M3O and M4O standard multi-zone ductless outdoor unit work with up to three (M30) or up to four (M40) indoor systems. Each indoor system comes with its own control, so you can set each room to a different temperature. Free match with any wall mount, ceiling cassette, ducted system, or console. DC Inverter Heat Pump provides year-round comfort allowing the unit to reverse the refrigerant process in cold weather, by extracting outside heat and transferring inside.
Excellent for house additions without forced air heating systems or where ductwork is not possible.
Features:
• Inverter technology delivers smooth, energy-efficient operation
• Outdoor sizes: 27k / 36k Btu/h
• Indoor sizes: 9k / 12k / 18k Btu/h
• Produces minimal noise and blends in with surroundings
• Built-in Base pan heater for all outdoor multi-zone systems
• Condenser high-temperature protection
• Wireless remote control included for wall mount indoors. Wired controller optional
• Turbo Operation: unit maximizes cooling or heating output capacity to attain the desired temperature in the shortest amount of time
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Anti-Cold-Air Prevents cold air from blowing out at the beginning of operation by automatically regulating fan speed according to temperature |
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Sleep Well Unit automatically increases (cooling) or decreases (heating) 2°F/hour for first 2 hours, and holds steady for next 5 hours before switching off and returning to preset temperature for both energy savings and comfort |
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Hydrophilic Aluminum Fin – Improves indoor unit cooling efficiency by enabling unrestricted flow of condensate water between aluminum fins |
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Golden Fin Anti-corrosive coating on indoor and outdoor units withstands salty air, rain and other corrosive elements while improving heating efficiency by accelerating defrosting process |
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Low Ambient Kit With a special built-in kit the air conditioner can be used in temperatures as low as 5°F for cooling |
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Self-Diagnostic Function Allows unit to detect abnormal operations or part failures, display an error code on the indoor unit, and switch off automatically to protect the system |
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Auto Defrost Evaporator automatically defrosts, prolonging product life and improving energy savings |
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Refrigerant Leak Detection Displays EC error code on indoor unit if outdoor unit detects refrigerant leak condition |
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Follow Me Feature Remote control with built-in room temperature sensor regulates room temperature around remote — allowing remote to become a thermostat |


















