET
If the second stage of heat is required, heater
sequencer (2S) (12, 20, 30 kW 230 volt) or contactor
(3M) (20, 30 kW 460 and 575 volt) will be energized.
After completing the specified fan on delay for heating, the UCB will energize the blower motor.
b.
The thermostat will cycle the electric heat to satisfy
the heating requirements of the conditioned space.
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 shutting down the
heater and energizing the blower.
TABLE 30: ELECTRIC HEAT LIMIT CONTROL
SETTING
VOLTAGE
230-1-60
kW
º
TEMPERATURE LIMIT SWITCH Open Temp F
575-3-60
It is important that the anticipator setpoint be correct.
Too high of a setting will result in longer heat cycles and
a greater temperature swing in the conditioned space.
Reducing the value below the correct setpoint will give
shorter “ON” cycles and may result in the lowering of
the temperature within the conditioned space. Refer to
Table 31 for the required heat anticipator setting.
TABLE 31: ELECTRIC HEAT ANTICIPATOR
SETPOINTS
HEATER
KW
VOLTAGE
SETTING, AMPS
TH1
TH2
5
0.35
-
7
0.35
-
10
0.35
-
0.35
0.19
20
0.35
0.38
30
0.35
0.38
15
230-3-60
1
140
7
0.35
-
7
1,3
140
10
0.35
-
10
1,2,3
140
15
0.35
-
15
2,4,6
140
20
0.37
0.29
1,2,3,4,5
140
30
0.37
0.29
6
150
10
0.35
-
30
1,2,3,4,5,6
150
15
0.35
-
5
1,2,3
140
20
0.37
0.29
7
1,2,3
140
30
0.37
0.29
10
1,2,3
150
15
2,4,6
140
20
1,2,3,4,5,6
150
1,3,5
160
2,4,6
150
30
460-3-60
HEAT ANTICIPATOR SETPOINTS
5
20
230-3-60
Remove the call for heating by lowering the thermostat
setting lower than the conditioned space temperature.
This resets any flash codes.
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
460-3-60
575-3-60
GAS HEATING SEQUENCE OF OPERATIONS
(SINGLE STAGE)
When the thermostat calls for heating, the low-voltage
control circuit from “R” to “W1” and “G” is completed,
through the UCB. The heat relay “RW1” is energized.
The “RW1-2” contacts close energizing the draft motor
control (DMC). The draft motor control contacts close
and start the draft motor. As the speed of the draft
motor reaches approximately 2500 RPM, the centrifugal switch contact, located on the end of the draft motor
shaft, closes to power the ignition module (IC), through
the “RW1-1” contacts.
Ignition module “IC” will immediately start the igniter
sparking and will open the redundant valve located
inside the main gas valve “GV” to allow a flow of gas to
Unitary Products Group
45
170651-YIM-A-1105
the carryover tube. Only after the pilot flame has been
ignited and the presence of pilot flame detected at the
“IC” by a signal sent back through the flame sensor is
sparking terminated and the main gas valve opened.
Gas flows into each of the main burners and is ignited
from the carryover tube flame.
After completing the specified fan on delay for heating,
the UCB will energize the blower motor.
If “IC” fails to detect a pilot flame, it will continue to try
for a maximum of 85 seconds to ignite the pilot tube. If
the pilot flame is not detected, then “IC” will lock out
furnace operation for five minutes or until 24V power is
removed from the module either at the unit or by resetting the room thermostat.
When the thermostat satisfies de-energizing the
“RW1”, thus opening the gas valve. The blower motor
will continue to run after the furnace is shut down until
the specified fan off delay for heating has been satisfied. The UCB will de-energize the blower motor.
REDUNDANT
VALVE
MAIN VALVE
GAS MAIN
GAS
VALVE
TO PILOT BURNER
TO MAIN
BURNER
FIGURE 18 - GAS VALVE PIPING
When the thermostat calls for the first stage of heating,
the low-voltage control circuit from “R” to “W1” is completed. A call for heat passes through the UCB to the
ignition control board (ICB). The UCB monitors the
“W1” call and acts upon any call for heat. Once voltage
has been sensed at “W1”, the UCB will initiate the fan
on delay for heating, energizing the indoor blower after
the specified delay has elapsed.
When the thermostat has been satisfied, heating calls
are ceased. The GV is immediately de-energized. The
blower is de-energized after the fan off delay for heating has elapsed. The draft motor performs a 25-second
post purge.
GAS HEATING SEQUENCE OF OPERATION
(2 STAGE)
When there is a W1 call for heat, the heat relay is energized by the unit control board. The heat relay contacts
immediately close energizing the ignition control board.
The ignition control board checks the state of the limits
and the centrifugal switch. If they are in the expected
state, then the draft motor contact on the ignition control board closes energizing the draft motor. As the
speed of the draft motor reaches approximately 2500
rpm, the centrifugal switch located on the end of the
draft motor shaft closes and the ignition control board
starts a 15 second pre-purge period. After the prepurge period the ignition control board will simultaneously start the igniter sparking and open the pilot gas
valve to allow flow of gas to the pilot burner. After the
pilot flame is sensed by the flame sensor the igniter
sparking ceases. After the pilot flame stability is proven
the ignition control board applies power to the main gas
valve for full fire operation. Gas flows into each of the
main burners and is ignited from the pilot burner flame.
After completing the specified fan on delay for heating,
the unit control board will energize the blower motor.
One minute after main burner ignition the ignition control board will reduce the manifold pressure and draft
motor speed for low fire operation.
When there is a W2 call for heat, the sequence above
is the same except for the reduction to low fire operation after one minute. If a W2 call for heat comes after a
W1 ignition sequence is started, then the ignition control either finishes the ignition sequence and continues
in the full fire operation or immediately calls for full fire
operation.
An automatic 2 stage operation feature is available for
use with a single stage thermostat. To activate the
automatic 2 stage feature install a jumper between R
and W2 on the terminal strip of the unit control board.
The ignition control board interprets the continuous
24V power on W2 terminal as automatic 2 stage operation. Therefore, when it receives a call for heat from a
single stage thermostat it will start the automatic 2
stage operation. Upon receiving a call for heat signal
the ignition control board will sequence the same as a
W1 only call for heat above for 10 minutes. After 10
minutes, the ignition control board will move to full firing
rate until the call for heat is satisfied. Each time a call
for heat is received the ignition control board will go
through this same sequence.
When the call for heat is satisfied, the unit control
board de-energizes heat relay which signals the igni-
46
Unitary Products Group
170651-YIM-A-1105
tion control board to close both the main and pilot
valves. The unit control board will de-energize the
blower motor after the selected time and the ignition
control board will de-energize the draft motor after a
specific time.
GAS HEATING OPERATION ERRORS
TEMPERATURE LIMIT
If the UCB senses zero volts from the high temperature
limit, the indoor blower motor is immediately energized.
When the UCB again senses 24 volts from the temperature limit, the draft motor will perform a 25-second
post-purge and the indoor blower will be de-energized
following the elapse of the fan off delay for heating.
The temperature limit is monitored at all times.
If the temperature limit opens three times within one
hour, it will lock-on the indoor blower motor and a flash
code is initiated (See Table 36).
GAS VALVE
The UCB continuously monitors the GV. Any time the
UCB senses voltage at the GV without a call for heat
for a continuous five-minute period, the UCB will lockon the indoor blower and a flash code is initiated
(Table 36). When voltage is no longer sensed at the
GV, the UCB will de-energize the indoor blower following the elapse of the fan off delay for heating.
If voltage has been sensed at the GV for at least 15
seconds during the fan on delay for heating and GV
voltage or “W1” is lost, the indoor blower is forced on
for the length of the fan off delay for heating.
2. Centrifugal Switch (CS) - If the draft motor should
fail, the centrifugal switch attached to the shaft of
the motor prevents the ignition control and gas
valve from being energized.
3. Redundant Gas Valve - This valve is an integral
part of the main gas valve and is located up stream
of the main gas valve. Should the main gas valve
fail in the open position, the redundant valve
serves as a back-up and shuts off the flow of gas.
4. Flame Sensor Rod / 100% Ignition Control LockOut - The flame rods and controls are located per
Proper Flame Adjustment Figure 21. If an ignition
control fails to detect a signal from the flame sensor indicating the pilot flame is properly ignited,
then the main gas valve will not open. It will continue to try and ignite the pilot for a maximum of 85
seconds, then if the pilot flame is not detected, the
ignition control will lock out furnace operation until
24V power is removed from the module either at
the unit or by resetting the room thermostat.
5. Rollout Switch (RS) - This switch is located in the
burner vestibule. In the event of a sustained main
burner flame rollout, it shuts off the ignition control
and closes the main gas valve.
NOTE: The power must be removed from the iginition
control to reset after a rollout switch trip.
6. Auxiliary limit switch (AUX) - This control is located
inside the heat exchanger compartment and is set
to open at 190°F. It is a manual reset switch. If
AUX trips, then the primary limit has not functioned
correctly. Replace the primary limit.
SAFETY CONTROLS
The unit control board monitors the temperature limit
switch and the gas valve of gas furnace units.
The control circuit includes the following safety controls:
1. Limit Control (LS) - This control is located inside
the heat exchanger compartment and is set to
open at the temperature indicated in the Gas Heat
Limit Control Setting Table 32. It resets automatically. The limit switch operates when a high temperature condition, caused by inadequate supply
air flow occurs, thus shutting down the ignition control and closing the main gas valve and energizing
the blower.
Unitary Products Group
TABLE 32: SINGLE STAGE GAS HEAT LIMIT
CONTROL SETTING
Capacity, MBH
Units
(Tons)
Input
Output
Limit Control
Opens, ºF
3
50
40
165
4
75
60
165
3
100
80
165
4
125
100
165
5
100
80
165
5
125
100
165
6
100
80
165
6
125
100
165
47
170651-YIM-A-1105
TABLE 33: 2 STAGE GAS HEAT LIMIT CONTROL
SETTING
Input MBH
Output MBH
Limit
Control
Units
(Tons) 1st Stage 2nd Stage 1st Stage 2nd Stage Opens,
ºF
3
45
75
36
61
240
3
69
115
55
92
185
4
45
75
36
61
240
4
75
125
60
101
210
5
45
75
36
61
210
5
75
125
60
101
210
6
45
75
36
61
210
6
75
125
60
101
210
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.
FLASH CODES
6. Check the unit supply air (CFM). See “CHECKING
SUPPLY AIR CFM” on page 40.
The UCB will initiate a flash code associated with
errors within the system. Refer to UNIT CONTROL
BOARD FLASH CODES Table 36.
7. Measure evaporator fan motor's amp draw.
8. Set the room thermostat fan switch to off.
RESETS
9. Turn unit electrical power off.
Remove the call for heating by lowering the thermostat
setting lower than the conditioned space temperature.
This resets any flash codes.
OPERATING INSTRUCTIONS
1. Turn unit electrical power on.
HEAT ANTICIPATOR SETPOINTS
It is important that the anticipator setpoint be correct.
Too high of a setting will result in longer heat cycles
and a greater temperature swing in the conditioned
space. Reducing the value below the correct setpoint
will give shorter “ON” cycles and may result in the lowering of the temperature within the conditioned space.
TABLE 34: GAS HEAT ANTICIPATOR SETPOINTS
Gas Valve
2. Set the room thermostat setting to lower than the
room temperature.
3. First stage compressors will energize after the
built-in time delay (five minutes).
4. The second stage of the thermostat will energize
second stage compressor if needed.
POST START CHECK LIST
Anticipator Setpoint
Honeywell VR8204M
0.60 amp
White-Rodgers 36E36
0.54 amp
1. Verify proper system pressures for both circuits.
2. Measure the temperature drop across the evaporator coil.
START-UP (COOLING)
PRESTART CHECK LIST
3. Measure the system Amperage draw across all
legs of 3 phase power wires.
After installation has been completed:
4. Measure the condenser fan amp draw.
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Unitary Products Group
170651-YIM-A-1105
SHUT DOWN
POST-START CHECK LIST (GAS)
1. Set the thermostat to highest temperature setting.
After the entire control circuit has been energized and
the heating section is operating, make the following
checks:
2. Turn off the electrical power to the unit.
START-UP (GAS HEAT)
1. Check for gas leaks in the unit piping as well as the
supply piping.
PRE-START CHECK LIST
Complete the following checks before starting the unit.
1. Check the type of gas being supplied. Be sure that
it is the same as listed on the unit nameplate.
2. Make sure that the vent and combustion air hoods
have been properly installed.
OPERATING INSTRUCTIONS
This furnace is equipped with an intermittent
pilot and automatic re-ignition system. DO
NOT attempt to manually light the pilot.
TO LIGHT PILOT AND MAIN BURNERS:
1. Turn “off” electric power to unit.
2. Turn room thermostat to lowest setting.
3. Turn gas valve knob or switch to “on” position.
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warning exactly
could result in serious injury, death or property
damage.
Never test for gas leaks with an open flame.
use a commercially available soap solution
made specifically for the detection of leaks to
check all connections. A fire or explosion may
result causing property damage, personal
injury or loss of life.
2. Check for correct manifold gas pressures. See
“Checking Gas Input” on page 51.
3. Check the supply gas pressure. It must be within
the limits shown on rating nameplate. Supply
pressure should be checked with all gas
appliances in the building at full fire. At no time
should the standby gas line pressure exceed 13",
nor the operating pressure drop below 5.0" for
natural gas units. If gas pressure is outside these
limits, contact the local gas utility for corrective
action.
4. Turn “on” electric power to unit.
5. Set room thermostat to desired temperature.
(If thermostat “set” temperature is above room temperature, pilot burner ignition will occur and, after
an interval to prove pilot flame, main burners will
ignite).
TO SHUT DOWN:
1. Turn “off” electric power to unit.
2. Depress knob of gas valve while turning to “off”
position or position the switch to the “off” position.
FIGURE 19 - TYPICAL SINGLE STAGE GAS
VALVES
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49
170651-YIM-A-1105
³21´³2))´&21752/
B U R N E R A S S E M B L Y B R A C K E T
5(*8/$725$'-³/2´
81'(56&5(:
F L A M E S E N S O R B U L B
5(*8/$725$'-³+,´
81'(56&5(:
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81'(56&5(:
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FIGURE 21 - PROPER FLAME ADJUSTMENT
PILOT CHECKOUT
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The pilot flame should envelope the end of the flame
sensor. To adjust pilot flame, (1) remove pilot adjustment cover screw, (2) increase or decrease the clearance for air to the desired level, (3) be sure to replace
cover screw after adjustment to prevent possible gas
leakage.
FIGURE 20 - TYPICAL 2 STAGE GAS VALVES
MANIFOLD GAS PRESSURE ADJUSTMENT
Adjustments to the high-fire and low-fire (2 stage) gas
flow may be made by turning the pressure regulator
adjusting screws on the automatic gas valve.
Adjust as follows:
1. Remove the adjustment screw cap(s) on the regulator.
2. To decrease the gas pressure, turn the adjusting
screw counterclockwise.
3. To increase the gas pressure, turn the adjusting
screw clockwise.
4. Replace adjustment screw caps.
NOTE: The factory set high-fire manifold pressure for
Put the system into operation and observe through
complete cycle to be sure all controls function properly.
BURNER INSTRUCTIONS
To check or change burners, pilot or orifices, CLOSE
MAIN MANUAL SHUT-OFF VALVE AND SHUT OFF
ALL ELECTRIC POWER TO THE UNIT.
1. Remove the screws holding either end of the manifold to the burner supports.
2. Open the union fitting in the gas supply line just
upstream of the unit gas valve and downstream
from the main manual shut-off valve.
3. Remove the gas piping closure panel.
4. Disconnect wiring to the gas valves and spark ignitors. Remove the manifold-burner gas valve
assembly by lifting up and pulling back.
these furnaces is 3.50 IWG. The actual manifold pressure depends on the local fuel heating
value.
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Unitary Products Group
170651-YIM-A-1105
TABLE 35: GAS RATE - CUBIC FEET PER HOUR1
1/2 cu. ft.
1 cu. ft.
10
180
360
12
150
300
14
129
257
16
113
225
18
100
200
20
90
180
22
82
164
24
75
150
26
69
138
28
64
129
30
60
120
32
56
113
34
53
106
36
50
100
38
47
95
40
45
90
42
43
86
44
41
82
46
39
78
48
37
75
50
36
72
52
35
69
54
34
67
56
32
64
58
31
62
60
30
60
FIGURE 22 - TYPICAL FLAME APPEARANCE
Burners are now accessible for service.
Reverse the above procedure to replace the assemblies. Make sure that burners are level and seat at the
rear of the heat exchanger.
BURNER AIR SHUTTER ADJUSTMENT
Adjust burner shutters so no yellow flame is observed
in the heat exchanger tubes.
CHECKING GAS INPUT
NATURAL GAS
1. Turn off all other gas appliances connected to the
gas meter.
2. With the furnace turned on, measure the time
needed for one revolution of the hand on the smallest dial on the meter. A typical gas meter usually
has a 1/2 or a 1 cubic foot test dial.
3. Using the number of seconds for each revolution
and the size of the test dial increment, find the
cubic feet of gas consumed per hour from the Gas
Rate - Cubic Feet Per Hour (Table 35).
If the actual input is not within 5% of the furnace rating
(with allowance being made for the permissible range
of the regulator setting), replace the orifice spuds with
spuds of the proper size.
Size of Test Dial
Seconds for one
rev.
1.
By actual measurement, it takes 38 seconds for the hand on
the 1-cubic foot dial to make a revolution with a 100,000
Btuh furnace running. Using this information, located 38
seconds in the first column in the table above. Read across
to the column headed “1 Cubic Foot”, where you will see
that 95 cubic feet of gas per hour are consumed by the furnace at that rate. Multiply 95 X 1050 (the Btu rating of the
gas obtained from the local gas company). The result is
99,750 Btuh, which is close to the 100,000 Btuh rating of the
furnace.
NOTE: To find the Btu input, multiply the number of
cubic feet of gas consumed per hour by the
Btu content of the gas in your particular locality
(contact your gas company for this information
- it varies widely from city to city.).
Unitary Products Group
51
170651-YIM-A-1105
After the temperature rise has been determined, the
cfm can be calculated as follows:
ADJUSTMENT OF TEMPERATURE RISE
The temperature rise (or temperature difference
between the return air and the heated air from the furnace) must lie within the range shown on the rating
plate and the data in the Gas Heat Application Table 4.
CFM =
After about 20 minutes of operation, determine the furnace temperature rise. Take readings of both the return
air and the heated air in the ducts (about six feet from
the furnace) where they will not be affected by radiant
heat. Increase the blower cfm to decrease the temperature rise; decrease the blower cfm to increase the
rise. Refer to the Blower Motor and Drive Data
Table 28.
Btuh Input x 0.8
108
. x oF Temp. Rise
DR036 Charging Chart
300
115°F
Outdoor
280
260
Discharge Pressure (psig)
105°F
Outdoor
240
95°F
Outdoor
220
200
85°F
Outdoor
180
160
75°F
Outdoor
140
65°F
Outdoor
120
60
65
70
75
80
85
90
95
100
105
Suction Pressure (psig)
FIGURE 23 - DR036 CHARGING CURVES
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170651-YIM-A-1105
DR048 Charging Chart
115°F
Outdoor
300
280
105°F
Outdoor
Discharge Pressure (psig)
260
240
95°F
Outdoor
220
85°F
Outdoor
200
180
75°F
Outdoor
160
65°F
Outdoor
140
120
60
65
70
75
80
85
90
95
100
105
Suction Pressure (psig)
FIGURE 24 - DR048 CHARGING CURVES
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53
170651-YIM-A-1105
DR060 Charging Chart
320
115°F
Outdoor
300
Discharge Pressure (psig)
280
105°F
Outdoor
260
240
95°F
Outdoor
220
85°F
Outdoor
200
180
75°F
Outdoor
160
140
65°F
Outdoor
120
60
65
70
75
80
85
90
95
100
105
Suction Pressure (psig)
FIGURE 25 - DR060 CHARGING CURVES
54
Unitary Products Group
170651-YIM-A-1105
DR072 Charging Chart
340
115°F
Outdoor
320
Discharge Pressure (psig)
300
105°F
Outdoor
280
260
95°F
Outdoor
240
85°F
Outdoor
220
200
75°F
Outdoor
180
160
65°F
Outdoor
140
55
60
65
70
75
80
85
90
95
Suction Pressure (psig)
FIGURE 26 - DR072 CHARGING CURVES
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170651-YIM-A-1105
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.
Shut off all electric power to the unit prior to
any of the following maintenance procedures
to prevent personal injury.
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:
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 compressors are operating
but the supply air blower motor does not energize after
a short delay (the room thermostat fan switch is in the
“AUTO” position).
1. Turn the thermostat fan switch to the ON position.
If the supply air blower motor does not energize, go
to Step 3.
2. If the blower motor runs with the fan switch in the
ON position but will not run after the compressor
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 contactor is pulled in. Check
for loose wiring between the contactor and the supply air blower motor.
56
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.
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).
1. If installed, check the position of the economizer
blades. If the blades are open, the economizer is
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,
Unitary Products Group
170651-YIM-A-1105
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 M1 is not pulled 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.
9. If 24 volts is present at the UCB Y1 terminal and
none of the protection switches have opened, the
UCB may have locked out the compressor for
repeat trips. The UCB should be flashing an alarm
code. If not, press and release the ALARMS button
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on the UCB. 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-N-Lock plug, and in the wiring from the MateN-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 volts at the Y1
“ECON” terminal. If 24 volts is not present, check
for loose wiring from the Y1 “OUT” terminal to the
Mate-N-Lock plug, a poor connection between the
UCB and economizer Mate-N-Lock plugs, loose
wiring from the Mate-N-Lock plug to the 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 though the economizer 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 energizes, there is a
fault in the economizer wiring or actuator.
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170651-YIM-A-1105
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.
15. If none of the above correct the error, replace the
UCB.
GAS HEAT 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.
NOTE: To find the Btu input, multiply the number of
cubic feet of gas consumed per hour by the
Btu content of the gas in your particular locality
(contact your gas company for this information
- it varies widely from city to city.).
58
The furnace may shut down on a high temperature condition during the procedure. If this
occurs, the UCB energize the supply air blower
motor until the high temperature limit has
reset. Caution should be used at all times as
the supply air blower may energize regardless
of the room thermostat fan switch position.
On calls for heating, the draft motor operates and the
furnace lights but the supply air blower motor does not
energize after a short delay (the room thermostat fan
switch is in “AUTO” position).
1. Place the thermostat fan switch in the “ON” position. If the supply air blower motor energizes, go to
Step 10.
2. If the supply air blower motor does not energize
when the fan switch is set to “ON,” check that line
voltage is being supplied to the contacts of the M2
contactor, and that the contactor is pulled in. Check
for loose wiring between the contactor and the supply air blower motor.
3. If M2 is pulled in and voltage is supplied at M2,
lightly touch the supply air blower motor housing. If
it is hot, the motor may be off on inherent protection. Cancel any thermostat calls and set the fan
switch to “AUTO”, wait for the internal overload to
reset. Test again when cool.
4. If M2 is not pulled in, check for 24 volts at the M2
coil. If 24 volts is present at M2 but M2 is not pulled
in, replace the contactor.
5. 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.
6. If 24 volts is not present at M2, check that 24 volts
is present at the supply air blower motor terminal
on the UCB. If 24 volts is present at the UCB terminal, check for loose wiring between the UCB and
M2.
Unitary Products Group
170651-YIM-A-1105
7. If 24 volts is not present at the UCB supply air
blower motor terminal, check for 24 volts from the
room thermostat. If 24 volts is not present from the
room thermostat, check for the following:
a.
Proper operation of the room thermostat (contact
between R and G with the fan switch in the “ON”
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.
8. 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.
9. If the thermostat and UCB are properly wired,
replace the UCB.
10. If the blower motor runs with the fan switch in the
“ON” position but does not run shortly after the furnace has ignited when the fan switch is in the
“AUTO” position, check the room thermostat for
contact between R and G during “W1” calls.
On calls for heating, the supply air blower operates but
the draft motor does not (the room thermostat fan
switch is in the “AUTO” position).
1. The draft motor has inherent protection. If the
motor shell is hot to the touch, wait for the internal
overload to reset.
2. If the motor shell is cold with the room thermostat
calling for heat, check 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 “W1” terminal is connected to the “W1” terminal of the UCB, and for
loose wiring.
3. Check if the Draft Motor Control (DMC) is not
pulled in, check for 24 volts at the DMC terminals
“G” and “C”. If 24 volts is present, replace the
DMC. If 24 volts is not present, check for a loose
24 volt connection back to terminal “H1” on the
UCB.
On a 2 stage model, the draft motor is a 230 volt
motor on all models regardless of unit supply voltage. Verify that terminal "L1" on the ignition control
board has a minimum of 187 volts present. If terminal "L1" does not have the minimum voltage
present, then check the wiring to the ignition con-
Unitary Products Group
trol board on all models and on 460V and 575V
models check the transformers ahead of the ignition board. If "L1" does have the minimum voltage
present, then verify minimum voltage is present at
terminal "IND HIGH" on the ignition control board.
If minimum voltage is present at "IND HIGH", then
draft motor or its run capacitor is at fault and will
require replacement.
4. Check if line voltage is present at the DMC terminals “COM” to “NO”. If the line voltage is present
replace the DMC. If line voltage is not present
check voltage from terminal “L3” of M1 contactor to
terminal “NO” on the DMC, if line voltage is present
replace the draft motor.
On a 2 stage models, if the minimum voltage is
present at terminal "L1" and not present at terminal
"IND HIGH", then verify that the LED on the ignition
control board indicates a heartbeat defined as a
constant flashing of the LED. If the led does not
flash, then check the 24V continuous power circuit
to the ignition control board as well as the common
circuit wiring. If a pause is present between any
number of flashes then a fault code has been set.
At this point, 3 flashes followed by a pause
repeated over and over is an indication that the
centrifugal switch is stuck in the closed position
which can be verified by the presence of 24V
between terminals P2-1 and P1-8. In this case the
ignition control board will not energize the draft
motor for safety reasons. Replace the draft motor
or repair the centrifugal switch in the bottom of the
draft motor. If all tests are as expected and the
board has constant flashing of the LED, then
replace the ignition control board.
The draft motor runs but the furnace does not light and
the sparker does not spark.
1. The ignition control (IC) may be locked out due to
either a flame roll out or 100% shut off. These
safety features are described above. If lock-out has
occurred, 24V must be removed from the ignition
controls. This is done at the unit or by resetting the
room thermostat. After resetting 24V, check for
proper furnace operation. If lock-out continues to
occur, locate the source of the problem and correct.
2. Check all 24 volt connections from the UCB to and
in the gas heat section. Check low voltage connections to the relay (RW1) located in the control box.
3. If the furnace is hot, it may be out on an over-temperature condition, wait for limit reset.
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170651-YIM-A-1105
4. If the furnace is cold, check for 24 volts at terminal
“5” and “7” of RW1. If 24 volts is present, check the
RW1 relay coil terminals “A” and “B”. If 24 volts is
found at the coil replace the RW1 relay.
5. If 24 volts is not present at terminals “5” and “7”
and the RW1 relay coil is pulled in. Check for 24
volts from terminal “5” to “Ground” on the RW1
relay. 24 volts here indicates that the problem is in
the (RS) Roll Out Switch, or the (CS) Centrifugal
Switch.
On two stage models, if 24V is present at terminals
"5" and "7" and the RW1 coil is pulled in then check
verify that the LED on the ignition control board is
constantly flashing. If so, then check wiring
between ignition control board and gas valve. If the
flashing is broken by a pause, then count the
flashes between the pauses to determine the reason for the lockout.
6. With the draft motor running, check for 24 volts at
terminal “TH” to “Ground” on the ignition control
(IC) where the red lead from the draft motor
attaches. If 24 volts is not present, the centrifugal
switch (CS) has not closed or has gone bad. Check
the line voltage to the unit, if it is correct replace the
draft motor. If line voltage is low call the power
company.
On two stage models, if flash code is a 2 then verify that 24V is not present between P2-1 and P1-8.
If 24V is not present, then the centrifugal switch
has not closed. This could be due to low voltage to
the draft motor. Verify that the voltage at terminal
"IND HIGH" is a minimum of 187 volts. If it is at
least 187 volts, then replace the draft motor or
repair the centrifugal switch in the bottom of the
draft motor. If the voltage is less than 187 volts,
then call the power company.
1. Check to make sure gas is being supplied to the
unit. Make sure that the gas pressure to the unit is
within the proper limits as described in the “POST
START CHECK LIST” on page 49 and that the pilot
adjust screw is allowing some flow of gas as
described in “PILOT CHECKOUT” on page 50.
2. Check all wiring between the ignition control and
the gas valve. Check to make sure the ground connections are intact.
3. If the wiring is intact, check for 24 volts across terminals “PV” and “GROUND” on the ignition control.
If 24 volts is not present, replace the ignition control.
4. If 24 volts is present, remove the pilot burner and
remove the pilot orifice from the pilot burner. The
orifice is removed in the direction opposite the flow
of gas. Inspect the orifice for obstruction. If it is
clear, replace the main gas valve.
The ignitor sparks at the pilot burner but the pilot does
not ignite and a gas odor is detected at the draft motor
outlet.
1. Adjust the pilot adjust screw on the gas valve as
described in “PILOT CHECKOUT” on page 50.
2. Check the supply pressure as described in “POST
START CHECK LIST” on page 49. Make adjustments as necessary.
3. Check the pilot orifice and pilot burner for obstruction as described in paragraph above. Clean as
needed but the problem should not be the gas
valve.
The pilot burner ignites but the ignitor continues to
spark and the main burners do not ignite.
7. If 24 volts is present at the ignition control, check
all control wiring at the ignition control and the wire
to the ignitor. Check that the ground wires from the
ignition control, the gas valves and pilot burners
are all intact and making good electrical connection. Check to make sure that the ceramic insulator
on the pilot ignitor or sensors is not broken or
cracked, if all are intact, replace the ignition control
IC.
1. Make the same checks and adjustment as
described in “PILOT CHECKOUT” on page 50.
The draft motor runs and the ignitor sparks at the pilot
burner but the pilot does not ignite and a gas odor is
not detected at the draft motor outlet.
4. Make sure that the ground connections at the pilot
burner, gas valve and ignition control are intact.
60
2. Check the supply pressure as described in “POST
START CHECK LIST” on page 49. Make adjustments as necessary.
3. Make sure that the pilot burner is not bent or damaged.
Unitary Products Group
170651-YIM-A-1105
Check the ignitor wire for good electrical connection. If all are intact, replace the ignition control.
The pilot burner lights and the spark stops but the main
burners do not light.
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 36: UNIT CONTROL BOARD FLASH CODES
1. Check electrical connections between the ignition
control and the gas valve. If intact, check for 24
volts across terminals “MV” and “GROUND” terminals. If no voltage detected, replace ignition control. If voltage is present, replace gas valve.
Furnace lights with roll-out or one burner has delayed
ignition.
1. Make sure that the pilot burner is aligned properly
with the flame sensor as described in “PILOT
CHECKOUT” on page 50.
Main burners light but exhibit erratic flame characteristics.
1. Adjust air shutters as described in “BURNER AIR
SHUTTER ADJUSTMENT” on page 51.
2. Check the main burner orifices for obstruction and
alignment. Removal procedure is described in
BURNER INSTRUCTIONS on page 50. Clean or
replace burner orifices and burners as needed.
UNIT FLASH CODES
Flash Code
Description
On Steady
Control Failure - Replace Control
Heart Beat
Normal Operation
1 Flash
2 Flashes
Control Waiting ASCD1
3 Flashes
HPS1 - Compressor Lock out
4 Flashes
HPS2 - Compressor Lock out
5 Flashes
LPS1 - Compressor Lock out
6 Flashes
LPS2 - Compressor Lock out
7 Flashes
FS1 - Compressor Lock out
8 Flashes
FS2 - Compressor Lock out
9 Flashes
Ignition Control Locked Out/
Ignition Control Failure / Limit Switch Trip / No Jumper
Plug in Heat Section
10 Flashes
11 Flashes
Current alarms or active restrictions 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.
Unitary Products Group
Compressors Locked Out On Low
Outdoor Air Temperature1
Compressors Locked Out Because The
Economizer Is Using Free Cooling1
12 Flashes
Fan Overload Switch Trip
13 Flashes
Compressor Held Off Due To Low Voltage1
14 Flashes
EEPROM Storage Failure (Control Failure)
OFF
1.
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.
Not Applicable
No Power or Control Failure
These flash codes do not represent alarms.
TABLE 37: IGNITION CONTROL BOARD FLASH
CODES
Flash Code
Description
On Steady
Control Failure - Replace Control
Heart Beat
Normal Operation
1 Flash
Not Applicable
2 Flashes
Pressure / Centrifugal Switch Open with Inducer On
3 Flashes
Pressure / Centrifugal Switch Closed with Inducer Off
4 Flashes
Not Applicable
5 Flashes
Lock Out From Too Many Flame Losses
6 Flashes
High Temperature Switch Open
7 Flashes
Rollout Switch Open
8 Flashes
Flame Present With Gas OFF
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170651-YIM-A-1105
62
Unitary Products Group
170651-YIM-A-1105
Unitary Products Group
63
Subject to change without notice. Printed in U.S.A.
Copyright © 2005 by Unitary Products Group. All rights reserved.
Unitary
Products
Group
170651-YIM-A-1105
Supersedes: 127595-YIM-B-0805
5005
York
Drive
Norman
OK
73069
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