Function test of the cooling and heating modes
1. Remove the protective caps from the valves.
2. Start the commissioning procedure by briefly
opening the shut-of
f valves on the outdoor
unit until the pressure gauge indicates a
pressure of approx. 2 bar.
3. Check all connections for leaks with leak
detection spray and suitable leak detectors.
4. If no leaks are found, fully open the shut-of
f
valves by turning them anti-clockwise using a
spanner. If leaks are found, remedy the faulty
connection. It is imperative that the vacuum
creation and drying steps are repeated.
5. Activate the main circuit breaker or fuse (to
be provided by the customer).
6. Press the test knob on the outdoor unit and
wait until a frequency of min. 50 Hz is estab-
lished.
7. Use the remote control to switch on the unit
and select the cooling mode, maximum fan
speed and lowest target temperature.
8. Check the overheating, outside, inside, outlet
and vaporisation temperatures and record
the measured values in the commissioning
report. Check the correct function and set-
tings of all regulation, control and safety
devices.
9. Check the unit control system using the func-
tions described in the chapter "Operation".
T
imer, temperature setting, fan speeds and
switching to ventilation or dehumidification
mode.
10. Check the correct function of the condensate
drainage by pouring distilled water into the
condensate tray
. A bottle with a spout is rec-
ommended for pouring the water into the
condensation tray.
11. Switch the indoor unit to heating mode.
12. During the test run, check the functionality of
all of the previously described safety devices.
13. Record the measured values into the com-
missioning report and familiarise the operator
with the system.
14. Remove the pressure gauge. Check that
seals have been fitted in the sealing caps.
15. Re-install all disassembled parts.
43
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