Panasonic CS-E9RKUAW E12RKUA Service Manual - Page 49

Operation Control

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13. Operation Control 13.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air temperature. 13.1.1 Internal Setting Temperature Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes. These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit. Remote Control Setting Temperature 60.8°F - 86°F Auto Operation Mode Shifting Indoor Air Temperature Shifting Outdoor Air Temperature Shifting Powerful Mode Shifting Setting Temperature Limit Checking (Min: 60.8°F; Max 91.4°F) Internal Setting Temperature 13.1.2 Cooling Operation 13.1.2.1 Thermostat control  Compressor is OFF when intake Air Temperature - Internal Setting Temperature < 2.7°F.  Compressor is ON after waiting for 3 minutes, if the Intake Temperature - Internal Setting Temperature > Compressor OFF point. 13.1.3 Soft Dry Operation 13.1.3.1 Thermostat control  Compressor is OFF when Intake Temperature - Internal Setting Temperature < -3.6°F.  Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point. 13.1.4 Heating Operation 13.1.4.1 Thermostat control  Compressor is OFF when Intake Temperature - Internal Setting Temperature > 3.6°F.  Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < Compressor OFF point 49

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49
13. Operation Control
13.1
Basic Function
Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time
passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation
mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and
performing temperature shifting. The compressor at outdoor unit is operating following the frequency instructed by
the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air
temperature.
13.1.1
Internal Setting Temperature
Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting
processes. These shifting processes are depending on the air conditioner settings and the operation environment.
The final shifted value will be used as internal setting temperature and it is updated continuously whenever the
electrical power is supplied to the unit.
13.1.2
Cooling Operation
13.1.2.1
Thermostat control
Compressor is OFF when intake Air Temperature - Internal Setting Temperature < 2.7°F.
Compressor is ON after waiting for 3 minutes, if the Intake Temperature - Internal Setting Temperature >
Compressor OFF point.
13.1.3
Soft Dry Operation
13.1.3.1
Thermostat control
Compressor is OFF when Intake Temperature - Internal Setting Temperature < -3.6°F.
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature >
Compressor OFF point.
13.1.4
Heating Operation
13.1.4.1
Thermostat control
Compressor is OFF when Intake Temperature - Internal Setting Temperature > 3.6°F.
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature <
Compressor OFF point
Remote Control Setting Temperature
60.8°F - 86°F
Setting Temperature Limit Checking
(Min: 60.8°F; Max 91.4°F)
Auto Operation Mode Shifting
Indoor Air Temperature Shifting
Outdoor Air Temperature Shifting
Powerful Mode Shifting
Internal Setting Temperature