Installation Guide
Tools Needed:
- Vacuum pump with gauge manifold
- Refrigerant charging scale
- Tubing bender and flaring tool
- Torque wrench
- Multimeter
- Level
- Drill with hole saw
Step-by-Step Installation
- Select Installation Location: Choose a location with proper clearances (minimum 30cm from ceiling, 15cm from walls) on a solid wall.
- Mount Indoor Unit Bracket: Securely mount the mounting plate to the wall using appropriate anchors for wall type.
- Drill Wall Hole: Drill a 70mm hole through the wall with a slight downward slope to the outside for drainage.
- Connect Refrigerant Pipes: Connect copper pipes between indoor and outdoor units, ensuring proper insulation on suction line.
- Connect Drain Hose: Route drain hose with continuous downward slope to proper drainage location.
- Electrical Connection: Connect to dedicated circuit with proper breaker size according to local electrical codes.
- Vacuum and Charge: Evacuate system to 500 microns minimum, then charge with specified refrigerant amount.
- Test Operation: Test all modes (cooling, heating, fan) and check for proper drainage and airflow.
Specifications
| Model Series | MSZ-AP Series |
| Type | Wall Mounted Split System |
| Color | White / Titanium Silver |
| Cooling Capacity | 9,000 - 24,000 BTU/h |
| Heating Capacity | 10,000 - 27,000 BTU/h |
| Noise Level (Indoor) | 19 dB - 42 dB |
| Control Type | Wireless Remote with LCD Display |
| Energy Rating | A+++ (Most Efficient) |
| Power Requirements | 208-230V, 60Hz, 1 Phase |
| Refrigerant Type | R-410A |
| Dimensions Indoor (HxWxD) | 29.5 x 79.8 x 22.4 cm |
| Dimensions Outdoor (HxWxD) | 55 x 79.8 x 28.9 cm |
| Weight Indoor/Outdoor | 9.5 kg / 35 kg |
Warranty Information
- Full Warranty: 5 years parts and labor
- Compressor Warranty: 7 years on inverter compressor
- Additional Coverage: Optional extended warranty available
For warranty service, contact Mitsubishi Electric Customer Service at 1-800-433-4822 or visit MitsubishiComfort.com
Key Features
Inverter Technology
Advanced DC inverter compressor adjusts speed to maintain precise temperature control, reducing energy consumption by up to 40% compared to conventional units.
3D i-See Sensor
Intelligent sensor detects human presence and movement, automatically directing airflow away from occupants for enhanced comfort while optimizing energy use.
Quiet Operation
Specialized sound-dampening materials and aerodynamic fan design deliver whisper-quiet operation as low as 19 dB in sleep mode.
Wide Temperature Range
Provides efficient heating operation down to -13°F (-25°C) and cooling operation up to 122°F (50°C) outdoor temperatures.
Wi-Fi Connectivity
Built-in Wi-Fi with smartphone app control allows remote operation, scheduling, and energy monitoring from anywhere.
Plasma Quad Filter
Four-stage filtration system removes dust, pollen, odors, and bacteria while inhibiting mold growth on the heat exchanger.
Operating Modes Explained
Auto Mode
Intelligently selects cooling or heating based on room temperature for optimal comfort
Econo Cool
Energy-saving cooling operation with slightly reduced capacity
Powerful Mode
Maximum capacity operation for rapid cooling or heating
Sleep Mode
Gradually adjusts temperature and reduces fan speed for undisturbed sleep
Dry Mode
Dehumidifies room without significant cooling for humid conditions
Fan Only
Circulates air without cooling or heating for ventilation
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit won't start | Power issue, remote control batteries, circuit breaker | Check power supply, replace remote batteries, reset circuit breaker |
| Poor cooling/heating | Dirty filters, blocked airflow, low refrigerant | Clean filters, clear obstructions, contact technician for refrigerant check |
| Water leakage | Clogged drain line, improper installation slope | Clear drain line, ensure proper downward slope of drain hose |
| Unusual noises | Loose parts, debris in fan, vibration | Tighten mounting screws, clear debris, check installation stability |
| Remote not working | Dead batteries, signal obstruction, distance | Replace batteries, ensure line of sight, stay within 7m range |
| Ice formation | Dirty filters, low refrigerant, faulty sensor | Clean filters, contact technician for refrigerant/sensor check |
Error Codes
- P1/P2: Power supply issue - Check voltage and wiring
- E1/E2: Communication error - Check wiring between indoor/outdoor units
- F1/F2: Temperature sensor failure - Replace faulty sensor
- H1/H2: Defrost operation - Normal during heating in cold conditions
- J1/J2: Refrigerant issue - Check for leaks or overcharge
- L1/L2: Fan motor issue - Check fan motor and wiring
Manual Downloads
Current Model Manuals
MSZ-AP09NA
9,000 BTU Wall Mounted
MSZ-AP12NA
12,000 BTU Wall Mounted
MSZ-AP18NA
18,000 BTU Wall Mounted
MSZ-AP24NA
24,000 BTU Wall Mounted
Popular Previous Models
MSZ-FH09NA
9,000 BTU Hyper Heat
MSZ-GE09NA
9,000 BTU Standard
MSZ-FH15NA
15,000 BTU Hyper Heat
MSZ-GL12NA
12,000 BTU Advanced