DeDietrich MODULENS O AFC 18, MODULENS O AFC 24, MODULENS O AFC 30 Installation And Service Manual

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MODULENS O

Oil-fired condensing boilers

AFC 18 - AFC 24 - AFC 30

Installation and Service Manual

300026439-07

Declaration of conformity [

C003918-A

The device complies with the standard type described in the EG declaration of conformity. It was manufactured and commissioned in accordance with European directives.

The original declaration of conformity is available from the manufacturer.

Contents

1 Safety instructions .....................................................................................6

1.1 Safety instructions ...............................................6

1.2 Recommendations ................................................7

1.3 Liabilities ...............................................................8

1.3.1 Manufacturer’s liability .............................................8

1.3.2 Installer’s liability .....................................................8

2 About this manual ......................................................................................9

2.1 Symbols used .......................................................9

2.1.1 Symbols used in the manual ...................................9

2.1.2 Symbols used on the equipment .............................9

2.2 Abbreviations ......................................................10

2.3 After Sales Service Internet Site .......................10

3 Technical specifications ..........................................................................11

3.1 Homologations ....................................................11

3.1.1 Certifications .........................................................11

3.1.2 Oil category ...........................................................11

3.1.3 Additional Directives ..............................................11

3.1.4 Factory test ...........................................................12

3.2 Technical specifications ....................................12

3.2.1 Boiler specifications ..............................................12

3.2.2 Burner specifications .............................................14

3.2.3 Sensor characteristics ...........................................14

4 Product description .................................................................................15

4.1 General description ............................................15

4.2 Operating principle .............................................15

4.2.1 Skeleton Diagrams ................................................15

4.2.2 Circulation pump ...................................................20

4.2.3 Water flow rate ......................................................20

4.2.4 Burner operating cycle ..........................................20

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4.3 Main parts ............................................................25

4.3.1 Boiler .....................................................................25

4.3.2 Fuel oil burner .......................................................26

4.4 Package list .........................................................26

4.4.1 Standard delivery ..................................................26

4.4.2 Accessories ...........................................................27

Contents

5 Installation ................................................................................................29

5.1 Regulations governing installation ...................29

5.2 Choice of the location ........................................30

5.2.1 Type plate .............................................................30

5.2.2 Positioning of the appliance ..................................30

5.2.3 Ventilation .............................................................32

5.2.4 Main dimensions ...................................................33

5.3 Positioning the appliance ..................................36

5.3.1 Positioning the boiler on its own ............................36

5.3.2 Fitting the boiler to a DHW tank ............................39

5.3.3 Positioning the boiler to the left or right of a DHW

tank .......................................................................39

5.3.4 Reversal of the direction the control panel access

door opens ............................................................40

5.4 Hydraulic connections .......................................43

5.4.1 Flushing the system ..............................................43

5.4.2 Connecting the expansion vessel (Depending on country, standard delivery or

optional) ................................................................44

5.4.3 Installing the deaerator ..........................................45

5.4.4 Hydraulic connection of the heating circuit ............46

5.4.5 Connection of the water circuit for domestic

use ........................................................................46

5.4.6 Connecting the condensate discharge pipe ..........46

5.4.7 Filling the condensate trap ....................................48

5.5 Oil connection .....................................................48

5.5.1 General .................................................................48

5.5.2 Connecting ............................................................49

5.5.3 Diameter and length of the oil pipes ......................49

5.6 Flue gas system connections - Depending on

country .................................................................50

5.6.1 Connections for the air and exhaust pipes - Forced

flow (forced flue) - Type C .....................................50

5.6.2 Connections for the air and exhaust pipes - Single

flow (chimney) - Type B ........................................52

5.7 Installing the outside sensor .............................57

5.7.1 Choice of the location ............................................57

5.7.2 Connecting the outside sensor ..............................58

5.8 Electrical connections ........................................59

5.8.1 Control unit ............................................................59

5.8.2 Recommendations ................................................60

5.8.3 Accessing the connection terminal blocks ............60

5.8.4 Connecting a direct heating circuit ........................62

5.8.5 Connecting a direct circuit and a circuit with 3-way

valve ......................................................................63

5.8.6 Connecting a direct heating circuit and a domestic hot

water tank ..............................................................65

5.8.7 Connecting a direct heating circuit and an

independent domestic hot water tank ...................68

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5.8.8 Connecting two circuits and a domestic hot water

tank .......................................................................70

5.8.9 Connecting two heating circuits with pressure

breaker ..................................................................72

5.8.10 Hot water storage tank connection ........................73

5.8.11 Pool connection .....................................................80

5.8.12 Connecting a mixed tank .......................................82

5.8.13 Connecting the options .........................................83

5.8.14 Connection in cascade ..........................................84

5.9 Electrical diagram ...............................................86

5.9.1 Boiler .....................................................................86

5.9.2 Burner ...................................................................88

5.10 Filling the system ...............................................89

5.10.1 Water treatment ....................................................89

5.10.2 Filling the heating circuit ........................................90

5.10.3 Filling the drinking water circuit .............................91

6 Commissioning ........................................................................................92

6.1 Control panel .......................................................92

6.1.1 Description of the keys ..........................................92

6.1.2 Description of the display ......................................93

6.1.3 Access to the various browsing levels ..................96

6.1.4 Browsing in the menus ..........................................97

6.2 Checks and settings before

commissioning ...................................................98

6.2.1 Preparing the boiler for commissioning .................98

6.3 Putting the appliance into operation ................98

6.4 Setting the burner ...............................................99

6.4.1 Operations to be carried out before any attempt to set

the burner ..............................................................99

6.4.2 Setting the burner’s 3 operating outputs .............100

6.4.3 Checking combustion ..........................................101

6.5 Checks and adjustments after

commissioning .................................................102

6.5.1 Displaying the parameters in extended

mode ...................................................................102

6.5.2 Setting the parameters specific to the

installation ...........................................................102

6.5.3 Naming the circuits and generators ....................107

6.5.4 Setting the heating curve ....................................108

6.5.5 Finalizing work ....................................................110

6.6 Reading out measured values .........................110

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6.7 Changing the settings ......................................111

6.7.1 Language selection .............................................112

6.7.2 Calibrating the sensors .......................................112

6.7.3 Professional settings ...........................................114

6.7.4 Configuring the network ......................................122

6.7.5 Return to the factory settings ..............................125

Contents

7 Switching off the appliance ...................................................................126

7.1 Installation shutdown .......................................126

7.2 Antifreeze protection ........................................126

8 Checking and maintenance ...................................................................128

8.1 General instructions .........................................128

8.2 Chimney sweep instructions ...........................128

8.3 Customising maintenance ...............................129

8.3.1 Maintenance message ........................................129

8.3.2 Contact details of the professional for After Sales

Support ................................................................131

8.4 Standard inspection and maintenance

operations .........................................................131

8.4.1 Checking the hydraulic pressure .........................132

8.4.2 Checking the tightness of the flue gas discharge, the

air inlet and the condensates discharge ..............132

8.4.3 Checking the automatic air vent ..........................132

8.4.4 Cleaning of the heating body ..............................133

8.4.5 Cleaning the siphon ............................................137

8.4.6 Checking and replacing the installation’s oil

filter .....................................................................138

8.4.7 Maintenance of the burner ..................................138

8.5 Specific maintenance operations ....................142

8.5.1 Replacing the ignition electrodes ........................143

8.5.2 Maintenance of the air/flue gas drain connection

flues .....................................................................144

9 Troubleshooting .....................................................................................145

9.1 Anti-hunting ......................................................145

9.2 Messages (Code type Bxx or Mxx) ..................145

9.3 Message history ................................................148

9.4 Faults (Code type Lxx or Dxx) .........................148

9.4.1 Deletion of sensors from the memory in the

PCB .....................................................................154

9.5 Failure history ...................................................155

9.6 Parameter and input/output check (mode

tests) ..................................................................156

9.6.1 Control system sequence ....................................159

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10 Spare parts ..............................................................................................161

10.1 General ..............................................................161

10.2 Spare parts ........................................................162

10.2.1 Boiler body - Tank - Base - Fuel oil burner .........162

10.2.2 Hydraulics ...........................................................165

10.2.3 Expansion vessel 18 litres (Depending on country,

standard delivery or optional) ..............................166

10.2.4 Casing .................................................................167

10.2.5 Control panel .......................................................168

10.2.6 Fuel oil burner (Details) .......................................169

10.2.7 Spare parts list ....................................................170

11 Appendix – Information on the Ecodesign and Energy Labelling

Directives ................................................................................................174

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1. Safety instructions AFC 18 - AFC 24 - AFC 30

1 Safety instructions

1.1 Safety instructions

DANGER

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

DANGER

If you smell flue gases:

1. Switch the appliance off.

2. Open the windows.

3. Trace possible leaks and seal them immediately.

WARNING

Depending on the settings of the appliance: 4 The temperature of the flue gas conduits

may exceed 60°C.

4 The temperature of the radiators may reach

95°C.

4 The temperature of the domestic hot water

may reach 80°C (depending on the set point temperature and activation of the antilegionella function).

CAUTION

4 Before any work, switch off the mains supply

to the appliance.

4 Avoid direct contact with the flame viewport.

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AFC 18 - AFC 24 - AFC 30

1.2 Recommendations

1. Safety instructions

WARNING

4 Installation and maintenance of the boiler

must be carried out by a qualified professional in compliance with prevailing local and national regulations.

4 When carrying out work on the boiler,

always switch off the boiler at the mains and close the main oil inlet.

4 After maintenance or repair work, check all

installations to ensure that there are no leaks.

CAUTION

The boiler must be installed in a frost-free environment.

Keep this document close to the place where the boiler is installed.

Casing components

Only remove the casing for maintenance and repair operations. Put the casing back in place after maintenance and repair operations.

Instructions stickers

The instructions and warnings affixed to the appliance must never be removed or covered and must remain legible during the entire lifespan of the appliance. Immediately replace damaged or illegible instructions and warning stickers.

Modifications

Modifications to the boiler may only be carried out with the written approval of your supplier.

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1. Safety instructions

1.3 Liabilities

AFC 18 - AFC 24 - AFC 30

1.3.1. Manufacturer’s liability

Our products are manufactured in compliance with the requirements of the various applicable European

Directives. They are therefore delivered with [ marking and all relevant documentation.

In the interest of customers, we are continuously endeavouring to make improvements in product quality. All the specifications stated in this document are therefore subject to change without notice.

Our liability as the manufacturer may not be invoked in the following cases:

4 Failure to abide by the instructions on using the

appliance.

4 Faulty or insufficient maintenance of the appliance. 4 Failure to abide by the instructions on installing the

appliance.

1.3.2. Installer’s liability

The installer is responsible for the installation and commissioning of the appliance. The installer must respect the following instructions:

4 Read and follow the instructions given in the manuals

provided with the appliance.

4 Carry out installation in compliance with the prevailing

legislation and standards.

4 Perform the initial start up and carry out any checks

necessary.

4 Explain the installation to the user. 4 If a maintenance is necessary, warn the user of the

obligation to check the appliance and maintain it in good working order.

4 Give all the instruction manuals to the user.

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D000241-C

AFC 18 - AFC 24 - AFC 30

2 About this manual

2.1 Symbols used

2.1.1. Symbols used in the manual

In these instructions, various danger levels are employed to draw the user’s attention to particular information. In so doing, we wish to safeguard the user’s safety, highlight hazards and guarantee correct operation of the appliance.

2. About this manual

DANGER

Risk of a dangerous situation causing serious physical injury.

WARNING

Risk of a dangerous situation causing slight physical injury.

CAUTION

Risk of material damage.

Signals important information.

¼Signals a referral to other instructions or other pages in the instructions.

2.1.2. Symbols used on the equipment

Protective earthing

Alternating current

Before installing and commissioning the device, read carefully the instruction manuals provided.

Dispose of the used products in an appropriate recovery and recycling structure.

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This appliance must be connected to the protective earth.

1 2

M002628-A

2. About this manual AFC 18 - AFC 24 - AFC 30

Caution: danger, live parts. Disconnect the mains power prior to any operations.

2.2 Abbreviations

4 3CE: Collective conduit for sealed boiler 4 3WV: 3-way valve 4 PCU: Primary Control Unit - PCB for managing burner operation 4 PSU: Parameter Storage Unit - Parameter storage for PCBs

PCU and SU

4 SCU: Secondary Control Unit - DIEMATIC iSystem control panel

PCB

4 SU: Safety Unit - Safety PCB 4 DHW: Domestic hot water 4 Hi: Lower heating value LHV (Nett) 4 Hs: Higher heating value HHV (Gross) 4 HL: High Load - DHW tank with plate exchanger 4 SL: Standard Load - DHW tank with coil 4 SHL: Solar High Load - Solar DHW tank with plate exchanger 4 MC: Boiler module 4 CFC: Chlorofluorocarbon

2.3 After Sales Service Internet Site

The QR code or flashcode is used to access the internet site containing the documentation and technical information regarding the product. The QR code also appears on the appliance’s nameplate.

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AFC 18 - AFC 24 - AFC 30 3. Technical specifications

3 Technical specifications

3.1 Homologations

3.1.1. Certifications

CE identification no Type of connection Chimney: B23, B

CE : 1312 CN 5691

Flue gas outlet: C

23P

13(x)

, C

33(x)

, C

93(x)

3.1.2. Oil category

4 Standard oil as well as low sulfur content oil (max. viscosity 6 mm²/

s at 20°C)

4 Bio-oil max. B10 (max. viscosity 6 mm2/s at 20°C).

- The bio-fuel oil B10 (or Bio 10) is a mixture of fuel oil with low sulfur content (< 50 mg/kg) supplemented with 5.9 to 10.9 % FAME* (% in volume).

- The bio-fuel oil B5 (or Bio 5) is a mixture of fuel oil with low sulfur content (< 50 mg/kg) supplemented with 3 to 5.9 % FAME* (% in volume).

- FAME* is produced from vegetable oil or processed animal fat. EMAG: Fatty Acid Methyl Ester (also called EMAG : Ester Méthylique d’Acide Gras).

3.1.3. Additional Directives

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Apart from the legal provisions and Directives, the additional Directives described in these instructions must also be observed.

For all provisions and Directives referred to in these instructions, it is agreed that all addenda or subsequent provisions will apply at the time of installation.

WARNING

Installation of the appliance must be done by a qualified engineer in accordance with prevailing local and national regulations.

3. Technical specifications AFC 18 - AFC 24 - AFC 30

3.1.4. Factory test

Before leaving the factory, each boiler is set for optimum performance and tested to check the following items:

4 Electrical safety 4 Adjustment (CO2) 4 Water tightness 4 Oil tightness 4 Checked the tightness of the combusted gas outlet and air inlet 4 Parameter settings.

On commissioning, the installer is responsible for checking the items mentioned above and, where necessary, correcting them.

3.2 Technical specifications

3.2.1. Boiler specifications

Test conditions:

4 CO2 of 12% at min output and 13% at max output with oil. 4 Maximum operating pressure - Primary circuit (heating water):

3 bar (0.3 MPa)

4 Maximum operating temperature: 85 °C 4 Boiler temperature: Adjustable from 30 to 90 °C 4 Safety thermostat: 105 °C 4 Min flow temperature: 20°C 4 Min. return temperature : 20°C 4 Ambient temperature: 20 °C

Boiler

Power input (Hi) kW 10.4 17.6 13.9 23.5 17.4 29.4 Nominal output (Pn) at 40/30°C kW 10.7 18.2 14.3 24.3 17.8 30.3

Nominal output (Pn) at 50/30°C

Nominal output (Pn) at 80/60°C kW 10 17.1 13.4 22.8 16.7 28.6

(1) These values are pertinent for flexible flue gas evacuation systems with a diameter of 80 mm (rigid ducts). The length of rigid flue gas evacuation systems is restricted to 18 metres for technical reasons relating to start-up. (2) 1 mbar = 10 mmWG = 100 Pa

AFC 18 AFC 24 AFC 30

Minimum power

10.6 18 14.1 24 17.6 30

Full power

Minimum power

Full power

Minimum power

Full power

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AFC 18 - AFC 24 - AFC 30 3. Technical specifications

Boiler AFC 18 AFC 24 AFC 30

LHV efficiency 100 % Nominal

Minimum power

% 96.3 97.2 96.4 97.1 95.9 97.4

Full power

Minimum power

Full power

Minimum power

Full power

output (Pn) at 80/60°C

Flue gas

°C <60 <70 <60 <70 <65 <75

temperature 100 % Nominal

% 101.5 102.1 101.4 102 101.1 101.6 output (Pn) at 50/30°C

Flue gas

°C <40 <45 <40 <45 <45 <50 temperature

100 % Nominal

% 102.9 103.5 102.6 103.2 102.5 103 output (Pn) at 40/30°C

Flue gas

°C <40 <45 <40 <45 <45 <50 temperature

Annual efficiencyHiat 75/60°C % 101.1 100.9 100.7

at 40/30°C % 105.3 105.1 104.6

Pressure available at the flue gas nozzle (Pn)

CO2 content (Minimum output - Start-

(1)

mbar

0.14 0.22 0.33

Pa 14 22 33

% 12 - 13 - 13 12 - 13 - 13 12 - 13 - 13

up output - Maximum output Nominal water

ΔT = 20K

m3/h

0.773 1.032 1.291 flow rate at Pn (50/30 °C)

Stand-by losses ΔT = 30K W 109 109 128 Percentage of

ΔT = 30K % 61 61 63 losses through the walls compared with the stand-by losses

Loss of load hydraulic circuit (Pn)

ΔT = 10K

ΔT = 15K

ΔT = 20K Electrical power of the boiler only with

(2)

mbar mbar mbar

66.0 117.0 183.0

(2)

29.0 52.0 81.0

(2)

16.0 29.0 46.0

W 128 272 128 272 128 272

no accessories Water content litres 47 47 58 Mass flue gas flow rate (Nominal

output Pn 50/30 °C)

kg per sec

0.0075 0.01 0.0125

Kg/h 27 36 45

Net weight (without packaging) kg 117 117 135

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3. Technical specifications AFC 18 - AFC 24 - AFC 30

3.2.2. Burner specifications

Modulating burner F10E2-5.18 +

AFC 18

F10E2-5.24 + AFC 24

F10E2-5.30 + AFC 30

Operation Modulating Modulating Modulating Nominal output Fuel flow

(2)

(1)

kW 10.4 - 17.6 13.9 - 23.5 17.4 - 29.4 Kg/h 0.9 - 1.5 1.2 - 2.0 1.5 - 2.5

Modulation range % 59 - 100 59 - 100 59 - 100 air nozzle Ø 19 22 26 Nozzle Danfoss (80°S) USG 0.30 0.40 0.50 Modulating oil pump Manufacturer’s pressure margin bar (MPa) 7 - 20

(0.7 - 2.0)

Max depression bar (MPa) 0.35

(0.035)

Max permitted pressure on entry bar (MPa) 2

(0.2)

Max permitted pressure on blocking bar (MPa) 2

(0.2)

7 - 22 (0.7 - 2.2)

0.35 (0.035)

2 (0.2)

7 - 22 (0.7 - 2.2)

0.35 (0.035)

2 (0.2)

Max pump air flow at 10 bar (1 MPa) l/h 45 45 45

(1) Power at an altitude of 400 m and at a temperature of 20°C. Heating value of fuel oil: LHV = 11,86 kWh/kg (2) Bio-oil max. B10 (max. viscosity 6 mm2/s at 20°C)

3.2.3. Sensor characteristics

Outside sensor

Temperature in °C -20 -16 -12 -8 -4 0 4 8 12 16 20 24 Resistance in Ω 2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Outlet sensor circuit B+C Domestic hot water sensor System sensor Flow sensor - Return sensor NTC

Temperature in °C 0 10 20 25 30 40 50 60 70 80 90 Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

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C003130-G

AFC 18 - AFC 24 - AFC 30 4. Product description

4 Product description

4.1 General description

Floor-standing condensing oil boiler

4 Heating only (Optional domestic hot water production in

combination with a DHW tank).

4 High efficiency heating. 4 Low pollutant emissions. 4 Modulating oil burner preassembled and preset. 4 Stainless steel heating body. 4 Top of the range electronic DIEMATIC iSystem control panel. 4 Flue gas discharge via a forced flue or chimney type connection.

4.2 Operating principle

4.2.1. Skeleton Diagrams

Boiler self-standing - Circuit A

On/Off switch

Control panel

Burner

Automatic air vent

Heating flow

Heating return

Heating body

Circulation pump

0.3 MPa safety valve (3 bar)

Condensate trap

Flue gas discharge

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C003131-i

15 1110

4. Product description AFC 18 - AFC 24 - AFC 30

Boiler with 3-way valve option - Circuit B (Option

integrable)

On/Off switch

Control panel

Burner

Automatic air vent

Heating flow direct circuit

Heating return direct circuit

Heating body

Direct circuit circulating pump

0.3 MPa safety valve (3 bar)

Condensate trap

Flue gas discharge

3-way valve

Heating return valve circuit

Heating flow valve circuit

Heating pump circuit mixing valve

Non-return valve

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M002429-G

AFC 18 - AFC 24 - AFC 30 4. Product description

Boiler with 100HL type domestic hot water tank

On/Off switch

Control panel

Burner

Automatic air vent

Heating flow

Heating return

Heating body

Circulation pump

0.3 MPa safety valve (3 bar)

Condensate trap

Flue gas discharge

Non-return valve

Domestic hot water outlet

Plate heat exchanger

Domestic hot water pump

Domestic hot water tank

Primary domestic hot water load pump

Domestic cold water inlet

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M002430-F

18 17

13712

4. Product description AFC 18 - AFC 24 - AFC 30

Boiler with 160SL type domestic hot water tank

On/Off switch

Control panel

Burner

Automatic air vent

Heating flow

Heating return

Non-return valve

Heating body

Circulation pump

0.3 MPa safety valve (3 bar)

Condensate trap

Calorifier load pump

Flue gas discharge

Domestic hot water tank

Domestic water coil

Manual bleed valve

Domestic cold water inlet

Domestic hot water outlet

Configuration with a DHW tank also enables the connection of a circuit with mixing valve.

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C003834-C

12 7 13 1514

AFC 18 - AFC 24 - AFC 30 4. Product description

Boiler with 220SHL type domestic hot water tank

On/Off switch

Control panel

Burner

Automatic air vent

Heating flow

Heating return

Non-return valve

Heating body

Circulation pump

0.3 MPa safety valve (3 bar)

Condensate trap

Calorifier load pump

Flue gas discharge

Domestic water solar coil

Primary solar circuit filling and draining device

Solar expansion vessel 12 l

solar circulation pump

Domestic hot water tank

Antithermosiphon valve operated by the spherical plug valve

Degasser with manual purge to the solar circuit drain valve

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M003250-A

(mbar)

(m3/h)

100

150

200

250

300

350

400

450

500

550

600

650

700

750

0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2 2,2 2,4 2,6 2,8 3 3,2 3,4 3,6

4. Product description AFC 18 - AFC 24 - AFC 30

Solar regulator

Solar safety valve

Plate heat exchanger

Solar collectors

Domestic cold water inlet

Non-return valve

Domestic hot water thermostatic mixing valve

DHW pump

4.2.2. Circulation pump

Boiler pressure drop (with valve)

Boiler pressure drop (without valve)

Circulation pump (Class A pump)

Water flow

Manometric height central heating circuit

The boiler is fitted with a modulating pump which is regulated by the control panel as a function of ΔT= (Flow T °C - Return T °C).

The graph shows the manometric height at various outputs. The parameters MIN.PUMP SPEED and MAX.PUMP SPEED are used to modify the pump settings. If flow noise can be heard in the system, it is possible to reduce the maximum pump speed with the parameter MAX.PUMP SPEED (First of all, vent the heating system). If circulation in the radiators is too low or the radiators do not fully heat up, increase the minimum pump speed with the parameter MIN.PUMP SPEED.

¼See chapter: "Professional settings", page 114.

4.2.3. Water flow rate

The boiler’s modulating control system limits the maximum difference in temperature between the heating flow and return and the maximum speed at which the flow temperature increases. In this way, the boiler does not require a minimum water flow rate.

4.2.4. Burner operating cycle

Sequence

0r 2

Sequence displayed Description

x - x Heating request - Domestic hot water mode x - x Fan speed

x - x Fuel oil pressure

Legend

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AFC 18 - AFC 24 - AFC 30 4. Product description

Arc

x - x Flame detection x - x Ignition stage

x - x Start-up threshold x - x Fuel pre-heater x - x Anti-short cycle x - x Burner off 2 - 13 Reheat fuel oil (Max 400 seconds) 2 - 14 Pre-ignition and preventilation time (15 seconds) 2 - 15 Electro-valve opening (No flame presence)

Max time: Safety time (TS = 5 seconds) 2 - 16 Post-ignition time (7 seconds) 2 - 17 Flame stabilisation (for 20 sec) x - x Output modulation 5 - 41 Post-ventilation (120 seconds)

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ITR

C003259-E

P. Oil

( )

Arc

4. Product description AFC 18 - AFC 24 - AFC 30

Normal start-up

09/07/2015 - 300026439-07

C003223-E

ITR

P. Oil

Arc

AFC 18 - AFC 24 - AFC 30 4. Product description

Start-up without flame detection

09/07/2015 - 300026439-07

M003249-B

ITR

Arc

( )

C4 C4

4. Product description AFC 18 - AFC 24 - AFC 30

Loss of the flame signal whilst in operation

09/07/2015 - 300026439-07

C003129-G

34 12

AFC 18 - AFC 24 - AFC 30 4. Product description

4.3 Main parts

4.3.1. Boiler

Fuel supply pipes

Oil filter (40 µm) + deaerator + stop valve

Modulating oil burner preassembled and preset

Flue gas measuring point / Combustive air

Flue gas discharge pipe (Diameter 80 mm)

Air intake (Diameter 125 mm)

Expansion vessel 18 litres

Electronic pressure sensor (Pressure in the heating circuit)

Modulating heating pump

Condensates evacuation pipe

Drain cock

0.3 MPa safety valve (3 bar)

Condensate trap

Heating pump circuit mixing valve (Option)

Motorised 3-way mixing valve (Option)

Connection PCBs (PCU + SCU)

Command module

On/Off switch

Flue gas pressure switch

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20 19

18 17

16 15

7 8 9

321

26 27

C003219-G

4. Product description

AFC 18 - AFC 24 - AFC 30

4.3.2. Fuel oil burner

Modulating motor

Pressure sensor

Modulating oil pump

Control box display - Not used

Burner control and safety box

Recirculation slot adjustment screw

Flame detection cell (IRD at 18 kW and BST at 24–30 kW)

Head air pressure measurement point

Ignition transformer

Door handle

BUS cable for connection to the control system

Flame tube

Recirculation slot

Burner pipe

Component plate

Modulating motor management box

4.4 Package list

Air enclosure

Air inlet

Fuel supply pipes

Door handle + Flexible mounting flange

Connector 230 V

Filling line

Pre-heater

Combustion head

air nozzle

Nozzle

Ignition electrode

4.4.1. Standard delivery

The delivery includes:

4 The assembled boiler with the burner 4 The oil filter + the deaerator + the stop valve 4 The outside sensor

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AFC 18 - AFC 24 - AFC 30 4. Product description

4 The horizontal or vertical terminal (depending on the version) 4 The installation and maintenance instructions 4 The user instructions

4.4.2. Accessories

Various options are available depending on the configuration of the installation (Depending on country) :

Boiler options

Description package

Condensates neutralisation station FM155 Refill of 5 kg of granules and 0.5 kg of activated carbon FM156 Bracket for neutralisation station FM157 Condensates lift pump FM158 3-way internal valve kit MV5 External circuit kit MV6 Adapter kit for external heating pump MV30 3-way internal valve kit HEE - Class A pump MV31 DHW thermostatic mixing valve kit MV10 18-litre expansion vessel MV4

Flue gas system options

Description package

Chimney connection kit PPS diameter 80/110 mm DY876 Air/flue gas terminal horizontal forced flue FM183 Air/flue gas terminal vertical forced flue Black DY843

Red DY844

Back flue gas outlet kit MV9

Control system options

Description package

RX12 cable AD134 TELCOM2 voice remote monitoring module AD152 Flow sensor AD199 DHW sensor AD212 Optional PCB for 3-way valve AD249 Hot water storage tank sensor AD250 Outside radio-controlled temperature sensor AD251 Boiler radio module AD252 Radio remote control AD253 Interactive remote control AD254 Room sensor FM52

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Domestic hot water tank options

Description package

Domestic hot water tank 100HL ER225 Domestic hot water tank 160SL ER223 Solar domestic hot water calorifier 220SHL ER220

4. Product description AFC 18 - AFC 24 - AFC 30

Domestic hot water tank options

Description package

100HL recirculation kit ER218 160SL/220SHL recirculation kit ER219 Boiler/DHW tank hydraulic connecting kit 100HL MV7 Boiler/DHW tank hydraulic connecting kit 160SL MV8 Boiler/DHW tank hydraulic connecting kit 160SL - HEE -

MV32

Class A pump Connecting kit for external DHW tank - HEE - Class A pump MV33 Boiler/solar DHW tank hydraulic connecting kit 220SHL MV11 Boiler/DHW tank hydraulic connecting kit MV18

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+ 150 hidden pages

DeDietrich MODULENS O AFC 18, MODULENS O AFC 24, MODULENS O AFC 30 Installation And Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual