V8200A,C,H,M AND VR8200A,C,H,M CONTINUOUS PILOT COMBINATION GAS CONTROLS
3
69-0422—03
Complete instructions below for piping, installing control,
and connecting pilot tubing, thermocouple, and wiring.
Make certain the gas leak test you perform on the control
after completing the installation includes leak testing the
adapters and screws. If you use a wrench on the valve
after flanges are installed, use the wrench only on the
flange, not the control.
Using Adapters to Solve Swing
Radius Problems
In some field service applications, it is difficult or
impossible to thread the control onto the gas supply pipe
because of space limitations. This problem can be
resolved in many instances through the use of an adapter.
The adapter is installed on the end of the supply pipe in
place of the gas control, following the same precautions
and instructions that are used for installing the gas
control. After the adapter is installed, the gas control is
attached to the adapter as outlined above. Note that use
of an adapter increases the overall length of the gas
control.
Location
Do not locate the combination gas control where adverse
environments such as steam cleaning, high humidity or
dipping water, corrosive chemicals, dust or grease
accumulation, or excessive heat are prevalent. To ensure
proper operation, follow these guidelines:
• Locate in a well ventilated area.
• Mount high enough above the cabinet bottom to avoid
exposure to flooding or splashing water.
• Ensure that the ambient temperature does not exceed
the ambient temperature ratings for each component.
• Cover if appliance is cleaned with water, steam, or
chemicals or to avoid dust and grease accumulation.
• Avoid locating where exposure to corrosive chemical
fumes or dipping water is likely.
Mount the combination gas manifold. If this is a
replacement application, mount the control in same
location as old control.
Fig. 2. Sediment Trap Installation.
Install Piping to Control
All piping must comply with local codes and ordinances or
with the Natural Fuel Gas Codes (ANSI Z223.1 NFPA No.
54), whichever applies. Tubing installation must comply
with approved standards and practices.
1.
Use new, properly reamed pipe free from chips. If
tubing is used, make sure the ends are square,
deburred and clean. All tubing bends must be
smooth and without deformation.
2.
Run pipe or tubing to the control. If tubing is used,
obtain a tube-to-pipe coupling to connect the tubing
to the control.
3.
Install sediment trap in the supply line to the gas
control (See Fig. 2).
Install Control
1.
This control can be mounted 0-90 degrees, in any
direction, from the upright position of the gas control
knob, including vertically.
2.
Mount the control so gas flow is in the direction of
the arrow on the bottom of the control.
3.
Thread pipe the amount shown in Table 4 for
insertion into control. DO NOT THREAD PIPE TOO
FAR. Valve distortion or malfunction may result if
the pipe is inserted too deeply.
Table 4. NPT Pipe Thread Length (in.).
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 the square ends of the control. If a flange is
used, place wrench on flange rather than control
(Refer to Fig. 4 and 5).
Fig. 3. Use of Moderate Amount of Pipe Compound.
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.
Pipe
Size
Thread Pipe
this Amount
Maximum Depth
Pipe can be
Inserted into
Control
3/8
9/16
3/8
1/2
3/4
1/2
3/4
13/16
3/4
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).
M3075B
PIPE