High Pressure Binary Switch
Typically located on or near the receiver drier, when the pressure in the high side
of the system reaches 385 psi, the switch will open, disrupting the voltage to the
compressor clutch. The clutch will disengage, causing the compressor to stop
working preventing serious damage from occurring to the system. The HP
Binary switch will then close once the pressure has reduced.
As well, when the pressure on the low side reaches 28 psi, the switch will open,
disrupting voltage to the compressor clutch. The clutch will disengage, causing
the compressor to stop working.
Electronic Thermostat
Located inside the evaporator cover, the thermostat serves a temperature control
and prevents the evaporator from freezing.
The thermostat is designed to open the circuit to the H.P. Binary switch when the
evaporator coil reaches 35 – 37 ºF.
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