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10 Inspection and maintenance
10.6
Replacing the heating rods
1.
Disconnect the heating rod cable connections (1) to the
PCB and to the mains terminal block (N, blue).
2.
Unscrew the earth line.
3.
Use a suitable open-ended spanner to unscrew the
heating rod from the heat exchanger in an anti-clock-
wise direction.
4.
Use a suitable open-ended spanner to screw in a new
heating rod in the heat exchanger in a clockwise direc-
tion.
5.
Check all water-bearing connections for leak-tightness
and check that the plug connections are firmly seated.
6.
Ensure that the contactors and relays do not jam.
10.7
Replacing the expansion relief valve
1
1.
Remove the safety clip (1) and remove the expansion
relief valve from the product.
2.
Insert a new expansion relief valve and use the safety
clip to secure it in place.
3.
Check that the new expansion relief valve is seated
firmly and check it for tightness.
16
10.8
1
1
1.
2.
3.
4.
5.
6.
7.
10.9
1.
2.
3.
4.
5.
10.10 Replace the safety cut-out
1.
2.
3.
4.
5.
Installation and maintenance instructions eloBLOCK 0020265768_01
Replace the pressure sensor
2
3
Remove the plug (1).
Use a screwdriver to remove the safety clamp (2).
Remove the pressure sensor (3).
Insert a new pressure sensor.
Place the safety clamp on the pressure sensor.
Place the plug on the pressure sensor.
Check that the safety clamp and plug are seated firmly.
Replacing the NTC sensor
1
Remove the two plugs from the NTC sensor (1).
Completely remove the NTC sensor along with the re-
tainer.
Install a new NTC sensor.
Position both plugs.
Check that the retainer and the plugs are seated firmly.
1
Remove the two plugs from the safety cut-out (1).
Remove the screw from the retainer and remove the
safety cut-out from the retainer.
Install a new safety cut-out.
Position both plugs.
Check that the safety cut-out is firmly against the heat
exchanger.
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Do you have a question about the eloBLOCK VE 14 EU I Series and is the answer not in the manual?
Questions and answers
Must insall and this to vaillan or not
The Vaillant eloBLOCK VE 14 EU I Series should be installed according to the installation and maintenance instructions provided in the manual. The installation must comply with national regulations, standards, directives, ordinances, and laws. Proper electrical disconnection and safety precautions must be followed to prevent risks such as burns, scalding, or electrical hazards.
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Hi just have fitted eco block of the 28 kw but wonder of el connection there is several slot for mono connection and three face if you can provide more details did i need both cable or possible from three face split one
The electrical connection for the Vaillant eloBLOCK VE 14 EU I Series should be configured as 3x230V/400V+N+PE, 50Hz. It does not require both mono-phase and three-phase cables; it is designed for three-phase connection only.
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