Ferroli GN4 N Guida utente

Instructions for

installation

and operation

HIGH PERFORMANCE

CAST IRON BOILER

FOR LIQUID and/or

GASEOUS FUELS

GN4

2 GN4

GN4

CONTENTS

General ...................................................................................................................................................... 4

Characteristics ........................................................................................................................................... 5

Installation ................................................................................................................................................ 11

Assembling the boiler body ...................................................................................................................... 14

Assembling the casing ............................................................................................................................. 21

Checks ..................................................................................................................................................... 25

Regulation ................................................................................................................................................ 25

Maintenance............................................................................................................................................. 26

4 GN4

Packaging (ill. 2)

The GN4 boiler is split into four packages as fol-

lows:

1. Casing

2. Control panel

3. Elements making up the boiler body

4. Accessory kit for assembling the elements

N.B. The tools for assembly of the elements are

available from your area agent.

GENERAL

fig. 2

fig. 1

1. Casing 2. Control panel

3. Elements 4. Accessory kit

Key

1Electronic control unit (not supplied)

2Burner 1st stage operation hour meter

3Burner 2nd stage operation hour meter

4Burner lock warning light

5Boiler thermometer

6Safety thermometer

7Burner switch and indicator light

8Burner 2nd stage regulation thermostat

9Burner 1st stage regulation thermostat

Description

The GN4 boiler is a new high performance heat

generatordesignedtoproducehotwaterforcentral

heating systems, operating with either liquid fuel

and/or gas burners.

The boiler body consists of cast iron elements

assembled with steel cone inserts and tie rods.

Particularattentionhasbeenpaidtotheprofilewith

optimum division of the fins ensuring high thermal

efficiency and considerable energy savings.

Theboilerisinsulatedwithathicklayerofrockwool

to minimise heat loss.

3456789

GN4

CHARACTERISTICS

Technical specifications (ill. 3)

fig. 3

Key

1. Electronic control unit (optional)

2. Burner 1st stage operation hour meter

3. Burner 2nd stage operation hour meter

4. Burner lock warning light

5. Boiler thermometer

6. Safety thermostat

23456 8 9

11 10

850

463

1279

898

908

463

281.5

Ø D

N°

elements

217

270

324

388

452

516

600

695

Max.

200

250

300

360

420

480

560

650

Max.

heat output

Delivered heat output

Operating

pressure

bar

1040

1170

1300

1430

1560

1690

1820

1950

840

950

1060

1170

1280

1390

1500

1610

Body

weight

kg.

Combustion chamber

pressure drop

∆p mbar

0,5

0,8

0,7

1,0

1,4

1,7

2,6

3,5

120

150

180

215

250

290

330

390

Min.

128

160

192

229

266

309

352

416

Min.

Model

GN4.07/200

GN4.08/250

GN4.09/300

GN4.10/360

GN4.11/420

GN4.12/480

GN4.13/560

GN4.14/650

180

250

Water

pressure drop

∆p mbar

∆t 20°

100

Model

GN4.07/200

GN4.08/250

GN4.09/300

GN4.10/360

GN4.11/420

GN4.12/480

GN4.13/560

GN4.14/650

143

163

183

203

223

243

263

283

Water

content

880

1010

1140

1270

1400

1530

1660

1790

Length of

combustion

chamber

L mm

500

Dimensions of

combustion

chamber

Ø mm

172

198

220

250

270

300

325

350

Combustion

chamber

volume

Ø mm

7. Burner switch and indicator light

8. Burner 2nd stage regulation thermostat

9. Burner 1st stage regulation thermostat

10. Pressure inlet fitting in combustion chamber

11. Inspection window for flame control

A1. Central heating flow outlet DN 80 - 3" gas

A2. Central heating return inlet DN 80 - 3" gas

B1. Low temperature central heating flow outlet DN 80 - 3" gas

B2. Low temperature central heating

return inlet DN 80 - 3" gas

6 GN4

Casing (ill. 4)

fig. 4

15 13

26-27

12 11 10

14 9

GN4

13703465/0 Front left side panel, complete

23703466/0 Top front panel, complete

33703467/0 Bottom front panel, complete

43703464/0 Front right side panel, complete

53702759/0 Type 1 sectional side panel, complete

63120747/0 Bracket, side panel fixing

73702760/0 Type 2 sectional side panel, complete

83702761/0 Type 3 sectional side panel, complete

93100021/0 Pin coupling spring

10 3114204/0 Casing rear wall

11 3400064/0 Coupling pin

12 3650363/1 Dual cable clamp

13 3702766/0 Type 3 complete sectional cover

14 3114203/0 Casing support rear plate

15 3702765/0 Type 2 complete sectional cover

16 3702764/0 Type 1 complete sectional cover

17 3500338/0 Screen-printed plug

18 3620039/0 Red pilot light

19 3645001/0 Thermometer 0-120 °C

20 3640145/0 Safety thermometer

21 3610020/0 Unipolar switch

22 3670128/0 Complete knob for thermostat

23 3640121/0 Regulating thermostat

24 3650480/0 Clock

25 3120752/0 Wiring support plate

26 3820090/0 Control panel

27 3850485/2 Wiring

28 3410044/2 Hinge

8 GN4

fig. 5

Boiler body (ill. 5)

75 73 72 71 70 69

47 48 49 50 51 52

55 56 57

41-42

6261

58 59-60

53 54

76 77

GN4

41 3320252/0 Boiler burner door, finished

42 3800703/0 Burner door, complete

43 3535293/0 Mica disk Ø44 - Thickness 0.5

44 3340028/0 Pressure test point

45 3400885/0 Inspection window flange

46 3215253/0 Flange Ø340 - thickness 12

47 3401067/1 Door handle

48 3450582/0 Stud bolt M16x76

49 3410059/0 Boiler door hinge

50 3532088/0 Burner holder insulation

51 3360132/0 Plug

52 3300568/0 Front element, finished

53 3532086/0 Fibre piece 8x1600

54 3532085/0 Fibre piece 8x825

55 3420508/0 Cone insert

56a 3440339/0 Tie rod M16x910

56b 3440340/0 Tie rod M16x1040

56c 3440341/0 Tie rod M16x1170

56d 3440342/0 Tie rod M16x1300

56e 3440343/0 Tie rod M16x1430

56f 3440344/0 Tie rod M16x1560

56g 3440345/0 Tie rod M16x1690

56h 3440346/0 Tie rod M16x1820

57 3300569/0 Intermediate element, finished

58 3300570/0 Rear element, finished

59 3840761/0 Rear diffuser pipework L 352.5

60 3840762/0 Rear diffuser pipework L 482.5

61 3422406/0 Intermediate diffuser pipe

62 3840760/0 Front diffuser pipework

63 3450336/0 Stud bolt M16x75

64 3844366/1 Flanged pipe L 180

65 3450312/0 Stud bolt M16x65

66 3844763/1 Flanged pipe with knob

67 3535291/0 Gasket

68 3450584/0 Plug

69 3401156/0 Blind flange

70 3510018/0 Gasket Øe 133 - Øi 90 - Thickness 4

71 3310089/0 Smokebox

72 3450493/0 Thick nut M16

73 3450494/0 Spring MDE 34x16.3x2

74 3430022/0 Insulating fixing spring

75 3340081/1 Sheath 1" 1/4x235

76 3532084/0 Fibre piece 8x740

77 3532087/0 Fibre piece 8x2730

78 3450583/0 Threaded bar M12x130

79 3370086/0 Gasket

10 GN4

Wiring diagram (ill. 6)

fig. 6

Key

TR1 Burner 1st stage regulating

thermostat

TR2 Burner 2nd stage regulating

thermostat

IB Burner switch

STB Safety thermostat

BZ1 Burner 1st stage hour meter

BZ2 Burner 2nd stage hour meter

BBurner central panel

SB Burner safety light

Flue gas path

fig. 7

TR1 TR2

STB

BZ1 BZ2

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230 V 50 Hz

105

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