01-16
3. Defrost Flow Chart
1 Outdoor fan : OFF
2 Compressor speed : 0 rps
3 EEV : 480pulse
4 4-way valve : OFF
5 Compressor speed : 90rps
The defrosting shall proceed by the integrating operation time, outdoor temperature
and outdoor heat exchanger temperature as follows.
(Not defrosted for 10 minutes)
Heating operation start : Compressor ON
Outdoor heat exchanger temperature:
Over +16°C
or
Compressor ON time: Maximum 15 minutes
Defrost end
Compressor
integrating
operation:
Over 22 min.
Outdoor
heat exchanger
temperature:
Below - 9°C
Outdoor
heat exchanger
temperature:
Below - 5°C
Compressor integrating
operation:
Over 40 min.
2nd and later defrost
Integrating defrost
(Constant monitoring)
Defrost Indicator:
[Operation lamp]
6 sec ON / 2 sec OFF
Defrost start
Compressor
OFF count :
40 times
(Less than 10min.)
1st defrost
Compressor
integrating
operation:
Over 62 min.
Compressor
integrating
operation:
Over 240 min.
Outdoor
heat exchanger
temperature:
Below - 3°C
Compressor
integrating
operation:
Over 215 min.
Outdoor
heat exchanger
temperature:
Below - 5°C
Outdoor heat exchanger temp.
< -17°C
.outside temp. > -10°C
.outside temp. < -10°C
1 Outdoor heat exchanger temp.
< -20°C
2 Outdoor heat exchanger temp.
< Outside air temp -7°C.
3 Tn-Tn10< -5°C (and Tn< -6°C)
4 Tn-Tnb< -2°C (and Tn< -6°C)
=
