18015. Indoor Unit Operation Control15.1 Operation Mode Priority Control• Operation modes available for remote control selection are: AUTO, COOL, DRY, HEAT and FAN• Types of operation mode which cannot be performed simultaneously at different indoor unit will be in standbycondition.Unit B Operation ModeRoom BRoom A Cool Dry Heat FanCool CoolCoolDryCoolStandbyCoolFanCoolDry CoolDryDryDryStandbyDryFanDryHeat StandbyHeatStandbyHeatHeatHeatStandbyHeatUnit AOperation ModeFan CoolFanDryFanHeatStandbyFanFan15.2 Cooling Operation15.2.1 Thermostat Control• When room temperature reaches thermostat OFF set point or below for 5 minutes, indoor unit will send thermoOFF signal to outdoor unit.• Thermostat OFF point (ΔD) is determined using Indoor Intake Temperature - Remote Control Setting Temperature.Default thermostat off point is shown in table below:Low Static Hide-away(MA1-series)Model Wall Mounted(KA1-series)60 x 60Cassette(YA1-series)95 x 95Cassette(UA1-series)Slim Hide-away(NA1-series) 4.5 / 5.6kW 6.3 / 7.1 / 9.0 kWIndoor fanspeed ≥ Me -2.0°C -2.0°C -1.5°C -2.0°C -1.0°C -2.0°CThermostat OFFPoint (ΔD)COOL Mode Indoor fanspeed < Me -2.0°C -2.5°C -2.0°C -2.0°C -1.0°C -2.0°CThermostatOFFThermostat OFF pointThermostat OFF point + 1.0CoolingIntake air temperature – remotecontroller temperature setting• Thermostat OFF continues for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature >Thermostat OFF point + 1.0°C• The Thermostat OFF point can be altering using Remote Control Local setting mode.i. Press SET (small button at wireless remote) or Press TEST RUN button for 5 sec (at wired remote).ii. Press TEMP UP/DOWN buttons to scroll mode no. (04).iii. Press Timer UP/DOWN buttons to scroll fan tap no. (000 ~ 004)iv. Press TIMER SET button to confirm and transmit to indoor.Local Setting Mode Setting Cool & Soft Dry ThermoOff Set Point Shift*000 No Shift001 Shift 1°C lower002 Shift 2°C lower003 Shift 1°C higher04004 Shift 2°C higher15.2.2 Expansion Valve Control• During Thermostat OFF signal received, the indoor unit expansion valve is closed fully.
