RF Thermostat question...

[Draytoc]

Hi, I hope you can advise me on an RF thermostat question...

I have just bought a Horstmann HRFS1 to replace Drayton WR1 +RF1 units.

I have a WB Greenstar 28i Junior boiler.

Inside the current WR1 receiver unit I have...

Live from switch and Live from boiler connected together.

Neutral from switch and neutral from boiler connected together


Then I have...

A black wire from the boiler, currently in the "common" connector on the Drayton WR1 unit

A yellow wire from the boiler currently in the "call for heat" connector on the Drayton WR1 Unit.

Can you help me translate the current connections from the WR1 onto the connectors in the Horstmann receiver unit? My confusion is that their diagram shows no "common" option in the standard 230V diagram and no "call for heat" option in their "volt free" diagram, so I'm just unsure exactly where to connect these two wires.

I have the following connectors in the HRFS1 receiver...

NC
COM
NO
Neutral
Live

There is a red wire connected between the COM and Live connectors.

Any help greatly appreciated.

 

[Draytoc]

Here is a link to the instructions on the Horstmann...

http://www.horstmann.co.uk/download...ermoStats/RF Programmable Room Thermostat.pdf