Glowworm 24cx Manuel utilisateur

www.glow-worm.co.uk

0020003656-02 11.05

Glow-worm, Nottingham Road, Belper, Derbyshire. DE56 1JT

www.glow-worm.co.uk

To be left with the user

Instructions for Use

High Efficiency Condensing Combination Boilers

Flexicom cx

www.glow-worm.co.uk

WARNING

GAS LEAK OR FAULT

Turn off the gas emergency control valve immediately. Eliminate all sources of ignition, i.e.smoking,

blowlamps, hot air guns etc. Do not operate electrical lights or switches either on or off.

Open all doors and windows, ventilate the area.

SHEETMETAL PARTS

This boiler contains metal parts (components) and care should be taken when handling and cleaning,

with particular regard to edges.

SEALED COMPONENTS

Under no circumstances must the User interfere with or adjust sealed parts.

Glow-worm service call: 01773 828100 Technical helpline: 01773 828300

General and Sales enquiries Tel: 01773 824639 Fax: 01773 820569

www.glow-worm.co.uk

24cx

30cx

G.C. No. 47-047-33

G.C. No. 47-047-34

12801

Position of name

badge (typical shown)

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Important Information 5

Boiler Design 6

Boiler Safety Devices 7

Maintenance 8

Boiler Operation 9

CONTENTS

These instructions are an integral part of the boiler and must, to comply with the current issue of the Gas Safety

(Installation and Use) Regulations, be left with the user.

Please read these instructions and follow them carefully for the safe and economical use of your boiler.

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Gas Safety (Installation and Use) Regulations

In your own interests and that of safety, it is the Law that ALL gas

appliances have been installed by a competent person in

accordance with the current issue of the regulations.

Control of Substances Hazardous to Health

Under Section 6 of The Health and Safety at Work Act 1974, we are

required to provide information on substances hazardous to health.

The adhesives and sealants used in this appliance are cured and give

no known hazard in this state.

Electrical Connection

The boiler MUST be earthed.

The boiler MUST be connected to a permanent 230V ac, 50Hz

supply.

Connection of the whole electrical system of the boiler, including any

heating controls, to the electrical supply must be through one common

isolator and must be fused to 3 Amps maximum.

The colours of three core flexible cable are, blue - neutral, brown - live,

green and yellow - earth.

All connections must be routed through the Installer Interface.

IMPORTANT NOTE

ALL electrical connections to the boiler

must be permanently fixed to a wall or a

sturdy support feature.

Gas Category

This boiler is for use only on G20 natural gas.

Testing and Certification

This boiler is certificated to the current issue of EN 483 for

performance and safety.

It is important that no alteration is made to the boiler unless

approved, in writing, by Glow-worm.

Any alteration not approved by Glow-worm, could invalidate the

certification, boiler warranty and may also infringe the current issue

of the statutory requirements.

CE Mark

This boiler meets the requirements of Statutory Instrument, No. 3083

of the Boiler (Efficiency) Regulations, and therefore is deemed to

meet the requirements of Directive 92/42/EEC on the efficiency

requirements for new hot water boilers fired with liquid or gaseous

fuels.

Type test for purposes of Regulation 5 certified by: Notified body

0087.

Product/production certified by: Notified body 0086.

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 harmonisation of the Laws of the

Member States relating to 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.

Important Information

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Boiler Design

Description

These boilers are designed for use as part of a sealed

water central heating system with fully pumped circulation.

The pump, expansion vessel and associated safety

devices are all fitted within the boiler. The hot water PRE

HEAT temperature facility will improve the boilers hot water

delivery response.

The daily pump and 3 way valve exercise programme combined

with the built-in frost protection will help to maintain and

protect the boiler.

Once the controls are set the boiler operates automatically.

Compartment or Cupboard Installations

Ventilation is not required for compartment or cupboard

installations.

Do not use the compartment or cupboard for storage.

The minimum clearances to fixtures are shown in diagram 1.

Pluming from flue terminal

Like all condensing boilers it will produce a plume of

condensation from the flue terminal in cool weather. This is

due to the high efficiency and hence low flue gas temperature

of the boiler. It is normal and not a fault indication.

Diagram 1

150 5

150

600

A removable compartment door can be placed a minimum of

5mm in front of the appliance but there must be a

clearance of 600mm minimum from a fixed surface

Electrical Supply Failure

The boiler will not work without an electrical supply and normal

operation of the boiler should resume when the electrical

supply is restored.

If the boiler does not resume normal operation, check the

external controls, it may be necessary, to "reset" the boiler,

refer to the following section, "Boiler Safety Devices".

12652

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Boiler Safety Devices

Overheat Reset

The boiler software is designed to recognise the potential for

an overheat lockout and will shutdown before this happens.

To restart the boiler, press the reset button, see diagram 2.

If the boiler fails to resume normal operation and all external

controls are calling for heat, then call your Installation/Servicing

company or Glow-worm service.

Frost Protection

With the gas and electric supplies ON and irrespective of

any room thermostat setting, the integral frost protection

device will operate the pump when the temperature of the

boiler water falls below 8OC.

A timer is used so that the temperature can be checked

periodically. After 10 minutes the pump will be stopped if the

temperature is higher than 10OC or has already reached

35OC.

The burner will only activate if the boiler temperature does

not reach 10OC after 30 minutes or at any time if the

temperature drops to 5OC.

The burner will switch off when the temperature reaches

35OC.

NOTE: Any other exposed areas of the system should be

protected by a separate frost thermostat.

Condensate Drain Blockage

As a safety feature the boiler will stop working if the condensate

drain becomes blocked. During freezing conditions this may

be due to the forming of ice in the condense drain external to

the house. Release an ice blockage by the use of warm cloths

on the pipe. The boiler should then restart. Contact your

Installation/Servicing company or Glow-worm service if the

fault persists.

Safety Discharge Valve

A safety discharge valve and discharge pipe is fitted to the

boiler. This valve MUST not be touched. If there is any

discharge from the pipe, switch off the boiler electrical supply,

then call your Installation/Servicing company or Glow-worm

service.

Diagram 2

RESET

DIGITAL DISPLAY

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Sealed Water Systems

The draining, refilling and pressurising MUST be carried out

by a competent person, contact your Installation/Servicing

company or Glow-worm Service.

Spare Parts

REMEMBER, When replacing a part on this boiler, use only

spare parts that you can be assured conform to the safety and

performance specification that we require. Do not use

reconditioned or copy parts that have not been clearly

authorised by Glow-worm.

If replacement parts are required contact Glow-worm’s own

service organisation using the telephone number on the

inside front cover of this booklet.

Please quote the name of the boiler, this infomation will be on

the name badge on the front case.

If in doubt seek advice from the local gas company or Glow-

worm’s own service organisation using the telephone number

on the inside front cover of this booklet.

Servicing

To ensure the continued efficient and safe operation of the

boiler it is recommended that it is checked and serviced at

regular intervals. The frequency of servicing will depend upon

the site conditions and usage, but in general, once a year

should be enough.

If this boiler is installed in a rented property in the UK there is

a duty of care imposed on the owner of the property by the

current issue of the Gas Safety (Installation and Use)

Regulations, Section 35.

Servicing/maintenance should be carried out by a competent

person in accordance with the rules in force in the countries

of destination.

To obtain service, please call your installer or Glow-worm’s

own service organisation using the telephone number on the

inside front cover of this booklet.

Cleaning

The boiler casing can be cleaned using a mild liquid detergent

with a damp cloth, then a dry cloth to polish.

Do not use any form of abrasive or solvent cleaner as you may

damage the paintwork.

Frost Protection

If the mains electricity and gas services are to be turned off for

any long periods during severe weather, it is recommended

that the whole system, including the boiler, should be drained

to avoid the risk of freezing.

Maintenance

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Boiler Operation

Diagram 3

Isolating Valves

1. Check that all isolating valves and the Gas cock,

on the boiler are open and that water flows from the

hot water tap.

2. If you are in any doubt about the boiler being filled

with water contact your installer or Glow-worm's own

service organisation using the telephone number on

the inside front cover of this booklet.

Do not operate the boiler without water.

3. Check that the electrical supply to the boiler is ON and

that all taps are closed and there is no demand from

any external controls.

4. The digital display, see diagram 2, will indicate the

system pressure, which should read at least 0.7bar

(recommended 1.0bar), if the pressure is less,

reconnect the filling loop and pressurise as described

in the following section, Filling Loop.

5. To operate or switch off the boiler follow the

instructions as described on the following pages.

6. Set any external controls as required.

Filling Loop

Turn the central Heating Flow isolation valve into the filling

position as indicated diagram 3 and gently opening both

taps until the correct pressure is indicated on the display.

If the loss of pressure problem persists, you MUST contact

your Installation / Servicing company or Glow-worm

Service.

12784

ISOLATING VALVES

ACentral Heating - Flow (closed)

BGas cock - (closed)

CCold Water - Inlet (closed)

DCentral Heating - Return (closed)

EFilling Loop Taps (inset shown open)

ABCD

Filling

position

12783

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Description

The boiler User controls consist of a "MODE" button, refer

to diagram 6, which, when pressed and held for 2

seconds, enters the Central Heating function indicated by a

flashing radiator symbol. Each press of the "MODE" button

will now cycle between Domestic Hot Water function

(flashing tap) and Central Heating (flashing radiator). After

10 seconds of inactivity the display will reset to indicate the

water pressure.

The "SELECTOR" buttons are used to turn OFF or set the

Central Heating (38 - 82OC) / Domestic Hot Water (40 -

60OC) temperature during the respective functions

indicated above.

To access the Pre Heat function hold in the "+" button for 5

seconds. The display will indicate (flashing) if it is ON/

OFF(OF). Pressing the "-" button will switch the Pre Heat

OFF and pressing the "+" button will switch it ON. After 10

seconds of inactivity the display will reset to indicate the

water pressure.

If a fault occurs, indicated by a flashing 'F' and code

number, press the reset button positioned below the digital

display.

If a fault persists, indicated by a flashing 'F' and code

number, contact your installer/service provider or Glow-

worm Service, using the telephone number on the inside

front cover of this booklet.

Boiler Operation - User Controls

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