SANYO 24K12W (01) PDF Document

The specifications for the SANYO 24K12W Indoor Unit are as follows:

The operating temperature ranges for the indoor and outdoor air intake temperatures are:

The remote control unit features the following controls and indicators:

A. OPERATION ON/OFF BUTTON: Used to turn the air conditioner ON/OFF.

B. COOLING OPERATION LAMP: Lights when the “COOL” mode is selected.

C. TIMER LAMP: Lights when the system is operating on the timer.

D. SAVING MODE LAMP: Lights when the NIGHT SETBACK or ENERGY SAVER mode is selected.

E. ROOM TEMPERATURE INDICATOR LAMPS: Indicates the approximate room temperature at the location of the remote control unit.

F. TEMPERATURE SCALE: The numbers constitute the temperature scale for cooling (°F).

G. COOL/FAN SELECTOR: Used to select “COOL” mode or “FAN(only)” mode without cooling.

H. OPERATION SELECTOR: This has four options:

– TIMER ON: Used to start the system at the set time.

– TIMER OFF: Used to stop the system at the set time.

– NIGHT SETBACK / ENERGY SAVER: Used for programmed energy saving operation.

– MANUAL: Used for conventional temperature control operation using the thermostat.

I. FAN SPEED SELECTOR:

– AUTO: Fan speeds are automatically decided by the microcomputer.

– HIGH / MED / LOW: You can manually select the desired fan speed.

J. THERMOSTAT KNOB: Regulates the room temperature as desired by adjusting this knob.

K. TIMER SET KNOB: Used to set the time at which you wish the air conditioner to go on or off. Each number on the scale shows the setting hour.

L. SENSOR: Detects any change in the room temperature.

To start the air conditioner and cool the room:

1. Set the “G” knob (COOL/FAN SELECTOR) to COOL.

2. Set the “H” knob (OPERATION SELECTOR) to MANUAL.

3. Set the “I” knob (FAN SPEED SELECTOR) to AUTO.

4. Set the “J” knob (THERMOSTAT KNOB) to the desired temperature.

5. Press the “A” OPERATION ON/OFF button.

The “B” and “E” lamps will light, then after a few minutes the air conditioner will start cooling operation.

The Manual mode is used for normal cooling operation.

STEP 1: Set the COOL/FAN SELECTOR knob to COOL.

STEP 2: Set the OPERATION SELECTOR knob to MANUAL.

STEP 3: Set the FAN SPEED as desired.

STEP 4: Press the OPERATION ON/OFF button.

To stop the air conditioner, press the OPERATION ON/OFF button again.

Note: This appliance has a built-in 3-minute time delay circuit to ensure reliable operation. If the operation button is pressed, the compressor will start running after three minutes. In the event of power failure, the unit will stop. When the power is applied, the unit will re-start automatically after 3 minutes.

To use the Energy Saver Mode:

STEP 1: Set the OPERATION SELECTOR knob to ENERGY SAVER before turning the system on.

STEP 2: Press the OPERATION button. The ENERGY SAVER and COOL lamps will light.

By selecting this mode then pressing the OPERATION ON/OFF button, the air conditioner will perform cooling operation until the temperature in the room reaches the set value, then the thermostat will cause the unit to pause. After about 30 minutes, the air conditioner will automatically raise the set temperature 2°F to save energy without sacrificing comfort.

To cancel the Energy Saver mode, move the selector to MANUAL.

To use the Night Setback Mode:

STEP 1: Set the “H” OPERATION SELECTOR knob to NIGHT SETBACK before turning the system on.

STEP 2: Press the “A” OPERATION ON/OFF button. The NIGHT SETBACK and COOL lamp will light.

By selecting this mode, the air conditioner will perform cooling operation until the temperature in the room reaches the set value, then the thermostat will cause the unit to pause. After about 30 minutes, the air conditioner will automatically raise the set temperature 2°F. When the room temperature reaches the new set value, the thermostat will cause the unit to pause. After about 30 minutes the temperature is again raised by 2°F. This function is convenient when leaving the air conditioner on all night or soft cooling is needed.

To cancel the Night Setback mode, move the selector to MANUAL.

If you want to circulate air without any temperature control, follow these steps:

STEP 1: Set the COOL/FAN selector knob to FAN.

STEP 2: Press the OPERATION ON/OFF button.

The air conditioner will operate as a circulation fan without changing the room temperature. In this case, only the “E” ROOM TEMPERATURE INDICATOR LAMP will light.

The system stops after the set hours have elapsed.

STEP 1: Set the TIMER SET knob to the desired number of hours. (When the timer is set to 6, for instance, the system stops after six hours.)

STEP 2: Set the OPERATION SELECTOR knob to TIMER OFF.

STEP 3: Press the OPERATION ON/OFF button. The TIMER lamp will light.

The system starts after the set hours have elapsed.

STEP 1: Set the TIMER SET knob to the desired number of hours. (When the timer is set to 6, for instance, the system starts after six hours.)

STEP 2: Set the OPERATION SELECTOR knob to TIMER ON.

STEP 3: Press the OPERATION ON/OFF button. The TIMER lamp will light.

Horizontal: The horizontal air flow can be adjusted by moving the vertical vane to the left or right.

Vertical: Hold both ends of the flap and move the flap up and down to adjust the vertical air flow. Be sure to set the flap within zone “A” for COOLING.

NOTE: If the flap is set within zone “B”, condensation may form near the air outlet grille and drip onto the floor.

The air filter behind the air intake grille should be checked and cleaned at least once every two weeks.

How to remove the filter:

1. Place the flap on the air outlet grille in the bottom-most position.

2. Grasp the air filter by the tab at the bottom, and pull downward.

Cleaning:

Use a vacuum cleaner to remove light dust. If there is sticky dust on the filter, wash the filter in lukewarm, soapy water, rinse it in clean water, and dry it. When replacing the filter, check that the FRONT mark is facing you.

Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or wipe them with a clean soft cloth. If these parts are stained, use a clean cloth moistened with a mild liquid detergent. When cleaning the grille, be careful so as not to force the vanes out of place.

CAUTION:

1. Do not pour water on the unit to clean it. This will damage the internal components and cause an electric shock hazard.

2. Never use solvents, or harsh chemicals. Do not wipe the plastic casing using very hot water.

AVOID:

• areas where leakage of flammable gas may be expected.

• places where large amounts of oil mist exist.

• direct sunlight.

• nearby heat sources that may affect performance of the unit.

• locations where remote control will be splashed with water or affected by dampness or humidity.

• installing remote control unit behind curtains or furniture that obstruct air circulation.

DO:

• select an appropriate position from which every corner of the room can be uniformly cooled. (High on the wall is best.)

• select a location that will hold the weight of the unit.

• select a location where piping and drain pipe have shortest run to the outside.

• allow room for operation and maintenance as well as unrestricted air flow around the unit.

• install unit within the maximum height up or down of outdoor unit and within a total piping length stipulated.

• allow room for mounting control unit about 1 m (4 ft.) off the floor, in an area that is not in direct sunlight or in the flow of cool air from the unit.

If the circuit breaker trips or fuse blows when set to ON:

1. Check the interunit power line (between indoor and outdoor units). Is the wiring correct? If NO, execute rewiring. If YES, check for ground faults.

2. Check insulation resistance of power supply cords. If low, there is a possibility of a ground fault.

3. Check insulation resistance of the outdoor unit. If resistance value is low (less than 1 MΩ), disconnect the interunit power cables and check insulation resistance between terminal (2) and ground and between terminal (1) and ground in the electrical component box of the outdoor unit.

4. If resistance is still low, there may be a defect of insulation in the outdoor unit. Check insulation of compressor motor, outdoor fan motor, and crank case heater. Replace parts if defects are found.

5. If the outdoor unit insulation is normal but the problem persists, check the insulation of the indoor unit fan motor and transformer.

1. Check power supply. Is power being supplied to the wall receptacle? If NO, check if the circuit breaker is tripped or if there is a power failure.

2. Check the operation lamp. Is the lamp lit? If NO, check the fuse on the P.C.B. Ass’y for continuity.

3. If the fuse is blown, check the power transformer and indoor fan motor. Replace if defective. If the fuse blows again, replace the fuse.

4. If the fuse is not blown but the P.C.B. Ass’y is defective, replace the P.C.B. Ass’y.

1. Confirm installation position of the remote control unit. Does cool air from the air conditioner reach the position directly? If YES, change the installation position of the remote control unit.

2. Are wide and narrow tubes between indoor unit and outdoor unit insulated separately? If NO, insulate the wide tube and narrow tube separately and then execute taping.

3. Measure temperatures of suction and discharge air of the air conditioner. If the temperature difference is small, there is a possibility of gas shortage. Charge refrigerant gas (R22).

4. Check for clogging of the air filter. If clogged, clean the filter.

5. If fan speed is set to LOW, set the fan speed to either HIGH or MEDIUM.

6. Reevaluate cooling load estimate. If the performance of the air conditioner is normal, reduce the cooling load or replace the unit with higher cooling capacity.

1. Is the TEST RUN selector switch (at the back side) of the remote control unit set to RUN? If NO, set the switch to RUN.

2. Is the set temperature suitable? If NO, set the temperature to a higher value or set the selector lever to AUTO.

3. Is the remote control unit installed at a place where it can detect room temperature properly? If NO, change the installation position of the remote control unit.

4. Does the compressor motor stop when the operation push-button is depressed to OFF? If NO, check the remote control unit and replace if defective. If the remote is normal, check the power relay or P.C.B. Ass’y for defects and replace if necessary.