Installation Guide

1
I&O manual
1
I&O manual
CONTENTS PAGE
1.SAFETY CONSIDERATIONS....................................................................2
2. INTRODUCTION....................................................................................5
3.CODES AND STANDARDS......................................................................6
3.1 Safety.............................................................................................6
3.2 General Installation .......................................................................6
3.3 Combustion and Ventilation Air .....................................................6
3.4 Duct Systems.................................................................................6
3.5 Acoustical Lining and Fibrous Glass Duct......................................6
3.6 Gas Piping and Gas Pipe Pressure Testing....................................6
3.7 Electrical Connections .................................................................6
3.8 Electrical Power Supply..................................................................6
3.9 Venting...........................................................................................6
4. ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE ......6
5. LOCATION ............................................................................................7
6. INSTALLATION ................................................................................... 8
6.1 Upflow Installation.......................................................................8
6.2 Downflow Installation...................................................................8
6.3 Horizontal Installation.................................................................10
6.4 Filter Arrangement.....................................................................12
6.5 Air Ducts....................................................................................12
7. VENT SYSTEM....................................................................................14
7.1 Vent Connections .......................................................................14
7.2 Venting.......................................................................................14
7.3 Venting Into An Existing Chimney ..............................................14
7.4 Air For Combustion and Ventilation............................................14
7.5 Air Supply Openings and Ducts...................................................15
7.6 Ventilated Combustion Air..........................................................15
7.7 Vent and Supply (Outside) Air Safety Check Procedure..............15
8 GAS SUPPLY AND PIPING....................................................................16
8.1 General .....................................................................................16
8.2 High Altitude Derate..................................................................17
8.3 Propane Gas Conversion...........................................................18
8.4 Gas Piping Connections............................................................18
8.5 Gas Piping Checks.....................................................................19
9 ELECTRICAL CONNECTIONS...............................................................20
9.1 115V Wiring............................................................................20
9.2 Electrical Connection To J-box .................................................20
9.3 Power Cord Installation In Furnace J-box..................................21
9.4 Bx Cable Installation In Furnace J-box......................................21
9.5 24V Wiring..............................................................................21
9.6 Accessories (Field Supplied).....................................................21
9.7 Grounding.................................................................................21
10. START-UP, ADJUSTMENT, AND SAFETY CHECK ...........................23
10.1 General ..................................................................................23
10.2 Start-Up Procedures...............................................................23
10.3 Furnace Start-up.....................................................................23
10.4 Sequence of Operation...........................................................24
10.5 Gas Manifold Pressure Measurement And Adjustment..........25
10.6 Gas Input Rate Measurement (Natural Gas Only)...................25
10.7 Temperature Rise ...................................................................25
10.8 Circulator Blower Speed Adjustment.......................................26
11 OPERATIONAL CHECKS.......................................................................26
12 SAFETY CIRCUIT DESCRIPTION...........................................................27
1 2.1 General...................................................................................27
12.2 Integrated Control Module.......................................................27
12.3 Primary Limit...........................................................................27
12.4 Reverse Flow Swith.................................................................27
12.5 Rollout Limits..........................................................................27
12.6 Pressure Switches...................................................................27
12.7 Flame Sensor.........................................................................27
13 TROUBLESHOOTING............................................................................27
13.1 Electrostatic Discharge (Eso) Precautions.............................27
13.2 Diagnostic Chart.....................................................................27
13.3 Resetting From Lockout.........................................................27
14 SERVICE AND MAINTENANCE PROCEDURES......................................30
14.1 Annual Inspection...................................................................30
14.2 Filters.....................................................................................30
14.3 INDUCED DRAFT AND CIRCULAING BLOWER MOTORS..........30
14.4 FLAME SENSOR (QUALIFIED SERVICER ONLY)......................30
14.5 Burners...................................................................................30
14.6 Cleaning Heat Exchanger.......................................................31
14.7 Before Leaving An Installation...............................................32
14.8 Repair And Replacement Parts.............................................32
15. WIRING DIAGRAMS............................................................................33
Installation，Start-up，Operating and Service and Maintenance Instructions
WARNING
The furnace is designed and approved for use with Natural Gas
and (LP) Propane Gas ONLY. DO NOT BURN ANY LIQUID
FUEL OR SOLID FUEL IN THIS FURNACE.
Burning any unapproved fuel will result in damage to the furnace
heat exchanger, which could result in Fire, Personal Injury, and/or
Property Damage.
FIRE OR EXPLOSION HAZARD
ISO 9001:2008
These furnaces comply with requirements embodied in the
American National Standard / National Standard of Canada ANSI
Z21.47·CSA-2.3 Gas Fired Central Furnaces.
3124627