Hisense amo3-27u3t25u 27K Multi-zone Outdoor Heat Pump

Product Description

The HISENSE amo3-27u3t25u is a 27,000 BTU/h multi-zone outdoor heat pump unit designed for ductless and ducted mini-split installations. It operates on 208/230 volts and uses R-454B refrigerant, delivering a SEER2 rating of up to 23 in non-ducted configurations and an HSPF2 of up to 10. The unit connects to between 1 and 3 indoor air handlers, making it suitable for multi-room or multi-zone residential and light commercial conditioning. Cooling capacity ranges from 9,000 to 31,000 BTU/h, and heating capacity ranges from 20,100 to 44,000 BTU/h. Licensed HVAC technicians handle installation and refrigerant work.

This outdoor condensing unit is engineered for multi-zone mini-split systems in residential and light commercial applications. It supports both fully non-ducted indoor units and ducted air handlers, or a mixed combination of both. The unit operates across a cooling ambient temperature range of 5 to 125 degrees F and a heating range of -13 to 75 degrees F, making it viable in cold-climate installations. Connectable indoor unit capacity ranges from 21,600 to 35,100 BTU/h nominal, giving installers flexibility when sizing zones. Maximum total refrigerant pipe length is 230 feet, with a maximum of 82 feet per individual branch run.

Key Features

• 27,000 BTU/h nominal capacity with modulating range from 9,000 to 31,000 BTU/h cooling
• SEER2 up to 23 (non-ducted), 20.5 (mixed), and 18 (ducted)
• HSPF2 up to 10 (non-ducted), supporting cold-climate heating down to -13 degrees F
• R-454B low-GWP refrigerant for compliance with current environmental regulations
• Supports 1 to 3 indoor units across non-ducted, ducted, or mixed configurations
• Sound pressure level of 62 dBA in both cooling and heating modes

Compatibility

Designed for use as the outdoor unit in multi-zone ductless mini-split systems supporting 1 to 3 indoor air handlers with a combined connectable capacity between 21,600 and 35,100 BTU/h. Compatible indoor units must use R-454B refrigerant and 208/230-volt electrical supply. Consult HISENSE system pairing documentation to confirm approved indoor unit combinations.

Installation Notes

Installation must be performed by a licensed HVAC technician holding EPA Section 608 certification for handling R-454B refrigerant. Disconnect and lock out all electrical power before making any wiring connections to the outdoor unit. Refrigerant line sets require proper flaring or brazing at the liquid connection (1/4 inch) and suction fitting (3/8 inch); follow local mechanical codes and the manufacturer installation manual for line set routing and support requirements. Do not exceed the specified maximum pipe lengths or connectable capacity range, as doing so will affect system performance and may void equipment warranties.

Technical Specifications

• Nominal Cooling/Heating Capacity: 27,000 BTU/h
• Cooling Capacity Range: 9,000 to 31,000 BTU/h
• Heating Capacity Range: 20,100 to 44,000 BTU/h
• SEER2 (Non-Ducted): 23.00
• SEER2 (Mixed): 20.50
• SEER2 (Ducted): 18.00
• EER2 (Non-Ducted): 12.85
• EER2 (Mixed): 12.20
• EER2 (Ducted): 11.50
• HSPF2 (Non-Ducted): 10.00
• HSPF2 (Mixed): 9.40
• HSPF2 (Ducted): 8.80
• Voltage: 208/230 volts
• Amps (Cooling): 25 amps
• Max Fuse Size: 40 amps
• Refrigerant: R-454B
• Cooling Ambient Temperature Range: 5 to 125 degrees F
• Heating Ambient Temperature Range: -13 to 75 degrees F
• Sound Pressure (Cooling): 62 dBA
• Sound Pressure (Heating): 62 dBA
• CFM High: 3,357
• Liquid Line Connection: 1/4 inch
• Suction Line Connection: 3/8 inch
• Max Total Pipe Length: 230 feet
• Max Each Branch Pipe Length: 82 feet
• Min Connectable Indoor Units: 1
• Max Connectable Indoor Units: 3
• Min Connectable Capacity: 21,600 BTU/h
• Max Connectable Capacity: 35,100 BTU/h
• Unit Type: Outdoor
• Zone Type: Multi-Zone
• Width: 38.375 inches
• Height: 32.875 inches
• Depth: 14.125 inches
• Weight: 160.6 pounds
• Shipping Weight: 183.20 pounds
• Shipping Dimensions: 43.75 x 18.13 x 37.75 inches

Standard Information

• Brand: HISENSE
• Manufacturer Part Number: amo3-27u3t25u