62
Fig. 39
Example: 3-stage heat pump
1
Secondary circuit return temperature sensor (inlet)
2
High pressure sensor
3
Primary circuit return temperature sensor (outlet)
4
Refrigerant sight glass
5
Secondary circuit flow temperature sensor (outlet)
6
Filter dryer
7
Condenser
8
Evaporator
9
Primary circuit flow temperature sensor (inlet)
qP
Safety high pressure switch, stage 3
Electronic expansion valve (EEV)
qW
Suction gas temperature sensor
qE
Low pressure sensor
qR
Safety high pressure switch, stage 2
qT
Piston compressor 3
qZ
Safety high pressure switch, stage 1
qU
Piston compressor 2
qI
Piston compressor 1
qO
Oil sight glass
wP
Hot gas temperature sensor
wQ
Oil pressure sensor (pressure transmitter)
wW
Oil sump heater
Repairs
Overview of internal components
5855865
Maintenance
Содержание BW 352.B027
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