42,000 BTU Mitsubishi GX-Series 19.3 SEER2 Four Zone Wall Mounted Mini Split Heat Pump System - R454B |6 + 6 + 6 + 6

*Please Note* This product is currently estimated to ship sometime in January 2026

MXZ-5D42NL - Multi-Zone Heat Pump Outdoor Unit

The MXZ-5D42NL is a high-performance outdoor heat pump unit from Mitsubishi Electric, designed for multi-zone applications. Capable of connecting up to five indoor units, it provides efficient heating and cooling solutions for residential and light commercial settings, ensuring year-round comfort. Below are the key features and specifications of this model:

Key Features:

• Variable Speed INVERTER-Driven Compressor: Adjusts compressor speed to match heating or cooling demand, optimizing energy efficiency and maintaining consistent indoor temperatures.
• Quiet Operation: Operates at sound pressure levels as low as 52 dB(A), minimizing noise disturbances in your environment.
• Blue Fin Heat Exchanger Coating: Enhances corrosion resistance, extending the unit's lifespan, especially in coastal or humid environments.
• Built-in Base Pan Heater: Prevents ice buildup in the base pan during heating operation in cold weather conditions.
• Advanced Protections: Includes compressor overcurrent detection, fan motor overheating/voltage protection, compressor thermal protection, and high-pressure protection for enhanced safety and reliability.
• Seacoast Protection: Rated for 2,000 hours spraying time per ASTM B117 Standard, making it suitable for coastal areas.

Specifications:

• Cooling Capacity at 95°F:
  • Maximum Capacity: 43,000 BTU/h
  • Rated Capacity: 40,500 BTU/h (Non-Ducted), 38,000 BTU/h (Mixed), 36,400 BTU/h (Ducted)
  • Minimum Capacity: 12,600 BTU/h (Non-Ducted), 12,600 BTU/h (Mixed), 12,600 BTU/h (Ducted)
• Heating Capacity at 47°F:
  • Maximum Capacity: 53,600 BTU/h
  • Rated Capacity: 45,000 BTU/h (Non-Ducted), 43,000 BTU/h (Mixed), 41,000 BTU/h (Ducted)
  • Minimum Capacity: 12,800 BTU/h (Non-Ducted), 12,800 BTU/h (Mixed), 12,800 BTU/h (Ducted)
• Heating Capacity at 17°F:
  • Maximum Capacity: 30,500 BTU/h
  • Rated Capacity: 29,000 BTU/h (Non-Ducted), 27,600 BTU/h (Mixed), 26,200 BTU/h (Ducted)
• Heating Capacity at 5°F:
  • Maximum Capacity: 25,000 BTU/h
• Efficiency Ratings:
  • SEER2: 19.30 (Non-Ducted), 17.45 (Mixed), 15.60 (Ducted)
  • EER2: 9.30 (Non-Ducted), 9.15 (Mixed), 9.00 (Ducted)
  • HSPF2 (IV): 9.10 (Non-Ducted), 8.55 (Mixed), 8.00 (Ducted)
  • COP at 47°F: 3.00 (Non-Ducted), 2.82 (Mixed), 2.66 (Ducted)
  • COP at 17°F (Maximum Capacity): 2.00 (Non-Ducted), 1.80 (Mixed), 1.62 (Ducted)
  • COP at 5°F (Maximum Capacity): 1.76 (Non-Ducted), 1.56 (Mixed), 1.38 (Ducted)
• Electrical Requirements:
  • Power Supply: 208/230 V AC, Single-phase, 60 Hz
  • Guaranteed Voltage Range: 198 - 253 V AC
  • Voltage (Indoor to Outdoor, S1-S2): 208/230 V AC
  • Voltage (Indoor to Outdoor, S2-S3): 24 V DC
  • Recommended Wire Size (Indoor to Outdoor): AWG 14
  • Short-circuit Current Rating (SCCR): 5 kA
  • Minimum Circuit Ampacity (MCA): 39.2 A
  • Maximum Overcurrent Protection (MOCP): 67 A
• Fan Motor:
  • Full Load Amperage: 1.74 A
  • Output: 88 W
  • Airflow Rate: 2,447 CFM (Cooling), 2,514 CFM (Heating)
• Unit Dimensions:
  • Width: 37-13/32 inches
  • Depth: 13 inches
  • Height: 31-11/32 inches
  • Weight: 152 lbs (69 kg)

The MXZ-5D42NL is ideal for applications requiring efficient heating and cooling performance across multiple zones. Its advanced features ensure reliable operation and enhanced comfort throughout the year.

Mitsubishi Electric PAC-LMA50BC Branch Box

The Mitsubishi Electric PAC-LMA50BC Branch Box is an essential component in multi-zone HVAC systems, designed to optimize refrigerant distribution and enhance the performance of connected indoor units. This unit supports up to five indoor units, making it ideal for both residential and commercial applications.

Key Features

• Supports Multiple Indoor Units: Connects up to five indoor units, offering greater flexibility in HVAC system design.
• Efficient Refrigerant Distribution: Ensures balanced refrigerant flow to each connected indoor unit for consistent performance.
• Durable Construction: Built with galvanized steel for longevity and resistance to environmental factors.
• Compact and Space-Saving Design: Small footprint allows for easy installation in areas with limited space.
• Low Power Consumption: Operates efficiently with minimal energy usage, making it cost-effective.

Technical Specifications

• Power Supply: Single-phase, 208/230V, 60Hz
• Input Power: 0.003 kW
• Running Current: 0.15A
• Dimensions:
  • Width: 17-3/4 inches (450 mm)
  • Depth: 11-1/16 inches (280 mm)
  • Height: 6-3/4 inches (170 mm)
• Weight: 16.0 lbs (7.4 kg)

Piping Connections

• Indoor Unit Connections:
  • Liquid Line: 1/4" (6.35 mm) x 5 [A, B, C, D, E]
  • Gas Line: 3/8" (9.52 mm) x 4 [A, B, C, D], 1/2" (12.7 mm) x 1 [E]
• Outdoor Unit Connections:
  • Liquid Line: 3/8" (9.52 mm)
  • Gas Line: 5/8" (15.88 mm)

Optional Accessories

• Branch Box Enclosure (BBE-1): Provides additional protection for the branch box in exposed installations.
• Port Adapters: Facilitate connection to various pipe diameters, including:
  • ADP3812: 3/8" to 1/2"
  • PAC-SK88RJ-E: 1/2" to 3/8"
  • PAC-SK89RJ-E: 1/2" to 5/8"
  • PAC-493PI: 1/4" to 3/8"
  • PAC-SK90RJ-E: 3/8" to 5/8"
  • ADP5834: 5/8" to 3/4"

The PAC-LMA50BC Branch Box is a critical component in multi-zone HVAC systems, ensuring efficient refrigerant distribution and streamlined system operation. With its compact size, durable construction, and versatile connectivity, it provides a reliable solution for residential and commercial HVAC applications.