Panasonic CS-E18SD3UAW service manual - Page 48

Operation and Control

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12. Operation and Control 12.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating 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. 12.1.1 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 60.8ºF ~ 86ºF Auto Operation Mode Shifting Setting Temperature Limit Checking (Min: 60.8ºF; Max: 86ºF) Outdoor Air Temperature Shifting Powerful Mode Shifting Fan Speed Shifting Start-Up Shifting Setting Temperature Limit Checking (Min: 60.8ºF; Max: 86ºF) Internal Setting Temperature 12.1.2 Cooling Operation 12.1.2.1 Thermostat control  Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -3.6°F continue for 3 minutes.  Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point. 12.1.3 Soft Dry Operation 12.1.3.1 Thermostat control  Compressor is OFF when Intake Air Temperature - Internal Setting Temperate < -3.6°F continue for 3 minutes.  Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF point. 48

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48
12. Operation and Control
12.1 Basic Function
Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time
passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating
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.
12.1.1
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
60.8ºF ~ 86ºF
Auto Operation Mode Shifting
Outdoor Air Temperature Shifting
Powerful Mode Shifting
Fan Speed Shifting
Start-Up Shifting
Internal Setting Temperature
Setting Temperature Limit Checking
(Min: 60.8ºF; Max: 86ºF)
Setting Temperature Limit Checking
(Min: 60.8ºF; Max: 86ºF)
12.1.2
Cooling Operation
12.1.2.1
Thermostat control
Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -3.6°F continue for 3 minutes.
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature >
Compressor OFF point.
12.1.3
Soft Dry Operation
12.1.3.1
Thermostat control
Compressor is OFF when Intake Air Temperature - Internal Setting Temperate < -3.6°F continue for 3 minutes.
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature >
Compressor OFF point.