GB.COOLDXS.INS.100507
www.swegon.com
3
We reserve the right to alter specifi cations.
Condenser fans
The cooling unit is equipped with 1-3 condenser fans of
axial type on the hot side. Size 40 capacity variant 2 and
up to size 80 capacity variant 1 have two condenser fans,
size 80 capacity variant 2 has three condenser fans. All
other sizes/capacity variants are equipped with one con-
denser fan.
Condenser fans suck air from the surroundings through
the condenser coils and discharge it upwards.
Condenser fans are equipped with variable speed regula-
tion.
Refrigerant
The cooling unit has one refrigerant circuit. Type R410A
(HFC) refrigerant is used. The refrigerant circuit is charged
with refrigerant on delivery. This type of refrigerant has
no infl uence on the ozone layer.
Refrigerant volume
See section 10 General technical data.
Reporting obligation
The client/user is obligated to fi le a report with the local
inspectorate if the total refrigeration volume is more than
10 kg.
Periodic inspection
If the volumetric weight of the refrigerant in the cooling
unit is more than 3 kg, periodic inspection by an accredit-
ed inspectorate is required. Periodic checks should be car-
ried out every sixth month for the COOL DXS size 60 units,
capacity variants 1 and 2, and for the size 80 units, capac-
ity variant 2. For other sizes and capacity variants periodic
inspection should be carried out every twelve months.
Quality System to ISO 9001
and Environmental Management System to ISO
14001
Swegon AB is involved with a certifi ed quality system that
conforms to ISO 9001 standard and a certifi ed Environ-
mental Management System that conforms to ISO 14001.
1. Overview
1.1. General
COOL DXS is a new cooling unit for comfort cooling, to be
used together with Swegon’s GOLD air handling unit.
The cooling unit is available in 12 capacity variants spread
on nine physical sizes, designed for the size 12 - 80 GOLD
air handling units.
The cooling unit should be placed outside.
The cooling unit should be connected to the supply air
duct behind the GOLD air handling unit.
Mechanical design
All the components conform to refrigeration engineering
standards and are pre-wired and collected inside a com-
mon casing.
The casing is composed of profi led frame members, cover
panels and inspection covers. The outside is made of
pre-painted (NCS 2005 Y 30R) galvanised sheet steel. The
interior is made of aluminium-zinc treated sheet steel. The
metal thickness is 1.5 mm. In the lower section, the cover
panels and inspection covers are of a sandwich construc-
tion with intervening expanded polyurethane insulation
(35 mm).
The diagonal air cooler is located in the lower section. A
droplet separator with aluminium fi ns is available as ac-
cessory. Double condenser coils are located in the upper
section. The condenser and cooling coils are fabricated of
copper tubing and profi led aluminium fi ns; the casing is
made of galvanized sheet steel.
In the upper section, there is an electrical equipment cubi-
cle containing all electrical and control equipment.
All the equipment is easily accessible from the front or rear
for servicing and inspections.
The cooling units are test run prior to delivery.
Cooling compressors
The cooling compressors are located in a separate space in
front of the air cooler (seen from the inspection side). The
sight glass and the expansion valve are also located here,
where they are easily accessible for service.
The cooling compressors are totally hermetical of scroll-
type.
The size 60 COOL DXS in capacity variant 2 and the size
80 in capacity variants 1 and 2 are equipped with three
cooling compressors. All other sizes/capacity variants have
two cooling compressors.
Completely direct-acting system
The cooling unit has a completely direct-acting system. It
has an air cooler for direct-evaporative cooling refrigerant
on the cold side and two condenser coils connected in
parallel on the hot side.
