Ferroli ROMA 55 FF Guida utente

These Instructions are to be left with the User or adjacent to the gas meter.

FERROLI ROMA 55 FF

WALL MOUNTED,

FANNED FLUE BOILER

INSTALLATION

& SERVICING

INSTRUCTIONS

G.C. Appliance No. 4126705

Please read these Instructions

thoroughly before using

the appliance

FERROLI HELPINE

FOR SERVICE INFORMATION OR

HELP TELEPHONE: 08707 282 885

ALWAYS QUOTE SERIAL NUMBER

FOR IMMEDIATE ASSISTANCE

Phone numbers:

Installer ________________________

Service Engineer _________________

Serial N°________________________

ROMA 55 FF

LIST OF CONTENTS

1 General description and information

2 Technical data

3 Boiler flow diagram

4 Key boiler flow diagram

5 Installation data

5.01 Water systems

5.02 Open (vented) systems

5.03 Sealed systems

5.04 Pump selection

5.05 Drain points

5.06 Hot storage vessel

5.07 Quality of componets

5.08 Corrosion inhibitors, flushing

5.09 Flue system

5.10 Se duct terminator

5.11 Ventilation

6 Terminal position (outside)

7 Terminal position

8 Location

8.01 Boiler location

9 Boiler connection

9.01 Gas supply

10 Electricity supply and connections

11 Boiler flow diagram

12 Electrical functional

13 Illustrated wiring diagram

14 Installation procedure

14.1 Unpacking

14.2 Prepare the boiler

14.3 Prepare the wall

14.4 Prepare the flue and air pipes

14.5 Mouting the boiler

14.6 Connections services

15 Commissioning

16 Fault finding

16.1 Fault finding

16.2 Fault finding

17 Replacement of parts

17.01 General procedures and notes

17.02 Acces

17.03 Fan

17.04 Pilot burner assembly

17.05 Electrode

17.06 Thermocouple

17.07 Thermostats

17.08 Main burner/injectors

17.09 Heat exchanger

17.10 Combustion chamber insulation

17.11 Viewing window

17.12 Pressure switch

17.13 Gas control valve

17.14 Viewing window

17.15 Control box components

18 Routine servicing

18.01 General

18.02 Pre-servicing

18.03 Servicing procedures

18.04 Reassembly

19 Parts

20 Parts list

ROMA 55 FF

1. General description and information

1.1 Information

1. Installation must be carried out by a competent person, and in accordance with the relevant requirements of the

current issues of:

A. Gas Safety (Installation & Use) Regulations.

B. Building Regulations.

C. Building Standards (Scotland) Regulations.

D. I.E.E. Wiring Regulations.

E. Bye-laws of the local water undertaking.

Guidance on Installation is provided in this booklet, but due account must be taken of the detailed recommendations

of the current issues of:

BS 5440 Part 1: Flues.

BS 5440 Part 2: Ventilations.

BS 6798: Installation.

BS 5449: Pumped systems.

BS 5546: Domestic hot water.

BS 6700: Water supply.

BS 6891: Gas supply.

BS 7074 Part 1: Expansion vessels.

For installation in timber framed buildings, refer to the British Gas Publication Guide for gas installation in timber

framed housing - REF DM2.

2. It is essential that the boiler be installed strictly in accordance with these Instructions and the documents, detailed

above.

3. To avoid the possibility of injury, care must be taken when handling sheet metal componets.

1.2 General description

TheROMA55FFisawallmountedfannedflueboiler,sultableforconnectiontosealed or open vented water systems,

supplying central heating and/or indirect (stored) domestic hot water.

A balanced flue system is supplied, suitable for horizontal and vertical termination only, but which can, if desired, be

taken from the rear, sides or top of the boiler*.

NOTE

* Side exit or vertical exit requires the optional side / vertical flue turret.

ROMA 55 FF

2. Technical data

HEAT INPUT 20 KW 68,200 Btu/h 10 kW 34,100 Btu/h

HEAT OUTPUT 16 KW 55,000 Btu/h 7.3 kW 25,000 Btu/h

BURNER PRESSURE 12 mbar 4.7 in wg 2.4 mbar 1.0 in wg

GAS RATE - AFTER 10 MINUTES 1.9 m3/h 66 ft3/H 0.95 m3/h 33 ft3/h

GAS CONNECTION SIZE / POSITION 1/2" Bsp / left hand side, rear base

GAS MAXIMUN OF RANGE MINIMUM OF RANGE

MAXIMUN HEAD OR PRESSURE 30 m 43.5 psi 3.0 bar 43.5 psi

MINIMUM HEAD OR PRESSURE 0.2 m 8" 0.8 bar 11.6 psi

if pressurised type

MAXIMUM FLOW TEMPERATURE 85°C85°C

TEMPERATURE DIFFERENTIAL 11°C beetween flow and return connections, recommended

MINIMUM WATER FLOW RATE 0.36 m3/h 12.7 ft3/h

WATER CONTENT 0.5 litres 0.11 gal.

CONNECTIONS 22 mm compression, right hand side, rear, top

WATER OPEN VENTED SEALED

ELECTRICAL

SUPPLY Mains supply 230 V ~ 50 Hz fused 3 Amp.

POWER CONSUMPTION 50 Watt (without pump)

CONNECTIONS MAINS / CONTROL 5 wire electrical lead

Brown - Live Permanent

Blue - Neutral mains supply

Green/Yellow - Earth 230 V ~

Black - Switched Live from external controls

Red - Live to external controls

CONNECTIONS PUMP 3 wire electrical lead

Brown - Live To

Blue - Neutral circulating

Green/Yellow - Earth pump

}

ROMA 55 FF

3. Boiler flow diagram

ROMA 55 FF

4. Key boiler flow diagram

POS. G.C. No. DESCRIPTION Q.ty

3. Flue/air intake (side outlet) 1

16. Complete fan RL 85/0034A1 3025LH 422 1

21a. Main injector N.G. 1.25 9

21b. Main injector L.P.G. 0.72 9

23. Thermocouple 1

24. Complete spark electrode 1

25. Pilot 1

27. Copper heat exchanger 1

43. Air pressure switch 1

44. Combination gas valve V4600C 1193 1

49. Overheat cut/off thermostat 1

50. Central heating limit thermostat 1

58. Combustion chamber pressure test point (+) 1

59. Flue outlet pressure test point (-) 1

63. C.H. boiler thermostat 1

66. Microswitch combination gas valve 1

67. Ignition transformer (CAST) 1

79. Capacitor fan IMF 1

80. Complete P.C.B. VF.1 1

87. Venturi flue testpoint 1

103. Relay 1

104. Fuse 2A 1

105. Complete burner set 1

106. Gascock 1

107. Flue/air intake flange rear outlet 1

108. Combustion chamber outlet cover 1

109. Combustion chamber insulation, back and sides 1

110. Eco split wire 1

111. Combustion chamber front panel 1

112. Pilot injector N.G. 0.27 1

112b. Pilot injector L.P.G. 0.22 1

133. Pump overrun thermostat 1

ROMA 55 FF

5. Installation data

* h = maximum head developed by pump.

5.1 Water System

General

1. The ROMA 55 FF will supply central heating and, via an indirect cylinder, stored hot water.

2. All water systems must be in accordance with the Bye-Laws of the Local Water Undertaking.

3. Only fully pumped systems can be used.

4. Two pipe heating systems are recommended.

5. Systems can be either of the open (vented) or sealed type.

5.2 Open (Vented) System

1. Further guidance: BS 5449, BS 6798 and British Gas Publications.

2. Two typical systems are shown above. Note that close coupled or combined feed and vents are permitted.

3. Cold Feed: Minimum 15 mm copper but minimum 22 mm if combined with open vent.

4. Open Vend: Minimum 22 mm copper.

5. No valves between the boiler and the open vent.

6. A Bypass must be fitted which allows a minimum flow of 6 litres/min. (1.3 gal/min.)

ROMA

MAX. 150 mm.

*h/3 min/mm

INDIRECT

CYLINDER.

ROMA

HEATING

SYSTEM

OPEN VENTED

CLOSE COUPLED

FEED AND VENT.

*h/3 min/mm

INDYRECT

CYLINDER

HEATING

SYSTEM.

OPEN VENTED

FEED ON RETURN

ROMA 55 FF

5.3 Sealed System

1. Further guidance: BS 5449, BS 6798, BS 7074 Part 1, British Gas Publications.

2. Two typical sealed systems are shown, above.

3. COMPONENTS:

a) EXPANDION VESSEL.

To BS 4814. Sized according to BS 5449 and/or BS 7074 Part 1. Positioned on the inlet to the pump.

b) SAFETY VALVE.

Always on the flow and next to the boiler. Non adjustable and set to 3 bar. Routed direct to drain in an area not

susceptable to freezing, nor where it is hazardous. Do not reduce pipe size from that on the valve.

c) PRESSURE GAUGE (May incorporate a temperature gauge).

Must have a fill pressure indicator, and be readily visible to the User. Range 0 to 4 bar.

d) AIR VENT. Highest point of the system.

e) PUMP. Suitable for the system. See 5.4.

f) FILLING POINT.

Shallbeatlowlevel,inaccordancewithlocalWaterAuthorityrequirement,andgenerallyhaveastopvalvetoBS1010,

as well as a double check valve. Filling can be achieved either by means of a temporary hose or via a cistern used for

no other purpose, with a minimum static head of 300 mm to the highest point of system.

g) SYSTEM MAKE UP.

Canbeachieved either automatically - from an independent cistern used for nootherpurpose,orfromamanuallyfilled

top up bottle through a double check valve, OR manually, by a temporary hose connection.

IMPORTANT

Any method of filling and of make up MUST comply with Regulations of the Local Water Authority.

ROMA ROMA

SEALED SYSTEM

PUMP ON THE FLOW SEALED SYSTEM

PUMP ON THE FLOW

ROMA 55 FF

Boiler pressure loss

5.4 Pump selection

Suitable pump should be fitted taking due account of the pressure loss across the boiler.

Pump to comply with BS 1394. A minimum flow rate of 6 litres/min (1.3 gal/min) is required.

5.5 Drain points

Must be provided to enable the system to be drained - taps to BS 2879.

5.6 Hot water storage cylinder

Must be either of the indirect coil type or a direct cylinder suitably adapted by fitment of an immersion calorifier. Direct

cylinders must not be used.

5.7 Quality of components

All components, fittings, and joint must be suitable for temperatures up to 110°C and, for sealed systems, pressures

up to 3 bar.

5.8 Flushing

Anysystem,neworold,mustbeflushedinaccordancewiththeCommissioningInstructions.Itisessentialthatasmuch

residual sludge and debris be removed as is possible.

mbar

litres/sec

gal/min

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