VR8304 INTERMITTENT PILOT COMBINATION GAS CONTROL
Choose Gas Control Location
Do not locate the gas control where it may be affected by steam cleaning, high humidity, dripping water, corrosive chemicals, dust or grease accumulation, or excessive heat.
To ensure proper operation, follow these guidelines.
• Locate the gas control in a well ventilated area. |
• Mount the gas control high enough above the |
cabinet bottom to avoid exposure to flooding or |
splashing water. |
• Ensure the ambient temperature does not |
exceed the ambient temperature ratings for each |
component. |
• Cover the gas control if the appliance is cleaned |
DROP
PIPED
HORIZONTAL 
GAS
SUPPLY
GAS
CONTROL
3IN.
(76 MM)
MINIMUM
2
DROP
HORIZONTAL
GAS CONTROL
RISER
PIPED
GAS
SUPPLY
3 IN. |
with water, steam, or chemicals or to avoid dust |
and grease accumulation. |
• Avoid locating the gas control where exposure to |
corrosive chemical fumes or dripping water is |
1
TUBING GAS
SUPPLY 2
(76 MM) |
MINIMUM
likely.
Locate the gas control in the appliance vestibule on the gas manifold. In replacement applications, locate the gas control in the same location as the old gas control.
Install Piping to the Gas Control
GAS
CONTROL RISER 
3 IN.
(76 MM)
MINIMUM
2
All piping must comply with local codes and ordinances or with the National Fuel Gas Code (ANSIZ223.1 NFPA No. 54), whichever applies. Tubing installation must comply with approved standards and practices.
1.Use new, properly reamed pipe free of chips. If tub- ing is used, ensure the ends are square, deburred and clean. All tubing bends must be smooth and without deformation.
2.Run a pipe or tubing to the gas control. If tubing is used, obtain a
3.Install a sediment trap in the supply line to the gas control. See Fig. 2.
1ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH.
2CAUTION: 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. | M3077A | |
| Fig. 2. Install a sediment trap. |
|
TWO IMPERFECT |
| |
THREADS | GAS CONTROL |
|
PIPE |
Install the Gas Control
1.Mount the gas control
2.Mount the gas control so that gas flow is in the direc- tion of the arrow on the bottom of the gas control.
3.Thread the pipe the amount shown in Table 5 for insertion into the gas control or adapter. DO NOT THREAD THE PIPE TOO FAR. Valve distortion or malfunction may result if the pipe is inserted too deeply into the gas control.
4.Apply a moderate amount of good quality pipe com- pound (DO NOT use Teflon tape) to the pipe only, leaving two end threads bare. On LP installations, use a compound resistant to LP gas. Refer to Fig. 3.
5.Remove the 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 Figs. 4 and 5.
Table 5. NPT pipe thread length (inches)
| Thread pipe this | Maximum depth pipe |
| can be inserted into the | |
Pipe size | amount | control |
318 | 9/16 | 3/8 |
|
|
|
1/2 | 3/4 | 1/2 |
|
|
|
3/4 | 13/16 | 3/4 |
|
|
|
THREAD PIPE THE AMOUNT | APPLY A MODERATE AMOUNT OF |
SHOWN IN TABLE FOR | PIPE COMPOUND TO PIPE ONLY |
INSERTION INTO GAS CONTROL | (LEAVE TWO END THREADS BARE). |
| M3075B |
Fig. 3. Use a moderate amount of pipe compound.
PRESSURE REGULATOR |
|
| |
ADJUSTMENT |
| WIRING | |
(UNDER CAP SCREW) |
| ||
| TERMINALS (3) | ||
|
| ||
INLET |
| OUTLET | |
PRESSURE |
| ||
| PRESSURE | ||
TAP |
| ||
| TAP | ||
|
| ||
INLET |
| OUTLET | |
|
| PILOT OUTLET | |
RED |
| PILOT ADJUSTMENT | |
GAS CONTROL | (UNDER CAP SCREW) | ||
RESET BUTTON | |||
M1639C | |||
| KNOB | ||
|
|
Fig. 4. Top view of gas control.
Connect Pilot Gas Tubing
1.Cut tubing to desired length and bend as necessary for routing to the pilot burner. Do not make sharp bends or deform the tubing. Do not bend tubing at gas control or pilot burner after compression fitting has been tightened, as this may result in gas leak- age at the connection.
2.Square off and remove burrs from the ends of tubing.
3 |