Gas Control Knob Settings; Adjustment - ORTAL Clear 40 Tunnel, Clear RS Tunnel Installation & Operation Manual

INSTALLATION INSTRUCTIONS

GAS CONTROL KNOB SETTINGS

KNOB POSITION FUNCTION
Main valve OFF
Main valve ON
MANUAL knob MAN
MANUAL knob ON

ADJUSTMENT

It is the appliance manufacturer's responsibility to
determi
Do not attempt to remove screws from the top of
gas valve. Do not change any adjustments marked
with tamper indicating paint. Motor knob is not to be
removed.
Pressure Regulator
Main Valve Knob
Bottom Inlet
Inlet Pressure Tap
Ou let Pressure Tap
Figure 16: GV60, Connections and Adjustment Options
Pilot Flame Adjustment
(Vented Units Only)
thermocouple – vented only (see gure 17).
1. The adjustment screw can be reached through a hole
in the MANUAL knob (see gure 16).
2. Turn the MANUAL knob to the ON position.
APPENDIX B
through valve.
through valve if the pilot is lit
and thermocouple is gener-
Allows the pilot to be
manually ignited and
Allows for automatic ignition.
Pilot Gas Adjustment
Screw (turn with
screwdriver)
MANUAL
Knob
Connection
Piezo Igniter
Tab 2.8 x 0.8 mm
Magnet Unit
⅜" to ½" of the
3. It
with a screwdriver to reach the adjustment screw
beneath.
4. Turn the adjustment screw clockwise
or counterclockwise
vented gas appliances
Figure 17: Proper Flame Impingement on Thermocouple
Outlet Pressure Adjustment
(Vented Units Only)
STANDARD REGULATOR OR THROTTLE
(Throttle CE only)
1. Connect a pressure manometer to the valve outlet
pressure tap. Pressure tap is opened by turning the
screw counterclockwise
Pressure regulator or throttle are located under the
cover and can be reached by removing the plug (see
2. Turn MANUAL knob and main valve knob to the ON
position.
3. Turn pressure regulator adjustment screw to set required
turning clockwise
or decreased by turning counterclockwise
Pressure regulator or throttle
Figure 18: Combination Control GV60, Cover
NOTE: Throttle model's pressure is increased by
turning counterclockwise
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
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,
13 / 65
FOR OEM USE ONLY
to decrease
⅜ to ½ in.
(10 to13 mm)
thermocouple
.
(pressure regulator models),
.
; or decreased
.
.
A p p e n d i x B