Users Manual Part 1

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ENGLISH
INSTALLATION AND OPERATING INSTRUCTIONS DRAFT FOR OEM USE ONLY
© 2019 Mertik Maxitrol GmbH & Co. KG, All Rights Reserved.
Pressure Regulator or Throttle
Figure 16: Combination Control GV60, Cover
NOTE: Throttle model’s pressure is increased by turning coun-
terclockwise
; or decreased by turning clockwise
.
4. After adjustment, replace the plug.
5. If no other adjustments are required, close pressure tap(s) by
turning the screw(s) full clockwise
.
Check all connections / pressure tap(s) for leaks.
6. If the desired outlet pressure or ow cannot be achieved by
adjusting the gas valve, check the gas valve inlet pressure us-
ing a manometer at the valve inlet pressure tap. If the inlet
pressure is in the normal range, replace the gas valve; other-
wise, take necessary steps to assure proper gas pressure to
the valve.
CONVERTIBLE PRESSURE REGULATOR
(CSA Only; Optional)
Convertible regulators are designed to deliver either of two xed
outlet pressures for Natural Gas (NG) or LP Gas. To change
from one gas to the other, turn the conversion plug (see gure
17, page 9) counter clockwise to remove. Unsnap and remove
the plastic part, rotate it 180°, and then slide it back on the con-
version plug until it snaps. Turn the conversion plug clockwise
until it bottoms out.
Conversion Plug
Natural Gas:
NG Position
Liqueed Petroleum Gas:
LP Position
180°
Figure 17: Conversion from one gas to another
Minimum Gas Flow Adjustment
(Vented Units Only)
1. Set the control into low re setting by turning the motor knob to
OFF position and back until the valve opens.
2. The minimum rate can be set either by screwing in a calibrated
minimum rate screw (xed orice) or an adjustable minimum
rate screw. Controls with adjustable screws without a custom-
er specic setting are factory set at maximum ow.
3. Turn the screw clockwise
to decrease the minimum ow.
4. Care should be taken to screw the xed orice until it stops.
5. Close pressure tap(s) by turning the screw(s) full clockwise
. Check all connections / pressure tap(s) for leaks.
Changing the Fuel Type
(Vented Units Only; see “Convertible Pressure Regulator”)
GV60 can be converted to meet the manufacturer’s require-
ments for a specic gas type. Adjustments of pressure regulator,
minimum rate and pilot gas are according to above-mentioned
instructions. To convert for LPG CE it is necessary to block the
pressure regulator by turning the regulator adjustment screw
fully to the bottom limit (or the throttle adjustment screw fully to
the upper limit).
FINAL CHECK
Observe several complete ON / OFF cycles to ensure proper op-
eration. 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 a minimum of ve (5) minutes to clear out any gas. Verify
that no gas is in the area around the appliance, including near
the oor. If you detect gas STOP! Follow “What to do if you
smell gas” in the safety information (see page 2). If no gas
is present, proceed according to the Mertik Maxitrol Operating
Instructions.
Fire or Explosion Hazard. Attempted disassembly or repair
can cause property damage, severe injury or death. Do not dis-
assemble the gas valve; it contains no serviceable components.
MANUAL OPERATION
(Only possible, when MANUAL knob is used)
Access to the pilot burner is only required for ignition with a
match.
When turning main valve knob, do not force. Knob has a slip
clutch that clicks until the end stops are reached. This allows for
manual ame height adjustment as well as adjustment to pilot-
Standby position.
1. STOP! Read the safety information included before proceeding.
2. Turn main valve knob to the OFF, full clockwise
position.
3. Turn MANUAL knob to the MAN, full clockwise
position.
4. Place ON / OFF switch (if equipped) in O (OFF) position.
5. Wait ve (5) minutes to clear out any gas. Verify that no gas
is in the area around the appliance, including near the oor.
If you detect gas STOP! Follow “WHAT TO DO IF YOU
SMELL GAS” in the safety information on page 2. If no gas
is present, proceed to step 6.