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Know Exactly What Size System You Need

Professional load calculations using Manual J standards.

AHU RS485 Regular Heat - MASHS-H48B-2A/MO1BU-H48B-2A best place to buy hvac system

Midea MASHS-H48B-2A | MO1BU-H48B-2A 4 Ton Mini-Split Heat Pump 208/230V

SKU: MO1BUMASHS48
High Energy Efficiency and; SEER2 17.7, Eco Refrigerant, Constant Airflow, Smart Controls

Outdoor Unit Specifications

  • Compressor Type: Rotary (Model: KTQ420D1UMU)

  • Refrigerant: R454B with 1,000mL oil charge (VG74)

  • Air Flow: 4,237.9 CFM max

  • Noise Level: 65 dBA

  • Dimensions: 37.48 × 16.34 × 52.48 in (952 × 415 × 1333 mm)

  • Package Size: 43.11 × 19.49 × 57.48 in (1095 × 495 × 1460 mm)

  • Weight: 208.78 lbs (94.7 kg) net / 239.86 lbs (108.8 kg) gross

Performance & Efficiency

  • Cooling Capacity: 48,000 Btu/hr (Min 9,500 - Max 52,000)

  • Heating Capacity: 50,000 Btu/hr

  • Efficiency Ratings:

    • SEER2: 17.7 (Cooling)

    • EER2: 10.0 (Cooling)

    • HSPF2-4: 10.0 (Heating)

    • COP: 3.50 (Heating)

Electrical & Piping

  • Power Supply: 208/230V, 60Hz, 1Ph

  • System MCA: 39A

  • System MOCP: 40A

  • Liquid Line Size: 9.52mm (3/8in)

  • Gas Line Size: 19mm (3/4in)

  • Max Piping Length: 246 ft (75m)

  • Max Height Difference: 98.4 ft (30m)

  • Pre-Charged Length: 24.6 ft (7.5m)

  • Refrigerant Pre-Charged Amount: 126.99 oz (3.6 kg)

  • Additional Charge: 0.32 oz/ft (30 g/m)

  • Connection Method: Flared

Notable Features

  • Multi-position installation: Horizontal (left/right) or vertical (up/down)

  • Durable aluminum coil enhances heat transfer

  • **Constant airflow system up to 0.80 In.W.G

  • Optional R4.2 fiberglass-free insulation improves efficiency

  • Supports auxiliary heat kits up to 25kW

  • Easy maintenance design

  • Advanced control options:

    • Wired controller (standard or WiFi-enabled)

    • Wireless remote controller

    • Third-party 24V thermostat compatibility

  • Chassis and crankcase heaters equipped as standard

$6,630.00Price
Quantity
Only 2 left in stock
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  • Can I return HVAC equipment after purchase?
    Returns are accepted within 14 days for unopened equipment. See our Returns Policy for full details.
  • Do you offer warranties on products?
    Yes. All units come with a manufacturer warranty. Check with manufacturer's site for additional information.
  • Do you offer volume discounts for contractors?
    Yes. We offer exclusive pricing and support for HVAC professionals. Apply for a contractor account to unlock savings.
  • How can I contact Heatload for support?
    You can call us at 602-245-5273 or use the Contact Us form to get expert advice and order assistance.
  • Where do you ship HVAC equipment?
    We ship HVAC equipment and parts throughout Arizona and across the U.S. Local delivery is available in the Tempe–Phoenix area.
  • What types of customers do you serve?
    We work with homeowners, HVAC contractors, builders, and property managers looking for reliable design and distribution solutions.
  • How do I book a design consultation?
    Use our Design Service page to schedule a consultation online. You’ll receive confirmation and next steps via email.
  • What does your HVAC design service include?
    Our service includes Manual J heat load calculations, equipment sizing, and layout recommendations tailored to your project’s needs.
  • How long does it take to receive my HVAC design report?
    Standard turnaround time is 3 business days for home with 1 system. Expedited options are available upon request
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