19
REPLACING THE HEATING ELEMENTS
Set-up Conditions
•
Boiler shut down using the ON/OFF switch
•
External power supply isolated (through the exter-
nal electrical box)
•
Boiler cooled down (if it was in operation)
Before carrying out any work on the system
ensure that the boiler is cool and all electrical
supplies are isolated.
Procedure
1. Remove the front and side access panels (see
"Removal and Installation of the Access Panels" on
page 10
).
2. Release eight nuts from the heating element
support plate. Retain for reinstallation.
3. Remove the plate and the heating elements, as
well as the seal (
2
).
4. Replace the heating elements (
1
).
5. Replace the seal.
6. Reinstall the plate and the heating elements in
the boiler, with the seal (
2
).
7. Tighten the eight screws in the order shown at
the bottom of the page.
8. Replace the main fuses (if necessary).
Follow-on Tasks
1. Check all the electrical connections
2. Close all open access panels. See
"Removal and
Installation of the Access Panels" on page 10
.
3. Restart the boiler. See
"Starting the boiler" on
page 16
.
Ohmic value : 22 Ω
1
2
1
2
5
7
3
4
8
6
Make sure to tighten the nuts in the sequence
shown
Torque = 10 Nm
EN
Maintenance
1
2
Summary of Contents for E-tech P 115
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