en | AHT Cooling Systems GmbH
Operating personnel
– The operator must train the operating personnel
on the contents of this manual (tasks, possible
dangers, ...).
– Only trained operating personnel may operate and
clean the appliance.
Specialists
– Only qualified staff authorised by AHT may carry
out the following work on the appliance:
– Main cleaning
– Maintenance, service, and repairs
– Only specialists trained in flammable refrigerants
may work on the refrigerant circuit of R-290 units.
– Only qualified electricians may carry out work on
the electrical system.
Persons (including children) with limited physical,
sensory, or mental abilities may only operate the appli-
ance under supervision and after training, and may not
carry out any maintenance work. Children must not
play with the appliance.
Work under the influence of alcohol and drugs is pro-
hibited.
2.4
Personal protective equipment
Use hand protection
– Protection against heavy equipment parts during
transport, unpacking, installation and disposal.
– Protection against sharp edges, rotating parts and
hot surfaces during maintenance and repair work.
– Protection against contact with liquid/leaking refri-
gerant in case of leakage of the refrigerant circuit.
– Protection against low temperature during loading
and cleaning.
– For removing glass parts and glass splinters in the
event of glass breakage.
– For the removal of parts in the event of material
breakage.
Use eye protection
– Protection against contact with liquid/leaking refri-
gerant in case of leakage of the refrigerant circuit.
2.5
Specific hazards
2.5.1 Electrical voltage
Only qualified staff may carry out work on the electrical
system.
In case of fault messages or damage to the device,
contact maintenance service (see →Maintenance ser-
vices).
409654_1_0120
Personal protective equipment | 2.4
WARNING
Contact with live parts may result in
electric shock.
Fire hazard due to sparking or overload.
▪ Do not connect a damaged device or dam-
aged parts (such as connecting cables) to
the power supply.
▪ Check to ensure safety devices are com-
plete and working.
▪ Do not remove protective devices and cov-
ers attached to the appliance.
▪ Before connecting to the power supply, ob-
serve the following:
- Applicable local electrical safety regula-
tions.
- Applicable standards and safety instruc-
tions.
- Information on the rating plate (see →
Rating plate and serial number).
- Mains voltage and mains frequency must
match the information on the rating plate.
▪ Only previously trained staff may cut power
of the device.
▪ Observe the following safety rules if the ap-
pliance is damaged during operation or
prior to maintenance:
1. Disconnect the appliance (switch off all
sources of electrical power).
2. Secure the appliance against reconnec-
tion.
▪ Only qualified staff may replace damaged
parts, e. g:
- Connecting cables
- Lights (see →Replacing lights)
▪ Do not squeeze or bend the mains power
cable.
▪ Do not use extension cords or multiple
socket strips.
▪ Do not use steam or high-pressure clean-
ers for basic cleaning.
▪ Do not damage concealed electrical parts.
The operator must not drill into the appli-
ance or carry out any other work on it.
2.5.2 Refrigerant circuit
Only qualified personnel may carry out work on the re-
frigerant circuit.
In case of fault messages or damage to the device,
contact maintenance service (see →Maintenance ser-
vices).
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