Honeywell VU52 Información Del Producto página 3

VU52; VU53; VU54 FAN COIL VALVES
when the valve is de-energized. Refer to the equipment
manufacturer instructions to determine which port (A or B)
should be connected to the coil bypass.
Sweat Copper Models
1. Use new, properly reamed pipe, free from dents or cor-
rosion.
2. Place the valve on the pipe. Rotate the valve stem so
that the shaft slot points to the notch in the side of the
body (90° to flow direction). See Fig. 3. This protects the
plug inside the valve by removing it from the seat.
3. Sweat the joints, keeping the outer surface free from
solder. DO NOT use silver solder because of the high
melting temperature required.
SLOT
Fig. 3. Slot position.
CHECKOUT
Installing Actuator
NOTE: VU-series actuator may be wired either before or
after installation on valve body.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
SHAFT SLOT IN VALVE
STEM POINTING TO
NOTCH ON SIDE OF
VALVE BODY
M32236
® U.S. Registered Trademark
© 2010 Honeywell International Inc.
95C-10884EFS—01
Printed in U.S.A.
1. Rotate valve stem so that shaft slot points to notch on
side of valve body, per Fig. 3.
2. Set position lever on VU-series actuator to MAN. OPEN
position.
3. Snap actuator onto body.
For instructions for operating the valve actuator, see the
Product Data literature provided for the specific actuator.
SERVICE
This valve should be serviced by a trained, experienced
service technician.
1. If the valve is leaking, drain the system and check to
see if the O-ring needs replacing.
2. If the gear train is damaged, replace the entire actuator.
See the Installation section. If the motor is burned out,
replace the motor.
3. Wear safety glasses to protect eyes from injury
when removing or installing the large spring clip
that holds the actuator plate to the valve body.
Use proper snap ring pliers to removed or install
spring clip.
NOTE: Honeywell fan coil valves are designed and tested
for silent operation in properly designed and installed
systems; however, water noises can occur as a
result of excessive water velocity or piping noises
can occur in high temperature (higher than 212° F
[100° C]) systems with insufficient water pressure.
Valves are designed for normal cycling operations.
Product life will be shortened if energized continu-
ously or if operated above rated temperatures.
T.D. Rev. 10-10