Setpoint; Semi-Automatic Defrosting; Appliance Lighting; Alarm - AHT GD Serie Betriebsanleitung

5.2.3 | Setpoint

Switch off cooling Press
function
Press
Switch on cooling The actual temperature and
function
the symbol
display after a few seconds.
5.2.3 Setpoint
Display setpoint
Display adjusted
setpoint (temperat-
Press
ure)
Exit setpoint display Press
wait 15 seconds.
Change setpoint
Press
seconds.
Change setpoint
Setpoint appears on the
display and the "°C/°F" symbol
flashes.
Increase setpoint
Press
Decrease setpoint
Press
Press
Accept new entry
wait 15 seconds.

5.2.4 Semi-automatic defrosting

Press
Start semi-auto-
The symbol
matic defrost
display.
Defrost time
– Up to 60 minutes
After semi-automatic defrost, the unit automatically re-
turns to normal operation.

5.2.5 Appliance lighting

Switch on unit light-
The symbol
ing
Switch off unit light-
The symbol
ing
the display.

5.2.6 Alarm

Display alarm
An error code appears on the display as a flashing in-
dication alternating with the internal temperature.
The symbol appears on the display.
Error code Meaning (controller for stand-
32 / 478
for at least 1 second.
appears on the display.
for at least 1 second.
appear on the
.
again or
for at least 3
.
.
or
for at least 2 seconds.
appears on the
press briefly.
appears on the display.
press briefly.
appears on
ard compressor)
Control sensor faulty
Evaporator sensor faulty
Error code Meaning (controller for stand-
Low temperature alarm, interior
Acknowledge alarm
Error code can NOT be acknowledged.
The error code is displayed alternately with the current
temperature until the fault is rectified.
6

Transport and storage

After delivery, check the appliance for transport dam-
age.
In the event of damage, promptly contact the mainten-
ance service (see →Maintenance services).
WARNING
Damage to the refrigerant circuit.
Flammable refrigerant can escape and cause
an explosive gas/air mixture. Fire hazard.
▪ Do not expose the appliance to temperat-
ures higher than 70°C (158°F) during trans-
port and storage.
▪ Ensure good ventilation.
▪ Observe safety notices and warnings for
appliances with flammable refrigerants
(see →Flammable refrigerants).
▪ In the event of damage to the appliance,
promptly contact the maintenance service
(see →Maintenance services).
Transport of the appliances with indus-
trial trucks.
Risk of injury to persons in the event of a colli-
sion.
▪ Observe transport routes for industrial
trucks.
▪ Secure transported goods.
▪ Only trained personnel may operate indus-
trial trucks.
▪ Transport one appliance at a time with the
industrial truck.
NOTICE
Material damage caused by transport and
storage.
▪ Transport and store the appliance in a stable oper-
ating position (horizontal alignment).
▪ If the unit was tilted during transport, wait at least
two hours before starting it up.
▪ On delivery, ensure full accessibility to the installa-
tion point (observe clearance heights, clearance
widths, installation space height, sufficient turning
radii).
▪ Do not store the appliance outdoors.
▪ Storage: Do not stack the appliance.
AHT Cooling Systems GmbH | en
ard compressor)
High temperature alarm, in-
terior temperature
temperature
Parameter change required
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