AHT Cooling Systems GmbH
page 15
►Never connect more than 2 devices
to a Circuit Breaker (CB). AHT
recommends one device only.
One of the following electrical fuses must be used:
Circuit Breaker (CB) in combination with
Ground Fault Circuit Interrupter (GFCI)
Residual current operated Circuit-Breaker
with Overcurrent protection (RCBO).
Observe the applicable standards such as:
NEC 70
8 Commissioning
The unit must only be commissioned in the intended
installation room and after checking for
completeness. The commissioning of a unit can be
conducted by the operator.
Damage to the electrical system and/or
the refrigerant circuit. Contact with live
parts may cause electric shock. The
refrigerant can escape and create an
explosive gas/air mixture. Risk of fire due
to sparks or overloading.
►Do not commission a damaged device.
►Do not connect damaged parts to the
circuit (such as power cords).
► Damaged parts (such as power cords)
must only be replaced by trained staff.
► Observe the safety and warning signs
for devices with flammable refrigerants
(see → chapter 1.6.2.1).
► If the unit is damaged contact the
maintenance service (see→ chapter 10.4).
NOTICE
• Property damage due to incorrect ambient
conditions
►Adjust the unit to the ambient temperature before
commissioning.
►The ambient temperature must not be less than
16°C (60.8°F).
Plug in the unit-connection cable or unit/light-
connection cable.
The cooling cycle starts working after a short delay of
max. 2 min.
If the operator retrofits a unit with internal LED-
lighting, the light-connection cable must be plugged
in.
Choose desired operating mode see → chapter 4.2.
3-4 hours after commissioning the desired
temperature can be achieved.
9 Operation (use)
Only trained operating staff are allowed to operate
the device.
Damage to the electrical system and/or the
refrigerant circuit during operation. Contact
with live parts may cause electric shock. Risk
of fire due to sparks or overloading.
The refrigerant can escape and create an
explosive gas/air mixture. Risk of fire.
►If the unit is damaged or if the electrical
protection was triggered:
1. Disconnect the unit.
2. Secure the unit against restarting.
3. Contact the maintenance service (see→
chapter 10.4).
►Observe the safety and warning signs for
units with flammable refrigerants (see →
chapter 1.6.2.1).
►Avoid external force to the unit such as
careless movements with floor trucks or floor
cleaning machines.
►Avoid transmission of pulsations and
Cutting injuries in the case of material
breakage. Danger of falling.
►Do not load glass lids.
►Do not climb onto or into the unit.
►Check for damage to the glass elements and
plastics. If the unit is damaged contact the
maintenance service (see→ chapter
10.4).
►Check breakage of glass containers when
operating above 0°C (38°F).
Disposal of broken glass. Cutting injuries to the
hands.
►To remove the glass splinters and the
goods possibly damaged by them, wear
protective gloves
► Remove all glass splinters carefully.
NOTICE
• Material damage due to misuse.
►Operate the unit only in the position of use
(horizontal).
►Operate the unit only with existing stilt/castors.
►Regularly check that the unit is in good condition.
Damage must be repaired immediately.
►Avoid transmission of pulsations and vibrations to
the unit.
►Avoid external force to the device such as
careless movements with forklift or floor cleaning
machines.
• Property damage due to misuse.
►Do not exceed ambient conditions shown at the
serial plate (see → chapter
2.2.1).
►The ambient temperature must not be less than
16°C (60.8°F).
►Operate the unit only with glass lids.
►Check the temperature (see→ chapter 4.1).
►Stored goods must be checked by the operator in
the case of power failure (temperature control).
►Check regularly for foreign objects in the goods
area. Incorrectly stored goods must be removed
immediately.
►Remove food residues, such as spilled liquids
and packaging residues (see → chapter 10.1.1.1).
►Regularly check that the glass doors are closed.
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