Replacement powerhead for use with the Honeywell V4043C and V4043H Zone Valves.
Power head assembly can be replaced without drain down.
Motorised Zone Valve. The V4043H valve has been designed to control the flow of water in iron and copper pipe systems. Although specifically designed for small bore domestic central heating systems, the valve can be used in commercial and industrial applications.
Pipe fitting sizes:
22mm & 28mm compression fitting, 3/4” & 1” BSP Dimensions and KV values.
V4043H 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 3mm in all poles) must be incorporated in the fixed wiring as a means of disconnecting the supply. The system must be appropriately fused.
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 (32mm or 11/4” 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.
To ensure the valve is plumbed and wired correctly, carry out the following checks after filling the system and switching on the power.
Reset both thermostats to the temperature required, normally 60°C for cylinder thermostat and 20°C for room thermostat. Return programmer to ‘Auto’ or mode selected by the householder. Full installation wiring and operating instructions for SUNDIAL products are included in every product pack. For special wiring diagrams or applications, contact Honeywell.
ENSURE THAT VALVE HEADS HAVE FREE AIR MOVEMENT AROUND THEM.
Delivery time: Next Day Delivery.