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SiEN12-710A
Control Specification
Function and Control
51
2.10 Defrost Control
Outline
Heat Pump Only
Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor
heat exchanger temperature must be more than its fixed value when finishing.
Detail
Conditions for Starting Defrost
The starting conditions must be made with the outdoor air temperature and heat exchanger
temperature. Under the conditions that the system is in heating operation, 6 minutes after the
compressor is started and more than 30 minutes of accumulated fine pass since the start of the
operation or ending the defrosting.
Conditions for Canceling Defrost
The judgment must be made with heat exchanger temperature. (40 class : 4°C~12°C, 50 class :
4°C~15°C)
Frequency
Compressor
Four way valve
Fan
ON
OFF
ON
OFF
ON
OFF
0Hz
5sec.
450pls
350pls
450pls
Initial opening
0pls
140pls
Initial opening
PI control
5sec.
30sec.
60sec.
530 sec.
120sec.
120sec.
40 class: 350pls
50 class: 300pls
(R7163)
Operating room
electronic expansion
valve opening
Operation stopped room
electronic expansion
valve opening
40 class: 160pls
50 class: 200pls
Summary of Contents for 2MKS40FV1B
Page 11: ...Introduction SiEN12 710A x ...
Page 12: ...SiEN12 710A List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 2 Heat Pump 4 ...
Page 17: ...Heat Pump SiEN12 710A 6 List of Functions ...
Page 25: ...Heat Pump SiEN12 710A 14 Specifications ...
Page 111: ...Instruction SiEN12 710A 100 Operation Manual ...
Page 199: ...Wiring Diagrams SiEN12 710A 188 Appendix ...
Page 203: ...SiEN12 710A iv Index ...