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WD52/0/1997
5.4
FUNCTIONAL FLOW WIRING DIAGRAM
230V 50Hz 10A
PL
230V 50Hz 3A
SL
Lockout (Red)
Indicator
Run (Green)
Indicator
Installation & Servicing Instructions
Chapter 5 : Fault Finding
EMC Filter
Boiler
Thermostat
5
RAM CONTROL BOX
Gas Low
Pressure Switch
Gas Valve
The Keston 130 Condensing Boiler
ON/OFF
Switch
Flow Overheat Thermostat
Thermal Fuse Link
Flow High Limit Thermostat
Low Water Pressure Switch
Flue Overheat Thermostat
2
HT
1
4
6
10
8
Relay
ON/OFF Switch
EMC Filter
Air
Press
Switch
Blower
Pump L
Pump N
N
Page : 30
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