Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Drill with hole saw attachment
- Tape measure
- Vacuum pump and gauge manifold
Step-by-Step Installation
- Choose Installation Location: Select a location on a solid wall with proper support, away from direct sunlight and heat sources.
- Install Mounting Bracket: Secure the mounting bracket to the wall using appropriate anchors and ensure it is perfectly level.
- Create Wall Opening: Drill a 3-inch hole through the wall for refrigerant lines and drainage hose.
- Connect Refrigerant Lines: Connect the pre-charged refrigerant lines between indoor and outdoor units, ensuring tight connections.
- Electrical Connection: Connect to a dedicated 230V, 50Hz, 15A circuit with proper grounding. Follow local electrical codes.
- Drainage Setup: Install the drainage hose with a downward slope to ensure proper water drainage.
- Vacuum and Test: Evacuate the system using a vacuum pump, then release refrigerant and test for leaks.
- Final Test: Run the air conditioner through all modes to ensure proper operation and cooling performance.
Specifications
| Model Series | MSMA-12HRN1 |
| Type | Split Type Air Conditioner |
| Color | White |
| Cooling Capacity | 12000 BTU/h |
| Heating Capacity | 13000 BTU/h |
| Noise Level (Indoor) | 19-38 dB |
| Control Type | Remote Control with LED Display |
| Energy Rating | A++ (Energy Efficient) |
| Power Consumption (Cooling) | 1080 W |
| Power Requirements | 230V, 50Hz, 15A |
| Refrigerant | R32 |
| Dimensions Indoor (HxWxD) | 29 x 80 x 20 cm |
| Dimensions Outdoor (HxWxD) | 55 x 72 x 28 cm |
| Weight Indoor/Outdoor | 9 kg / 28 kg |
Warranty Information
- Full Warranty: 1 year parts and labor
- Compressor Warranty: 5 years on inverter compressor
- Extended Coverage: Optional extended warranty available
For warranty service, contact Midea Customer Service at 1-800-288-8888 or visit Midea.com
Key Features
Inverter Technology
Advanced inverter compressor adjusts cooling/heating output to maintain desired temperature consistently, reducing energy consumption by up to 30% compared to conventional units.
Turbo Cooling
Rapid cooling function that quickly brings room temperature to desired level, perfect for immediate comfort on hot days.
Sleep Mode
Intelligent sleep mode automatically adjusts temperature and fan speed throughout the night for optimal comfort and energy savings while you sleep.
Self-Cleaning Function
Automatically cleans the indoor unit's heat exchanger to prevent mold and bacteria growth, ensuring clean air output and maintaining efficiency.
Wi-Fi Smart Control
Connect to your home Wi-Fi network for remote control via smartphone app, allowing you to adjust settings, monitor energy usage, and create schedules from anywhere.
Eco Mode
Energy-saving mode that optimizes operation to minimize power consumption while maintaining comfort levels.
Operating Modes Explained
Cool Mode
Standard cooling operation for hot weather conditions
Heat Mode
Heating operation for cold weather conditions (heat pump models only)
Dry Mode
Dehumidification function that removes excess moisture without overcooling
Fan Mode
Circulates air without cooling or heating, with adjustable fan speeds
Auto Mode
Automatically selects cooling or heating based on room temperature
Quiet Mode
Reduces operating noise for minimal disturbance during sleep or work
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Air conditioner won't start | Power issue, remote control batteries dead, circuit breaker tripped | Check power supply, replace remote batteries, reset circuit breaker |
| Poor cooling performance | Dirty filters, blocked airflow, refrigerant leak, outdoor unit obstructed | Clean filters, clear obstructions, check for leaks, clear outdoor unit area |
| Water leaking indoors | Clogged drain pipe, improper installation slope, frozen evaporator | Clear drain pipe, ensure proper slope, check for ice buildup |
| Unusual noises | Loose parts, debris in fan, vibrating pipes | Tighten all fasteners, clear debris, check pipe insulation |
| Foul odors | Dirty filters, mold growth in drain pan | Clean or replace filters, clean drain pan and use anti-mold treatment |
| Remote control not working | Dead batteries, signal obstruction, remote sensor issue | Replace batteries, ensure line of sight, check indoor unit sensor |
Error Codes
- E1: Room temperature sensor error - Check sensor connection
- E2: Evaporator temperature sensor error - Check sensor connection
- E3: Condenser temperature sensor error - Check outdoor unit sensor
- E4: Communication error - Check wiring between indoor and outdoor units
- E5: Overload protection - Wait 3 minutes and restart
- E6: Compressor error - Contact service center
- E7: Fan motor error - Check indoor fan motor
- E8: High pressure protection - Check for blocked airflow
Manual Downloads
Current Model Manuals
MSMA-12HRN1
12000 BTU Inverter AC
MSMA-09HRN1
9000 BTU Inverter AC
MSMA-18HRN1
18000 BTU Inverter AC
MSMA-24HRN1
24000 BTU Inverter AC
Popular Previous Models
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