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Standard Wiring
(From Burner
Sequence
Control)
6 G—GM-20/25 and GM-40/45 Series Dual-block Multi-function Gas Control Valves Technical Bulletin
The GM Series valve may be mounted on a horizontal manifold with
the solenoid actuator pointed up (vertical) or in any position not
o
exceeding 90
from the vertical. The valve may also be mounted on a
vertical manifold in any position around its axis (see Figure 2). Do not
install the solenoid actuator upside down. Install vertically wherever
possible.
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Figure 2: GM Series Valve Mounting Position
Use an approved pipe joint sealing compound on male threads before
assembly.
6. Remove excess compound after mounting the flanges to the pipe.
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.
!
WARNING: Shock hazard. Avoid electrical shock and equipment
damage by disconnecting electrical power to the valve
before proceeding.
!
CAUTION: Equipment damage hazard. To prevent possible
grounding of the 24 VAC transformer secondary, do
not connect the ground wire on 24 VAC models.
Follow the procedure below to wire the valve when using the standard
PG 13.5 cable compression electrical connection.
1. Observe that the operating voltage is identical to the information on
the product identification label.
2. Route the electrical cable for the valve solenoid from the burner
sequence control to the valve.
3. Remove the cover of one of the electrical box and make wiring
connections in accordance with Figure 3.
4. Reattach the electrical box cover.
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