Be sure to check the
association of the electrical
and refrigerant pipes before
commissioning!
The connections of the
individual circuits may not be
mixed up.
Mixing up the assignment of
control lines and refrigerant
pipes can lead to fatal
consequences (compressor
damage)!
Commissioning of the
individual circuits must be
carried out successively.
CAUTION
Function test and test run
Check the following points:
■
Leak tightness of refrigerant
pipes.
■
Compressor and fan running
smoothly.
■
In cooling mode, cold air should
be output by the indoor unit,
and warm air should be output
by the outdoor unit.
■
Functional test of the indoor
unit and all program sequences.
■
Check of the surface
temperature of the suction pipe
and determination of vaporiser
overheating.
To measure the temperature,
hold the thermometer to the
suction pipe and subtract the
boiling point temperature
reading on the pressure
gauge from the measured
temperature.
■
Record the measured
temperatures in the
commissioning report.
Functional test for cooling mode.
1. Remove the protective caps
from the valves.
2. Begin the commissioning
process by briefly opening the
stop valves on the outdoor
unit until the pressure gauge
indicates a pressure of approx.
2 bar.
3. Use leak detection spray or
suitable devices to check that
all the connections are tight. If
no leaks are found, fully open
the stop valves by turning them
anti-clockwise using a spanner.
If leaks were found, draw off
the refrigerant and rework
the defective connection. It
is imperative that the vacuum
creation and drying steps are
repeated!
4. Switch off the main circuit
breaker or remove the fuse
(provided by the customer).
5. Set the target temperature
on the indoor unit using the
remote control. This should be
set to a value lower than the
room temperature.
6. Switch the indoor unit to
cooling mode.
NOTE
Due to the turn on delay, the
compressor will start up a few
minutes later.
8. Check the control system in the
indoor unit using the functions
described in the manual.
Timer, temperature settings and
all mode settings.
9. Check the overheating,
outdoor, indoor, outlet and
vaporisation temperatures and
record the measured values in
the commissioning report.
10. Remove the pressure gauge.
11. Proceed as previously described
for all other refrigerant circuits.
Check that the stop valves
and valve caps are tight after
carrying out any work on the
refrigerant circuit. If neces-
sary, use appropriate sealant
products.
NOTE
Check the individual operating
parameters with the help of
the display on the outdoor
unit as described on page
22 and note the value in the
commissioning protocol.
NOTE
Final tasks
■
Use the remote control to set
the target temperature to the
required value.
■
Re-fit all the dismantled parts.
■
Familiarize the operator with
the system.
7. Check the correct function
and settings of all regulation,
control and safety devices
during the test run.
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