1 | GENERAL INFORMATION
10
1.8
Operating limits
Operating mode
Temperature
Min
Max
Cooling
Indoor air (W.B.)
°C
21
35
Outdoor air (D.B.)
°C
-20
43
Heating
Indoor air (D.B.)
°C
10
27
Outdoor air (W.B.)
°C
-20
24
The values are based on the following condition:
- pipe length: 5 m
- difference in height: 0 m
- air flow: maximum
1.9
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 energy 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.
A
Outdoor unit
5
Heat exchanger
11
Connection pipes
B
Indoor unit
6
External air probe
12
Three-way shut-off valve
1
Compressor
7
Defrost temperature sensor
13
Intake separator
2
Discharge temperature sensor
8
Capillary tube
14
Intake sensor (excluding 9000-1)
3
Cycle reversal valve
9
Electronic expansion valve
(24000-1 only)
4
Electric fan
10
Two-way shut-off valve
