59
UNT-SVX10G-E4
Periodic maintenance
It is recommended to carry out the
following maintenance procedures
at the stipulated frequencies to
ensure the unit operates correctly.
WARNING! Disconnect the unit's
power supply before removing the
fan coil casing and servicing the
unit.
Monthly maintenance
1/ Filter
Inspect the filter. If necessary clean
it or replace it.
Note: The first time you start up the
unit, you must check the filters after
one week of operation. The filters
are likely to be heavily clogged
because of the jobsite dust. It is
recommended to procure a set of
new filters. Recommendation to
change it 1to 6 times per year,
depending on the environment.
2/ Protect against freeze-up
If the units are to be exposed to
temperatures below 0°C, take the
necessary precautions to avoid
freeze-up of the components.
Annual maintenance
Use random sampling of the units
installed in the building (between 3
and 5%) to check:
1) the state of cleanliness of the
condensate trays.
2) the condensates flow correctly
(use a water spray).
3) the condensate pumps are
operating correctly. Check the
condensate pump filters by
sampling and replace them if
necessary.
4) there is no air in the coils' water
circuit.
End of hot season
To remove any impurities that have
been accumulated in the unit's main
tray, it is recommended to wash it
with fresh water at the end of the
hot season (e.g. with a water spray).
Venting and draining the coil (if
necessary)
1 To vent the coil, use the vent
located at the top of the header (see
figure 11, detail C,D and E).
2) To drain the coil, isolate it from
the water network and use the drain
located at the bottom of the header
(see Figure 11, detail C,D and E).
Motor safety
Since the motors are equipped with
a thermal protection comprising
automatic reset, if a prolonged
shutdown occurs you must search
for the cause.
Maintenance
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