Shutdown; Restart; Malfunctions During Operation; Maintenance - AHT Ac Serie Manual De Instrucciones

en | AHT Cooling Systems GmbH
▪ Observe the electrical safety rules prior to
commencing work.
1. Disconnect the appliance.
2. Secure the appliance against reconnec-
tion.

10.2.1 Shutdown

Reasons for shutdown by qualified staff
– Maintenance, service, repair (see →Maintenance,
service, and repairs)
– Main cleaning (see →Main cleaning)
Reasons for shutdown by operating personnel
– Damage to appliance
WARNING
Shutdown of the appliance.
Contact with live parts may result in electric
shock.
▪ Only previously trained staff may cut power
of the device.
▪ Disconnect the appliance and secure it
against reconnection.
Steps for shutdown
– Move the goods to another appliance with the
same product temperature class.
– Disconnect the appliance:
1. Press on the control element (see →
Page 31, Chapter 5).
2. Switch off circuit breakers used with the appliance
and secure them against reconnection (see →Fus-
ing).
3. Switch off the appliance circuit by removing the
mains plug and secure against reconnection (see
→Electrical connection).
Longer shutdown
– Carry out the steps for shutdown.
– Perform basic cleaning (see →Basic cleaning).
NOTICE
Material damage during prolonged shutdown.
▪ Do not expose the appliance to heat radiation.
▪ Do not place anything in or on the appliance.
▪ Store the appliance in a stable operating position
(horizontal alignment).

10.2.2 Restart

See "Start-up" →Start-up.

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.
409654_1_0120
– 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
Damage to glass
element
Breakage of stored
glass containers
several times
Interior-temperature
Proper loading with
goods
Puddle formation in
front of/under unit
(Condensation ,Liqu
ids from damaged
packaging )
Contamination of
the appliance,
including glass
Food and packaging
residues
Visual inspection for
contamination in the
area under the air
intake grille
Floor (surroundings
of the appliance)
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.
▪ 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.
Shutdown | 10.2.1
Frequency See →Sec-
tion
Proper use
ongoing
Operation
Proper use
ongoing
Operation
Mechanical
ongoing hazards
Operation
Mechanical
ongoing hazards
Operation
Temperature
display
daily
Operation
ongoing Loading
Automatic
defrosting
ongoing
Mechanical
hazards
daily Cleaning steps
daily Cleaning steps
daily Cleaning steps
daily Cleaning steps
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