Thermo King TriPac, Руководство оператора

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Unit Description
16
Refrigerant
The TriPac uses R-134a refrigerant.
Protection Devices
The
High System Pressure Cutout Switch
is a normally
closed system pressure sensitive switch. On models
manufactured prior to 9/06, it is part of the binary pressure
switch, mounted on the receiver-drier, typically near the TriPac
condenser. On models manufactured during 9/06 and after, a
High Pressure Cutout Switch (HPCO) is located at the
receiver/drier.
If the discharge pressure rises above the switch’s opening
pressure, the switch opens the circuit to stop the unit and
generates an AcS Alarm Code. When the discharge pressure
falls below the switch’s closing pressure, the switch closes to
allow compressor operation.
The
Low System Pressure Cutout Switch
is a normally
closed pressure sensitive switch.
On models manufactured prior to 9/06, it is part of the binary
pressure switch, mounted on the receiver-drier, typically near
the TriPac condenser. On models manufactured during 9/06
and after, a Low Pressure Cutout Switch (LPCO) is installed at
the evaporator coil.
If the pressure falls below the switch’s opening pressure, the
switch opens the circuit to stop the compressor. When the
pressure rises above the switch’s closing pressure, the switch
closes to allow compressor operation.