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2. Remove the plug from the submanifold and
install pressure gauge at this point.
3. Turn on the gas and light the pilot as outlined
under Lighting Pilot in General.
4. Turn the combination valve to ON.
5. Set the thermostat so the burners will come
on.
6. Read the pressure gauge. The manifold
pressure reading should match the pressure
rating on the data plate.
A. To adjust, remove the cap covering the
manifold pressure adjustment screw. Turn
the recessed manifold pressure
adjustment screw counterclockwise to
decrease pressure or clockwise to
increase pressure.
7. Install the cap and check for proper operation.
COMBINATION VALVE REGULATOR
ADJUSTMENT
WARNING: SHUT OFF THE GAS BEFORE
SERVICING.
Accurate gas pressure adjustments can only be
made with the gas on and the burner lit. If the
incoming line pressure to the valve is less than the
minimum stated, then the pressure cannot be set
correctly.
The combination valve is preadjusted for natural or
propane gas as specified on the rating plate. The
natural gas rating is 4" W.C., and the propane rating
is 10" W.C.
1. Turn the combination valve knob to OFF.