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    Ducted The DCU+ air conditioning condensign units are designed for sitting indoors with the outdoor air being ducted unto and out of the building.

    Ducted units are particularly suited to visually sensitive applications or where local planning regulations exclude equipment mounted on the outside of buildings.

    The DCU+ condensing units are fitted with centrifugal fans and are available in cooling duties 2.6 – 6.9kW. They complement the existing range of Marstair evaporators, or alternatively for bespoke applications.


    • 2.5 - 6.6kW nominal cooling duty
    • Suitable for ducted indoor applications
    • Reciprocating compressors
    • Suction and liquid service valves
    • Fan speed head pressure control
    • Crankcase Heater
    • Contactor
    • LP switch (auto) & HP switch (auto)
    • 3 minute delay timer
    • Easy access for installation and service
    • Random start timer
    • Low ambient start timer
    • Expansion device (orifice)
    • Ducted air inlet and/or discharge
    • Compressor Jacket
    • CSR 1 Phase
    • Overload on 1 Phase (standard on 3Ph)
    • Volt free relay / HP switch (with alarm output)