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Control and display elements
AHT Cooling Systems GmbH | en
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4.1
Automatic defrosting
The unit features automatic defrosting.
The frequency, duration and time of defrosting are
preset.
Defrosting frequency
Every 4 hours
Defrost time
Up to 60 minutes
During automatic defrosting, the following display
screen and symbols appear on the display (se
e →
chapter 5.2).
Display
Symbol
The water produced on defrosting is routed from the
interior of the unit into heated condensation water
trays where it evaporates.
CAUTION
Leakage of condensation water.
Slipping hazard.
Check for puddles in front of and under
the appliance.
Promptly remove leaking condensation
water.
Contact the maintenance service imme-
diately (se
e → chapter 11.3).
During defrosting, a temperature rise may occur in the
interior temperature display.
5
Control and display ele-
ments
5.1
Temperature display
The temperature of the appliance is set at the factory
to ensure compliance with the M-package temperature
class specified by the manufacturer
(se
e → chapter
.
Interior appliance temperature display
Internal appliance temperature display (se
e → chapter
Check of interior temperature
Responsibility
Operating personnel
Frequency
several times daily
5.2
Control element and displays
Keys are available as operating elements, with the fol-
lowing assignments:
Fig. 2: Operating elements
Key
Function
Acknowledge acoustic alarm
Start semi-automatic defrost
Acknowledge acoustic alarm
Display or change setpoint
Accept setpoint adjustment
Acknowledge acoustic alarm
Increase value
Acknowledge acoustic alarm
Decrease value
Acknowledge acoustic alarm
Open night blind/
Switch on device lighting
Close night blind /
Switch off device lighting
Acknowledge acoustic alarm
Fig. 3: Display screens
Display
Meaning
Interior-temperature
Defrosting active
Cooling function active
Defrosting active
Evaporator ventilator active
Night blind closed/
Device lighting off
Alarm