Owner`s manual

19
NATURAL GAS
MANUAL PRESSURE MILLIVOLT PRESSURE
Regulator pressure reading: 3.5" w.c. Outlet pressure reading:
(Flame adjustment on high)
3.5" w.c.
Gas inlet pressure: Max. 10.5
" w.c.
Min. 5
" w.c.
Inlet pressure reading Max. 10.5" w.c.
Min. 5" w.c.
INSTALLATION - CHECKING GAS PRESSURE
PROPANE (L.P.) GAS
MANUAL PRESSURE MILLIVOLT PRESSURE
Regulator pressure reading: 10" w.c. Outlet pressure reading:
(Flame adjustment on high)
10" w.c.
Gas inlet pressure: Max. 13" w.c.
Min. 11
" w.c.
Inlet pressure reading Max. 13
" w.c.
Min. 11" w.c.
IMPORTANT
Check the gas pressure with the vent-free gas log set burning and the control set to HIGH.
The gas log set and its main gas valve must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
1
/
2
psig. (3.5 kPa) The gas log set must be
isolated from the gas supply piping system by closing its equipment shut-off valve during any pressure testing
of the gas supply piping system at test pressures equal to or less than
1
/
2
psig. (3.5 kPa) This is accomplished
by closing the gas supply line valve.
CHECKING GAS PRESSURE
Remote-capable safety pilot valve (Fig. 19-1)
Check the valve regulator pressure at the pressure
inlet point. Turn the inlet screw counterclockwise 2
or 3 turns and then place the tubing of the pressure
gauge over the pressure inlet point. (The test inlet
point is farthest to the gas supply inlet). After taking the
pressure reading, turn the inlet screw clockwise fi rmly
to reseal. Do not over torque. Check for gas leaks.
The vent-free burner system will need to be propped
up to allow access to the pressure inlet and outlet
points on the bottom side of the valve.
Note: Gas pressure should be checked after
connecting the gas and prior to any further
installation.
Manual safety pilot valve (Fig. 19-2) The pressure
regulator is preset at the factory and locked to
discourage tampering. If the pressure is not as
specifi ed, replace the regulator with the correct part
from the PARTS LIST in this manual. To check the
pressure, remove
1
/
8
" pressure tap screw plug, located
on the side of the regulator body. Install fi tting and
tubing of pressure gauge. With the unit operating take
the pressure reading. Reinstall the pressure tap screw
and check for leaks when done.
Fig. 19-1
Inlet
Outlet
Fig. 19-2
Regulator
Pressure tap screw
GAS PRESSURE SPECIFICATIONS