Daikin D2CND028A1AB, Installation Manual

Table of contents

Installation manual

3

D035A1/4AB + D035A4AB
Wall-mounted condensing boiler
3P469346-5N – 2019.11

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......................................................................

4

1.3

Symbols on the package ...........................................................

4

2 Safety instructions

4

3 About the unit

4

3.1

Safety systems ..........................................................................

5

3.2

Dimensions................................................................................

5

3.3

Components ..............................................................................

7

3.4

Technical specifications ............................................................

8

4 Installation

9

4.1

To open the unit ........................................................................

9

4.2

Installation site requirements.....................................................

9

Minimum installation clearances ................................. 10

4.3

To unpack the unit.....................................................................

10

4.4

To mount the unit ......................................................................

11

4.5

Central heating system requirements........................................

11

4.6

Underfloor heating requirements...............................................

12

4.7

Residual pump lift graph............................................................

12

4.8

Connections ..............................................................................

12

4.8.1

Piping connections...................................................... 12

4.8.2

Guidelines when connecting the gas piping................ 13

4.8.3

Guidelines when connecting the water piping............. 13

4.8.4

Guidelines when connecting the electrical wiring ....... 14

4.8.5

Guidelines when connecting options to the boiler....... 14

4.8.6

Wiring diagram............................................................ 16

4.8.7

Guidelines when connecting the condensate piping... 17

4.8.8

Guidelines for condensate piping termination............. 17

4.8.9

Guidelines when connecting the boiler to the flue gas
system......................................................................... 18

4.8.10

Applicable flue systems .............................................. 19

4.9

To fill the system with water ......................................................

24

Method 1 ..................................................................... 24

Method 2 ..................................................................... 25

Method 3 ..................................................................... 25

4.10

Converting for use with a different type of gas ..........................

25

4.10.1

To convert the system for use with a different type of
gas .............................................................................. 26

4.10.2

To modify settings for gas conversion ........................ 26

5 Commissioning

26

5.1

To fill the condensate trap .........................................................

26

5.2

Gas-air ratio: No need to adjust ................................................

26

5.3

To check for gas leakage ..........................................................

26

5.4

To commission the unit .............................................................

27

5.4.1

To commission the central heating ............................. 27

5.4.2

To measure the flue emissions ................................... 27

5.4.3

To commission the central heating capacity setting ... 27

5.4.4

To commission the domestic hot water....................... 27

6 Hand-over to the user

28

6.1

Appliance category and supply pressure ..................................

29

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

DANGER

Following information is only applicable for UK.

If you smell gas:

▪ Away  from  the  building:  call  the  National  Gas

Emergency Service on 0800 111 999.

▪ L.P.G. boilers: Call the supplier's number on the side of

the gas tank.

Contact Information

Homeowner Helpdesk: 0845 641 9271

Technical Helpdesk: 0845 641 9277

Daikin UK

1 The Heights

Brooklands / Weybridge / Surrey

KT13 0NY

Tel: 0845 641 9000

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
Daikin.

▪ 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.