For vent damper-equipped models, connect thermostat to blue leads (see Figures 2.4 & 2.4A).What pipe size must be used? The local utility indicates the heating value of natural gas being supplied is 1000 Btu per cu.ft. The distance from the existing gas meter to the installation site is 30 ft. 4331 Example: Boiler Model GB200-4H is to be installed.Install a ground joint union at the gas valve inlet to allow for servicing.Ĭheck local codes and utilities for any special requirements and proce- dures. Install a non-restrictive lubricated plug valve in the gas line close to the boiler. Install a full-sized sediment trap at the low point in gas line upstream of gas valve. Attach vent damper cable to cable clamp on boiler left panel and join the Molex connector (see Figures 2.4 & 2.4A).
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