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14
Replacing components
14.11.1 Replacing either the display or the PCB on
the boiler
> Replace the PCB or display according to the assembly
and installation instructions supplied.
1
14.17 Coding resistor
i
If you replace the PCB, you must remove the
front left coding resistor (1) (plug X24) on the
old PCB and insert it into the new PCB.
If you are replacing only one of the two components (PCB
or display), the parametrisation functions automatically. By
switching on the boiler, the new component takes over the
previously set parameters from the unreplaced component.
82
14.11.2 Replacing the PCB and the display on the
boiler at the same time
Setting the language and unit type
i
If you are replacing both components, you must
detach the coding resistor (¬ fig. 14.17, pos. 1)
(plug X24) at the front left from the old PCB and
plug it into the new PCB.
Language
02 English
Cancel
14.18 Setting the language
If you are replacing both components at the same time (if a
spare part is required), the boiler switches directly to the
menu for selecting the language after switching on. The
default language setting is English. You can select the lan-
guage that you require using the minus and plus buttons
and confirm with OK.
You are then automatically taken to the unit type setting
D.093.
> Select the correct value for the relevant unit type in
accordance with ¬ tab. 14.1.
After confirmation, the display restarts itself automatically
and then starts the installation assistant.
ecoTEC plus
937 (VUI GB 376/5-5)
14.1 Device specific number for the unit type
The electronics are now set to the unit type and the param-
eters of all adjustable diagnostics codes are set to default
settings.
> Implement the system-specific settings (¬ section 11).
Installation and maintenance instructions ecoTEC plus 0020134833_01
Ok
Device specific
number (DSN)
17
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