VR8300 CONTINUOUS PILOT COMBINATION GAS CONTROL
69-0668—05
4
3.
Install sediment trap in the supply line to the gas
control. See Fig. 4.
Fig. 4. Sediment trap installation.
Install Gas Control
To install:
1.
Mount the gas control 0 to 90 degrees, in any
direction, from the upright position of the gas con-
trol 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 5 for inser-
tion 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. 5. Use moderate amount of pipe compound.
Table 5. 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 con-
trol. If an adapter is used, place the wrench on the
adapter rather than the gas control. Refer to Fig. 1
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
within 3 inches of the gas control or pilot burner
after compression fitting is tightened, because this
can result in gas leakage at the connection.
2.
Square off and remove the burrs from the end of
the tubing.
3.
Unscrew the compression fitting from the pilot out-
let (Fig. 1). Slip the compression fitting over the
tubing and slide out of the way.
NOTE:
When replacing a gas control, cut off the old
compression fitting and replace with the new
compression fitting provided on the gas control.
Never use the old compression fitting as it may
not provide a gas-tight seal.
4.
Push tubing into the pilot gas tapping on the outlet
end of the control until it bottoms. While holding
the tubing all the way in, slide the compression fit-
ting into place and engage threads—turn until fin-
ger-tight. Then tighten one more turn with wrench.
Do not overtighten. Refer to Fig. 7.
Pipe Size
Thread Pipe
this Amount
Maximum Dept 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.
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
M3077B
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.
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).
M3075C
PIPE
APPLY WRENCH
TO FLANGE ONLY
M16012A
