Malfunctions During Operation; Maintenance; Cleaning; Basic Cleaning - AHT GD Serie Manual De Instrucciones

10.3 | Malfunctions during operation

10.3 Malfunctions during operation
NOTICE
Material and property damage in the event of
an alarm display.
▪ Move the goods to another appliance with the same
product temperature class.
▪ Contact the maintenance service immediately (see
→Maintenance services).
Display of alarms
There are different types of alarms that indicate mal-
functions during operation.
– Display screen (see → Page 31, Chapter 5)
– Error code
11

Maintenance

Inspection tasks by operating personnel
Control tasks
Proper condition of
appliances
Foreign objects in
goods area
Closed glass doors
Breakage of stored
glass containers
several times
Interior-temperature
Proper loading with
goods
Contamination of
the appliance,
including glass
Food and packaging
residues
Floor (surroundings
of the appliance)
Puddle formation in
front of/under unit
(Condensation Li-
quids from dam-
aged packaging)
WARNING
Electrostatic discharge and sparking
with flammable refrigerant.
Sparks can ignite leaking refrigerant if the re-
frigerant circuit is damaged or leaking. Fire
hazard.
▪ Use a slightly moistened cloth or sponge to
remove condensation.
38 / 478
Frequency See →Sec-
tion
Proper use
ongoing
Operation
Proper use
ongoing
Operation
Proper use
ongoing Mechanical
hazards
Mechanical
ongoing hazards
Operation
Temperature
display
daily
Operation
ongoing Loading
daily Cleaning steps
daily Cleaning steps
daily Cleaning steps
Automatic
defrosting
daily
Mechanical
hazards
▪ Do not use dry cloths or sponges to rub
dry.
▪ Do not operate any electrical devices (e.g.
wet vacuum cleaners) inside the cooling
compartment that do not correspond to the
design recommended by the manufacturer.
Devices with explosion protection markings
(see → Explanation of symbols) are permit-
ted.

11.1 Cleaning

Reasons for regular and thorough cleaning (basic
cleaning/main cleaning):
– Ensuring the necessary hygiene. Always keep the
goods area in a clean condition.
– Lowest possible energy consumption.
– Maintaining trouble-free operation.
– Extension of the service life of the appliance.
WARNING
Damage to the electrical system and
refrigerant circuit due to the use of
steam and high-pressure cleaners.
Contact with live parts may result in electric
shock.
Flammable refrigerant can escape and cause
an explosive gas/air mixture. Fire hazard due
to sparking or overload.
▪ Do not use steam or high-pressure clean-
ers for basic cleaning.
▪ Follow the instructions for main cleaning.
CAUTION
Material breakage.
Risk of falling. Risk of impact due to the pos-
sibility of products falling. Cutting injuries.
▪ Do not climb onto or into the unit.
Safety in handling glass see →Mechanical hazards
Use protective gloves for cleaning.

11.1.1 Basic cleaning

Responsibility
– Operating personnel
Cleaning interval
– Weekly
– As required
Time of cleaning
– Possible at any time
Cleaning agents and equipment
NOTICE
Material damage due to incorrect cleaning
agents.
▪ Do not use abrasive or chemically aggressive de-
tergents/solvents.
▪ Do not use acids or alkaline detergents.
Material damage due to incorrect cleaning
devices.
▪ Do not use hard, pointed objects such as steel
blades.
AHT Cooling Systems GmbH | en
405861_1_0819