DC 22500 74V DC split air conditioner / heat pump






This split –type 74v dc air conditioner is designed for rolling stock operators cabs on, locomotives, trains and metro's The very efficient air conditioner combines a very low consumption with a high cooling output and is fully dc powered. The cooling duty of this fully DC powered unit is 2-3 higher than a normal AC using with the same cooling and there is no power surge during start up (soft start).  The premium PLC controller gives diagnostics. With our advanced controller remote management is possible# The unit is protected from spikes and surges by an electronic filter.


The 2 indoor evaporators which can be mounted against the ceiling ,wall or floor, are  connected to 1 outdoor condenser with hoses and cables of 6,5  meter length. The hoses can be disconnected and reconnected  from the condenser without losing any refrigerant by means of self-sealing quick connectors. A complete control box including PLC is part of the delivery. Therefore is unit is easy to be installed on new or legacy trains with 74V.


Units are designed to meet :

EN 14813-1-2006 Air conditioning for driving Cabs ; EN 2004/108/EC ; EN 50121-3-2:2006 ; EN 55011: 2007/A2 ; EN 61000-4-2/6  EMC ,EN 61373  vibration and shock resistance for Rolling Stock. EN 45545-2 ; NF F16-101-F2  ; BS 6853 ;DIN 5510/2  Fire Resistance regulations for Rolling Stock  ,  EN 2006/42/EC  Machine Safety regulations. Low voltage directive EN 2006/95/EC.

    • Cooling Capacity 30/35 BTU / Watt
    • 22500 / 6500
    • Heating capacity Watt
    • 3525
    • Airflow in the Cab CFM / M3/h
    • 648 / 1200
    • Power Consumption Watt 100% duty cycle
    • 2220
    • Power Consumption Watt 50% duty cycle
    • 1110
    • Voltage
    • 74 VDC
    • Max allowable temperature Celsius
    • 45
    • Outdoor /indoor noise dB(A)
    • 72 /64
    • Size indoor unit to be installed horizontal or vertical
    • 656W x 423D x 235H (2x) horizontal mount
    • Size outdoor unit
    • 707W x 471D x 510H
    • Size of electrical box
    • 605W x 456H x 118D
    • Refrigerant hose length
    • 6,5 meter –extension kits available
    • Refrigerant
    • R134A
    • Weight kg
    • 85 +20+20 (+ 20 for electrical box)= 145 kg

Instruction video: Opening-closing of the self sealing quick connectors.

DCAirco's self sealing quick connectors specially designed for the pre-filled hoses between the in and outdoor units of the heavy duty split air conditioners. Opening and closing can easily be done (multiple times) by hand, wearing gloves and glasses for safety reasons.

Downloads -

  • DC powered air conditioners railway - rolling stock brochure 2016
  • DCAIRCO DC 22500 24-48-74-110 Vdc 230 400Vac Rolling stock air conditioner data sheet 2016
  • DCAirco - Features of the Premium and advanced controllers V3-2016

Please provide us with your name and e-mail address to download the requested file.

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    Environmentally friendly Air Conditioning

    • Low carbon footprint
    • Low energy use compared to CO2
    • Low operational cost
    • Factory pressure tested with Hydrogen (leak free)
    • Uses refrigerant gas with the minimal environmental impact

    Why our customers select DC Airco Air Conditioning Units for their professional applications:


    • >50% lower fuel/energy consumption
    • No startup peak-soft starting
    • No need of an expensive inverter to powered it.
    • DC unit keeps on cooling in case of power failure/engine off
    • Quality manufacturing since 1997 with extensive testing procedures
    • Easy mount, fully factory assembled charged and tested 
    • Low maintenance and low whole life cost
    • Stock and custom made units
    • Worldwide deliveries

    AC vs DC Air conditioner

    Quick return investment

    Follow this link for more information


    Low power consumption

    Extremely low power consumption with high cooling output!!

    High ambient design

    Specially build for high ambient!

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