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9
Burn Only the Fuel for which the Heater is Equipped
The Clarity Direct Vent will burn either natural gas or
propane, but requires a dedicated burner system module for
either fuel. The label on the burner system module indicates
the fuel for which it is equipped. A second label, located
near the rating plate, also indicates the fuel type.
Making The Connection
The gas inlet is located at
the bottom right rear of the
stove. The inlet fitting is a 1/
2" female flare flexible pipe.
A separate gas shut-off
valve and a 1/8" N.P.T.
plugged tapping should be
installed immediately up-
stream of the connection to
the appliance.
The Clarity Direct Vent
Gas Heater must be discon-
nected from the gas supply piping during any pressure test-
ing of that system at pressures in excess of 1/2 psig (3.5
kPa).
The Clarity gas control valve must be in the OFF position
during any pressure testing of the gas supply system at pres-
sures equal to or less than 1/2 psig (3.5 kPa).
WARNING: To avoid pipe compounds from en-
tering into the gas train, apply compounds only to male
pipe threads and do not apply compound to the first
two threads.
CAUTION: TEST ALL JOINTS FOR LEAKS BE-
FORE OPERATING
Gas Pressure Requirements
Correct gas pressure and the use of a properly sized
gas supply line are essential for the safe and efficient per-
formance of this appliance. Make sure that the plumber or
gas supplier checks the gas supply line and gas pressure at
installation.
NOTE: Improper gas pressure can affect heater per-
formance, flame color, or cause pilot outage.
Natural Gas:
Maximum inlet pressure 7.0" w.c. (1.74 kPa)
Minimum inlet pressure 5.0" w.c. (1.25 kPa)
Gas manifold pressure 3.5" w.c. (0.87 kPa)
LPG Gas:
Maximum inlet pressure 13" w.c. (3.24 kPa)
Minimum inlet pressure 11" w.c. (2.74 kPa)
Gas manifold pressure 10" w.c. (2.49 kPa)
DO NOT USE THIS HEATER IF ANY PART HAS
BEEN UNDER WATER OR EXPOSED TO MOISTURE
CORROSION. IMMEDIATELY CALL A QUALlFlED
SERVICE TECHNICIAN TO INSPECT THE HEATER
AND REPLACE ANY PART OF THE CONTROL SYS-
TEM AND ANY GAS CONTROL WHICH HAS BEEN
UNDER WATER.
Once you have installed the appropriate burner system
module, fill out the installer fuel label that was included with
the module, peel off the self-adhesive backing material, and
affix the label to the wing door near the rating plate.
Pipe Length Schedule 40 Pipe Tubing, Type L
(Feet) Inside Diameter Outside Diameter
N.G. L.P. N.G. L.P.
0-10 1/2" 3/8" 1/2" 3/8"
1.3 cm 1.0 cm 1.3 cm 1.0 cm
10-40 1/2" 1/2" 5/8" 1/2"
1.3 cm 1.3 cm 1.6 cm 1.3 cm
40-100 1/2" 1/2" 3/4" 1/2"
1.3 cm 1.3 cm 1.6 cm 1.3 cm
100-150 3/4" 1/2" 7/8" 3/4"
2.0 cm 1.3 cm 2.3 cm 2.0 cm
RECOMMENDED GAS PIPE DIAMETER
NOTE: NEVER USE PLASTIC PIPE. CHECK TO CONFIRM
WHETHER YOUR LOCAL CODES ALLOW COPPER
TUBING OR GALVANIZED PIPE.
CONNECTING THE HEATER TO A GAS SUPPLY
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