MAC 121 W - Air conditioner Meireles - Free user manual and instructions
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| Product Type | Portable Air Conditioner |
| Brand | Meireles |
| Model | MAC 121 W |
| Cooling Capacity | 12000 BTU/h (3.5 kW) |
| Power Supply | 220-240 V ~ 50 Hz |
| Power Consumption (Cooling) | 1.1 kW |
| Refrigerant | R290 |
| Noise Level | ≤ 65 dB(A) |
| Airflow | 350 m³/h |
| Timer | 24-hour programmable |
| Remote Control | Yes |
| Display | LED with digital temperature |
| Mobility | 4 castor wheels |
| Water Tank Capacity | 1 L (self-evaporating system) |
| Filter Type | Washable anti-dust filter |
| Dimensions (W x D x H) | 465 x 375 x 825 mm |
| Weight | 24 kg |
| Operating Temperature | 16-31 °C |
| Fan Speeds | 3 speeds (low, medium, high) |
| Sleep Mode | Yes |
| Energy Class | A |
| Cord Length | 1.8 m |
| Safety Features | Overheat protection, child lock |
| Maintenance | Washable filter, drain water tank manually |
Frequently Asked Questions - MAC 121 W Meireles
How do I install the exhaust hose for my Meireles MAC 121 W?
To install the exhaust hose, attach the hose connector to the back of the unit and extend the hose to the window. Secure the window kit in the opening and fix the hose adapter to the kit. Ensure the hose is as straight as possible to avoid kinks that reduce airflow.
How often should I clean the air filter?
Clean the air filter every two weeks under normal use. Remove the filter from the rear grille, wash it with lukewarm water and mild detergent, rinse thoroughly, and let it dry completely before reinstalling. A dirty filter reduces cooling efficiency and may cause the unit to freeze.
What does error code E1 mean on the display?
Error code E1 indicates a sensor malfunction or a communication issue between the internal sensor and the main control board. Turn the unit off, unplug it for 10 minutes, then restart. If the error persists, contact an authorised Meireles service centre.
How can I drain the water tank?
The MAC 121 W is equipped with a self-evaporating system, but in humid conditions the internal tank may fill up. When the tank is full, the unit will beep and the LED indicator will flash. Turn the power off, move the unit to a drain point, and unscrew the drain plug at the bottom to release the water.
Can I use the air conditioner in a room without a window?
Yes, but you must direct the exhaust hose to an opening such as a door, hatch, or duct. The hose carries hot air outside; without proper ventilation, the cooling performance will drop and the unit may overheat. Ensure the exhaust air is not recirculated into the room.
How do I set the timer to automatically turn off the unit?
Press the TIMER button on the remote control. The display will show the current time. Use the + and – buttons to set the desired hour (1-24) and press TIMER again to confirm. The unit will switch off automatically after the set period.
What is the recommended room size for the MAC 121 W?
This air conditioner is optimised for rooms up to 25-30 square meters (approximately 270-320 square feet). For larger rooms, performance may decrease, especially in direct sunlight or with high heat sources.
How do I use the remote control to adjust the temperature?
Point the remote control at the unit and press the ▲ or ▼ buttons to increase or decrease the set temperature. The temperature range is 16-31 °C. The display will show the new set temperature each time you press a button.
Is the Meireles MAC 121 W a heat pump with heating mode?
No, the MAC 121 W is a cooling-only portable air conditioner. It does not have a heating function. To heat the room, switch the unit to fan-only mode, but this will not generate heat.
How do I reset the unit after a power surge?
To reset the unit, disconnect it from the electrical outlet and wait 5-10 minutes. Plug it back in and press the ON/OFF button. If the unit still malfunctions, check the circuit breaker and ensure the power outlet supplies the correct voltage (220-240 V).
User questions about MAC 121 W Meireles
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USER MANUAL MAC 121 W Meireles
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Product information
Brand : Meireles
Model : MAC 121 W
Category : Air conditioner