ESIE12-06 Field Setting from Outdoor Unit PCBField Setting 1433. Field Setting from Outdoor Unit PCB3.1 Location of DIP Switch and BS ButtonVarious settings are available by using the DIP switches and the BS buttons on the PCB.1. Factory settings: "OFF" and "HEAT"Note: BS button (Pump down / Forced defrosting)Pressing the BS button forcibly operates the air conditioner in the cooling mode.1. To conduct a pump-down operation (sending refrigerant to outdoor unit), press the BSbutton to forcibly operate the equipment in the cooling mode, then operate the unit for about1 minute to stabilize the system. After stabilizing system, close the liquid pipe stop valve onthe outdoor unit, and after the pressure decreases and the low pressure sensor activates,close the gas pipe stop valve.2. Forced defrostTo activate the defrost operation during the heating operation, press the BS button. This willactivate the forced defrost operation (cooling operation).When the defrost cancel conditions are met, the equipment automatically switches off thedefrost operation.X205AH1P H2P H3P H4P H5P H6P H7PCOOLONHEATOFFON1 221BS2BS1BS3BS4Dip SwitchA2PMODEMODE SET RETURN PUMPDOWNTEST HWL L.N.O.P DEMANDDisplay LampBS ButtonDisplay Function or Operating ProcedureSymbol NameDisplayLampH1P MODE During "Setting mode 1," the lamp isOFF (h). During "Monitor mode," the lampblinks (l).H2P TEST During test operation in "Settingmode 1," the lamp is ON (k). During "Monitor mode," the lamp isOFF (h).H3P HWL When an error occurs during "Settingmode 1," the lamp turns ON (k).H4P L.N.O.P During "Setting mode 1," low noiselevel is displayed.During "Monitor mode," variouscombinations of the lamp indicatethe following conditions:• Indication of oil return operation• Indication of outdoor unit class• Indication of error code (the latestand up to 2 cycles before)• Indication of causes of stepping-downH5PH6PDEMAND During "Setting mode 1," demandlevel is displayed.H7PBSButtonBS1 MODE Used to change "Setting mode".BS2 SET Used to change "Setting item" and "Setting condition".BS3 RETURN Used to decide "Setting item" and "Setting condition".BS4 PUMP DOWN Used for pump down operation, forced oil return operation and forceddefrost operation.DipSwitchDS1-1 ONEMERGENCYSwitch from "OFF" to "ON" for emergency operation (forced operation).OFF(1)DS1-2 COOL Maintain "HEAT" in case of heating in emergency operation, and switch to"COOL" in case of cooling in emergency operation.HEAT(1)
