Procom MNSD300HGA Owner's Operation And Installation Manual page 9

You will notice a color coded
plunger on the inside of the regu-
lator. This is normal. When the in-
let connection fitting is inserted
and tightened, this plunger will
be pushed back by the fitting
making all of the adjustments
for the gas being supplied. DO
NOT REMOVE THE PLUNGER.
The regulator will not work.
The inlet regulator is color coded
for identification of the correct
gas type. Blue is for propane (LP
gas) and yellow is for natural gas.
INLET GAS PRESSURE
MAX 1/2 PSIG (3.5 KPA)
Gas Connection
Figure 4 - Back of Heater
Yellow Natural Gas
Plunger Underneath
Metal Cap
Insert Gas Fitting
for Natural Gas
Figure 5 - Gas Regulator
200233-01B
INSTALLATION
Blue Propane/LP Gas
Plunger Underneath
Dust Cover
Insert Gas Fitting
for Propane/LP Gas
www.usaprocom.com
FOR PROPANE/LP GAS
INSTALLATION: BLUE
1. Remove blue dust cover.
Blue Dust Cover
2. Apply thread sealant to the threads on a
3/8" NPT brass connection fitting. While
pushing in, rotate the fitting clockwise until
the threads engage the regulator. After
the fitting has been hand tightened into
the regulator use a wrench to complete
tightening of the fitting. Install additional
fitting to connect to the house supply.
FOR NATURAL GAS (NG)
INSTALLATION: YELLOW
1. Remove the blue dust cover from the
regulator.
Blue Dust Cover
DO NOT REMOVE
Blue Propane/LP
Plunger
Install Gas Fitting Here
Fitting
supplied
by installer,
may vary.
9