drayton rb2 flowshare relay

marck · Dec 29, 2022

I have replaced a rb2 flowshare relay but found some of the wiring has been bypassed and I'm not sure how to wire it back into the relay as I cannot find a wiring diagram does anybody have any experience with these relays on central heating system

[ElectriciansForums.net] drayton rb2 flowshare relay

brianmoooore · Dec 29, 2022

Fig 12.41 on page 250 of this: [PDF] Domestic Central Heating Wiring Systems and Controls - Free Download - 1MB - https://dlscrib.com/queue/domestic-central-heating-wiring-systems-and-controls_59c87fc208bbc51717687302_pdf?queue_id=59c87fca08bbc57718687301

marck · Dec 30, 2022

brianmoooore said:
Fig 12.41 on page 250 of this: [PDF] Domestic Central Heating Wiring Systems and Controls - Free Download - 1MB - [PDF] Domestic Central Heating Wiring Systems and Controls - Free Download - 1MB - https://dlscrib.com/queue/domestic-central-heating-wiring-systems-and-controls_59c87fc208bbc51717687302_pdf?queue_id=59c87fca08bbc57718687301

thanks for the link that's quite useful. what I'm not understanding I the A A. BB connections as someone has messed about with the wiring i want to make sure it correct as I work commercial electrics I mainly install supply for these circuits I don't often install the pumps and other parts for heating systems

brianmoooore said:
thanks for your help.

brianmoooore · Dec 30, 2022

Has it solved or helped with your problem?

Mark68 · Jan 16, 2023

not really as I can't find a diagram for this particular relay but any help appreciated before I replaced this relay I wasn't getting any power to room stat but I have a live supply now but I need diagram to sort it out

Mark68 · Jan 16, 2023

on the connections for the relay how do I enterperate the AA BB connections

brianmoooore · Jan 19, 2023

Mark68 said:
on the connections for the relay how do I enterperate the AA BB connections

No markings n the relay or its base?
I should point out that I've never knowingly set eyes on a RB2 relay in my life, but the link I posted shows one connected in a typical circuit.

davesparks · Jan 19, 2023

It looks like there is a diagram of the terminal arrangement of the relay moulded in to the top of the case, this will tell you which terminal on the relay does what.
Then it should be easy enough to trace the tracks on the PCB to see which of the field wiring terminals they are connected to.