VS8510/VS8520 MILLIVOLT COMBINATION GAS CONTROL
68-0203
6
3. Thread pipe 9/16 in. into the control. Do not insert
deeper than 3/8 in. Valve distortion or malfunction can
result if the pipe is inserted too deeply.
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. See Fig. 3.
5. Remove seals over control inlet and outlet, if necessary.
6. Connect pipe to control inlet and outlet. Use wrench on
either side of the pipe outlet. Refer to Fig. 2 through 6.
Fig. 2. Sediment trap installation.
Fig. 3. Use moderate amount of pipe compound.
TWO IMPERFECT
THREADS
GAS CONTROL
THREAD PIPE ACCORDING TO
INSTALLATION PROCEDURE FOR
INSERTION INTO GAS CONTROL.
APPLY A MODERATE AMOUNT OF
PIPE COMPOUND TO PIPE ONLY
(LEAVE TWO END THREADS BARE).
M6913
PIPE
Fig. 4. Top view of gas control with HI/LO regulator.
Fig. 5. Top view of gas control with standard regulator.
Fig. 6. Proper use of wrench on gas control.
APPLY WRENCH
FROM BOTTOM OF
GAS CONTROL TO
SHADED AREA
M6916
L
HI
O
M12675
O
FF
PILOT
ON
HI/LO
REGULATOR
WIRING
TERMINALS
INLET
PRESSURE TAP
OUTLET
PRESSURE TAP
PILOT
ADJUSTMENT SCREW
GAS
CONTROL KNOB
M12674
OFF
PILOT
ON
OUTLET
PRESSURE
TAP
PRESSURE REGULATOR
ADJUSTMENT (UNDER
CAP SCREW)
WIRING
TERMINALS
INLET
PRESSURE TAP
GAS
CONTROL
KNOB
PILOT
ADJUSTMENT
SCREW
GAS
CONTROL
GAS
CONTROL
HORIZONTAL
DROP
PIPED
GAS
SUPPLY
PIPED
GAS
SUPPLY
3 INCHES
(76 MM)
MINIMUM
3 INCHES
(76 MM)
MINIMUM
RISER
GAS
CONTROL
TUBING
GAS
SUPPLY
HORIZONTAL
DROP
3 INCHES
(76 MM)
MINIMUM
RISER
M4603A
1
1
CAUTION
GAS LEAKAGE HAZARD
FAILURE TO FOLLOW PRECAUTIONS CAN
RESULT IN A GAS-FILLED WORK AREA.
SHUT OFF THE MAIN GAS SUPPLY BEFORE REMOVING END CAP.
TEST FOR GAS LEAKAGE WHEN INSTALLATION IS COMPLETE.
ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH.