328
EN
cod. 3541V620 - Rev. 00 - 05/2021
ALHENA TECH H
Extraordinary maintenance and replacement of components
After replacing the gas valve, burner, electrode and PCB, it is necessary to do the
calibration
[AUTO SETUP]
procedure (see “Calibration procedure [AUTO SETUP]” on page 320). Then fol-
low the instructions in the paragraph “Checking the combustion values” on page 319.
Gas valve replacement
•
Disconnect the power supply and close the gas cock ahead of the valve
.
• Disconnect the electrical connectors
“1”
(fig. 43).
• Disconnect the gas supply pipe
“2”
(fig. 43)
• Undo the screws
“3”
(fig. 44)
• Remove the gas valve
“4”
and the gas diaphragm
“5”
(fig. 45).
• Fit the new valve, carrying out the above steps in reverse order.
•
Refer to the instruction sheet included in the kit when replacing the gas diaphragm.
fig. 43
fig. 44
fig. 45
1
2
3
4
5
Summary of Contents for ALHENA TECH 28 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 wygląd 48 wygląd 49 wygląd 50 5 6 6 ...
Page 275: ...275 EL cod 3541V620 Rev 00 05 2021 ALHENA TECH H İȚț 48 İȚț 49 İȚț 50 5 6 6 ...
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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