Mitsubishi Electric WUZ-SA48NMZ Ecodan Air to Water Heat Pump 48,000 BTU

Product Description

The Mitsubishi Electric WUZ-SA48NMZ 48,000 BTU Ecodan air-to-water heat pump delivers high-efficiency hydronic heating and cooling for residential and light commercial applications. Featuring advanced inverter technology, it converts outdoor air into hot or chilled water for radiant floor systems, fan coils, and low-temperature baseboards. Ideal for boiler replacement or energy-efficient new construction.

• 3-in-1: Hydronic heating,cooling, and domestic hot water
• Auto Changeover: The unit will automatically switch between heating and cooling modes to maintain the set point.
• Boiler Integration : Boiler Integration enables the system to automatically switch from electric heat pump to boiler operation for consistent comfort.

Product Highlights

This all-electric system offers reliable year-round comfort and reduced operating costs. It delivers hot water up to 158°F even in low ambient temperatures and 100% heating capacity down to 5° F.

Product Information

Standard Information

• Brand: MITSUBISHI ELECTRIC
• Manufacturer Part Number: WUZ-SA48NMZ

Technical Specifications

• Heat Pump Type: Air to Water
• Hydrobox Mandatory: yes
• BTU Size: 48,000 BTU
• Gas Pipe Size: 5/8"
• Liquid Pipe Size: 1/4"
• Recommended Fuse/Breaker Size, ODU + hydrobox (without booster heater): 40 AMPS
• Heating Water Temperature Range [Minimum / Maximum]: 77F / 158F
• Maximum Capacity at A45W95: 49,130 BTU
• COP at A45W95: 3.57
• Maximum Capacity at A35W95: 49,820 BTU
• COP at A35W95: 2.98
• Maximum Capacity at A5W95: 48,450 BTU
• COP at A5W95: 2.14
• Maximum Capacity at A5W110: 47,770 BTU
• COP at A5W110: 2.04
• Maximum Capacity at A-4W95: 40,263 BTU
• COP at A-4W95: 2.23
• Maximum Capacity at A-22W95: 33,438 BTU
• COP at A-22W95: 1.94
• Cooling Water Temperature Range [Minimum / Maximum]: 41 F/ 77F
• Maximum Capacity at A95W45: 42,650 BTU
• EER at A95W45: 10.1
• Maximum Capacity at A95W65: 51,182 BTU
• EER at A95W65: 14.19
• Recommended Fuse/Breaker Size, booster heater (requires separate circuit): 35 AMPS
• Airflow Rate Cooling CFM: 1,907
• Airflow Rate Heating CFM: 2,119
• Sound Pressure Level at A7W55: 45 dB
• Unit Dimensions (W x D x H): 41-11/32" x 18-29/32" x 40-15/16"
• Unit Weight: 252 lbs
• Maximum Piping Length [Reversible System]: 164'
• Maximum Piping Length [Heating Only System]: 164'
• Maximum Height Difference ft: 100'
• Maximum Height Difference, ODU above IDU: 100'
• Maximum Height Difference, ODU below IDU: 100'
• Series: ATW
• Type: Heat pump
• Model: WUZ-SA
• Water heating range: 77°F to 158°F
• Water cooling range: 41°F to 77°F
• Capacity range: 24,000 to 48,000 BTU/H
• Refrigerant: R32