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REMKO KWG750 Manual

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■
For the commissioning of the
entire system, the operating
instructions of the unit and all
other components must be
observed.
Commissioning may be
performed by specially trained
expert personnel only and
documented according to the
certificate.
NOTE
Commissioning
Function test of the
cooling mode:
1. Switch on the power supply.
2. Open all shut-off valves if nec-
essary.
3. Switch on the unit and the per-
tinent circulation pump at the
highest power level. The outlet
temperature must lie between
+4 and +18°C.
4. Switch on the unit and select
the cooling mode.
If the return temperature is
warmer than the setting, the
compressor indicator flashes
and the compressor begins
to function after about 3 to 5
minutes.
5. Please note that the inlet flow
temperatures lies about 5 K
below the return temperature
at the nominal volume flow rate
of the medium.
- If the inlet flow temperature
falls below the factory setting
of 4°C, a fault will be indi-
cated.
If this is the case, the return
temperature must be set to
a higher value. If the spread
is too large or too small, the
volume flow rate must be
checked.
- The circulation pump starts up
and the control system checks
the medium volume flow rate
using the differential pressure
monitor.
If the volume is too low, a
fault deactivation will be per-
formed and the cooling circuit
will not obtain an enable.
6. Measure all required values,
enter them in the commission-
ing log, and check the safety
functions.
7. Check the unit control system
with the functions described in
the "Operation" chapter.
Final measures
■
Mount all dismantled parts.
■
Train the plant owner in the
system.
The factory delivery of the
units includes a standard
parameterisation of the power
control.
If necessary, have authorised
specialist personnel perform a
system-specific setting of the
parameters during commis-
sioning.
NOTE
37
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