FläktGroup Multi-DENCO - DENCO-Officecool

Overview of Units and Scope of Supply Multi-DENCO
10 FläktGroup DC-2013-0101-GB • Subject to modifications • R5-08/2020
W-Version – Refrigerant based cooling with water based heat rejection
– A WaterCool module containing a Brazed Plate Heat Exchanger (BPHE)
– R410A used as standard
– Inverter compressors fitted as standard (fitted in indoor unit)
– Electronic expansion valve fitted as standard (fitted in indoor unit)
P-Version – Energy saving Free-Cooling with additional / backup refrigerant circuit into water
based heat rejection
– R410A used as standard
– Available for sizes 030 to 065
– An underfloor WaterCool module containing a Shell & Tube heat exchanger
– Inverter compressors fitted as standard (fitted in indoor unit)
– Electronic expansion valve fitted as standard (fitted in indoor unit)
– FreeCool / WaterCool water pump fitted in the underfloor WaterCool module
– Drycooler for outdoor heat rejection
CombiCool Circuit
(Optional)
The A, C and W-Versions units can be upgraded to have inbuilt redundancy. A unit with
a CombiCool Circuit, consists of a primary and a secondary circuit. The primary circuit
will be a chilled water cooling circuit. When parameters leave the allowable boundaries
(e.g. chilled water inlet temperatures are too high) then the primary circuit will stop and
the secondary circuit will be activated (e.g. for the A-Version: the DX circuit starts)
to continue the cooling process. A CombiCool coil can also be used in a FreeCool strat-
egy.
1.4 DENCO-OfficeCool
DENCO-OfficeCool is a separate version of the Multi-DENCO design and custom-
made for use in an office environment or similar requiring comfort cooling. The units
consist of one Zone unit to many Local Environmental Control Units (LECUs) to give
temperature control through a raised floor.
Typically, DENCO-OfficeCool units are in downflow air configuration, but Upflow units
can be used with a 'top side down duct'. This can be referred to as 'Underfloor Air Con-
ditioning'.
O-Version – Water based cooling
– Can operate with Glycol
– A method of heat rejection separate to Zone unit (e.g. Chiller)
– Can be provided with 3-way or 2-way valves and a variety of actuators
– Available for sizes 018 to 045
– Acoustic insulation and slower fan speeds
H-Version – R410A used as standard
– Available for sizes 018 to 045
– Inverter compressors as standard (fitted in outdoor unit)
– Acoustic insulation and slower fan speeds
– Heat pump options available