11 | Maintenance
Material breakage.
Falling hazard. Impact hazard due to the pos-
sibility of falling goods. Cuts.
§ Do not climb onto or into the appliance.
Low temperature.
Frostbite to skin.
§ Wear protective gloves when cleaning.
Safety when handling glass [see } Chapter 2.5.3].
11.1.1 Basic cleaning
Responsibility
– Operating personnel
Cleaning interval
– As required
Inspection tasks by operating personnel
– [see } Chapter 11]
Cleaning agents and equipment
All cleaning equipment must be clean.
NOTICE
Material damage due to use of incorrect
cleaning agent.
§ Do not use abrasive, chemically aggressive, or
easily flammable cleaning agents, e.g. descaling
agents, degreasing agents, solvents (alcohols,
acetone, etc.), ammonia or chlorine-containing
cleaning agents.
§ Do not use any cleaning agents that contain oil or
silicone.
§ Do not use any alkaline detergents or acids.
Material damage due to use of incorrect
cleaning equipment.
§ Do not use hard, pointed objects such as steel
blades.
§ Do not use hard, coarse cleaning equipment such
as steel wool or paper towels.
§ Glass surfaces: Do not use microfibre cloths.
§ Glass surfaces: Do not use glass pullers (squee-
gees with rubber lips).
§ Glass surfaces: Do not use absorbent sponge
cloths or sponges.
Material damage due to incorrect cleaning
§ No cleaning agent residues may remain on plastic
surfaces and seals.
§ Always subsequently clean plastic surfaces and
seals with clean water.
§ During cleaning, do not rub internal glass surfaces
strongly.
Cleaning agent
Unit outside
52 / 220
Cleaning device
Cleaning agent
– Clean water (neutral
pH value, low water
hardness)
– pH-neutral cleaning
agents diluted with
water
Glass surface exterior
– Clean water (neutral
pH value, low water
hardness)
– pH-neutral cleaning
agents diluted with
water
– Commercially avail-
able glass cleaners
Drying
– Lightly moistened, soft cotton cloth
Cleaning steps
Cleaning steps during operation
Exterior
NOTICE
Material damage due to use of too much
cleaning agent.
§ Avoid penetration of fluids via the foot panel.
§ Use only cleaning equipment moistened with
cleaning agent.
Fig. 14: Foot panel (1)
a) Clean the outside of the appliance surfaces.
b) Clean the outside of the glass surfaces.
Safety when handling glass [see } Chapter 2.5.3].
c) Dry all cleaned parts and surfaces.
d) Clean the floor around the appliance
Interior
a) Move the goods to another appliance with the
same product temperature class.
b) Carry out cleaning quickly. Only open doors
briefly.
c) Open the door at an opening angle of 90°.
NOTICE
Material damage if hard clothing parts (rivets,
buttons, etc.) come into contact with
internal glass surfaces.
AHT Cooling Systems GmbH | en
Cleaning device
– Moist, soft cotton cloth
– Moist suction cloth
– Moist sponge
– Moist, soft cotton cloth
– Moist chamois leather
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