honeywell y plan

[colincop]

hello can anybody help i have recently installed a y plan
motorised valve to my system and since then have been experinced
problems with my rwb9 programmer .iam wondering if there is a certain
way that this valve should go on .i was told to push the spring loaded
mech to the far right to locate it to the brass body .is this right
regards colin

 

[ChrisR]

If you got the 2 small scrwws in properly, it's on.
The valve wouldnn't affect the programmer, unless you made a complete horlicks of the wiring and you're shorting it out!

 

[colincop]

hello chris when i replaced the new valve i copied the wiring exactly
but during my investigation i have tried to sort out the wires at the back of the rwb9 but cant seem to get any sequences right would you happen to know it i have the following little black/ little red/ big red/big black/and yellow and green they go into plate with the markings
from left to right N/L/1/2/3/4

 

[colincop]

hello chris when i replaced the new valve i copied the wiring exactly
but during my investigation i have tried to sort out the wires at the back of the rwb9 but cant seem to get any sequences right would you happen to know it i have the following little black/ little red/ big red/big black/and yellow and green they go into plate with the markings
from left to right N/L/1/2/3/4

 

[MANDATE]

just googled the rwb9 to look at the data.
I don't think anyone can help you, until you know where the wires you describe lead to.
Also, it's not clear if the yellow and green is one wire or two wires.
I can tell you term 1 is HW OFF, term 2 you wont use, term 3 is HW ON and term 4 is CH ON.

 

[colincop]

thanks for that reply
apparentely the yellow and green is a single
wire which is the switched wire
would this help
regards colin

 

[twgas]

apparentely the yellow and green is a single
wire which is the switched wire

have you not seen it? and connections 1,2,3, and 4 are all switched.

it might help if you tell us where the other ends of the wires go

 

[MANDATE]

You still need to know more about each of the wires.
ignoring any earth wires, your programmer needs five wires.
That is a 'live' and 'neutral' input. Most likely a red 'live' and a black 'neutral. shouldn't be too difficult to determine which these are with a meter or test lamp
The three output wires are
1. a wire that leads to the input side of the room stat (via the terminal box). when you have proved which wire this is, connect it to term 4, CH ON.
2. a wire that leads to the mid pos valves 'grey' wire in the terminal box.
again when proved connect to term 1 HW OFF.
3. This leaves one remaining wire, which goes to the input side of the cylinder stat ( this will be via the terminal box). connect this to term 3 HW ON.
These 3 wires are all switched lives.

If it helps, I can tell you the CH ON wire may go like this.
programmer to terminal box term?
terminal box to room stat
room stat to terminal box term ? (look for white wire )
terminal box to motorized valves white wire.
The HW OFF may go like this
programmer to terminal box term?( look for 'grey' wire
terminal box to motorized valves 'grey' wire
The HW ON may go like this.
programmer to terminal box, term ?
terminal box to cylinder stat. (com terminal)

The cylinder stat is like a two way switch with one input terminal but two output terminals. One of the output terminals feeds the boiler until the temperture is satisfied, at which point power is cut and switched the second output terminal. a wire from this terminal joins up with the 'grey' wire mentioned before ( HW OFF)

 

[colincop]

thankyou very much for your
advise have managed to correct the fault using your information
regards colin