Control Specification SiBE041134EB46 Functions and Control3.10 Defrost ControlOutline Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoorheat exchanger temperature must be more than a certain value to finish defrosting.Detail Conditions for Starting Defrost The starting conditions are determined with the outdoor temperature and the outdoor heatexchanger temperature. The system is in heating operation. The compressor operates for 6 minutes. More than A minutes of accumulated time have passed since the start of the operation, orending the previous defrosting.Conditions for Canceling DefrostThe judgment is made with the outdoor heat exchanger temperature. (B°C)+: The same value continues.RXS20/25K2V1BRXS20/25K3V1BRXS20/25L2V1BARXS25L2V1BRXS20/25L3V1BARXS25L3V1BA (minutes) 28 28B (°C) 4 ~ 18 4 ~ 18C (Hz) 68 64 +D (Hz) 86 64 +E (seconds) 50 50F (seconds) 60 60G (seconds) 600 600H (seconds) 50 60J (pulse) 450 450K (pulse) 350 ~ 400 380L (pulse) 450 450FrequencyCompressorFour way valveFanONOFFONOFFONOFF0 Hz 0 HzC HzD Hz5 sec.PI control5 sec.H sec.(R22034)E sec.F sec.G sec.K pulse zoneElectronicexpansion valveopening NormalcontrolJ pulsezoneL pulsezoneStartingcontrol
