Carrier TRANSICOLD PrimeLINE 69NT40-571-001, Operation And Service Manual, Page: 25 / 186

3–3 T-372
3.1.4 Compressor Section
The compressor section (see Figure 3.3 ) includes the compressor, digital unloader valve (DUV), high pressure
switch, discharge pressure transducer (DPT), evaporator pressure transducer (EPT) and the suction pressure
transducer (SPT). The supply temperature sensor (STS) and supply recorder sensor (SRS) are located to the left
of the compressor.
Figure 3.3 Compressor Section
1) Compressor
2) Compressor Discharge Temperature Sensor
(CPDS) location
3) Discharge Connection
4) Suction Connection location
5) Compressor Terminal Box
6) Oil Drain location
7) Economizer Connection
8) Discharge Pressure Transducer (DPT)
9) Digital Unloader Valve (DUV)
10) Suction Pressure Transducer (SPT)
11) Evaporator Pressure Transducer (EPT)
12) High Pressure Switch (HPS)
13) Discharge Service Valve
14) Suction Service Valve
15) Supply Temperature Sensor (STS), Supply
Recorder Sensor (SRS)
16) Warning Label
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3.1.5 Air-Cooled Condenser Section
The air-cooled condenser section (see Figure 3.4 ) consists of the condenser fan, condenser coil, receiver, liquid
line service valve, filter drier, fusible plug, economizer, economizer expansion valve (EEV), economizer solenoid
valve (ESV), and sight glass / moisture indicator. The condenser fan pulls air from around the coil and discharges it
horizontally through the condenser fan grille.
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