329
EN
cod. 3541V620 - Rev. 00 - 05/2021
ALHENA TECH H
Main exchanger replacement
A
Before carrying out the following instructions it is advisable to protect the room and the
boiler’s electrical box against accidental water spillage.
B
Disconnect the power supply and close the gas cock
ahead of the valve
• Disconnect the fume sensor connector
1
.
• Disconnect the fan connector
• Disconnect the connector of the ignition
electrode connected to the board.
• Drain the water from the boiler heating
circuit.
• Remove the flue connection (concentric
or accessory for separate ducts)
• Remove the fan
• Remove the clips of the two pipes on the
exchanger, pump and hydraulic unit
• Loosen the 2
bottom
screws “5” securing
the exchanger to the frame (fig. 49)
• Remove the 2
top
screws “6” securing
the exchanger to the frame (fig. 50)
• Remove the exchanger
• Insert the new exchanger, resting it on
the
bottom
screws "5"
• For assembly, proceed in reverse order
fig. 46
fig. 47
1
Содержание ALHENA TECH 28 H
Страница 45: ...45 IT cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6 ...
Страница 103: ...103 ES cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6 ...
Страница 160: ...160 RO cod 3541V620 Rev 00 05 2021 ALHENA TECH H fig 48 fig 49 fig 50 5 6 6 ...
Страница 217: ...217 PL cod 3541V620 Rev 00 05 2021 ALHENA TECH H wygląd 48 wygląd 49 wygląd 50 5 6 6 ...
Страница 275: ...275 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H İȚț 48 İȚț 49 İȚț 50 5 6 6 ...
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