3516526A02 Ed. 01
8
Installation of the probes
To achieve maximum performance from the advanced controller, correct installation of the probes is key as they are
responsible for calculating the evaporator’s thermal transfer coefficient, evaluating the start and end of the defrosts
and diagnosing problems in the evaporator.
Material included
• One 4 mm hermetic evaporator probe, 1.5 m of cable.
• Two NTC probes, 1.5 m of cable
• Mounting clips for 10-13 / 14-18 / 19-21 / 22-25 mm coil
Location of the ambient probe
The probe should be located in a place that does not directly receive the flow of cold air from the evaporator. Pref-
erably in its air aspiration area.
Location of the evaporator probe
The probe must be located as near as possible to the inlet of refrigerant from the evaporator (close to the expansion
valve) in the finned area.
In certain evaporators, for example cubic ones, this inlet may be located on the front part of the battery, just behind
the fan.
If defrost is done by electric heat, the probe must be located far away from them and, if possible, in the area of the
evaporator where defrosting is slower, in other words, in the last area to defrost.
If the two conditions are not possible, the best possible compromise must be looked for.
Select the appropriate clip de-
pending on the size of its evap-
orator pipe.
Attach the probe to the pipe
using the clip, making sure that
its end is in direct contact with
the tube.
Bend the fins of both ends of the
probe to increase the fixing and
contact surface.
Summary of Contents for 16526A
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