Vaillant ecoTEC VU - Page 75

Index
75Installation and maintenance instructions ecoTEC 0020173113_01
O
Overview
Inspection and maintenance work .................................... 54
Parameters ............................................................... 44, 45, 46
Read-off and setting options .............................................. 34
Status codes ........................................................................... 60
P
Preparing
Electrical installation ............................................................ 29
Gas installation ...................................................................... 20
Hydraulic installation ............................................................. 21
Pump operating mode ........................................................ 44, 47
Pump overrun .............................................................................. 47
Purge
Heating installation ................................................................ 37
R
Removing
Burner ...................................................................................... 64
Compact thermal module .................................................... 55
Display ...................................................................................... 67
Fan ............................................................................................. 64
Front casing ............................................................................. 18
Heat exchanger ...................................................................... 66
PCB ........................................................................................... 67
Side panel ................................................................................. 19
Repair ............................................................................................ 64
Replacement parts ..................................................................... 64
Reset ............................................................................................... 61
S
Setting
Burner anti-cycling time ...................................................... 47
By-pass valve .......................................................................... 48
Heating partial load .............................................................. 47
Maintenance interval ............................................................ 48
Maximum flow temperature ................................................ 47
Pump operating mode .......................................................... 47
Pump overrun ......................................................................... 47
Return flow temperature control....................................... 47
Unit type .................................................................................. 67
Status codes................................................................................. 60
T
Test programs .............................................................................. 35
Type overview ................................................................................. 5
W
Water pressure ...................................................................... 37, 60
Water pressure sensor ................................................. 37, 60, 62
Wiring diagram ............................................................................ 32