Honeywell V4043H1106 28mm Zone Valve, 24 V

Product Information

Much of what we describe also applies to ACL Drayton motorised valves like the Drayton 2-port ZA5/679-2 22mm zone valve and the Drayton 3-port MA1/679 22mm mid-position valve. Iflo motorised valves and British Gas motorised valves have similar faults. It may also apply to the Tower VAL222MV motorised valve, the Siemens CZV222 motorised valve and the Flomasta 27900SX motorised valve. Since having our bathroom renovated, which included replacing a single radiator with a double, there has been a buzzing / humming noise coming from the boiler. Tonight, I think I have narrowed it down to the Honeywell V4043H motorised valve. The Y Plan and S Plan names are more commonly used when other Honeywell controls are also used (programmer, room thermostat, cylinder thermostat and wiring centre). The Honeywell V4043H1106 28mm 2 Port Zone Valve 240V series of two port motorised valves has a wide range of flow control applications in domestic central heating systems. The V4043H normally closed models have end switches for electrical control of boiler and pump. The normally open model is particularly applicable to the control of solid fuel systems since it will always fail-safe in the event of a power failure. Key Features If the property uses a combi boiler (rather than a heat-only boiler) the boiler will usually contain a diverter valve. In small properties there may be no other motorised valves.

In larger properties, 28mm valves may be used (the 5-wire 3-port V4073A1088 and the 6-wire 2-port V4043H1106). The 28mm V4043H1106 2-port zone valve has a6 th wire, coloured white. This white wire might not be used. In that case it should be made safe electrically. The rubber ball sits against the circular port (right side in photo), closing it off. We’re told that the ball touches one edge of the circular port first, causing the ball to rotate slightly on its spindle. This regular slight rotation evens out distortions in the ball. A little piece of elegant design work by Honeywell!However, if you need to replace the motor it may be easier to remove the powerhead so you can work on it in the open. Remember, on early Honeywell motorised valves (pre-1985) you can’t remove the powerhead without draining down first! A normally-open valve is open when no power is being applied to it and needs electrical power to drive it closed. Occasionally we come across a Honeywell motorised valve where the powerhead jams but the spindle (actuator shaft) is still free. Where this happens it is usually with the valve jammed open. If all the power to the central heating system is turned off, and the manual lever is still loose across the whole slot, the mechanism may be jammed. The Chancellor Jeremy Hunt has today (Wednesday 22 November) announced a range of tax, benefits and savings measures. We round up the key announcements and what they mean for you.

Replacing a failed Synchron motor in a Honeywell motorised valve is quite straightforward, assuming you know how to work with mains electricity safely. Make sure you read the whole process through before starting! The powerhead or actuator is the electrical section. It’s comprised of a motor and some electronic components and usually has one or more microswitches. Honeywell V4043H1056 22mm 2-port zone valves have five wires: green/yellow is Earth, blue is Neutral, brown is Live (or Line) to the motor, grey and orange are connected to the end switch and form part of a separate circuit. Seized motorised valve spindle in an old Satchwell Sunvic 2-port motorised valve. The water leakage has caused white oxides to form round the brass spindle, making it too stiff to turnThe Honeywell V4073A 3-port valve has five wires. These are blue, green/yellow, white, grey and orange. Note that the grey and orange wires are used differently from the grey and orange wires of the 2-port valve! lt;p>The Honeywell V4043H1106 28mm 2 Port Zone Valve 240V series of two port motorised valves has a wide range of flow control applications in domestic central heating systems. The V4043H normally closed models have end switches for electrical control of boiler and pump. The normally open model is particularly applicable to the control of solid fuel systems since it will always fail-safe in the event of a power failure.</p> That noise and that bump are diagnostic. They tell us that the valve has moved into the mid-position where both Heating and Hot Water ports are open. If you can make a Honeywell 3-port mid-position valve move into all three of those positions, the valve and controls appear to be wired correctly and the valve appears to be working normally. Replacement Honeywell SYNCHRON motors are available but are a bit more expensive. For a long time we’ve used the standard SYNCHRON motors as replacements, with very few problems. Typically, a small or medium sized property will have either one 3-port valve (which splits the central heating water flow between cylinder and radiators) or two 2-port valves (one governing flow to the cylinder and one governing flow to the radiators).