Cylinder charging off, can't get controls working properly...

[mcinnes01]

Hi,

I have just got an ecotec 637, vrc470, vr81/4 and vr61/2.

I also have a fabdec excelsior 255l indirect unvented store.

I finally have all my controls wired up after a few chats with valiant technical, however I can't for the life of me get the timed programs working for HW or CH.

I have 2 CH zone (upstairs and downstairs) with the vrc470 downstairs and the vr81 upstairs. I only seem to manually be able to get CH downstairs if I set a manual temperature and the HW I can't seem to get working at all without manually opening the valve.

If I press HW boost on the 470 and put it in comfort mode I get "cylinder charging off" flashes up on the boiler.

Does anyone know how to get it working, I have read through all the manuals both "for the expert" and "for the idiot" and am still none the wiser?

Cheers,

Andy

 

[SafeGasInstall]

up load diagram of your wiring

 

[Reg Man]

Does all your wiring originate through the boiler terminals? Seen it in the past where the time clock has been wired off the fused spur and then to the boiler, it don't work. So wire from fused spur to the boiler then out to the timer and other controls.

 

[mcinnes01]

Hi,

The wiring following out from the boiler is as follows:

ebus -> VR61/4 -> VRC470 -> VR81/2

VR10 to orange and black hanging loose in boiler (as instructed by valliant technical).

The 3 zone vales go on to the 3 valve terminals in the VR61/4

Power to both the boiler and VR61.

The valves for the HW and CH zones are attached to the VR61 as recommended again by valliant.

I have not as yet attached the weather compensator as I need to run this cable when I do the upstairs rewire which is only chased out at the moment. This will got to the x41 terminal in the boiler however.

hth

Andy

 

[Chalked]

Have you used the stat connections or the 240v plug.