Fujitsu AS* G09LECB Service Instruction

WALL MOUNTEDtype Models Indoor unit Outdoor unit AS* G09LECB AS* G12LECB AO* G09LECAN AO* G12LECAN INVERTER SERVICE INSTRUCTION R410A ...

1. COOLING OPERATION................................................................................................ 3. DRY OPERATION......................................................................................................... 2. HEATING OPERATION................................................................................................. 5. INDOOR FAN CONTROL................................ ...

1. COOLING OPERATION 1-1 COOLING CAPACITY CONTROL A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation speed of the compressor. * If the room temperature is 2°C higher than a set temperature, the compressor operation speed will attain to ma ...

2-1 HEATING CAPACITY CONTROL A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation speed of the compressor. * If the room temperature is lower by 3°C than a set temperature, the compressor operation speed will attain to maximum performance. * If the room temperature is higher 2.5° ...

3-1 INDOOR UNIT CONTROL The compressor rotation frequency shall change according to the temperature, set temperature, and room temperature variation which the room temperature sensor of the indoor unit body has detected as shown in the Table 3. However, the compressor frequency after the start-up is 56rps for 80seconds. Ts+0.5°C Ts -1.5°C Ts -0.5°C Ts+1.5°C ( Table 3 : Compressor frequency ) ( Fig.2 : Compressor control based on room t ...

01-04 (Fig. 3 : Operation flow chart in Auto changeover) START Room temp. Room temp. >Ts+2°C ? COOLING OPERATION HEATING OPERATION YES YES NO NO NO NO YES YES TS : Setting temperature

The airflow can be switched in 5 steps such as Auto, Quiet, Low, Med, Hi, while the indoor fan only runs. When Fan mode is set at [Auto], it operates on [Me] Fan Speed. 01-05 1. FAN SPEED 2. FAN OPERATION ( Table 5 : Indoor fan speed ) AS*G09/12LECB Operation mode Air flow mode Speed (rpm) 1440 1370 1200 980 Cooling/ Fan Hi Hi 700 600 480 1440 Me+ Me Me Heating Lo Lo 1200 920 Quiet Quiet 680 * Soft Quiet 600 Dry S-Lo X zone: 680 J zon ...

temperature rises Indoor heat exchanger temperature drops The maximum value of the indoor fan speed is set as shown in Fig. 6, based on the detected temperature by the indoor heat exchanger sensor on heating mode. (Fig.6 : Cool air prevention control) 01-06 6. COOL AIR PREVENTION CONTROL (Heating mode) 47°C 40°C 37°C Cool air prevention 30°C S-Lo 40°C 28°C 32°C 35°C Lower of "Hi" ...

01-07 ( Table8 : Outdoor fan speed ) * The outdoor fan speed mentioned above depends on the compressor frequency. (When the compressor frequency increases, the outdoor fan speed also changes to the higher speed. When the compressor frequency decreases, the outdoor fan speed also changes to the lower speed.) * After the defrost control is operated on the heating mode, the fan speed keeps at the higher speed as table9 without relating ...

1. VERTICAL LOUVER CONTROL 2. SWING OPERATION Each time the button is pressed, the air direction range will change as follow: Cooling / Dry mode / Heating mode / Fan mode Use the air direction adjustments within the ranges shown above. The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected. Cooling / Dry mode Horizontal flow Heating mode Downward flow When the temperature of the air ...

1. OPERATION SPEED RANGE The operation speed of the compressor is different based on the operation mode as shown in the Table 10. Cooling Dry Heating Minimum Maximum Minimum Maximum Minimum Maximum AO*G09LECAN AO*G12LECAN 18rps 64rps 18rps 119rps 18rps 96rps 18rps 23rps 25rps 30rps 33rps 130rps (Table 10 : Compressor operation speed range) 2. OPERATION SPEED CONTROL AT START UP The compressor speed soon after the start-up is controlle ...

1. OPEARTION FREQUENCY RANGE The Table 12 shows the available timer setting based on the product model. OFF timer : When the clock reaches the set time, the air conditioner will be turned off. Operation mode Stop mode Set time of timer ON timer : When the clock reaches the set time, the air conditioner will be turned on. Operation mode Stop mode Set time of timer (Table 12 : Timer setting) 01-10 The program timer allows the OFF ...

If the sleep is set, the room temperature is monitored and the operation is stopped automatically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time ON. Set temperature rises ( Ts : Set temperature ) Stop of operation Set temperature lowers ( Ts : Set temperature ) Ts Stop of operation In the cooling operation ...

The Table13 shows the available timer setting based on the product model. ON TIMER / OFF TIMER WEEKLY TIMER TEMPERATURE SET BACK TIMER AS* G09/ 12LECB ( Table13 : Timer Setting ) 1. ON TIMER / OFF TIMER Same to 9-1 1.ON TIMER / OFF TIMER and shown in those. 2. WEEKLY TIMER This timer function can set operation times of the each day of the week. All days can be set together,the weekly timer can be used to repeat th ...

The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the following values. The compressor frequency, the temperatures detected by the discharge temperature sensor, the indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature sensor. The pulse range of the electronic expansion valve control is between 6 ...

17. COMPRESSOR PREHEATING 01-14 16. FORCED COOLING OPERATION Forced cooling operation is started when pressing MANUAL AUTO button for 10 seconds or more. During the forced cooling operation, it operates regardless of room temperature sensor. Operation LED and timer LED blink during the forced cooling operation. They blink for 1 second ON and 1 second OFF on both operation LED and timer LED (same as ...

The 10°C HEAT operation functions by pressing 10°C HEAT button on the remote controller. The 10°C HEAT operation is almost the same operation as below settings. Mode Heating Setting temperature 10°C Fan mode Auto ( Table16 ) 19. ECONOMY OPERATION The ECONOMY operation functions by pressing ECONOMY button on the remote controller. The ECONOMY operation is ...

01-16 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts when the outdoor heat exchanger temperature sensor (Tn) detects the temperature lower than the values shown in Table 18. 2. CONDITION OF THE DEFROST OPERATION COMPLETION Release Condition Outdoor heat exchanger temperature sensor value is higher than +16°C or Compressor operation time has passed 15 minutes. (Table 18 : Condition of starting Def ...

Compressor speed : 0 rps EEV : 480pulse 4-way valve : OFF Compressor speed : 90rps 3. Defrost Flow Chart The defrosting shall proceed by the integrating operation time, outdoor temperature and outdoor heat exchanger temperature as follows. (Not defrosted for 10 minutes) Heating operation start : Compressor ON Outdoor HEX temp.: Over 16°C or Compressor ON time: Maximum 15 minutes Defrost end Tn < - 17°C Tn < Outside temp.- 7°C or ...