Daikin RXL25G2V1B, Руководство по обслуживанию

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SiENBE04-925_A Control Specification
Function and Control 43
3.10 Defrost Control
Outline Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor
heat exchanger temperature must be more than a certain value to finish.
Detail
Conditions for Starting Defrost
„
The starting conditions is determined with the outdoor temperature and the outdoor heat
exchanger temperature.
„
The system is in heating operation.
„
The compressor operates for 6 minutes.
„
More than minutes of accumulated time pass since the start of the operation, or ending
the previous defrosting.
Conditions for Canceling Defrost
The judgment is made with outdoor heat exchanger temperature. (4°C ~ 18°C)
20 class 25 class 35 class
(minutes) 28 30 44
(Hz) 76 48 55
(Hz) 86 70 90
(seconds) 50 60 60
(seconds) 60 120 120
(seconds) 600 650 460
(seconds) 60 30 30
(pulse) 450 450 450
(pulse) 350 350 450
(pulse) 450 450 450
Frequency
Compressor
Four way valve
Fan
ON
OFF
ON
OFF
ON
OFF
0Hz
Hz
Hz
5 sec.
pulse
pulse pulse
Initial opening
PI control
5 sec.
sec.
(R12211)
Electronic expansion
valve opening
sec.
sec.
sec.
SIENBE04-925_A_FRONT.pdf 57 24/02/2011 13:53:52