4
Part Number
550-110-290/0219
CGt
GAS-FIRED WATER BOILER — Series 2 —
Boiler Manual
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.
How it works .......................................................2–3
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 .................................................... 20-27
5 Gas piping ............................................................ 28
6 Field wiring .......................................................... 29
7 Start-up ........................................................... 30-32
8 Check-out procedure ............................................ 33
9 Installation and service certificate ....................... 33
10 Operation ........................................................ 34-38
11 Service and maintenance ................................ 39-43
Instruction for the Commonwealth of Massachusetts
44
12 Troubleshooting .............................................. 45-57
Handling ceramic fiber and fiberglass materials 58
13 Replacement parts .......................................... 59-64
14 Dimensions .......................................................... 66
15 Ratings ................................................................. 67
Contents