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4 Installation

Installation manual

14

D2CND024A1/4AB + D2TND012~024A4AB

Wall-mounted condensing boiler

3P469346-3N – 2019.11

▪ The materials used in the installation must be in compliance with

the applicable legislation, standards, and regulations.

▪ Heating installation piping material must not allow oxygen diffusion

according to DIN4726.

▪ The  central  heating/domestic  hot  water  installation  should  be

flushed  and  visually  inspected.  Wastes,  dust,  rubbers,  and  metal
pieces generated during the installation and mounting of the boiler
must be removed in order not to cause any damage.

▪ The central heating circuit must be able to withstand a pressure of

at least 6 bar.

▪ Cross  connection  must  be  preferred  in  the  radiators  longer  than

1.5 metres.

▪ The safety valve piping should be connected to a water outlet with

an additional hose or piping. This outlet should not be installed in
places  where  there  is  risk  of  freezing,  nor  in  the  rain  gutter,  it
should  not  end  to  dry  floor  without  available  drainage  to  avoid
damaging of floor coating like parquet.

▪ The maximum pressure in the domestic hot water circuit is 10 bar.

Inspect  the  piping  taking  this  in  to  consideration.  If  the  water
pressure  of  the  main  water  supply  is  excessive,  use  an
appropriate  pressure  reducer.  Installation  must  comply  with
EN 15502-2-2.

▪ As  the  condensing  boilers  generate  condensate,  the  condensate

trap  outlet  should  be  connected  to  an  open  drain.  Piping  and
elements of the drain line must be made of acid-resistant material
like plastics. Metals like steel or copper are not allowed.

▪ The  system  must  be  air-free  to  protect  the  boiler.  There  are  two

automatic air vents on the boiler, one at heat exchanger, the other
on  the  pump.  Ensure  air  is  discharged  completely  at  each  water
filling. Bleed the radiators if necessary.

▪ If  the  boiler  will  be  connected  to  an  old  central  heating/domestic

hot water installation, then first visually inspect the old installation.
The  installation  must  be  in  compliance  with  the  capacity  of  the
boiler  and  must  not  prevent  the  efficient  running  of  it.  Dirt  in  old
system and piping must be flushed, and filters must be inspected.

▪ If old piping material does not have oxygen barrier, then it must be

separated from the boiler circuit via a plate heat exchanger and a
second pump has to be installed for necessary circulation.

▪ If  the  pressure  reading  on  the  boiler  user  interface  is  dropping

repeatedly,  most  probably  there  is  a  leakage  in  the  installation.
Inspect the installation to repair.

▪ In case of solar preheating of the domestic hot water from a solar

tank,  install  the  thermostatic  mixing  valve  at  the  domestic  hot
water outlet and inlet.

4.8.4

Guidelines when connecting the electrical
wiring

DANGER

Before  working  on  the  electrical  circuit  always  isolate  the
unit from the power mains.

WARNING

Only  qualified  persons  are  allowed  to  make  electrical
connections on the unit. Failure to observe this warning will
void the warranty. The manufacturer is not responsible for
any damage that may occur this way.

WARNING

Use  a  dedicated  power  circuit.  Never  use  a  power  supply
cable shared by another unit.

The unit runs on 230 V AC 50 Hz power. A power cable is delivered
with the package. The power cable must be connected to the power
supply  by  an  electrician  and  in  accordance  with  the  applicable
legislation.

a

b

3×0.75 TTR / 230 V

H05RN

1~ 230 V

50 Hz

Cat. III

a

Safety breaker (2 A)

b

Earth leakage safety breaker

Cat. III

Overvoltage category III

▪ Electrical  work  should  be  carried  out  in  accordance  with  the

installation manual and the national electrical wiring rules or code
of practice.

▪ Insufficient  capacity  or  incomplete  electrical  work  may  cause

electrical shock or fire.

▪ A main switch or other means for disconnection, having a contact

separation  in  all  poles  providing  full  disconnection  under
overvoltage category III, shall be installed in the fixed wiring.

▪ Be sure to establish an earth. Do not earth the unit to a utility pipe,

lightning  arrester,  or  telephone  earth. 

Incomplete  earth  may

cause electrical shock and fire.

▪ While  the  electrical  connections  are  being  done,  energy  should

not  be  on  the  main  power  supply  cable  and  the  main  switch
should be closed.

▪ During  the  electrical  connections,  make  sure  that  the  cables  are

well-fixed and are connected firmly and tightly.

▪ Power  supply  cable  must  be  equivalent  to 

H05RN-F  (2451EC57)

as minimum requirement.

▪ The boiler is not approved to be operated at altitudes above 2000

meters above sea level.

Observe the point mentioned below when wiring to the power supply
terminal board.

b

a

L

N

a<b

WARNING

Do  not  interchange  the  supply  conductors  L  and  the
neutral conductor N.

DANGER

Do not use gas and water pipes for earthing purposes and
ensure  that  they  have  not  been  used  for  this  purpose
before. Failure to observe this relieves the manufacturer of
any responsibility.

4.8.5

Guidelines when connecting options to
the boiler

DANGER

X2M connector has 230 V AC.

Optional  equipment  is  connected  to  the  connectors,  which  are
located on the outside of the switch box. Do not open the switch box
to connect optional equipment.

Temperature control units

Connector

Connectio

n

Solar NTC sensor

X1M

1-2

Daikin room thermostat

X1M

3-4

Outdoor sensor

X1M

5-6

Summary of Contents for D2CND024A4AB

Page 1: ...Installation manual Wall mounted condensing boiler English Installation manual Wall mounted condensing boiler D2CND024A1AB D2CND024A4AB D2TND012A4AB D2TND018A4AB D2TND024A4AB...

Page 2: ...tiivsete dokumentidega kui neid kasutatakse vastavalt meie juhenditele atitinka emiau nurodytus standartus ir arba kitus norminius dokumentus su s lyga kad yra naudojami pagal m s nurodymus tad ja lie...

Page 3: ...essure 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...

Page 4: ...2 Safety instructions These instructions are exclusively designed for qualified competent persons Work on gas units must only be carried out by a qualified gas fitter Work on electrical equipment must...

Page 5: ...rising Safety valve When the water pressure of the heating circuit exceeds 3 bar some water is automatically drained from the safety valve to keep the pressure below 3 bar thus protecting the boiler a...

Page 6: ...TND012 024A4AB Wall mounted condensing boiler 3P469346 3N 2019 11 Bottom view of model D2CND024A4AB 53 161 7 105 8 101 4 22 4 65 61 71 9 65 1 Bottom view of models D2TND012A4AB D2TND018A4AB and D2TND0...

Page 7: ...Return temperature sensor s Silencer t Automatic air vent pump u Water pressure sensor v By pass w Boiler pump x Domestic hot water flow sensor y Domestic hot water flow limiter z Internal filling val...

Page 8: ...x m h 0 12 0 46 0 12 0 69 0 12 0 96 0 12 0 96 Combustion products mass flow rate min max G20 g s 1 32 5 12 1 32 7 78 1 32 10 75 1 32 10 75 Combustion products mass flow rate min max G31 g s 1 23 4 77...

Page 9: ...aters 50 C return temperature at heater inlet 4 Installation 4 1 To open the unit WARNING Only qualified competent persons are allowed to open the unit Certain actions explained in this document such...

Page 10: ...current I E E Wiring Regulations local Building Regulations or any other local regulations currently in service The intake air must not include chemicals that may cause corrosion toxic gas formation a...

Page 11: ...height and related system charge pressure are given below h p 6 m 0 8 bar 7 m 0 9 bar 8 m 1 0 bar 9 m 1 1 bar 10 m 1 2 bar 11 m 1 3 bar 12 m 1 4 bar 13 m 1 5 bar h h System water height m p System cha...

Page 12: ...ted to 50 C and the pump operation temperature difference must be adjusted to 10 Kelvin in the service settings menu To change this setting refer to the servicing instructions WARNING Make sure parame...

Page 13: ...d Note Optional Daikin connection kit can be used and it is recommended to use it 4 8 2 Guidelines when connecting the gas piping This unit is designed to be operated with natural gas or LPG The prese...

Page 14: ...ar preheating of the domestic hot water from a solar tank install the thermostatic mixing valve at the domestic hot water outlet and inlet 4 8 4 Guidelines when connecting the electrical wiring DANGER...

Page 15: ...the options that are to be connected to the internal connectors must pop out from the inside of the unit via cable glands Cable glands that are sent with the unit must be assembled to the bottom shee...

Page 16: ...4AB Wall mounted condensing boiler 3P469346 3N 2019 11 4 8 6 Wiring diagram DANGER RISK OF ELECTROCUTION Disconnect the power supply for more than 10 minutes before servicing Models D2CND024A1AB and D...

Page 17: ...Ext3 X1M Daikin room thermostat Ext4 X2M External power output 230 V AC Ext5 X2M Reserved not in use X1M X4 X11 X12 Low voltage terminal strip X2M X1 X2 High voltage terminal strip 4 8 7 Guidelines wh...

Page 18: ...pes are written on the identification label Flue termination The positions of the terminals in the roof or in the wall with respect to openings for ventilation must be in accordance with national regu...

Page 19: ...ith a negative pressure area and therefore a plume management kit MUST be fitted 4 8 10 Applicable flue systems In this part information about different flue systems are given The mounting instruction...

Page 20: ...e Flat roof outlet kit f 90 elbow 60 100 g 45 elbow 60 100 h 30 elbow 60 100 i Extension 60 100 L 500 1000 mm Allowable flue length for C33x D2T H D2C Concentric 60 100 mm 12 5 m 7 6 m Concentric 80...

Page 21: ...ne the correct diameters and lengths of the flue system For D2T H Nominal combustion products temperature 77 C Combustion products mass flow rate 10 75 g s Overheat combustion products temperature 90...

Page 22: ...use flue outlet duct length must be shortened with the same length Type C83x twin pipes flue system The boiler draws combustion air from outside via a separate supply pipe routed through the external...

Page 23: ...69 2 DN 80 Flex square and rough 130 17 0 60 0 DN 80 Flex square and rough 120 12 2 43 0 DN 80 Star square and rough 140 47 5 167 8 DN 80 Star square and rough 120 33 3 117 9 Allowable flue length fo...

Page 24: ...EKFGP4801 1000 mm EKFGP4802 Flue part Order code Tile roof outlet kit 60 100 18 22 EKFGS0518 23 27 EKFGS0519 25 45 EKFGP7910 43 47 EKFGS0523 48 52 EKFGS0524 53 57 EKFGS0525 Tile roof outlet kit 80 12...

Page 25: ...ition 4 Connect the filling loop to the valve 7 and valve 8 5 Set valves 1 3 5 6 and 8 to open position 6 Slowly open the valve 7 until pressure reaches a value around 0 8 bar for system heights up to...

Page 26: ...3 Choose C parameters via left dial and press the Enter button 4 Choose CE and press the Enter button It will ask for password again Choose the password 115 and press the Enter button 5 Choose C0 and...

Page 27: ...The status indicator will glow constantly in blue if flame is established icon will blink when central heating is active INFORMATION After first power ON the boiler does not increase its capacity abov...

Page 28: ...5 Check that domestic hot water temperature rise is around 34 C 6 Hand over to the user After completing the installation and commissioning of the system the installer should hand over to the househo...

Page 29: ...rson who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference GAS BOILER SYSTEM COMMISS...

Page 30: ...co uk It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed Service Provider SERVICE RECORD SERVICE 01 AND Where Possible AND S...

Page 31: ......

Page 32: ...ANBUL T RK YE Tel 0216 453 27 00 Faks 0216 671 06 00 a r Merkezi 444 999 0 Web www daikin com tr G lsuyu Mahallesi Fevzi akmak Caddesi Bur ak Sokak No 20 34848 Maltepe 3P469346 3N 2019 11 Copyright 20...

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