16
GENERAL INfORMATION
1.10
Cooling circuit
The cooling circuit is of the heat pump type with a refrigerant gas
reversal cycle. The source fluid utilised is the outdoor air, while
the utility-side fluid is the air inside the rooms.
During the wintertime, the heat pump extracts the thermal en-
ergy from the outdoor air and delivers it to the room air, thereby
heating it. During the summertime the cycle is reversed, and the
thermal energy is extracted from the room air, which is cooled,
and is delivered to the outdoor air.
MODEL 250
A
Outdoor unit
B
Indoor unit
1
Compressor
2
Discharge temperature sensor
3
Cycle reversal valve
4
Electric fan
5
Heat exchanger
6
External air probe
7
Defrost temperature sensor
8
Electronic expansion valve
9
Two-way shut-off valve
10
Connection pipes
11
Three-way shut-off valve
12
Intake sensor
13
Intake separator
A
B
1
2
3
6
7
12
13
11
10
9
8
4
5
Summary of Contents for AARIA MULTI 250 P
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