Honeywell V4044C User Manual

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V4044C Diverter Valve

APPLICATION

The V4044C valve has been designed to control the flow of
water in a small bore domestic central heating system where
both radiator and hot water cylinder circulation are pumped. It
is typically suited for systems up to 90,000 Btu/h (26 KW).

SPECIFICATIONS

Voltage: 230-240V ~ 50 Hz

Power Consumption: 6W

Lead Supplied: 1 metre, 5 core

Operating Temperature Range: +5 to +88° C

INSTALLATION INSTRUCTIONS

Maximum Ambient Air Temperature: +52° C

Pipe Fitting Sizes: 22 mm & 28 mm compression fitting, 3/4”

& 1” BSP

Dimensions and KV values: See diagrams

SPARES AVAILABLE

Powerhead Part No. 40003916-002
Motor Part No. 40002737-003
Ball & O-ring Kit Part No. 272742A CARD

Fig. 1. Dimensions (mm)

Fig. 2. Flow Characteristics

95C-10818—04

V4044C DIVERTER VALVE

INSTALLATION

V4044C incorporates a manual lever, the lever should
normally be in ‘AUTO’ position, but can be moved to ‘MAN.
OPEN’ position for system draindown and filling purposes
only.

Before fitting the valve, read through the plumbing and wiring
instructions.

This product MUST be installed by a competent person. The
installation MUST conform to I.E.E. Regulations and with The
Electricity at Work Regulations.

A Class ‘A’ switch (having contact separation of at least 3 mm
in all poles) must be incorporated in the fixed wiring as a
means of disconnecting the supply. The system must be
appropriately fused.

PLUMBING

The valve MUST NOT be fitted on the return pipework under
any circumstances. Flow from the boiler must be connected to
port AB, the radiator circuit to port A and the hot water cylinder
circuit port B.

The valve may be plumbed in at any angle, but must not be
mounted so that the valve head is below the horizontal level of
the pipework. In the unlikely event of a leak, a safety hazard
could result.

Do not grip the valve head while making and tightening up
plumbing connections. Attach a spanner (32 mm or 1 1/4” AF)
onto the valve body at each port, whilst tightening up the nuts.
Tighten compression nuts enough to make a watertight seal.

TAKE CARE NOT TO OVERTIGHTEN.

NO

MAN
OPEN

AUTO

MAN
OPEN

AUTO

NO

M32208

WIRING

The wiring diagram (Fig. 3) shows relevant connections to a
Honeywell junction box (Part No. 42002116-001). Ensure that
each numbered, lettered or coloured wire is connected to the
correct terminal in the junction box. Make sure all connections
are good and all terminal screws are firmly tightened.

Valve wiring configuration is:
Brown = Motor open
Blue = Neutral
Green/Yellow = Earth

NOTES:

a. Wiring diagram shows connections to a programmer

with separate control of heating and hot water.

b. If single channel time clock is used, connect

switched live from time clock to terminal 4 or 6 at
junction box, then link terminal 4 to terminal 6 with a
link wire.

c. If the programmer or time clock have no ‘Hot water

OFF’ terminal, then the time clock will need to be
replaced.

95C-10818—04 2