Ferroli GN1 N Manuale utente

Supplied By www.heating spares.co Tel. 0161 620 6677

GN1 N

CAST IRON HIGH EFFICIENCY SECTIONAL BOILER,

FOR GAS/OIL FUELS

3544083/1 - 03/2002

Supplied By www.heating spares.co Tel. 0161 620 6677

• Toguaranteeefficientoperation,theappliance

must be serviced once a year by an authorised

servicecentre.

• The appliance may not be used for purposes

other than those for which it was explicitly

designed.Anyotheruseisconsideredimproper

andthereforedangerous.

• Incorrectinstallationanduseorfailuretofollow

the instructions provided by the manufacturer

absolve the manufacturer from all liability for

damage.

• After unpacking, check that the contents are

wholeandundamaged.

• Keeppackagingoutof reach of children as it is

potentiallyhazardous.

• To clean external parts, use a damp cloth

moistenedwithsoapywaterifnecessary.Avoid

usingabrasivecleaningproductsandsolvents.

General instructions

• Readthewarningsgiveninthismanualthoroughly.

They provide important information for safe

installation,useandmaintenance.

• Keepthemanualcarefullyforfutureconsultation.

• Theinstructionmanualisanintegralandessential

partoftheproductandmustbekeptbytheuser.

• Iftheapplianceissoldortransferredtoanother

owneroriftheownermoves,leavingtheappliance

behind,alwaysensurethatthemanualiskeptwith

theapplianceforconsultationbythenewowner

and/orinstaller.

• Incorrectinstallationorpoormaintenanceabsolves

themanufacturerfromallliabilityfordamageto

peopleorthings.

• Installationandmaintenancemustbecarriedout

inconformitywithcurrentlegislation,according

tothemanufacturer'sinstructionsandbyqualified

personnel.

• Beforecleaningormaintenance,disconnectthe

appliance from the mains via the switch on the

applianceorasuitableisolatingdevice.

• In the event of malfunction or faulty operation,

deactivatetheappliance.Donotattempttorepair

orcarryoutanyotheroperationontheappliance

directly.Contactqualifiedpersonnelonly.

• Repairsorthereplacementofcomponentsmust

becarriedoutexclusivelybyqualifiedpersonnel

usingoriginalsparepartsonly.Failuretorespect

the above may compromise the safety of the

appliance.

Mars

The CE mark indicates that the appliance

satisfies all the essential requisites of the gas

appliance directive (90/396/CEE) and the

technical standards referred to.

Supplied By www.heating spares.co Tel. 0161 620 6677

Index

1.Technicalinfor mations ........................................................................................................................... 4

2. Dimensionsandtechnical data ............................................................................................................. 5

3. Packingandshipment ........................................................................................................................... 6

4. Installation ............................................................................................................................................. 7

5. Testing ................................................................................................................................................... 8

6. Service ................................................................................................................................................... 9

Supplied By www.heating spares.co Tel. 0161 620 6677

Fig. 1

1. TECHNICAL INFORMATIONS

1.01 Introduction

GN1 N boiler is a new heating generator with high efficiency, for central heating system as well sanitary hot water

production suitable for burners using oil or gas.

The boiler body is built by cast iron sections joined togheter by mean of biconical nipples and tie rods. Sections fins

areespecially developedto achievethe bestefficiencyoftheboilerinorder tosave onfuel consumption.The boiler

body insulation is provided by mineral high density fibers that minimizes the body heat lost.

Key

1 Timer sochet

2 Thermomanometer

3Security thermostat manual resetting

4Main switch

5 Control thermostat

1.02 Control and securities devices operation

Regulating thermostat, manual resetting 3 (fig. 1)

Itoperateswhenthe boilertemperature,duringthe heatingmodereachsuch alevelthatcan useadangersituation.

Before resetting this thermostat ask for Qualified Serviceman to inspect the appliance.

Central thermostat 5 (fig. 1)

It allows to control the boiler temperature by mean of its knobs.

This thermostat controls the burner.

Room thermostat (not supplied)

This device is not supplied, but can be fitted by installer, it is connected in series to the control thermostat and it

manages both the burner and the circulating pump during the heating mode. The use of such appliance is advised

to get a better comfort as well on energy saving.

1 3 452

Supplied By www.heating spares.co Tel. 0161 620 6677

Fig. 2

2. DIMENSIONS AND TECHNICAL DATA

2.01 Dimensions and technical data (fig. 2 - tab. 1)

Key

a1 Flow 11/2"

a2 Return 11/2"

a3 Boiler drain 11/2"

N.B.: - Max. water temperature for the heating system is 90°C. - Min. water temperature for the heating system is

45°C.

Water

load losses

Model

Heat and

D.H.W.

(gross)

gas

Max.

28,6

57,3

71,6

86,1

100,4

114,7

Heat and

D.H.W.

output

Max.

23,3

34,9

46,5

58,1

69,8

81,4

93,0

Heat and

D.H.W.

(net)

gas+oil

Max.

25,8

38,7

51,6

64,5

77,5

90,4

103,3

Heat and

D.H.W.

(gross)

gas

Min.

18,2

39,3

49,1

59,1

68,8

78,6

Heat and

D.H.W.

(net)

gas+oil

Min.

16,4

35,4

44,2

53,2

62,0

70,8

Heat and

D.H.W.

output

Min.

15,0

32,5

40,5

48,8

57,0

65,0

N°

element

Water

capacity

dm3

Combustion

chamber

lenght

286

386

486

586

686

786

886

Combustion

chamber

dimension

Ømm

260x310

Model

GN1 N 02

GN1 N 03

GN1 N 04

GN1 N 05

GN1 N 06

GN1 N 07

GN1 N 08

GN1 N 02

GN1 N 03

GN1 N 04

GN1 N 05

GN1 N 06

GN1 N 07

GN1 N 08

Working

pressure

bar

300

400

500

600

700

800

900

105

125

130

180

Combustion

chamber

load loss

∆p mbar

0,2

Combustion

chamber

volume

12,09

20,15

28,21

36,27

52,39

60,45

68,51

∆t

1,8

4,2

7,2

∆t

1,6

2,3

3,3

4,5

Weight

of unit

kg.

100

125

150

175

200

225

a2 a3

400

850

270

542

711

1” 1/2

1/2”

1” 1/2

Supplied By www.heating spares.co Tel. 0161 620 6677

2.02 Pressure drop (fig. 3)

Pressure drops according to the boiler size are specified on the following diagram and refer to temperature

difference between flow and return comprises between 10 and 20°C.

Fig. 3

3. PACKING AND SHIPMENT

Boiler is delivered complete assembled in a wood crate.

Fig. 4

Supplied By www.heating spares.co Tel. 0161 620 6677

159

T2 S3T1

160

14192345678 1011 12 13

230V 50Hz

15 16

123 4 56 7 8 9 101112

211

189

4. INSTALLATION

It is law that all gas appliances are installed by Competent Persons, in accordance with the regulations. Failure to

install appliances correctly lead to prosecution, it is your own interest, and that of safety, to ensure that the law is

copliedwith. Manufacturers instructionsmustNOT be takenin any wayas over-riding statutoryobligations, special

care must be paid to conform with law and regulation concerning building and location of the chimney.

4.01 Electrical connection

Proceed to wire pump, burner and optional room thermostat. According to the wiring diagrams (fig.5) and to the

directionsattached to thecables. Itisrecommended toinstall a two-poleswitch between thepower supplyandthe

boiler. The switch contacts must have a clearance of at least 3 mm and fuses of 5 A max must be provided.

N.B. - Appliance must be earthed.

It is recommended to connect the boiler to a good electric earth system.

FERROLI could not be considered responsable for any kind of damage to Persons or things caused by

failure of earthing the system.

Fig. 5a

Key

32 Central heating pump

49 Overheat cut-off thermostat

63 C.H. boiler thermostat

72 Room thermostat (not fitted)

98 Switch

159 Test knob

160 Auxiliary contact

189 Boiler shut down warming

211 Burner connector

Note = Dotted lines indicate connections to be performed during installation

Supplied By www.heating spares.co Tel. 0161 620 6677

Electrical diagram

4.02 Hydraulic connections

Boiler must be connected to the system according to boiler back part indications and those provided at fig. 2. Pipe

mustbe free ofanykind of strainand security valvesmust be providedinboth central heatingsystem and domestic

hotwatersystemlocationofsuchsecurityvalvesbeascloseispossibletotheboilerandbetweentheboilerandvalve

no obstructions or gate valves must be placed.

The boiler is not supplied with expansion tank it has to be provided during the boiler installation. It is advised that

the pressure in the hydraulic system has to be between 0,5 and 1 bar measured in cold water condition.

4.03 Connection to the chimney

It is recommended to connect the boiler to a good working chimney built according to the regulations. The

connectionbetweenboilerandchimneymustbedonebyusingsuitablematerialproofagainsthightemperatureand

corrosion.Whereflue sections haveto be connected itis advised payattentionto avoid leakingand provided good

insulation through all the flue length to avoid condensing problem.

159 d

189

211

9160

11 72

230V

50Hz

Fig. 5b

Key

32 Central heating pump

49 Overheat cut-off thermostat

63 C.H. boiler thermostat

72 Room thermostat (not fitted)

98 Switch

159 Test knob

160 Auxiliary contact

189 Boiler shut down warming

211 Burner connector

Note = Dotted lines indicate connections to be performed during installation

Supplied By www.heating spares.co Tel. 0161 620 6677

5. TESTING

5.01 Before the first light of the boiler

Before the first light of the boiler follow these check list:

a) check the system is filled with water at the right pressure;

b) check against any leakage of water fuel;

c) check that the correct electric power is supplied to the unit;

d) check size and perfect flue installation;

e) check against any type of flammable materials where the boiler is installed;

f) check the burner has the right heat input according to the boiler size;

g) control that the water valves are open.

5.02 First lighting

After the boiler preliminaries checking , the appliance can be lights in the following way;

1) Open the fuel gate valve.

2) Set the regulating thermostat at the required temperature level.

3) Give electric power to the boiler and switch on the main switch 4 (fig. 1) on the boiler control panel.

After above operations the burner will start to run and the boiler will begin to work.

5.03 After the first lighting

After the first lighting it is advisable check:

burner works properly, this checking must be done by appropriate instruments.

Thermostats operate correctly.

Water flows through the system.

Smoke gases evacuate through the flue duct.

5.04 Switch off

To turn off the unit for a short period it is enough to switch off the switch 4 (fig. 1) on the control panel.

Iftheboilerhastobestoppedforlongperiodbesidetoactbytheswitch4,itisnecessarytocutthesupply

offuelbymeanofthegatevalve,inwinterseason,toavoiddamagesduetothefrostitisnecessaryto

addtheantifrostliquidinthesystemortodrainitcompletely.

Supplied By www.heating spares.co Tel. 0161 620 6677

6. SERVICE

The after sale service must be carried out only Qualified Plumbers. It is advise to service the boiler at least once a

year,beforethewinter season.Checkmustincludethe boilercleaning,theperfectoperationofthecontrolsandthe

burner.

Furthermore the flue duct conditions have to be inspected.

6.01 Boiler cleaning

Cut out electric power.

The front panels 1, 2, 3 (fig. 6).

Clean the boiler internal parts.

Check the flue duct and if necessary clean it.

The burner service must be done according the Manufacture Instructions.

Tube Brush

Fig. 6

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