Table Of Contents; 1.1 Storage Of Documents; 1.2 Safety Instructions And Symbols; 1.3 Validity Of The Instruction Manual - Vaillant ecoTEC VU 656/4 Installation And Maintenance Instructions Manual
Gas fired wall hung high efficiency boiler
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Also See for ecoTEC VU 656/4:
- Operating manual (20 pages) ,
- Installation manual (64 pages)
Table of Contents
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Contents
Contents
1
Notes on the documentation ...........................
1.1
Storage of documents .............................................
1.2
Safety instructions and symbols ...........................
1.3
Validity of the instruction manual ........................
2
Description of the boiler .................................. 4
2.1
Design .......................................................................... 4
2.2
Type summary ...........................................................
2.3
CE label ........................................................................
2.4
Intended use ...............................................................
2.5
Identification plate ....................................................
3
Safety instructions and regulations ..............
3.1
Safety instructions ...................................................
3.1.1
Installation and setting ............................................
3.1.2
Gas odour ....................................................................
3.1.3
Changes to the surroundings of the boiler ........ 6
3.2
General requirements .............................................. 6
3.2.1
Related documents ................................................... 6
3.2.2 Installation site .......................................................... 6
3.2.3 Gas supply ...................................................................
3.3
Flue pipe ......................................................................
3.3.1
Standard 125 mm flue pipe .....................................
3.3.2 Flue termination ........................................................
3.4
Air supply .................................................................... 9
3.5
Compartment ventilation ........................................ 9
3.6
Electrical supply ........................................................ 9
4
Assembly ........................................................... 10
4.1
Scope of delivery ...................................................... 10
4.2
Accessories ................................................................. 10
4.3
Installation site .......................................................... 10
4.4
dimensions .................................................................. 11
4.5
4.6
Using the installation template ............................. 12
4.7
Mounting the boiler .................................................. 12
4.8
Removing/attaching the front casing .................. 13
5
Installation ......................................................... 13
5.1
Heating mode ............................................................. 16
5.2
Cylinder charging mode .......................................... 16
5.3
Heating mode and charging mode ....................... 17
5.4
Gas connection .......................................................... 18
5.5
Heating connection .................................................. 18
5.6
heating installation ................................................... 19
5.7
Condensate drain pipework .................................... 19
5.8
Electrical connection ................................................ 20
5.8.1 Mains connection ...................................................... 20
5.8.2 Connecting controllers ............................................ 21
5.8.3 Connecting a low loss header sensor ................. 22
"2 in 7" multifunction module ............................... 22
5.8.5 Connection diagrams ............................................... 23
2
3
6
Start-up .............................................................. 25
3
6.1
Water circulation system ........................................ 25
3
6.2
Filling the system ...................................................... 25
3
6.2.1 Preparation of heating water ................................ 25
6.2.2 Filling and bleeding from the heating side ......... 25
6.2.3 Filling the condensate siphon ................................ 26
6.3
Checking the gas setting ......................................... 27
5
5
installation and flue gas recirculation ................. 27
5
6.3.2 Checking the gas flow rate ..................................... 28
5
6.3.3 Checking the gas inlet working pressure ............ 28
6.4
Checking the appliance function ........................... 29
5
6.4.1 Heating ........................................................................ 29
5
6.4.2 Cylinder charging ...................................................... 30
5
6.5
Handing over the control to the owner ............... 30
5
6.6
Vaillant warranty....................................................... 30
7
7.1
Selection and setting of parameters ................... 31
7.2
Overview of adjustable system parameters ...... 31
7
7.2.1
Setting the heating partial load ............................ 33
7
7
operating mode ......................................................... 33
7
7.2.3 Setting of maximum flow temperature ............... 33
7.2.4 Setting of burner blocking time ............................ 33
interval/maintenance display ................................ 34
8
Inspection and maintenance ........................... 35
8.1
Inspection and maintenance intervals ................. 35
8.1.1
instructions ................................................................. 35
8.1.2 Safety instructions ................................................... 36
(or the air ratio)......................................................... 37
8.1.5 Inspection and maintenance work steps............. 38
.
8.2
installation .................................................................. 39
installation .................................................................. 39
8.2.2 Draining of the boiler ............................................... 39
8.2.3 Draining the entire system ..................................... 39
8.3
8.3.1 Dismounting the compact thermal module ........ 39
8.3.2 Cleaning the heat exchanger ................................. 40
8.3.3 Checking the burner ................................................. 40
8.3.4 Installing the compact thermal module .............. 40
8.4
the condensate siphon ............................................ 41
8.5
Cleaning the air separation system ..................... 42
8.6
external expansion vessel ....................................... 43
8.7
(inlet working pressure) .......................................... 43
Installation and maintenance instructions ecoTEC 0020029173_01
concentration ........................... 36
2
concentration
2
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