Installations at Elevation
5
GENERAL SAFETY
7
Time/Temperature Relationships in
INSTALLATION
8
Installation Codes
8
Equipment Base
8
Clearances
8
Combustion and Ventilation Air
9
Conventional Combustion Air Supply 11
Water Piping
13
Hydronic Heating
15
Applications & Modes
16
Domestic Hot Water
17
Pool Heating
19
Electrical Power Connections
22
Venting
27
Venting Configurations
30
Outdoor Installation
35
Controls
36
User Interface
START-UP
45
Pre Start-up
45
Start-Up
46
OPERATION
50
Lighting Instructions
50
To Turn Off Gas To Appliance
50
TROUBLESHOOTING
50
MAINTENANCE
53
Suggested Minimum
Maintenance Schedule
53
Preventative Maintenance Schedule 54
Filter Maintenance
55
Filter Replacement
55
APPENDIX
56
Inside Air Contamination
56
IMPORTANT INSTRUCTIONS FOR
THE COMMONWEALTH OF
MASSACHUSETTS
57
START-UP CHECKLIST
59
WARRANTY
60
CONTENTS
3