Wirsbo PPI 1050 Multi Zone control centre

[phillgrace]

I have been repairing a heating system that comprises of a 2 Wirsbo PPI 1050 multti zone control centre , 1 for ground floor and 1 for 1st floor, for the under floor heating. Although I have brought it back in to operation the 2 control centres appear to be operating slightly differently. The control centre's have 2 leds in the display. Lefthand Green and right hand red. Does anyone in the forum know what these lights represent or know where I can get a manual for the centre.

Phill

 

[phillgrace]

Thank you all that may have tried to help. Luckily I think I have found my answer and all is well with both systems. Please see below.

RED - Ambient temperature is below temperature setting
GREEN - Ambient temperature is above temperature setting


Quote from instruction manual:-


As long as the temperature measured is within the selected neutral zone, none of the relays will be active.
If the temperature falls below the lower zone limit, relay 1 will be activated and a red LED indicates heating function.
If the temperature rises above the upper zone limit, relay 2 will be activated and a green LED indicates cooling function.