Service Reference Manual
Models HWC Premier 122, 182, 242, 302 123, 183, 243
Disclaimer
Table of Contents
Specifications
Heating Configuration Table Cooling Configuration Table
Models Covered By This Manual
Model Number Guide
Product Serial Numbers, Beginning
Heating Configurations of HW/HWC Units
Cooling Configurations of HWC Units
Summary of Model Revisions/Variations
Physical and Electrical Specifications HWC Units
Physical and Electrical
Performance Ratings
Performance Ratings HWC122/123
Performance Ratings
Performance Ratings HWC182/183
Performance Ratings HWC242/243
Performance Ratings HWC302/303
Blower Performance
Blower Performance HWC Units
Service Reference Manual Dimensions
Wall Sleeve all measurements in inches
Sequence of Operation
HWC123,183,243,303
HW Heating Only Utec 1097 Spark Ignition System
HWC122,182,242,302 Fenwal 2461D Ignition Control
HWC122,182,242,302 Fenwal 05-29 Ignition Control
HW Heating Only Fenwal 05-29 Ignition Control
HWC123,183,243,303 Low Ambient Control HWC122,182,242,302
Blank
Connection Diagram
United Technologies 1097 Spark Ignition System
Simplified Sequence HWC123,183, 243
Refer to Figure
Detailed Sequence follows
L1 Power
L2 Power
Line Voltage
Low Voltage 24 VAC
LIMIT/ROLLOUT Opens
Failed Flame SENSE/TRIAL for Ignition
FAN on
HW Heating Only
Simplified Sequence HW w/UTEC 1097 Board
At pin 6 of the 6-pin ignition wire harness
LIMIT/ROLLOUT Opens
Failed Flame SENSE/TRIAL for Ignition
Blank
HWC122, 182, 242
Fenwal Triton 2461D DSI Ignition Control
Refer to Figure
Second black wire
2 on the contactor
Terminal R on the blower control board
Limit Opens
FAN on
Blank
#39247D2
Simplified Sequence HW w/Fenwal 2461D Board
First black wire 1 on the ignition control
Terminal on the blower control board Low Voltage 24 VAC
Limit Opens
Fenwal 05-29 Ignition Control
Only
Refer to Figure
Power
Limit Opens
FAN on
Blank
Circuits Energized
Simplified Sequence HW w/Fenwal 05-29 Board
First black wire 1 on the ignition module
Circulating air blower capacitor terminal Second black wire
Terminal L-1 on the blower control board Low Voltage 24 VAC
Flame Sense
HWC123, 183, 243, 303 Low Ambient
HWC123,183, 243 Low Ambient Model
HWC122, 182, 242, 302 Low Ambient
HWC122,182, 242 Low Ambient Model
Chassis Removal Evaporator Blower Assembly Removal
Unit Tear Down
Heating Section
Cooling Section
Heat Exchanger Removal
Induced Draft Combustion Blower Removal
Unit Tear Down
Chassis Removal
63 5/8 I.D
Evaporator Blower Assembly Removal
Service Reference Manual Component Location Illustrations
Component Location Illustrations
HW/HWC123,183,243,303
HW/HWC122, 182, 242
HW/HWC Panels
HW/HWC Exterior Louver/Grill Panel
HWC Chassis Assembly
Armstrong P/N
Armstrong P/N 03982D004
10.75 x
Band Armstrong P/N 07407B000 Arms Armstrong P/N 07408B004
63 5/8
16.5 x 25 x
Unit Components
Unit Components
Transformer Specifications
Transformer *1
24 VAC Secondary
208/240 VAC
Gas Valves *7
White-Rodgers 25K49-120
Gas Valve Specifications
Honeywell 8105 Series
24VAC
Heatcraft Blower Control Board IBC-H4C401
Ignition Control Specifications
Ignition Controls *24
Fenwal Triton 2461D
Diagnostics Fenwal Triton 2461D
Triton 2461D Diagnostic Flash Code
Fenw
Integrated Control Specifications
Integrated Blower/Ignition Control *24
United Technologies Model
United Technologies Model 1097-400-1
Heat Mode
Fan On Delay
Fan Off Delay
Induced Draft Blower Specifications
Induced Draft Blower *63
Burner Specifications
Burners *34
Flame Carryover Problems
11 Inshot Burners
Manifold Orifice Specifications
Manifold Orifices *13
Contactor Specifications
Contactor *278
Main High Limit Switch *52
15 Camstat Main Limit Switch
Flame Rollout Switch *55
17 Flame Rollout Switch
Pressure Switch *57
Pressure Switch Specifications
Pressure Switch Problems
Pressure Switches
Blocked Intake
Blocked Flue
What Is Needed for the Tests
Terminology
Word About the Switch Closed Value
Word About the Switch Open Value
Procedure for Checking Pressure Switch
20 Incline Manometer Connection
Compressor Specifications on next
Compressors *262
RLA LRA
Tecumseh Rotary Compressor Specifications
Manufacturer Tecumseh
Top View
Side View
Tecumseh Reciprocating Compressor Specifications
22 Tecumseh Reciprocating Compressor
Copeland Compressor Specifications
Manufacturer Copeland
Layout
24 Copeland Compressor Side View
10 Drier-Filter Specifications Armstrong Part Number
Drier-Filters *301
HWC Capillary Tube Specification Tables
HWC Capillary Tubes *256
26 43267-001 Capillary Tubes
30 43281-001 Capillary Tubes
12 39102B001 Specifications
34 39102B001 Capillary Tubes
Capacitors *271
13 Capacitor Ratings Armstrong
Volts
Dual Single
14 Evaporator Blower Motor Specifications
15 Condenser Fan Motor Specifications
Evaporator Blower Motor Indoor Blower *69
Condenser Fan Motor Outdoor Motor *267
Capacitors-Run *86
16 Run Capacitor Ratings
Armstrong Rating
Fan Blades *268
37 Fan Blades HWC Models 122, 182 & 123
38 Fan Blades HWC Models 242, 302 & 243
Exterior Grill Panels Not Listed in the Parts Lists
39 Exterior Grill Panels
Installation
Installation and Operation in Extremely Cold Weather Areas
HW/HWC Installation and Maintenance Instructions
Location
Installation
Installing With a Wall Sleeve
HW/HWC Installation
Installing Without a Wall Sleeve
HWC Drain Installation
Condensate Drain HWC Models
Required Clearances for Direct Vent Terminals
Removal of Unit from Common Venting System
NOx Insert Removal
Gas Supply Piping
HW/HWC
Temperature Rise
Minimum Required Surface Area for Disposable
Filters
Pressure Regulator
Adjustments Cooling Section HWC models
High Altitude Adjustments U.S. Installa- tions
High Altitude Adjustments Canadian Instal- lations
Cubic Feet Per Revolution 3600 Heating
Installation and Operation in Extremely Cold Weather Areas
Accessories
HW/HWC Accessory Kit Index
Components and accessories. These instructions should
Intended as a general guide only, for use by qualified
Personnel, and do not supersede any national or local
Codes in any way
Wall Sleeve Assembly
CA-239 Wall Sleeve Kit
CA-239 Parts List
CA-239 Wall Sleeve Kit Assembly
Wall Sleeve Installation
Recessed Wall Sleeve Installation
Magic-Pak Installation
Weather Sealing
Wall Sleeve Adaptor Kit Assembly
A242-1 Wall Sleeve Adaptor Kit
Installing the HW/HWC Unit
Attachment to HW/HWC
A242-1 Parts List
A242-1 Wall Sleeve Adaptor Kit Assembly
Assembly
Installation
ALVR42 Architectural Aluminum Louver Facade
Alvr Architectural Aluminum Extended Louver
34961A001 Compressor Vibration Isolator Kit
34961A001 Parts List
ALPKT389-2 Parts List
ALPKT389-2 L.P. Gas Conversion Kit
ALPKT389-2 Orifices
AHALT390-1 Parts List
AHALT390-1 High Altitude Kit
Regulator Natural Gas
Accessories
Regulator Propane
ATIMR466-1 Parts List
ATIMR466-1 Short Cycle Protector Kit
10 ADAPT420-2 Parts List
ADAPT420-2 Chassis Conversion Kit
11 Triton Ignition Control Kit Parts List
Fenwal Triton Ignition Control Kit
TL109 Burner Tray Kit
TL109 Burner Tray
AMUFFKT494-1 Kit Discharge Muffler Installation
AMUFFKT494-1 Discharge Muffler Kit
Parts Lists
HW-1 HWA-9 HWC123, 183, 243, 303S-1
HWC123, 183, 243, 303H-1
HWC3-A-1
HWC3-A-1
COMPRESSOR-AW501ET-089-A4
HWC182-242A-11
HWC182-242A-11
HWC122-242A-10 Revised
HWC122-242A-10
26HWC122A-10 38HWC122A-10 38HWC242A-10
HWC182-9
HWC182-9
HWC242-302-9
HWC242-302-9
HWC-8
REC Stocking Service Level
HWC-8cont
COMP-ZR28K1-PFV
HWC-6/7
HWC-6/7
HWC-5
64HWC302-5A Last letter of the Model # is the Service Level
HWC-5cont
64HWC302-5 a Last letter of the Model # is the Service Level
HWC-4
HWC-4cont
Capacitor 25/5 MFD@370VAC
HWC-3
64HWC302-3A Last letter of the Model # is the Service Level
HWC-3cont
CAP Tube Assy
HWC-2
HWC-2cont
HWC-1
HWC-1cont
Coil Outdoor
HW-1
HW-1cont
HWA-9
HWA-9cont
HWC3-S-1
HWC3-S-1
RELAY-CONDENSER FAN Motor
HWC3-H-1
HWC3-H-1
COMPRESSOR-AW501ET-089-A4
Troubleshooting Performance Charge Weights
Troubleshooting
Performance Tests Installed Performance Tests Bench Tested
Performance
Troubleshooting
Initial Testing
Further Testing
Compressor Checkout
Checking Windings
Example #1
Example #2
Checking the Thermal Overload Device
Troubleshooting
Capacitor Testing
Magic-Pak HW/HWC Capacitor Checkout
Troubleshooting
Determining Capacitance MFD Rating with a Test Cord
Example
Performance Tests Chassis Installed in Unit
HWC122 Performance Test Chassis Installed
HWC182 Performance Test Chassis Installed
Performance Checkout
HWC242 Performance Test Chassis Installed
HWC302 Performance Test Chassis Installed
70 80 Ambient Temperature Chassis Bench Test
Ambient Temperature Chassis Bench Test
HWC Refrigerant Charge Weights
Performance Tests Chassis Bench Tested