Table of Contents
Installation manual
3
R2CND0 R2TND012~024A4AA
Wall-mounted condensing boiler
3P469346-4E – 2017.07
Table of Contents
1 Introduction
3
1.1
About the documentation ..........................................................
3
1.1.1
Meaning of warnings and symbols..............................
3
1.2
Identification label......................................................................
3
1.3
Symbols on the package ...........................................................
4
2 Safety instructions
4
3 About the unit
4
3.1
Safety systems ..........................................................................
4
3.2
Dimensions................................................................................
5
3.3
Components ..............................................................................
6
3.4
Technical specifications ............................................................
7
4 Installation
8
4.1
To open the unit ........................................................................
8
4.2
Installation site requirements.....................................................
8
Minimum installation clearances .................................
9
4.3
To unpack the unit.....................................................................
9
4.4
To mount the unit ......................................................................
10
4.5
Central heating system requirements........................................
10
4.6
Underfloor heating requirements...............................................
11
4.7
Residual pump lift graph............................................................
11
4.8
Connections ..............................................................................
11
4.8.1
Piping connections...................................................... 11
4.8.2
Guidelines when connecting the gas piping................ 12
4.8.3
Guidelines when connecting the water piping............. 12
4.8.4
Guidelines when connecting the electrical wiring ....... 13
4.8.5
Guidelines when connecting options to the boiler....... 13
4.8.6
Wiring diagram............................................................ 15
4.8.7
Guidelines when connecting the condensate piping... 16
4.8.8
Guidelines for condensate piping termination............. 16
4.8.9
Guidelines when connecting the boiler to the flue gas
system......................................................................... 17
4.8.10
Applicable flue systems .............................................. 17
4.9
To fill the system with water ......................................................
23
Method 1 ..................................................................... 23
Method 2 ..................................................................... 23
4.10
Converting for use with a different type of gas ..........................
23
4.10.1
To convert the system for use with a different type of
gas .............................................................................. 24
4.10.2
To modify settings for gas conversion ........................ 24
5 Commissioning
24
5.1
To fill the condensate trap .........................................................
24
5.2
Gas-air ratio: No need to adjust ................................................
24
5.3
To check for gas leakage ..........................................................
24
5.4
To commission the unit .............................................................
24
5.4.1
To commission the central heating ............................. 25
5.4.2
To commission the central heating capacity setting ... 25
5.4.3
To commission the domestic hot water....................... 25
6 Hand-over to the user
25
Disposal
Old units must be appropriately disposed of, in accordance with local
and national regulations. The components are easy to separate and
the plastics are marked. This allows the various components to be
sorted for appropriate recycling or disposal.
▪ Units are marked with the following symbol:
This means that electrical and electronic products may not be
mixed with unsorted household waste. Do NOT try to dismantle
the system yourself: the dismantling of the system, treatment of
the refrigerant, of oil and of other parts must be done by an
authorized installer and must comply with applicable legislation.
Units must be treated at a specialized treatment facility for reuse,
recycling and recovery. By ensuring this product is disposed of
correctly, you will help to prevent potential negative consequences
for the environment and human health. For more information,
contact your installer or local authority.
1
Introduction
1.1
About the documentation
The instructions contained in this document are intended to guide
you through the installation of the unit. Damage caused by non-
observance of these instructions are not under the responsibility of
ROTEX.
▪ The original documentation is written in English. All other
languages are translations.
▪ The precautions described in this document are written for
installers and they cover very important topics. Follow them
carefully.
▪ Please read the operation manual and installation manual prior to
use and keep them for future reference.
1.1.1
Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
WARNING
Indicates a situation that could result in death or serious
injury.
CAUTION
Indicates a situation that could result in minor or moderate
injury.
NOTICE
Indicates a situation that could result in equipment or
property damage.
INFORMATION
Indicates useful tips or additional information.
1.2
Identification label
You can find data about the unit on its identification label, which is
located at the bottom of the right cover of the unit.
