(Not defrosted for 10 minutes)
Outdoor fan : OFF
Compressor : OFF
EEV : 480pulse
4-way valve : OFF
Compressor: ON
(Frequency : 70rps)
EEV : 370pulse
(Outdoor HEX temp.> 2
°
C)
Heating operation start : Compressor ON
Defrost Indicator:
[Operation lamp]
7 sec ON / 2 sec OFF
Outdoor heat exchanger temperature: Over 10
°
C
or
Compressor ON time: Over 15 minutes
Defrost end
01-23
3. Defrost Flow Chart
The defrosting shall proceed by the integrating operation time
and outdoor heat exchanger emperature as follows.
Compressor
integrating operation:
Over 17 minutes to
below 62 minutes
Compressor
integrating operation:
Over 240 minutes
Compressor
integrating operation:
Over 62 minutes to
below 240 minutes
Outdoor HEX temp.:
Below - 9
°
C
Outdoor HEX temp.:
Below - 5
°
C
Outdoor HEX temp.:
Below - 3
°
C
In case of 1st defrost
In case of 2nd
and later defrost
Outdoor temp -
Outdoor HEX temp.
: Above 5
deg
C
Compressor
integrating operation:
Over 35 minutes to
below 215 minutes
Outdoor HEX temp.:
Below - 6
°
C
Compressor
integrating operation:
Over 215 minutes to
below 240 minutes
Outdoor HEX temp.:
Below - 5
°
C
Compressor
integrating operation:
Over 240 minutes
Outdoor HEX temp.:
Below - 3
°
C
Compressor OFF:
Outside air temp.< 2
°
C
(More than 210 min.)
Compressor
OFF count :
40 times
(Less than 10min.)
In case of Integrating defrost
for intermittent operation
Defrost start
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AMP Air Conditioning
www.ampair.co.uk | [email protected]