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81D0107 19
Pipe Coupling
To Heater
Valve
Gas Supply
Inlet
CONNECTING THE GAS
NOTICE: A qualifi ed gas appliance installer must connect the heater to the gas supply. Consult all local
codes.
IMPORTANT: Hold heater valve firmly with a wrench to prevent movement when connecting to inlet pipe.
Manual Shutoff
Valve
Pipe
Stainless
Flexible Tube
Figure 15 - Gas Connection
Always use an external regulator for all propane/LPG heaters and high pressure one to two-pound systems only, to
reduce the supply tank pressure to a maximum of 13" w.c. This is in addition to the internal regulator in the heater valve.
Locations that the Pressure
Tapping Point May Be Installed
CAUTION
CHECK GAS TYPE: The gas supply must be the same as stated on the heater’s rating plate.
If the gas supply is different, DO NOT INSTALL THE HEATER. Contact your dealer for the
correct model.
CAUTION
Use new black iron or steel pipe. Internally tinned copper or copper tubing can be used
per National Fuel Code, section 2.6.3, providing gas meets hydrogen sulfi de limits, and
where permitted by local codes. Gas piping system must be sized to provide minimum
inlet pressure (Listed on Data Plate) at the maximum fl ow rate (BTU/Hr). Undue pressure
loss will occur if the pipe is too small.
A manual shutoff valve must be installed upstream of the appliance. Union tee and
plugged
1
/8" NPT pressure tapping point should be installed upstream of the appliance.
See Figure 15