Install Instructions

VC2, VC4, VC60, VC8
5 95C-10920—03
Fig. 8. Actuator wiring for SPDT controller
(Series 20 and 60).
NOTE: VC2114 and VC8114 actuators must be used with
separately-powered (hardwired) electronic control-
lers. Their sustained current draw is too low for
power stealing (parasitic power) thermostats or
series anticipators of electromechanical thermostats.
WHEN USED WITH SPST CONTROLLER (Figure 9): On a
call for heat, RLY1 is energized making the NO contacts in
SW3, the valve opens. When the valve reaches the fully open
position the cam operated SW1 closes and SW2 opens.
When need for heat is satisfied, the thermostat contacts open,
RLY1 is de-energized and the valve motor is driven closed
through SW1 and the NC contacts of SW3. When the valve
reaches the fully closed position, the cam operated SW2
closes and SW1 opens anticipating the next call for heat
cycle.
Fig. 9. Actuator wiring for SPST controller
(Series 40 and 80).
CHECKOUT
1. Raise the set point of the thermostat above room tem-
perature to initiate a call for heat. Red valve position
lever should move downward to the open position.
2. For auxiliary switch models, observe all control devices.
The valve should open and the auxiliary switch (if
present) should close and make at the end of the open-
ing stroke to activate auxiliary equipment.
3. Lower the set point of the zone thermostat below room
temperature.
4. Observe the control devices. The valve should close
and all auxiliary equipment should stop.
SERVICE
This valve should be serviced by a trained, experienced
service technician.
1. If the valve is leaking, drain system OR isolate valve
from the system. Do not remove body from plumbing.
2. Check to see if the cartridge needs to be replaced.
3. If the motor or other internal parts of the actuator is
damaged, replace the entire actuator assembly.
NOTE: Honeywell hydronic valves are designed and tested
for silent operation in properly designed and installed
systems. However, water noises may occur as a
result of excessive water velocity. Piping noises may
occur in high temperature (over 212°F [100°C]) sys-
tems with insufficient water pressure.