Install Instructions

393691 LP GAS AND 394588 NATURAL GAS CONVERSION KITS
XX-XXXX—69-0244—7 2
Fig. 2. Conversion kit installation in regulator.
5. Install the new plastic pressure regulator
adjustment screw. Assure that the screw top is
flush with the regulator top.
6. Turn pressure regulator adjustment screw
clockwise eleven complete turns. The
preliminary pressure setting is approximately 10.0
in. wc (2.5 kPa) for LP gas regulator (393691) and
3.5 in. wc (0.9 kPa) for natural gas regulator
(394588).
7. Check the regulator setting using a manometer or
by clocking the gas meter. See Check and Adjust
Gas Input and Burner Ignition section.
8. Install the new cap screw and O ring.
9. Mount conversion label on the gas control.
10. Install the gas control and appliance according to
appliance manufacturer instructions.
START-UP
Gas Control Knob Settings
OFF: Prevents pilot and main burner gas flow.
PILOT (On standing pilot controls only): Permits pilot
burner gas flow when red knob is held down or
thermocouple current is above power unit dropout
value.
ON: Permits gas flow into gas control. Pilot burner gas
is controlled as in the PILOT position for standing pilot
and intermittent pilot systems. Main burner gas flow is
controlled by thermostat and automatic valve
operators.
Perform Gas Leak Test
WARNING
Fire or Explosion Hazard.
Can cause severe injury, death or property
damage.
Check for gas leaks with soap and water solution
any time work is done on a gas system.
Gas Leak Test
1. Paint pipe connections upstream of gas control
with rich soap and water solution. Bubbles indicate
gas leak.
2. If gas leak is detected, tighten all pipe connections.
3. Stand clear of main burner while lighting to prevent
injury caused from hidden leaks that could cause
flashback in the appliance vestibule. Light main
burner.
4. With main burner operating, paint pipe joints
(including adapters) and control inlet and outlet
with rich soap and water solution.
5. If another gas leak is detected, tighten adapter
screws, joints, and pipe connections.
6. Replace part if gas leak can not be stopped.
Light Pilot (Standing Pilot Models)
1. Turn gas control knob clockwise to OFF.
Wait five minutes to dissipate any unburned gas.
Smell for gas around the appliance near the floor.
Do not relight pilot flame if you smell gas.
2. Turn gas control knob counterclockwise to
PILOT. Push down and hold the knob while lighting
the pilot flame.
3. Hold down the gas control knob about one minute,
then release.
a. If pilot flame goes out, turn gas control knob
clockwise to OFF and repeat steps 1
through 3.
b. If pilot flame remains lit, turn gas control knob
counterclockwise to ON.
Turn on System (Intermittent and Direct
Ignition Systems)
Rotate the gas control knob counterclockwise to
ON.
Turn on Main Burner
Follow appliance manufacturer instructions or adjust
thermostat setting to call for heat.
Adjust Pilot Flame
The pilot flame should envelop 3/8 to 1/2 in. (10 to 13
mm) of the thermocouple or igniter-sensor tip. Refer to
Fig. 3. To adjust pilot flame:
1. Remove pilot adjustment cap screw. Refer to Fig.
1.
2. Turn inner adjustment screw clockwise to
decrease or counterclockwise to increase
pilot flame.
3. Always replace cap screw after adjustment and
tighten firmly to safeguard proper operation.
COLOR CODE FOR
LP
GAS
NATURAL
GAS
CAP SCREW BLACK
BLACK BLACK
SILVER
PRESSURE
REGULATOR
ADJUSTING
SCREW
BLACK BLACK
SPRING
RED
STAINLESS
STEEL
PRESSURE
REGULATOR
HOUSING
M7780B
O RING
69-0244.fm Page 2 Tuesday, June 21, 2005 2:06 PM