4. To replace a cartridge,
isolate flow to the valve
using installed shut
off valves or other service equipment designed for this purpose.
Remove old cartridge with 40007029-002 wrench supplied with
the replacement unit. It may be necessary to use pliers or other
tools to remove the old cartridge due to calcium or dirt buildup in
the valve body.
5. Clean the valve surfaces marked
*
and
**
in Figure 6 to ensure
the new cartridge O-rings seal at these points. Use care to avoid
damage to these surfaces ( ** for 3-way valves only).
6. Remove the pre-lubricated cartridge assembly from its plastic
bag. Thread it by hand into the valve body and tighten it down
with the enclosed wrench until it bottoms out. DO NOT OVER
TIGHTEN: maximum torque is 40 in-lb. [4.5 Nm]. The top
surface of the cartridge should be flush with the top edge of the
body casting.
7. Replace valve actuator by following the procedure in the "To Install
Actuator" below.
8. Reconnect leadwires or Molex™ connector if necessary.
9. Refill hydronic system or restore system flow by opening isolating
valves.
10. Restore power, and checkout operation of cartridge in valve, making
sure of no internal seat leakage or external body leakage.
Restore system pressure slowly to the valve to allow any trapped
air to escape. Check for leaks. Re-install the actuator.
TO INSTALL ACTUATOR
NOTE:
Installation of a new actuator does not require draining the
system, provided the valve body and valve cartridge assembly
remain in the pipeline. Wiring may be done either before or after
the actuator is installed.
Refer to the VC Actuator Installation and Instruction sheet for
detailed wiring and check-out instructions.
1. The actuator head is automatically latched to the valve. Align
the coupling hole in the bottom of the actuator with the valve
stem. Press the actuator down towards the body with moderate
hand force and turn the actuator counter-clockwise by 1/8 turn
(45 degrees) to line up the actuator with the piping. The lock will
click when engaged (See Figure 7).
NOTE:
The actuator can also be installed at right angles to the
valve body but in this position the lock mechanism will not
engage.
2. Connect leadwires.
3. Restore power and check operations.
Figure 7 - Lock Mechanism to detach Actuator
Figure 5 - Installing Cartridge Figure 6
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 valve 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 VC series 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 also occur in high
temperature (over 212
o
F [100
o
C]) systems with insufficient water
pressure.
*
*
**
Automation and Control Solutions
Environmental Control Products
1985 Douglas Drive North
Golden Valley, MN 55422-3992
In Canada:
Honeywell Limited-Limitee
35 Dynamic Drive, Toronto, ON M1V 4Z9