Glowworm Swift flow 120 Manuel utilisateur

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

220674B.03.97

Tobeleftwiththeuser

Installation Instructions

120

Fanned Flue Combination Boiler

G.C. No. 47 313 13

One Contact Total Service

Customer Services:

Tel: (01773) 828100

Fax: (01773) 828070



Hepworth Heating Ltd.,

Nottingham Road, Belper, Derbyshire. DE56 1JT

General/Sales enquiries:

Tel: (01773) 824141 Fax: (01773) 820569

This is a Cat I 2H appliance

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

220674B

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

3220674B

0175M

Diagram 1.1

ALL DIMENSIONS IN MILLIMETRES

Rc 1/2(1/2in. BSPT)

GAS CONNECTION

22 mm COMPRESSION

CENTRAL HEATING

15 mm COMPRESSION

DOMESTIC WATER

KEY:

114

168 331 450

2.5

107

783

107 66

130

1 G e n e r a l

1.1 Important Notice

This boiler is for use on natural gas as distributed in the

United Kingdom and Ireland (G20) and cannot be used

on any other gas.

Certification

The boiler is certificated for safety and performance.

It is, therefore, important that no alteration is made to the

boiler unless approved, in writing, by Hepworth Heating

Ltd.

Any alteration not approved by Hepworth Heating Ltd.,

could invalidate the certification, boiler warranty and

may also infringe the current issue of the statutory

requirements.

CE Mark

The CE mark on this appliance shows compliance with:

1. Directive 90/396/EEC on the approximation of the

laws of the Member States relating to appliances burning

gaseous fuels.

2. Directive 73/23/EEC on the harmonization of the

Laws of the Member States relating to the electrical

equipment designed for use within certain voltage limits.

3. Directive 89/336/EEC on the approximation of the

Laws of the Member States relating to electromagnetic

compatibility.

1.2 Sheet Metal Parts

WARNING. When installing the boiler, care should be

taken to avoid any possibility of injury when handling

sheet metal parts.

1.3 Notes for Information

The instructions consist of three parts, Installation,

Servicing and Instructions for Use. They are the

property of the user and must be handed to them on

completion of the installation.

Materials and equipment should be fit for their purpose

and of suitable quality and workmanship.

1.4 Requirements

The installation of this boiler must be carried out by a

competent person in accordance with the rules in force in

the countries of destination.

Manufacturer’s instructions supplied.

Manufacturer’s instructions must not be taken as

overriding statutory requirements.

1.5 Data Label

The data label is on the inner case cover.

1.6 Data

See Tables 1 and 2.

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220674B

1 G e n e r a l

11 9 8 7

Diagram 1.2

KEY

1 - Heat Exchanger

2 - Main Burner

3 - Pilot Burner

4 - Automatic Air Vent

5 - Expansion Vessel

6 - Pump

7 - D.H.W. Hot Outlet

8 - C.H. Return

9 - Gas Supply

10- C.H. Flow

11- D.H.W. Cold Inlet

12- Safety Valve

●Ball valves are fitted in water and gas connections, plus a drain point on all water connections.

✽D.H.W 0.6 to 10bar

working pressure (8.70 to 188lbf/in2)

■Maximum Heating 119 litres

system water (26.2 gallons)

content using with a cold

fitted expansion fill pressure

vessel. of 0.7bar

Electrical supply 240V~50Hz

Electrical rating 130W

Internal Fuse rating: Fuse 1 Type 2AT

Fuse 2 Type 3.15AT

Lift Weight 39.0 kg (85.98 lb)

Total Weight 52.8 kg (116.40 lb)

●Gas connection Rc1/2(

in BSPT)

●Heating and return 22mm compression

●Domestic hot water 15mm compression

Safety valve Preset 3bar (43.5lbf/in2)

Safety valve discharge 15mm copper

Water content 1.74 litres (0.38 gallon)

■Expansion vessel capacity 8 litres (1.76 gallons)

Heating cold fill 0.7bar

pressure minimum (10.1lbf/in2)

TABLE 2

✽Boiler starts at an inlet pressure of 0.6bar but requires 0.8bar for maximum output.

■For larger systems use an additional expansion vessel, see Section 4.

NOMINAL kW 29.0 43.5 10.9

HEAT

INPUT Btu/h 98,950 148,420 37,190

NOMINAL kW 23.5 35.2 8.8

HEAT

OUTPUT Btu/h 80,000 120,000 30,000

BURNER m bar 5.6 13.1 0.3

PRESSURE in.wg 2.2 5.3 0.1

APPROX. m3/h 2.8 4.1 1.0

GAS RATE ft3/h 97.6 146.4 36.7

TABLE 1 C.H. Max D.H.W Max MIN

13- Safety Valve Discharge

14- Water Throttle

15- Mini Expansion Vessel

16- Flow Switch

17- Gas/Air Ratio Unit

18- Multi-Functional Control

19- Pressure Switch-Water

20- Air Pressure Switch

21- Venturi

22- Flue Collector

23- Pressure Sensing Probe

FACTORY PRESET TO 60,000Btu/h

0193M

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

5220674B

1 G e n e r a l

1.7 Gas Supply

The gas installation must be in accordance with the rules

in force in the countries of destination.

The supply from the governed gas meter must be of

adequate size to provide a steady inlet working pressure

of 20mbar (8in wg) at the boiler.

1.8 Electrical Supply

WARNING: The boiler must be earthed.

The installation must be in accordance with the rules in

force in the countries of destination.

All system components shall be of an approved type.

Connection of the whole electrical system of the boiler

and any heating system controls to the electrical supply,

must be through one common isolator.

Isolation should preferably be by a double pole switched

3A fused spur box, with a minimum separation of 3mm

in both poles. The fused spur box should be readily

accessible and preferably adjacent to the appliance.

It should be identified as to its use.

A fused 3A three pin plug and shuttered socket outlet

may be used instead of the fused spur box, provided that

they are not used in a room containing a fixed bath or

shower.

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220674B

0183M

2 B o i l e r P o s i t i o n

✽5

140

150

✽5

800

Diagram 2.1

✽Increase to 25mm clearance from

combustible material

Refer to text, Section 2.2 Clearances,

"Installation Clearances"

2.1 Boiler Position

The boiler must be installed in accordance with the rules

in force of the countries of destination.

The boiler is not suitable for outside installation.

Any electrical switch or boiler control using mains

electricity must be positioned so that it cannot be

touched by a person using the bath or shower.

The boiler must be mounted on a flat wall which is

sufficiently robust to take its weight, refer to Table 2.

If the boiler is to be fitted into a cupboard, compartment

or unusual location, special procedures are necessary.

Make sure that the cupboard or compartment air vents

are positioned to be clear of obstructions at all times,

refer to Section 3.7.

2.2 Clearances

The boiler should be positioned so that at least the

minimum operational and servicing clearances are

provided, see diagram 2.1.

Installation Clearances

For rear flue installation the dimension between the

boiler mounting wall and a permanent facing wall must

be a minimum of “X”, see diagram 3.1 and 3.3, plus

272mm.

For side flue installation the dimension between any

adjacent permanent walls must be a minimum of “Y”,

see diagram 3.2 and 3.3, plus 332mm.

For flue installations where internal clearances are not

practicable, then external installation will be necessary.

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3 F l u e a n d V e n t i l a t i o n

Diagram 3.3

Diagram 3.4

REAR FLUE 1,2 and 3 metre

SIDE FLUE 1,2 and 3 metre

Left or Right

Diagram 3.1

Diagram 3.2

WALL THICKNESS ‘X’: 75 to 590mm

DISTANCE ‘Y’: 80 to 528mm

“X”

REAR FLUE - STANDARD

“Y”

SIDE FLUE - STANDARD

Left or Right

4563

4566 4565 4564

1m FLUE DISTANCE ‘Y’: 80 to 828mm

2m FLUE DISTANCE ‘Y’: 80 to 1828mm

3m FLUE DISTANCE ‘Y’: 80 to 2828mm

“Y”

1m FLUE DISTANCE ‘X’: 75 to 890mm

2m FLUE DISTANCE ‘X’: 75 to 1890mm

3m FLUE DISTANCE ‘X’: 75 to 2890mm

Note. All flue assemblies are designed for internal

installation, given that there is sufficient clearances

opposite to the flue for the installation of the flue.

For a wall thickness up to 300mm, provided there is

sufficient space available, the flue can be fully installed

from the inside.

For a wall thickness over 300mm the external flue hole

will need to be made good from the outside.

If there is insufficient clearance the flue can be installed

from outside.

3.1 Flue

The flue must be installed in accordance with the rules in

force in the countries of destination.

3.2 Flue Position and Length

The air and flue ducting connect to the top of the boiler

using a flue elbow and can be positioned in one of three

directions:

rearward, left or right.

The standard flue will provide the range shown in

diagram 3.1 for a rear flue or diagram 3.2 for a side flue.

If a longer flue duct is required, do not extend the

ductings. A 1, 2 or 3metre flue system and elbow/

terminal kit must be used and can be supplied. This will

provide the range shown in diagram 3.3 for a rear flue,

diagram 3.4 for a side flue.

A Flue Bend Kit or Vertical Flue Kit can be supplied

with instructions.

3.3 Terminal Position

The minimum acceptable siting dimensions for the

terminal from obstructions, other terminals and

ventilation openings are shown in diagram 3.5.

The terminal must be exposed to the external air, the

position allowing free passage of air across it at all

times.

Car ports or similar extensions of a roof only, or a roof

and one wall, require special consideration with respect

to any openings, doors, vents or windows under the roof.

Care is required to protect the roof if made of plastic

sheeting. If the car port comprises of a roof and two or

more walls, seek advice from the local gas undertaking

before installing the boiler.

If the terminal is fitted within 600mm below plastic

guttering, an aluminium shield 1500mm long should be

fitted immediately beneath the guttering or eaves. If the

terminal is fitted within 450mm below painted eaves or a

painted gutter, an aluminium shield 750mm long should

be fitted immediately beneath the guttering or eaves.

“X”

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3 F l u e a n d V e n t i l a t i o n

MINIMUM SITING DIMENSIONS

FOR FANNED FLUE

TERMINALS POSITION

A DIRECTLY BELOW AN OPENABLE

WINDOW, AIR VENT, OR ANY OTHER

VENTILATION OPENING 300

B BELOW GUTTER, DRAIN/SOIL PIPE 75

C BELOW EAVES 200

D BELOW A BALCONY OR CAR PORT 200

E FROM VERTICAL DRAIN PIPES AND

SOIL PIPES 75

F FROM INTERNAL OR EXTERNAL

CORNERS 300

G ABOVE ADJACENT GROUND OR

BALCONY LEVEL 300

H FROM A SURFACE FACING THE

TERMINAL 600

I FACING TERMINALS 1200

J FROM OPENING (DOOR/WINDOW) IN

CAR PORT INTO DWELLING 1200

K VERTICAL FROM A TERMINAL 1500

L HORIZONTALLY FROM A TERMINAL 300

MINIMUM

SPACING

in mm

0103M

Under Car Port etc.

H,I

FGEA

B,C B,C

3.4 Terminal Guard

A terminal guard is required if persons could come into

contact with the terminal or the terminal could be subject

to damage.

If a terminal guard is required, it must be positioned to

provide a minimum of 50mm clearance from any part of

the terminal and be central over the terminal.

The guard should be similar to that shown in

diagram 3.5.

3.5 Timber Frame Buildings

If the boiler is to be installed in a timber frame building,

seek advice from the local gas undertaking or from

Hepworth Heating Ltd.

3.6 Room Ventilation

The boiler is room sealed, so when it is installed in a

room or space, a permanent air vent is not required.

3.7 Cupboard or Compartment Ventilation

If the boiler is to be fitted in a cupboard or compartment,

permanent high and low level air vents must be provided

The vents must have at least the effective areas as given

in Table 3.

High Vent 392cm2(60.8in2) 196cm2(30.4in2)

Low Vent 392cm2(60.8in2) 196cm2(30.4in2)

TABLE 3

Position Air from Air Direct

of Room or from

Air Vent Internal space Outside

Diagram 3.5

4783

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9220674B

4 H e a t i n g S y s t e m

Diagram 4.1

AVAILABLE PUMP HEAD SYSTEM HEATING LOAD

FLOW RATE

✽ACCEPTABLE

DIFFERENTIAL

RANGES

SYSTEM DIFFERENTIAL TEMPERATURE

✽

Btu/h x1000

FEET

11 15 20 25 30 35 Litres/Min

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 Gallons/Min

˚C ˚F

PUMP CURVE - SETTING 2

PUMP CURVE - SETTING 3

0194M

4.1 General Notes

The boiler is for use in sealed water systems only.

4.2 Safety Valve

The safety valve is an integral part of the boiler and it

cannot be adjusted.

4.3 Pressure Gauge

A pressure gauge is incorporated into the boiler to

indicate the system pressure.

4.4 Pump

The pump is integral with the boiler.

The remaining circulating pressure head available from

the pump is shown in diagram 4.1.

4.5 Expansion Vessel

The boiler has an integral expansion vessel with a

capacity of 8Litres (1.76gallons), with a charge pressure

of 0.75bar.

The maximum heating system water content using the

fitted expansion vessel ranges from 119Litres with a cold

fill pressure of 0.7bar, to 98Litres with a cold fill

pressure of 1.05bar. If, due to a high static head, the

cold fill pressure is higher, then the expansion vessel

pre-fill pressure must be increased, and the maximum

system volume decreased.

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220674B

4 H e a t i n g S y s t e m

Diagram 4.2

BOILER

3-LITRE

MAKE-UP

BOTTLE

(if required)

NON-RETURN

VALVE

AUTO AIR

VENT

DOMESTIC

WATER

HOT

COLD SUPPLY

FILLING

POINT

DRAIN

POINT

MIN. 22mm

DIA. BY-PASS

'B'

'A' BY-PASS

VALVE

FLOW CONTROL

VALVE

HEATING

CIRCUIT

RETURN

ADDITIONAL

EXPANSION

VESSEL

(if required)

2818

4.6 Flow Rate

A valve must be incorporated in the main flow or return

of the system, valve “A” shown in the flow in diagram

4.2. This valve must be lockable and positioned so that

inadvertent closure or unauthorised interference is not

possible. The design differential can be between 11ºC

(20ºF) and 17ºC (30ºF), dependent on the system

resistance and the available pump head. The pump

adjuster should normally be left at maximum (3) but in

some cases it is permissible to adjust the pump to a

lower setting (2). See diagram 4.1.

To use diagram 4.1 start with the required heating

system load.

In the example shown the maximum boiler output has

been chosen, 23.5kW (80,000Btu/h).

Draw a horizontal line from the required system

differential temperature axis to intersect the curve. In

the example 11ºC (19.8ºF) has been chosen,

shown . At the point of intersection draw a

vertical line to cross the pump curve. From this point

draw a further horizontal line to determine the available

pump head. In the example 2.4m (7ft9in) is available.

A greater pump head can be achieved by choosing a

higher system differential temperature, up to a maximum

of 3.8m (12ft 6in) at a system differential of 17ºC

(30.6ºF). The system must be designed such that the

available pump head is not exceeded.

If the heating system load is less than 14.7kW

(50,000Btu/h) then it is permissible to adjust the pump

setting to (2), shown . This results in an

available pump head of 2.1m (7ft). This is the maximum

that can be achieved with the pump at this setting.

4.7 Bypass

It is ESSENTIAL that a bypass of 22mm od minimum is

fitted to all installations. The bypass must have a

lockable valve, “B” in diagram 4.2, incorporated in a

position so that inadvertent closure is not possible.

The bypass MUST be fitted before any system control.

A radiator bypass is NOT recommended.

4.8 Make Up

Provision should be made for replacing water lost from

the system using a make up bottle mounted in a position

higher than the top point of the system, connected

through a non-return valve to the return side of the

heating circuit, see diagram 4.2. Alternatively,

provision for make up can be made by pre-pressurisation

of the circuit.

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