Appendix - Buderus 500 - 28/C Servicing Manual

8

Appendix

8 Appendix
box 287 Wiring diagram
Buderus controller,
RTH converter or
ON/OFF-controller
hot-water tank sensor
pin 1
pin 17
pin 1
pin 17
pin 4
pin 1
pin 6
pin1
We reserve the right to make technical modifications
76
1
2
1)
3
4
5
24 VAC
6
earth
7
3-way valve
Mains
230 VAC,
50 Hz
Mains switch
Servicing manual Gas condensing boiler Buderus 500-24/S, 500-24/C and 500-28/C • Issued 02/2006
1) only for Buderus 500-24/S:
remove the link at the connection of the hot water tank sensor
2) only for Buderus 500-24/C and 500-28/C
24 VAC
0 VAC
switch contact
120 VAC
Buderus Ltd. • http://www.buderus-domestic.co.uk
safety sensor
flow sensor
flue gas thermostat
ionisation electrode
glow ignitor