Installation Guide
Tools Needed:
- Refrigeration gauge manifold
- Vacuum pump
- Torque wrench
- Flaring tool set
- Multimeter
- Level
- Pipe cutter
Step-by-Step Installation
- Select Installation Location: Choose a location for outdoor unit with proper clearance (minimum 30cm from walls) and solid foundation.
- Mount Indoor Units: Install indoor units on interior walls with proper spacing from ceiling and walls as specified in manual.
- Install Refrigerant Piping: Connect copper pipes between outdoor and indoor units using proper insulation and flare connections.
- Electrical Wiring: Connect power supply to outdoor unit (220-240V) and communication wiring between all units following wiring diagram.
- Drainage System: Install condensate drain pipes with proper slope (minimum 1/100 gradient) and route to appropriate drainage point.
- Vacuum and Charge: Evacuate system to 500 microns, hold vacuum, then charge with specified refrigerant type and amount.
- System Test: Power on system, test all functions, check for leaks, and verify proper operation of all zones.
Specifications
| Model Series | MXZ-SM Series |
| System Type | Multi-Zone Inverter Heat Pump |
| Cooling Capacity | 48,000 BTU/h |
| Heating Capacity | 54,000 BTU/h |
| Maximum Indoor Units | 8 Zones |
| Refrigerant Type | R410A |
| Power Supply | 208-230V, 60Hz, 1 Phase |
| Energy Efficiency Ratio (EER) | 12.5 |
| Heating Seasonal Performance (HSPF) | 10.5 |
| Sound Level (Outdoor Unit) | 58 dB(A) |
| Dimensions (Outdoor Unit) | 35.4" x 43.3" x 15.7" |
| Operating Temperature Range | -13°F to 122°F (Cooling) / -13°F to 75°F (Heating) |
Warranty Information
- Compressor Warranty: 7 years parts
- Parts Warranty: 5 years parts
- Labor Warranty: 1 year labor
- Registration Bonus: Additional 2 years when registered within 90 days
For warranty service, contact Mitsubishi Electric at 1-800-433-4822 or visit MitsubishiComfort.com
Key Features
Inverter Technology
Advanced DC inverter compressor adjusts speed continuously to maintain precise temperature control, reducing energy consumption by up to 40% compared to conventional systems.
Multi-Zone Control
Simultaneously control up to 8 indoor units from a single outdoor unit, allowing individual temperature settings for each room or zone.
Hyper-Heating INVERTER®
Provides reliable heating performance even in extreme cold conditions down to -13°F, maintaining efficiency when conventional heat pumps fail.
3D i-See Sensor
Intelligent sensor detects human presence and movement, automatically directing airflow away from occupants for enhanced comfort.
Wi-Fi Connectivity
Connect to Mitsubishi Electric's mobile app for remote control, scheduling, energy monitoring, and system diagnostics from anywhere.
Quiet Operation
Advanced sound-dampening technology and low-vibration design ensure whisper-quiet operation as low as 19 dB for indoor units.
Advanced Operation Modes
Auto Changeover
System automatically switches between heating and cooling based on room temperature and setpoint
Eco Mode
Optimizes energy consumption while maintaining comfort with intelligent temperature adjustments
Powerful Mode
Rapid cooling or heating for quick temperature recovery when entering a room
Sleep Mode
Gradually adjusts temperature overnight for optimal sleeping conditions and energy savings
I-Feel Control
Remote controller acts as temperature sensor for precise comfort at your location
Follow Me
Uses remote control's built-in sensor to maintain temperature where you are in the room
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| System won't start | Power outage, circuit breaker tripped, emergency stop activated | Check power supply, reset breakers, verify emergency stop switch |
| Poor cooling/heating | Dirty filters, low refrigerant, blocked airflow | Clean filters, check refrigerant charge, clear obstructions |
| Water leakage | Clogged drain line, improper installation slope | Clear drain line, ensure proper drainage slope |
| Unusual noises | Loose parts, debris in fan, vibration | Tighten components, clear debris, check mounting |
| Ice formation on unit | Low refrigerant, dirty coils, airflow restriction | Check refrigerant charge, clean coils, ensure proper airflow |
| Remote not working | Dead batteries, signal obstruction, distance too far | Replace batteries, clear line of sight, move closer |
Error Codes
- E0: Outdoor unit protection - Check outdoor unit operation
- E1: Indoor unit PCB error - Reset system or replace PCB
- E6: Communication error - Check wiring between indoor/outdoor units
- E7: Outdoor fan motor error - Check fan motor and connections
- H0: Refrigerant leak detection - Check for leaks and charge
- H9: Outdoor temperature sensor error - Replace sensor
- P1: Overload protection - Reduce load or check voltage
- P8: High temperature protection - Check airflow and clean coils
Manual Downloads
Current Model Manuals
MXZ-SM48NAMHZ
48K BTU Multi-Zone System
MXZ-SM36NAMHZ
36K BTU Multi-Zone System
MXZ-SM60NAMHZ
60K BTU Multi-Zone System
MXZ-SM42NAMHZ
42K BTU Multi-Zone System
Popular Previous Models
MXZ-4C36NA2
36K BTU 4-Zone System
MXZ-8C48NA2
48K BTU 8-Zone System
PUZ-HA36NKA
36K BTU Outdoor Unit
MSZ-FH Series
Wall Mounted Indoor Units