2 | Safety
AHT Cooling Systems GmbH | en-US
38 / 64
370607_2_0718
NOTICE
Material-and property damage due to misuse
▪ Do not exceed ambient conditions shown at the serial plate (see →Serial plate and serial num-
ber) or on the additional labels.
▪ The ambient temperature must not be less than 16 °C (60,8 °F).
▪ Operate the unit in a stable position (horizontal alignment).
▪ Check that the unit is in good condition. Damage must be repaired immediately.
▪ Before storing the goods and during operation, the temperature must be checked for correct-
ness (see →Temperature display).
▪ Stored goods must be checked by the operator in the case of power failure (temperature con-
trol).
▪ Check for foreign objects in the goods area. Incorrectly stored goods must be removed immedi-
ately.
▪ Do not install or store the unit outdoors.
▪ Observe the minimum distances to the boundary walls and to other units to avoid hindering the
air circulation (see →Setup and installation).
▪ Observe installation instruction (see →Setup and installation).
▪ Operation of a unit with a broken glass element (crack, fissure, breakage) is no longer possible.
- Remove goods from the damaged unit and rearrange in a functional unit with the same prod-
uct temperature class.
- Switch off the damaged unit after removing the goods (decommissioning see →Decommis-
sioning).
- Contact the maintenance service (see →Maintenance services).
2.5 Staff requirements
WARNING
Insufficient qualification.
Risk of injury.
▪ All activities may only be performed by properly skilled staff.
▪ The staff must read and understand this manual before starting work.
Operator:
– The operator must ensure that this manual has been read and understood by the operating
staff (training).
– The operator is responsible for the fact that faults during operation (e.g. alarms, temperature
deviations, etc.) are recognized by the operating staff and appropriate measures are taken (see
→Faults in operation and What to do if…).
Operating staff:
– The operating staff must be trained by the operator about the content of this manual (tasks,
possible dangers,…).
– Only trained operating staff are allowed to operate the unit.
Qualified staff:
– Only AHT-authorized, knowledgable qualified staff are allowed to perform work on the unit,
e.g.: servicing (maintenance, service and repair).
– Only staff trained in handling flammable refrigerants may perform work on the refrigerant circuit
of R-290 units.
– Only qualified electricians are permitted to work on the electrical system.
The main cleaning (see →Main cleaning) may only be performed by AHT-authorized and trained
cleaning companies
or
qualified staff
.
Persons (including children) with limited physical, sensory or mental abilities are allowed to operate
the unit only under supervision and after instruction, and must not perform any maintenance work.
Children must not play with the unit.
Working under the influence of alcohol and drugs is prohibited.
2.6 Personal protective equipment
Wear protective gloves
– Protection against heavy unit parts during transport, unpacking, set up and installation and dis-
posal.
– Protection against sharp edges, rotating parts and hot surfaces during maintenance, service
and repair work.
