AHT Cooling Systems GmbH
22.05.2018 14:09 Page 39
347163_0917_BA_ AC-COOLER_V8_06.09.2017_U_enUS_CD.docx
Cleaning
Reasons for regular and thorough cleaning (deep
cleaning/main cleaning):
Assurance of the required hygiene.
►Always keep the goods interior in a clean
condition.
Lowest possible energy consumption.
Maintenance of trouble-free operation.
Extension of the life of the device.
Damage to the electrical system and
refrigerant circuit by using steam and
high-pressure cleaners. Contact with
live parts may cause electric shock.
For devices of type R-290: The
refrigerant can escape and create an
explosive gas/air mixture. Risk of fire
due to sparks or overloading.
►For basic cleaning, do not use
steam and high-pressure cleaners (→
see Chapter 1.6.2.1).
►For the main cleaning, refer to the
special cleaning manual.
For devices of type R-290:
Electrostatic discharge and sparking
with flammable refrigerant. Sparks
can ignite the leaking refrigerant when
the refrigerant circuit is damaged/not
sealed. Risk of fire.
►To remove condensation and for
cleaning, use a slightly damp cloth or
sponge.
►Do not use dry cloths or sponges to
wipe dry (risk of electrostatic charging
and sparking).
►Do not operate any electrical
devices (e.g. wet vacuum cleaners)
within the refrigerator compartment
that are not of the type recommended
by the manufacturer. Devices with
explosion protection markings (see →
1.2) are permitted.
Cutting injuries in the case of
material breakage.
Danger of falling.
Impact hazard due to the risk of
falling goods.
►Do not climb onto or into the
device during cleaning.
For the safe handling of glass, see → Chapter 1.6.3.
For cleaning, wear protective gloves.
Basic cleaning
Responsibility:
Operating staff
Cleaning interval:
weekly, or as required (see → Chapter 10 “Checking
for contamination”)
Time of cleaning
At any time
Cleaning agent:
Clean water (neutral pH, low water hardness)
In the case of greater contamination:
Slightly alkaline cleaning agent (e.g. neutral soap
and water)
Glass surfaces: Aqueous, neutral and light alkaline
glass cleaner
NOTE
• Material damage due to incorrect cleaning agents.
►Do not use abrasive, chemically aggressive or
easily flammable cleaning agents.
Cleaning devices:
All cleaning devices must be clean.
For cleaning:
Soft cotton cloth, sponge or
microfiber cloth.
For drying:
Soft cotton cloth.
For devices of type R-290: Soft, slightly damp
cotton cloth.
NOTE
• Material damage due to incorrect cleaning devices.
Damage to the surfaces of the device and glass.
►Do not use any hard, sharp objects.
Cleaning steps:
If necessary, move the goods to another device
with the same product temperature class.
Lift and remove the display shelves (including price
display rails).
Clean before reinserting.
For devices with a removable return air intake
grille:
Lift the return air intake grille and pull to the rear
(see → Fig. 6.1).
- Clean the area of the fan in the inner
compartment.
- Clean the return air intake grille and reinsert
correctly.
Fig. 6.1: Removable return air intake grille
Devices with a fixed return air intake grille:
Visual inspection of the area underneath the return
air intake grille (see → Fig. 6.2). Contact the
maintenance service in case of contamination (see
→ Chapter 10.4).
Removable
return air
intake grille
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