Immergas HERCULES Condensing 26 2 E Manual page 46

Technical Documentation
Comando Amico Remoto
remote control (CAR)
(optional) (see CAR functioning)
IMG BUS connection
(optional)
System pressure switch
(S5)
Button
Button "A"
Button "B"
Button "C"
Button "D"
Flame detection
(E2)
Super CAR
(optional)
STHCkW ed 0409
Inputs.
It sends SUMMER/WINTER selector switch, DHW and CH temperature adjustment
and CH request signals to the board (time, room temperature, error codes, etc...).
It allows the connection of electronic devices, e.g. Immergas zones digital control unit.
When the pressure of the primary circuit is lower than 0.3 bar
remove the power supply to the K3 relay, thus preventing burner
ignition.
It sends the board a signal that allows ignition or boiler stand-by.
It sends a signal to the board that allows boiler functioning in Summer
( ) or Winter ( ) mode.
It sends the board a signal that allows to activate or deactivate the DHW priority func-
tion.
It sends the board a signal that allows to release the integrated P.C.B. after the intervention
of an anomaly or boiler block, signalled with the relative "ERR xx"" error code (see errors
and anomalies list).
In the P.C.B. programming mode it allows to exit the configuration menu.
It sends the P.C.B. a signal that allows to enter the configuration menu and to confirm
the adjustments made.
It is a signal that indicates that the flame has been detected.
It allows the integrated P.C.B. to increase the fan speed after having
limited it during the ignition phase.
It sends the board the signals of the various functioning state, programming setting,
information and reset buttons as well as DHW and CH temperature adjustment signals
and CH request (time, room temperature, error codes, etc...).
Using the Super CAR it is possible to indifferently vary some settings from the boiler con-
trol panel and from the Super CAR control panel, such as: selection of Summer Winter,
DHW comfort status, DHW set point.
44
Technical Documentation
Open =
No pressure
Closed =
Pressure OK
Flame signal =
6 ÷ 15 microA
HERCULES Condensing Export