BASO GM7000 Series Multi-function Gas Control Valve User Manual

Page 2

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2 GM-7000 Series CE Approved Gas Control Valve Installation Instructions

Note: If installing a valve with threaded

connections, use an approved pipe joint
sealing compound on the male threads
before assembly. An optional thread
lubricant may have been factory applied to
the first two or three threads of the inlet
and outlet to avoid galling. Make sure that
excess compound is removed after
mounting. Threads of pipe and nipples
must be smooth and free of tears and
burrs. Steam clean all piping to remove
foreign substances such as cutting oil or
thread chips.

8.

Connect the pilot tubing (when necessary) to the
threaded pilot connection on the underside of the
valve body (Figure 2) and run the tube to the pilot
burner within the appliance. Connect the pilot
tube to the valve with an optional compression
fitting.

Outlet Pressure
Tap Connection

Pilot Tube

Connection

Figure 2: Underside of Valve with

Direct-Acting Regulator

9.

Check for leakage before making any valve
adjustments.

a. Shut off the gas at the main manual shutoff

valve and open the pressure connection
between the manual shutoff valve and the
GM-7000 valve.

b. Connect air tubing with a maximum pressure

of 1-1/2 times the valve’s maximum operating
pressure (as indicated on the valve) to the
opened pressure connection.

c. Paint all valve body connections with a rich

soap and water solution.

If bubbles occur, this is an indication of a leak.
To stop a leak, tighten joints and connections.
Replace the part if the leak cannot be stopped.

If bubbles do not occur, remove the air tubing
and close the pressure connection.

10. Make wiring connections. See the Wiring section

for specific wiring instructions.

11. To measure the outlet pressure, by apply power

to the valve and energizing both valve solenoids.
Use the outlet pressure tap connection on the
underside of the valve body to monitor the outlet
pressure. The outlet pressure tap is a bleed hole
with a cast spigot, sealed with a threaded brass
needle screw (Figure 2). To measure the outlet
pressure, turn the screw in a counterclockwise
direction one or two turns and fit a 9 mm diameter
flexible tube over the cast spigot. After all valve
adjustments have been made and the desired
outlet pressure has been obtained, remove the
flexible tube. Tighten the needle screw by turning
it clockwise with a slotted screwdriver until hand
tight, sealing the bleed hole.

12. Check for leakage at the bleed hole. Paint the

bleed hole with a rich soap and water solution (or
use acceptable gas leak detection equipment). If
bubbles occur, this is an indication of a gas leak.
To stop a leak, tighten the needle screw. Replace
the valve if the leak cannot be stopped.

Note: If installing a valve with a pressure

regulator, set the valve to the desired
outlet pressure. See the Regulator
Adjustment
section for specific adjustment
procedures. After setting the valve outlet
pressure, ensure that the leak-limiting seal
cap is replaced (Figure 3).

13. Observe at least three complete operating cycles

to ensure that all components are functioning
correctly before leaving the installation.

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