312
EN
cod. 3541V620 - Rev. 00 - 05/2021
ALHENA TECH H
To use the desired function refer to table 3.
Table 3- Settings LC32
ON/OFF switch configuration (A fig. 28)
Table 4- Switch A setting
2.6 Fume ducts
B
THE BOILERS MUST BE INSTALLED IN ROOMS THAT
MEET THE FUNDAMENTAL VENTILATION REQUIRE-
MENTS. OTHERWISE THERE IS A DANGER OF AS-
PHYXIA 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.
Important
The unit is a “C-type” with sealed chamber and forced draft; the air inlet and fume outlet must be
connected to one of the extraction/suction systems indicated below. Before proceeding with in-
stallation, check and carefully observe the above instructions. Also, comply with the provisions on
the positioning of wall and/or roof terminals and the minimum distances from windows, walls, ven-
tilation openings, etc.
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 hea-
ting circuit is restored to the normal level (after manual or
automatic topping up)
3
Manages a legionella pump
The contacts are closed as long as the anti-legionella protec-
tion 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 present
7
Manages the trap heater
The contacts are closed when the frost protection mode is
active
DHW configuration
Parameter b06
b01 = 2
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.
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