Swapping PIR for humidistat

[blackworx]

Hi,

Apologies for the lazy question. It's been a long day and my brain is fried. Feel free to tell me to bu**er off and find the answer for myself.

We've got a single inline fan serving two internal rooms (WC & bath) parallel switched by two PIRs (one in each room).

I want to swap the bathroom PIR for a humidistat, but I'm not 100% sure of the wiring, assuming it is actually possible with the current setup.

Below is a photo of the bathroom PIR as it is currently wired.

The humidistat is a Manrose 1361 with the following connections:

Mains live
Switched live
Mains neutral
Fan neutral
Fan live

Further info (not sure if it's pertinent): the fan has its own isolator switch in the kitchen, where it is sited, and there is no interaction/control from the light switches for either the WC or the bathroom - it's all down to the PIRs.

My hope is that some kind soul will forgive my ignorance/laziness and tell me that, yes, it's possible, and this is where you put the wires.

 

[AndyPRK]

Could do with more into on the humidity stat. Has more connections than expected.

HERE

http://www.tlc-direct.co.uk/Technical/DataSheets/Manrose/MR1361_Instructions.pdf

 

[AndyPRK]

TRY THIS

Mains live BROWN
Switched live NOT CONNECTED
Mains neutral BLACK
Fan neutral NOT CONNECTED
Fan live GREY

 

[EFLImpudence]

There's a very clear diagram in the instructions.
I'm not sure what is being asked.

http://www.tlc-direct.co.uk/Technical/DataSheets/Manrose/MR1361_Instructions.pdf



And the CPC(earth wire) should not be cut.

 

[blackworx]

Andy thanks worked a charm!

Impudence I did check the wiring diagram first but I'm not a spark and wasn't sure which wire was which, given that I didn't want to wire it exactly as per the diagram.

All done now though - thanks again Andy

Regarding the earth - the PIR was originally fitted by an electrician. I can see the PIR unit has an earth terminal which was not connected, but the humidistat doesn't have an earth terminal and it's got a surface mount ABS pattress so no metal wall box to connect earth to, so where would it go?