the operator off of the valve body without using
the release clip. Both locking posts should be firm-
ly attached to the operator. If the operator slides
up the stem, repeat the assembly process.
4. Wire the operator in accordance with system
requirements (see Wiring Diagrams).
5. The plug-in quick connects can be disconnected
from the valve operator for ease of wiring. Insert the
corresponding wire into the quick connects (see
Wiring Diagrams) and tighten by turning the screw.
6. Caution: Do not jumper power/motor (24 VAC)
connection terminals, even temporarily. This may
cause damage to the thermostat’s heat anticipator.
Mode of Operation:
1. Upon initial field installation the capacitor
requires a full charge, up to 20 seconds, before the
valve starts to turn. Charging time will vary (typi-
cally less) during normal operation.
2. When the capacitor is charging the green LED
light will FLASH.
3. Once the capacitor is charged, the green LED will
stop flashing but remain ON. At this point the
valve’s operator will rotate the ball valve. The
green LED will remain ON as long as the thermo-
stat is calling (the unit is powered).
4. Once the thermostat is satisfied the green LED will
turn OFF and the valve will rotate 90° into its nor-
mal position or non-powered position. For exam-
ple: If the actuator is an NC (normally closed) ver-
sion, the operator would open the valve when the
thermostat calls. Once the thermostat is satisfied
the operator would then rotate the valve 90° to its
normally closed position.
VALVE SIZE
Cv (Kv)/Ft.
of PIPE EQUIV.*
CLOSE-OFF PSI (kPa)
1
⁄
2
"
4.9 (4.3) / 9.5 0-125 psi (0-862 kPa)
3
⁄
4
"
10.3 (8.9) / 8.4 0-125 psi (0-862 kPa)
1" 8.9 (7.7) / 47.4 0-125 psi (0-862 kPa)
Dimensions (for reference purposes):
Flow Coefficients and Maximum Close-Off Pressure:
* At 4' per second (max.
recommended residential
flow rate).
WARNING: Do not use zone valves on indirect
water heaters without a tempering device.
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