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Mend Honeywell V4073A Mid Position Valve

Mid position valve?

Could someone please tell me if:

Honeywell 28mm V4073A
Siemens 28mm MVA328
Landis & Gyr MV-A328

Motorised valves are fully interchangable, is the internal wiring the same?

Firegem
March 2012
HoneywellHoneywell V4073AHeating, Home Heating SystemsMid Position Valve
All are 5 wire same function but not compatible

ltd
March 2012
If the wiring colours in the leads are the same AND they have the same number of leads then you will be ok.

Gas58man
March 2012

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Honeywell V4073A & Valve Interchange - Help