Field Setting SiUS30-604104 Test OperationExternal ON/OFF inputThis input is used for “ON / OFF operation” and “Protection device input” from the outside. Theinput is performed from the T1-T1 terminal of the operation terminal block (X1A) in the electriccomponent box.Setting TableFan Speed Changeover When Thermostat is OFFBy setting to “Set Fan Speed”, you can switch the fan speed to the set fan speed when the heatingthermostat is OFF.∗ Since there is concern about draft if using “fan speed up when thermostat is OFF”, you shouldtake the setup location into consideration.Setting TableAuto Restart after Power Failure ResetFor the air conditioners with no setting for the function (same as factory setting), the units will be leftin the stop condition when the power supply is reset automatically after power failure reset or themain power supply is turned on again after once turned off. However, for the air conditioners withthe setting, the units may start automatically after power failure reset or the main power supplyturned on again (return to the same operation condition as that of before power failure).For the above reasons, when the unit is set enabling to utilize “Auto restart function after powerfailure reset”, utmost care should be paid for the occurrence of the following situation.F2 T1 T2Forced stopInput AMode No. SettingSwitch No. SettingPosition No. Operation by input of the signal A12 (22) 101 ON: Forced stop (prohibition of using the remotecontroller)OFF: Permission of using the remote controller02 OFF → ON: Permission of operationON → OFF: Stop03 ON: OperationOFF: The system stops, then the applicable unitindicates “A0”. The other indoor units indicate “U9”.Mode No. First Code No. Second Code No. Setting12 (22) 3 01 LL Fan Speed02 Set Fan SpeedCaution 1. The air conditioner starts operation suddenly after power failure reset or themain power supply turned on again. Consequently, the user might besurprised (with question for the reason why).2. In the service work, for example, turning off the main power switch during theunit is in operation, and turning on the switch again after the work iscompleted start the unit operation (the fan rotates).
