23
Monessen • AVFL Series Installation Manual • 4099-901 Rev. E • 01/22
D. Connect to Gas
NOTICE:
6
7
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
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permitted by local codes. Gas piping system
must be sized to provide minimum inlet
pressure (Listed on Data Plate) at the maximum
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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. Figure
5.3
A sediment trap should be installed upstream
to prevent moisture and contaminants from
passing through the pipe to appliance controls
and burners. Failure to do so could prevent the
appliance from operating reliable. Figure 5.3
IMPORTANT:
$
&
6 $ & K(B -
ers only, to reduce the supply tank pressure to a maximum
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When tightening the joint to the valve, hold the valve
Test all gas joints from the gas meter to the heater valve for
Q ~ &
DO NOT USE AN OPEN FLAME.
CHECK GAS TYPE: The gas supply must be the
same as stated on the heater’s rating plate. If
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THE HEATER. Contact your dealer for the
correct model.
Connecting directly to an unregulated
propane/LP tank can cause an explosion.
DO NOT USE OPEN FLAME TO CHECK
FOR GAS LEAKS.
GAS LINE IN
GAS LINE IN
Figure 5.3 - Gas Line In
N $ -
tem, the installation must conform with local codes,or in
the absence of local codes with the
National Fuel Gas
Code, ANSI Z223.1/NFPA 54
or
International Fuel Gas
Code.
THIS APPLIANCE IS EQUIPPED FOR
EITHER NATURAL OR PROPANE GAS.
FIELD CONVERSION IS NOT PERMITTED.
WARNING
WARNING
WARNING
WARNING
