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278
EN
cod. 3542A221 - Rev 00 - 10/2022
ALHENA TECH K 50
Turning the boiler off and on
Changing from one mode to another is possible by repeatedly pressing the button
, following
the sequence shown in fig. 11.
A =
“Summer” mode -
B =
“Winter” mode -
C =
“Off” mode
To turn the boiler off, repeatedly press the button
until detail
C
of fig. 11 is displayed.
fig. 11- Turning the boiler off
When the boiler is turned off, the PCB is still powered. DHW and heating are disabled. The frost
protection system remains on. To relight the boiler, press the button
.
The boiler will be immediately ready in Winter and DHW mode.
B
The frost protection system does not work when the power
and/or gas to the unit are turned off. To avoid damage
caused by freezing during long shutdowns in winter, it is
advisable to drain all water from the boiler, the DHW circuit
and the heating system water; or drain just the DHW cir-
cuit and add a suitable antifreeze to the heating system,
as prescribed in sec. 2.3.
A
B
C
27
°C
29
°C
1.2
bar
OFF
37
°C
1.2
bar
OFF
OFF
1.2
bar
Содержание 0T4T4AWD
Страница 217: ...B 217 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 8 8...
Страница 221: ...221 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 5 C A 5 Confirm F 4 6 4 5 6 F13 A01 21 C C F12 Alarm...
Страница 222: ...222 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 1 3 B 5 7 20 FH 8 280 9 Fh 7 8 9 MAINFW 1 00 DSPFW 1 00 FH 2 Fh 6...
Страница 223: ...223 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 FH Fh Stop 10 0 FH 2 Stop...
Страница 234: ...234 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 2 2 1 2 2 B 2009 142 5 C 15 C A 2 3 B...
Страница 237: ...237 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 2 5 B B 3 mm 3A...
Страница 238: ...238 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 B HAR H05 VV F 3x0 75 mm2 8 mm B 230 V...
Страница 239: ...239 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 on page 256 M F 28 230V 51 28 29 1 2 3 4 A 138 5 6 72 139 F...
Страница 241: ...241 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 2 6 B 200 Pa H1 C AUTO SE TUP...
Страница 247: ...247 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 B 2 7 B 0 5 lt B 37...
Страница 256: ...256 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 3 3 B B 1 1 41 2 41 2 3 1 1...
Страница 257: ...257 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 1 42 42 1 bar venturi OK NO 1 1...
Страница 259: ...259 EL cod 3542A221 Rev 00 10 2022 ALHENA TECH K 50 F05 230V 5 A06 AUTO SETUP AUTO SETUP A08 A09 F09 F10 A11 F11 F12 F13...
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