ACV HM 60 N Installation, Operating And Servicing Instructions page 5

DESCRIPTION
Safety features of the HeatMaster 70 N and 100 N
Thermal reset high
limit thermostat
Manual reset high
limit thermostat
Low water
pressure switch
Control thermostat
Primary safety valve
Safety features of the HeatMaster 150 Jumbo
Primary safety valve
Thermal reset high
limit thermostat
Manual reset high
limit thermostat
Low water
pressure switch
Control thermostat
4
Control panel HeatMaster 70 N and HeatMaster 100 N
Combined temperature
and pressure gauge
Burner
lockout
indicator
Primary circuit low
water pressure
indicator
Control
thermostat
High limit cutoff
indicator
Control panel HeatMaster 150 Jumbo
Combined temperature
and pressure gauge
Relay base
Time clock
GRASSLIN GRASSLIN
Fuse
Control thermostat
Servicing socket
(230 V ˜ 50 Hz)
Manual reset high
limit thermostat
Summer / Winter switch
Time clock
I
O
ON / OFF
switch
Mains power
electrical connection
(multi-pin plug)
Primary circuit low
water pressure indicator
bar
I
O
ON / OFF switch
Manual reset high
limit thermostat
Thermal reset high
limit thermostat