ALHENA C
239
EN
cod. 3540000251 - Rev. 00 - 03/2024
1. Operating instructions
1.1 Introduction
Dear Customer,
ALHENA C is a high-efficiency, low emissions
premix condensing heat generator
with
heat
exchanger in s/steel
and incorporated DHW production, equipped with a microprocessor control
system.
It can use
Natural Gas
(G20),
Liquefied Gas
(G30-G31),
Propane Air
(G230) and, thanks to the
“Hydrogen plug-in”
system, it self adjusts to also work with mixtures of
natural gas and hydro-
gen
(Natural Gas/Hydrogen mixtures 80%/20%), that will soon arrive in Europe to fight global war-
ming.
The sealed chamber unit is suitable for indoor installation or outdoors in a
partially protected pla-
ce
(according to
EN 15502
) with temperatures to -5°C.
1.2 Control panel
fig. 1- Control panel
Panel legend fig. 1
1
DHW temperature setting decrease
button
2
DHW temperature setting increase but-
ton
3
Heating system temperature setting de-
crease button
4
Heating system temperature setting in-
crease button
5
Display
6
"Sliding Temperature” Menu - Reset
button
7
“Winter”, “Summer”, “Unit OFF”, “ECO”,
“COMFORT” mode selection button
8
Eco (Economy) or Comfort mode
9
DHW mode
10
Winter mode
12
Multifunction
13
Heating
14a
Burner lit (flashing during calibration
function and self-diagnosis phases)
14b
Appears when a fault has occurred cau-
sing the unit to shut down. To restore
unit operation, press the
RESET
button
(detail 6)
17
External sensor detected (with optional
external probe)
