Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 208

2. Processes and functions 2-1. Room Temperature Control The unit adjusts room temperature by turning the outdoor unit's compressor ON and OFF. This process is controlled by the thermostat located in the remote control unit. The figures on this and the next pages show how each part of the system performs when the room temperature changes and the thermostat activates the compressor to start (thermo ON) or stop (thermo OFF). Fig. 1 shows about the cooling cycle, and Fig. 2 shows about the heating cycle. (A) Cooling BODY SENSOR T+2 °F SET TEMP. T °F T-2 °F THERMO. OFF (THERMO. ON) MORE THAN 5 MINUTES 3 MINUTES 5 MINUTES (THERMO. OFF) ROOM TEMP. THERMO. ON MORE THAN 3 MINUTES MORE THAN 5 MINUTES COMPRESSOR ON OFF ON OFF ON 2 1 OUTDOOR FAN ON OFF ON OFF ON (H OR M) INDOOR FAN SET SPEED 1. See Outdoor unit fan control in 2-4. Control Functions. 1133_THS_I Fig. 1 Chart Summary and Explanations Once the compressor starts, it keeps running for 5 minutes. Once the compressor stops, it will not start running again for 3 minutes. If you change the operation mode (HEAT, COOL or FAN) during the heating cycle, the control circuit stops the compressor for 3 minutes. For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off, the compressor is not controlled by the room sensor. Thermo ON: When room temperature rises 2 F (4˚F when set on body sensor) above the set temperature T˚, (T˚+2˚F or T˚+4˚F when set on body sensor): Compressor ON Thermo OFF: When the room temperature is -2˚F below the set temperature T˚: Compressor OFF 2-2