INVERTER WALL MOUNTED TYPE ROOM AIR ... - Aircon.Ru

4.9 Outline of heating operation(1) Operation of major functional components in heating modeCompressorIndoor fan motorOutdoor fan motor4-way valveHeatingThermostat ON Thermostat OFF Defrost FailureON OFF OFFOFFON ON(HOT KEEP) OFFONOFF(few minutes ON)OFFON ON OFFOFFOFFOFF(3 minutes ON)(2) Details of control at each operation mode (pattern)(a) Fuzzy operationDeviation between the room temperature setting correction temperature and the suction air temperature is calculated inaccordance with the fuzzy rule, and used for control of the air capacity and the inverter speed.(b)Fan speedAutoHIMEDLOModelSRK20ZG-SSRK25ZG-S SRK35ZG-S SRK50ZG-S30~100rps 30~102rps 15~122rps30~100rps 30~102rps 15~122rps30~70rps 30~72rps 30~84rps 15~84rps30~44rps 30~54rps 30~62rps 15~66rpsWhen the defrosting, protection device, etc. is actuated, operation is performed in the corresponding mode.Hot keep operationIf the hot keep operation is selected during the heating operation, the indoor blower is controlled based on the temperature ofthe indoor unit heat exchanger (detected with Th2, indoor unit heat exchanger sensor) to prevent blowing of cool wind.(3) Defrosting operation(a) Starting conditions (Defrosting operation can be started only when all of the following conditions are met.)1 After start of heating operationWhen it elapsed 45 minutes (35, 50 type : 35 minutes). (Accumulated compressor operation time)2 After end of defrosting operationWhen it elapsed 45 minutes(35, 50 type : 35 minutes). (Accumulated compressor operation time)3 Outdoor unit heat exchanger sensor (Th4) temperatureWhen the temperature has been below –5ºC for 3 minutes continuously.4 The difference between the outdoor air sensor temperature and the outdoor unit heat exchanger sensor temperature¡ The outdoor air temperature ≥_ -17°C : 7°C (35type : 5°C, 50type : 4°C) on higher¡ The outdoor air temperature < -17°C : -5°C or higher5 During continuous compressor operationIn addition, when the speed command from the indoor controller of the indoor unit during heating operation has counted0 rps 10 times or more and all conditions of 1, 2, 3 and 5 above and the outdoor air temperature is 3°C or less aresatisfied (note that when the temperature for Th4 is -5°C or less: 62 rps or more, -4°C or less: less than 62 rps), defrostoperation is started.(b) Ending conditions (Operation returns to the heating cycle when either one of the following is met.)1 Outdoor heat exchanger sensor (Th4) temperature: 13ºC or higher2 Continued operation time of defrosting → For more than 10 min.- 17 -