Design
V4043C zone valves consist of:
• 2-way valve housing with BSPP internal threads
• Control ball assembly
• Actuator assembly with cable
Materials
• Valve housing made of forged brass
• Spindle shaft made of brass
• O-ring seals made of EPDM rubber
• Ball plug made of NBR rubber
• Actuator cover and base made of zinc-plated steel
V4043C
Motorized Zone Valves
2-PORT HYDRONIC VALVES
PRODUCT DATA
Application
Honeywell V4043C 2-port hydronic valves are used in
domestic and small commercial heating and cooling
applications to control the flow of hot or cold water.
They are designed for on-off zone control of domestic systems and can be used to control individual fan coil, radiator,
space heater or convector applications. They can be controlled by a line voltage SPST controller such as a room
thermostat, aquastat or flow switch.
The actuator head is removable without affecting the integrity
of the water system.
Features
• Rugged design
• Control by a line voltage SPST controller
• Minimal actuator power consumption
• Actuator head installation does not require draining of
the system
• High flow rate capacity
• Indifferent to dirt in system
Specifications
Medium Water or water-glycol mixture
pH-value 8...9.5
Operating temperature 5...88°C (41...190°F)
Ambient temperature max. 50°C (122°F)
Operating pressure max. 8.6 bar (125 psi) static
Differential pressure see chapter “Dimensions” below
k
vs (cv)-values see chapter “Dimensions” below
Flow A – B
Starting position normally closed
Voltage 220-240V, 50Hz
Power consumption 6W / 0.042A
Nominal timing On: 12 seconds under power
Electrical termination 1m flying lead, heat resistant
Shipping temperature -40…65°C (-40…149°F)
Humidity rating 5…95% RH (non-condensing)
Atmosphere non-corrosive, non-explosive
(max. 50% glycol content),
quality to VDI 2035
Off: 6 seconds under spring
return
cable
Honeywell • All rights reserved EN0H-0324GE25 R0906
V4043C
Function
V4043C 2-position normally closed hydronic valves are used
in domestic and small commercial applications to control the
flow of hot water. They consist of an actuator and a valve.
With the manual opener set to AUTO and the actuator
energized, the valve is opened. When the actuator is deenergized, a spring-return mechanism drives the valve to the
closed position. The valve can also be opened with no
electrical power by moving the manual opening lever over the
stop and pushing slowly and firmly to the MAN. OPEN
position. The stop permits the valve to be locked in the open
position. The valve returns to the automatic position when the
valve is energized.
Wiring
Fig. 3. Wiring diagram for V4043C
Dimensions and Ordering Information
A power failure will leave the valve at the spring-returned
position. When power is restored, the valve will respond to
controller demand.
Fig. 1. V4043C in closed
position
Fig. 2. V4043C in open
position
Wire Function
a = brown line (power supply)
b = blue neutral
c = green/yellow earth (ground)
Fig. 4. V4043C 2-way zone valve
Table 1. Dimensions and Ordering Information
off pressure
Dimensions Body kvs-value max. close-
A B C D
OS-No.
1/2” BSPP (internal) 3.0 1.38 bar 87 98 60 96 V4043C1255
3/4” BSPP (internal) 6.9 0.55 bar 87 98 60 96 V4043C1263
1” BSPP (internal) 8.6 0.45 bar 87 98 60 96 V4043C1271
NOTE: All dimensions in mm unless stated otherwise
ACS Control Products
Honeywell GmbH
Hardhofweg
74821 Mosbach, Germany
Phone: +49 (6261) 810
Fax: +49 (6261) 81393
www.honeywell.com
EN0H-0324GE25 R0906
September 2006
© 2006 Honeywell International Inc.
Subject to change • All rights reserved
Manufactured for and on behalf of the Environmental and Combustion
Controls Division of Honeywell Technologies Sàrl, Ecublens,
Route du Bois 37, Switzerland or by its Authorized Representative.