SplitCool DC18
Solar Powered Direct Current Air-Conditioner / Heat Pump

Available Q1 2010

See images from Solar Power International - Anaheim October 2009 1, 2

One reason that all-DC Air Conditioners make the best use of solar power is because there are no losses associated with converting DC power from the solar panels into AC power to run a standard air conditioner. Using standard solar panels which produce native DC power, the SplitCool DC18 DC air conditioner avoids the inefficient addition of an "inverter" that converts solar DC current into AC current. Plus, the SPP brushless permanent magnet motor driver provides a variable frequency drive that allows the system to dynamically adjust its capacity based on conditions.

 
  • Daytime and Night Time Operation
  • Optimized for Solar Air Conditioning
  • Uses Standard Deep-Cycle Batteries
  • Works with Standard PV Panels
 
  • 18000 BTU Capacity
  • Variable Speed BLDC Compressor
  • ALL-DC No Inverter
  • Hi-SEER DC Heat Pump
100% DC = No Inverter = No Wasted Energy
 
picture dc air conditioner indoor unit


dc air conditioner outdoor unit
batteries


The DC18 solar air conditioner has been designed to make the best possible use of costly solar photovoltaic panels. The DC18 can use approximately half of the number of solar panels that would be required by the same capacity standard AC-powered air conditioner of the same max capacity running on solar panels through an inverter. The system is perfect for residential, commercial, telecom, portable classrooms or offices, or remote facilities where conventional or generator power is costly and/or unreliable.

PV oanel picture
 
SplitCool DC18 v.1 DC Air Conditioner / Heat Pump
Max Cooling 18,000 BTU/hr
Max Heating 20,500 Heating
Input Voltage 48 VDC (43.2v to 56 v)
Batteries 12 VDC (min 4) or 6V DC (min 8)
Battery AH (each) 225-395
Weight 165 lbs
Charge Weight 45 oz (2.81 lbs)
Oil Charge 11.83 fl. oz.
Refrigerant R-410a
Compressor Brushless DC (BLDC) Rotary
Low Voltage Disconnect Yes
Sound (outdoor unit) 60 dB max
IDU - Indoor Unit:
Height 12.1"
Width 34.25"
Depth 12.1"
ODU - Outdoor Unit (v1) :
Height 24.8"
Width 38.6"
Depth 13.6"
Features:
* High-SEER BLDC (Brushless DC) permanent magnet motor.
* No Inverter - 100% DC operation
* Variable frequency drive 25hz - 120hz (variable speed)
* Capacity dynamically sized 5,000 BTU-18,000 BTU per hour as needed.
* Solar powered air conditioning requires no AC power.
* Rotary Compressor provides high efficiency  operation and slow start.
* Overnight operation available.
* Innovative control logic saves energy by matching cooling capacity
   to demand.
* Uses min. 4 standard 12v (or 8 6v) deep cycle solar batteries.
* Batteries are configured in series/parallel for 48 volt operation.
* Uses 4 or more standard 200w solar panels.
* Works with external standard solar charge controller.
* Solar panel and battery requirements will vary based on application and
   local sunlight conditions.
* Quiet operation.
* Can be AC-coupled if desired.
* Note - v2 unit (summer 2010) ODU height = 42"


More specifications, drawings

Download SplitCool DC Air Conditioner Brochure

simple dc air condition diagram