Does apollo 30s need 240v mains switching?

[pegasus829]

Hello,
I have had to replace my central heating control as it had failed, I have replaced it with an electronic Siemens RWB7 timeswitch. I cannot get the boiler to fire up when the program kicks in. There is only one control circuit as HW and CH are not seperate. The only thing I can think of is that the boiler may need 240v mains switching as this is an option on the controller. Does anyone know if this is the case? I do not want to make the link and cause damage to the system. I cannot find a manual for the boiler online to confirm and when I moved in the manual was not left behind.
Many thanks in advance for your time taken to help me out!
Pegasus

 

[pegasus829]

any ideas?

 

[D_Hailsham]

The Apollo 30s needs a permanent supply so the pump overrun can work.

You can find an online manual for all Apollo Boilers at:

http://85.189.44.185/Baxi/

There are many Apollo boilers so you need to check the GC No on the boiler plate to get the right one!

 

[gas4you]

As far as I know these boilers need 230V.

 

[namsag]

What did you take out and did you use existing backplate without altering wiring.

The rwb7 usually needs a live link connected to terminal 2 when used with a normal boiler such as appollo

 

[pegasus829]

I took out an invensys EMP2 (noisy piece of gear), I was pretty sure it needed the 240v link but having no experience needed to ask people in the know as it were. Searched everywhere and couldn't find an answer or a schematic. Will give it a try tomorrow, thanks for the advice!
Used the new backplate even though it was the same as the original, if I'm going to fit a new control may as well change the backplate I suppose, prevents corroded terminals.