ALHENA C
252
cod. 3540000251 - Rev. 00 - 03/2024
EN
Variable output relay card LC32 (optional - 043011X0)
The variable output relay
LC32
consists of a small card with a switchover of free contacts (closed
means contact between C and NO). Operation is managed by the software.
For installation, carefully follow the instructions provided in the kit package and on the wiring dia-
gram of fig. 60.
To use the desired function, refer to the table 2.
Table 2- Settings LC32
ON/OFF switch configuration (ref. A in fig. 20)
Table 3- Switch A setting
Parameter
b07
Function LC32
Action LC32
0
Manages a secondary gas valve (default)
The contacts are closed when the gas valve (in
the boiler) is powered
1
Use as an alarm output (warning light comes
on)
The contacts are closed when there is an error
condition (generic)
2
Manages a water filling valve
The contacts are closed until the water pressure
in the heating circuit is restored to the normal
level (after a manual filling or from control)
3
Manages a solar 3-way valve
The contacts are closed when the DHW mode is
active
4
Manages a second heating pump
The contacts are closed when the heating mode
is active
5
Use as an alarm output (warning light goes
off)
The contacts are opened when there is an error
condition (generic)
6
Indicates ignition of the burner
The contacts are closed when the flame is pre-
sent
7
Manages the trap heater
The contacts are closed when the frost protection
mode is active
8
Pump management ON-OFF
The contacts are closed when the circulating
pump is running
DHW configura-
tion
Parameter b06
b01 = 3
b06=0
Contact open disables DHW and re-enables it if closed.
b06=1
Contact open disables heating and displays
F50
. Contact closed enables
heating.
b06=2
The contact acts as a room thermostat.
b06=3
Contact open displays
F51
and the boiler continues to operate.
It is used as an alarm.
b06=4
The contact acts as a limit thermostat, if open it displays
F53
and turns off
the request.