294
EN
cod. 3541V620 - Rev. 00 - 05/2021
ALHENA TECH H
1.3 Connection to the power supply, switching on and off
Boiler not electrically powered
B
To avoid damage caused by freezing during long idle pe-
riods in winter, it is advisable to drain all the water from the
boiler.
Boiler electrically powered
Electrically power to the boiler.
• During the first 5 seconds the display shows the software version of the board and display
(fig. 7).
• For the following 20 seconds the display will show
FH
which identifies the heating system air
venting cycle with the fan running (fig. 8).
• In the next 280 seconds, the venting cycle continues with the fan off (fig. 9).
• Open the gas valve ahead of the boiler
• When the message
Fh
disappears, the boiler is ready to operate automatically whenever hot
water is drawn or in case of a room thermostat request
fig. 7- Switching on / Software version
fig. 8- Vent with fan on
fig. 9- Vent with fan off
MAIN FW 1.00
DSP FW 1.00
FH
2%
Fh
6%
Summary of Contents for ALHENA TECH H
Page 45: ...45 IT cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6...
Page 103: ...103 ES cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6...
Page 160: ...160 RO cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6...
Page 217: ...217 PL cod 3541V620 Rev 00 05 2021 ALHENA TECH H wygl d 48 wygl d 49 wygl d 50 5 6 6...
Page 231: ...B 231 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H...
Page 232: ...232 EL B CE IT ES RO PL GR cod 3541V620 Rev 00 05 2021 A ALHENA TECH H 8 8...
Page 238: ...238 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H FH Fh 2 10 0 FH 2 Stop...
Page 249: ...249 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 3 27 27 b09 1 1 2bar 0 7bar F37 3...
Page 250: ...250 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 2 2 1 2 2 B 2009 142 5 C 15 C A 2 3 B...
Page 253: ...253 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 2 5 B B 3 mm 3A...
Page 254: ...254 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H B HAR H05 VV F 3x0 75 mm2 8 mm B 230 V...
Page 262: ...262 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H B 2 7 B 0 5 lt B 37...
Page 271: ...271 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 1 1 41 2 41 B 1 42 42 OK NO 1 1...
Page 273: ...273 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 1 43 2 43 3 44 4 5 45 43 44 45 1 2 3 4 5...
Page 274: ...274 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H A B 1 2 5 49 2 6 50 5 46 47 1...
Page 275: ...275 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 48 49 50 5 6 6...
Page 276: ...276 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 1 2 3 4 51 52 1 1 2 2 3 3 4...
Page 277: ...277 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H 1 2 venturi 3 53 54 A 1 2 55 2 1 1 1 2...
Page 330: ...330 EN cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6...
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