This document is a user manual for a Window Air Conditioner, model NCA series. It provides comprehensive instructions for installation, operation, maintenance, and troubleshooting of the device.
Function Description:
The Window Air Conditioner is designed to cool indoor spaces by removing heat and humidity. It functions as a self-contained unit that can be installed in a window opening. The device offers various operating modes, including Cool, Dry, Sleep, and Energy Saver, to suit different user preferences and environmental conditions. It also features a fan-only mode for air circulation without cooling. The unit is equipped with a control panel and a remote control for convenient operation.
Important Technical Specifications:
- Power Supply: 115 Volt, 60Hz, 15-amp fused grounded 3-prong outlet. A time-delay fuse or time-delay circuit breaker is recommended. A dedicated circuit only should be used.
- Refrigerant: The maximum refrigerant charge amount is NCA-06C/X1E-8.82OZ, and the minimum refrigerant charge amount is NCA-08C/X1E-9.88OZ. The refrigerant type is not explicitly stated but is implied to be a flammable refrigerant, requiring specific handling and safety precautions.
- Room Size: The appliance shall be stored in a well-ventilated area where the room size is not less than 4 m².
- Temperature Range: The temperature can be set between 62°F and 86°F (17°C and 30°C) when the air conditioner is in Cool and Energy Saver mode.
- Dimensions (Installation Requirements):
- Unit Height: 15"
- Unit Width: 18.7"
- Min. Window Opening: 16"
- Min. Window Width (Including space needed for foam sealer): 24"
- Max. Window Width: 48"
- Max. Window Sill fit: 11"
- Filter Indicator: The filter indicator illuminates every 250 hours of operation as a reminder to clean the filter.
- Timer Function: Allows programming the air conditioner to turn Off or On from 1-hour to 24-hours in advance.
- Safety Features: Includes a water-full safety alarm and shut-off protection function (detects for 10 seconds that the water level exceeds the limit water level, and the water level switch is disconnected), and an anti-frozen protection function (E4 code display, compressor and water wheel motor will stop working if tube temperature is ≤2 °C/36 °F for 20 seconds). A 3-minute delay re-start protection for the compressor is also integrated.
Usage Features:
- Control Panel: The unit features a control panel with buttons for Power, Filter Reset, Timer, Mode, Fan Speed, Sleep, and Up/Down arrows for temperature and time adjustments.
- Remote Control: A remote control is provided for convenient operation from a distance, offering buttons for Power, Mode, Fan Speed, Energy Saver, Auto, Lock, Sleep, and Timer. It requires two AAA batteries.
- Operating Modes:
- Cool Mode: Cools the room to the set temperature.
- Dry Mode: Reduces humidity in the room.
- Fan Mode: Circulates air without cooling.
- Sleep Mode: Automatically adjusts fan speed and temperature to maintain comfort during sleep, gradually increasing the set temperature by 1°C (1°F) after one hour and another 1°C (1°F) after two hours.
- Energy Saver Mode: The fan will turn off when the set temperature is reached and turn on periodically to sample the room air.
- Fan Speed: Adjustable fan speeds (High, Medium, Low, Quiet) are available in Cool, Dry, Auto, Sleep, and Energy Saver modes.
- Timer Function: Allows users to program the unit to turn on or off at a specific time, from 1 to 24 hours in advance.
- Temperature Adjustment: Users can adjust the desired temperature using the Up and Down arrow buttons.
- Wi-Fi Connectivity: The manual mentions a Wi-Fi configuration state or release Wi-Fi connection, suggesting the possibility of smart control features, though details are not extensively covered.
Maintenance Features:
- Filter Cleaning: The air filter should be cleaned every two weeks or when the filter indicator light illuminates (every 250 hours). This involves pulling out the filter from the inlet grille, washing it with warm water (about 40°C) and a neutral cleaner, rinsing, and drying it in a cool place. Do not use harsh objects or brushes.
- Surface Cleaning: The unit's surface should be cleaned with a soft cloth and mild detergent. Avoid using chemical solvents, alcohol, or abrasive cleaners.
- Air Outlet/Louvers Cleaning: Clean the air outlet or louvers with a soft cloth and detergent.
- Indoor Drainage: The manual describes how to drain the internal water, which is important for preventing overflow. This involves placing a container under the water outlet on the left side of the unit, unplugging the water plug, and allowing water to flow into the container.
- End of Season Storage: Instructions for end-of-season maintenance include keeping the unit in fan mode for 4 hours to dry the inside, turning off the unit, pulling out the plug, removing the air conditioner from the window, cleaning and storing it properly in a dry place, and ensuring all accessories are protected.
- Troubleshooting: A comprehensive troubleshooting guide is provided, listing common problems (e.g., power supply failure, water-full display, bad cooling, remote control issues, error codes like "E1", "E2", "E4") along with their causes and solutions.
- Refrigerant Handling: The manual emphasizes strict adherence to safety precautions when handling flammable refrigerants, including proper ventilation, avoiding ignition sources, and ensuring qualified personnel perform any work involving the refrigerant circuit. It details procedures for leak checks, evacuation, charging, and recovery of refrigerant.
- Disposal: Electrical products should be disposed of properly and recycled where facilities exist, in accordance with local authority or retailer for recycling.
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