Junkers ZWC 18-3 MFK, ZWC 24-3 MFK, ZWE 28-5 MFA Service Manual

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Junkers ZWE 28-5 MFA Service Manual - Read and Download | Manualzz

2

2 | Contents

Contents

1.

1.1

1.2

3.

3.1

3.2

3.3

3.4

3.4.1

3.4.2

2.2

2.2.1

2.2.2

2.2.3

2.2.4

2.2.5

2.2.6

2.

2.1

2.1.1

2.1.2

2.1.3

2.1.4

2.1.5

2.1.6

Appliance layaut and hydraulic diagrams

Appliance layaut

ZWE 24 / 28 - 5 MFA / MFAE

ZWE 24 - 5 MFK

ZWC 21/24/28/30/35-3 MFA/MFAP/MFAE/MFAM

ZSC 21/24/28/30/35-3 MFA/MFAE/MFAM

ZWC 18/24/28 MFK/MFKP

ZSC 18/24/28 MFK

Hydraulic diagrams

ZWE 24/28-5 MFA/MFAE

ZWE 24-5 MFK

ZWC 21/24/28/30/35-3 MFA/MFAP/MFAE/MFAM

ZSC 21/24/28/30/35-3 MFA/MFAE/MFAM

ZWC 18/24/28-3 MFK/MFKP

ZSC 18/24/28-3 MFK

1 0

1 0

11

1 2

1 3

1 4

1 5

6

7

8

9

4

4

4

5

4.

4.1

4.2

4.3

4.4

4.5

Electrial wiring diagrams

ZWE 24/28-5 MFA/MFAE types

ZWE 24-5 MFK types

2 0

2 0

2 1

ZWC/ZSC 21/24/28/35-3 MFA/MFAP/MFAE types 2 2

ZWC/ZSC 24/28/30/35-3 MFAM types

ZWC/ZSC 18/24/28-3 MFAK/MFKP types

2 3

2 4

5.

5.1

5.2

Safety precautions and symbols

Safety precautions

Symbols

Heatronic 3 functions

Temperature display

Failure display

Private working programme display

Service Functions

1st level service functions

2nd level service functions

Electrial values

ZWE 24/28-5 MFA/MFAE and ZWC/ZSC

21/24/28/30/35-3 MFA/MFAP/MFAE/MFAM types

ZWE 24-5 MFK and ZWC 18/24/28-3

MFK/MFKP types

3

3

3

1 6

1 6

1 6

1 6

1 7

1 7

1 9

7.

7.1

7.1.1

7.1.2

7.1.3

7.1.4

7.1.5

7.2

Gas setting values

ZWE 24/28-5 MFK/MFA/MFAE types

ZWE 24-5 MFK types

ZWE 24-5 MFA types

ZWE 24-5 MFAE / NGVM 24-4 types

ZWE 28-5 MFA / 29 VRC types

ZWE 28-5 MFAE / NGVM 28-4 types

ZWC/ZSC 18/21/24/28/30/35-5 MFK/MFA

7.2.1

7.2.2

7.2.3

7.2.4

7.2.5

7.2.6

7.2.7

7.2.8

MFAP/MFAE/MFAM types

ZWC/ZSC 18-3 MFK types

ZWC/ZSC 24-3 MFK/MFKP and

NGLA/NGLS 24-4 types

ZWC/ZSC 24/28-3 MFK Dual output types

ZWC/ZSC 28-3 MFK types

NGLA / NGLS 28-4 types

ZWC/ZSC 21-3 MFA types

7.2.9

ZWC/ZSC 24-3 MFA/MFAP types

ZWC/ZSC 24-3 MFA/MFAP and

NGVA/NGVS 24-4 types

ZWC/ZSC 28-3 MFA types

7.2.10

ZWC/ZSC 28-3 MFA/MFAP types

7.2.11

ZWC/ZSC 28-3 MFA/MFAE types

7.2.12

ZWC/ZSC 35-3 MFA types

7.2.13

ZWC/ZSC 35-3 MFA types

7.2.14

ZWC/ZSC 35-3 MFAE and NGVA 35-4 types

7.2.15

ZWC/ZSC 24-3 MFAM types

7.2.16

ZWC/ZSC 24-28-3 MFAM Dual output types

7.2.17

NGVA/NGVS 28-4 types

7.2.18

ZWC/ZSC 30-3 MFAM types

7.2.19

ZWC/ZSC 35-3 MFAM types

7.2.20

ZWC/ZSC 35-3 MFAM and NGVA/NGVS

35-4 types

5 5

5 5

5 5

5 7

5 9

5 9

6 2

6 3

6 3

6 4

6 6

6 7

6 9

7 0

7 1

7 2

7 9

8 1

8 1

8 2

8 2

8 3

8 3

7 4

7 4

7 5

7 7

7 8

2 5

2 5

2 7

8.

8.1

8.1.1

8.1.2

8.2

8.3

8.4

Temperature sensor resistance values

CH flow NTC

ZWC/ZSC - 3 and NGVA/NGVS - 4

ZWE - 5 and NGVM/NGLM - 4 types

DHW NTC

Flue gas NTC

Combustion chamber NTC

8 4

8 4

8 4

8 4

8 5

8 5

8 5

6.

6.1

6.2

6.3

Troubleshooting

How to use error codes

Failure display

Error codes

2 9

2 9

2 9

3 1

9.

Display Symbols 8 6

6 720 660 238 (2008/07)

Safety precautions and symbols | 3

1 Safety precautions and symbols

1.1

Safety precautions

Danger on smelling gas

Turn off gas service cock (page 25).

Open the windows.

Do not operate any electrical switches.

Extinguish any naked flames.

Leave the building and call up your gas company and authorized dealer from an outside phone .

Danger on smelling fumes from the appliance

Switch off the appliance (page 26).

Open windows and doors.

Inform your heating engineer.

Fitting and Modifications

Fitting of the appliance or any modifications to the appliance may only be carried out by a competent person.

Flue systems must not be modified in any way.

If the appliance has a type B.. flue system: Ventilation openings in doors, windows and walls must not be sealed or restricted. If draught-proof windows are installed, measures must be taken to ensure there is an adequate supply of air to the appliance for combustion.

Inspection/Maintenance

We recommend that you take out a Inspections-/ maintenance contract with a competent installer and have the appliance serviced at regular intervals.

The operator is responsible for the general and environmental safety of the system.

Only use genuine spare parts!

Combustible materials

Do not store or use any combustible materials (paper, thinners, paints etc.) in the vicinity of the appliance.

Combustion Air/Ambient Air

Keep combustion air/ambient air free of corrosive substances (e. g. halogenated hydrocarbons which contain chlorine or fluorine compounds). In this way corrosion can be prevented.

Instructions to the customer

Instruct the customer in the use of the appliance and how its works.

Point out to the customer that he/she must not carry out any repairs or modifications to the appliance.

1.2

Symbols

Safety instructions in this document are identified by a warning-triangle symbol and are printed on a grey background.

Signal words indicate the seriousness of the hazard in terms of the consequences of not following the safety instructions.

• Caution indicates that minor damage to property could result.

• Warning indicates that minor personal injury or serious damage to property could result.

• Danger indicates that serious personal injury could result. In particularly serious cases, lives could be at risk.

Notes are identified by the symbol shown on the left. They are bordered by horizontal lines above and below the text.

Notes contain important information in cases where there is no risk of personal injury or damage to property.

6 720 660 238 (2008/07) 3

4 | Appliance Layout and Hydralic Diagrams

2. Appliance layout and hydralic diagrams

2.1 Appliance layout

2.1.1 ZWE 24/28-5 MFA/MFAE

221.2

102

33

56

3

63

226

6

20

36

64

7

6.3

413

43

38

295

Fig. 1

3

4

6

Testing point (injector pressure)

Heatronic 3

Temperature limiter for heat exchanger

6.3

Temperature sensor for hot water

7 Testing point for gas supply pressure

8.1

Pressure gauge

15 Safety valve (CH system)

18 Central heating pump

18.1

Pump speed selector switch

20 Expansion vessel

27 Automatic air vent

29 Burner with injector manifold

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

38 System filling loop

43 CH flow

4

120

221.1

228

32

29

27

18.1

18

361.1

418

4

8.1

6 720 613 076-02.1O

56 Gas valve

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting screw for min. gas inlet flow volume

102 Inspection window

120 Fixing points

221.1

Flue duct

221.2

Combustion air intake

226 Fan

228 Differential pressure switch

295 Appliance type sticker

361.1

Drain tap

413 DHW flow meter (turbine)

418 Data plate

15

6 720 660 238 (2008/07)

Appliance Layout and Hydralic Diagrams | 5

2.1.2 ZWE 24-5 MFK

120

6.1

20

6

36

102

33

3

56

63

64

7

6.3

413

11

43

38

295

Fig. 2

3

4

6

Testing point (injector pressure)

Heatronic 3

Temperature limiter for heat exchanger

6.1

Flue gas monitoring system (draught diverter)

6.2

Flue gas monitoring system (combustion chamber)

6.3

Temperature sensor for hot water

7 Testing point for gas supply pressure

8.1

Pressure gauge

15 Safety valve (CH system)

18 Central heating pump

18.1

Pump speed selector switch

20 Expansion vessel

27 Automatic air vent

29 Burner with injector manifold

32 Flame sensing electrode

33 Igniter electrodes

6 720 660 238 (2008/07)

39

32

29

6.2

27

18.1

18

361.1

418

4

8.1

6 720 613 077-02.1O

36 Temperature sensor in CH flow

38 System filling loop

39 Draught diverter

43 CH flow

56 Gas valve

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting screw for min. gas inlet flow volume

102 Inspection window

120 Fixing points

295 Appliance type sticker

361.1

Drain tap

413 DHW flow meter (turbine)

418 Data plate

15

5

4 | Appliance Layout and Hydralic Diagrams

2.1.3 ZXC 21/24/28/30/35-3 MFA/MFAP/MFAE/MFAM

221.2

20

226

20

6

102

6.3

84

43

38

295

33

56

3

63

36

88

64

7

355

6

Fig. 3

3

4

6

Testing point (injector pressure)

Heatronic 3

Temperature limiter for heat exchanger

6.3

Temperature sensor for hot water

7 Testing point for gas supply pressure

8.1

Pressure gauge

15 Safety valve (CH system)

18 Central heating pump

18.1

Pump speed selector switch

20 Expansion vessel

27 Automatic air vent

29 Burner with injector manifold

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

38 System filling loop

43 CH flow

120

221.1

228

29

32

27

18.1

18

413

15

361.1

418

4

8.1

6 720 613 084-03.1O

56 Gas valve

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting screw for min. gas inlet flow volume

84 Motor

88 3-way valve

102 Inspection window

120 Fixing points

221.1

Flue duct

221.2

Combustion air intake

226 Fan

228 Differential pressure switch

295 Appliance type sticker

355 Plate-type domestic hot water heat exchanger

361.1

Drain tap

413 DHW flow meter (turbine)

418 Data plate

6 720 660 238 (2008/07)

Appliance Layout and Hydralic Diagrams | 7

2.1.4 ZSC 21/24/28/30/35-3 MFA/MFAE/MFAP/MFAM

221.2

226

7

11

84

71

43

56

33

3

36

88

63

64

295

20

6

102

Fig. 4

3

4

Testing point (injector pressure)

6

7

Heatronic 3

Temperature limiter for heat exchanger

Testing point for gas supply pressure

8.1

Pressure gauge

15 Safety valve (CH system)

18 Central heating pump

18.1

Pump speed selector switch

20 Expansion vessel

27 Automatic air vent

29 Burner with injector manifold

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

39 Draught diverter

43 CH flow

6 720 660 238 (2008/07)

120

221.1

228

29

32

27

18.1

18

72

361.1

418

4

8.1

6 720 613 084 - 04.1O

56 Gas valve

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting screw for min. gas inlet flow volume

71 Storage flow pipe

72 Storage return pipe

84 Motor

88 3-way valve

102 Inspection window

120 Fixing points

221.1

Flue duct

221.2

Combustion air intake

226 Fan

228 Differential pressure switch

295 Appliance type sticker

361.1

Drain tap

418 Data plate

15

7

8 | Appliance Layout and Hydralic Diagrams

2.1.5. ZWC 18/24/28 MFK/MFKP

120

6.1

39

20

6

102

56

33

6.2

3

36

84

63

64

355

7

11

88

6.3

43

38

295

8

Fig. 5

3

4

6

Testing point (injector pressure)

Heatronic 3

Temperature limiter for heat exchanger

6.1

Flue gas monitoring system (draught diverter)

6.2

Flue gas monitoring syst em (combustion chamber)

6.3

Temperature sensor for hot water

7 Testing point for gas supply pressure

8.1

Pressure gauge

15 Safety valve (CH system)

18 Central heating pump

18.1

Pump speed selector switch

20 Expansion vessel

27 Automatic air vent

29 Burner with injector manifold

32 Flame sensing electrode

33 Igniter electrodes

29

32

27

18.1

18

413

361.1

418

15

4

8.1

6 720 613 085 - 03.1O

36 Temperature sensor in CH flow

38 System filling loop

39 Draught diverter

43 CH flow

56 Gas valve

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting screw for min. gas inlet flow volume

84 Motor 3-way diverter valve

88 3-way valve

102 Inspection window

120 Fixing points

295 Appliance type sticker

355 Plate-type domestic hot water heat exchanger

361.1

Drain tap

413 DHW flow meter (turbine)

418 Data plate

6 720 660 238 (2008/07)

Appliance Layout and Hydralic Diagrams | 9

2.1.6 ZSC 18/27/28 MFK

120

6.1

39

43

295

20

6

102

7

11

88

56

33

6.2

3

36

84

63

64

Fig. 6

3

4

6

Testing point (injector pressure)

Heatronic 3

Temperature limiter for heat exchanger

6.1

Flue gas monitoring system (draught diverter)

6.2

Flue gas monitoring system (combustion chamber NTC)

7 Testing point for gas supply pressure

8.1

Pressure gauge

15 Safety valve (CH system)

18 Central heating pump

18.1

Pump speed selector switch

20 Expansion vessel

27 Automatic air vent

29 Burner with injector manifold

32 Flame sensing electrode

33 Igniter electrodes

6 720 660 238 (2008/07)

29

32

27

18.1

18

361.1

418

4

8.1

6 720 613 085 - 04.1O

36 Temperature sensor in CH flow

39 Draught diverter

43 CH flow

56 Gas valve

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting screw for min. gas inlet flow volume

71 Storage flow pipe

72 Storage return pipe

84 Motor 3-way diverter valve

88 3-way valve

102 Inspection window

120 Fixing points

295 Appliance type sticker

361.1

Drain tap

418 Data plate

15

9

10 | Appliance Layout and Hydralic Diagrams

2.2 Hydraulic Diagrams

2.2.1 ZWE 24/28-5 MFA/MFAE

10

Fig. 7

6 720 660 238 (2008/07)

2.2.2 ZWE 24-5 MFK

Appliance Layout and Hydralic Diagrams | 11

Fig. 8

6 720 660 238 (2008/07) 11

12 | Appliance Layout and Hydralic Diagrams

2.2.3 ZWC 21/24/28/30/35-3 MFA/MFAP/MFAE/MFAM

12

Fig. 9

6 720 660 238 (2008/07)

2.2.4 ZSC 21/24/28/30/35-3 MFA/MFAE/MFAM

Appliance Layout and Hydralic Diagrams | 13

Fig.10

6 720 660 238 (2008/07) 13

14 | Appliance Layout and Hydralic Diagrams

Function diagram, ZWC 18/24/28-3 MFK – Ceraclass Excellence

14

Fig. 11

3 Testing point (injector pressure)

4 HT3

6 Temperature limiter for heat exchanger

6.2 Combustion chamber NTC

6.3 Temperature sensor for hot water

7 Testing point for gas supply pressure

8.1 Manometer

11 Bypass

14 Funnel trap (accessory)

15 Safety valve (CH system)

18 Central heating pump

20 Expansion vessel

26 Valve for charging with nitrogen

27 Automatic air vent

29 Injector jets

30 Burner cover

32 Flame sensing electrode

33 Igniter electrodes

34 Hot water pipe

35 Heat exchanger

36 CH temperature

43 CH flow

44 Hot water flow

45 Gas inlet

46 Cold water inlet

47 CH return

48 Discharge

53 Pressure regulator

55 Filter

56 Gas Valve

57 Safety valve 1

57.1 Safety valve 2

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting nut for min. gas inlet flow volume

69 Control valve

84 Stepper Motor

88 3 Wav valve

355 Plate Heat Exchanger

411 Combustion chamber

413 DHW flow meter (turbine)

441 Pressure compensation opening

478 Silencer

479 Flow regulator

6 720 660 238 (2008/07)

2.2.6 ZSC 18/24/28-3 MFK

Appliance Layout and Hydralic Diagrams | 15

Fig.12

3 Testing point (injector pressure)

4 HT3

6 Temperature limiter for heat exchanger

6.2 Combustion chamber NTC

6.3 Temperature sensor for hot water

7 Testing point for gas supply pressure

8.1 Manometer

11 Bypass

14 Funnel trap (accessory)

15 Safety valve (CH system)

18 Central heating pump

20 Expansion vessel

26 Valve for charging with nitrogen

27 Automatic air vent

29 Injector jets

30 Burner cover

32 Flame sensing electrode

33 Igniter electrodes

34 Hot water pipe

35 Heat exchanger

36 CH temperature

43 CH flow

44 Hot water flow

45 Gas inlet

46 Cold water inlet

47 CH return

48 Discharge

53 Pressure regulator

55 Filter

56 Gas Valve

57 Safety valve 1

57.1 Safety valve 2

63 Adjusting nut for max. gas inlet flow volume

64 Adjusting nut for min. gas inlet flow volume

69 Control valve

84 Stepper Motor

88 3 Wav valve

411 Combustion chamber

441 Pressure compensation opening

6 720 660 238 (2008/07) 15

8 | Functions of Heatronic 3

3

HEATRONIC 3 UNIT FUNCTIONS

3.1

Temperature display:

In normal opening conditions while heating, display only demonstrates the temperature of CH flow. The display with two digits shows the temperatures between 00 and 99°C. if the temperature exceeds 99°C the display shows a max 'U9'.it can not exceed U. (Ex: U3=103°C)

When domestic hot water tapped “.” is displayed.

At service function if adjusted value is over 99 it is displayed one after the other.

E.g.: display 13. and then 05. Means 1305.

Push either or buttons until 9.A is demonstrated in display.

Push once the buton. After then the button's ligth will be on and the chosen value (1) will be demostrated in the display.(1 means continuous working at min power)

Push either or buttons until 0 is demonstrated in display.(0 means normal working) demonstrated. Which means requested operation mode memorized. The CH flow temperature again will be demonstrated in display.

Example:Continous working at max. power “ “

Display shows CH flow temperature and “ “ . This means

3.2

Failure display:

Failures are shown with an Alfa numeric code. So the reason of failure is determined and the failure is removed quickly and safely.

The failures are of 4 groups.

• appliance works continuous at maximum power. Because it is fixed with service function.

To remove this function the instructions below should be followed:

– is seen.)Stop pushing the button when the button's light is on. In display service function number and letter are demonstrated. (eg:1.A).

The appliance remains locked until the main switch is interfered.

The appliance remains locked until the failure is removed.

The appliance keeps limited run

The appliance remains locked until the reset button is pushed.(the reset button flashes.) To reset the appliance push the reset button for a long time.

seconds.(On display “--” is demonstrated.) Keep on pushing the buton until 2 nd service level is reached display will show 8.A.

demonstrated in display.

To reset the appliance push the reset button for a long time.

3.3 PRIVATE WORKING PROGRAME DISPLAY

Example:Working at min power symbol

In display, temperature of CH flow and- are shown one after the other.

To remove this function the instructions below should be followed:

Push the Button approximately 5 seconds(in display – is seen.)Stop pushing the button whenl the button's light is on. On display number and letter are demonstrated.

(eg:1.A).

Push the both and buttons together for 3 seconds.(In display “--” is seen.) push the button for a long time until 2 nd service level is reached. The display will show 8.A.

Then the button's ligth after on and the chosen value (2) will be demostrated in the display.(2 means continous working at max. power) in display.

?

is demonstrated.Then the CH flow temperature again will be demonstrated in display.

Appliance will work continously without checking need of DHW or CH demand. Pump works continously.

16 6 720 660 238 (2008/07)

Functions of Heatronic 3 | 17

3.4. Service Functions be on and the chosen value will be demostrated in the display.

The service functions are divided into two levels: The 1st level includes service function upto 7.C. the 2 nd level includes service functions from 8.A

3.4.1 1st Level Service Mode

To change/arrange service function: displayed

Selectiny service functions

To change or examine a service function:

To store a value:

?

demonstrated. The CH flow temperature again will be demonstrated in display.

Push the button approximately 5 seconds(in display – is seen.)Stop pushing the button when the button's light is on. In display service function with number and letter are demonstrated. (eg:1.A).

To leave the service mode: flow temperature will be displayed again is displayed.

1. First Service Level

Service

Mode

D esciription

1.A

To decrease max heating power (%)

1.b

To decrease max DHW power (%)

1.E

Pump switching type codes (1=depends on burner

2= room term.,3=outdoor thermostat )

2.b

Max. CH flow temperature (°C) Z.C-3, Z.E-5

2.F

Operation mode: (0= normal, 1= min. power

2=max. power)

2.d

Legionalle protection (0=off , 1=on)

3.b

Adjust anti cycle time

3.C

Adjust anti cycle flow temperature differenttial(K)

Z.C-3

Z.E-5

3.d

Adjust min power

3.E

The period activeting keep hot function(comfort mode)

3.F

Min. time for keeping hot

4.b

Max. preheating temperature for comfort function

4.C

Hot water on demand

D isplay Range

21 - U0

21 - U0

1 - 3

40 - 88°C

45 - 82°C

0 - 2

0 - 1

0 - 15 min.

0 - 30 K

21 - U0

20 - 60

0 - 30

40 - 60

0 - 1

Default V alue

U0 (=100)

U0 (=100)

2

-88°C

-82°C

0

0

3 min.

10 K

21

20 min.

5 min.

60 ºC

1 ( 0=inactive 1=active)

0 - 4 (automoticly determined) 4.E

Appliance type (0=only heating, 1=kombi, 2= tank (NTC)

3=tank with thermostat, 4=Stratification tank

5.b

Fan overun time

5.C

Clock type (0=two channels,

1=one channel-CH circuit,2=one channel-DHW circuit)

6.A

Show last fault

6.b

Display room thermostat voltage input (V)

(only for 1-2-4 connections)

1 - 18 (x10) sec.

0 - 2

00 - FF

3 (=30 sec.)

0

(automoticly determined)

Error code

0 - 24

Display measured value

6 720 660 238 (2008/07) 17

18 | Functions of Heatronic 3

Service

Mode Description

6.C

Display max. flow temperature by outdoor temp. control (ºC).

(heating circuit)

6.d

Display actual flow rate turbine (of/min)

6.E

Display programmes inputs.

00 = off, 11 = on

01 = CH off, DHW on

10 = CH on, DHW off

7.A

Drop light LEDs 0=off, 1=on

7.C

The starting flow rate of the DHW

Table 1: First service level functions.

Display Range

0 - 99 ºC -

Default Value

0 - 99

00;01

10;11

-

-

0-1 1

2,5 - 5,0 25 (=2,5 l/min.)

18 6 720 660 238 (2008/07)

Functions of Heatronic 3 | 19

2.

2 nd Level Service Mode button lights up and display shows the value of selected service mode.

3.4.2 Selectry 2 nd Level service Functions

To change or examine a service function:

Entering a setting desired value of the service functions is displayed.

ishows.Release the button when it lights.The display shows number letter. (e.g.1.A).

Storing a setting display shows “[ ]” seconds.(In display – is demonstrated.) Keep on pushing the buton until “number.letter.” are shown on display(e.g.8.A.).

level is still active.

Leaving the service function without storing the values

If the button lights up: displayed.

2. First Service Level

S ervice

Code

D escription

8.A

Display software version

8.b

8.E

Display code plug number

Reset all parameters to factory setting

8.F

9.A

9.b

Permanent ignition

Operation mode permanent:(0=normal, 1=min. power,

2=max. power)

Display fan speed (2-speed fan versions)

9.E

Display fan speed (modulating)(1 Hz=60 rpm)

Response delaytime for DHW(x0,25 seconds) without storing new values

The button goes off after releasing it. The service level is still active.

D isplay Range Default V alue

3 x 2 digits Eg. CL 12 05

1000 - 4000

0

0=OFF, 1=ON

0 - 2

0 = No fan

1 = Low peed

2 = High peed

0-50 Hz

2 - 12

Eg. 13 05

4

-

0

0

9.F

Pump overrun time(CH mode) 0 - 10 minute

3

A.A

Display CH flow temperature

A.B

Display DHW temperature

A.C

A.D

A.F

B.F

B.C

Display tank temperature

Display flue gas temperature

Display combustion chamber NTC temperature

(Display starts after 7 minutes off burner ON)

Solar mode delay time

Current selected map (modulating fan version)

B.D

Manual map selection (modulating fan version)

ºC

ºC

ºC

ºC

0-50sec.

0-3

0-3

-

-

-

-

-

0

0( automatic map

selection)

Table 2. 2 nd service level functions.

6 720 660 238 (2008/07) 19

20

20 | Electrial Wiring Diagrams

4 Electrial wiring diagrams

4.1 ZWE 24/28-5 MFA/MFAE types

302

M 226

33

4.1

136 328.1

328

LR Ls N L

ST10

ST5

135

230 V

9V/25 V

230V/AC

153

463

151

RAS 5;3 ways

M 18

RAS 5;2 ways

310

ST4

161

ST8

ST19

ST15

319

ST17

Terminal

+

315 RAS 3 ways

A

F

6.3

56

ST9

68

52

52.1

313

312

300

6

32

413

228

Fig. 13

4.1

Ignition transformer

6 Temperature limiter for heat exchanger

6.3

Temperature sensor for hot water

18 Central heating pump

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

52 Solenoid valve 1

52.1

Solenoid valve 2

56 Gas valve

68 Control solenoid

135 On-/Off-switch

136 Temperature control for CH flow

151 Fuse T 2,5 A, AC 230 V

153 Transformer

161 Link

226 Fan

228 Differential pressure switch

300 Code plug

302 Earth connection

310 Temperature control for hot water

312 Fuse T 1,6 A

313 Fuse T 0,5 A

36

6 720 613 076-03.1O

315 Terminal block for programmer (EMS bus) and outside temperature sensor

319 Terminal block for external limiter

328 Terminal block for AC 230 V Mains supply

328.1

Link

413 Flow meter (turbine)

463 Diagnostics interface

6 720 660 238 (2008/07)

Electrial Wiring Diagrams | 21

4.2 ZWE 24-5 MFK types

302

33

4.1

136 328.1

328

LR Ls N L

ST10

ST5

151

135

230 V

9V/25 V

230V/AC

153

6 720 613 077-03.1O

463

Fig. 14

4.1

Ignition transformer

6 Temperature limiter for heat exchanger

6.1

Flue gas monitoring system (draught diverter)

6.2

Flue gas monitoring syst em (combustion chamber)

6.3

Temperature sensor for hot water

18 Central heating pump

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

52 Solenoid valve 1

52.1

Solenoid valve 2

56 Gas valve

68 Control solenoid

135 On-/Off-switch

136 Temperature control for CH flow

151 Fuse T 2,5 A, AC 230 V

153 Transformer

161 Link

300 Code plug

302 Earth connection

310 Temperature control for hot water

312 Fuse T 1,6 A

313 Fuse T 0,5 A

6 720 660 238 (2008/07)

18

M

310

ST4

ST19

161

ST8

319

ST15

ST17

+

315

A

F

6.3

313

312

ST9

300

56

6

32

413

6.1

6.2

36

68

52

52.1

315 Terminal block for programmer (EMS bus) and outside temperature sensor

319 Terminal block for external limiter

328 Terminal block for AC 230 V Mains supply

328.1

Link

413 Flow meter (turbine)

463 Diagnostics interface

21

22 | Electrial Wiring Diagrams

4.3 ZWC/ZSC 21/24/28/35 - 3 MFA / MFAE / MFAP types

33

302

4.1

136 328.1

328

LR Ls N L

ST10

151

M 226

ST5

ST19

+

315

ZC

A

F

ST15

ST17

ST19

+

315

ZWC

A

F

6.3

ST15

M 18

ST17 M 84

428 310

ST4

ST25

161

ST8

ST19

ST15

319

ST17

+

315

ZSC

A

F

303

432

M 84

56

135

230 V

9V/25 V

230V/AC

153

463

313

312

ST9

300

6

32

413

68

52

52.1

228

Fig. 15

4.1

Ignition transformer

6 Temperature limiter for heat exchanger

6.3 Temperature sensor, DHW (ZWC)

18 Central heating pump

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

52 Solenoid valve 1

52.1

Solenoid valve 2

56 Gas valve

68 Control solenoid

84 Motor 3-way diverter valve

135 On-/Off-switch

136 Temperature control for CH flow

151 Fuse T 2,5 A, AC 230 V

153 Transformer

161 Link

226 Fan

22

36

6 720 613 084-05.1O

228 Differential pressure switch

300 Code plug

302 Earth connection

303 HW cylinder NTC sens or connection (ZSC)

310 Temperature control for hot water

312 Fuse T 1,6 A

313 Fuse T 0,5 A

315 Terminal block for programmer (EMS bus) and outside temperature sensor

319 Terminal block for cylinder thermostat or external limiter

328 Terminal block for AC 230 V Mains supply

328.1

Link

413 Flow meter (turbine) (ZWC)

428 Connection for circulation pump (ZSC others)

432 HW cylinder DHW sensor (ZSC, optional)

463 Diagnostics interface

6 720 660 238 (2008/07)

Electrial Wiring Diagrams | 23

4.4 ZWC/ZSC 24/28/30/35 MFAM types

33

302

4.1

136 328.1

328

LR Ls N L

ST10

151

M

226

ST5

ST19

+

315

ZWC

A

F

6.3

ST15

M 18

ST17 M 84

428 310

+

ST4

ST25

161

ST8

ST19

ST15

319

ST17

A

F

303

315

M

ZSC

84

432

56

135

230 V

9V/25 V

230V/AC

153

463

313

312

ST9

300

6

32

413

68

52

52.1

228

36

6 720 613 782-04.1O

Fig. 16

4.1

Ignition transformer

6 Temperature limiter for heat exchanger

6.3 Temperature sensor, DHW (ZWC)

18 Central heating pump

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

52 Solenoid valve 1

52.1

Solenoid valve 2

56 Gas valve

68 Control solenoid

84 Motor 3-way diverter valve

135 On-/Off-switch

136 Temperature control for CH flow

151 Fuse T 2,5 A, AC 230 V

153 Transformer

161 Link

226 Modulating Fan

228 Differential pressure switch

300 Code plug

302 Earth connection

303 HW cylinder NTC sens or connection (ZSC)

310 Temperature control for hot water

312 Fuse T 1,6 A

313 Fuse T 0,5 A

315 Terminal block for programmer (EMS bus) and outside temperature sensor

319 Terminal block for cylinder thermostat or external limiter

328 Terminal block for AC 230 V Mains supply

328.1

Link

413 Flow meter (turbine) (ZWC)

428 Connection for circulation pump (ZSC types)

432 HW cylinder DHW sensor (ZSC, optional)

463 Diagnostics interface

6 720 660 238 (2008/07) 23

24 | Electrial Wiring Diagrams

4.5 ZWC/ZSC 18/24/28-3 MFK / MFKP types

302

33

4.1

136 328.1

328

LR Ls N L

ST10

ST5

151

135

230 V

9V/25 V

230V/AC

153

6 720 613 085-05.1O

463

ST19

A

F

+

315

ZWC

6.3

18

M

ST15

428 310

ST17

ST4

ST25

161

ST8

319

ST19

ST15

ST17

M 84

+

315

ZSC

A

F

303

432

M 84

56

313

312

ST9

300

6

32

413

6.1

6.2

36

68

52

52.1

Fig. 17

4.1

Ignition transformer

6 Temperature limiter for heat exchanger

6.1

Flue gas monitoring system (draught diverter)

6.2

Flue gas monitoring system (combustion chamber)

6.3 Temperature sensor, DHW (ZWC)

18 Central heating pump

32 Flame sensing electrode

33 Igniter electrodes

36 Temperature sensor in CH flow

52 Solenoid valve 1

52.1

Solenoid valve 2

56 Gas valve

68 Control solenoid

84 3-way motorised valve (ZWC, ZSC)

135 On-/Off-switch

136 Temperature control for CH flow

24

161 Link

300 Code plug

302 Earth connection

303 HW cylinder NTC sens or connection (ZSC)

310 Temperature control for hot water

312 Fuse T 1,6 A

313 Fuse T 0,5 A

315 Terminal block for programmer (EMS bus) and outside temperature sensor

319 Terminal block for cylinder thermostat or external limiter

328 Terminal block for AC 230 V Mains supply

328.1

Link

413 Flow meter (turbine) (ZWC)

428 Connection for circulation pump (ZSC types)

432 HW cylinder DHW sensor (ZSC, optional)

463 Diagnostics interface

6 720 660 238 (2008/07)

Electrial Values | 25

5 ELECTRIC AL VALUES

5.1 ZWC 21/24/28/30/35-3 MFA / MFAP / MFAE / MFAM and ZWE 24/28-5 MFA / MFAE types

Pos.

6

6.3

D e scription

M easurement

Point

Limit Tthermostat

Main heat

Exchanger

White socket on St9

(RAS 2,5:20 pole connector)

Connector: 13 - 14

Cable colour: red

Domestic hot water temperature

White socket on St15

(RAS 5:3 pole connector) sensor (DHW-NTC) Connector: 1 - 3

Cable colour: yellow

18

32

36

52

Pump

1.Speed

2.Speed

Ionization

Electrode

CH flow

Temperature

Sensor (NTC)

3.Speed

White socket on St9

(RAS 2,5:20 pole connector)

Connector: 12

Cable colour: green

White socket on St9

(RAS 2,5:20 pole connector)

Connector: 1-8

Cable colour: green

Gas safety valve 1

White socket on St9

(RAS 2,5:20 pole connector )

Connector: 17-18

Cable colour:black / white

52.1

Gas safety valve 2

White socket on St9

(RAS 2,5:20 pole connector )

Connector: 16-17

Cable colour:grey black

68

Gas regulator valve White socket on St9

(RAS 2,5:20 pole connector )

Connector: 19-20

Cable colour: blue

151 Fuse T 2,5 A,

153

230 VAC

Transformator

On the fuse

Input(230V)=48?

Input 9VDC:1?

Exit 25 VDC:1,4?

Range

0 ?

20 ºC => 12 k?

60 ºC => 2,5 k?

450 ?

340 ?

230 ?

app. 4-5µA

20 ºC => 12 k?

60 ºC => 2,5 k?

80 ?

187 ?

80 ?

min. 27 mA max. 130 (mA

(max 165 mA for

LPG gases)

-

0 ?

Related Heatronic

Service Function

T olerance Remarks

Limit = 110

ºC

-

A.b

-

A.A

-

-

± 0,5 k ?

-

±10 ?

± 0,5 k

± 10 ?

± 20 ?

± 3 ?

?

or can be

measured

on NTC

Measure

At pump

Connection

Common

Connector 17

(neutral)

Cut the

Voltage before measurement

Measure on the trafo itself

after

disassembling

6 720 660 238 (2008/07) 25

Electrial Values | 27

5.2 ZWC / ZSC 18/24/28-3 MFK / MFKP and ZWE 24-5 MFK types

Pos.

D efinition

6 Limit

Thermostat

M easurement

Point

V

White socket

(RAS 2,5:20 pole connector)

Connector: 13-14 alue E

0 ?

xpected

Heatronic

Parameter

6.1

6.2

6.3

18

32

36

52

52.1

68

151

Flue gas NTC

(Agü)

Combustion

Chamber

Temperature

Sensor

CH flow temperature sensor (NTC)

Pomp

White sock

(RAS 2,5:20 pole connector)

Connector:7-8

Cable colour:blue

White sock

(RAS 2,5:20 pole connector)

Connector: 5-6

Cable colour: red

20 ºC => 12,2 k?

80 ºC => 1,6 k?

20 ºC => 125 k?

120 ºC => 3,6 k?

A.E

A.F

White sock

(RAS 2,5:20 pole connector)

Connector: 1-3

Cable colour: yellow

1.Speed

2.Speed

3.Speed

20 ºC => 12 k?

60 ºC => 2,5 k?

450 W

340 W

230 W

App. 4 - 5 µ A

A.b

-

-

Ionization

electrode

CH Flow temperature

Sensor (NTC)

White sock

(RAS 2,5:20 pole connector)

Connector: 12

Cable colour: green

White sock

(RAS 2,5:20 pole connector)

Connector: 1-2

Cable colour: green

Gas safety valve White sock

1

(RAS 2,5:20 pole connector)

Connector: 17-18

Cable colour:black/white

20 ºC => 14,7 k?

80 ºC => 1,7 k?

80 ?

A.A

-

187 ?

- Gas safety valve White sock

2

(RAS 2,5:20 pole connector)

Connector:16-17

Cable colour:grey/black

Regulator valve White sock

(RAS 2,5:20 pole connector)

Connector: 19-20

Cable colour:blue fuse T 2,5

A,

230 VAC

At the fuse

80 ?

min. 27 mA max. 130 (for LPG

165)mA

0 W

-

-

Tab. 4

T olerance E xplanation

Limit=110°C

± 0,5 k ?

Turn off temperature

70 - 104 ºC

± 0,5 k ?

Can be

Measured at

NTC too

± 0,5 k?

Can be

Measured at

NTC too

± ?

Measure at the

pomp connection

-

± 1 k ?

± 40 ?

± 10 ?

± 20 ?

± 3 ?

-

Connector 17 common

(neutral)

Cut the voltage!

6 720 660 238 (2008/07) 27

28 | Electrial Values

Pos.

153

D efinition

Transformator

M easurement

Point

Enter(230V)=48?

Exit 9VDC:1?

V alue E xpected

Heatronic

Parameter

Exit 25 VDC:1,4?

At the fuse 312

313

Fuse T 1,6 A,

24 V DC

Fuse T 0,5A,

5 V DC

At the fuse

0 ?

?

-

-

413

Flow rate

Sensor(turbine)

White sock

Connector: 9-10-11

Cable colour :red

yellow / black

9,6 Hz = 1,5 l/min.

68,7 Hz. = 10 l/min.

6.d

Tab. 4 Electrial values for ZWC / ZSC 18/24/28-3 MFK / MFKP and ZWE 24/28-5 MFK types

T olerance E xplanation

Measure when the trafo

-

-

± 2 Hz

± 6 Hz

-

-

-

28 6 720 660 238 (2008/07)

6

Troubleshooting

6.1 How to use Error codes

6.2

Failure display

The failures are divided into 4 groups:

Each error codes explained with general error reasons. Follow the instructions to remove the error pressed.

Troubleshooting | 29 pressed

Table. 5 Error Codes

E rror E rror

C ode category

E rror D escription

A4 2 Flue gas lesks from flue hood

C ontrol S tep

Check flue gas way

A2, C3 2,4 Lesk fromcombustion chamber

A3 d4

C1

2

2

2

Flue gas NTC blocked

Fast temperature increase detected in CH.

Air pressure switch opens during operation

Check primary heat exchanger for any blockage

Check flue gas temperature NTC and its connection

Check system pressure and by pass and pump

Check air pressure switch connecting pipes flue gas way and fan

X

X

RSF OF Page

X ?

X ?

X

X

?

?

?

X

?

C4, C6 1

E9

4

A6

E2

A8

EA

3

2

3

4

Air pressure switch not opening or closing

Over heat thermostat triggered.

Check air pressure switch connecting pipes flue gas way and fan

Check system pressure, temperature limiter, pump, fuse 3 on HT3.

Combustion chamber NTC is defective

CH flow NTC is defective

BUS communication interrupted

Flame not detected

Check combustion chamber

NTC and its connections

Check CH flow NTC and its connections

Check connection cable and / or controller

Check gas inlet valve if it is open.

Check gas inlet pressure, ignition electrode and cables

X

X

X

X

X

X

X

X

X

?

?

?

?

?

F7

4

Flame sensed after appliance switched off

Check ionization electrode and its cables. Check wetness on pcB

X X ?

6 720 660 238 (2008/07) 29

30 | Troubleshooting

E rror E rror

C ode C ategory

E rror D escription d3

2

Link 161 on St8 is not detected.

(see electrical wiring diagrams b1

2 Code plug not detected

C ontrol S tep / Not plugged properly or bridge is missing

Not plugged properly or bridge is missing

Insert code plug correctly test and replace it necessory

X

RSF

OF Page

X X 38

X 39

A9 3 DHW NTC is not correctly installed

Check DHW NTC installation location. If needed dismount and re-install it.

X

FA 4 After switching off gas flame detected

Internal error

Check ionization electrode and gas valve X

E0, F0 4

Check electrieal connections, ignition cable connection, if needed,replace pcB.

X

Fd

4

Tab. 5 Error Codes

Reset button pressed accidentally too long (> 30 secs)

Push reset button again X

X

X

X

X

40

41

42

42

30 6 720 660 238 (2008/07)

Troubleshooting | 31

6.3

Error codes

A4

IS FLASHING

Flue gas leak from flue hood

Turn off the appliance and open again

Wait for appliance to restart automaticaly after 12 minutes

Order C ontrol S tep

1.

Check if flue gas leak from draft driverter? Yes:

2.

No:

Yes:

Check if temperature around flue gas NTC is >70°C or not;

Go to service function AE

Flue gas NTC temperature displayed on HT3

3.

Measures

2.

3.

Check and correct flue gas pipes installation

Measure draft (must be > 0,015 mbar)

Chek and correct wind protection installation.

If A4 still flashing. ↓ 3

No: ↓ 3.

Check if flue gas NTC is defective or not as below;

No:

Check connection(especially on RAS 5; 20 way

Connector) If needed, replace cable harnecs

If A4 still flashing.

Turn off the appliance

Pull NTC cables out

Yes:

Change the sensor(NTC)

Check NTC resistance

Fasten the connection cable

Within specified limits within

Switch on the appliance

If A4 is flashing. ↓

4.

Is draft diverter dirty or damaged?

Yes:

5.

Electronic card is out of order

No:

Clean the draft diverter surface or replace it if needed.

If A4 is still flashing. ↓ 5

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

31 6 720 660 238 (2008/07)

32

32 | Troubleshooting

2.

1.

A2

and later

C3

is flashing

Flue gas leakage from combustion chamber

Measure Order Control S tep

Is there temperature increase under burner or on combustion chamber

Yes:

No:

↓ 2.

↓ 3.

Yes:

Check if combustion chamber temperature NTC is less than specified below table

Enter the service function AF

Check and correct flue gas pipes installation

Measure draft (must be > 0,015 mbar)

Combustion chamber flue gas temperature will be displayed on Ht3

Check and correct wind protection installation

Appliance

ZWE 24/28-5

MFK

ZWC 24-3

MFK

Code plug no

1502/1512

1503/1513

1506/1514

No:

Is A2(C3) flashing? ↓ 3

↓ 3.

Limit combustion chamber

NTC temperature in CH mode

In DHW mode

150

150

150

165

150

165

1507/1515 165 165

ZWC 24/28-3

MFK

(dual output)

ZWC 28-3

MFK

ZWC 18-3

MFK

1510

1511

1516

1517

1518

1519

180

180

196

196

132

132

196

196

196

196

132

132

6 720 660 238 (2008/07)

Troubleshooting | 33

A2

and later

C3

is flashing

Flue gas leakage from combustion chamber

Measure Order Control S tep

3.

Check if combustion chamber NTC is defective or not

Turn off the appliance

Yes: Change the sensor(NTC)

Fasten the connection cable

Switch on the appliance

If A2 still flashing,

Pull NTC cables out

No:

Check if NTC resistance is within specified limits

Check cable connections (especially on RAS 5;20 way connector) If needed replace cable harness

If A2 still flashing,

4.

Is heat exchanger surface plugged and dirty?

Check if heat exchanger is blocked by dirt or not

Yes:

No:

Clean the heat exchanger surface (Replace if needed)

If A2 still flashing,

↓ 5.

5.

Electronic card is out of order Switch off the appliance

Cut mains supply.

Change the electronic card

Connect mains supply

Switch on the appliance

In case of blocked heat exchanger, appliance gives

A2 error. A2 is cleaned automatically after 20 minutes. If appliance gives 3 subsequent A2 failure then display shows C3 error and block the appliance.

6 720 660 238 (2008/07) 33

34 | Troubleshooting

A3

IS FLASHING

Flue gas NTC is blocked

Order Control S tep

1.

Is the range in between 0-30 k?

2.

Electronic card is out of order.

Yes:

No:

Yes:

Measure

Check cable connectýons(especially on RAS5;20 way connector) ýf needed replace cable harners

Change flue gas NTC.

If A3 still flashing? ↓

Switch off the appliance

Cut mains supply

Change the electronic card.

Connect to mains supply

Switch on the appliance

34 6 720 660 238 (2008/07)

Troubleshooting | 35

3.

2.

d4

IS FLASHING

A fast temperature increase detected inCH. (> 40 K / secs)

Order C ontrol S tep

1.

Check system pressure on manometer.

Is the system pressure > 0,5 bar?

Yes:

No:

Measure

Fill the system with water.

If d4 still flashing? ↓ 2.

Is there air in the system?

Yes:

No:

Remove the air in system.

If d4 still flashing? ↓ 3.

Check if there is enough conducting paste between CH NTC and pipe (for ZWE-5 types)

Yes:

No: Add conducting paste between CH NTC and pipe.

If d4 still flashing? ↓ 4.

4. Pull out connections of CH NTC

Measure the resistance ans see if it is

within specified limits.

Yes:

No:

Check cable connections (especially on RAS 5;20 way connector) If needed replace cable harness

If d4 still flashing? ↓ 5.

Change CH NTC

If d4 still flashing? ↓ 5.

Yes:

No: Check and clean pump, filters and return and flow valves

If d4 still flashing? ↓ 6.

Turn of the appliance.

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

6 720 660 238 (2008/07) 35

36

36 | Troubleshooting

C1

IS FLASHING

Air pressure switch (APS) opens during operation

Order Control S tep

1. Check flue pipe for any blockage or

wrong installation

2. Check if air pressure switch hoses are installed correctly?

No:

Yes:

3.

Check if APS hoses are damaged or blocked or check if there is condensation in hoses?

Yes:

4. Check if the fan is operating or not?

There is Check if there is condensation on in APS hose connection points?

No:

Yes:

5. Check the mains supply voltage

6.

Is it 230 V?

Check fan cables for damages?

Yes:

No:

No:

No:

Yes:

Yes:

Measure

↓ 2.

Turn off the appliance

Clean the flue gas pipe or corrent the installation

Switch on the appliance

If C1 still flashing ↓ 2.

↓ 3.

Turn off the appliance

Correct the assembly of APS hoses

Switch on the appliance

If C1 still flashing ↓ 4

Turn off the appliance

Clean and dry APS hoses.

Switch on the appliance

If C1 still flashing? ↓ 4.

↓ 4.

Turn off the appliance

Clean and dry APS hose connection points on the fan

If C1 still flashing ↓ 5.

↓ 5.

Turn off the appliance

Change fan

If C1 still flashing ↓ 8.

Turn off the appliance

Change fan cable

Switch on the appliance

If C1 still flashing ↓ 9.

No:

6 720 660 238 (2008/07)

C1

I

S FLASHING

Air pressure switch (APS) opens during operation

Order Control S tep

7.

Cheek if fan is operating correctly Yes:

Measure

8.

Check if the 20 poled connection cable damaged.

Check 7-8 pin for any intermittent contact

No:

Yes:

No:

Change fan

If C1 still flashing? ↓

Change the cable harness

Switch on the appliance.

If C1 still flashing ↓ 9.

Troubleshooting | 37

9.

Electronic card is out of order Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

6 720 660 238 (2008/07) 37

38

38 | Troubleshooting

Order

1.

C4

I

S FLASHING

APS contacts remain closed

Control S tep

Check if APS hoses are damaged or blocked or check if there is condensation in hoses?

No:

Yes:

2.

Check if the 20 poled connection cable damaged.

Check 7-8 pin for any intermittent contact

Yes:

No:

Measure

Turn off the appliance

Clean and dry APS hoses.

Switch on the appliance

If C4 still flashing? ↓ 2.

Change the cable harness

Switch on the appliance.

If C4 still flashing ↓ 3.

3.

Check if APS is working or not

4.

Electronic card is out of order

Yes:

No:

Turn off the appliance

Change APS

Switch on the appliance

If C4 still flashing ↓ 4.

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

6 720 660 238 (2008/07)

Troubleshooting | 39

C6

IS FLASHING

Air pressure switch not closing.

Order Control S tep

1.

Check flue pipe for any blockage or wrong installation

No:

Yes:

2. Check if air pressure switch hoses are installed correctly?

Yes:

No:

3.

4.

Check if APS hoses are damaged or blocked or check if there is condensation in hoses?

C h k the mains supply voltage.

Is it < 230 V?

5. Check if APS is working or not

6. Check if the fan is operating or not?

Check if condensation in APS hose connection points?

Yes:

No:

Yes:

No:

Yes:

No:

Yes:

Measure

↓ 2.

Turn off the appliance

Clean the flue gas pipe or correct the installation

Switch on the appliance

If C6 still flashing ↓ 2.

Ø 4.

Turn off the appliance

Correct the assembly of APS hoses

Switch on the appliance

If C6 still flashing ↓ 4

Turn off the appliance

Clean and dry APS hoses.

Switch on the appliance

If C6 still flashing ↓ 4.

↓ 5.

Turn off the appliance

Change fan

If C6 still flashing ↓ 5.

↓ 5.

Turn off the appliance

Change APS

Switch on the appliance

If C6 still flashing ↓ 6.

Turn off the appliance

Clean and dru Aps hose connection points on the fan

If C6 still flashing ↓ 7.

No:

39 6 720 660 238 (2008/07)

40

40 | Troubleshooting

C6

IS FLASHING

Air pressure switch not closing

Order Control S tep

7.

Check fan cables for damages?

8.

Check if 20 poled connection cable damaged.

Check 7-8 pin for any intermittent contact

No:

Yes:

No:

Yes:

Measure

Turn off the appliance

Change fan cable

Switch on the appliance

If C6 still flashing? ↓

Change the cable harness

Switch on the appliance.

If C6 still flashing ↓ 9.

9.

Electronic card is out of order Switch off the appliance

Cut mains supply

Change the electronic card

Connect mains supply

Switch on the appliance

6 720 660 238 (2008/07)

Troubleshooting | 41

E9

IS FLASHING

Over heat thermostat triggered

Order Control S tep

1.

Check if system pressure is > 0,5 bar.

Yes:

No:

2. Check if circulation pump is blocked.

Yes:

Measure

2.

Fill the system with water

Make sure all air removed from the system

If E9 is flashing 2.

Turn pump propeller manually by help of a screw driver

If problem continues:

Turn off the appliance

Cut mains supply and empty water

Change pump

Fill the system and remove air.

Connect mains supply

Turn on appliance and press reset button

3. Check cable connections for internittent contact.

Check 13-14 pin connections on 20 poled RAS 5 connector for intermittent contact

No:

Yes:

4.

Check if the fuses on the electronic card are working

No:

Yes:

No:

5.

Check if temperature limiter on heat exchanger is working

Yes:

No:

If E9 still flashing 3.

3.

Fix the connections if error continues.

Change the cable harnees

If E9 still flashing 4.

4.

5.

Change the fuse

Switch on the appliance.

If E9 still flashing 5.

6.

Change termature limiter

Switch on the appliance.

If E9 still flashing 6.

41 6 720 660 238 (2008/07)

42 | Troubleshooting

E9

IS FLASHING

Over hest thermostat triggered

Order Control S tep

5.

Electronic card is out of order

Measure

Switch off the appliance.

Cut mains supply

Change the electronic card

Connect to mains supplu

Switch on the appliance

42 6 720 660 238 (2008/07)

2.

A6

IS FLASHING

Combustion chamber NTC is defective

Order Control S tep

1.

Check if the combustion chamber temperature sensor (NTC) is damaged.

or not.

Turn off the appliance.

Pull out the cables

Measure the electrical resistance of the NTC sensor.

Are the measured resistance values OK?

Yes:

No:

Check if the cables are damaged or not?

Yes:

Turn off the appliance.

If NTC is changed:

- Pull the NTC cables out

- Measure NTC resistance.

- Reconnect NTC cables

Pull out the 20 poled RASS connector at St9 on HT3

Measure the sensors electrical resistance directly at this connector

No:

Are the resistance values measured at the

sensor and 20 pole connector different?

3.

Electronic card is out of order.

Measure

Check the connection cable.

If A6 still flashing 2.

Change the NTC.

Connect cables.

Switch on the appliance.

If A6 still flashing 2.

Change the cable harness

Switch on the appliance.

If A6 still flashing 3.

3.

1) Combustion chamber NTC starts measuring after 7 mins of operation

Switch off the appliance.

Cut mains supply

Change the electronic card.

Connect to mains supply

Switch on the appliance.

Troubleshooting | 43

6 720 660 238 (2008/07) 43

44

44 | Troubleshooting

2.

E2

IS FLASHING

CH NTC is defective

Order Control S tep

1.

Check if CH flow temperature sensor

(NTC) is damaged or not?

Turn of the appliance

Pull cables out

Measure the electrical resistance of the NTC sensor.

Are the measured values OK?

(resistance table)

Yes:

No:

Check if the cables are damaged or not?

Yes:

Turn of the appliance

·If NTC changed:

-disassemble the NTC cable from

NTC.

-measure the sensor resistance.

-assemble the NTC to NTC cable again.

Pull out the 20 poled RAS 5 connector from the electronic card.

Measure the electrical resistance of

No:

Are the measured resistance values at at NTC and sock connection same?

3.

Electronic card is out of order.

Measure

Check the connection terminal on NTC

If E2 still flashing 2.

Change the NTC.

Fasten the connection cable.

Switch on the appliance.

If E2 still flashing 2.

Chance the cable harness

Turn on the appliance.

Is E2 flashing 3.

3.

Switch off the appliance.

Cut mains supply.

Change the electronic card.

Connect to mains supply.

Switch on the appliance.

6 720 660 238 (2008/07)

Troubleshooting | 45

A8

IS FLASHING

Bus communication interrupted

Order Control S tep

1.

Are EMS BUS (on St19) cables connected in parslled to toom control unit and other connected modules?

Check if room control unit and other modules have 15 VDC or not?

Yes:

No:

2.

3.

Check if LED on modules is flashing or not

Yes:

No:

Yes:

No:

4.

Electronic card is out of order.

Measure

2.

Fix cable connections make

Sure all modules and controllers have 15 VDC

Push the reset button.

If A8 still flashing 2.

3.

Change the room controller and push reset button.

If A8 still flashing 3.

Change the modules and push the reset button.

If A8 still flashing 4.

4.

Switch off the appliance.

Cut mains supply

Change the electronic card.

Connect to mains supply.

Switch on the appliance.

6 720 660 238 (2008/07) 45

46

46 | Troubleshooting

4.

EA

IS FLASHING

F lame not detected

Order C ontrol S tep

1. Check if Ionization electrode detect the flame or not?

2. Is the gas inlet valve open?

3. Is there air in the gas line?

Is the thermal shutdown valve triggered?

Yes:

No:

Yes:

No:

Yes:

No:

Yes:

5.

No:

Natural gas:

Is there any gas pressure regulator at the house entrance?

Yes:

LPG (liquid gas):

Is there sufficient gas flow in the

LPG line to operate appliance?

No:

Yes:

No:

Measure

6.

2.

3.

Open the gas inlet valve.

Push the reset button and switch on the appliance again.

If EA still flashing 3.

Untighten gas inlet measurement point screw on the gas value

Remove the air from gass line

Tighten gas value inlet meassurement point screw

Switch on the appliance and push reset button

4.

Change thermolshutdown valve

Push the reset button and turn on the appliance again.

Is EA flashing?

5.

5.

Check if the montage of the gas pressure regulator assembly is correct or not?

If necessory correct it.

Measure the gas inlet pressure. If there is a deviation inform the gas distributor company.

Push the reset button and turn on the appliance again.

If EA still flashing 6.

6.

6.

Is the tank full enough?

Is there any air in the gas pipe?

Is the external tank magnet valve tripgered?

Is the gas entry pressure OK? ( if too high check the regulator)

Correct the devistions

Turn on the appliance again

Push reset button

If EA still flashing 6.

6 720 660 238 (2008/07)

Troubleshooting | 47

7.

EA

IS FLASHING

F lame not detected

Order

6.

C ontrol S tep correctly?

Yes:

No:

Is the gas valve working?

Turn off the appliance.

Pull out the gas valve cables

Measure resistances

of the gas armature safety valves 1 and 2.

R=160±40?

Yes:

No:

8.

9.

Go to Service function 8.F.

Yes:

Is the continuous firing (without gas)

OK?

Check continuous ignition if it is igniting or not

No:

Check connection of ignition cable and electrode is correct or not?

Yes:

No:

10.

Check if ignition cable damaged or not?

Yes:

No:

Measure

7.

Correct ground connection

Push the reset button

If EA still flashing 7.

Connect cables

Turn on the appliance.

Push reset button

If EA still flashing 8.

Cut the mains supply of the appliance.

Close the gas inlet valve.

Change the gas valve.

Open the gas inlet valve.

Switch on the mains supply.

Connect cables

Turn on the appliance.

Make sure there is no gas leakage leaking.

Switch on appliance and push reset button

If EA still flashing 8.

Leave service function by pressing twice service button

If EA still flashing 9.

Leave service fuction by pressing twice service button

If EA still flashing 9.

10.

Correct the cable connection

Push reset button

If EA still flashing 10.

11.

Turn off the appliance.

Change ignition cable

Turn on the appliance.

Push reset button

If EA still flashing 11.

6 720 660 238 (2008/07) 47

48

48 | Troubleshooting

EA

IS FLASHING

Flame not detected

Order C ontrol S tep

11.

Is ionization electrode and ignition bridge assembled correctly?

Yes:

No:

12.

Check ignition electrodes for damage or oxidation?

Yes:

No:

Measures

12.

Correct the assembly

Push reset button

If EA still flashing 12.

Clean or change ignition electrodes

Turn on the appliance.

Push reset button

If EA still flashing?

13.

13.

13.

Check if main cable harness is damaged or not?

Yes:

14.

Electronic card is out of order.

No:

Turn off the appliance.

Cut the mains supply of the appliance.

Change the cable harness

Switch on the mains supply.

Turn on the appliance.

Push reset button

If EA still flashing 14.

14.

Switch of the appliance.

Cut mains supply

Change the electronic card.

Connect to mains supply.

Switch on the appliance.

6 720 660 238 (2008/07)

Troubleshooting | 49

F7

IS FLASHING

Flamed detected after appliance switched off.

Order Control Step

1.

Check ionization electrode Yes:

For damaged and/or oxidation

Measures

Clean or change ionization electrode

Switch on the appliance

Push reset button

If F7 still flashing 2.

2.

No:

2. Check if main cable harness is damaged or not?

3. Is the gas valve working?

4.

Turn off the appliance

Pull out the gas valve cables

Measure resistances

Of the gas armature safety valves 1 and 2.

R=160±40?

Electronic card is out of order.

Turn off the appliance

Cut the mains supply voltage of the appliance.

Change the cable harnedd

Switch on the mains supply voltage

Turn on the appliance

Push the reset button

If F7 still flashing 3.

Cut the mains supply voltage of the appliance.

Close the gas inlet valve

Change the gas valve

Open the gas inlet value

Switch on the mains supply

Connect cables

Turn on the appliance

Make sure there is no gas leakage

Switch on the appliance and push reset button

If F7 still flashing 4.

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

6 720 660 238 (2008/07) 49

50 | Troubleshooting d3

I

S FLASHING

Link 161 on St8 not detected

Order Control Step

1. Check if the link 161 is in position?

No:

2.

Electronic card is out of order

Yes:

Measures

Turn off the appliance

Insert link in St8

Switch on the appliance

If d3 still flashing 2.

2.

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

50 6 720 660 238 (2008/07)

b1

IS FLASHING

Code plug not detected

Order Control Step

1.

Check if code plýg is correct or not via service function 8.b.

Yes:

No:

2. Check if code plug is loose or not?

3. Electronic card is out of order

Yes:

No:

Measures

2.

Install correct code plug

Restart appliance.

If b1 still flashing 2.

Install code plug correctly

Restart the appliance

If b1 still flashing 3.

3.

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

Troubleshooting | 51

6 720 660 238 (2008/07) 51

52

52 | Troubleshooting

A9

IS FLASHING

DHW NTC not installed correctly

Order Control Step

1.

Check if DHW NTC at its position or not?

Yes:

No:

2.

Check if water NTC damaged or not?

Turn off the appliance

Put NTC cables out

Measure resistance of NTC

Yes:

No:

Measures

2.

Install DHW NTC onits position

Restart appliance

Tap water for 3 minutes

If A9 flashes again 2.

Change NTC

Restart appliance

Tap water for 3 minutes

If A9 flashes again 3.

3.

3.

4.

Check if the cables are damaged or not?

Turn off the appliance.

If NTC changed:

· - Pull the NTC cables out.

· - Measure the sensor resistance.

- Reconnect the NTC cables

Pull out the 20 poled RAS5 connector on control unit

Measure DHW NTC resistance

Is there deviation of resistance values between two messurements?

Electronic card is out of order

Yes:

No: 4.

Change cable harness

Restart appliance

Tap water for 3 minutes

If A9 flashes again 4.

Switch off the appliance.

Cut mains supply

Change the electronic card.

Connect to mains supply

Switch on the appliance.

6 720 660 238 (2008/07)

4.

Electronic card is out of order

Troubleshooting | 53

FA

IS FLASHING

Flame detected, after gas istumed off.

Order Control S tep

1.

Check if electrodes are damaged or oxidized?

Yes:

2.

Is the gas valve working?

Turn off the appliance.

Pull out the gas valve cables

Measure resistances

of the gas armature safety valves 1 and 2.

R=160±40?

No:

Yes:

No:

Measures

Clean or if needed

Change electrode set

Restart appliance

Push reset button

Close gas inlet valve

If FA flashes again, 2.

2.

Connect cables

Turn on the appliance.

Push reset button

Close the gas inlet valve

If FA still flashing 3.

Cut the mains supply of the appliance.

Change the gas valve.

Open the gas inlet valve.

Switch on the mains supply.

Connect cables

Turn on the appliance.

Make sure there is no gas leakage leaking.

Switch on appliance and push reset button

Close the gas inlet valve.

If FA still flashing 3.

3.

Check if main cable harness is damaged or not?

Turn off the appliance.

Cut the mains supply of the appliance.

Change the cable harness

Switch on the mains supply.

Turn on the appliance.

Push reset button

Close gas inlet valve

If FA still flashing 4.

Switch off the appliance

Cut mains supply

Change the elecronic card

Connect to mains supply

Switch on the appliance

6 720 660 238 (2008/07) 53

54

54 | Troubleshooting

E0/F0

IS FLASHING

Internal failure

Order Control S tep

1.

Check all cable connections for any intermittent contact?

Yes:

No:

Measures

Correct the cable connection

Reset appliance

If EO/FO flashing, 2.

Enter the 8.C and 8.d

Record displayed values to the service report

2.

2.

Electronic card is out of order

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

Fd

IS FLASHING

Reset butto n pressed too long

Order Control S tep

1. Check if reset button remains pressed Yes:

No:

2.

Electronic card is out of order.

Measures

Pull the reset button and restart the appliance again

If Fd still flashing, 2.

2.

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

6 720 660 238 (2008/07)

3.

2.

AA

IS FLASHING

Plate heat exchange r blocked or DHW NTC is not at its position

Order Control S tep

1.

Check if DHW NTC at its position or not?

Yes:

No:

Measure

2.

Install DHW NTC onits position

Restart appliance

Tap water for 3 minutes

Check if plate heat exchanger (PHE) blocked or not?

Yes:

If AA flashes again 2.

Clean PHE or replace if needed

Restart appliance

No:

3.

Electronic card is out of order

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supplyu

Switch on the appliance

1.

D5

IS FLASHING

IPMx modules NTC is defective

Order Control S tep

Check IPMx module NTC

Measures

Change flow NTC on IPMx module

Troubleshooting | 55

D 7

IS FLASHING

The gas valve cables not connected

Order Control S tep

1.

Check cable connections to gas valve

Measures

Connect cables to gas valve

6 720 660 238 (2008/07) 55

56 | Gas Setting Values

7.1. ZWE 24/28-5 MFK/MFA MFAE types

7.1.1. ZWE24-5 MFK

7.1.1.1. For countries with country codes: S5992 / S7492

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18,0

19,2

20,4

21,6

22,9

24

Table 6

Burner Pressure Gas flow mbar

G20_20mbar lt/min kg/h

G30_29mbar G20_20mbar G30_29mbar

1,2

2,0

2,5

3,1

3,4

4,4

5,0

5,7

6,5

7,2

8,0

8,8

9,7

10,7

3,0

5,1

6,4

7,8

8,7

11,2

12,9

14,8

16,8

18,9

21,1

23,4

25,9

28,5

14,5

18,9

21,2

23,5

24,8

28,2

30,5

32,7

35,0

37,2

39,4

41,5

43,9

46,0

1,5

1,6

1,7

1,8

1,8

2,0

2,0

0,7

0,9

1,0

1,1

1,1

1,3

1,4

7.1.1.2. For countries with country codes: S5792 / S7192

Gas type

Power (kW)

/Country code

7

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

21,6

22,9

24

Table 7

Burner Pressure Gas flow mbar lt/min kg/h

G20_13mbar G30_29mbar G20_13mbar G30_29mbar

1,1

1,2

2,0

2,5

3,0

3,3

4,3

4,9

5,6

6,4

7,1

7,9

8,7

9,8

-

3,0

5,1

6,4

7,8

8,7

11,2

12,9

14,8

16,8

18,9

21,1

23,4

25,9

28,5

14,0

14,6

18,9

21,2

23,6

24,9

28,4

30,6

32,9

35,2

37,4

39,7

41,9

44,4

1,6

1,7

1,8

1,8

2,0

2,0

1,1

1,3

1,4

1,5

-

0,7

0,9

1,0

1,1

56 6 720 660 238 (2008/07)

Gas Setting Values | 57

7.1.1.3. For countries with country codes: S0492 / NGLM24-4 HN S0492

Gas type

Power (kW)

/Country code

7,3

8,5

9,5

11,0

11,9

12,6

14,4

15,6

16,8

18,0

19,2

20,4

22,0

23,2

24,0

Table 8

Burner Pressure Gas flow mbar lt/min kg/h

G20_20mbar G30_29mbar G20_20mbar G30_29mbar

1,2

1,6

2,0

2,5

3,1

3,4

4,3

5,0

5,7

6,4

7,2

8,0

9,1

9,9

10,6

3,0

3,0

4,0

5,0

6,3

7,7

8,5

11,0

12,8

14,6

16,6

18,7

20,9

23,9

28,5

14,2

16,5

18,5

20,7

23,0

24,4

27,8

30,0

32,3

34,5

36,8

39,0

42,0

44,2

45,7

1,3

1,4

1,5

1,6

1,7

1,7

1,9

2,0

0,7

0,7

0,8

0,8

1,0

1,1

1,1

7.1.1.4. For countries with country codes: S5092

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

19,2

20,4

21,6

22,9

24

12,6

14,4

15,6

16,8

18

Table 9

G20_20mbar

Burner Pressure Gas flow mbar lt/min kg/h lt/min

G30_29mbar G25.1_25mbar

G20_20mbar G30_29mbar G25.1_25mbar

1,2

2,0

2,5

3,1

3,4

4,4

5,0

5,7

6,5

7,2

8,0

8,8

9,7

10,7

3,0

5,1

6,4

7,8

8,7

11,2

12,9

14,8

16,8

18,9

21,1

23,4

26,0

28,5

1,0

2,0

2,6

3,1

3,6

4,5

5,2

6,0

6,9

7,7

8,7

9,8

11,0

12,1

14,5

18,0

21,2

23,5

24,8

28,2

30,5

32,7

35,0

37,2

39,4

41,5

43,9

46,0

0,7

0,9

1,0

1,1

1,1

1,3

1,4

1,5

1,6

1,7

1,8

1,8

2,0

2,0

37,6

40,3

43,0

45,6

48,3

51,0

53,7

16,8

21,5

24,2

26,9

29,5

32,2

34,9

6 720 660 238 (2008/07) 57

58 | Gas Setting Values

7.1.2. ZWE24-5 MFA

7.1.2.1 For countries with country codes: S4900 / S5900 / 7400

Gas type

Power (kW)

/Country code

7,3

7,5

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18,0

19,2

20,4

21,6

22,9

24

Table 10

Burner Pressure Gas flow mbar lt/min kg/h

G20_20mbar G30_29mbar G31_37mbar G20_20mbar G30_29mbar

1,3

1,4

2,2

2,7

3,3

3,7

4,7

5,5

6,3

7,2

8,0

9,0

9,9

11,0

12,1

2,7

2,8

4,6

5,8

7,1

8,0

10,4

12,2

14,1

16,2

18,3

20,7

23,1

25,9

28,5

4,0

4,2

6,6

8,3

10,1

11,2

14,3

16,5

18,9

21,4

23,9

26,6

29,3

32,3

35,5

14,5

14,9

18,8

21,1

23,4

24,7

28,2

30,4

32,7

34,9

37,1

39,3

41,5

43,9

46,0

1,5

1,6

1,7

1,8

1,8

2,0

2,0

1,1

1,1

1,3

1,4

0,7

0,7

0,8

1,0 kg/h

G31_37mbar

1,4

1,5

1,6

1,7

1,8

1,9

2,0

1,0

1,1

1,2

1,3

0,6

0,7

0,8

0,9

7.1.2.2 For countries with country codes: S5700 / S7100

Gas type

Power (kW)

/Country code

7,3

7,5

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18,0

19,2

20,4

21,6

22,9

24

Table 11

Burner Pressure Gas flow mbar

G20_13mbar lt/min kg/h

G30_29mbar G20_13mbar G30_29mbar

-

0,8

1,3

1,7

2,1

2,3

3,1

3,7

4,4

5,1

5,9

6,7

7,7

8,7

9,6

2,7

2,8

4,6

5,8

7,1

8,0

10,4

12,2

14,1

16,2

18,3

20,7

23,1

25,9

28,5

-

14,8

18,7

21,1

23,4

24,8

28,2

30,5

32,8

35,1

37,4

39,7

41,9

44,4

46,5

1,8

1,8

2,0

2,0

1,4

1,5

1,6

1,7

0,7

0,7

0,8

1,0

1,1

1,1

1,3

58 6 720 660 238 (2008/07)

Gas Setting Values | 59

7.1.2. ZWE24-5 MFA

7.1.2.3. For countries with country codes: S0700

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

19,2

20,4

21,6

22,8

24,7

12,6

14,4

15,6

16,8

18

Table 12

Burner Pressure Gas flow mbar lt/min kg/h

G25_25mbar G30_29mbar G25_25mbar G30_29mbar

1,5

2,5

3,2

3,9

4,3

5,6

6,5

7,5

8,5

9,6

10,8

12,0

13,3

15,5

2,7

4,6

5,8

7,1

8,0

10,4

12,2

14,1

16,2

18,3

20,7

23,1

25,9

28,5

16,9

21,9

24,6

27,3

28,9

33,0

35,7

38,4

41,0

43,7

46,4

49,0

51,9

56,0

1,3

1,4

1,5

1,6

0,7

0,8

1,0

1,1

1,1

1,7

1,8

1,8

1,9

2,0

7.1.2.4 For countries with country codes: S5000

Gas type

Power (kW)

/Country code

7,3

8,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

21,6

22,8

24

Table 13

G20_20mbar

Burner Pressure mbar lt/min

Gas flow kg/h lt/min

G30_29mbar G25.1_25mbar

G20_20mbar G30_29mbar G25.1_25mbar

1,3

1,7

2,2

2,7

3,3

3,7

4,7

5,5

6,3

7,2

8,0

9,0

9,9

11,0

12,1

2,7

3,5

4,6

5,8

7,1

8,0

10,4

12,2

14,1

16,2

18,3

20,7

23,1

25,9

28,5

-

1,0

1,8

2,3

3,0

3,5

4,5

5,3

6,1

6,9

7,8

8,8

9,8

11,0

12,1

14,5

16,4

18,8

21,1

23,4

24,7

28,2

30,5

32,7

34,9

37,1

39,4

41,5

43,9

46,0

0,7

0,8

0,8

1,0

1,1

1,1

1,3

1,4

1,5

1,6

1,7

1,8

1,8

1,9

2,0

33,0

35,6

38,3

41,0

43,6

46,5

48,9

51,6

54,3

-

18,8

22,0

24,7

27,5

29,5

6 720 660 238 (2008/07) 59

60 | Gas Setting Values

7.1.3. ZWE24-5 MFA E / NGVM24-4 HN

7.1.3.1 For countries with country codes: S0400 NGVM24-4 HN S0407

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

21,6

22,8

24

Table 14

Burner Pressure Gas flow mbar lt/min kg/h

G20_20mbar G30_29mbar G20_20mbar G30_29mbar

0,8

1,4

1,8

2,3

2,6

3,6

4,4

5,3

6,3

7,4

8,6

9,9

11,4

12,6

2,4

4,1

5,2

6,5

7,3

9,6

11,3

13,2

15,2

17,4

19,8

22,3

25,0

27,7

13,9

18,1

20,3

22,6

23,9

27,2

29,4

31,6

33,8

36,0

38,1

40,3

42,5

44,7

1,5

1,6

1,7

1,8

1,8

1,9

0,6

0,8

0,9

1,0

1,1

1,2

1,3

1,4

7.1.4. ZWE28-5 MFA / 29 VRC

7.1.4.1 For countries with country codes: S4900 / S5900 / S7400

Gas type

Power (kW)

/Country code

8,6

9,9

10,6

11,7

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

26,7

28,1

Table 15

G20_20mbar

Burner Pressure Gas flow mbar lt/min kg/h

G30_29mbar G31_37mbar G20_20mbar G30_29mbar

0,8

1,1

1,3

1,6

2,2

2,8

3,6

4,6

5,5

6,8

8,4

10,0

11,8

14,1

15,7

2,5

3,3

3,8

4,7

5,9

7,4

9,0

10,8

12,6

14,8

17,5

20,1

22,9

26,3

29,1

3,3

4,4

5,1

6,2

7,8

9,6

11,6

13,9

16,0

18,7

22,0

25,2

28,5

32,6

36,1

16,9

19,5

20,8

22,9

25,6

28,5

31,1

34,0

36,4

39,3

42,4

45,2

48,0

51,1

53,8

2,0

2,2

2,3

2,4

1,5

1,7

1,8

1,9

0,8

0,9

1,0

1,1

1,2

1,3

1,4 kg/h

G31_37mbar

1,9

2,0

2,1

2,3

1,5

1,6

1,7

1,8

0,7

0,9

0,9

1,0

1,1

1,2

1,3

60 6 720 660 238 (2008/07)

7.1.4.2 For countries with country codes: S5700/S7100

Burner Pressure mbar lt/min

Gas flow kg/h

G20_13mbar G30_29mbar G20_13mbar G30_29mbar Gas type

Power (kW)

/Country code

8,6

9,9

10,6

11,7

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

26,7

28,1

Table 16

3,4

4,1

5,0

6,0

7,0

8,3

9,2

1,4

1,8

2,2

2,8

-

-

0,9

1,0

12,6

14,8

17,5

20,1

22,9

26,3

29,1

2,5

3,3

3,8

4,7

5,9

7,4

9,0

10,8

36,7

39,4

42,6

45,3

48,1

51,1

53,8

-

-

21,0

23,2

25,9

28,7

31,4

34,2

1,7

1,8

1,9

2,0

2,2

2,3

2,4

1,2

1,3

1,4

1,5

0,8

0,9

1,0

1,1

7.1.4.3 For countries with country codes: S0700

Gas type

Power (kW)

/Country code

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 17

Burner Pressure Gas flow mbar

G25_25mbar lt/min kg/h

G30_29mbar G25_25mbar G30_29mbar

0,8

1,1

1,3

1,6

2,2

2,8

3,6

4,6

5,5

6,8

8,4

10,0

11,8

14,2

15,9

2,5

3,3

3,8

4,7

5,9

7,4

9,0

10,8

12,6

14,8

17,5

20,1

22,9

26,3

29,1

19,5

22,4

24,0

26,3

29,7

33,0

36,2

39,6

42,5

45,9

49,7

53,0

56,4

61,0

63,3

1,7

1,8

1,9

2,0

2,2

2,3

2,4

1,2

1,3

1,4

1,5

0,8

0,9

0,9

1,0

Gas Setting Values | 61

6 720 660 238 (2008/07) 61

62 | Gas Setting Values

7.1.4.4 For countries with country codes: S5000

Gas type

Power (kW)

/Country code

8,6

9,4

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 18

Burner Pressure Gas flow mbar lt/min kg/h lt/min

G20_20mbar G30_29mbar G25.1_25mbar

G20_20mbar G30_29mbar G25.1_25mbar

0,8

1,0

1,1

1,3

1,6

2,2

2,8

3,6

4,6

5,5

6,8

8,4

10,0

11,8

14,2

15,7

2,5

3,0

3,3

3,8

4,7

5,9

7,4

9,0

10,8

12,6

14,8

17,5

20,1

22,9

26,3

29,1

-

1,0

1,2

1,4

1,7

2,3

2,8

3,6

4,6

5,5

6,7

8,2

9,7

11,4

13,7

15,2

16,9

18,4

19,5

20,6

22,4

25,6

28,5

31,2

34,0

36,4

39,3

42,4

45,2

48,0

51,7

53,8

0,8

0,8

0,9

0,9

1,0

1,2

1,3

1,4

1,5

1,7

1,8

1,9

2,0

2,2

2,3

2,4

36,2

39,5

42,4

45,5

49,2

53,6

56,5

60,0

62,3

-

21,0

22,4

23,9

25,7

29,4

33,1

62 6 720 660 238 (2008/07)

7.1.5 ZWE28-5 MFA E / NGVM28-4 HN

7.1.5.1 For countries with country codes:S0400 / S0407

Gas type

Power (kW)

/Country code

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 19

Burner Pressure Gas flow mbar

G20_20mbar lt/min kg/h

G30_29mbar G20_20mbar G30_29mbar

1,1

1,5

1,7

2,0

2,7

3,4

4,1

5,0

5,9

7,0

8,4

9,8

11,3

13,5

14,6

2,4

3,2

3,6

4,2

5,6

7,0

8,4

10,1

11,7

13,7

16,2

18,5

21,0

24,7

26,7

16,5

19,0

20,1

21,8

25,0

27,7

30,3

33,0

35,4

38,1

41,1

43,8

46,4

49,9

52,0

1,9

2,1

2,2

2,3

1,4

1,6

1,7

1,8

0,7

0,8

0,9

0,9

1,1

1,2

1,3

Gas Setting Values | 63

6 720 660 238 (2008/07) 63

64 | Gas Setting Values

7.2 ZWC/ZSC 18/21/24/28/30/35-3 MFK / MFKP / MFA / MFAP / MFAE / MFAM

7.2.1 ZWC/ZSC 18-3 MFK

7.2.1.1 For countries with country codes: S5092

G20_20mbar

Burner Pressure mbar

G30_29mbar G25.1_25mbar

lt/min

G20_20mbar

Gas flow kg/h lt/min

G30_29mbar G25.1_25mbar

Gas type

Power (kW)

/Country code

5,5

6,5

7,5

8,5

9,5

10,5

11,5

12,5

13,5

14,5

15,5

16,5

17,5

18,0

Table 20

7,1

8,3

9,5

10,8

12,2

13,7

14,5

1,4

2,0

2,6

3,3

4,1

5,0

6,0

14,5

16,8

19,1

21,6

24,2

26,9

28,5

3,0

4,2

5,5

7,0

8,7

10,5

12,4

6,7

7,9

9,1

10,4

11,8

13,2

14,0

1,3

1,8

2,4

3,1

3,9

4,7

5,7

24,3

26,2

28,1

30,0

31,9

33,7

34,7

10,8

12,8

14,7

16,6

18,6

20,5

22,4

1,1

1,2

1,3

1,3

1,4

1,5

1,6

0,5

0,6

0,7

0,7

0,8

0,9

1,0

29,1

31,4

33,6

35,8

38,0

40,3

41,4

13,0

15,4

17,7

20,0

22,3

24,6

26,8

64 6 720 660 238 (2008/07)

Gas Setting Values | 65

7.2.2 ZWC/ZSC24-3 MFK (P) / NGLA/NGLS24-4 HN

7.2.2.1 For countries with country codes: S0492 S3593 / S3792 / S4892 / S5092 / S5292 S6092 / S6192 / S6492

/ S7292 /S7392 / S7492 , S0492

Gas type

Power (kW)

/Country code

15,6

16,8

18

19,2

20,4

22

23,2

24

7,1

7,3

8,5

9,5

10,7

11,9

12,6

14,4

Table 21

Burner Pressure

G20_20mbar G30_29mbar mbar

G31_37mbar

S6092, S6192,

S7392, S7492

6,5

7,5

8,5

9,6

10,7

12,3

13,5

14,5

3,2

3,9

4,3

5,6

-

1,5

2,0

2,5

3,1

3,3

4,4

5,4

6,8

8,3

9,3

11,9

13,8

15,8

17,9

20,1

22,4

25,6

28,5

-

17,5

20,0

22,6

25,3

28,1

31,9

35,5

-

4,0

4,2

5,7

7,0

8,7

10,6

11,8

15,1

S5092

Gas flow lt/min kg/h

G25.1_25mbar

G20_20mbar G30_29mbar kg/h

G31_37mbar

S6092, S6192,

S7392, S7492

6,7

7,7

8,7

9,8

11,0

12,5

13,7

14,7

3,3

4,1

4,5

5,8

-

1,6

2,1

2,7

-

14,5

16,9

18,8

21,1

23,4

24,8

28,2

30,5

32,7

34,9

37,2

39,4

42,3

44,5

46,0

0,6

0,6

0,7

0,8

0,9

1,0

1,1

1,3

1,4

1,5

1,6

1,7

1,7

1,9

2,0

-

1,7

1,9

2,0

-

1,3

1,4

1,5

1,6

0,9

1,0

1,1

1,2

0,6

0,6

0,7

0,8 lt/min

G25.1_25mbar

S5092

35,7

38,3

40,9

43,5

46,0

49,4

51,8

53,6

-

17,2

19,9

22,2

24,9

27,6

29,1

33,1

7.2.2.2 For countries with country codes: S3692

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

21,6

22,8

23,2

24

Table 22

Burner Pressure mbar

G20_20mbar G30_29mbar G25_25mbar

Gas flow lt/min kg/h lt/min

G20_20mbar G30_29mbar G25_25mbar

1,9

3,2

4,0

4,9

5,5

7,0

8,1

9,2

10,4

11,7

13,0

14,3

15,7

16,4

17,4

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18,0

19,2

20,4

21,6

22,8

23,2

-

1,9

3,2

4,1

5,1

5,7

7,5

8,8

10,2

11,8

13,4

15,2

17,0

19,0

19,4

21,1

14,7

19,1

21,6

24,0

25,4

29,0

31,5

33,9

36,3

38,8

41,2

43,6

45,0

47,0

48,5

0,3

0,5

0,6

0,7

0,8

1,1

1,2

1,4

1,6

1,8

2,0

2,2

2,4

2,5

-

35,4

37,9

40,3

42,8

45,2

47,0

48,0

50,2

15,5

20,2

22,7

25,2

26,7

30,4

32,9

6 720 660 238 (2008/07) 65

66 | Gas Setting Values

72.2.3 For countries with country codes: S5792 / S7192

Gas type

Power (kW)

/Country code

6,7

7,1

7,3

8,5

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

22

23,2

24

Table 23

Burner Pressure mbar

G20_13mbar G30_29mbar G31_37mbar

Gas flow lt/min kg/h kg/h

G20_13mbar G30_29mbar G31_37mbar

1,0

1,1

1,2

1,6

2,0

2,5

3,0

3,4

4,3

5,0

5,7

6,5

7,3

8,2

9,5

-

-

-

3,1

3,3

4,4

5,4

6,8

8,3

9,3

11,9

13,8

15,8

17,9

20,1

22,4

25,6

28,5

-

-

4,0

4,2

5,7

7,0

8,7

10,6

11,8

15,1

17,5

20,0

22,6

25,3

28,1

31,9

35,5

-

0,8

0,8

0,9

1,0

1,1

1,3

1,4

1,5

1,7

1,8

1,9

2,1

2,2

2,3

2,5

-

-

-

0,6

0,6

0,7

0,8

0,9

1,0

1,1

1,3

1,4

1,5

1,6

1,7

1,7

1,9

2,0

-

1,6

1,7

1,9

2,0

-

1,1

1,2

1,3

1,4

1,5

-

0,6

0,6

0,7

0,8

0,9

1,0

7.2.2.4 For countries with country codes: S5392

Gas type

Power (kW)

/Country code

6,7

7,1

7,3

8,5

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

22

23,2

24

Table 24

Burner Pressure Gas flow mbar m^3/h m^3/h m^3/h kg/h

GZ50_20mbar GZ35_13 mbar GZ41.5_20 mbar G30_37mbar GZ50_20 mbar GZ35_13 mbar GZ41.5_20 mbar G30_37 mbar

-

-

1,5

2,0

2,5

3,2

3,9

4,3

5,6

6,5

7,5

8,5

9,6

10,7

12,3

13,5

14,5

-

-

0,8

1,1

1,3

1,7

2,1

2,3

3,0

3,5

4,0

4,6

5,1

5,8

6,6

7,3

7,8

-

-

1,2

1,6

2,0

2,5

3,1

3,4

4,4

5,1

5,9

6,7

7,5

8,3

9,5

10,5

11,2

-

3,1

3,3

4,4

5,4

6,8

8,3

9,3

11,9

13,8

15,8

17,9

20,1

22,4

25,6

28,5

-

-

-

0,9

1,0

1,1

1,3

1,4

1,5

1,7

1,8

2,0

2,1

2,2

2,4

2,5

2,7

2,8

-

-

1,2

1,4

1,6

1,8

2,0

2,1

2,4

2,6

2,8

2,9

3,1

3,3

3,6

3,7

3,9

-

-

1,1

1,3

1,4

1,6

1,7

1,8

2,1

2,3

2,4

2,6

2,8

2,9

3,1

3,3

3,4

1,6

1,7

1,7

1,9

1,1

1,3

1,4

1,5

-

0,6

0,6

0,7

0,8

0,9

1,0

2,0

-

66 6 720 660 238 (2008/07)

7.2.3 ZWC/ZSC24/28-3 MFK - Dual output

7.2.3.1 For countries with country codes: S3593 / S3792

Gas type

Power (kW)

/Country code

7,3

9

10,4

11,5

12,7

13,8

15,7

18,2

21,1

22,5

24 (for CH)

28,1 (for DHW)

Table 25

Burner Pressure mbar

G20_20mbar G30_29mbar

Gas flow lt/min

G20_20mbar kg/h

G30_29mbar

1,0

1,5

2,0

2,4

3,0

3,5

4,4

5,9

7,8

8,7

10,8

13,5

2,1

3,2

4,2

5,1

6,2

7,2

9,2

12,1

15,8

17,7

19,9

27,3

14,0

17,3

19,9

22,1

24,4

26,5

30,1

34,9

40,5

43,2

46,1

54,0

0,6

0,8

0,9

1,0

1,1

1,2

1,4

1,6

1,8

1,9

2,0

2,4

Gas Setting Values | 67

6 720 660 238 (2008/07) 67

68 | Gas Setting Values

7.2.4 ZWC/ZSC28-3 MFK

7.2.4.1 For countries with country codes: S0492 / S3593 / S3792 / S5092 / S5292 / S5992 / S6092 / S6192

S7292 / S7392 / S7492

Gas type

Power (kW)

/Country code

8,6

9,5

10,5

11,7

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

26,1

27,1

28,1

Table 26

7,0

8,1

9,4

10,7

12,0

13,1

14,0

15,1

3,4

4,3

5,1

6,0

1,5

1,8

2,2

2,8

G20_20mbar

15,3

17,5

20,2

22,7

25,3

27,3

29,4

-

3,5

4,3

5,2

6,3

7,8

9,6

11,4

13,4

Burner Pressure mbar

G30_29mbar G31_37mbar

S6092, S6192,

S7392, S7492

18,6

21,6

25,2

28,6

32,2

35,0

-

-

4,0

4,9

5,9

7,4

9,2

11,4

13,6

16,2

S5092

7,2

8,3

9,6

10,8

12,1

13,1

14,0

15,1

3,6

4,5

5,3

6,3

1,6

2,0

2,4

2,9

Gas flow lt/min kg/h

G25.1_25mbar

G20_20mbar G30_29mbar

16,9

18,7

20,6

22,9

25,6

28,5

31,1

34,0

36,4

39,3

42,4

45,2

48,0

50,0

51,9

53,8

0,8

0,8

0,9

1,0

1,2

1,3

1,4

1,5

1,6

1,8

1,9

2,0

2,1

2,2

2,3

kg/h

G31_37mbar

S6092, S6192,

S7392, S7492

2,1

2,2

-

-

1,6

1,7

1,8

2,0

1,1

1,2

1,3

1,4

0,7

0,8

0,8

0,9 lt/min

G25.1_25mbar

S5092

43,0

46,4

50,3

53,6

57,0

59,5

61,8

53,8

19,8

21,8

24,1

26,8

30,0

33,5

36,6

40,1

7.2.4.2 For countries with country codes: S3692

Gas type

Power (kW)

/Country code

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 27

G20_20mbar

Burner Pressure mbar

G30_29mbar G25_25mbar

Gas flow lt/min kg/h lt/min

G20_20mbar G30_29mbar G25_25mbar

2,0

2,7

3,0

3,5

4,5

5,5

6,5

7,6

8,7

9,9

11,4

12,8

14,2

16,2

17,5

2,6

3,4

3,8

4,4

5,6

6,7

7,8

9,0

10,0

11,2

12,5

13,6

14,7

16,0

17,3

2,0

2,7

3,0

3,5

4,7

5,8

7,0

8,4

9,7

11,4

13,4

15,3

17,4

20,3

22,0

17,5

20,1

21,3

23,1

26,3

29,2

31,8

34,5

36,9

39,6

42,6

45,2

47,8

51,2

53,3

0,8

0,9

0,9

1,0

1,2

1,3

1,4

1,5

1,6

1,7

1,9

2,0

2,1

2,3

2,4

42,7

46,0

48,8

51,6

55,2

57,5

19,0

21,8

23,0

24,9

28,4

31,5

34,3

37,3

39,8

68 6 720 660 238 (2008/07)

Gas Setting Values | 69

7.2.4.3 For countries with country codes: S5792 / S7192

G20_13mbar

Burner Pressure mbar

G30_29mbar G31_37mbar

Gas flow lt/min kg/h kg/h

G20_13mbar G30_29mbar G31_37mbar Gas type

Power (kW)

/Country code

8,3

8,4

8,6

9,5

10,5

11,7

13,1

14,6

16,0

17,5

18,8

20,3

22,0

23,5

25,0

26,1

27,0

27,1

28,1

Table 28

6,8

7,7

8,3

8,9

3,3

3,9

4,4

5,2

6,0

-

-

1,4

1,8

2,2

2,7

0,9

0,9

1,0

1,2

72.4.4 For countries with country codes: S5392

11,4

13,5

15,4

17,7

20,4

22,9

25,6

27,6

29,2

29,4

-

5,2

6,4

7,9

9,6

-

-

3,5

4,3

13,6

16,2

18,6

21,6

25,2

28,6

32,2

35,0

-

-

-

-

-

4,0

4,9

5,9

7,4

9,2

11,4

2,7

2,9

3,0

3,1

1,9

2,0

2,2

2,4

2,6

-

-

1,2

1,4

1,5

1,7

1,0

1,0

1,0

1,1

2,0

2,1

2,2

2,3

1,4

1,5

1,6

1,8

1,9

2,3

-

0,9

1,0

1,2

1,3

-

-

0,8

0,8

2,0

2,1

2,2

-

1,3

1,4

1,6

1,7

1,8

-

-

0,8

0,9

1,1

1,2

-

-

0,7

0,8

Gas type

Power (kW)

/Country code

18,8

20,3

22,0

23,5

25,0

26,1

27,0

27,1

28,1

8,3

8,4

8,6

9,5

10,5

11,7

13,1

14,6

16,0

17,5

Table 29

GZ50_20mbar

Burner Pressure

GZ35_13 mbar mbar

GZ41.5_20 mbar G30_37mbar

Gas flow m^3/h m^3/h m^3/h kg/h

GZ50_20 mbar GZ35_13 mbar GZ41.5_20 mbar G30_37mbar

-

-

1,5

1,8

2,2

2,8

3,4

4,3

5,1

6,0

7,0

8,1

9,4

10,7

12,0

13,1

13,9

14,0

15,1

-

0,8

0,8

1,0

1,2

1,5

1,8

2,2

2,6

4,9

3,4

3,9

4,4

4,9

5,4

5,8

6,2

-

-

-

-

1,3

1,6

1,9

2,3

2,9

3,5

4,2

4,9

5,6

6,4

7,3

8,2

9,0

9,7

10,3

10,3

11,1

-

-

4,2

5,1

6,2

7,6

9,5

11,6

13,8

16,3

18,6

21,5

24,9

28,0

31,3

33,5

35,9

36,1

-

-

-

1,0

1,1

1,2

1,4

1,5

1,7

1,9

2,0

2,2

2,4

2,5

2,7

2,9

3,0

3,1

3,1

3,2

-

1,4

1,5

1,6

1,8

2,0

2,2

2,5

2,7

3,8

3,1

3,3

3,6

3,8

4,0

4,2

4,3

-

-

-

-

1,2

1,4

1,5

1,7

1,9

2,1

2,3

2,5

2,7

2,9

3,1

3,3

3,5

3,7

3,8

3,8

3,9

2,1

2,2

2,3

2,3

-

1,6

1,8

1,9

2,0

1,2

1,3

1,4

1,5

-

-

0,8

0,8

0,9

1,0

6 720 660 238 (2008/07) 69

70 | Gas Setting Values

7.2.5 NGLA/NGLS28-4HN…

7.2.5.1 For countries with country codes: S0492

Gas type

Power (kW)

/Country code

8,6

9,5

10,5

11,7

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

26,1

27,1

28,1

Table 30

NGLA/NGLS28-4HN S0492

Burner Pressure mbar

G20_20mbar G30_29mbar

Gas flow lt/min

G20_20mbar kg/h

G30_29mbar

1,5

1,8

2,2

2,8

3,4

4,3

5,1

6,0

7,0

8,1

9,4

10,7

12,0

13,1

14,0

15,1

3,5

4,3

5,2

6,3

7,8

9,6

11,4

13,4

15,3

17,5

20,2

22,7

25,3

27,3

29,4

-

16,9

18,7

20,6

22,9

25,6

28,5

31,1

34,0

36,4

39,3

42,4

45,2

48,0

50,0

51,9

53,8

1,5

1,6

1,8

1,9

2,0

2,1

2,2

2,3

-

0,8

0,8

0,9

1,0

1,2

1,3

1,4

7.2.5.2 For countries with country codes: S0292

Gas type

Power (kW)

/Country code

14,6

16

17,5

18,8

20,3

22

23,5

25

7,3

8,6

9,5

10,5

11,7

13,1

26,1

27

28,1

Table 31

G20_20mbar

Burner Pressure mbar

G30_29mbar G25_25mbar lt/min

G20_20mbar

Gas flow kg/h

G30_29mbar lt/min

G25_25mbar

-

2,1

2,6

3,1

3,8

4,6

5,7

6,7

7,8

8,8

10,1

11,5

12,8

14,2

15,2

16,0

17,3

-

2,6

3,2

3,9

4,8

6,0

7,5

8,9

10,7

12,3

14,3

16,8

19,2

21,7

23,6

25,2

27,3

2,1

2,9

3,8

4,2

4,9

6,3

7,7

9,0

10,5

11,9

13,5

15,4

17,1

18,8

20,0

21,1

22,9

-

16,9

18,7

20,6

22,9

25,6

28,5

31,2

34,0

36,5

39,4

42,6

45,4

48,2

50,2

51,9

54,0

-

0,8

0,8

0,9

1,0

1,2

1,3

1,4

1,5

1,6

1,8

1,9

2,1

2,2

2,3

2,3

2,4

31,8

34,7

37,8

40,4

43,4

46,8

49,7

52,7

16,2

19,1

21,9

23,2

25,1

28,7

54,2

56,5

58,8

70 6 720 660 238 (2008/07)

Gas Setting Values | 71

7.2.6 ZWC/ZSC21-3 MFA

7.2.6.1 For countries with country codes: S5300

Gas type

Power (kW)

/Country code

6,3

7

8,5

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

21

Table 32

GZ50_20mbar

ZWC/ZSC21-3 MFA S5300

Burner Pressure mbar

GZ35_13 mbar GZ41.5_20mbar

G30_37mbar

Gas flow m^3/h m^3/h m^3/h

GZ50_20mbar GZ35_13 mbar GZ41.5_20 mbar kg/h

G30_37mbar

3,4

4,4

5,0

6,7

8,1

1,1

1,4

2,1

2,6

9,6

11,3

13,1

15,7

1,0

1,3

1,8

2,1

2,9

-

-

-

0,8

3,6

4,4

5,3

7,5

2,6

3,3

3,8

5,2

6,3

0,8

1,0

1,3

2,0

7,5

8,9

10,4

12,5

2,0

2,5

3,6

4,6

5,8

7,2

8,0

10,5

12,3

14,3

16,4

18,7

22,4

1,3

1,4

1,5

1,7

1,8

0,8

0,9

1,0

1,1

2,0

2,1

2,2

2,4

1,6

1,8

1,9

2,1

2,3

-

-

-

1,4

2,5

2,7

2,9

3,4

1,5

1,7

1,8

2,0

2,2

0,9

1,0

1,1

1,4

2,4

2,5

2,7

2,9

1,0

1,1

1,1

1,3

1,4

0,6

0,6

0,8

0,9

1,5

1,6

1,7

1,8

6 720 660 238 (2008/07) 71

72 | Gas Setting Values

7.2.7 ZWC/ZSC24-3 MFA (P)

7.2.7.1 For countries with country codes: S4800 / S5200 / S5700 /S6000 / S6100 / S6300 / S6400 / S7100 S7300

/ S7400 / S8300

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

21,6

22,8

24

Table 33

0,9

1,5

2,0

2,5

2,8

3,8

4,6

5,4

6,3

7,3

8,4

9,6

10,8

12,0

G20_20mbar

Burner Pressure mbar

G30_29mbar G20_13mbar

S5700, S7100,

S8300

0,8

1,3

3,0

5,1

1,7

2,2

2,4

3,3

3,9

4,5

5,3

6,1

6,9

7,9

8,8

9,8

6,4

7,8

8,7

11,2

13,0

14,9

16,9

19,0

21,2

23,5

25,9

28,7

3,8

6,4

8,1

9,8

11,0

14,0

16,3

18,6

21,1

23,6

26,3

29,1

31,9

35,4

G31_37mbar

14,5

18,9

21,2

23,5

24,8

28,2

30,5

32,7

35,0

37,2

39,4

41,5

43,7

46,0 lt/min

G20_20mbar

Gas flow lt/min

G20_13mbar

S5700, S7100,

S8300 kg/h

G30_29mbar

14,5

18,8

21,1

23,4

24,8

28,2

30,4

32,7

34,9

0,7

0,9

1,0

1,1

1,1

1,3

1,4

1,5

1,6

37,1

39,3

41,5

43,7

46,0

1,7

1,8

1,8

1,9

2,0 kg/h

G31_37mbar

0,6

0,8

0,9

1,0

1,1

1,2

1,3

1,4

1,5

1,6

1,7

1,8

1,8

2,0

72 6 720 660 238 (2008/07)

Gas Setting Values | 73

7.2.8 ZWC/ZSC24-3 MFA E / NGVA/NGVS24-4HN

7.2.8.1 For counties with country codes: S0400 / S7200 / S0407

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

21,6

22,8

24

Table 34

G20_20mbar

S0400, S0407

0,8

1,4

1,8

2,3

2,7

3,7

4,6

5,5

6,5

7,7

9,0

10,4

12,0

13,3

Burner Pressure mbar

G20_20mbar G30_29mbar

5,3

6,3

7,4

8,6

9,9

11,4

12,6

S7200

0,8

1,4

1,8

2,3

2,6

3,6

4,4

13,0

15,0

17,1

19,4

21,8

24,4

27,0

2,4

4,1

5,2

6,4

7,2

9,5

11,2

7.2.8.2 For counties with country codes: S3600 lt/min

G20_20mbar

S0400, S0407

14,0

18,2

20,5

22,7

24,0

27,3

29,5

31,6

33,8

35,9

38,1

40,2

42,3

44,5

Gas flow lt/min

G20_20mbar

31,7

34,0

36,4

38,7

41,0

43,3

45,6

S7200

13,7

17,8

20,1

22,4

23,7

27,1

29,4 kg/h

G30_29mbar

1,4

1,5

1,6

1,7

1,8

1,9

2,0

0,6

0,8

0,9

1,0

1,1

1,2

1,3

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

19,2

20,4

21,6

22,8

24

12,6

14,4

15,6

16,8

18

Table 35

G20_20mbar

Burner Pressure mbar

G30_29mbar G25_25mbar

1,7

2,9

3,7

4,5

5,1

6,6

7,8

9,0

10,4

11,8

13,3

15,0

16,7

18,5

2,4

4,1

5,2

6,4

7,2

9,5

11,2

13,0

15,0

17,1

19,4

21,8

24,4

27,0

1,7

2,9

3,7

4,7

5,3

7,2

8,6

10,1

11,8

13,7

15,7

17,9

20,3

22,5 lt/min

G20_20mbar

Gas flow kg/h

G30_29mbar lt/min

G25_25mbar

14,2

18,5

20,7

22,9

24,2

27,4

29,5

31,6

33,6

35,7

37,7

39,7

41,6

43,8

0,6

0,8

0,9

1,0

1,1

1,2

1,3

1,4

1,5

1,6

1,7

1,8

1,9

2,0

15,0

19,5

22,0

24,5

26,0

29,7

32,3

34,8

37,3

39,9

42,4

44,9

47,5

50,0

6 720 660 238 (2008/07) 73

74 | Gas Setting Values

7.2.8.3 For countries with country codes: S5000

Gas type

Power (kW)

/Country code

7,3

9,5

10,7

11,9

12,6

14,4

15,6

16,8

18

19,2

20,4

21,6

22,8

24

Table 36

G20_20mbar

Burner Pressure mbar

G30_29mbar G25.1_25mbar

lt/min

G20_20mbar

Gas flow kg/h lt/min

G30_29mbar G25.1_25mbar

1,0

1,7

2,2

2,8

3,1

4,2

5,0

6,0

7,0

8,1

9,3

10,6

12,0

13,3

2,4

4,1

5,2

6,4

7,2

9,5

11,2

13,0

15,0

17,1

19,4

21,8

24,4

27,0

2,7

4,6

5,7

6,9

7,6

9,6

11,1

12,5

14,0

15,6

17,2

18,8

20,4

22,6

14,0

18,2

20,5

22,7

24,0

27,3

29,4

31,6

33,7

35,8

37,9

40,0

42,1

44,3

0,6

0,8

0,9

1,0

1,1

1,2

1,3

1,4

1,5

1,6

1,7

1,8

1,9

2,0

34,1

36,5

38,9

41,3

43,7

46,0

48,3

50,8

16,4

21,3

23,9

26,4

27,9

31,6

74 6 720 660 238 (2008/07)

Gas Setting Values | 75

7.2.9 ZWC/ZSC28-3 MFA

7.2.9.1 For countries with country codes: S5300

Gas type

Power (kW)

/Country code

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 37

GZ50_20mbar

Burner Pressure mbar

GZ35_13 mbar GZ41.5_20mbar

G30_37mbar

Gas flow m^3/h m^3/h m^3/h

GZ50_20mbar GZ35_13 mbar GZ41.5_20 mbar kg/h

G30_37mbar

0,7

0,9

1,1

1,3

1,9

2,5

3,1

4,0

4,8

5,9

7,3

8,7

10,3

12,6

13,7

-

-

-

0,8

1,1

1,4

1,8

2,3

2,8

3,4

4,3

5,1

6,1

7,1

-

0,8

1,1

1,2

1,5

2,1

2,7

3,4

4,3

5,1

6,2

7,6

9,1

10,6

13,0

14,1

2,2

2,9

3,3

3,9

5,2

6,6

8,0

9,7

11,3

13,4

15,9

18,4

21,0

24,9

27,0

1,0

1,2

1,2

1,3

1,5

1,7

1,9

2,0

2,2

2,4

2,5

2,7

2,9

3,1

3,2

-

-

-

1,9

2,2

2,4

2,6

2,9

3,1

3,3

3,6

3,8

4,0

4,3

-

1,2

1,4

1,5

1,6

1,8

2,1

2,3

2,5

2,6

2,9

3,1

3,3

3,5

3,8

3,9

0,8

0,9

0,9

1,0

1,2

1,3

1,4

1,5

1,6

1,8

1,9

2,1

2,2

2,3

2,4

7.2.10 ZWC/ZSC28-3 MFA (P)

7.2.10.1 For countries with country codes:

4800/S5200/S5700/S5900/S6000/S6100/S6300/S6400/S7100/S7300/S7400/S8300

Gas type

Power (kW)

/Country code

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 38

4,8

5,9

7,3

8,7

10,3

12,6

13,7

1,9

2,5

3,1

4,0

0,7

0,9

1,1

1,3

G20_20mbar

Burner Pressure

G20_13mbar

S5700, S7100, mbar

G30_29mbar

S8300

1,2

1,6

2,0

2,5

-

-

-

0,9

2,2

2,9

3,3

3,9

5,3

6,7

8,2

10,0

3,0

3,7

4,5

5,3

6,3

7,7

8,3

11,7

13,8

16,5

19,2

22,0

26,2

28,4

G31_37mbar

15,0

17,7

20,9

24,1

27,4

32,3

35,0

3,0

4,0

4,5

5,3

7,1

8,9

10,7

12,9

36,4

39,3

42,4

45,2

48,0

51,7

53,8

16,9

19,5

20,6

22,4

25,6

28,5

31,2

34,0 lt/min

G20_20mbar lt/min

G20_13mbar

S5700, S7100,

S8300

Gas flow kg/h

G30_29mbar

-

-

-

22,6

0,8

0,9

0,9

1,0

25,8

28,7

31,4

34,2

36,6

39,4

42,6

45,3

48,1

51,7

53,8

1,2

1,3

1,4

1,5

1,6

1,8

1,9

2,1

2,2

2,3

2,4 kg/h

G31_37mbar

1,5

1,6

1,8

1,9

2,0

2,2

2,3

1,0

1,2

1,3

1,4

0,7

0,8

0,8

0,9

6 720 660 238 (2008/07) 75

76 | Gas Setting Values

7.2.11 ZWC/ZSC28-3 MFA

7.2.11.1 For countries with country codes: S0400 / S7200 / S0407

Gas type

Power (kW)

/Country code

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 39

G20_20mbar

S0400, S0407

0,8

1,1

1,2

1,5

2,0

2,6

3,3

4,0

4,8

5,8

7,1

8,3

9,7

11,8

12,8

Burner Pressure mbar

G20_20mbar G30_29mbar

4,2

5,0

5,9

7,1

8,3

9,6

11,5

12,5

S7200

0,9

1,2

1,4

1,6

2,2

2,8

3,4

10,2

11,8

13,8

16,3

18,7

21,2

24,9

27,0

2,4

3,2

3,6

4,2

5,6

7,0

8,5 lt/min

G20_20mbar

S0400, S0407

16,3

18,8

19,9

21,6

24,8

27,6

30,1

32,9

35,3

38,1

41,2

43,9

46,6

50,2

52,2

Gas flow lt/min

G20_20mbar

33,3

35,6

38,3

41,4

44,0

46,6

50,1

52,1

S7200

16,7

19,2

20,4

22,0

25,2

28,0

30,6 kg/h

G30_29mbar

2,0

2,1

2,3

2,4

1,5

1,6

1,7

1,8

0,7

0,8

0,9

1,0

1,1

1,2

1,3

7.2.11.2 For countries with country codes: S3600

Gas type

Power (kW)

/Country code

7,0

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 40

G20_20mbar

Burner Pressure mbar

G30_29mbar G25_25mbar

-

1,5

2,0

2,2

2,7

3,5

4,4

5,4

6,5

7,5

8,8

10,5

12,0

13,7

16,2

17,5

-

2,4

3,2

3,6

4,2

5,6

7,0

8,5

10,2

11,8

13,8

16,3

18,7

21,3

25,0

27,1

6,5

7,8

9,4

10,8

12,6

14,9

17,0

19,2

22,5

22,2

1,5

2,2

3,0

3,4

4,0

5,2 lt/min

G20_20mbar

Gas flow kg/h

G30_29mbar lt/min

G25_25mbar

27,7

30,3

33,2

35,6

38,4

41,7

44,5

47,3

51,1

53,2

-

16,3

18,8

19,9

21,6

24,8

1,7

1,8

2,0

2,1

1,2

1,3

1,5

1,6

2,3

2,4

-

0,7

0,8

0,9

1,0

1,1

32,1

35,1

38,4

41,1

44,3

47,9

51,1

54,2

58,4

58,0

15,6

19,1

21,9

23,3

25,2

28,9

76 6 720 660 238 (2008/07)

Gas Setting Values | 77

7.2.11.3 For countries with country codes: S5000

Gas type

Power (kW)

/Country code

8,6

9,9

10,5

11,4

13,1

14,6

16

17,5

18,8

20,3

22

23,5

25

27

28,1

Table 41

G20_20mbar

Burner Pressure mbar

G30_29mbar G25.1_25mbar

lt/min

G20_20mbar

Gas flow kg/h lt/min

G30_29mbar G25.1_25mbar

0,8

1,1

1,2

1,5

2,0

2,6

3,3

4,0

4,8

5,8

7,1

8,3

9,7

11,8

12,8

2,4

3,2

3,6

4,2

5,6

7,0

8,5

10,2

11,8

13,8

16,3

18,7

21,2

24,9

27,0

1,3

1,7

1,9

2,3

3,0

3,8

4,5

5,4

6,2

7,3

8,6

9,8

11,1

12,9

14,0

16,3

18,8

19,9

21,6

24,8

27,6

30,1

32,9

35,3

38,1

41,2

43,9

46,6

50,2

52,2

0,7

0,8

0,9

1,0

1,1

1,2

1,3

1,5

1,6

1,7

1,8

2,0

2,1

2,3

2,4

38,4

41,0

44,0

47,4

50,4

53,3

57,1

59,5

19,4

22,3

23,6

25,6

29,2

32,4

35,3

6 720 660 238 (2008/07) 77

78 | Gas Setting Values

7.2.12 ZWC/ZSC35-3 MFA

7.2.12.1 For countries with country codes: S5300

Gas type

Power (kW)

/Country code

9,7

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,3

33,2

33,4

33,9

34,9

Table 42

GZ50_20mbar

Burner Pressure

GZ35_13 mbar mbar

GZ41.5_20mbar

G30_37mbar

Gas flow m^3/h m^3/h m^3/h

GZ50_20mbar GZ35_13 mbar GZ41.5_20 mbar kg/h

G30_37mbar

-

0,8

1,0

1,3

1,6

1,7

2,0

2,5

2,9

3,5

4,2

5,0

5,8

6,8

7,3

8,4

10,3

10,9

11,8

11,9

12,4

13,1

-

-

-

-

-

0,7

0,8

1,0

1,1

1,4

1,6

1,9

2,2

2,6

2,8

3,2

3,9

4,1

4,4

4,5

4,6

-

-

-

-

0,8

1,0

1,1

1,2

1,5

1,8

2,2

2,7

3,2

3,7

4,4

4,7

5,4

6,7

7,2

7,7

7,8

8,1

8,6

-

3,0

3,9

4,6

5,7

6,1

6,9

8,3

9,6

11,3

13,4

15,3

17,4

20,0

21,2

23,7

28,2

29,7

31,6

31,9

32,9

34,9

-

1,3

1,5

1,6

1,8

1,8

1,9

2,1

2,2

2,4

2,6

2,8

2,9

3,1

3,2

3,4

3,6

3,7

3,8

3,8

3,9

4,0

-

-

-

-

-

2,6

2,8

3,0

3,2

3,4

3,7

3,9

4,1

4,4

4,5

4,7

5,1

5,2

5,3

5,3

5,4

-

-

-

-

1,9

2,1

2,2

2,3

2,5

2,7

2,9

3,1

3,3

3,5

3,7

3,8

4,0

4,3

4,4

4,5

4,6

4,6

4,8

2,3

2,4

2,5

2,7

1,7

1,8

1,9

2,1

2,2

1,3

1,3

1,4

1,6

-

0,9

1,1

1,2

2,8

2,9

2,9

2,9

3,0

78 6 720 660 238 (2008/07)

Gas Setting Values | 79

7.2.13 ZWC/ZSC35-3 MFA

7.2.13.1 For countries with country codes: S4800/S5200/S5700/S6000/S6100/S6400/S7100/S7300/S7400

Gas type

Power (kW)

/Country code

9,7

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,3

33,2

33,4

33,9

34,9

Table 44

G20_20mbar

Burner Pressure mbar

G30_29mbar G31_37mbar Gas type

Power (kW)

/Country code

9,7

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,3

33,2

33,4

33,9

34,9

Table 43

2,9

3,5

4,2

5,0

5,8

6,8

7,3

8,4

10,3

10,9

1,6

1,7

2,0

2,5

-

0,8

1,0

1,3

11,8

11,9

12,4

13,1

7,8

9,2

11,0

12,8

14,7

17,0

18,2

20,5

24,8

26,3

4,5

4,8

5,5

6,7

-

2,3

3,0

3,6

28,1

28,4

-

-

7.2.13.2 For countries with country codes: S5700/S7100/S8300

10,3

12,2

14,6

16,9

19,4

22,5

24,0

27,1

32,7

34,5

-

-

-

-

5,9

6,4

7,2

8,8

2,5

3,0

4,0

4,7 lt/min

G20_20mbar

37,4

40,3

43,4

46,2

48,9

52,0

53,4

56,1

60,5

61,9

-

21,5

24,5

26,5

29,4

30,4

32,1

35,0

63,6

63,8

64,7

66,6

Gas flow kg/h

G30_29mbar kg/h

G31_37mbar

2,2

2,3

2,4

2,5

2,7

2,8

1,7

1,8

1,9

2,1

2,9

2,9

-

-

1,3

1,3

1,4

1,5

-

0,9

1,1

1,2

2,1

2,2

2,3

2,4

2,7

2,7

1,6

1,7

1,8

2,0

-

-

-

-

1,2

1,2

1,3

1,5

0,8

0,9

1,0

1,1

G20_13mbar

Burner Pressure mbar

G30_29mbar G31_37mbar

4,1

4,7

5,1

5,8

7,0

2,1

2,5

3,0

3,5

7,5

7,9

-

-

-

1,2

1,3

1,5

1,8

-

-

0,8

0,9

7,8

9,2

11,0

12,8

14,7

17,0

18,2

20,5

24,8

26,3

28,1

28,4

-

-

4,5

4,8

5,5

6,7

-

2,3

3,0

3,6

10,3

12,2

14,6

16,9

19,4

22,5

24,0

27,1

32,7

34,5

-

-

-

-

5,9

6,4

7,2

8,8

2,5

3,0

4,0

4,7 m^3/h

G20_13mbar

Gas flow kg/h

G30_29mbar kg/h

G31_37mbar

2,9

3,1

3,2

3,4

3,6

2,2

2,4

2,6

2,8

3,7

3,8

-

-

-

1,8

1,8

1,9

2,1

-

-

1,5

1,6

2,2

2,3

2,4

2,5

2,7

1,7

1,8

1,9

2,1

2,8

2,9

2,9

-

-

1,3

1,3

1,4

1,5

-

0,9

1,1

1,2

2,1

2,2

2,3

2,4

2,7

1,6

1,7

1,8

2,0

2,7

-

-

-

-

1,2

1,2

1,3

1,5

0,8

0,9

1,0

1,1

6 720 660 238 (2008/07) 79

80 | Gas Setting Values

7.2.14 ZWC/ZSC35-3 MFA E / NGVA35-4HN

7.2.14.2 For countries with country codes: ZWC/ZSC35-3 MFA E S0400 / S7200 / NGVA35-4HN S0407

Gas type

Power (kW)

/Country code

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,5

33,5

34,2

34,9

Table 45

G20_20mbar

S0400, S0407

0,7

0,9

1,1

1,4

1,6

1,8

2,2

6,5

7,0

8,0

9,9

2,7

3,2

3,9

4,7

5,5

11,1

-

-

-

Burner Pressure mbar

G20_20mbar G30_29mbar

6,1

6,6

7,6

9,3

2,6

3,1

3,8

4,5

5,2

S7200

0,7

0,9

1,1

1,4

1,5

1,8

2,2

10,0

10,9

11,5

12,0

S0400, S0407

2,4

3,1

3,7

4,6

4,9

5,6

6,7

7,8

9,1

10,8

12,4

14,1

16,2

17,2

19,3

22,9

24,5

-

-

-

G30_29mbar

7,8

9,1

10,8

12,4

14,1

16,2

17,2

19,3

22,9

S7200

2,4

3,1

3,7

4,6

4,9

5,6

6,7

24,2

26,1

27,2

lt/min

G20_20mbar

S0400, S0407

20,2

23,0

24,9

27,7

28,6

30,3

33,1

35,5

38,2

41,4

44,1

46,9

50,0

51,4

54,1

58,6

60,3

-

-

lt/min

G20_20mbar

Gas flow kg/h

G30_29mbar

36,3

39,0

41,9

44,5

47,1

49,9

51,3

53,7

57,8

S7200

21,0

24,0

25,9

28,6

29,6

31,2

34,0

59,0

60,9

62,0

63,3

S0400, S0407

0,9

1,0

1,1

1,2

1,3

1,3

1,5

2,2

2,3

2,4

2,6

1,6

1,7

1,8

2,0

2,1

2,7

-

-

kg/h

G30_29mbar

2,2

2,3

2,4

2,6

1,6

1,7

1,8

2,0

2,1

S7200

0,9

1,0

1,1

1,2

1,3

1,3

1,5

2,7

2,8

2,9

-

7.2.14.2 For countries with country codes: S3600

Gas type

Power (kW)

/Country code

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,3

33,5

34,2

34,9

Table 46

G20_20mbar

Burner Pressure mbar

G30_29mbar G25_25mbar

0,7

0,9

1,1

1,4

1,5

1,8

2,2

2,6

3,1

3,8

4,5

5,2

6,1

6,6

7,6

9,3

10,0

10,9

11,5

12,0

2,4

3,1

3,7

4,6

4,9

5,6

6,7

7,8

9,1

10,7

12,3

14,0

16,1

17,2

19,2

22,8

24,1

26,0

27,2

27,2

5,4

6,6

7,7

9,0

10,6

11,4

13,1

16,2

17,2

2,6

3,0

3,7

4,5

1,2

1,6

1,9

2,4

18,9

20,0

20,8 lt/min

G20_20mbar

Gas flow kg/h

G30_29mbar lt/min

G25_25mbar

39,1

42,1

44,7

47,3

50,2

51,6

54,1

58,3

59,6

21,0

24,0

25,9

28,7

29,6

31,3

34,0

36,4

61,5

62,6

63,9

2,3

2,4

2,6

2,7

1,7

1,8

2,0

2,1

2,2

1,3

1,3

1,5

1,6

0,9

1,0

1,1

1,2

2,8

2,9

2,9

39,6

43,2

46,3

49,5

53,1

54,9

58,1

63,6

65,3

20,2

23,1

25,0

28,0

29,0

30,9

33,9

36,6

68,0

69,6

71,0

80 6 720 660 238 (2008/07)

Gas Setting Values | 81

7.2.14.3 For countries with country codes: S5000

Gas type

Power (kW)

/Country code

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,3

33,5

34,2

34,9

Table 47

G20_20mbar

Burner Pressure mbar

G30_29mbar G25.1_25mbar

lt/min

G20_20mbar

Gas flow kg/h lt/min

G30_29mbar G25.1_25mbar

0,7

0,9

1,1

1,4

1,5

1,8

2,2

2,6

3,1

3,8

4,5

5,2

6,2

6,7

7,6

9,4

10,0

11,0

11,6

12,1

2,4

3,1

3,7

4,6

4,9

5,6

6,7

7,8

9,1

10,8

12,4

14,1

16,2

17,2

19,3

22,9

24,2

26,1

27,2

-

1,6

2,1

2,5

3,1

3,3

3,8

4,6

5,3

6,3

7,5

8,7

9,9

11,5

12,3

13,8

16,6

17,6

18,9

-

-

20,2

23,0

24,9

27,6

28,6

30,2

33,0

35,4

38,1

41,2

43,9

46,6

49,6

51,0

53,7

58,1

59,5

61,6

62,8

64,1

0,9

1,0

1,1

1,2

1,3

1,3

1,5

1,6

1,7

1,8

2,0

2,1

2,2

2,3

2,4

2,6

2,7

2,8

2,9

-

43,0

46,4

49,3

52,2

55,4

57,0

59,8

64,4

23,1

26,3

28,4

31,5

32,5

34,4

37,4

40,0

65,9

68,3

-

-

6 720 660 238 (2008/07) 81

82 | Gas Setting Values

7.2.15 ZWC/ZSC24-3 MFA M

7.1.15.1 For countries with country codes: S3501 / S3700

Burner Pressure mbar lt/min

Gas flow kg/h

Gas type

Power (kW)

/Country code

7,3

18

19,2

20,4

21,6

22,8

24

9,5

10,7

11,9

12,6

14,4

15,6

16,8

Table 48

G20_20mbar G30_29mbar G20_20mbar G30_29mbar

1,0

6,7

7,8

8,9

10,1

11,4

12,6

1,7

2,2

2,7

3,1

4,1

4,9

5,8

2,6

15,6

17,8

20,0

22,4

24,9

27,6

4,4

5,6

6,9

7,7

10,1

11,8

13,6

14,0

33,7

35,8

37,9

40,0

42,1

44,3

18,2

20,5

22,7

24,0

27,3

29,4

31,6

0,6

1,5

1,6

1,7

1,8

1,9

2,0

0,8

0,9

1,0

1,1

1,2

1,3

1,4

7.2.16 ZWC/ZSC24/28 -3 MFA M dual output

7.2.16.1 For countries with country codes: S3501 / S3700

Gas type

Power (kW)

/Country code

7,3

8,6

10

13

15

16

20

21

22

23

17

18

19

24 (for CH)

28 (for DHW)

Table 49

Burner Pressure Gas flow mbar lt/min kg/h

G20_20mbar G30_29mbar G20_20mbar G30_29mbar

0,7

1,0

1,4

2,5

3,4

4,0

4,6

5,3

6,0

6,8

7,6

8,6

9,5

11,2

14,5

2,0

2,8

3,7

6,2

8,2

9,3

10,4

11,6

12,9

14,2

15,5

17,0

18,5

21,0

27,4

14,1

16,6

19,2

24,8

28,5

30,3

32,1

33,9

35,7

37,5

39,3

41,1

42,8

44,6

52,2

0,6

0,7

0,9

1,1

1,3

1,3

1,4

1,5

1,6

1,7

1,7

1,8

1,9

2,0

2,3

82 6 720 660 238 (2008/07)

Gas Setting Values | 83

7.2.17 NGVA/NGVS28-4HN

7.2.17.1 For countries with country codes: S0200

Gas type

Power (kW)

/Country code

17,5

18,8

20,3

22

23,5

25

27

28,1

7,0

8,6

9,9

10,5

11,4

13,1

14,6

16

Table 50

Burner Pressure mbar lt/min

G20_20mbar G30_29mbar G25_25mbar G20_20mbar

-

1,0

1,3

1,5

1,8

2,4

3,0

3,6

4,4

5,1

6,0

7,1

8,2

9,4

11,1

12,0

-

2,9

3,8

4,3

5,0

6,6

8,1

9,6

11,4

13,0

15,0

17,4

19,7

22,0

25,3

27,4

1,0

1,5

2,0

2,3

2,6

3,5

4,3

5,1

6,1

7,0

8,1

9,4

10,7

12,0

13,8

15,0

28,2

30,9

33,8

36,2

39,1

42,3

45,1

47,9

51,7

53,8

-

16,7

19,2

20,4

22,1

25,4

Gas flow kg/h

G30_29mbar

1,7

1,8

2,0

2,1

1,2

1,3

1,5

1,6

2,3

2,4

-

0,7

0,8

0,9

1,0

1,1 lt/min

G25_25mbar

37,6

40,2

43,1

46,4

49,2

52,0

55,6

57,9

15,6

19,2

22,0

23,3

25,2

28,7

31,8

34,6

7.2.18 ZWC/ZSC30 -3 MFA M

7.2.18.1 For countries with country codes: S3501 / S3700

Gas type

Power (kW)

/Country code

10

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

30

Table 51

Burner Pressure mbar lt/min

Gas flow kg/h

G20_20mbar G30_29mbar G20_20mbar G30_29mbar

1,0

1,8

2,2

2,8

3,0

3,4

4,2

4,9

5,9

7,1

8,4

9,7

11,3

12,2

14,5

2,5

4,5

5,3

6,5

7,0

7,8

9,4

10,8

12,5

14,7

16,7

18,8

21,4

22,7

27,0

17,7

23,8

25,7

28,5

29,4

31,1

33,8

36,2

38,9

41,9

44,5

47,1

50,0

51,4

56,1

1,7

1,8

2,0

2,1

2,2

2,3

2,5

0,8

1,0

1,1

1,2

1,3

1,4

1,5

1,6

6 720 660 238 (2008/07) 83

84 | Gas Setting Values

7.2.19 ZWC/ZSC35-3 MFA M

7.2.19.1 For countries with country codes: S3501 / S3700

Gas type

Power (kW)

/Country code

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,3

33,5

34,2

34,9

Table 52

Burner Pressure Gas flow mbar lt/min kg/h

G20_20mbar G30_29mbar G20_20mbar G30_29mbar

1,1

1,4

1,7

2,1

2,3

2,5

3,1

3,6

4,2

4,9

5,7

6,4

7,4

7,9

8,8

10,5

11,0

11,9

12,5

13,0

2,8

3,6

4,3

5,3

5,6

6,3

7,5

8,6

10,0

11,7

13,3

15,0

17,0

18,0

19,9

23,3

24,5

26,2

27,3

28,4

23,1

26,3

28,3

31,2

32,1

33,8

36,6

39,0

41,6

44,5

47,0

49,4

52,1

53,3

55,6

59,1

60,2

61,9

62,8

64,1

2,1

2,2

2,3

2,4

2,6

1,6

1,7

1,8

2,0

2,7

2,8

2,9

2,9

0,9

1,0

1,1

1,2

1,3

1,3

1,5

7.2.20 ZWC/ZSC35-3 MFA M…-NGVA/NGVS35-4 HN

7.2.20.1 For countries with country codes: ZWC/ZSC35-3 MFA M S6300 / NGVA/NGVS35-4 HN S0200

Gas type

Power (kW)

/Country code

10,6

12,1

13,1

14,6

15,1

16

17,5

18,8

20,3

22

23,5

25

26,7

27,5

29

31,5

32,3

33,5

34,2

34,4

34,9

Table 53

Burner Pressure mbar

G20_20mbar G20_20mbar G30_29mbar

10,4

10,9

11,6

12,1

12,2

-

5,3

6,0

6,8

7,7

8,1

8,9

S0200

1,3

1,7

2,0

2,4

2,6

2,9

3,5

4,0

4,6

S6300

1,3

1,7

2,0

2,4

2,6

2,9

3,5

4,0

4,6

5,4

6,1

6,8

7,7

8,1

9,0

10,5

11,0

11,7

12,2

12,3

12,7

23,1

24,2

26,0

27,1

27,3

28,2

11,4

13,0

14,7

16,7

17,7

19,6

2,7

3,5

4,1

5,1

5,5

6,1

7,3

8,4

9,8

G25_25mbar

13,3

14,1

15,2

16,0

16,2

-

6,1

7,0

8,0

9,2

9,8

11,1

S0200

1,3

1,7

2,0

2,5

2,7

3,1

3,7

4,3

5,1 lt/min

G20_20mbar

59,1

60,5

62,7

64,0

64,4

-

41,5

44,3

47,1

50,2

51,7

54,5

S0200

20,2

23,0

24,9

27,7

28,6

30,3

33,1

35,6

38,4

Gas flow lt/min

G20_20mbar kg/h lt/min

G30_29mbar G25_25mbar

58,1

595,5

61,6

62,8

63,2

64,1

41,2

43,9

46,6

49,6

51,0

53,7

S6300

20,2

23,0

24,9

27,6

28,6

30,2

33,0

35,4

38,1

0,9

1,0

1,1

1,2

1,3

1,3

1,5

1,6

1,7

1,8

2,0

2,1

2,2

2,3

2,4

2,6

2,7

2,8

2,9

2,9

2,9

63,3

65,0

67,6

69,1

69,6

-

43,5

46,6

49,7

53,2

54,9

58,1

S0200

20,6

23,5

25,5

28,5

29,5

31,3

34,3

37,0

40,0

84 6 720 660 238 (2008/07)

8 Temperature Sensor Resistance Values

8.1 CH flow NTC

8.1.1 ZWC/ZSC-3 and NGVA/NGVS-4 types

30

40

50

60

Temperature (ºC) Resistance ( ?

)

0 33242

10

20

19947

12394

7947

5242

3548

2459

70

80

90

Tab. 54

1740

1256

923

8.1.2 ZWE-5 and NGVM/NGLM-4 types

Temperature (ºC) Resistance ( ?

)

0 35975

10 22763

20 14772

30 9785

40 6652

50 4607

60 3245

70 2332

80 1703

90 1261

Tab. 55

NTC Resistance Tables | 85

6 720 660 238 (2008/07) 85

86 | NTC Resistance Tables

8.2 DHW NTC

60

70

80

90

Tab. 56

20

30

40

50

Temperature (ºC) Resistance ( ?

)

0 33242

10 19947

12394

7947

5242

3548

2459

1740

1256

923

8.3 Flue gas NTC

Temperature (ºC) Resistance ( ?

)

0

20

40

60

80

100

120

140

160

Tab. 57

28250

12161

5736

2949

1634

961,4

595,2

386,2

260,2

8.4 Combustion chamber NTC

Temperature (ºC) Resistance ( ?

)

0 330

25 110

60 24,08

80 11,77

100 6,12

120 3,37

140 1,95

160 1,17

165 1,04

Tab. 58

86 6 720 660 238 (2008/07)

Symbols on Display | 87

9. Display Symbols

Display

Code Description

Max. rated heat output (display flashes)

Max. heating output setting (display flashes)

Min. rated heat output (display flashes)

Key lock active

Drying function. If the floor drying function is activated on outside-temperature controlled programmer refer to programmer instructions.

Pump anti-seize function active

Two buttons are pressed simultaneously

One button is pressed

Storing of service mode data

Domestic hot water active

Table 59

6 720 660 238 (2008/07) 87

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Key Features

  • Modulation technology for precise temperature control and energy efficiency
  • Intuitive user interface for easy operation and customization
  • Compact design for space-saving installation
  • Built-in safety features for peace of mind
  • High efficiency rating for reduced energy consumption and lower bills
  • Quiet operation for a peaceful home environment
  • Compatible with various heating systems and radiators

Questions & Answers

2024-06-27

M M Z

Who is responsible for general and environmental safety of the system?
The operator is responsible for general and environmental safety of the system.

Related manuals

Frequently Answers and Questions

What is the maximum hot water output of the Junkers ZWE 28-5 MFA boiler?
The Junkers ZWE 28-5 MFA boiler has a maximum hot water output of 28 kW, which is sufficient for meeting the hot water demands of a typical household.
What are the dimensions of the Junkers ZWE 28-5 MFA boiler?
The dimensions of the Junkers ZWE 28-5 MFA boiler are 720 mm (height) x 400 mm (width) x 300 mm (depth).
What is the minimum gas pressure required for the Junkers ZWE 28-5 MFA boiler to operate?
The minimum gas pressure required for the Junkers ZWE 28-5 MFA boiler to operate is 13 mbar.
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