Control Specification Si12-30892 Function and Control3. Control Specification3.1 Mode HierarchyOutline There are two modes; the mode selected in user’s place (normal air conditioning mode) andforced operation mode for installation and providing service.Detail Air Conditioner’s Control Mode1. For heat pump modelThere are following modes; stop, cooling (includes drying), heating (include defrosting)2. For cooling only modelThere are following models; stop and cooling (including drying).Note: Unless specified otherwise, an indoor dry operation command must be regarded as coolingoperation. An indoor fan operation command cannot be made in a multiple indoor unit. (A forcedfan command to the indoor unit from the outdoor unit must be made during forced operation.)Determine Operating ModeJudge the operating mode command set by each room in accordance with the instructingprocedure, and determine the operating mode of the system.The following procedure will be taken as the modes conflict with each other.*1.The system will follow the mode determined first. (First-push, first-set)*2.For the rooms set with different mode, select stand-by mode. (Operation lamp flashes)Air conditioner control modeForced operating modeForced coolingForced heatingCheck incorrect wiringNormal operating modeCoolingHeatingDefrostingStop mode (except for cooling/heating modes by indoor command)Preheat operationDuring C (capacitor) is dischargingStop(R1373)Air conditioner control modeForced operating modeForced coolingCheck incorrect wiringNormal operating modeCoolingStop mode (except for cooling modes by indoor command)Preheat operationDuring C (capacitor) is dischargingStop(R1374)
