User Manual for Della 048-GM-48266 Portable Air Conditioner
Quick guide for the Della 048-GM-48266 portable air conditioner. Includes installation steps for the exhaust hose, operation modes, maintenance, and troubleshooting for error codes.
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This portable air conditioner is designed for indoor use to provide cooling, dehumidification, and fan-only operation. Before first use, ensure the unit has been kept in an upright position for at least 2 hours. The unit requires proper installation of the exhaust hose and window seal-plate to function correctly.
Safety Instructions
Electrical Safety:
- All wiring must comply with local and national electrical codes.
- The unit must be grounded. Do not remove the ground prong or use an adapter/extension cord.
- Never connect or disconnect the power plug with wet hands.
- Do not share the power outlet with other appliances.
General Safety:
- Indoor use only. Do not use in bathrooms or humid environments.
- Keep children away from the unit.
- Do not cover or obstruct air inlets or outlets.
- Move and install the unit with two or more people.
- Do not use chemical solvents to clean the unit.
Features and Parts
The unit features a control panel, vertical and horizontal louvers, a remote control compartment, and an exhaust hose assembly. The control panel allows for mode selection (Cool, Dehumidify, Fan, Sleep), fan speed adjustment, and timer settings.


Operation and Settings
Modes:


- Cool Mode: Adjustable temperature range of 17-30°C (62-86°F). Compressor and fan start when room temperature is 1°C higher than the set temperature.
- Fan Mode: Fan runs at set speed; compressor does not work. Temperature cannot be adjusted.
- Dehumidify Mode: Fan runs at low speed automatically.
- Sleep Mode: Available under cooling mode. Temperature increases by 1°C after 2 hours, and another 1°C after another 2 hours.
Timer: Can be set for automatic ON or OFF within a range of 1-24 hours.
Installation
Exhaust Hose Installation:


- Extend the exhaust hose and screw the round adapter onto it (anticlockwise).
- Attach the exhaust hose assembly to the exhaust outlet on the back of the unit.
- Install the window seal-plate in the window and secure it with screws.
- Connect the rectangle end of the exhaust hose adapter to the window seal-plate.
Important: Keep the unit at least 50cm away from walls or other objects. The exhaust hose length is 280mm-1500mm; do not extend it.
Drainage
Manual Drain: When the water tank is full, the unit stops, and the "FL" indicator flashes. Place a tray below the drain outlet, remove the drain cover and stopper to drain the water.
Continuous Drain: Connect a 13mm PVC drain hose to the drain hole and lead it to a drain or outdoor area.
Maintenance
Filter Cleaning: Clean the filters every two weeks to maintain performance.
- Remove filters from the back and side panels.
- Wash gently in warm water (about 40°C) with detergent.
- Dry in the shade before reinstalling.
Troubleshooting
If the unit fails to start, check the power supply, drain the water tank, or check the ambient temperature (recommended 10-35°C). Error codes include E1 (tube temperature sensor failure), E2 (room temperature sensor failure), and E4 (anti-freeze protection). If the "FL" indicator is on, drain the water.
Manufacturer information
Della
Practical help
Common problems
Check power supply, drain water if 'FL' is displayed, or check if ambient temperature is within 10-35°C.
Close doors and windows, remove heat sources, clean dirty filter, or remove obstructions from air inlet/outlet.
Place the unit on a flat, firm surface.
Wait for the overheat protection to reset; the unit will restart automatically.
Bring the remote closer to the unit and ensure it is aimed at the signal receptor.
Before use
- Keep unit upright for at least 2 hours before first installation.
- Ensure the unit is on a flat surface with less than 5 degrees inclination.
- Do not use in bathrooms or humid environments.
- Ensure the exhaust hose is not bent more than 45 degrees.
- Install two new alkaline AAA batteries in the remote control.
Specs in practice
- Temperature range
- 17-30°C (62-86°F) in cooling mode.
- Exhaust hose length
- 280mm - 1500mm.
Images and diagrams
- Control panel shows modes and settings.
- Exhaust hose installation requires adapter and window seal-plate.
- Drainage can be manual (tray) or continuous (hose).
Model compatibility
- Do not use cooling mode if ambient temperature is above 35°C.
- Use only alkaline AAA batteries for the remote.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.