Row
-DENCO
Overview of Units and Packaged Content
FläktGroup DC-2014-0106-GB 2019-02/R3 • Subject to modifications
11
3.3
Versions
3.3.1 Air-Cooled direct expansions unit – DRX
The DRX series units, with single direct expansion cooling circuit, use air for cooling in
the condensing stage, and are therefore combined with the DROU air-cooled outdoor
condensing units.
Refrigerant circuit – DRX
Unit featuring a refrigerant circuit complete with the following components:
– direct expansion coil
– low pressure switch
– electronic expansion valve
– pressure transducer and temperature probe for electronic valve
– shut-off valves for connection to outdoor unit
– connections available from top or bottom
DROU
Unit supplied pre-charged with refrigerant and factory tested. Unit featuring a refrige-
rant circuit complete with the following components:
– filter-drier
– liquid indicator
– safety pressure switch to control high discharge pressure (manual reset)
– liquid receiver
– external connections with valves
3.3.2 Chilled water unit – DRC
The DRC 020-025-035 units featuring a single chilled water cooling circuit supplied by
a chiller installed on-site, while model DRC 036 has two independent circuits, one pri-
mary and one secondary as backup, both using chilled water (CW) supplied by two
chillers installed on-site.
The unit is supplied with a modulating valve complete with servo motor .
The signal to open and/or close the valve is automatically managed by the electronic
controller, so as to maintain the desired indoor conditions.
The inside air is cooled when flowing through the cooling coil on the
Row
-DENCO.
Water circuit
Unit featuring a refrigerant circuit complete with the following components:
– chilled water coil
– 3-way modulating valve complete with three-position servomotor
– threaded water fittings
– connections available from top or bottom
: Refrigerant piping
: Water piping
Fig. 3-3
Fig. 3-4