Installation Guide
Tools Needed:
- Pipe cutter and flaring tool
- Vacuum pump and manifold gauge
- Torque wrench
- Electrical test equipment
- Level and measuring tape
Step-by-Step Installation
- Select Installation Location: Choose a location with proper clearance for airflow, drainage, and service access on a solid wall.
- Mount Indoor Unit: Install mounting plate securely to wall, ensuring proper leveling for condensate drainage.
- Install Refrigerant Piping: Connect copper pipes between indoor and outdoor units using proper insulation and flare connections.
- Electrical Connections: Connect power supply cables to specified terminals following UK wiring regulations (BS 7671).
- Drainage System: Install condensate drain pipe with proper slope (minimum 1:100 gradient) to ensure water drainage.
- Vacuum and Pressure Test: Evacuate system to remove moisture and air, then pressure test for leaks.
- Commissioning: Release refrigerant, test all functions, and configure system settings.
Specifications
| Model Series | MSZ-AP / MUZ-AP Series |
| Type | Wall Mounted Split System |
| Colour | Pure White / Titanium Silver |
| Cooling Capacity | 2.5kW - 7.1kW |
| Heating Capacity | 3.2kW - 8.0kW |
| Noise Level (Indoor) | 19 dB - 42 dB |
| Control Type | Remote Control with Wi-Fi Option |
| Energy Rating | A+++ (Seasonal Efficiency) |
| Refrigerant | R32 (GWP 675) |
| Power Requirements | 230V, 50Hz, 1Ph |
| Dimensions Indoor (HxWxD) | 29.5 x 79.8 x 24.9 cm |
| Dimensions Outdoor (HxWxD) | 55.0 x 79.8 x 28.9 cm |
| Operating Temperature | -15°C to 46°C (Heating: -15°C to 24°C) |
Warranty Information
- Standard Warranty: 5 years parts and labour (when installed by accredited installer)
- Compressor Warranty: 7 years on inverter compressor
- Extended Warranty: Optional 7-10 year warranty available
For warranty service, contact Mitsubishi Electric UK at 01707 282880 or visit mitsubishielectric.co.uk
Key Features
Inverter Technology
Advanced DC inverter compressor adjusts power output to match exact cooling/heating demands, providing consistent temperature control with up to 40% energy savings.
3D i-See Sensor
Intelligent sensor detects human presence and movement, automatically directing airflow away from occupants for enhanced comfort while optimising energy usage.
Eco-friendly R32 Refrigerant
Uses R32 refrigerant with 68% lower global warming potential than R410A, complying with latest F-Gas regulations and environmental standards.
Wi-Fi Control & MELCloud
Connect to MELCloud platform for remote control via smartphone, scheduling, energy monitoring, and integration with smart home systems.
Quiet Operation
Advanced noise reduction technology delivers whisper-quiet operation as low as 19dB, equivalent to rustling leaves.
Powerful Heating
Hyper Heating technology maintains full heating capacity even at -15°C outdoor temperature, ideal for UK winter conditions.
Operation Modes Explained
Auto Mode
Intelligently switches between cooling and heating based on room temperature
Eco Mode
Optimises energy consumption while maintaining comfort levels
Powerful Mode
Rapid cooling/heating for quick temperature adjustment
Quiet Mode
Reduces fan speed for ultra-quiet nighttime operation
Dry Mode
Dehumidifies air without significant cooling, ideal for UK damp conditions
Fan Only
Circulates air without cooling or heating function
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit not starting | Power supply issue, remote control batteries dead | Check circuit breaker, replace remote batteries, ensure power switch is on |
| Poor cooling/heating | Dirty filters, blocked airflow, incorrect mode | Clean air filters, clear obstructions, select correct operating mode |
| Water leaking indoors | Clogged drain pipe, incorrect installation slope | Clear drain pipe, ensure proper drainage slope (minimum 1:100) |
| Unusual noises | Loose parts, debris in fan, ice formation | Tighten mounting screws, clear debris, check for ice on coils |
| Remote not working | Batteries dead, signal blocked, sensor issue | Replace batteries, ensure clear line of sight, check remote sensor |
| Error code displayed | System fault, sensor failure, communication error | Note error code and refer to service manual, contact technician |
Common Error Codes
- E0: Outdoor unit protection - Check outdoor unit operation
- E1: Indoor PCB fault - Contact service technician
- E6: Communication error - Check wiring between indoor/outdoor units
- H0: Sensor fault - Check temperature sensors
- H3: High pressure protection - Check refrigerant pressure
- P1: Fan motor protection - Check indoor fan operation
- P8: High temperature protection - Allow unit to cool down
Manual Downloads
Current UK Models
MSZ-AP25VG / MUZ-AP25VG
2.5kW Wall Mounted Split System
MSZ-AP35VG / MUZ-AP35VG
3.5kW Wall Mounted Split System
MSZ-AP50VG / MUZ-AP50VG
5.0kW Wall Mounted Split System
MSZ-AP71VG / MUZ-AP71VG
7.1kW Wall Mounted Split System
Popular Previous UK Models
MSZ-LN25VG / MUZ-LN25VG
2.5kW Premium Series
MSZ-SF25VE / MUZ-SF25VE
2.5kW Standard Series
MSZ-EF25VE / MUZ-EF25VE
2.5kW Eco Series
MSZ-HR25VF / MUZ-HR25VF
2.5kW Kirigamine Design