Connecting The Gas - Monessen Hearth DEB20 Installation And Operating Instructions Manual

CONNECTING THE GAS

NOTICE: A qualified gas appliance installer must connect the heater to the gas supply. Consult
all local codes.
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
appliance. See Figure 15.
To Heater
Valve
IMPORTANT: Hold heater valve firmly with a wrench to prevent movement when connecting to inlet pipe.
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/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.
20
1
/ " NPT pressure tapping point should be installed upstream of the
8
Pipe Coupling
Stainless
Flexible Tube
Manual Shutoff
Valve
Figure 15 - Gas Connection
Pipe
Locations that the Pressure
Tapping Point May Be Installed
Gas Supply
Inlet
44D0060