Honeywell MOMO Divertor VC4013 - how does this work ?

[WhatNext]

Hi there !

All the best wishes for 2024 !

I am hoping someone can help me ?

I have been reading about the Honeywell MOMO Divertor valve. ( Ports A, B and AB ).

I understand the valve only moves when mains power is applied - there is no spring inside this valve.

There are 3 wires going to the head of this valve - Brown (Permanent L) Blue (Neutral) and Black (Switched L).

As the Brown wire is permanently live I take it that all the switching must be done by the Black wire ?

Is the operation - apply mains power to Black wire - the valve moves from A to B and then stops ( assuming it is parked at A ) - mains power is removed from the Black wire, by the circuitry inside the head, when the valve has finishing moving.

Apply mains power to the same Black wire - the valve moves from B to A and then stops - once again mains power is removed from the Black wire, by the circuitry inside the head, when the valve has finished moving.

Is this correct ?

Cheers

 

[MeldrewsMate]

From a position of "I haven't tried this" my assumption is as follows:
Brown to L
Blue to N
Valve drives to one position, possibly A
Additionally connect Black to L, valve drives to the other position, possibly B.
Remove Black, valve returns to original position.
There are only two positions, A and B.

 

[DP]

From a position of "I haven't tried this" my assumption is as follows:
Brown to L
Blue to N
Valve drives to one position, possibly A
Additionally connect Black to L, valve drives to the other position, possibly B.
Remove Black, valve returns to original position.
There are only two positions, A and B.

Connecting brown and blue to supply will do nothing.
Black is the neutral leg and brown or blue the drive wires giving MOMO operation