Refrigerant Circuit - AHT MACAO Serie Manual De Instrucciones

2 | Safety
‐
The mains voltage and mains fre-
quency must match the specifications
on the rating plate.
▪
Only trained operating personnel may
disconnect the appliance.
▪
Observe the following safety rules if
the appliance is damaged during op-
eration or prior to maintenance:
1. Disconnect the appliance (switch off all
sources of electrical power).
2. Secure the appliance against reconnection.
▪
Only qualified staff may replace dam-
aged parts, e. g:
–
Connecting cable
– lights (see → Replacing lights)
▪
Do not squeeze or bend connecting
cables.
▪
Do not use extension cords or multi-
ple socket strips.
▪
Do not use steam or high-pressure
cleaners for basic cleaning.
▪
Do not damage concealed electrical
parts. Do not drill holes in the appli-
ance and do not carry out any other
work on the appliance.

2.5.2 Refrigerant circuit

Only qualified staff may carry out work on the refriger-
ant circuit.
In the event of fault messages or damage to the appli-
ance, contact the maintenance service (see → Mainte-
nance services).
Flammable refrigerants
WARNING
The refrigerant is highly flammable.
If leaks occur, refrigerant can escape
and cause an explosive gas/air mix-
ture.
This can result in fire and explosion with a
subsequent fire risk.
▪
Refrigerant R-290 (propane) is clas-
sified in safety group A3 according to
EN 378-1. The refrigerant used and
the filling quantity can be seen on the
rating plate (see → Rating plate and
serial number).
▪
Keep ignition sources away (heat,
sparks, open flames, hot surfaces).
▪
Use a damp cloth or sponge to re-
move condensation water and for
cleaning. Do not use dry cloths or
sponges to dry the appliance. (Risk
of electrostatic charge and sparking)
▪
Do not obstruct the ventilation open-
ings in the appliance housing. Use
only original accessory parts.
▪
Do not use any mechanical devices
or other means (e.g. ice scrapers) to
accelerate the defrosting process.
▪
Do not operate any electrical devices
(e.g. wet vacuum cleaners) inside
the cooling compartment that do not
correspond to the design recom-
mended by the manufacturer.
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Appliances with explosion protection
markings (see → Explanation of
symbols) are permitted.
▪
Do not use any steam or high-pres-
sure cleaners.
▪
Only install the appliance in well-ven-
tilated rooms.
▪
Do not install the appliance in cellars
or lowered rooms.
▪
Ducts and wall bushings must be
sealed under and behind the unit to
protect against fire.
▪
Do not damage the refrigerant circuit.
▪
Do not expose the appliance to tem-
peratures higher than 70°C (158°F)
during transport and storage.
▪
Avoid transmitting pulsations and vi-
brations to the appliance.
▪
Do not allow external forces to act on
the appliance, e.g. careless handling
with a lift truck or floor cleaning ma-
chine.
▪
Do not drill holes in the appliance
and do not carry out any other work
on the appliance.
▪
Do not crush or bend pipes.
▪
Only qualified staff may carry out
work on the refrigerant circuit.
▪
Only open the refrigerant circuit and
suck off the refrigerant in well-venti-
lated rooms outside store business
hours (when customers are not pre-
sent) or outdoors.
▪
Disconnect the appliance prior to all
maintenance, service, or repair work
(see → Shutdown). Secure the appli-
ance against reconnection.
▪
During the repair a competent person with
knowledge of local conditions must be
available as contact for the qualified staff.
CAUTION
Liquid refrigerant.
Frostbite to skin.
▪
Wear safety goggles and safety
gloves.
▪
Protect hands and face from contact
with liquid/leaking refrigerant.
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