5-24 SM-18001-rev.1EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING5.4.2.2 Description of Function Selection Item(1) Cancellation of Heating Temperature Compensation due to Uneven Heat Load (b1)This function is utilized when the setting temperature of the wired controller and the inlet airtemperature of the indoor unit are required to be equal.This is useful when the inlet air thermistor is removed to the outside of the indoor unit.NOTE:While “Control by External Input” is valid, the filter sign displays “No Indication” if the external input isdisconnected.(5) Fixing of Operation Mode (b5)This function is utilized when the operation mode is not required to be changed.When this function is valid, the set operation mode cannot be changed by the wired controller.(6) Fixing of Setting Temperature (b6)This function is utilized when setting temperature is not required to be changed.When this function is valid, the setting temperature cannot be changed by the wired controller.Setting Temperature for Room Temperature Control during HeatingSetting Condition Actual Control Temperature00 (Standard) Wired Controller Setting Temperature (Indicated Value) +7oF (+4oC)01 Wired Controller Setting Temperature (Indicated Value)02 Wired Controller Setting Temperature (Indicated Value) +3oF (+2oC)03 Wired Controller Setting Temperature (Indicated Value) +5oF (+3oC)04 Wired Controller Setting Temperature (Indicated Value) +2oF (+1oC)NOTE:The maximum setting temperature after correction is as follows.Inverter Multi Unit: 94 oF (34oC)(2) Circulator Function during Heating Thermo-OFF (b2)In the standard factory setting, the air flow volume changes to “LOW” automatically to prevent a colddraft during heating Thermo-OFF.Therefore, the air flow might not be distributed uniformly in the room depending on the installationlocation of the air conditioner or room structure. In such case, it is recommended to utilize thisfunction.The function keeps the air flow volume during Thermo-OFF at the same level as during Thermo-ON.The air flow in the room is kept at the same level as during Thermo-ON so the room temperature isuniformly-distributed. If using the air conditioner with auto swing function, the auto swing function isactivated even during heating Thermo-OFF.NOTE:The temperature sensibility and demands for air flow distribution differ depending on the person. It istherefore recommended to discuss these matters with customers thoroughly and then install the unitaccordingly.(3) Not Prepared (b3)(4) Change of Filter Cleaning Time (b4)The period before filter sign indication is set according to indoor unit model before shipment.The filter sign (“FLTR” on wired controller) is indicated according to the filter cleaning time (FactorySetting). However, this filter cleaning time can be changed depending on the condition of the filter asshown in the table below.Period forFilter Sign IndicationApprox.1,200 hrs.Approx.100 hrs.Approx.1,200 hrs.Approx.2,500 hrs. No IndicationLiquid Crystal Displayon Wired Controller00(Factory Setting) 01 02 03 04