Product Overview

ManualsBrandsHoneywell Home ManualsDampersTwo-way Fan Coil Valve, 1/2" Sweat, 3.5 Cv

Table Of Contents

Contents

VU53S; VU54S;

VU443A; VU444A; VU843A; VU844A

Fan Coil Valves and Actuators

VU Fan Coil Actuator and Valves

APPLICATION

The VU443, VU444, VU843 and VU844 Fan Coil Valve

Actuators are used in conjunction with the 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.

IMPORTANT

These valves are not for use in systems containing

dissolved oxygen.

PRODUCT DATA

FEATURES

• Compact construction for easy installation.

• Fits under the cover of most baseboard convectors with

actuator fitted.

ACTUATOR

• One-button, quick release. Secure 3-point, metal latch to

valve body.

• Spring return operation.

• Stainless steel case and aluminum cover.

• Line or low voltage, rust-resistant motors.

• Slotted conduit hole for faster wiring.

• Connecting leads available up to 8 feet (2.4m) long.

• Manual opener for 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 dissassembling the valve.

• VU443, VU843 actuators fit all 2-way VU53 valve bodies

from 1/2" to 3/4".

• VU444, VU844 actuators fit all 3-way VU54 valve bodies

from 1/2" to 3/4".

VALVE

• VU53 provides 2-way, straight-through control of water.

Available in normally closed or normally open

configurations.

• VU54 provides 3-way diverting control of water.

• 300 psi (2,000 kPa, PN20) operating pressure rating.

• Patented ball seal provides long service life, soft close off.

• Triple O-ring seal provides three lines of defence against

corrosion and water leakage around driveshaft.

• Quick opening flow curve.

• Choice of sweat brass end connections.

Contents

Application .......................................................................... 1

Features .............................................................................. 1

Specifications ...................................................................... 2

Ordering Information ........................................................... 2

Installation ........................................................................... 5

Operation ............................................................................ 6

Checkout ............................................................................. 7

95C-10885

Summary of content (8 pages)

PAGE 1
VU53S; VU54S; VU443A; VU444A; VU843A; VU844A Fan Coil Valves and Actuators PRODUCT DATA FEATURES • Compact construction for easy installation. • Fits under the cover of most baseboard convectors with actuator fitted. ACTUATOR • One-button, quick release. Secure 3-point, metal latch to valve body. • Spring return operation. • Stainless steel case and aluminum cover. • Line or low voltage, rust-resistant motors. • Slotted conduit hole for faster wiring. • Connecting leads available up to 8 feet (2.4m) long.
PAGE 2
VU53F,N,S,T; VU54F,N,S,T; VU443A; VU444A; VU843A; VU844A FAN COIL VALVES AND ACTUATORS SPECIFICATION ACTUATOR VALVE Models: VU443, VU843: for use with VU53 2-way valves. VU444, VU844: for use with VU54 3-way valves. Models: VU53: 2-way, normally closed valves. VU54: 3-way diverting valves.
PAGE 3
VU53F,N,S,T; VU54F,N,S,T; VU443A; VU444A; VU843A; VU844A FAN COIL VALVES AND ACTUATORS 1-3/4 (44) 1-3/4 (44) 1-3/4 (44) 1-3/4 (44) 7/8 DIA. (22) 2-3/8 (60) 1 2 3-3/4 (133) 1-1/2 (38) 3/8 (10) 3/8 (10) B VU Actuator. A 7/8 (23) 2-Way B 3-Way AB 15/32 (12) A VU53 Valve with Actuator. VU53 and VU54 Valve Dimensions with Actuator. A 1-5/16 (33) 1-3/8 (35) VALVE BODY SIZE 1/2" Sweat 3/4" Sweat B 1-5/16 (33) 1-11/16 (43) 1 HEIGHT NEEDED TO REMOVE ACTUATOR OR COVER. 2 OPENING FOR 1/2 IN.
PAGE 4
VU53F,N,S,T; VU54F,N,S,T; VU443A; VU444A; VU843A; VU844A FAN COIL VALVES AND ACTUATORS How to Find Valve Pressure Drop 4. Determine the pressure drop across the valve by: 1. Locate the flow rate (in m3/h on the left edge of the graph). 2. Draw a line from the flow rate to the intersection of the kv line. 3. Draw a line from the intersection to the bottom to determine the pressure drop in kPa or Bar. SI (metric) units (Fig.3) 1. Calculate desired flow through valve in m3/h or litres/ second. L/s = 3.
PAGE 5
VU53F,N,S,T; VU54F,N,S,T; VU443A; VU444A; VU843A; VU844A FAN COIL VALVES AND ACTUATORS 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 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. ACTUATOR COUPLING Sweat Copper Models 1.
PAGE 6
VU53F,N,S,T; VU54F,N,S,T; VU443A; VU444A; VU843A; VU844A FAN COIL VALVES AND ACTUATORS NOTE! It is not necessary to drain the system if the valve body assembly remains in the pipeline. OPERATION CAUTION 1. Switch power supplies OFF. Disconnect electrical leads, carefully noting the position and colour of each lead. 2. Place the manual operating lever in the MAN. OPEN position. See Fig. 8. 3. Remove actuator by depressing locking button and lifting straight up.
PAGE 7
VU53F,N,S,T; VU54F,N,S,T; VU443A; VU444A; VU843A; VU844A FAN COIL VALVES AND ACTUATORS CHECKOUT Set to heating mode 1. Raise the setpoint on the zone thermostat above the room temperature to initiate a call for heat. 2. Observe all control devices—the valve should open. 3. Lower the setpoint on the zone thermostat below the room temperature. 4. Observe the control devices. The valve should close. Set to cooling mode 1.
PAGE 8
VU53F,N,S,T; VU54F,N,S,T; VU443A; VU444A; VU843A; VU844A FAN COIL VALVES AND ACTUATORS Home and Building Control Honeywell Inc. Honeywell Plaza P.O. Box 524 Minneapolis MN 55408-0524 Home and Building Control Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, ON M1V 4Z9 Canada Honeywell Latin American Division Miami Lakes Headquarters 14505 Commerce Way Suite 500 Miami Lakes FL 33016 Honeywell Europe S.A.