WARNINGS 4
BEFORE INSTALLATION 5
Product Receipt 5
Model Identification 5
Ratings and Certifications 5
Installations at Elevation 5
Component Locations 6
General Information 7
GENERAL SAFETY 8
Time/Temperature Relationships in
Scalds 8
INSTALLATION 9
Installation Codes 9
Equipment Base 9
Stacking 9
Clearances 11
Combustion and Ventilation Air 12
Conventional Combustion Air Supply 13
Water Piping 14
Hydronic Heating 17
Domestic Hot Water 20
Pool Heating 22
Gas Supply 25
Electrical Power Connections 26
Field Wiring Connection 28
Venting 32
Changing the Flue Outlet 34
Venting Installation Tips 34
Venting Configurations 35
Sequence of Operation 40
Controls 44
Wiring Diagrams 992C-1262C 54
Wiring Diagram 1532C-2342C 55
START-UP 56
Pre Start-up 56
Start-up 57
OPERATION 60
Lighting Instructions 60
To Turn Off Gas To Appliance 60
MAINTENANCE 61
Suggested Minimum
Maintenance Schedule 61
Preventative Maintenance Schedule 61
APPENDIX 63
Inside Air Contamination 63
WARRANTIES 64
Type H and WH 64
Type P 65
Start-up Checklist 67
Important Instructions for the
Commonwealth of Massachusetts 68
CONTENTS
3
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