Honeywell V4073 Mid-Position Valve - any experts?

Guzzles · 18 Apr 2007

Hi,

recently changed valve & head (head burnt out). Wired up as instructed, completed all checks and confirm working as expected. I have noticed that a 'feature' that is probably there all the time, but only apparent when you start looking.
If you have HW Tank stat satisfied, the controller set to CH ON + HW OFF, and then the controller/timer switches CH OFF, the V4073 is left in 'hold in last position' mode as it is getting a live on the Orange and Grey wires. This means the valve is powered on (and gently vibrating) for long periods. The only way to stop is is to flick the HW ON for a bit to reset valve - you hear the spring pull the valve back. It is doing what the guide states, but I am surprised in this energy efficient age we have all these valve consuming power in a mode that they must be in for the majority of the time. Any explanations, thoughts, opinions or workarounds or I am just a sad git?

Softus · 18 Apr 2007

What do you think is causing the vibration?

Agile · 18 Apr 2007

The power consumption is only about 4 or 5 watts which is irrelevant compared with your porch or driveway lights.

Tony

Softus · 18 Apr 2007

My porch light consumes 11 Watts - now what say you?

ChrisR · 19 Apr 2007

If you're concerned about it get yerself a Satchwell programmer, which have a feature to "release" the 3 port mechanism.

bobtheburns · 3 Dec 2007

When your heating or heating and hot water is on , the motor is activated ,therefore consuming about 5 watts . In the hot water only position , the motor is deactivated ,so using no power (except what your timer ,programmer is using)

bengasman · 3 Dec 2007

The energy wasted in this way by the valve is probably less than one percent of that wasted by the cylinder, which is again only a fraction of what is wasted by inefficient heating and inadequate draft proofing and insulation. Do not worry about it, all our energy use is subject to large amounts of tax revenue for our government, which would be in serious trouble if we all suddenly became energy efficient.

petit_pablo · 3 Dec 2007

The valve sitting in heating after a heating demand is normal. As said above, the power used is negligable.

mick. · 3 Dec 2007

oops should have been my own thread ..sorry

gas4you · 3 Dec 2007

Depends what boiler you have.

Modern boilers require a permanent live from terminal 1 and a switched live from the orange wire terminal in your diagram.

diynot

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Honeywell V4073 Mid-Position Valve - any experts?

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