ALHENA TECH H
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. 66.
To use the desired function refer to table 3.
Table 3- Settings LC32
Parameter b07 Function LC32
Manages a secondary gas valve (default)
0
Use as an alarm output (warning light
1
comes on)
Manages a water filling valve
2
Manages a legionella pump
3
Manages a second heating pump
4
Use as an alarm output (warning light goes
5
off)
Indicates ignition of the burner
6
Manages the trap heater
7
ON/OFF switch configuration (A fig. 29)
Table 4- Switch A setting
DHW configuration
b01 = 2
2.6 Fume ducts
THE BOILERS MUST BE INSTALLED IN ROOMS THAT
B
MEET THE FUNDAMENTAL VENTILATION REQUIRE-
MENTS. OTHERWISE THERE IS A DANGER OF
ASPHYXIA OR POISONING.
READ THE INSTALLATION AND MAINTENANCE IN-
STRUCTIONS BEFORE INSTALLING THE UNIT.
ALSO RESPECT THE DESIGN INSTRUCTIONS.
IN CASE OF PRESSURES EXCEEDING 200 Pa INSIDE
THE FUME EXHAUST PIPES, THE USE OF CLASS
"H1" FLUES IS MANDATORY.
EN
Parameter b06
Contact open disables DHW and re-enables it if closed.
b06=0
Contact open disables heating and displays F50. Contact closed enables
b06=1
heating.
The contact acts as a room thermostat.
b06=2
Contact open displays F51 and the boiler continues to operate.
b06=3
It is used as an alarm.
The contact acts as a limit thermostat, if open it displays F53 and turns off
b06=4
the request.
cod. 3541V622 - Rev 00 - 05/2022
Action LC32
The contacts are closed when the gas valve (in
the boiler) is powered
The contacts are closed when there is an error
condition (generic)
The contacts are closed until the water pressure
in the heating circuit is restored to the normal
level (after manual or automatic topping up)
The contacts are closed as long as the anti-
legionella protection is active.
The contacts are closed when the heating mode
is active
The contacts are opened when there is an error
condition (generic)
The contacts are closed when the flame is
present
The contacts are closed when the frost protection
mode is active
323