Marstair CKC Air Cooled Condensing Unit

The CKC range of condensing units replaces the MCU+ models, which have now been discontinued.

Whereas they used to be paired with just CX cellar coolers from the CKC20-80, the CKC has now been extended up to 20 kW thereby offering an alternative for the entire MCU+ range.


This product is not yet available to buy online, to place an order please call 01823 665 660.


Marstair CKC Cellar Cooler Outdoor Unit

Suitable for wall mounting or freestanding, these stylish and slim profile outdoor units are easy to install and include the following features:
  • New 17 Series with smaller, 5mm tube sizes, in the condenser coil, gives reduced refrigerant requirements without compromising the system duty.
  • Capacity range 2.5kW – 19.9kW 
  • Up to 50 & 80m pipe run.
  • Suction and liquid service valves
  • Fan speed head pressure control
  • Low ambient start timer
  • 3-minute delay timer / random start timer
  • Crankcase Heater (reciprocating only)
  • Contactor
  • LP switch (auto)
  • HP switch (auto)
  • Up to 80m pipe runs (Models 15-20 up to 50m)
  • CKC+ 15-40 (Reciprocating compressors)
  • CKC+ 50-200 (Scroll compressors)
If the following capacities aren't sufficient for your project we also offer multi-split systems with capacities up to a nominal 14 kW.

Please note: CKC condensing units are no longer supplied with a refrigerant charge.

APPROXIMATE GUIDE TO CELLAR SIZING IN m3 @ 27°C AMBIENT

ABOVE GROUNDBELOW GROUND
Model8°C12.7°C8°C12.7°C
CX(E) 30 + CKC 2022m331m336m352m3
CX(E) 40 + CKC 3027m339m345m364m3
CX(E) 50 + CKC 5042m360m369m398m3
CX(E) 70 + CKC 8070m3100m3111m3158m3


GUIDE TO COOLING DUTY @ 8°C AND 12.7°C

CELLAR 8°CCELLAR 12.7°CCONNECTIONS
ModelTD (kW)SD (kW)SHRTD (kW)SD (kW)SHRSUCTIONLIQUID
CX(E) 30 + CKC 202.271.700.752.802.100.751/2"3/8"
CX(E) 40 + CKC 302.671.820.683.302.240.681/2"3/8"
CX(E) 50 + CKC 503.732.460.664.603.020.661/2"3/8"
CX(E) 70 + CKC 805.513.470.636.804.300.635/8"1/2"


GUIDE TO CXE LOW-TEMPERATURE CAPACITIES @ 4°C AND 12.7°C

CELLAR 4°CCONNECTIONS
ModelTD (kW)SD (kW)SHRSUCTIONLIQUID
CX(E) 30 + CKC 202.302.000.851/2"3/8"
CX(E) 40 + CKC 303.502.800.801/2"3/8"
CX(E) 50 + CKC 505.003.500.705/8"3/8"

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