Atag Q 25S User Manual

Installation & Servicing Instructions ATAG Q-Series
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Content
1 Introduction ....................................................................................................................................4
2 Rules ............................................................................................................................................4
3 Scope of the supply ........................................................................................................................6
4 Description of the boiler .................................................................................................................6
5 Mounting the boiler .........................................................................................................................7
5.1 Dimensions .........................................................................................................................8
6 Connecting the boiler ...................................................................................................................10
6.1 Central heating system .....................................................................................................10
6.2 Expansion vessel ..............................................................................................................12
6.2.1 Expansion vessel module .................................................................................................13
6.3 Underoor heating system (plastic pipes) .........................................................................14
6.4 Gas connection .................................................................................................................14
6.5 Hot water supply ...............................................................................................................14
6.6 Condensation drain pipe ...................................................................................................15
6.7 Flue gas exhaust system and air supply system ..............................................................16
6.7.1 Dimensions of the ue gas and air intake duct .................................................................20
7 External hot water cylinders .........................................................................................................21
8 Electrical connection ....................................................................................................................22
9 Boiler controls ..............................................................................................................................24
9.1 Explanation of the function keys .......................................................................................25
10 Filling and venting the boiler and installation ...............................................................................26
10.1 Hot water supply ...............................................................................................................26
11 Commissioning the boiler .............................................................................................................27
11.1 Central heating system .....................................................................................................27
11.2 Hot water supply ...............................................................................................................27
11.3 Adjustments ......................................................................................................................28
11.4 Activating factory settings (green key function) ................................................................30
12 Isolating the boiler .......................................................................................................................31
13 Commissioning .............................................................................................................................31
13.1 Checking for contamination ..............................................................................................32
13.2 Checking the CO
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/O
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.......................................................................................................33
13.3 Maintenance activities .......................................................................................................34
13.4 Draining the installation .....................................................................................................36
13.5 User's instructions .............................................................................................................37
13.6 Maintanance frequency .....................................................................................................37
13.7 Warranty ............................................................................................................................37
15 Technical specications ................................................................................................................38
16 Parts of the boiler .........................................................................................................................39
17 Installation examples ....................................................................................................................40
17.1 Radiator installation without thermostatic radiator valves .................................................40
17.2 Radiator installation with underoor heating zone ............................................................41
18 Error indication .............................................................................................................................42
19 Declaration of conformity .............................................................................................................43
20 Kiwa certicate .............................................................................................................................44
Benchmark Checklist ...................................................................................................................45
Service Record .............................................................................................................................46
Work on the installation should only be carried out by qualied personnel
with calibrated equipment.

Atag Q 25S Specifications

General

Brand	Atag
Model	Q 25S
Category	Boiler
Language	English