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WHEN INSTALLING THIS PRODUCT:
1. Read these instructions carefully. Failure to follow them could
damage the product or cause a hazardous condition.
2. Check the ratings given in the instructions and on the product to
make sure the product is suitable for your application.
3. Installer must be a trained and experienced service technician.
4. Always conduct a thorough check-out when installation is completed.
5. While not necessary to remove the actuator from the body, it can be
removed for ease of installation. The actuator can be installed in any
of the four orientations to suit the most convenient wiring direction.
Actuator latching mechanism works only when the lengths of the
actuator and the valve body are parallel to each other.
6. An extra 1" (25 mm) head clearance above the actuator, is required
to remove the actuator.
!
CAUTION:
Disconnect power supply before connecting wiring to prevent
electrical shock and equipment damage.
On 24V systems, never jumper the valve coil terminals, even
temporarily. This may damage the thermostat.
!
IMPORTANT:
For trouble-free operation of the product, good installation
practice must include initial system flushing, chemical
water treatment, and the use of a 50 micron (or finer)
system side stream filter(s). Remove all filters before
flushing.
Put the VC actuator manual lever in the 3-way actuator fully up
position or the fully open (down) position to allow initial system
flushing with the actuator mounted. This may be done without
electrical hook-up. Alternatively, reusable flush caps, part #
272866B, may be purchased separately for use in initial
flushing of dirty hydronic systems.
Do not use boiler additives, solder flux and wetted
materials which are petroleum based or contain mineral oil,
hydrocarbons, or ethylene glycol acetate . Compounds
which can be used, with minimum 50% water dilution, are
diethylene glycol, ethylene glycol, and propylene glycol
(antifreeze solutions).
PLUMBING
The valve may be plumbed in any angle, including vertical piping, but
preferably not with the actuator below horizontal level of the body.
Make sure there is enough room around the actuator for servicing or
replacement.
For use in diverting applications, the valve is installed with the flow
water entering through bottom port AB, and diverting through end ports
A or B. In mixing applications the valve is installed with inlet to A or B
and outlet through AB.
Mount the valve directly in the tube or pipe. Do not grip the actuator
while making and tightening up plumbing connections. Either hold
valve body in your hand or attach adjustable spanner (38 mm or 1-1/2")
across hexagonal or flat faces on the valve body (Figure 4).
INSTALLATION
3
If assembling valve train on a bench, take care not to deform body with
vice. Do not place the raised "H" logo between the jaws of the vice.
Excess jaw force can deform the body.
Figure 4 - Plumbing of the VC Valve
COMPRESSION MODELS
For compression fitted models, tighten the compression nuts enough to
make a watertight seal. TAKE CARE NOT TO OVER TIGHTEN.
Maximum torque limit is 33 ft-lb for the 22 mm compression fitting, and
48 ft-lb for the 28 compression fitting.
SWEAT MODELS
On sweat fitted valves, the cartridge is shipped loose to avoid being
damaged during the solder operation.
1. Remove valve actuator from body and solder the connecting pipes in
accordance with normal soldering practices.
2. After soldering and valve has cooled, remove cartidge assembly from
plastic bag, insert into the valve body and tighten down with enclosed
wrench until it bottoms out. DO NOT OVER TIGHTEN (maximum
torque is 40 in-lb). The top surface of the cartridge will be flush with
the top edge of the body casting. See Figure 5.
3. Replace valve actuator.
TO REPLACE CARTRIDGE (IF REQUIRED)
Two-way cartridges fit all two-way bodies. The Cv rating of a valve can
be changed by replacing the cartridge, allowing for unique
combinations. Three-way cartridges fit all three-way bodies.
1. Disconnect power supply before servicing to avoid electrical shock or
equipment damage.
2. Depending on the installtion, it may be necessary to disconnect leadwires
to valve actuator, or depress tab on Molex™ connector and remove.
Where appropriate, label wires for rewiring.
3. Remove valve actuator by pressing up on the latch mechanism located
directly below the red manual open lever with thumb (See Figure 5).
Simultaneously press the actuator down towards the valve body with
moderate hand force and turn the actuator counter-clockwise by 1/8
turn (45°). Lift actuator off the valve body.
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