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
16
Gas Supply
20
Electrical Power Connections
22
Field Wiring Connection
23
Venting
25
Changing the Flue Outlet
27
Venting Installation Tips
28
Venting Configurations
28
Outdoor Installation
33
Controls
33
Heater Sequence of Operation
34
87%-Efficiency Boilers –
Special Instructions
45
Wiring Diagrams
50
START-UP
52
Pre Start-up
52
Start-Up
53
OPERATION
56
Lighting Instructions
56
To Turn Off Gas To Appliance
56
TROUBLESHOOTING
57
MAINTENANCE
58
Suggested Minimum
Maintenance Schedule
58
Preventative Maintenance Schedule
58
APPENDIX
60
Inside Air Contamination
60
WARRANTIES
61
Type H and WH
61
Type P
62
CONTENTS
3