Alarm; Appliance Lighting Switch; Transport And Storage - AHT MACAO Serie Manual De Instrucciones

en | AHT Cooling Systems GmbH
Bus address must not be assigned twice. We therefore
recommend that you enter the addresses according to
the actual wiring sequence. A maximum of 247 ad-
dresses are possible.
Access programming level
–
Press
1.
appears on the display.
The cooling function is now switched off.
–
Immediately thereafter, briefly press
3 times in succession.
2.
appears on the display alternately with
the current bus address, e.g. "1".
Assign bus address
–
Assign the next highest bus address (indi-
vidual step):
3. Briefly press
–
Quick run through the bus addresses:
keep pressed.
–
Use new entry:
4. wait 5 s.
appears on the display.
NOTICE
Property damage on assigning bus addresses
due to deactivation of cooling function.
After assigning the bus address, switch the cooling
function back on (see → Point 5).
Switch the cooling function back on.
Press
5.
The interior temperature appears on the dis-
play.
Assign bus addresses for further devices:
Repeat points 1 to 5 on each appliance and select an
available bus address.

5.2.5 Alarm

Display alarm
An error code appears on the display as a flashing in-
dication alternating with the internal temperature. The
red dot is illuminated on the display at the same time
(see → page 11, chapter 5.2).
As an option, depending on the appliance, it is possible to
output an acoustic alarm by means of a built-in buzzer.
Error code
405859_1_0819
for at least 3 seconds.
.
for at least 3 seconds.
Meaning
Sensor F1
Sensor F2
Sensor F4
Time/date error
Overtemperature alarm
Overtemperature at F4
Error code
Compressor error due to E75
Frequency outside tolerance
No communication with display
Acknowledge alarm
Acknowledge the
acoustic alarm and Briefly press
error code
The interior temperature and the red dot appear on
the display. The red dot (see → page 11, chapter 5.2)
illuminates until the error has been rectified.
Briefly press
The error code is shown on the
Call error code to
display for approx. 5 s.
check
The interior temperature is then
shown again.

5.3 Appliance lighting switch

Fig. 4: Appliance lighting switch (1)
Switch on the appli-
Press the switch (1).
ance lighting
Switch off the appli-
Press the switch (1).
ance lighting

6 Transport and storage

After delivery, check the appliance for transport dam-
age.
In the event of damage, promptly contact the mainte-
nance service (see → Maintenance services).
Transport and storage | 6
Meaning
Low temperature alarm
Temperature logger alarm
Electronic error
Electronic overtemperature
Compressor error
Voltage outside tolerance
Electronics in test mode
.
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