Honeywell VU443, VU444, VU843, VU844 Catalog Page
Fan Coil Actuators
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
VU443, VU444; VU843; VU844 Fan Coil Actuators
The VU844 Fan Coil Valve Actuators are used in conjunction
with the VU52, VU53 and VU54 valves for controlling the flow of
hot or chilled water in commercial HVAC equipment such as fan
coil units, terminal reheat coils and convectors. These valves
are humidity resistant and are suitable for use in condensing,
non-corrosive environments.
• Compact construction for easy installation
• Fits under the cover of most baseboard convectors
with actuator fitted 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)
Actuator Type: Valve
Fail Safe Mode: Spring Return
Dimensions, Approximate: 2 3/8 in. high, 3 1/2 in. wide, 2 3/8 in. wide
(62 mm high, 88 mm wide, 60 mm deep)
Electrical Connections: Leads
Frequency: 60 Hz
Manual operation: Lever
Stroke: 22 deg.
Power Consumption (driving): 6 Watts
Product
Number
VU443A1008/U
VU443A1024/U
580 customer.honeywell.com 70-6910
Control
Signal
Tw o
position;
SPST
Tw o
position;
SPST
Timing
(seconds)
Maximum
Driving @
60 Hz (inch) (m)
15 sec — — 120V 6 in. 0.15 m — 0 22 deg. 4 sec. For controlling the flow of
15 sec — — 208V 18 in. 0.5 m — 0 22 deg. 4 sec.
Materials: Stainless Case, Aluminum Cover
Maximum Differential Pressure Ratings (Close-off): Depends on
Cv rating of valve
Medium Temperature: 200 F (94 C)
Ambient Temperature Range: 34 F to 125 F ambient at 200 F Fluid
(1 C to 52 C ambient at 93 C Fluid)
Electrical
Connection
Length
Type of
Internal
Auxiliary
Switch
Switch
Ratings
Supply
Vo lt ag e
Approvals
Canadian Standards Association: Certified C/US File No. LR1322
Type of
Internal
Auxiliary
Switch
Number
of Internal
Auxiliary
Switch
Spring
Return
Timing
Stroke
(Nominal
(inch)
(sec)) Comments
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
Used
With
2-way NC
VU valve
body
(VU53)
Fan Coil Actuators
Product
Number
VU443A1057/U
VU443A1115/U
VU443A1180/U
VU443E1009/U
VU444A1007/U
VU444A1098/U
VU444A1106/U
VU444A1155/U
VU843A1004/U
VU843A1087/U
VU844A1003/U
VU844A1060/U
Control
Signal
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Tw o
position;
SPST
Timing
(seconds)
Maximum
Driving @
60 Hz (inch) (m)
15 sec — — 277V 18 in. 0.5 m — 0 22 deg. 4 sec. For controlling the flow of
15 sec — — 230V 6 in. 0.15 m — 0 22 deg. 4 sec.
15 sec — — 120V 6 in. 0.15 m — 0 22 deg. 4 sec. Nickel plated motor for
15 sec SPST,
15 sec — — 120V 6 in. 0.15 m — 0 45 deg. 6 sec. For controlling the flow of
15 sec — — 227V 18 in. 0.5 m — 0 45 deg. 6 sec.
15 sec — — 230V 6 in. 0.15 m — 0 45 deg. 6 sec.
15 sec — — 120V 6 in. 0.15 m — 0 45 deg. 6 sec. Nickel plated motor for
15 sec — — 24V 6 in. 0.15 m — 0 22 deg. 4 sec. For controlling the flow of
15 sec — — 24V 6 in. 0.15 m — 0 22 deg. 4 sec. Nickel plated motor for
15 sec — — 24V 6 in. 0.15 m — 0 45 deg. 6 sec. For controlling the flow of
15 sec — — 24V 6 in. 0.15 m — 0 45 deg. 6 sec. Nickel plated motor for
Type of
Internal
Auxiliary
Switch
N.O.
Switch
Ratings
1 A Pilot
Duty
Supply
Vo lt ag e
120V 18 in. 0.5 m SPST,
Connection
Length
Type of
Internal
Auxiliary
Switch
N.O.
Number
of Internal
Auxiliary
Switch
1 22 deg. 4 sec. For controlling the flow of
Spring
Return
Timing
Stroke
(Nominal
(inch)
(sec)) Comments
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
andconvectors
added humidity resistance;
For controlling the flow of
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors; Aux
Switch Rating - Inductive:
2.2 A from 5 to 110 Vac,
1.0 A from 110 to 277 Vac
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
added humidity resistance;
For controlling the flow of
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
added humidity resistance;
For controlling the flow of
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
added humidity resistance;
For controlling the flow of
hot or chilled water in
commercial HVAC
equipment such as fan coil
units, terminal reheat coils
and convectors
Electrical
Used
With
2-way NC
VU valve
body
(VU53)
2-way NO
(VU52) or
3-way VU
valve
body
(VU54)
2-way NC
VU valve
body
(VU53)
2-way NO
(VU52) or
3-way VU
valve
body
(VU54)
Commercial
Components
70-6910 581
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