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4 Installation

Installation manual

11

D2CND024A1/4AB + D2TND012~024A4AB
Wall-mounted condensing boiler
3P469346-3N – 2019.11

4.4

To mount the unit

1

The  mounting  template  shows  the  position  for  the  horizontal
flue. If there is no hole in the wall for the flue piping, drill one. If
there  is  already  a  hole  in  the  wall  for  the  flue  piping,  you  can
use this hole as a starting point to determine the position of the
mounting  bracket,  according  to  the  template.  Flue  duct  must
incline  3°  away  from  the  unit,  to  allow  the  condensate  to  drain
back to the boiler.

>3°

200

127

200

DN100

>3°

2

Drill  holes  for  the  mounting  bracket  (Ø10  mm).  Fasten  the
mounting bracket to the wall according to mounting template.

d=10 mm

3

Hang  the  unit  on  the  bracket.  Make  sure  the  unit  is  latched  to
the bracket.

4.5

Central heating system
requirements

Expansion vessel sizing

The  boiler  is  equipped  with  an  expansion  vessel  that  has  initial
charge pressure of 1 bar.

Sufficiency  of  the  incorporated  expansion  vessel  for  the  central
heating  circuit  that  the  boiler  is  to  be  connected  to  depends  on
system  charge  pressure  and  water  temperature  circulating  in  the
circuit.

Determination  of  system  water  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 charge pressure (bar)

In  case  system  charge  pressure  needs  to  be  more  than  1  bar,  gas
side initial charge pressure must be increased to the pressure value
that  is  equal  to  system  charge  pressure.  Make  sure  that  gas
charging  to  the  vessel  is  done  while  boiler  and  circuit  are  not
pressurized.

According  to  the  graph  below,  there  is  no  need  to  install  an
additional  expansion  vessel  for  the  systems  with  a  water  volume  in
the  area  below  the  operating  temperature  curve.  If  water  volume  is
above  the  curve,  additional  vessel  must  be  installed,  preferably  on
the return to the boiler.

A

System water volume (l)

B

System charge pressure (bar)

*

50°C-40°C temperature regime is given for underfloor
heating systems

Water treatment

Inappropriate  central  heating  circuit  water  reduces  functionality  and
efficiency of the boiler over time. Appropriate water should have:

▪ pH degree between 6.5 and 8.5

▪ Hardness less than 15°fH and 8.4°dH

Appropriate additives can be used for water treatment.

If antifreeze is needed for the system, the chosen antifreeze should
not  interact  with  rubber,  commercial  plastic  and  metal  parts  of  the
boiler that are in contact with the central heating water.

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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