Operating instructions

17
NOTICE: A qualified 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
piping.
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.
Always use an external regulator for all propane/L.P.G. heaters 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.
Figure 12: Gas Connection
Pipe Coupling
Pipe
Manual Shutoff
Valve
To Heater
Valve
Stainless
Flexible Tube
Tee Joint
Pipe Nipple
Cap
Sediment Trap
3" Minimum
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
sulfide 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
flow 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. Refer to Figure 12.
A sediment trap should be installed upstream to prevent moisture and con-
taminants from passing through the pipe to appliance controls and burners.
Failure to do so could prevent the appliance from operating reliably. Refer to Figure 12.
CONNECTING THE GAS