Worcester 25Si Installation And Servicing Instructions page 10
Wall mounted combination boilers for central heating and mains fed domestic hot water
Hide thumbs
Also See for 25Si:
- Installation, commissioning and servicing instructions (76 pages) ,
- Instruction manual (65 pages) ,
- User instructions (21 pages)
Table of Contents
Advertisement
Fig. 11. Wiring diagram.
Overheat cut-off
device
CH sensor
(front of heat
exchanger)
Spark
electrode
Flow
switch
Spark
transformer
DHW sensor
Control Board
ST12
ST8
ST15
Link
Mains in
Fan
Gas valve
Reg
Main
Main
ST16
ST1
2
pink
2 yellow
2 green
2 red
2 orange
10
Flame sense
electrode
Pump
2 blue
2 brown
2 violet
white
Hide quick links:
Advertisement
Table of Contents
