Brochure

63-8702 85
Motorized Zone Valves
VU443, VU444; VU843, VU844 Fan Coil Actuators
592 70-6910
Fan Coil Actuators
VU443, VU444; VU843; VU844 Fan Coil Actuators
Humidity resistant fan coil valve actuators are used in conjunction
with VU52, VU53 and VU54 valves for controlling the ow of hot
or chilled water in commercial HVAC equipment such as fan coil
units, terminal reheat coils and convectors.
• Compact construction for easy installation.
• Fits under the cover of most baseboard convectors with actuator
tted to valve body.
• One-button, quick release. Secure 3-point, metal latch to valve body.
• Spring return operation.
• Stainless steel case and aluminum cover. Rust-proof nickel-plated
motors available.
• Line or low voltage, rust-resistant motors.
• Manual opener for installation and valve operation on power failure.
• Valve returns to automatic position when power is restored.
• Actuator may be reinstalled or serviced without draining the system
or disassembling the valve.
• Slotted conduit hole for faster wiring.
Dimensions in inches (millimeters)
2
2
1
1
VU53 VALVE WITH VU448 ACTUATOR
VU53 AND VU54 VALVE WITH ACTUATOR
VU5 ACTUATOR
2-3/8
(60)
7/8 DIA.
(22)
1-1/2
(38)
3-3/4
(133)
15/32
(12)
3/8
(10)
1-3/4
(44)
1-3/4
(44)
A
A
B
AB
7
3/8
(10)
A
2-1/8 (54)
(INVERTED
FLARE)
1-3/4
(44)
1-3/4
(44)
B
3-WAY
7/8 (22)
2-WAY
VALVE BODY SIZE A B
1/2 IN. SWEAT 1-5/6 (33) 1-5/6 (33)
3/4 IN. SWEAT 1-3/8 (35) 1-11/16 (43)
1 IN. SWEAT 1-11/16 (43) 1-11/16 (43)
1/2 IN. NPT 1-3/8 (35) 1-5/16 (33)
3/4 IN. NPT 1-11/16 (43) 1-7/16 (37)
1 IN. NPT 1-11/16 (43) 1-7/16 (37)
HEIGHT NEEDED TO REMOVE ACTUATOR OR COVER
OPENING FOR 1/2 IN. CONDUIT ON OPPOSITE SITE OF
MANUAL LEVER FOR ALL MODELS.
M18261A
Application: For controlling the ow of hot or chilled water in
commercial HVAC equipment such as fan coil units, terminal reheat
coils and convectors
Actuator Type: Valve
Control Signal: Two position; SPST
Fail Safe Mode: Spring Return
Electrical Connections: Leads
Power Consumption: Driving – 6 Watts
Timing, Nominal: Driving @ 60 Hz (sec) – 15 sec maximum
Maximum Differential Pressure Ratings (Close-off) (psi): Depends
on Cv rating of valve
Manual operation: Lever
Approximate, Dimensions: 2 3/8 in. high, 3 1/2 in. wide, 2 3/8 in. wide
(62 mm high, 88 mm wide, 60 mm deep)
Ambient Temperature Range: 34°F to 125°F ambient at 200°F Fluid
(1°C to 52°C ambient at 93°C Fluid)
Approvals, CSA: Certied C/US File No. LR1322
Fluid Temperature: 200°F (94°C)
Material
Number
Frequency Internal
Auxiliary
Switch
Stroke Spring Return
Timing
Materials Supply
Voltage
Electrical
Connections
Size
Comments Used With
VU443A1008/U 60 Hz 0 22 deg. Nominal – 4 sec Stainless Case,
Aluminum Cover
120V 6 in. (0.15 m) 2-way NC VU valve body
(VU53)
VU443A1024/U 60 Hz 0 22 deg. Nominal – 4 sec Stainless Case,
Aluminum Cover
208V 18 in. (0.5 m) 2-way NC VU valve body
(VU53)
VU443A1057/U 60 Hz 0 22 deg. Nominal – 4 sec Stainless Case,
Aluminum Cover
277V 18 in. (0.5 m) 2-way NC VU valve body
(VU53)
VU443A1115/U 50 Hz;
60 Hz
0 22 deg. Nominal – 4 sec Stainless Case,
Aluminum Cover
230V 6 in. (0.15 m) 2-way NC VU valve body
(VU53)
VU444A1007/U 60 Hz 0 45 deg. Nominal – 6 sec Stainless Case,
Aluminum Cover
120V 6 in. (0.15 m) 2-way NO (VU52) or 3-way
VU valve body (VU54)
VU444A1098/U 60 Hz 0 45 deg. Nominal – 6 sec Stainless Case,
Aluminum Cover
277V 18 in. (0.5 m) 2-way NO (VU52) or 3-way
VU valve body (VU54)