21,000 BTU Ductless Mini-Split Wall-Mounted Cool Only Air Conditioner (Indoor Unit) Zoom

21,000 BTU Ductless Mini-Split Wall-Mounted Cool Only Air Conditioner (Indoor Unit)


Brand: Panasonic

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Product Type: Indoor Unit
Application: Cooling
Cooling Capacity (BTU): 21000
Indoor Dimensions (H x W x D): 11-23/32" x 41-15/16" x 8-19/32"
Fan Speeds: 5 Speeds/ Auto
Remote Control: Wireless
Weight (lbs): 26.5 lbs.
Features: 24-Hour Programmable
Program Timer
Modes: Cooling
Power Supply: 230/208V
Modes: Quiet Mode
Refrigerant Pipe Type: Flare
Max. Elevation (ft.): 50'
Max. Pipe Length (ft.): 131'
Suction Line: 5/8"
Liquid Line: 1/4"
SEER: 17

Description for Panasonic CS-S22NKU-1

**Line Set Not Included. This is an indoor unit only. Outdoor unit (CU-S22NKU-1) must be purchased separately.

The Indoor unit, also known as the evaporator, is mounted inside the room, enclosed in a handsome space saving cabinet. It is connected to the outdoor unit, known as the condenser, via refrigerant lines & inter-unit wiring through a 3-1/2" opening in the wall. Since no ductwork is required, installation is simple, fast & efficient. The indoor unit has been uniquely designed to provide Whisper Quiet operation while delivering comfort throughout the room(s).

Panasonic offers wall mounted air conditioners and heat pumps with the utmost in versatility in solving your cooling and heating needs. With the ability to increase efficiencies and provide low energy consumption you will be saving energy costs annually while enjoying a comfortable environment.


  • Low Ambient Operation
  • Automatic Restart Function after Power Failure allows the system to automatically resume operation at its preset program, after power is restored from a power failure.
  • Microprocessor-Controlled Operation: ensures that the temperature and humidity levels in the room are always comfortable.
  • Self-Diagnosing Function- By coupling compressor and fan operation, intermittent operation can be precisely controlled according to room temperature, so that air is efficiently dehumidified.
  • Louver Control- can be manually set to the desired angle by remote control.
  • Self-Diagnosing Function- Details of previous warnings are stored and can be verified on the liquid crystal display making it easier to diagnose malfunctions, greatly reducing service labor.
  • Blue Fin Condenser- Condensers can take a beating from exposure to salty air, rain and other corrosive factors. Panasonic has tripled the life of our condensers with an original anti-rust coating.
  • Electric Refrigerant Control Valve - The circulation volume of the refrigerant is controlled by a pulse type electric control valve. In order to attain optimum efficiency, when the power is switched ON, the opening degree of the electric control valve is controlled between 90 and 480 steps.
  • 21,000 BTU Ductless Mini-Split Wall-Mounted Cool Only Air Conditioner (Indoor Unit)

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    Displaying question 1
    • Q:

      Hello. I work in a museum which has no air conditioning whatsoever and we thought that it would be perfect to just buy several of these wall split air conditioners. Is it really as simple as just hanging this model on the wall and plugging it into an outlet, or will I have to make holes in the wall to make ventilation or to run cords/tubes outside?
      Asked on 7/9/2012 by Jim from Cape Cod MA

      1 answer



        Mini-split models are more complicated than they may appear initially. Each indoor unit must be connected to a unit outside. Learn more about mini-splits by watching our video at the link below.


        Answered on 7/18/2012 by PexSupply Staff from NY
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