Part Number 550-142-302/0520
CGi
SERIES 4 — GAS-FIRED WATER BOILER — Boiler Manual
4
Contents
How it works . . . ................................................. 2
Hazard definitions ............................................... 4
Please read before proceeding ............................ 5
1 Prepare boiler location ...................................6–11
2 Prepare boiler ...............................................12–13
3 Venting ......................................................... 14-19
4 Water piping ................................................. 20-29
5 Gas piping ......................................................... 30
6 Field wiring ....................................................... 31
7 Start-up ........................................................ 32-35
8 Check-out procedure — checklist ...................... 36
9
Department of Energy Compliance ................... 37
9a Operation ..................................................... 38-43
10 Service and maintenance ............................. 44-48
11 Troubleshooting ............................................ 49-58
12 Replacement parts ....................................... 60-66
13 Dimensions and ratings ................................ 67-68
Handling ceramic fiber and fiberglass materials .............. 69
Hazard definitions
The following defined terms are used throughout this manual to bring attention to the presence of hazards of various
risk levels or to important information concerning the life of the product.
Indicates presence of hazards that will cause severe personal injury, death or substantial property
damage.
Indicates presence of hazards that can cause severe personal injury, death or substantial property
damage.
Indicates presence of hazards that will or can cause minor personal injury or property damage.
Indicates special instructions on installation, operation or maintenance that are important but
not related to personal injury or property damage.
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