Honeywell VR8304 Choose Gas Control Location, Install Piping to the Gas Control

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 tube-to-pipe coupling to connect the tubing to the gas control.

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 0–90 degrees in any direction from the upright position of the gas control knob, including vertically.

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 69-0625—03