UK VRF GEN 24 - Flipbook - Page 13
VRF SYSTEMS
VRF SYSTEMS INDEX
Variable Evaporation and Condensation Temperature.
Our ‘smart logic’ system checks the temperature every 30
seconds, automatically adjusting the refrigerant temperature
according to actual demand and outdoor conditions. This
ensures better energy performance at all times.
Temperature varies from 16 °C to 3 °C.
Similarly, the condensation temperature is also variable
and is adjusted to the room thermal load, within a range of
33 - 55 °C.
Refrigerant evaporation temperature (°C).
Refrigerant condensation temperature (°C).
18
50
16
45
It adjusts to the room thermal load
14
12
Comfort
Saving
40
Saving
10
Comfort
8
35
6
4
30
2
0
25
0%
25%
50%
Thermal load
75%
Variable ET
100%
0%
25%
50%
Thermal load
Constant ET
75%
100%
Variable CT
Constant CT
Example of cooling mode (similarly applicable to heating mode).
Evaporation
temperature
Room
thermal load
Evaporation
temperature
Room
thermal load
Evaporation
temperature
Room
thermal load
Indoor environment with a low thermal load
Higher thermal load
Maximum thermal load
The evaporation temperature is kept at a high
temperature
The evaporation temperature lowers, adjusting
itself to the thermal load
The evaporation temperature lowers further
Maximum energy saving
Maximum comfort
Maximum performance
Technical focus on variable
temperatures
Evaporation temperature
Condensation temperature
16 °C
Optimal working range for the
compressor
48 °C
13 °C
11 °C
Control of the discharge temperature
This special function is available in all of Panasonic VRF systems’ indoor units
to guarantee maximum comfort for the end user.
For example, in cooling mode, if the temperature of the discharged air was
below 10 °C, the user may feel discomfort, just as he would do in heating mode
if the temperature was far too high.
With the Panasonic control of the discharge air temperature, this can be
adjusted within a cooling range of 7 – 22 °C.
42 °C
Fan
8°C
6 °C
34 °C
40,5 °C
3 °C
0%
50%
100%
Thermal load
0%
Discharge
Intake air
temperature
sensor
33 °C
50%
100%
Thermal load
Indoor heat
exchanger
Intake
Refrigerant
temperature
sensors
Discharge air
temperature
sensor
Discharge air
temperature setting
range from 7 to 22 °C
Benefits:
· The air will never be too cold or too warm
· Available in cooling and in heating
· Higher comfort
· Energy saving
· It prevents the formation of condensation within ducts and vents, improving
levels of hygiene
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