21
5 - ELECTRICAL CONNECTIONS
BT3 outside air temperature probe( ductable unit)
SA1 remote ON-OFF
SA2 remote summer - winter
SA3 remote second set
SA4 domestic hot water request
HL1 unit shut-down signal
HL2 unit operating signal
Power supply :
A Delayed fuses power supplì protection
( see the wiring diagram)
5.9 REMOTE SUMMER - WINTER: SA2
The Summer-Winter operating mode can be chosen by
remote selector .
To enable the selector mode change, set the par 21
RemMode = 0* ; the mode can no more be chosen by keypad
because the corresponding button is disabled.
To allow the change by keypad or supervisor par 21
RemMode = 1* (standard configuration).
5.10 REMOTE SECOND SET : SA3
The second setpoint is used to reduce the energy
consumptions (ex. by night or during the absence periods).
It can be enabled both by remote and by keypad ; it is not
necessary to set any parameter .
The value of the second set can be modified by parameters
45 and 46.
5.11 COMPRESSOR DISABLING : EDS
It is possible to disable the compressor by a remote contact .
For example if the double power supply is available (line at
low cost, reduced tariff + line at constant power supply,
normal tariff) the compressor can ne enabled only in the time
bands with a reduced tariff.
In the time bands with a normal tariff, the heating is produced
by the integrative heaters .
* Parameters accessible through the installer password 115).
The access by pwd is reserved to qualified personnel;
The parameters changes may cause malfunctions.
(1)
OFF= domestic hot water not enabled
5.8 REMOTE ON/OFF: SA1
It allows to activate the unit from a remote control.
Configuration paramenters *
Par.24 Booster-Pumpe
= 0 not present
= 1 on call by HID-H1 set as room chronothermostat
= 2 in function of BT6 storage temperature
Par.25 configure remote input
= 1 ON / OFF
(1)
= 0 thermal request from ambient
XC2
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