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Top cover
Automatic air vent
Domestic cold water inlet
Heating circuit filling valve
with removable hose and
non-return valve
Primary expansion vessel
Primary shunt pump
Casing front panel
Primary circuit
Burner chamber plate
Safety features of the HeatMaster 60 N
Thermal reset high
limit thermostat
Manual reset high
limit thermostat
Low water
pressure switch
Primary safety valve
Control thermostat
Features of HeatMaster 70 N / 100 N
Combined temperature
and pressure gauge
Burner
lockout
indicator
Primary circuit low
water pressure
indicator
High limit cutoff
DESCRIPTION
Combustion chamber
Control panel HeatMaster 60 N
Manual reset high
Time clock
Control
thermostat
indicator
Summer / Winter switch
Flue reduction collar
Central heating
flow pipe
Domestic hot
water outlet
Flue pipes and
turbulators
Tank-in-Tank
heat exchanger
Insulation
Burner
Heating return
limit thermostat
I
O
ON / OFF
switch
3
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