Install Instructions

Auxiliary and Overtravel Proof-of-Closure
Switch Ratings
120VAC: 15 Amps, 1/3 HP
240VAC: 7.5 Amps, 1/2 HP
Total connected load of auxiliary and overtravel proof-of -closure
switches not to exceed 1800VA.
CAUTION: Overtravel Proof-of-closure switch must
only be used with V710 Series Gas Valves having an
overtravel seal (V22 or V25 Suffi x in catalog number).
Overtravel Proof-of-Closure Switch
The optional valve overtravel proof-of-closure switch is set at the
factory to provide both a mechanical and electrical means of proving
valve closed position interlock to the primary control. This switch is
not to be fi eld adjusted.
Optional
Auxiliary or Overtravel Proof-of-Closure Switch
(Partial Views)
Auxiliary switch
assembly
Adjustment
screw
Figure 3. Auxiliary Switch
Adjust this
screw using
1/16” Allen
key.
Figure 5. Auxiliary Switch Adjustment
Low Fire Switch Adjustment (Refer to Figure 6)
1. Before removing the cover, review WARNING statements on
page 1. Remove cover screws and nameplate/electrical cover (with
gasket if tted). Take care not to damage the sealing surfaces and
cover gasket if supplied.
2. Insert a 7/64” Allen key into the adjusting screw on low re switch
assembly.
3. The AH4E actuator is supplied with the low re switch set at
approximately 50% of the valve stroke. Turn screw clockwise
to move setpoint towards the beginning of actuator stroke. Turn
screw counterclockwise to move setpoint towards the end of the
actuator stroke. (One turn = approximately 20% of valve stroke).
Note: Do not apply excessive force to the low re adjustment
screw while setting.
Attention: Under some operating conditions, when the low
re set screw is adjusted to less than 15% of the valve stroke,
the AH4E unit may not open when energized from the closed
position. Please unscrew the low re set screw in 1/8th turn
counterclockwise increments until the unit opens when
energized. Then further apply ½ turn counterclockwise.
Proof-of-Closure
Switch Assembly
Factory set. Do not
adjust.
Figure 4. Proof
-of-Closure Switch
6. If a proof of closure or auxiliary switch is being used make
those electrical connections. Use the markings located on the
insulators to determine normally open and normally closed
terminals. Torque electrical connection screws 8 to 12 in-lbs (0.9
to 1.3 Nm). Refer to auxiliary switch adjustment section on page 3
for instructions on adjusting switch. Proof of closure switches are
set at the factory. Do not adjust proof of closure switches.
7. Install the cover. Be certain that the gasket (if applicable) and
sealing surfaces are clean and there is no damage to the surfaces
or gasket. Snug down all screws before tightening. Torque screws
20 to 25 in-lbs (2.3 to 2.8 Nm) evenly using a crisscross pattern
starting in the middle and not in the corner.
8. If the damper arm is being used, connect linkage and adjust as
needed for proper operation of the damper.
Damper Arm Adjustment: To reposition the damper arm, remove
the e-ring retainer and damper arm then reposition arm and reinstall
e-ring. When repositioning arm onto the opposite side, remove
e-rings on both sides and reposition and install on opposite sides.
DO NOT remove the square damper shaft.
9. Operate actuator (with valve) through ve cycles to verify proper
operation of valve and damper/ linkage system prior to use.
Auxiliary Switch Adjustment(Refer to Figure 5)
Note: The Auxiliary switch is not a safety switch.
1. Before removing the cover, review WARNING statements on
page 1. Remove cover screws and nameplate/electrical cover (with
gasket if tted). Take care not to damage the sealing surfaces and
cover gasket if supplied.
2. Insert 1/16” Allen key into adjusting screw on auxiliary switch
assembly.
3. Turn screw clockwise to move set point towards beginning of
actuator stroke. Turn screw counterclockwise to move setpoint
toward the end of the actuator stroke. (approximately 8.5 turns
from 0 to 100% travel)
4. Cycle the actuator to verify the switch setting and readjust as
required.
5. Install the cover. Be certain that the gasket (if applicable) and
sealing surfaces are clean and without damage. Snug down all
screws before tightening. Torque screws 20 to 25 in-lbs (2.3 to 2.8
Nm) evenly using a crisscross pattern starting in the middle.
Page 3 of 4
I&M No. V 9611 R5
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