background image

content

Gas  regulation

9  

24  

2  

29  

malfunctions

6  

6.1  

6.2  

6.3  

6.4  

18  

Maintenance  8  

8.1  Periodic  maintenance  
8.2  Emptying  the  heating  

system  Commissioning  after  maintenance  

8.3  8.4  Fault  diagnosis  mode  8.4.1  ECO /  Quick-

acting  valve  8.4.2  Summer  operation  

8.4.3  Last  8  faults  detected  8.4  .4  Flow  temperature  8.4.5  

Selected  flow  temperature  8.4.6  Flow  sensor  temperature  8.4.7  Selected  
return  temperature  (domestic  water)

2  

2.1  

Power  plant  information

3  

4  

Electrical  connections  
Connecting  the  boiler  to  the  power  supply  Connecting  

the  heating  system  controller  Connecting  the  hot  water  boiler  

(ZS  models ..)

Installing

4  

5  

Safety  instructions  and  symbols

7  

7.1  

7.2  

7.3  

7.3.1  Adjustment  method  by  measuring  the  nozzle  pressure  24

12  

13  

1  

1.1  

1.2  

Standards

3  

21  

Commissioning  Before  

commissioning  Switching  on /  off  the  

boiler  Switching  on  the  heating  system  

Adjusting  the  heating  system  using  the  room  

thermostat  22

33  

content

5  

Choice  of  location

31  

Functional  diagram  ZW ...

32  

8.4.20  Digital  display  test

Explanation  of  symbols

Domestic  hot  water  flow  and  temperature  (ZW  models ..)  23

24  

30  

8  

14  

5.1  

5.2  

5.3  

32  

13  

23  

4  

Delivery  package

4  

31  

Important  information

8.4.16  Pump  8.4.17  

3-way  valve  8.4.18  Pump  test  

8.4.19  3-way  valve  test

8  

7.4.2  Volumetric  adjustment  method  27

Installing  the  accessory  drawer

Safety  instructions

Checking  the  links

Hot  water  boiler  temperature  control  (ZS  models ..)  23

Domestic  water  heating

31  

17  

size

14  

domestic  hot  water)  6.8  

Protection  against  frost  6.9  Protection  

against  pump  blockage  6.10  Diagnosis  of  

faults

Special  accessories  (see  price  list)

Service  module

31  

Functional  diagram  ZS ...

23  

Types  of  relationships

3  

4  

31  

Mounting  the  bracket  for  wall  mounting

32  

20  

22  

7.4.1  Adjustment  method  by  measuring  the  nozzle  pressure  26

8.4.8  Differential  pressure  switch  8.4.9  
Limiter  control  8.4.10  Flow  detector  

8.4.11  Gas  safety  valve  8.4.12  Gas  

adapter  valve  8.4.13  Thermostat  8.4.14  

Blower  8.4.15  Ionisation

8  

32  

13  

24  

10  

31  

16  

18  

7.4  Heating  power  26

Factory  settings

2.2  

2.3  

2.4  

2.5  

2.6  

2.7  

2.8  

2.9  

Central  description

31  

Boiler  installation

32  

31  

4  

Minimum  distances

32  

21  

8  

30  

7  

4.1  

4.2  

4.3  

4.4  

4.5  

4.6  

4.7  

4.8  

32  

6.6  

6.7  Summer  operating  mode  (preparation  only  23

EC  declaration  of  conformity  for  type  with  approved  sample /  EC  certification

3  

14  

18  

6  720  608  487  

6  

7.3.2  Volumetric  adjustment  method  26

Electrical  wiring  2.10  

Description  of  the  operating  mode  2.10.1  Heating  system  

2.10.2  Domestic  hot  water  2.10.3  Pump  2.11  Expansion  

vessel  2.12  Technical  data

31  

Pipe  installation

31  

32  

22  

24  

30  

9  

8  

7.5  Transformation  to  another  type  of  gas  28

32  

29  

14  

23  

6.5  

31  

4  

Machine Translated by Google

Содержание Ceraclass midi ZS 24-2 DH AE 23

Страница 1: ...ZW 24 2 DH AE 23 ZW 24 2 DH AE 31 ZS 24 2 DH AE 23 ZS 24 2 DH AE 31 Junkers Ceraclass midi Installation and operation manual Machine Translated by Google...

Страница 2: ...valve test 8 7 4 2 Volumetric adjustment method 27 Installing the accessory drawer Safety instructions Checking the links Hot water boiler temperature control ZS models 23 Domestic water heating 31 17...

Страница 3: ...original spare parts will be used B Do not use or store flammable materials he is not allowed to make modifications or repair the installation himself B The boiler switches off B The windows open Be c...

Страница 4: ...and vice versa Gas family type Mounting kit gaskets ZW 24 LCD screen with temperature reading display TR 15 RF with weekly programming ZS 24 EEC 89 336 EEC and corresponds to the approval sample descr...

Страница 5: ...36 The face 88 Wall mounting bracket Control panel 90 2 6 Dimensions 6 720 608 487 Power plant information Fig 1 5 FIG 2 Top view Machine Translated by Google...

Страница 6: ...Burner 6 19 MAX gas adjusting screw Ventilator 5 3 way motorized valve 2 62 Circulation pump with automatic aerator 70 Nitrogen loading valve Air intake duct 73 Static heat exchanger 59 66 72 Automat...

Страница 7: ...nozzle 75 Flow limiter 2 68 Temperature limiter Heating system return Ionization electrode 19 Nozzle Expansion tank 79 Manometer 59 65 MAX gas adjusting screw 3 way valve motor 74 Differential pressur...

Страница 8: ...will take place automatically If this also fails a safety stop follows Direct extraction ZW 2 10 3 Pump 8 flames An ionization electrode 3 takes over the monitoring B Press the emergency key The burne...

Страница 9: ...etermined according to the preload pressure in the expansion vessel B Open the nitrogen filling valve 70 and lower the preload pressure to 0 5 bar The boiler is in operation and the room temperature i...

Страница 10: ...Nominal water flow at T 20 C 18 kW 1 8 10 Central heating system 53 Flue gas values l min Maximum power consumption unity Maximum pressure bar C 11 9 26 5 kW 0 75 Natural gas H Domestic hot water ZW...

Страница 11: ...ted according to 33 kg unity Weight no packaging 0 35 Dimensions H x W x H Power absorbed IP l min X4D 11 50 Hz bar 230 Electrical voltage 11 8 700 x 400 x 298 Protection type Overview ZS ZW 24 DH AE...

Страница 12: ...gulations for the design and execution of liquefied petroleum gas LPG supply systems I 31 Norm for the operation of natural gas supply systems I 6 1 98 Instantaneous hot water generators Normative for...

Страница 13: ...on air must be free of hazardous substances Halogenated acids containing chlorine or fluorine bonds are considered to be corrosion promoting substances If it is not possible to meet these conditions a...

Страница 14: ...ding the minimum distances specified in Fig 7 B Remove the package and follow the instructions on the package B Attach the wall bracket to the appropriate position in the room see section 4 3 B Mark t...

Страница 15: ...ard B To remove the control panel completely when it is positioned as in Fig 10 get up and pull forward For electrical safety reasons the jacket and control panel are secured against unauthorized remo...

Страница 16: ...1 4 B Install the diameter diaphragm 2 in diameter Warning Rolling diaphragm to be 7 5 NG B Check all gaskets for proper positioning finally tighten the Dutch pipe connection nuts B To install the ac...

Страница 17: ...r check pressure per manometer B Switch on the boiler and check the circuit pressure initial Pressure leaks may occur during boiler installation In such cases repeat the filling process until the pres...

Страница 18: ...ns interventions on the electrical part fuses switch B Insert the plug of the power cord into a grounded outlet always disconnected before The electrical connection must comply with the rules in force...

Страница 19: ...the room thermostat TR 12 TRZ Fig 21 TRZ 12 2 12 2 Electrical connections 19 Fig 22 TR 15 RF Room thermostat Fig 20 TR 12 B Remove the jumper between terminals 1 4 Fig 19 item 83 Fig 23 EU 9 D Machin...

Страница 20: ...the Junkers service technicians for the kit Indirectly heated boiler with NTC sensor boiler flexible tubing Connecting cable with adaptation required The kit consists of an NTC sensor with a cable and...

Страница 21: ...and on the other hand provide the customer with all the necessary information installs a softening system or 21 Putting into service B On ZW models the shut off valve opens Fig 25 51 Manometer Heatin...

Страница 22: ...ometer shows the flow temperature heating fill the heating system again so that a pressure of 1 2 bar is obtained frost free position if the thermostat is in this position a primary circuit temperatur...

Страница 23: ...ing the controller approx 70 C B The temperature for the normal operating mode will not be set above 60 C B Turn the temperature control on the boiler counterclockwise until it stops This plant has a...

Страница 24: ...al gas for at least 2 seconds to save the settings made The LED and display flash Other adjustments can be made in service mode It is recommended to adjust according to the method of adjusting the pre...

Страница 25: ...boiler for maximum nozzle pressure At a supply pressure between 15 mbar and 18 mbar for natural gas the rated power must be set to 85 MIN at twelve mbar 1 74 B Turn the temperature knob The digital d...

Страница 26: ...or the minimum heating power see Tab 11 74 Gas supply pressure control Propane 2 1 kg h Bhutan1 Propane1 B The service mode is activated see chapter 7 2 flashing and connect the manometer with a U sha...

Страница 27: ...a flashing light and the indication The control system will adjust the boiler to the maximum heating power l min completely in mbar 32 35 B Turn the temperature knob necessary 16 18 8 Heating power kW...

Страница 28: ...to exit service mode 1 4 B Remove the protective cover by releasing the four 12 B Turn the temperature knob B Pass the modified gas type on the nameplate 1 1 l min B Remove the burner 42 7 GPL 28 74 2...

Страница 29: ...el and if necessary fill it with an air pump at approx 0 75 bar B Gaskets and sealing rings will be removed always disconnected before the heat B The power supply to the boiler will be spare parts saf...

Страница 30: ...t B Tighten all joints again with screwing Reading B Check for gas leaks Reading Last 8 failures B The service gas valve is closed Fig 35 13 Digital display test Once the parameter number has been sel...

Страница 31: ...until obtained on the display 01 there is water flow B Turn the thermostat to 10 8 4 5 Temperature selected for flow 8 4 8 Differential pressure switch until obtained on the display No summer mode of...

Страница 32: ...e burner is still running it is not possible to perform the test and the display shows Depending on the position of the thermostat instruction 17 B Turn the thermostat on 8 4 18 Pump test 02 terrestri...

Страница 33: ...rcuit Checking the status of the limiter No ionization current occurs Check the connections to the pressure switch Ventilate the system and open the automatic boiler aerator displays Gas valve failure...

Страница 34: ...switch connections are Insufficient water flow for Check connections Solution limestone Excess temperature in the primary circuit 34 Possible cause Check that the combustion chamber and or heat exchan...

Страница 35: ...6 720 608 487 35 Machine Translated by Google...

Страница 36: ...Thermotechnical Department Str Horia Macelariu Nr 30 34 www bosch romania ro 013937 Bucharest S C Robert Bosch S R L Machine Translated by Google...

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