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Part No. 30911 Rev. A September 2020
- 24 -
Visair Refrigerated Cabinets
Refrigeration Equipment
cont.
VISAIR CABINETS - SERVICING
Air Ducts and
Grills
All air ducts, grills and louvers must be regularly vacuumed, to keep them free
of dust and fluff.
This is best done after cleaning the condenser radiator
with compressed air.
Grills are located on the top of the cabinet and louvers on
the front bottom panel.
Temperature
Regulator
XR70CX
Model XR70CX is a
microprocessor-
based controller.
It is provided with
four NTC probes.
The first one for
temperature control
(air off), the second
one, located on the evaporator coil, to control the
defrost termination, the third one senses the
temperature of the compressor discharge pipe.
Another probe is connected to the Pb4 input. It is
located at the input side of the evaporator coil, and is used to display the
temperature of air returning from the cabinet interior.
The indicated set-point temperature will be lower than the air temperature inside
the cabinet, because the refrigeration compressor is controlled in response to
the exit air (air off) temperature from the evaporator cooling coils.
The instrument is fully configurable through special parameters that can be
easily programmed through the keyboard.
Dixell
Information
Additional information about the Dixell XR70 can be found at:
http://www.dixell.de/en/Dixell/artikel/11178
webapps.emerson.com › Manuals › PRIME › XR70CX › XR70CX-GB
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