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INSTALLING
HEATER
Continued
CONNECTING TO GAS SUPPLY
The gas supply line to your heater must be 1/2 inch in diameter or larger. If the
supply line branches to serve two or more heaters, the line from the branch back to
the gas meter must be doubled or tripled, etc., in size (depending upon the number
of heaters).
Example for 1/2 inch diameter supply line:
If the supply line branches
to serve two heaters, the line diameter from the branch back to the gas meter must
be at least 1 inch. If three heaters are served, the line diameter from the branch
back to the gas meter must be at least 1 1/2 inches.
Note:
If gas supply line total length exceeds forty feet, use a larger diameter pipe.
Use pipe that is the next size larger than the heater control valve fitting.
WARNING
A qualified service person must connect heater to gas
supply. Follow all local codes.
WARNING
Never connect heater to private (non-utility) gas wells.
This gas is commonly known as well-head gas.
IMPORTANT:
Check gas line pressure at gas meter before connecting heater to gas
line. Gas line pressure must be no greater than 14 inches of water. If gas line
pressure is higher, heater regulator damage could occur.
Gas Meter
Figure 6 - Connecting Heater to Utility Gas Line
CAUTION
Use only new, black iron or steel pipe. Internally-tinned
copper tubing may be used in certain areas. Check your
local codes. Use pipe that is 1/2" in diameter or greater
to allow proper gas volume to heater. If pipe is too
small, undue loss of pressure will occur.