This document is the Owner's Manual for a Toshiba Air Conditioner (Split Type) with R32 refrigerant, designed for commercial use. It covers models RAV-GM301KRTP-A, RAV-GM401KRTP-A, RAV-GM561KRTP-A, and RAV-GM801KRTP-A, which are high-wall indoor units.
Function Description
The Toshiba air conditioner provides cooling, heating, and fan-only operations, with additional features like automatic operation, dry mode, high power, quiet operation, preset operation, comfort sleep, and various timer functions. It can be controlled via a wireless remote controller, and in some configurations, a wired remote controller can also be used, especially for group control of multiple indoor units.
Operation Modes
- Cooling/Heating/Fan Only Operation: Standard modes for adjusting room temperature. In fan-only mode, temperature setting is not indicated.
- Dry Operation: Reduces humidity in the room. The fan speed is automatically set to AUTO.
- Automatic Operation (Auto Changeover): This function is available only when combined with a heat recovery model outdoor unit. The operating mode (cooling or heating) is selected automatically based on room temperature. If used with other outdoor unit models, "A" (Auto) will appear on the remote controller, but the automatic operation will be disabled.
- High Power Operation: Boosts cooling or heating capacity. For cooling, it operates at 1°C lower than the setting temperature, and fan speed increases. For heating, it operates at 2°C higher than the setting temperature, and fan speed increases. This mode is not available in DRY or FAN ONLY operation, or during group control.
- Quiet Operation: Reduces operation noise by automatically setting the fan speed to the lowest level.
- Preset Operation: Allows users to memorize and recall preferred operation settings (mode, temperature, fan speed, airflow direction).
- Comfort Sleep Operation: An OFF timer operation that automatically adjusts room temperature and fan speed for comfortable sleep. For cooling, the temperature increases by 1 degree/hour (max 2 degrees increase). For heating, the temperature decreases. This mode is not available in DRY or FAN ONLY operation, and only the OFF timer function is activated during group control.
Timer Functions
- ON Timer and OFF Timer: Allows scheduling the air conditioner to start or stop at a desired time. Settings can be adjusted in 10-minute or 1-hour steps.
- Combined Timer (OFF Timer → ON Timer): Stops the unit after a set period and restarts it later.
- Combined Timer (ON Timer → OFF Timer): Starts the unit at a set time and stops it later.
- Every Day Combined Timer: Activates a combined timer (ON and OFF) daily.
Airflow Adjustment
- Adjusting Airflow Direction: The air conditioner automatically adjusts the vertical airflow direction in AUTO or A mode. Users can manually adjust the vertical airflow using the FIX button and the horizontal airflow using a lever.
- Swing Operation: The horizontal louver automatically moves up and down.
Important Technical Specifications
- Refrigerant Type: R32 (flammable refrigerant).
- Power Supply: The manual emphasizes the importance of proper electrical work by a qualified installer to prevent electric shocks or leaks.
- Safety Devices: Includes a 3-minute protection function to prevent immediate restarts after power interruptions and protective devices that stop operation if the unit is overloaded.
Usage Features
Wireless Remote Controller
The wireless remote controller is the primary interface for operating the indoor unit.
- Buttons:
- START/STOP: Powers the unit on/off.
- MODE: Selects operation mode (Cool, Heat, Dry, Fan Only, Auto).
- TEMP. (▲/▼): Adjusts temperature.
- SWING: Activates/deactivates horizontal louver swing.
- FAN: Adjusts fan speed (AUTO, LOW, LOW+, MED, MED+, HIGH).
- FIX: Adjusts vertical airflow direction.
- QUIET: Activates quiet operation.
- Hi POWER: Activates high power operation.
- TIMER (ON/OFF): Sets ON/OFF timers.
- CLR: Cancels timer settings.
- COMFORT SLEEP: Activates comfort sleep mode.
- SET: Confirms timer settings.
- CHECK: Displays check code log.
- CLOCK: Sets the clock.
- FILTER: Resets the filter cleaning reminder.
- RESET (on indoor unit): For temporary operation if the remote controller is lost or batteries are exhausted.
- Display Indications: Shows current operation mode, temperature setting, fan speed, timer settings, clock time, Hi POWER status, PRESET status, COMFORT SLEEP status, QUIET status, and Swing status.
- Battery Replacement: Uses two R03 (AAA) batteries, typically lasting about one year. Replace when the indoor unit doesn't beep upon signal reception or when the remote controller fails to operate the unit.
Wired Remote Controller (Optional)
Can control up to 8 indoor units and provides more detailed information and control, especially for group control.
- Display Section: Shows operation mode, error display, setting display, test run display, timer display, timer mode display, filter display, louver position display, swing display, fan speed display, set temperature display, power saving mode display, unit number display, central control display, pre-heat display, no function display, self-clean operation display, service display, and operation ready display.
- Group Control: Allows multiple indoor units to operate as a single system. One unit acts as the "Header" unit, receiving commands from the remote controller and transmitting them to "Follower" units. Specific limitations apply, such as Hi POWER and COMFORT SLEEP operations, and the TIMER lamp only lighting on the Header unit.
Auto Restart Operation
Allows the air conditioner to resume its previous operating conditions after a power shutdown without manual intervention. This feature needs to be enabled manually.
Maintenance Features
- Cleaning the Indoor Unit and Remote Controller:
- Use a dry cloth for general cleaning.
- A damp cloth with cold water can be used for very dirty indoor units.
- Never use damp cloths on the remote controller.
- Avoid chemically-treated dusters, benzine, thinner, polishing powder, or similar solvents as they can damage surfaces.
- Cleaning Air Filters:
- Clean every 2 weeks to maintain performance.
- A "FILTER" icon on the remote controller indicates when cleaning is due.
- To clean, open the air inlet grille, remove the filters, and use a vacuum cleaner or wash with water. Dry in the shade.
- After cleaning, press the FILTER button on the remote controller to reset the reminder.
- Cleaning Air Inlet Grille:
- Remove the grille by holding its sides and opening upwards, then moving the center arm to the left.
- Wash with water using a soft sponge or towel. Avoid metallic scrubbing brushes or hard brushes.
- For very dirty grilles, use a neutral detergent and rinse with water.
- Maintenance for Extended Non-Use (1 month or more):
- Operate in FAN ONLY mode for half a day to dry the unit's interior.
- Stop the unit and turn off the main power switch.
- Remove batteries from the remote controller.
- Periodic Check (by dealer): Recommended for long-term use to prevent malfunctions from battery leakage, deterioration of electric parts, or dust accumulation.
- Maintenance List: Provides a detailed list of parts (Heat exchanger, Fan motor, Filter, Fan, Air intake/discharge grilles, Drain pan, Ornamental panel/louvers, Exterior) and their recommended visual/auditory checks and maintenance actions (e.g., washing, fixing, replacing, applying repair coating).
Safety Precautions
The manual includes extensive safety warnings and cautions:
- Installation: Must be performed by a qualified installer or service person. Improper installation can lead to fire, electric shock, injury, water leakage, noise, and vibration.
- Refrigerant: Uses R32, a flammable refrigerant. Only the specified refrigerant should be used. Accumulation of highly concentrated refrigerant in small rooms can cause oxygen deficiency.
- Electrical Safety: Always turn off the circuit breaker before opening panels or performing maintenance. Do not touch high-voltage areas or rotating parts.
- Operation: Do not insert fingers or objects into air intake/discharge. Avoid prolonged direct exposure to cool air. Ensure adequate ventilation when using with combustion appliances.
- Cleaning: Do not wash with pressure washers. Do not use flammable sprays near the unit.
- Repairs: Do not attempt self-repair. Contact a qualified service person for any troubles or damages.
- Transportation and Storage: Follow carton indications (Keep dry, Fragile, Stacking height, This side up, Handle with care, Do not drop, Do not lay down, Do not walk on this carton, Do not step). Wear protective gear during transport.
The manual also clarifies that certain conditions, such as dewdrops on the indoor unit, strange noises due to expansion/contraction, or odors from room air, are not failures. It provides troubleshooting steps for common issues like inoperative units or poor cooling/heating performance.
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