Glowworm Betacom 24 User manual

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Glow-worm, Nottingham Road, Belper, Derbyshire. DE56 1JT
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To be left with the user
Instructions for Use
High Efficiency Condensing Combination Boilers
Betacom

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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: [phone] Fax: [phone]

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Betacom 24
G.C. No. 47-019-04
Betacom 30
G.C. No. 47-019-05
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
Theseinstructionsareanintegralpartoftheboilerandmust,tocomplywiththecurrentissueoftheGasSafety
(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 accord-
ance 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.
Theadhesivesandsealantsusedinthisappliancearecuredandgive
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.
Connectionof thewhole electricalsystem ofthe 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.
Gas Category
Thisboilerisfor use onlyonG20naturalgasor G31 propanewiththe
appropriate conversion kit.
Testing and Certification
This boiler is certificated to the current issue of EN 483 for perform-
ance and safety.
Itisimportantthatnoalterationismadetotheboilerunlessapproved,
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
Thisboilermeetsthe requirementsofStatutoryInstrument,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
IMPORTANT NOTE
ALL electrical connections to the boiler
must be permanently fixed to a wall or a
sturdy support feature.

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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.
Once the controls are set the boiler operates automatically.
Compartment or Cupboard Installations
Ventilationis notrequiredfor compartment orcupboardinstallations.
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.
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".
Boiler Design
Diagram 1
*A removable compartment door can be placed a mini-
mum of 15mm in front of the appliance but there must be
a clearance of 600mm minimum from a fixed surface.
051 5
5050
200
006

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Boiler Safety Devices
Overheat Reset
The boiler is designed to lockout when an overheat happens. When
the boiler is locked out, the indicator lights steadly. To restart the
boiler, turn the left knob on position, wait one minute to cool down
the boiler, and then turn it on previous operating position (see
diagram 2).
If the boiler fails to resume normal operation and all external controls
are calling for heat, or if the boiler locks out again, then call your
Installation/Servicing company or Glow-worm service.
Frost Protection
With the gas and electric supplies ON and irrespective of any setting
of boiler’s control or room thermostat, the integral frost protection
devicewillignitetheburnerandoperatethepumpwhenthetempera-
ture of the boiler water falls below 5°C.
The burner will switch off when the temperature reaches 30°C.
NOTE: Any other exposed areas of the system should be protected
by a separate frost thermostat.
Condensate Drain Blockage
Asasafetyfeature theboilerwillstopworkingifthe condensatedrain
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.
Diagram 2
Safety Discharge Valve
Asafetydischargevalveanddischargepipeisfittedtotheboiler.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.

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Maintenance
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
partsthatyoucanbeassured conform tothesafetyandperformance
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 per-
son 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
wholesystem,includingthe boiler,shouldbedrainedtoavoidtherisk
of freezing.

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Boiler Operation
Isolating Valves
1. Check that all isolating valves and the Gas cock, on theboiler
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. The boiler does not operate without water.
3. CheckthattheelectricalsupplytotheboilerisONandthatalltaps
are closed and there is no demand from any external controls.
4. The gauge, see diagram 3, will indicate the system pressure,
which should read at least 0.5bar (recommended 1.0bar,
max 1.5bar), if the pressure is less, then call your Installation/
Servicing company or Glow-worm service.
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 the Central heating system (filling loop)
Open the Central Heating (flow and return) isolation valves as
indicated on Diagram 3 and install the filling loop on its connection.
Gentlyopenthe fillinglooptapsuntil thecorrectpressureis indicated
by the gauge (recommended 1.0bar; min. 0.5bar; max. 1.5bar).
If the loss of pressure problem persists, you MUST contact your
Installation / Servicing company or Glow-worm Service.
Diagram 3
Isolating Valves
ACentral heating - Return (open)
BCentral heating - Flow (open)
CCold water - Inlet (open)
DGas cock - (open)
EGauge (system pressure)
A B C D
E

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Central Heating knob (left one):
position - “Winter” to activate the boiler for heating and hot
water production; the scale determines the central heating
temperature (35 - 78°C);
position - “Summer” for hot water production only;
position - “Stand-by - Reset” to stand-by the boiler (frost
protection still active) and to reset eventual safety lock-out.
Hot Water knob (right one):
scale determines the hot water temperature (30 - 55°C).
Positions and are reserved to the Technician, so don’t
turn the knob on these position to avoid unpredictable behaviour
or malfuncions.
Boiler Operation - User Controls
Indicators
Boiler lockout indicator
OFF: no problems occoured.
ON: safety lockout. To reset the boiler, turn the left knob on
(reset) position, wait one minute to cool down the boiler, and then
turn it on previous operating position.
Flashing: 1) Hot Water knob on a position reserved to the
Technician; 2) Fault inside the boiler. Call your Installation/
Servicing company or Glow-worm service.
Burner indicator
ON: the flame is present on the burner.
Flashing: Error. Check the Hot Water knob for correct position
and reset the boiler by turning the left knob on (reset) position
for a few seconds.
Diagram 4

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Power indicator
OFF: no electrical power supply to the boiler.
Flashing: boiler electrically fed, but in stand-by ( ).
ON: boiler ready for operation upon demand.
Diagram 5
Toggles IN - Heating enabled
Toggles OUT - Heating disabled
Lever on “I” - Heating always on
regardless toggles setting
Lever on - Heating follows toggles setting
Lever on “0” - Heating always off
regardless toggles setting
Boiler Operation - User Controls
Timeclock
Turnthe timeclockclockwiseon thecurrenttime. Note:thetimeclock
stops when power supply fails: if so, check the time again.
Set the heating time by pushing in the toggles corresponding to the
hoursofthe daythatyouwantto heat.Note:heatingwillbe managed
also by external controls (e.g. room thermostat) if any.
Set the timeclock’s lever on to enable timed heating.
See Diagram 5 for details.

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Because of our constant endeavour for improvement, details may vary slightly from those shown in these instructions.
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