10
201703
Figure 2-2.2: piping diagram
Legend
1
Compressor
8
Accumulator
2.1
Discharge pipe temperature sensor
9
Stop valve (liquid side)
2.2
Outdoor ambient temperature sensor
10
Stop valve (gas side)
2.3
Air side heat exchanger refrigerant outlet temperature sensor
11
Pressure sensor
2.4
Suction pipe temperature sensor
12
Separator
3
4-way valve
13.1
Low pressure switch
4
Air side heat exchanger
13.2
High pressure switch
5
Distributor
14
Solenoid valve
6
Filter
15
Capillary
7
Electronic expansion valve
Key components:
6.
Accumulator:
Stores liquid refrigerant and oil to protect compressor from liquid hammering.
7.
Electronic expansion valve (EXV):
Controls refrigerant flow and reduces refrigerant pressure.
8.
Four-way valve:
Controls refrigerant flow direction. Closed in cooling mode and open in heating mode. When closed, the air side heat
exchanger functions as a condenser and water side heat exchanger functions as an evaporator; when open, the air
side heat exchanger functions as an evaporator and water side heat exchanger function as a condenser.
9.
High and low pressure switches:
Regulate refrigerant system pressure. When refrigerant system pressure rises above the upper limit or falls below the
lower limit, the high or low pressure switches turn off, stopping the compressor.
10.
Separator:
Separates liquid refrigerant from gas refrigerant to protect compressor from liquid hammering.
11.
Solenoid valve:
Protects the compressor. If compressor discharge temperature rises above 100°C, 6. Solenoid valve opens and sprays a
small amount of liquid refrigerant to cool the compressor. Solenoid valve closes again once the discharge temperature
has fallen below 90°C.
Models 10 to 16kW
MUNDOCLIMA AEROTHERM V17 - BIBLOC
