REMKO KWL 130, Operation Manual

Page: 25 / 48

Improperly installed or missing
dirt traps can cause fouling of
the plate heat exchanger.
!
CAUTION
External medium reservoir
If, for example, the necessary
capacity of the cold water outlet is
significantly less than the cooling
capacity generated by the chiller,
an increase in the medium content
is recommended. As an example,
the medium piping can be over-
sized or an additional reservoir
installed to increase compressor
operating time.
A reservoir should, as a rule, be
provided if the minimum medium
volume is not reached.
Condensate connection
If the temperature falls below the
dew point, condensation will form
on the finned condenser during
heating operation .
A condensate pan should be in-
stalled on the underside of the unit
to drain any condensate.
■
The condensate line to be in-
stalled on-site must be installed
with a pitch of at least 2 %.
If necessary, fit vapour diffusion
tight insulation.
■
When operating the unit at
outdoor temperatures below
4 °C, care must be taken that
the condensate line is anti-
freeze protected. The lower part
of the housing and condensate
pan is also to be kept frost free
in order to ensure permanent
draining of the condensate.
If necessary, fit supplementary
pipe heating.
■
After completed installation,
check that the condensate run
off is unobstructed and ensure
that the line is durably leak
tight.
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Condensate drain
Condensation tray
Condensate drain
Cumulative ice formation in
the lower part of the finned
heated exchanger can develop
under certain weather con-
ditions. To prevent this ice
formation, we recommend
keeping the heat exchanger
frost free on both sides using
a heating band for example.
NOTE
Malfunctions can result if the
minimum medium volume is
undercut.
NOTE
Fill and drain connection
A connection should be provided
in an area safe from frost for the
draining of the pipe lines (especial-
ly if water is used as a medium).
Applicable local disposal regula-
tions must be observed if glycol is
used.
Dirt trap
A self cleaning dirt trap must be
installed on the intake side of the
unit. The mesh size should not be
less than 10 mesh/cm². Shutoff
valves should be installed on both
sides of the dirt trap.
Condensate draining and
ensured discharge
Ensured discharge in the event of
leakage
Local regulations or environmen-
tal laws, for example the German
Water Resource Law (WHG), can
require suitable precautions to pro-
tect against uncontrolled draining
in case of leakage to provide for
safe disposal of escaping refrigera-
tor oil or hazardous media.
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