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69-0668—1
4
VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL
Install Gas Control
To install:
1. Mount the gas control 0 to 90 degrees, in any
direction, from the upright position of the gas control
knob, including vertically.
2. Mount the gas control so the gas flow is in the
direction of the arrow on the bottom of the gas
control.
3. Thread pipe the amount shown in Table 4 for
insertion into the gas control. Do not thread pipe too
far. Valve distortion or malfunction can result if the
pipe is inserted too deeply into the gas control. See
Fig. 3.
TWO IMPERFECT
THREADS
GAS CONTROL
THREAD PIPE THE AMOUNT
SHOWN IN TABLE FOR
INSERTION INTO GAS CONTROL
APPLY A MODERATE AMOUNT OF
PIPE COMPOUND TO PIPE ONLY
(LEAVE TWO END THREADS BARE).
M3075B
PIPE
Fig. 3. Sediment trap installation.
Pipe
Size
Thread Pipe
this Amount
Maximum Depth Pipe can
be Inserted into Control
3/8 in. 9/16 in. 3/8 in.
1/2 in. 3/4 in. 1/2 in.
3/4 in. 13/16 in. 3/4 in.
APPLY WRENCH
TO FLANGE ONLY
M16012
GAS
CONTROL
GAS
CONTROL
HORIZONTAL
DROP
PIPED
GAS
SUPPLY
PIPED
GAS
SUPPLY
3 IN.
(76 MM)
MINIMUM
3 IN.
(76 MM)
MINIMUM
RISER
GAS
CONTROL
TUBING
GAS
SUPPLY
HORIZONTAL
DROP
3 IN.
(76 MM)
MINIMUM
RISER
M3077
2
1
2
2
1
2
ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH.
CAUTION: SHUT OFF THE MAIN GAS SUPPLY BEFORE REMOVING
END CAP TO PREVENT GAS FROM FILLING THE WORK AREA. TEST
FOR GAS LEAKAGE WHEN INSTALLATION IS COMPLETE.
Fig. 4. Use moderate amount of pipe compound.
Table 4. NPT Pipe Thread Length in in.
IMPORTANT
On LP installations, use compound resistant to
LP gas. Do not use Teflon tape.
4. Apply a moderate amount of good quality pipe
compound (DO NOT use Teflon tape) to pipe only,
leaving two end threads bare. On LP installations,
use compound resistant to LP gas.
5. Remove seals over the gas control inlet and outlet if
necessary.
6. Connect the pipe to the gas control inlet and outlet.
Use a wrench on the square ends of the gas control.
If an adapter is used, place the wrench on the
adapter rather than the gas control. Refer to Fig. 5
and 6.
OUTLET
PRESSURE
TAP
INLET
OUTLET
WIRING
TERMINALS (2)
OUTLET
PRESSURE
TAP
PRESSURE REGULATOR
ADJUSTMENT
(UNDER CAP SCREW)
PILOT OUTLET
PILOT ADJUSTMENT
(UNDER CAP SCREW)
GAS
CONTROL
KNOB
RED RESET BUTTON
M16013
THERMOCOUPLE
CONNECTION
CONVENIENCE
TERMINALS (2)
(OPTIONAL)
Fig. 5. Top view of gas control.
Fig. 6. Proper use of wrench on gas control.
Connect Pilot Gas Tubing
1. Cut tubing to desired length and bend as necessary
for routing to pilot burner. Do not make sharp bends
or deform the tubing. Do not bend tubing at gas
control or pilot burner after compression fitting is
tightened, because this can result in gas leakage at
the connection.