Combination Valve Regulator Adjustment - Vulcan-Hart EF3 ML-52099 Service Manual

EF SERIES GAS FRYERS
2. Hold the burner nozzle with channel locks
and remove the orifice, (Figure 22). Check
the orifice for obstructions or damage.
Figure 22
3. If the orifice is clogged, wash the orifice in
warm, soapy water. If this does not remove
obstructions, a #37 drill bit can be used
(do not use in an electric drill; hand-turn
only).
4. With channel locks, remove the burner
nozzle (Figure 22).
5. Reverse procedure to install new burner
nozzle and orifice.
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.
F35641 (02-05)
1. Turn the gas control valve knob to OFF
(Figure 23).
2. Remove the plug from the submanifold
and install pressure gauge at this point
(Figure 24).
3. Turn on the gas and light the pilot as
outlined under Lighting Pilot.
4. Turn the gas control valve knob to ON.
5. Set the thermostat so the burners will
come on.
— 14 —
Figure 23
Figure 24