Unitary Valve Actuator

VU443, VU444; VU843; VU844

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.

 

 

SPECIFICATIONS

 

Actuator Type

Valve

Control Signal

SPST

Fail Safe Mode

Spring Return

Electrical Connections

Leads

Electrical Connection Length

6 in.

Frequency

60 Hz

Manual operation

Lever

Stroke

22 deg. (24 grad.)

Supply Voltage

24V, 120V, 208V, 240V, or

 

277 Vac

Materials

Stainless Steel Case,

 

Aluminum Cover,

 

Nickel-plated motors available

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)

APPROVALS

 

Canadian Standards Association

Certified C/US

 

 

FEATURES

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.

s

submittal

DIMENSIONS DIAGRAM

7/8 DIA.

2-3/8

(22)

(60)

 

1

2

 

 

3-3/4

1-1/2

(133)

(38)

 

15/32

 

(12)

 

VU53 VALVE WITH VU448 ACTUATOR

1-3/4

1-3/4

 

 

 

(44)

(44)

 

 

 

 

 

 

1-3/4

1-3/4

 

 

 

(44)

(44)

3/8

 

 

 

 

(10)

 

 

 

 

 

 

 

3/8

 

 

 

 

(10)

 

B

A

7/8 (23)

 

 

 

 

B

 

 

 

2-WAY

 

7

AB

 

3-WAY

 

 

 

 

A

A

 

 

 

2-1/8 (54)

 

 

VU5 ACTUATOR

 

 

 

 

(INVERTED

 

 

 

 

FLARE)

 

 

 

 

Sheet

 

 

VU53 AND VU54 VALVE WITH ACTUATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VALVE BODY SIZE

A

B

 

 

 

 

1/2 IN. SWEAT

1-5/6 (33)

1-5/6 (33)

 

 

HEIGHT NEEDED TO REMOVE ACTUATOR OR COVER

 

3/4 IN. SWEAT

1-3/8 (35)

1-11/16 (43)

 

1

 

1 IN. SWEAT

1-11/16 (43)

1-11/16 (43)

 

 

 

 

2

OPENING FOR 1/2 IN. CONDUIT ON OPPOSITE SITE OF

 

1/2 IN. NPT

1-3/8 (35)

1-5/16 (33)

 

MANUAL LEVER FOR ALL MODELS.

 

3/4 IN. NPT

1-11/16 (43)

1-7/16 (37)

M18261

 

 

115

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Image 115
Honeywell MS4103 manual Unitary Valve Actuator, VU443, VU444 VU843 VU844, 115, IN. NPT 11/16