FUNCTIONS
Function Remarks
Air conditioning
control function
Operation mode setting Cooling, Heating, Fan
Fan speed setting High, Med, Low, Auto
Temperature setting
Stage 1 (Cooling), Stage 1 (Heating)
Stage 2 (Cooling), Stage 2 (Heating)
Maintenance
function
Indoor unit error monitoring
Communication error detection
Control target error indication
Convertor error monitoring
Others
Two-stage cooling and heating
thermostat operation
Delay o
LIMITATIONS
z
Automatic prohibition of remote controller operation
Thermostat operates the indoor units according to the setting temperature by bulit-in
temperature sensor. Since setting temperature of the remote contoller may be dierent
from the setteing temperature of the thermostat, remote contoller operation prohibition is
automatically enabled.
z
Air direction adjustment by thermostat
z
No fan mode available in heat pump system.
Do not connect between fan signal terminals (G, G1, G2, or G3) on the convertor and the
thermostat by using wire.
z
Error code will be displayed on the built-in LED display.
For indoor units without error code indicator, conrm the LED display inside the thermostat
convertor.
For details of indoor unit error, refer to ERROR STATUS OUTPUT in Chapter 8. EXTERNAL
INPUT AND OUTPUT.
z
For following items, use remote controllers.
● Filter sign cancellation
● Indoor unit function settings
● Test run
After all settings are completed, disconnect the remote controller, and connect the thermostat
convertor.
- (05 - 147) -
CONTROL
SYSTEM
CONTROL
SYSTEM
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