Vaillant ecoTEC plus VUI Series User Manual

0020308121_04 Installation and maintenance instructions 97
Overheating protection ........................................................ 12
Overrun time, setting ........................................................... 41
P
Post-heating ........................................................................ 44
Pre-charge pressure for the internal expansion vessel,
checking .............................................................................. 49
Pre-charge pressure for the shift-load cylinder expansion
vessel, checking ................................................................. 49
Preparing, maintenance work.............................................. 46
Pressure level...................................................................... 43
Product
Draining ......................................................................... 50
Switching off .................................................................. 61
Product dimensions............................................................. 13
Pump head .......................................................................... 53
Purging ................................................................................ 36
R
Regulations ........................................................................... 6
Repair
Completing..................................................................... 60
Preparing ....................................................................... 52
Repair work, preparing ........................................................ 46
Replacing the display .................................................... 57–58
Replacing the fan ................................................................ 54
Replacing the internal expansion vessel ............................. 56
Replacing the PCB........................................................ 57–58
Replacing, shift-load cylinder charging pump ..................... 56
Replacing, shift-load cylinder impeller sensor..................... 57
Reset button ........................................................................ 51
S
Safety devices ..................................................................... 12
Scale ................................................................................... 16
Scale deposition .................................................................. 16
Serial number ...................................................................... 11
Service messages............................................................... 51
Setting parameters.............................................................. 40
Setting the domestic hot water temperature........................ 44
Setting the heat curve ......................................................... 44
Setting the maintenance interval ........................................ 45
Setting the max. heat input.................................................. 41
Shift-load cylinder charging pump, replacing ...................... 56
Shift-load cylinder expansion vessel ................................... 56
Shift-load cylinder impeller sensor, replacing...................... 57
Shift-load cylinder PCB, replacing....................................... 58
Shift-load cylinder, connecting ............................................ 28
Shift-load cylinder/heat generator pipe connections ........... 21
Sitherm Pro™ technology ................................................... 11
Spare parts.......................................................................... 52
Standby ............................................................................... 61
Standby mode
Deactivate...................................................................... 35
Starting the installation assistant......................................... 35
Status codes...................................................................... 72
Calling up....................................................................... 32
Exiting ............................................................................ 32
Switching off ........................................................................ 61
T
Technical data ....................................................................... 8
Telephone number, competent person ............................... 35
Time .................................................................................... 35
Treating the heating water................................................... 34
U
UKCA mark ......................................................................... 10
Unit connection piece .......................................................... 20
W
Weight ................................................................................. 14

Vaillant ecoTEC plus VUI Series Specifications

General

Brand	Vaillant
Model	ecoTEC plus VUI Series
Category	Boiler
Language	English