Bühler technologies RC 1.2 Rack Kurzanleitung Seite 13

RC 1.2 Rack, RC 1.2+ Rack
DANGER
Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to
mains unintentionally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
DANGER
Potentially explosive atmosphere
Explosion hazard if used in hazardous areas.
The device is not suitable for operation in hazardous areas
with potentially explosive atmospheres.
Do not expose the device to combustible or explosive gas mix-
tures.
DANGER
Toxic, corrosive gas/condensate
Sample gas/condensate may be hazardous to health.
a) If necessary, ensure a safe gas/condensate discharge.
b) Always disconnect the gas supply when performing
maintenance or repairs.
c) Protect yourself from toxic/corrosive gasses/condensate
when performing maintenance. Wear suitable protective
equipment.
d) Do not allow condensate to drip into the housing.
WARNING
Warning: Flammable substances!
The device is filled with flammable refrigerant R600a.
a) Handle with care and choose the installation location
carefully.
b) Do not damage the refrigeration circuit. In the event of
damage:
ð Keep away from open flames or sources of ignition.
ð Ventilate the room for several minutes.
ð Switch off the device.
ð Contact the manufacturer for repair.
ð Do not discharge refrigerant into drains or rooms where
there are open flames or sources of ignition.
CAUTION
Health hazard if the heat exchanger leaks
The heat exchanger is charged with glycol-based coolant.
In the event of a heat exchanger leak:
a) Avoid contact with the skin and eyes.
b) In the event of a leak, do not restart the cooler under any
circumstances The cooler must be repaired by the manu-
facturer.
BX450040 ◦ 07/2025
CAUTION
Hot surface
Risk of burns
The housing can be up to 60 °C during operation.
Allow the unit to cool down before working on it.
3 Transport and storage
The products should only be transported in their original
packaging or a suitable replacement.
Sample gas coolers with flammable refrigerant are marked on
their original packaging and must be stored and transported
in accordance with national regulations.
When not in use, the equipment must be protected from
moisture and heat. It must be stored in a covered, dry and
dust-free room at a temperature of -20 °C to 60 °C (-4 °F to 140
°F).
4 Installation and connection
4.1 Installation site requirements
The device is intended for indoor use, either in a 19" rack-
mount enclosure or for wall mounting. The maximum install-
ation altitude is suitable for elevations up to 2000 m.
Wall mounting: The device must be fixed at the designated
mounting points. Flange through holes: 4 × ø 7 mm.
The device is designed for use with pollution degree 2 and
overvoltage category II. When used outdoors, adequate
weather protection must be provided.
Install the device, leaving enough room below the cooler to
discharge the condensate. There should also be some space
above for gas supply connections. During operation, condens-
ate may form and drip off under unfavourable ambient condi-
tions. Ensure that no moisture-sensitive components or
devices are positioned beneath the device.
Ensure that the permissible ambient temperature is main-
tained. Do not obstruct the convection of the cooler. The vents
must have enough room to the next obstacle. In particular, on
the air outlet side, the distance must be at least 10 cm.
The device is filled with flammable refrigerant R600a.
Sufficient room should be provided around the device to pre-
vent an explosive atmosphere in case of refrigerant leakage.
Alternatively, adequate ventilation should be planned to
avoid accumulation of refrigerant. National legal regulations
must be observed.
Ensure adequate ventilation when installing in enclosed
housings, e.g. analyser cabinets. If the convection is inad-
equate, we recommend aerating the cabinet or installing a
fan to lower the inside temperature.
4.2 Installation
Run the gas supply to the cooler with a downward slope. The
gas inputs are marked in red and additionally labelled "IN".
If a large amount of condensate accumulates, we recommend
using a condensate trap with automatic condensate drain.
Our condensate drains, 11 LD spec., AK 20 V, or model 165 SS,
are suitable.
Bühler Technologies GmbH 13