AHT Cooling Systems GmbH
page 11
A limited number of semi-automatic defrosts can be
performed (see → chapter 4.2.1.3).
Depending on the setting, individual variations of
interior equipment (air ducts, floor grilles, partition
grilles, standing baskets) are possible.
NOTICE
• Property damage due to missing interior.
►Wall grills must be used in every setting.
►Never operate in refrigerator setting without air
ducts and floor grills.
All units are equipped with load lines (see → chapter
9.1).
All units are classified in the equipment family
horizontal closed transparent (HCT).
Automatic defrost
Triggered by a factory-set time, the unit starts one
defrost cycle per week (during night time).
Defrost cycle stops automatically when ice/frost is
removed (triggered by the internal temperature sensor
or software based max. time out period).
During automatic defrost the display shows “dEF” (see
→ chapter 4.2.1).
The accumulated defrost water is drained to the engine
room and gets evaporated.
Leakage of defrosted water.
Slipping hazard.
►Check for puddle formation in front of
and below the device.
►Remove spilled defrosted water
immediately.
►Contact maintenance services (see →
chapter 10.4) immediately.
4 Operating and display elements
Temperature display
Indication of indoor temperature: (see → chapter
4.2.1).
Indoor temperature check:
Responsibility: operating staff
Frequency: several times a day
Operating panel and display elements
To get to the operating panel, remove the protection
acrylic cover with a screwdriver.
Removal of the protection acrylic cover with a
screwdriver. Stab injury.
►Carefully handling with tool.
►Select the proper size of the screwdriver to
avoid slipping.
►After use
ensure that the screwdriver is kept
neatly and safely.
NOTICE
• Property damage due to incorrect parameter
changes.
►Reinstall protection acrylic cover after operation.
Electronic controller AHT (SECOP)
Three buttons are available as control elements.
Fig.1: Electronic controller
Nr.
Control
element
Function
1 Button [+/-]
Change of setting
(e.g. A1,A2)
2
Semi-automatic defrost
3
Button
[STANDBY
RESET]
Switch on/off refrigeration
function
Error code selection
(when red light is on)
Acknowledge acoustic
Nr. Display Meaning
4
alarm
Switch refrigeration function on/off
Switch off (manual defrost):
Press Button [STANDBY RESET] for at least
3 seconds.
„---“ is shown at the display.
Switch on:
Press Button [STANDBY RESET] for at
least 3 seconds.
At the display the current temperature is
shown.
Setting selection
Available settings (see → chapter 2.2)
Show current setting:
Press button [+/-] briefly.
e.g. „A1“ is shown at the display.
Change setting:
By pressing button [+/-] several times, all
available settings can be addressed.
Confirm shown setting:
Wait 5 seconds.
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