VU52; VU53; VU54 FAN COIL VALVES
Dimensions:
1-3/4
(44)
3/8
(10)
B
A
2-1/8 (54)
(INVERTED FLARE)
VU53 AND VU54 VALVE DIMENSIONS WITH ACTUATOR
VALVE BODY SIZE
1/2 IN. SWEAT
3/4 IN. SWEAT
1 IN. SWEAT
1/2 IN. NPT
3/4 IN. NPT
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous condi-
tion.
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, experienced service techni-
cian.
4. After installation is complete, check out product opera-
tion as provided in these instructions.
CAUTION
1.
Disconnect power supply before connecting wir-
ing to prevent electrical shock or equipment dam-
age.
2.
On 24V systems, never jumper the valve coil ter-
minals even temporarily. This can burn out the
heat anticipator in the thermostat.
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 remove or
install spring clip.
95C-10884EFS—01
7/8 DIA.
1-3/4
(22)
(44)
2
A
7/8 (23)
B
2-WAY
3-WAY
AB
15/32 (12)
A
VU32, VU53 VALVE WITH ACTUATOR
B
A
1-5/6 (33)
1-5/16 (33)
1-3/8 (35)
1-11/16 (43)
1-11/16 (43)
1-11/16 (43)
1-7/8 (47)
1-7/8 (47)
1-7/8 (47)
1-7/8 (47)
Fig. 1. Mounting Dimensions in inches (mm).
2-3/8
(60)
1
3-3/4
(133)
1-1/2
(38)
HEIGHT NEEDED TO REMOVE ACTUATOR COVER.
1
OPENING FOR 1/2 IN. FLEXIBLE CONDUIT ON OPPOSITE
2
SITE OF MANUAL LEVER FOR ALL MODELS.
Mounting
The valve can be mounted in any position on a vertical line.
See Fig. 2. If the valve is mounted horizontally; the actuator
must be even with or above the center line of the piping. Make
sure to leave enough room above the actuator to remove the
actuator or cover for servicing.
VERTICAL
PIPING
Mount the valve directly in the tube or pipe. Make sure that
the flow through the valve is in the direction indicated by
the arrow stamped on the 2-way valve body.
On diverting valves, the three fittings or ports are labeled on
the bottom of the valve body casting. Port AB is the inlet port
and is open at all times. Port A is closed and Port B is open
2
2-3/8
(60)
2
1
3-3/4
(133)
VU54 VALVE WITH ACTUATOR
HORIZONTAL
PIPING
Fig. 2. Mounting positions.
M32235
M10162A