52
Start-up
8.2 Commissioning
l
WARNING
It is necessary to fill in the commissioning
report as a record the of operating status of
the system once the procedure is completed.
l
WARNING
If the combination ratio is less than 100%, start
all the indoor units. If the ratio exceeds 100%,
start all the indoor units with total power equal
to the total power of the outdoor unit.
Carry out the following procedure:
– Open the gas and refrigerant valves of the outdoor
unit;
– start the outdoor unit;
8.3 Automatic addressing procedure for
indoor units (80M to 180T)
Sizes from 80M to 105M have SW3 (2 switch dip). Sizes
from 120M to 160M have SW1 (3 switch dip). Sizes from
120T to 180T have SW7 (SW3) (2 switch dip).
1 Turn o all the outdoor units (ODU) and all the indoor
units;
2 On the ODU, set the SW3 (or SW1) switch to "Revocation
indoor unit network address";
3 Power up all the IDUs and wait at least approx. 20
seconds;
4 Power up the ODUs and wait at least 60 seconds;
5 Disconnect only the ODUs and wait at least 60
seconds;
6 After the time has elapsed, set the SW3 (or SW1)
switch to "Obtain network address automatically" and
then restore power to the outdoor unit;
7 Wait for the addressing operation to be completed:
the operation ends when all the IDUs have the
«operation» LED flashing slowly and (if they have a
display) the two dashes «-» in steady state;
8 Operation concluded.
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