SiBE12-908 Control SpecificationFunction and Control 403.2 Automatic switching for HUMID HEAT operation roomOutline When the indoor units in both 2 rooms are set to HUMID HEAT operation, priority is given to theindoor unit starting operation first basically.However, priority is given to the indoor unit starting operation subsequently under certainconditions.Detail 1. When the indoor units in both 2 rooms are set to HUMID HEAT operation, priority is given tothe indoor unit starting operation first (Unit 1), and the indoor unit goes into humidifyingoperation while the indoor unit starting operation subsequently (Unit 2) goes into standbymode.2. When the humidity of the Unit 1 reaches a target level, the unit which performs HUMIDHEAT operation switches from Unit 1 to Unit 2 automatically.3. When the temperature decreases in the room of the Unit 1, the Unit 2 goes into standbymode, then, the Unit 1 starts HUMID HEAT operation again.Carry out priority room setting to prevent the room of HUMID HEAT operation from switchingautomatically.How to carry out priority room settingCut the jumper of the outdoor unit PCB.Cut the JP9 → Room-A is set as the priority room.Cut the JP10 → Room-B is set as the priority room.(R9428)JP9 JP10
