Notes For Use In Multisplit Systems - Ferroli ASTER User Manual

NOTES FOR USE IN MULTISPLIT SYSTEMS

OPERATION COMPATIBILITY
If operating modes non-compatible with the different indoor units are requested at the same time, the non-compati-
bility will be signalled by the symbol on the indoor unit display. In general, the system ensures the priority to the unit
set to HEAT.
Compatibility table
Table 2 indicates how unit 2 during turning on phase, in case of unit 1 on, can decide whether to turn on or force unit
1 to turn off according to the selected mode.
Operating mode
Cool
Heat
Unit 1 setting
while turned on
Dry
Fan
(1) unit 1 turns off
(2) unit 2 does not turn on
FINDING MODEL
In the case in which they occur in the product of malfunction conditions
associated with an abnormality of an internal unit, this anomaly will be
signaled on the outdoor unit with the indication of the indoor unit code
faulty. You can query the different units to know their code and then know
which of the units is faulty.
To verify this, pointing the remote control at the display unit whilst simul-
taneously holding down the buttons "light" and "▼" (Figure 1). The indoor
unit display will show a number from 1 to 5 corresponding to the number
of the unit.
14
SETTING AND WORK
Unit 2 setting during turning on
Cool Heat
yes no (1)
no (2) yes
yes no (1)
yes no (1)
Dry Fan
yes yes
no (2) no (2)
yes yes
yes yes
Fig . 1