45
7.
If the desired outlet pressure or flow cannot be achieved by adjusting the gas valve, check the gas valve
inlet pressure using a manometer at the valve inlet pressure tap. If the inlet pressure is in the normal
range, replace the gas valve; otherwise take the necessary steps to assure proper gas pressure to the
valve.
Minimum Gas Flow Adjustment (for CE Use only)
(See fig. M4)
1.
Set the control into low fire setting by turning the motor knob in OFF-position and back until the valve
opens.
2.
The minimum rate can be set either by screwing in a calibrated minimum rate screw (fixed orifice) or an
adjustable minimum rate screw. Controls with adjustable screws without a customer specific setting are
factory set at maximum flow.
3.
Turn the screw clockwise to decrease the minimum flow.
4.
Care should be taken to screw the fixed orifice until it stops.
5.
Close pressure tap(s) by turning the screw(s) full clockwise
. Check all connections/pressure tap(s) for
leaks.
Fig.M6: Combination Control GV60, Cover
FINAL CHECK
Observe several complete cycles to ensure proper operation. During these cycles the electronics will determine
the optimum ignition sequence timing.
1.
STOP!
Read the safety information included before proceeding.
2.
Turn main valve knob to the OFF, full clockwise
position.
3.
Place ON/OFF switch (if equipped) to the
O
(OFF position).
4.
Wait five (5) minutes to clear out any gas. Verify that no gas is in the area around the appliance, including
near the floor
. If you detect gas STOP! Follow “A” in the safety information of the Operating
Instructions.
If no gas is present, proceed according to the Mertik Maxitrol Operating Instructions GV60-
OI-EN.
WARNING
Fire or explosion hazard. Attempted disassembly or repair can cause property damage, severe injury or
death. Do not disassemble the gas valve; it contains no serviceable components.
