21 SEER: 3.5 Ton Tri-Zone Ceiling Cassette AC, Heat Pump:  The 42000 BTU Tri Zone INVERTER mini split can cool or heat THREE separate zones (12000 + 12000 + 18000 BTU) for a total coverage area of over 1800 ft² (550 + 550 + 750 ft² areas). The air handlers are discreetly recessed into a ceiling panel - only grill is visible. Inverter technology provides benefits of low operation temps, rapid cooling / heating, as well as maximum efficiency. R410A Pre-charged - .

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3.5 Ton Mini Split : CEILING

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42000 BTU Tri Zone Mini Split
Indoor Unit Remote Control Outdoor Unit warranty
 System Includes:
  • 42000 BTU Cooling / Heating: 12k + 12k + 18k
  • Tri-Zone Ceiling Cassette Setup
  • Outdoor Unit - Compressor
  • Digital Multi-function LCD Remote Control x 3
  • No linesets or wires included with this item.
  • Add linesets & wire using dropdown menus

    3.5 TON Tri-Zone CEILING: 12k x2 + 18k

    Price: $4630.45   Free Shipping  
  • Select your choice of lengths for each BTU: 
  • Select to add wire

    Features back to the top
    mini split features Top Line Features:
    • Tri Air Handlers Mounts Discreetly in Ceiling
    • Full 1 Year Parts Warranty - 5 Year Compressor >
    • Intelligent Mechanical Defrosting
    • Washable Filters - Biologically Active Enzyme
    • Low Startup Temps - MAXIMUM EFFICIENCY
    • Pre-charged w/ R-410A Freon For 25' [x3] of Piping
    • Sleep Mode - 24 hour ON/OFF Timer - Memories
    • Enhanced Copper Coil - Wide Angle Air Spread
    • Flexible, Quick Installation - Easy Operation
    Mini Split Features
    Specifications back to the top
    12000 BTU Indoor Unit (air handler) specs: CLICK TO ENLARGE
    18000 BTU Indoor Units (air handler) specs: CLICK TO ENLARGE
    Outdoor Unit (compressor) specs CLICK TO ENLARGE
    21 SEER ETL LISTED SANYO Compressor Cooling & Heating R410A refrigerant
    Remote Controls back to the top
    DC Inverter Mini Split AC Heat Pump  

    DC Inverter Air Conditioners are the ultimate cooling and heating technology of the HVAC field.  They are called "DC inverter" because the alternative current (AC) is converted to Direct Current (DC) then, direct current inverted back to Alternative current with desired frequency. As known, the current supplied through the wall outlet has fixed frequency which is 60 Hertz. Different frequencies supplied to the compressor will result different running speeds of the compressor.  YMGI Inverter control systems use Pulse Amplitude Modulation (PAM) that is the most advanced and energy efficient method of inverting the current.  DC Inverter air conditioners bear special compressors that their speed could be changed by increasing or decreasing the frequency of the supplied power.  Therefore, unlike conventional split Air Contioners/Heat Pumps which cycle between on and off repeatedly, the DC Inverter control system will monitor the room temperature and adjust the compressor speed automatically.

    Conventional compressors turn on and off to maintain the room temperature at desired level.  This will result compressor to draw tremendous energy each time it starts up. This will also reduce the life-span of the compressor and other components that are turning on and off.  Once a conventional system is running, it runs at its maximum speed, consuming the maximum amount of energy in order to produce the maximum of cooling or heating to maintain the desired temperature.  The system will then cycle between on and off in an effort to maintain this temperature. When a DC Inverter compressor initially starts up, it runs with a higher speed to bring the room temperature to desired level rapidly. Once the set temperature is reached, it slows down and adjust its capacity to counter the heat loss or heat gain of the building. By this way it will maintain a constant temperature.

    Inverter Split
    Installation Overview back to the top
    BASIC OVERVIEW: The installation of a ceiling cassette is much like that of a ductless mini split with the exception that instead of a wall mounted air handler, a ductless ceiling cassette mounts in the ceiling Usually as a flush mount or in a drop ceiling. The indoor unit (ceiling cassette) and outdoor unit (condenser) are connected to each other by means of refrigerant copper tubing and electrical cables that are routed through the ceiling and outside to the condenser outputs via a 2-3 inch hole. The compressor comes pre-charged with freon however, procedures such as conducting leak tests etc. are still important steps in ensuring proper functioning of a ceiling cassette system. Click to Download Installation Manual. *Although the installation may seem easy to some, certain tools and experience is necessary to complete installation of a ceiling cassette system. A certified HVAC technician must conduct / complete the installation to be eligible for product warranty. (See warranty details below > ) Installation Kit
    Ceiling Cassette Diagram
    Remote Controls back to the top
    *5 Year Compressor - 1 Year on all other Parts*  Registration card will be sent with unit, this card should be completed by an HVAC technician (installer).  Installation of a mini split must be completed by a licensed HVAC (Heating, ventilating, & air conditioning) company to ensure any issues encountered in the future are not due to improper installation / workmanship.  Even though mini split setup is below the expertise requirements of central AC systems, these are not "plug-n-play" units that can be properly installed without certain tools any prior HVAC - electrical knowledge.   The installation includes electrical, gas, and refrigerant connections and generally regulated by a multiple sets of laws, codes and guidelines, at the federal, state and local levels. The failure to properly install HVAC equipment can raise personal safety and performance concerns. Warranty service - troubleshooting is provided through the contractor / installer and will be upheld as long as policies are observed.  Once a non-defective unit is installed by a HVAC company, chances of anything going wrong are very slim and almost all contractors will guarantee there workmanship and provide future service free of charge (installation warranty).  If it was determined that the unit is not functioning due to a defect and needs to be replaced, the part will be sent free of charge up to 1 year from date of purchase or 5 years for the compressor. If you receive a damaged or defective product, a replacement unit will be sent out Free of cost.  Damaged / Defective product will be picked up and brand new exchange will be shipped out. Download Warranty Polices >
    Available Accessories back to the top

    These Mini Split units usually ship via SAIA Motor Freight (on truck) or some other freight service. These units ship out of Missouri and are in transit with 2 business days from payment receipt.  Depending on where you are geographically located, transit time is usually between 3 and 6 business days.  Please provide a contact phone# upon checkout where recipient of order can be reached.  SOMEBODY MUST BE ON SITE TO ACCEPT / SIGN FOR Order.  Only ships to the lower 48 Contiguous United States.

      Southeastern Freight
    This unit
    Swap 1-12k Cassette for Susp. Ceiling Mount:  (+) $140
    Swap 1-18k Cassette for Susp. Ceiling Mount:  (+) $140
    Swap all Cassettes for Susp. Ceiling Mounts:  (+) $420
    Swap 1-12k Cassette for a for a Wall Mount:  (-) $100
    Swap 1-18k Cassette for a for a Wall Mount:  (-) $120
    Swap both Cassettes for Wall Mounts:  (-) $340 : click
    *If alternate air handler types are preferred, request invoice with preferred options upon checkout or contact us.
    Tri Zone Mini Split Air Conditioner
    Call Thermospace at 855-382-8110
    View the Mini Split FAQ Page >
    View the Installation - Setup Diagram >
    View the Mini Split Overview Page >
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