8. IU settings
IU settings cover the following items. These settings can be done only when the unit is stopped.
(1) High ceiling: Set the fan speed for High ceiling operation. ➝
⑪
(2) Filter sign: Set the time to display the filter sign. ➝
⑫
(3) External input 1: Set the control at the time when the signal is input to the external input 1 (CNT) of IU. ➝
⑬
(4) External input 1 signal: Set the type of signal to input to the external input 1 (CNT) of IU. ➝
⑭
(5) External input 2: Set the control at the time when the signal is input to the external input 2 (CNTA) of the IU
equipped with the external input 2. ➝
⑮
(6) External input 2 signal: Set the type of signal to input to the external input 2 (CNTA) of the IU. ➝
⑯
(7) Heating thermo-OFF temp adjustment: Adjust the temperature for judging to make thermostat ON or OFF
during heating operation. ➝
⑰
(8) Return air sensor adjustment: Adjust the temperature detected with the return air temp sensor. ➝
⑱
(9) Fan control in cooling thermo-OFF: Set the fan control during cooling thermo-OFF. ➝
⑲
(10) Fan control in heating thermo-OFF: Set the fan control during heating thermo-OFF. ➝
⑳
(11) Anti-frost temp: Select the Anti-frost control temperature. ➝
(12) Anti-frost control: Set the fan control during the Anti-frost control. ➝
(13) Drain pump operation: Set the operation mode to operate the drain pump. ➝
(14) Residual fan operation in cooling: Select the residual fan operation time after stopping and thermo-OFF in
cooling operation. ➝
(15) Residual fan operation in heating: Select the residual fan operation time period after stopping and thermo-OFF
in heating operation.➝
(16) Intermittent fan operation in heating: Select the fan control after the residual fan operation following stopping
and thermo-OFF in heating operation.➝
(17) Fan circulator operation: Set this when operating the fan as a circulator. ➝
(18) Control pressure adjust: Adjust the control pressure when connecting the outdoor air conditioning unit to the
Multi (KX) System. ➝
(19) Auto operation mode: Set the control method for the auto operation mode. ➝
(20) Thermo rule setting: Set the switching methods and conditions for the thermo rule. ➝
(21) Auto fan speed control; Set the switching range of the fan tap at the auto fan speed setting. ➝
(22) IU overload alarm: Overload alarm signal is transmitted when the room temperature differs to some extent
from the setting temperature at 30 minutes after the start of operation. ➝
①
Tap the
Menu
button on the TOP screen.
①
TOP screen
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