Worcester 25Si Installation And Servicing Instructions page 17

Fig.29. Facia connections cover
Fixing screw
Fig.31. Programmer connection
Facia
Programmer
connector
Programmer
connections
Clip
Programmer
Fig.33. Facia connections
3
1 2
11
1. Earth screw
2. Mains connection (L N)
3. Fuse F1
4. Mains voltage room thermostat/external control-mains
voltage ST8
5. Fuse F2
Facia
Controls
connections
cover
Facia bottom panel
(clip-on)
Control
board
Pressure gauge
4 5
10
Fig.30. Programmer cover
Programmer
connections
Fig 32 - Mains Voltage External Controls Connections
NOTE: Only double insulated controls not requiring an earth can be used
Ns Ls L
230 V Room Thermostat Connections
230 V room thermostat and
Programmer Connections
6
8
9
6. Controls 24V - ST13
7. Mains harness ST16
8. Fan ST1
9. Pump ST5
10. Earth tag
11. Cable clamps (threaded)
17
Ns Ls L
R
ST8
Remove Link
Motor
230 V Programmer Connections
Ns Ls L
R
ST8
Motor
7
Cover panel
Facia
R
ST8
Remove Link
Series
connection
to be made
safe