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Y8610U INTERMITTENT PILOT RETROFIT KIT
11 68-0291—03
Fig. 11. Install sediment trap.
Mount Gas Control
1. The gas control can be mounted from 0 to 90 degrees, in
any direction including vertically, from the upright posi-
tion of the gas control knob.
2. Mount the gas control so the gas flow is in same direc-
tion as the arrow on the gas control bottom.
3. Thread the pipe as listed in Table 3.
NOTE: See Table 3 for maximum pipe threading depth. If the
pipe is inserted too deeply into the gas control, the
second main valve or safety valve can distort or mal-
function.
4. Apply a moderate amount of good quality pipe com-
pound to pipe only; leave the two end threads bare. Do
not use teflon tape. In LP installations, use a compound
resistant to LP gas. See Fig. 12.
Fig. 12. Use moderate amount of pipe compound.
5. Remove protective seals over the gas control inlet and
outlet, if necessary.
6. Connect the pipe to the gas control inlet and outlet.
Tighten the inlet and outlet connections using a wrench
on the gas control projecting wrench boss. See Fig. 3 or
Fig. 4 on page 5 depending on the valve used.
Connect Pilot Gas Tubing
1. Cut the pilot gas tubing and bend as necessary for rout-
ing to the pilot burner.
• Do not make sharp bends or deform the tubing.
• Do not bend the tubing at the gas control after the
compression nut has been tightened; gas leakage at
the connection can result.
2. Square off and remove the burrs from the tubing end.
3. Unscrew the brass compression fitting from pilot gas out-
let (see Fig. 3 or Fig. 4 on page 5 depending on the valve
used). Slip the fitting over the pilot gas tubing and slide
out of the way.
NOTE: When replacing a gas control, cut off the old compres-
sion fitting and replace with the new compression fit-
ting provided on the new gas control. Never use the
old compression fitting as it might not provide a gas
tight seal. See Fig. 13.
Fig. 13. Always use new compression fitting.
4. Push pilot gas tubing into the pilot gas tapping until it bot-
toms. While holding the tubing all the way in, slide the
compression fitting into place and engage the threads.
Turn the fitting until finger tight. Use a wrench to tighten
one more turn. Do not overtighten.
5. Connect the other end of the pilot gas tubing to the pilot
burner according to the pilot burner manufacturer
instructions.
Table 3. NPT pipe thread length (in.)
Pipe
Size
Overall
Thread Length
Maximum Depth Pipe Can Be
Inserted Into Gas Control
3/8 9/16 3/8
1/2 3/4 1/2
3/4 13/16 3/4
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
M3077A
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 CORRECT LENGTH
APPLY A MODERATE AMOUNT OF
PIPE COMPOUND TO PIPE ONLY
(LEAVE TWO END THREADS BARE).
M3312
PIPE
GAS CONTROL
TIGHTEN NUT ONE TURN
BEYOND FINGER TIGHT
FITTING BREAKS OFF AND CLINCHES
TUBING AS NUT IS TIGHTENED
PILOT
TUBING
M6868A