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7 Maintenance
7.1 Cleaning
!
Warning
Before covers are opened, see section 2, Safety instruc-
tions.
Inspect the cooling unit twice a year and clean if neces-
sary. You should inspect it more often if it operates in a
polluted environment.
It may be suffi cient to carefully brush the condenser coils
clean working from the outside, if there is lighter pollu-
tion.
The cover panel on the cooling unit's rear can be disman-
tled by loosening screws, if there is worse pollution. Lift
away the cover panel. The inspection covers of the unit
can be opened by unscrewing the knobs in at the bottom
edge of the cover. Take hold of the cover in the handle
and pull the cover carefully outwards. N.B.! Have a good
grip of the cover so that it will not fall down!
If needed, clean the inside cleaning of the unit by vacuum
cleaning and wiping surfaces with a damp cloth.
Condenser coils/air cooler can be cleaned as follows:
Clean the condenser coils only by carefully blowing with
compressed air, vacuum cleaning with a soft nozzle or wet
cleaning with water and/or solvent.
If cleaning solvent is used, do not use solvent that will
corrode aluminium or copper. Swegon's cleaning agent
is recommended. This cleaning agent is sold by Swegon
Service.
Check in connection with cleaning that the drain pipe of
the air cooler is not clogged.
7.2 Handling of refrigerant
The refrigerant used is R 410A.
The refrigerant circuit is completely charged when the unit
is delivered. No further fi lling is necessary under normal
conditions.
!
Warning
Under no circumstances may the refrigerant circuit be
opened by unauthorised personnel, since it contains gas
under high pressure. Only an accredited refrigeration
company shall be permitted to modify or repair the
refrigeration circuit.
The cooling unit is equipped with a safety valve to
prevent excessively high pressure in the system if the
temperature is high.
We reserve the right to alter specifi cations.
Important
Contact Swegon Service in the event of leakage of
refrigerant.
!
Warning
If refrigerant is exposed to fi re or in some other way
becomes superheated in the atmosphere, poisonous
gases can form.
Important
Filling of refrigerant must be performed in accordance
with the recommendations of the refrigerant manufac-
turer.
Direct contact on skin should be avoided with refrige-
rant.
Use tightly sitting protective glasses, protective gloves
and covering work clothes.
In the event of eye contact
rinse the eyes using an eye-wash shower (alternatiing
with lukewarm water) for 20 minutes. Seek a doctor.
In the event of contact with skin
carefully wash with soap and lukewarm water.
In the event of frostbite
seek a doctor.
7.3 Periodic inspection
Periodic inspection by an accredited cooling fi rm is re-
quired, if refrigerant volume in the cooling unit is more
than 3 kg. A periodic inspection should be carried out
every sixth month for COOL DXS size 60, capacity variant
1 and 2, and for size 80, capacity variant 2. For other sizes
and capacity variants, a periodic inspection should be car-
ried out every twelfth month.
Obligation to report
You are obligated to fi le a report with the local supervisory
authorities only if the total volume of refrigerant charged
in refrigerating units at a given company exceeds 10 kg.
7.4 Service
Only service personnel trained by Swegon should be per-
mitted to modify the cooling unit.
GB.COOLDXS.INS.100507
www.swegon.com
13
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