Hamworthy F175H Installation, Commissioning And Operating Instructions page 31

Combustion
Fan
Pump
Relay
Air Pressure
Switch
LMU Control
Clip in Module
Vfc / 0~10v
Fuse
IEC Mains
Outlet Socket
230v Mains
Supply
Figure 8.1.6 - General Overview of Boiler Controls
HAMWORTHY HEATING LTD
HT Spark
Generator
Return
On/Off switch
Temperature
Sensor
Flow Temperature
Sensor
Pump
25
FLEET H series
Overheat
Thermostat
Gas Valve
Low Gas
Pressure Switch
Safety Relief
Valve in flow
pipe
Inlet gas
pressure test
point
Water Flow
Switch
Flue Gas
Temperature
Sensor - in
flue elbow
500001216/D