Honeywell Home 3000 Series Manual

Series-3000 VU52, VU53, VU54; VU442,
VU443, VU444; VU842, VU843, VU844 Fan
Coil Valves and Actuators
VU Fan Coil Actuator and Valves

APPLICATION

The VU442/VU842, VU443/VU843, and VU444/VU844
Fan Coil Valve Actuators are used in conjunction with the
VU52, VU53 and VU54 valves for 2-position control of low
pressure steam, or hot and chilled water with up to 50%
glycol 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, noncorrosive environments.
IMPORTANT
These valves are not for use in open systems or for
control of potable water.
Contents
Application .....................................................................................
Features ..........................................................................................
Specifications ...............................................................................
Installation .....................................................................................
Wiring ...............................................................................................
Operation .......................................................................................
Checkout .........................................................................................
Service .............................................................................................

FEATURES

• Compact construction for easy installation.
• Fits under the cover of most baseboard convectors
with actuator fitted.
ACTUATOR
• One-button, quick actuator 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 (2.4 m) long.
• Manual opener for valve operation with automatic
return when power is restored.
• Actuator may be reinstalled or serviced without
draining the system or disassembling the valve.
• VU442, VU842 actuators fit 2-way VU52 valve bodies.
• VU443, VU843 actuators fit 2-way VU53 valve bodies.
• VU444, VU844 actuators fit 3-way VU54 valve bodies.
VALVE
• VU52, VU53 provide 2-way, straight-through control
of water, or low pressure steam with Class F motors.
• VU54 provides 3-way mixing or diverting control of
water.
• 300 psi (2,000 kPa, PN20) operating pressure rating.
• 15 psi low pressure steam rating for 2-way products
• Patented ball plug provides long service life, soft
close off.
• Triple stem O-ring seal.
• Quick opening flow curve for rapid response.
1
• Choice of sweat, f-NPT, or inverted flare connections.
1
2
5
7
7
8
8
PRODUCT DATA
95C-10885-01