AHT AC-S NAM Betriebsanleitung Seite 40

2 | Safety
The refrigerant is highly flammable. If leaks occur, the refrigerant can escape and
create an explosive gas/air mixture.
This can lead to fire and explosion with subsequent fire risk.
▪ The refrigerant R-290 (propane) belongs to safety group A3 according to ASHRAE 34. The re-
frigerant used and the fill quantity are indicated on the power rating plate (see →Serial plate
and serial number).
▪ Keep away from ignition sources (heat, sparks, open flames, hot surfaces).
▪ To remove condensation and for cleaning, use a damp cloth or sponge. Do not use dry clothes
or sponges for rubbing dry. (Danger of electrostatic charging and sparking).
▪ Do not close the air vents in the unit housing. Use only original accessories.
▪ To accelerate the defrosting process, do not use any mechanical devices or other means (e.g.
ice scrapers).
▪ Do not operate any electrical devices (e.g. wet vacuum cleaners) within the refrigerator com-
partment that are not of the type recommended by the manufacturer. Devices with explosion
protection markings (see →Explanation of symbols) are permitted.
▪ Steam or high-pressure cleaners may not be used for basic cleaning.
▪ The unit must only be installed in well-ventilated areas.
▪ Do not install the unit in basements or lowered areas.
▪ Ducts and wall penetrations must be sealed close to the unit in accordance with fire protection
laws.
▪ Do not damage the refrigerant circuit.
▪ Do not expose the unit during storage and transport to temperatures higher than 70 °C (158
°F).
▪ Avoid transmission of pulsations and vibrations to the unit.
▪ Avoid external force upon the unit such as careless movements with forklift trucks or floor
cleaning machines.
▪ Drilling or other work on the unit is not permitted.
▪ Do not squeeze or bend pipes.
▪ Work on the refrigerant circuit may only be performed by qualified staff.
▪ Opening the refrigerant circuit and suctioning of the refrigerant may only be performed in a well
ventilated area outside of business hours of the market (without customer traffic) or outdoors.
▪ Disconnect the unit before each maintenance/service/repair (see →Decommissioning). Secure
the unit against restarting.
▪ During repairs, a knowledgeable person who knows the local conditions must be available, as
the contact person, for the authorized AHT experts.
Fluid refrigerant.
Frostbite on the skin.
▪ Wear eye protection and protective gloves.
▪ Protect hands and face from contact with fluid/leaking refrigerant.
Dispose of units with flammable refrigerant and units with insulating foam (thermal insulation
polyurethane foam with pentane) appropriately. Inquire with the responsible authorities about the
safety and statutory disposal regulations applicable to you.
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AHT Cooling Systems GmbH | en-US
WARNING
CAUTION
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