Glow-worm Ultimate c User Manual
condens
Installation
and Servicing
ULTIMATE 30c
G.C. No. 47-044-48
ULTIMATE 35c
G.C. No. 47-044-49
TABLE OF CONTENTS
INTRODUCTION
1 Instructions guidance ................................................................................................................... 3
1.1 Product documentation .......................................................................................3
1.2 Explanation of symbols .......................................................................................3
1.3 Guarantee registration ........................................................................................3
2 Appliance description ................................................................................................................... 3
2.1 Safety devices ....................................................................................................3
2.2 Data label ...........................................................................................................3
2.3 Regulation and statutory requirements .................................................................4
2.4 Hydraulic schematic ...........................................................................................4
3 Safety instructions and regulations ............................................................................................... 5
3.1 Safety instructions ..............................................................................................5
3.2 Regulations .......................................................................................................5
4 Recycling ..................................................................................................................................... 6
4.1 Appliance ...........................................................................................................6
4.2 Packaging ..........................................................................................................6
TECHNICAL DATA
5 ULTIMATE c ................................................................................................................................... 7
INSTALLATION
6 Appliance location ....................................................................................................................... 8
6.1 Location .............................................................................................................8
6.2 Clearances .........................................................................................................8
6.3 Ventilation .........................................................................................................8
7 Appliance installation .................................................................................................................. 9
7.1 Scope of delivery ................................................................................................9
7.2 Recommendations before installing .....................................................................9
7.3 Dimensions ......................................................................................................10
7.4 Mounting .........................................................................................................11
8 Hydraulic connection .................................................................................................................. 12
8.1 Gas and water connections ................................................................................12
8.2 Safety Discharge Valve ......................................................................................13
8.3 Connection to the condensate trap .....................................................................13
9 Evacuation of combustion gas ..................................................................................................... 15
9.1 Regulation ........................................................................................................15
9.2 Flue confi guration description ...........................................................................16
10 Electrical connections ................................................................................................................. 17
10.1 Access to main board ........................................................................................17
10.2 Main board .......................................................................................................18
10.3 Electrical wiring ................................................................................................18
10.4 External accessories ..........................................................................................19
10.5 Testing the electrical connections ......................................................................19
10.6 Wiring diagram .................................................................................................20
- 1 -
TABLE OF CONTENTS
11 Commissioning ......................................................................................................................... 21
11.1 Reading the fi lling pressure ...............................................................................21
11.2 Switching on ....................................................................................................21
11.3 Filling the CH system (Central heating) ...............................................................21
11.4 Filling DHW Circuit ............................................................................................22
11.5 Filling the Condensate Trap ................................................................................22
11.6 Initial lighting ...................................................................................................22
11.7 Gas rates ..........................................................................................................23
11.8 Testing heating system ......................................................................................23
11.9 Testing domestic hot water system .....................................................................24
11.10 Completion .......................................................................................................24
12 Specifi ed Adjustment .................................................................................................................24
12.1 Heating circuit adjustment .................................................................................24
12.2 Installation settings ..........................................................................................25
12.3 After Sales Service settings ...............................................................................25
12.4 Status of the appliance ......................................................................................26
12.5 Test modes .......................................................................................................27
12.6 CO2 measurement .............................................................................................27
12.7 Re-check and restart .........................................................................................27
13 User information ........................................................................................................................ 27
MAINTENANCE
14 Trouble-shooting ........................................................................................................................ 28
14.1 Fault diagnosis .................................................................................................28
14.2 Fault memory ....................................................................................................29
14.3 Fault codes .......................................................................................................29
14.4 Functional fl ow diagram ....................................................................................31
15 Gas conversion adjustments ....................................................................................................... 32
15.1 Settings ...........................................................................................................32
15.2 Restart - re-check commissioning .......................................................................33
16 Draining ................................................................................................................................... 33
16.1 Heating circuit .................................................................................................33
16.2 Domestic Hot water circuit ................................................................................33
17 Servicing ................................................................................................................................... 33
17.1 Annual Maintenance .........................................................................................34
17.2 Casing removing ...............................................................................................34
17.3 Combustion check and setting the air/gas ratio valve ..........................................35
17.4 Servicing ..........................................................................................................36
17.5 Silencer ...........................................................................................................36
17.6 Expansion vessel ..............................................................................................37
17.7 Condensate trap ...............................................................................................37
17.8 Combustion block .............................................................................................38
17.9 Service completion ...........................................................................................39
18 Replacement of Parts .................................................................................................................. 39
18.1 General ............................................................................................................39
18.2 Boiler Access ....................................................................................................40
18.3 Viewing window ................................................................................................40
18.4 Hydraulic block .................................................................................................41
18.5 Combustion block .............................................................................................43
18.6 Condensate trap ...............................................................................................45
18.7 PCB ..................................................................................................................45
19 Spare parts ................................................................................................................................ 46
20 Manual Handling ........................................................................................................................ 48
21 Declaration of Conformity ........................................................................................................... 49
- 2 -
INTRODUCTION
INTRODUCTION
1 Instructions guidance
1.1 Product documentation
The instructions are an integral part of the appliance and must be
handed to the user on completion of the installation in order to
comply with the current regulation.
• Carefully read the manual, to understand all the information
to enable safe installation, use and servicing. No liability can
be accepted in the event of damage for not complying with the
guidance in this instruction manual.
These instructions consist of, Installation, Servicing, Fault Finding,
Replacement of Parts and Spares. The instructions are an integral
part of the appliance and must, to comply with the current issue of
the Gas Safety (Installation and Use) Regulations, be handed to the
user on completion of the installation.
1.2 Explanation of symbols
DANGER:
a
Risk of injuries.
2.1.2 Safety discharge valve
A safety discharge valve and discharge pipe are fi tted to the
boiler. This valve must not be touched.
- The heating safety valve opens when the pressure in the
heating circuit exceeds 3 bars.
• Should there be any discharge from the pipe, isolate the boiler
electrical supply and call your installer or Glow-worm’s own
service organisation.
2.1.3 Frost protection
The frost protection system operates the pump to start as soon
as the temperature in the heating circuit falls below 12°C. The
pump stops as soon as the temperature of the water contained
in the heating circuit reaches 15°C. If the temperature in the
heating system falls below 7°C, the burner ignites until it reaches
35°C. The frost-protection system is active when the appliance is
switched on. The system alone cannot ensure that the installation
is protected against frost. An separate frost thermostat is
necessary to control the temperature of the system.
DANGER:
a
2.1.4 Condensate drain blockage
Your domestic water circuit (hot or cold) is not protected
by the boiler.
DANGER:
e
b
i
Risk of electric shock.
ATTENTION:
Risk of damage to the appliance or to its surroundings.
IMPORTANT:
Important information.
1.3 Guarantee registration
Thank you for installing a new Glow-worm appliance in your home.
Glow-worm appliances are manufactured to the very
highest standard so we are pleased to off er our customers a
Comprehensive 5 years Guarantee.
We recommend you complete and return as soon as possible
your guarantee registration card. If your guarantee registration
card is missing you can obtain a copy or record your registration
by telephoning the Glow-worm Customer Service number 01773
828100.
2 Appliance description
2.1 Safety devices
2.1.1 Overheating safety
The appliance is designed to recognise the potential for an
overheat lockout and will shutdown before this happens.
During freezing conditions this may be due to the forming of ice
in the condense drain external to the house. In this case, a safety
device shuts down the appliance.
2.2 Data label
The data label certifi es the country where the appliance is
intended to be installed.
Data label location:
1
Key
1 Data label
DANGER:
a
• Refer to chapter "Technical Data" in the technical data section
The appliance shall only be connected to the gas type(s)
indicated on the data label.
to see the defi nition of the abbreviations used on the data
label.
0020167175_01 - 02/13 - Glow-worm
- 3 -
INTRODUCTION
2.3 Regulation and statutory requirements
2.3.1 CE Mark
This boiler meets the requirements of Statutory Instrument,
No. 3083 The Boiler (Effi ciency) Regulations, and therefore is
deemed to meet the requirements of Directive 92/42/EEC on the
effi ciency requirements for new hot water boilers fi red with liquid
or gaseous fuels.
Type test for purposes of Regulation 5 certifi ed by: Notifi ed body
1312.
Product/production certifi ed by: Notifi ed body 0086.
The CE mark indicates that the appliances described in this
manual are in compliance with the following directives:
- European directive n°2009-142 relative to gas appliances
- European directive n°2004-108 from the European Parliament
and Council relative to electromagnetic compatibility
- European directive n°2006-95 from the European Parliament
and Council relative to low voltage
- European directive n°92-42 relative to the yield of boilers
2.3.2 Local regulations
Benchmark places responsibilities on both manufacturers
and installers. The purpose is to ensure that customers are
provided with the correct equipment for their needs, that it is
installed, commissioned and serviced in accordance with the
manufacturer’s instructions by a competent person approved
at the time by the Health and Safety Executive and that it meets
the requirements of the appropriate Building Regulations. The
Benchmark Checklist can be used to demonstrate compliance
with Building Regulations and should be provided to the
customer for future reference.
Installers are required to carry out installation, commissioning
and servicing work in accordance with the Benchmark Code
of Practice which is available from the Heating and Hotwater
Industry Council who manage and promote the Scheme.
• Visit www.centralheating.co.uk for more information.
2.4 Hydraulic schematic
15
14
13
12
11
10
9
8
25
7
6
5
4
3
2
1
Key
1 Gas isolating valve
2 Heating fl ow isolating valve
3 Heating safety valve
4 Filter on cold water inlet
5 DHW fl ow sensor
6 Water pressure sensor
7 Domestic plate to plate heat exchanger
8 Three way valve
9 By-pass
10 Heating return thermistor
11 Condensate trap
12 Ignition and control electrode
13 Burner
14 Main heat exchanger
15 Thermal fuse
16 Flue outlet
17 Silencer
18 Heating expansion vessel
19 Fan
20 Gas control valve
21 Ignition module
22 Heating fl ow thermistor
23 Air vent
24 Pump
25 Manometer
26 Heating return isolating valve
27 Domestic cold water isolating valve
A Heating fl ow
B Pipe for heating safety valve
C Domestic hot water outlet
D Gas
E Cold water inlet
F Heating return
G Condensate drain
16
17
18
19
20
21
22
23
24
26
27
- 4 -
0020167175_01 - 02/13 - Glow-worm
INTRODUCTION
3 Safety instructions and regulations
3.1 Safety instructions
If the gas pressure at the input of the appliance is outside the
range specifi ed, the appliance must not be put into operation.
DANGER:
e
• Never disable security devices and do not try to adjust them.
With regards to the “Manual Handling Operations, 1992
Regulations”, the appliance exceeds the recommended weight for
a one person lift.
The handling of the boiler may involve lifting, pushing and
pulling, the use of a sack truck may be required.
• Be sure to consider the following handling techniques and
- Grip the appliance at its base
- Use safety clothing where appropriate, e.g. gloves, safety
• Ensure safe lifting techniques are used:
- Keep back straight.
- Avoid twisting at the waist.
- Avoid upper body/top heavy bending.
- Always grip using the palm of the hand.
- Use designated hand holds.
- Keep load as close to body as possible.
- Always use assistance if required.
• Under no circumstances must the user interfere with or adjust
• When assembling the connections, correctly position the seals
• This appliance contains metal parts (components) and care
The basic safety instructions must be followed before attempting
to maintain or replace spare parts:
• Stop the appliance.
• Electrically isolate the appliance from the power supply.
• Turn off the appliance gas isolation valve.
• Hydraulically isolate the appliance using the isolation valves if
• Should you need to replace hydraulic components, drain the
• Protect all the electrical components from water while working
Incorrect installation can cause electric shock or
appliance damage.
precautions:
footwear.
sealed parts.
to avoid any leakage of gas or water.
should be taken when handling and cleaning, with particular
regard to edges.
provided.
appliance.
on the appliance.
• Use only original spare parts.
• Use only new O-rings and gaskets.
• After having completed work on gas or water carrying
components, check for their tightness.
• When work on the appliance is completed, perform an
operational test and check for safety.
3.2 Regulations
3.2.1 Statutory requirements
IMPORTANT
Where no British Standards exists, materials and equipment
should be fi t for their purpose and of suitable quality and
workmanship.
The installation of this boiler must be carried out by a competent
person approved at the time by the Health and Safety Executive
and in accordance with the rules in force in the countries of
destination.
Manufacturer’s instructions must not be taken as overriding
statutory requirements.
Statutory Requirements
In GB, the installation of the boiler must comply with the
requirements of the current issue of BS6798 and be carried out
by a competent person approved at the time by the Health and
Safety Executive and as described in the following regulations:
- The manufacturer’s instructions supplied.
- The Gas Safety (Installation and Use) Regulations.
- The appropriate Buildings Regulations either The Building
Regulations, The Building Regulations (Scotland), The Building
Regulations (Northern Ireland).
- The Water Supply (water fi ttings) Regulations 1999 and water
byelaws 2000, Scotland.
- The Health and Safety at Work Act, Control of Substances
Hazardous to Health (COSHH).
- Any electrical work must conform to BS7671 and part P of the
building regulations where applicable.
Where no specifi c instructions are given, reference should be
made to the relevant British Standard Code of Practice.
In IE, the installation must be carried out by a competent person
approved at the time by the Health and Safety Executive and
installed in accordance with the current edition of I.S.813
“Domestic Gas Installations”, the current Building Regulations
and reference should be made to the current ETCI rules for
Electrical Installation.
GB: the following Codes of Practice apply: BS4814, BS6798,
BS5440 Part 1 and 2, BS5546 Part 1, BS5449, BS6891, BS6700,
BS7074 Part 1 and 2, BS7593, BS7671.
IE: I.S.813, BS5546, BS 5449, BS 7074, BS 7593.
NOTE: For further information, see the current issue of the
Building Regulations, approved document L1 ( in the UK) and the
following current issues of:
1) Central heating system specifi cation (CheSS) and
2) Controls for domestic central heating system and hot water.
BRECSU.
0020167175_01 - 02/13 - Glow-worm
- 5 -
INTRODUCTION
Gas Supply
The gas installation must be in accordance with the relevant
standards.
In GB, this is BS6891.
In IE, this is the current edition of I.S.813 “Domestic Gas
Installations”.
The supply from the governed meter must be of adequate size to
provide a steady inlet working pressure of 20mbar (8in wg) at the
boiler. On completion, test the gas installation for tightness using
the pressure drop method and suitable leak detection fl uid, purge
in accordance with the above standard.
Domestic Hot Water
All domestic hot water circuits, connections, fi ttings must be
in accordance with the relevant standards and water supply
regulations.
Heating System
In GB, it is necessary to comply with the Water Supply (Water
Fittings) Regulations 1999 (for Scotland, the Water Byelaws
2000, Scotland). To comply with the Water regulations your
attention is drawn to: The Water Regulations guide published by
the Water Regulations Advisory Service (WRAS) gives full details
of the requirements.
4 Recycling
IMPORTANT:
i
4.1 Appliance
Most of the appliance is made of recyclable materials.
• Take the appliance to an appropriate collection point.
i
4.2 Packaging
We recommend that you recycle the packaging of the appliance in
a responsible fashion.
The recycling of the packaging must be carried out by
the qualifi ed professional who installed the appliance.
This symbol indicates that this appliance must not
be disposed of with household waste, that it should
be selectively collected for energy recovery, reuse or
recycling.
IMPORTANT:
By complying with this directive, you will contribute to
the preservation of natural resources and the protection
of human health.
In IE, the requirements given in the current edition of I.S.813
“Domestic Gas Installations” and the current Building
Regulations must be followed.
Electrical Supply
The boiler MUST be earthed. All system components shall
be of an approved type and all wiring to current I.E.E. wiring
regulations. External wiring must be correctly earthed, polarised
and in accordance with the relevant standards.
In GB, this is BS 7671.
In IE, this is the current edition of ETCI rules.
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 3 Amp maximum.
3.2.2 Other 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.
• Sort the waste in order to separate those elements which can
be recycled (cardboard, plastics ...) and those which cannot be
recycled.
• Eliminate the waste in accordance with existing regulations.
Insulation Pads:
These can cause irritation to skin, eyes and the respiratory tract.
If you have a history of skin complaint you may be susceptible to
irritation. High dust levels are usual only if the material is broken.
Normal handling should not cause discomfort, but follow normal
good hygiene and wash your hands before eating, drinking or
going to the lavatory.
• If you do suff er irritation to the eyes or severe irritation to the
skin seek medical attention.
- 6 -
0020167175_01 - 02/13 - Glow-worm
TECHNICAL DATA
5 ULTIMATE c
Boiler, type C13, C33, C43
TECHNICAL DATA
Description Unit 30 35
Gas category ll
2H3P
ll
2H3P
SEDBUK rating 2009 % 88.8% 88.9%
Heating
Maximum heating input power kW 25 30.6
Minimum heating output power at
80/60°C (P min.)
Maximum heating output power at
80/60°C (P max.)
Minimum heating output power at
50/30°C (P min.)
Maximum heating output power at
50/30°C (P max.)
kW 5.9 8.5
kW 24.5 30
kW 6.5 9.2
kW 26.4 32.5
Minimum heating temperature °C 10 10
Maximum heating temperature °C 80 80
Minimum heating fl ow rate l/h 400 400
Content of heating expansion
vessel
Heating expansion vessel preset
pressure
Maximum heating system volume
(approx)
Heating safety valve preset
pressure (PMS)
l8 8
gallons 1.76 1.76
bar 0.75 0.75
psi 10.9 10.9
l 160 160
bar 3 3
lbf/in² 36/3 36/3
Domestic Hot Water
Minimum DHW output power (P
min.)
Maximum DHW output power (P
max.)
kW 6.1 8.7
kW 30.6 35.7
Maximum DHW temperature °C 60 60
Specifi c fl ow rate (∆T of 35 K) l/min 12.5 14.6
Minimum inlet water pressure
Maximum inlet water pressure
bar 0.3 0.3
psi 4.3 4.3
bar 10 10
psi 145 145
Combustion
Appliance NOx class 5 5
Electrical
Electrical supply V/Hz
230V /
50Hz
230V /
50Hz
Standby mode electrical power W 6 6
Operational mode electrical power
(Max)
W 151 151
Internal fuse rating on main PCB A 2 2
Index of electrical protection (EN
60529)
IPX4D IPX4D
Description Unit 30 35
Gas connection Ø O.D. mm 15 (copper) 15 (copper)
Heating flow and return connection
Ø O.D.
Domestic Hot Water connection
Ø O.D.
Condensate connection Ø I.D. mm
Safety valve discharge connection
Ø O.D.
Lift weight
mm 22 (copper) 22 (copper)
mm 15 (copper) 15 (copper)
Pushfi t
Plastic
Pushfi t
Plastic
mm 15 (copper) 15 (copper)
kg 37,7 38,3
lb 82 84.8
Total weight (installed) kg 41 43
Number of CE certifi cate
1312 BU
5335
1312 BV
5336
Description Unit 30 35
Natural Gas G 20 (15 °C, 1013.25 mbar)
Maximum DHW gas fl ow rate
Maximum heating gas fl ow rate
Minimum gas fl ow rate
at Qmax DHW + "tolerance
CO
2
case ON"
CO2 at Qmax DHW + "tolerance
case OFF"
CO2 at Qmin +
"tolerance case ON"
CO2 at Qmin +
"tolerance case OFF"
3
m
/h
m3/h
3
/h
m
3,24 3,77
2,65 3,24
0,65 0,92
% 9.2 ± 0.3% 9.2 ± 0.3%
% 9.0 ± 0.2% 9.0 ± 0.2%
% 8.9 ± 0.3% 8.9 ± 0.3%
% 8.7 ± 0.2% 8.7 ± 0.2%
Inlet pressure mbar 20 20
Propane Gas G 31 (15 °C, 1013.25 mbar)
Maximum DHW gas fl ow rate kg/h 2,38 2,77
Maximum heating gas fl ow rate kg/h 1,94 2,37
Minimum gas fl ow rate kg/h 0.47 0.67
at Qmax DHW + "tolerance
CO
2
case ON"
CO
at Qmax DHW + "tolerance
2
case OFF"
CO2 at Qmin +
"tolerance case ON"
CO2 at Qmin +
"tolerance case OFF"
%
%
% 9.8 ± 0.3% 9.8 ± 0.3%
% 9.6 ± 0.2% 9.6 ± 0.2%
10.3 ±
0.3%
10.1 ±
0.3%
10.3 ±
0.3%
10.1 ±
0.3%
Inlet pressure mbar 37 37
0020167175_01 - 02/13 - Glow-worm
- 7 -
INSTALLATION
INSTALLATION
IMPORTANT:
i
6 Appliance location
6.1 Location
All the drawings dimensions are shown in mm.
ØA + 5 min.
ØA
6.1.1 Instructions
Before choosing a site for the appliance, carefully read the safety
warnings and installation manual.
• Ensure that wall to which the appliance will be mounted on is
structurally safe in order to support the weight of the appliance.
• Ensure that the space that the appliance is to be installed
within allows the appliance to be installed and the clearances
maintained. This will ensure that the connections to the water,
gas and fl ue can be accessed and inspected (see chapter
Clearances).
• Explain these requirements to the appliance user.
• Do not install the appliance above another appliance that
could damage it (for example, above a cooker that might emit
steam or grease) or in a room, which has a lot of dust in the
atmosphere which is corrosive.
• The boiler must be fi tted inside the property and exposed pipe
work may need to be protected from frost by fi tting a frost
thermostat.
6.1.2 Regulations
Location
This boiler is not suitable for outdoor installation.
This boiler is suitable for installation in bathroom zones 2 and 3.
Timber Frame Buildings
If the boiler is to be installed in a timber frame building it should
be fi tted in accordance with the Institute of Gas Engineers
document IGE/UP/7/1998. If in doubt seek advice from local gas
undertaking or Glow-worm.
6.2 Clearances
• To allow periodic maintenance, ensure the distances indicated
on the diagram.
150
min.
0
min.
0
min.
600*
min.
200
min.
Key
* A removable compartment door can be placed a minimum 5 mm in
front of appliance. A clearance of 600 mm is required from a fi xed
surface.
The boiler and fl ue are suitable for installation onto and through
combustible materials provided that:
- Minimum 5mm clearance is maintained around the
circumference of the fl ue (air intake).
- The combustible surface and fi xings are suitable for
supporting the load.
- The minimum clearances from the boiler case are maintained.
6.3 Ventilation
6.3.1 Room Ventilation
The boiler is room sealed so a permanent air vent is not required.
6.3.2 Cupboard or Compartment Ventilation
Additional clearances may be benefi cial around the boiler for
installation and servicing.
For fl ue installations where external access is not practicable,
consideration should be given for the space required to insert the
fl ue from inside the property, which may necessitate clearance
larger than those specifi ed in diagram.
- 8 -
Due to the high effi ciency and low casing temperature of this
boiler, cupboard or compartment ventilation is not necessary.
• Existing ventilation should be investigated for its purpose
before removing.
0020167175_01 - 02/13 - Glow-worm
INSTALLATION
7 Appliance installation
7.1 Scope of delivery
The appliance is delivered in a single carton with a document
pack and fi ttings.
IMPORTANT:
i
• Please check the contents.
2.2
2.1
The fl ues package will be ordered according to the
confi guration of the installation.
2
2.3
2.4
2.5
3
4
4.1
7.2 Recommendations before installing
7.2.1 Domestic hot water circuit design
Water pressure
The minimum working pressure to obtain the maximum domestic
fl ow is 1,0 bar.
The maximum working pressure of the domestic hot water circuit
is 10 bar. If the cold water supply pressure exceeds this, then a
pressure-reducing valve must be fi tted in the supply to the boiler.
‘Hard’ water areas
The temperatures within the heat exchanger are limited by the
boiler control system to minimise scale formation within the hot
water pipework. However, in areas where the water is ‘hard’ (i.e.
more than 200 mg/L of calcium carbonate), it is recommended
that the hot water setting is reduced and that a scale reducer is
fi tted, refer to the manufacturer’s instructions or consult the local
water company for additional advice.
Domestic water fl ow rate
The domestic hot water fl ow has a restrictor, factory fi tted, which
reduces the fl ow to a maximum of:
- 30 : 10/min,
- 35 : 12/min,
1 4.6
Key
1 Boiler (x1)
2 Accessories bag (x1)
2.1 Connection bag (x1)
- Heating return valve (x1)
- Cold water inlet valve (x1)
- Heating fl ow valve (x1)
- Domestic hot water connection (x1)
- Gas isolation valve (x1)
2.2 Hanging bracket (x1)
2.3 Screws and wall plugs bag (x1)
2.4 Seals bag (x1)
- Flat seal ½" (x2)
- Flat seal ¾" (x5)
- Flat seal for cold water inlet ¾" (x4)
2.5 PRV pipe (x1)
3 Wall template (x1)
4 Documents pack (x1)
4.1 Installation and servicing manual (x1)
4.2 Flue book (x1)
4.3 Instructions for use (x1)
4.4 Guarantee envelope pack (x1)
4.5 Magnetic lighting instruction label (x1)
4.6 Gas conversion label (x1)
4.2
4.3
4.4
4.5
Central Heating water fl ow rate
If it is necessary to alter the fl ow rate, the system can be fi tted
with a lockable balancing valve in the main fl ow or return pipes.
- Heating circuit design
5
4
3
2
1
Key
1 Drain point
2 External bypass (if required)
3 Domestic hot water out
4 Domestic cold water supply in
5 Boiler
6 Additional expansion vessel (if required)
7 Heating return circuit
8 Heating fl ow circuit
9 Optional balancing valve
8
6
7
0020167175_01 - 02/13 - Glow-worm
- 9 -
INSTALLATION
General
This boiler is 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 fi tted
within the boiler.
Safety valve
The safety valve is an integral part of the boiler and it cannot
be adjusted. The pipe from the safety discharge valve must
discharge safely in accordance with standards.
Expansion vessel
The boiler has an integral expansion vessel with a capacity of 8
litres (1.76 gallons), with a charge pressure of 0.75bar.
IMPORTANT:
i
- In GB, Guidance on vessel sizing is also given in the current
- In IE, current edition of I.S.813 “Domestic Gas Installations”.
The boiler is fi tted with an automatic bypass.
• Ensure that under no circumstances does the fl ow rate drop
The heating system volume should be calculated to
ensure that the expansion vessel is suitable, it may be
necessary to add an additional vessel.
issue of BS5449 and BS7074 Part 1.
Bypass
below the fi gure specifi ed, refer to chapter "Technical data".
Drain points
Drain taps must be provided at all low points of the system, which
will allow the entire system to be drained.
Drain taps shall be to the current issue of BS2879.
Water treatment
Existing system- It is essential that prior to installing the new
boiler the system is thoroughly fl ushed.
New system- For optimum performance after installation, the
boiler and its associated central heating system should also be
fl ushed.
Flushing shall be carried out in accordance with BS 7593, a
chemical cleanser can be used either Sentinel X300, X400 or
Fernox F3 are suitable.
It is recommended to fl ush existing systems fi rst before fi tting the
new boiler.
• Ensure all cleanser is removed from the whole system before
adding an inhibitor.
For long-term corrosion protection after fl ushing, an inhibitor
suitable for stainless steel heat exchangers can be used. Either
Sentinel X100 or Fernox F1 inhibitor can be used.
The boiler is suitable for use on systems using softened water.
7.3 Dimensions
Filling the sealed system
IMPORTANT:
i
Suitable external fi lling systems are shown diagrammatically, see
diagram below.
3
2
1
Key
1 Heating fl ow circuit
2 Heating return circuit
3 Boiler
4 Double check valve assembly
5 Domestic cold water supply in
6 Temporary fi lling loop (remove immediately after fi lling)
7 Drain point
The boiler does not contain any fi lling loop, an external
one must be fi tted.
4
5
7 6
130
740
418
338
The system should be pressurised to 0.8bar, indicated on the
digital display with no heating demand.
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INSTALLATION
7.4 Mounting
• Make sure that the equipment used for implementing the
installation is compatible with that of the appliance.
• Determine the assembly location. See the "Appliance location"
chapter.
7.4.1 Fixing to the wall
3
2
1
Key
1 Wall template
2 Standard fl ue length horizontal
3 2.5° 44mm/metre inclined extended fl ue length
4 Wall plug
5 Hanging bracket
6 Screw
Flue hole cutting
• Mark the position of the fl ue centre.
130
90°
4
5
6
117
* 80/125 fl ue = Ø150mm
** 80/125 fl ue = Ø130mm
*** 80/125 fl ue = 156mm
• Take the wall template and place in the desired position
on the wall, giving due consideration to the required boiler
clearances, see chapter "Appliance location > Clearances", and
the fl ue you are fi tting.
892
• Remove the wall template, then drilling the fl ue hole.
IMPORTANT:
i
• Use a 105mm diameter core drill for external access fl ue
• Use a 125mm diameter core drill for internal access only fl ue
i
• If fi tting a side fl ue, extend the fl ue centre line into the corner
• If fi tting an extended side fl ue, determine the fl ue hole centre
Due to the varied site conditions the fi xings supplied may not be
suitable, please make sure that those used are.
The fl ue is designed with an internal fall of 44mm/metre
(2.5o), therefore the hole can be drilled horizontally.
installation (60/100 fl ue) (80/125 fl ue > Ø130mm).
installation (60/100 fl ue) (80/125 fl ue > Ø150mm).
IMPORTANT:
If fl ue extension pipes are to be used then a core drill
size of 125mm is required. This will allow the extension
pieces to slope at 44mm/metre (2.5o) towards the boiler.
then 130mm along the adjacent wall.
by extending the dashed inclined line on the template to the
side wall. This dashed line is drawn at 44mm/metre (2.5o)
rise from the boiler. Where this line reaches the side wall, a
horizontal line should be marked. The vertical centre line of
the fl ue should then be marked at 130mm from the back wall.
To allow for the fl ue passing through the wall at this angle
a 125mm hole should be drilled irrespective of internal or
external installation.
Hanging bracket fi xing
0020167175_01 - 02/13 - Glow-worm
• Drill the holes for the fi xing screws in accordance with the wall
template.
• Fix the hanging bracket on the wall.
- 11 -
INSTALLATION
7.4.2 Boiler hanging
DANGER:
a
Key
1 Boiler
2 Hanging bracket
• Lifting the boiler into position, lean the top of the boiler
• Lower the boiler slowly and engage onto the hanging bracket.
With regards to the Manual Handling Operations, 1992
Regulations, the following lift operation exceeds the
recommended weight for a one person lift, refer to
chapter "Manual Handling".
2
1
slightly to the wall and position just above the hanging
bracket.
8 Hydraulic connection
DANGER:
a
• Only use original seals supplied with the appliance.
• Check that there are no leaks. Repair if necessary.
• Check the cold water inlet fi lter is fi tted ( located in the
5
4
3
2
1
Key
1 Heating return isolating valve + sealing washer ¾"
2 Cold water inlet isolating valve + sealing washer ½"
3 Gas service isolating valve with pressure test point + sealing washer
4 Domestic hot water outlet isolating valve + sealing washer ½"
5 Heating fl ow isolating valve + sealing washer ¾"
6 Connection Ø O.D. 22 mm
7 Connection Ø O.D. 15 mm
8 Gas connection Ø O.D. 15 mm
Do not perform any 'hot work' directly under the
appliance, this may cause damage to the appliance
base. Heat may also damage the isolation valves.
Always pre-assemble pipes before fi tting them to the
boiler.
appliance cold water inlet pipe).
6
7
8
6
½"
8.1 Gas and water connections
The whole of the gas installation, including the meter, should be
inspected, tested for tightness and purged in accordance with the
current issue of BS6891 and in IE the current edition of I.S.813
“Domestic Gas Installations”.
IMPORTANT:
i
• Take care to clean the pipes before assembly removing any
• Do not use any solvent products, due to the risk of damaging
The appliance may contain a small amount of water,
place a water container beneath the boiler connections.
debris or burrs. Grease and oils may need to be removed they
are not possible to remove by cleansing and fl ushing. Foreign
bodies in the system may enter the appliance and interrupt its
operation.
the circuit.
• Use only the original gas cock GER/1 DN15, CE-0085 CL 0082.
• Use only the olive and fl at seal washer supplied with the gas
cock.
• Remove the protective caps from the boiler connections.
• Flush out the domestic hot water and the heating systems.
IMPORTANT:
i
Before turning on the cold mains supply to the boiler
turn off the cold water inlet to the boiler, lock the fi lling
loop in the closed position and close its fi lling taps.
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0020167175_01 - 02/13 - Glow-worm
8.2 Safety Discharge Valve
2
INSTALLATION
2
3
1
B
A
Key
1 Discharge pipe 15mm o.d.
2 Pressure relief valve PRV
3 Draining outlet
A PRV outlet - to outside
B Appliance drain
This must be extended, using not less than 15mm o.d. pipe,
to discharge, in a visible position, outside the building, facing
downwards, preferably over a drain.
To ease future servicing it is advisable to use a compression type
fi tting to extend the safety discharge valve tube.
The pipe must have a continuous fall and be routed to a position
so that any discharge of water, possibly boiling, or steam cannot
create any danger to persons, damage to property or external
electrical components and wiring.
8.3 Connection to the condensate trap
DANGER:
a
Condensate produced by the appliance is mildly acidic
(pH 3.5 - 5.0). Use protective gloves
1
Key
1 Condensate pipe
2 Condensate outlet pushfi t
• Make sure there is no protective plug fi tted.
• Connect the condensate pipe (1) to the condensate outlet (2).
IMPORTANT:
i
Wherever possible, the condensate drainage pipe should be
terminated into a suitable internal foul water discharge point
such as an internal soil and vent stack, internal kitchen or
bathroom waste pipe, washing machine waste pipe etc - ensuring
that condensate drains away from the boiler under gravity.
Consideration must always be given to reducing the possibility of
condensate pipes freezing and guidance must always be followed
in the current BS 6798:2009. It is recommended to insulate
external condensate pipes, any insulation must be vermin and
peck-proof.
If it is unavoidable to run and terminate the condensate internally
it is strongly advised to minimise the outside length of pipe and
be of a minimum external diameter of 32 mm. Condensate pipes
that pass through or from appliances installed in lofts, garages
and basements should be treated as external pipes. Follow
good installation practices and remove burrs from cut pipes
and observe the recommended jointing method of the pipes
and fi ttings. Note some installations may require the use of a
condensate pump on order to achieve internal discharge.
The pipe should have a fall of a least 2.5° 44mm/metre
away from the boiler.
ATTENTION:
b
i
• Refer to BS5546 and BS6798 for advice on disposal of boiler
0020167175_01 - 02/13 - Glow-worm
Condensate must only be discharged in accordance with
these instructions.
IMPORTANT:
The volume of condensates evacuated can reach about
15 litres per day for a detached house. This volume
is negligible compared to the volume of waste water
discharged by a house, because the condensates are
diluted in this water.
condensate.
To be connected
to the most appropriate
discharge configuration
CONDENSATE PUMP
- 13 -
INSTALLATION
INCREASE
PIPE SIZE
Washing machine
trap / waste
- 14 -
100 mm min.
75 mm min.
2.5
44
0020167175_01 - 02/13 - Glow-worm
INSTALLATION
9 Evacuation of combustion gas
9.1 Regulation
ATTENTION:
b
Diff erent fl ue outlet confi gurations can be carried out.
• Consult your supplier for more information about the other
• Standard fl ue terminal kits have an in-built fall back to the
Only fl ue accessories supplied by Glow-worm must be
used.
possibilities and associated accessories.
44 mm/m
boiler to drain the condensate. These can be fi tted level
between the appliance and the termination position. All other
extended fl ues must have a fall of at least 44mm/m
1 2
34
b
ATTENTION:
If the fl ue terminal is positioned near a light source
insects may enter the fl ue system. Where safe and
practical to do so advise the homeowner to check the
fl ue outlet and clear visible insects from the terminal
end.
The maximum length of the fl ue outlet is defi ned according to its
type (for example C13).
• Whatever the kind of fl ue system chosen, observe the
minimum distances indicated in the chart below to position
the fl ue terminals.
• To install the fl ue, refer to the separate fl ue instruction
supplied with your appliance.
• Explain these requirements to the user of the appliance.
DANGER:
a
b
In GB the minimum acceptable siting dimensions for the terminal
from obstructions, other terminals and ventilation openings are
shown in diagram overleaf.
In IE the minimum distances for fl ue terminal positioning must be
those detailed in I.S.813 “Domestic Gas Installations”.
The terminal must be exposed to the external air, allowing free
passage of air across it at all times.
If necessary, you must install a fl ue terminal guard.
ATTENTION:
Caution! The connection between the fl ue elbow and the
fl ue outlet must be sealed.
Position Position of the fl ue terminal mm
Horizontal fl ues
A
B above an opening, air brick, opening windows 300
C
D below gutter, drain/soil pipe 25
E below eaves 25
F below a balcony or car port 25
G from vertical drain pipes and soil pipes 25
H from internal/external corners 25
H* to a boundary alongside the terminal 300
I above adjacent ground or balcony level 300
J* from surface or a boundary facing the terminal 600
L
M vertical from a terminal 1500
N horizontally from a terminal 300
Vertical fl ues
P from another terminal 600
Q above roof level 300
R from adjacent opening window 1000
S from adjacent wall to fl ue 300
directly below an opening, air brick,
opening windows
horizontally to an opening, air brick, opening
windows
from opening (door/window) in car port
into dwelling
300
300
1200
Being a condensing boiler some pluming may occur from the fl ue
outlet. This should be taken into consideration when selecting
the position for the terminal.
Carports 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. A carport is defi ned
as a roof and one wall.
0020167175_01 - 02/13 - Glow-worm
(*) These dimensions comply with the building regulations,
but they may need to be increased to avoid wall staining and
nuisance from pluming depending on site conditions.
- 15 -
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