Vaillant Flue pipe Specifications download pdf (Page 57)

57Instructions for installation and servicing ecoTEC 839592_12

Fig. 9.6 Primary heat exchanger holder

• Disconnect the plug-in connection (2) of the thermal

fuse in the primary heat exchanger.

• Remove the three screws (3) on the primary heat

exchanger holder.

• Turn the holder to the side around the rivet (1), pull

the primary heat exchanger downwards to the right

and remove it from the appliance.

• Mount the new primary heat exchanger in reverse

order and replace the seals.

Caution!

Risk of damaging the primary heat exchanger!

Neither loosen nor retighten the four screws

(Fig. 9.5, Pos. 4).

Caution!

Insert the seal rings for the flow and return pipe

on the primary heat exchanger with a suitable

lubricant. Insert the flow and return connection

in the primary heat exchanger as far as they will

go and make sure the clamps are fitted correctly

on the flow and return pipe (see Fig. 9.5).

• Fill and vent the boiler as required.

• After completing the work, check for gas and water

leaks and perform a function check (see section 7.6).

9.6 Replacing electronics and display

Danger!

Before replacing the component, comply with

the safety instructions in Section 9.1.

• Comply with the assembly and installation manuals

provided with the spare parts.

Replacing display or electronics

If you are replacing only one of the two components, the

parameter adjustment functions automatically. On turning on

the appliance, the new component takes over the previously

set parameters from the components that are not replaced.

Replacing display and electronics

When replacing both components, after being turned on,

the appliance goes to fault and displays the error

message “F70”.

• In the second diagnostic level, under the diagnostic

number “d.93” enter the number of appliance variant

according to Table 9.1 (see section 8.1.2).

The electronics is now set to the appliance type and the

parameters of all adjustable diagnostics numbers

correspond to the factory settings.

Appliance Device specific number

ecoTEC plus 612 0

ecoTEC plus 615 1

ecoTEC plus 618 2

ecoTEC plus 624 3

ecoTEC plus 630 4

ecoTEC plus 637 5

ecoTEC plus 824 6

ecoTEC plus 831 7

ecoTEC plus 837 8

ecoTEC pro 24 7

ecoTEC pro 28 0

Table 9.1 Device specific numbers

Parts replacement 9

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 63 64

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Vaillant Flue pipe Specifications Page 57

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