Saunier Duval Thema CONDENS F 18 E SB Operating manual

Instructions for use
Installation and servicing
Thema CONDENS F 18 E SB
Thema CONDENS F 24 E
Thema CONDENS F 30 E
CONDENSING BOILER + INSTANTANIOUS HOT WATER

1
Instructions for Use
Instructions for use
Index
1 General points .........................................................................2
2 Documents ..............................................................................2
3 Safety ......................................................................................2
3.1 Gas Leak or Fault ..............................................................................2
3.2 Safety regulations and recommendations ..........................................2
4 Guarantee / Responsibility ......................................................3
5 Appliance use ..........................................................................4
6 Servicing .................................................................................4
7 Recycling .................................................................................4
8 Appliance use: Thema Condens .............................................6
8.1 Control panel .....................................................................................6
8.2 LCD display .......................................................................................6
8.3 Operating and lighting ........................................................................6
8.4 Temperature adjustment ....................................................................7
8.5 Time setting ........................................................................................7
8.6 Timed central heating setting .............................................................7
8.7 «Boost» function ................................................................................7
9 Appliance use: Thema Condens SB .......................................8
9.1 Control panel .....................................................................................8
9.2 LCD display ........................................................................................8
9.3 Operating and lighting ........................................................................8
9.4 Heating temperature adjustment .......................................................9
10 Turn the boiler off ....................................................................9
11 Fault finding .............................................................................9
12 Frost protection .....................................................................10
12.1 Boiler frost protection .......................................................................10
12.2 Installation frost protection ...............................................................10
13 Maintenance/After Sales Service ..........................................10

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1 General points
The Thema CONDENS boiler is
an appliance that uses condensing
technology, which recovers heat present
in waste gas.
Thanks to this operating principle,
the boiler consumes less energy and
decreases NOx and CO2 emissions.
The Thema CONDENS boiler has a
double use (heating + instantanious hot
water).
This appliance of the room-sealed type
is equipped with a flue exhaust and air
intake for combustion products called
the flue system. This flue principle offers
the possibility to install the appliance in
any room and with no specific ventilation
requirements.
The installation and the commissioning
of the appliance has to be carried out by
a skilled professional who is responsible
for the compliance of the installation and
the commissioning according to current
regulations.
You also have to call on a skilled
professional for the maintenance and
repairing of the appliance as well as for
any gas adjustment.
Saunier Duval has specially designed
different accessories for your appliance
depending on your installation.
If you want a detailed list, please contact
your supplier or visit our website
www.saunier-duval.co.uk.
2 Documents
Please keep this manual as well as any
documents enclosed with it safe for
future reference.
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We accept no liability in case of damage
due to non-compliance of the instructions
of the present manual.
3 Safety
3.1 Gas Leak or Fault
Do not switch on nor switch off the light.
Do not activate the electrical switch.
Do not use the phone in this risky area.
Do not light up a flame (for example, a
lighter or a match).
Do not smoke.
Turn off the gas emergency control
valve immediatly.
Open all windows and doors to
ventilate the area.
Warn any person in the house.
Inform the Gas Utility company or a
skilled professional.
3.2 Safety regulations and
recommendations
Please observe the following safety
regulations and recommendations:
Do not use any aerosols, solvents,
abrasive cleaner, detergents with
chlorine, paint, glue, etc. near the
appliance. Under unfavourable
conditions, these substances can be
very corrosive even for the flue.
Do not use or store any explosive
material or easily flammable (for
example, petrol, paint, etc.) in the room
where the appliance is situated.
Never switch off the safety devices and
do not try to adjust these devices as
this could lead to a malfunction.
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3
Instructions for Use
Do not change:
- The appliance,
- The appliance environment,
- Water, air, gas and electric supply,
- Flue system.
Never carry out by yourself
maintenance or repair on the appliance.
In case of a water leakage, immediately
close the cold water inlet of the
appliance and call a skilled professional
to repair the leak.
Do not break sealed mechanisms.
Do not modify the technical conditions
close to the appliance, as these are
very important as far as the appliance
safety is concerned.
For example: the minimum clearances
of the external sides.
Warning!
A heating safety valve with a discharge
pipe is fitted to this appliance. The valve
must not be touched except by a skilled
professional.
If the valve discharges at any time,
switch the appliance off and isolate it
from the electrical supply.
Warning!
We advise you to be very careful when
adjusting hot water temperature: water
can be very hot when releasing from the
draw off tap.
4 Guarantee / Responsibility
Your appliance is guaranteed for a
period of 24 months from the date of
installation or 30 months from the date of
manufacture whichever is the shorter and
covers manufacturing defects only.
We, Saunier Duval, undertake to repair or
replace parts free of charge which
are recognised by us to be of faulty
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manufacture - if necessary after return to
our factory for examination - on condition
that:
The appliance was installed by a
qualifled gas installer in accordance
with installation instructions, and all the
relevant codes of practice, standards
and legislation in force.
The appliance has been used for
normal domestic purposes and in
accordance with the manufacturer’s
operating and maintenance
instructions.
The appliance has not been serviced,
maintained, repaired dismantled or
tampered with during the guarantee
period, by anyone other than a
competent person.
The repair or replacement of parts
during the guarantee period does not
have the effect of extending the period.
This guarantee does not cover:
Any defects or damage resulting
from incorrect or poor installation,
inadequate servicing, or maladjustment
of the gas or water used.
Any defects in the system to which the
appliance is connected.
Any deterioration or maladjustment
following changes in the nature or
pressure of the gas or the water used,
or a change in the characteristics of the
electrical supply voltage.
Notification of any fault should be made
to the appliance installer. No repairs
should be undertaken upon the appliance,
intending it to be covered by the product
guarantee without prior authorisation from
Saunier Duval.
IMPORTANT: The appliance serial number
must be quoted on all correspondence/
contact made with Saunier Duval.
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This guarantee is in addition to your
statutory and other legal rights, which
will not be excluded or diminished by the
return of the guarantee registration card.
5 Appliance use
Saunier Duval’s appliances are
manufactured according to the latest
technical evolutions and current safety
regulations.
This appliance is used to produce
hot water using gas. Any other use
is considered as inappropriate and is
forbidden.
The manufacturer shall not be responsible
for any damage caused by another
use. In that case the user shall be the
responsible.
6 Servicing
Clean the case of the appliance with
wet soapy cloth.
Do not use any abrasive cleaning
product as they could damage the
housing or plastic parts.
7 Recycling
The appliance comprises of many
recyclable parts. The packaging, the
appliance and the content of the package
shall not be thrown together with domestic
waste but disposed of according to the
current regulations.
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5
Instructions for Use

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8 Appliance use: Thema Condens
8.1 Control panel
2
4
5
6
7
1
3
prog
time
Legend
1 Operating mode indicators
2 LCD display
3 Operating mode selection
4 DHW temperature adjustment
5 Operating indicator
6 On/off switch
7 Heating temperature adjustment
8.2 LCD display
15
21 3
9
bar
1
2
3
4
Legend
1 Program period of heating on
2 Time display
3 Multimode display
4 Program period of heating off
8.3 Operating and lighting
Make sure that:
- The boiler is connected to the
electrical supply.
- The gas service cock is open.
Push switch (6) until the “I” symbol
appears. The display and operational
mode indicator light up.
Multimode display (3):
heating circuit pressure (bar)
or water temperature in the heating
circuit when heating is on (°C)
or a fault code
Operating indicator:
Yellow display: flame presence
Flashing red: fault
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Instructions for Use
Push “MODE” to modify the operating
mode of the boiler. The green LED
indicates the selected mode.
Domestic hot water +
Timed central heating
Central heating and
domestic hot water
Domestic hot water only
Appliance frost protection
time Time setting
prog Heating program setting
8.4 Temperature adjustment
8.4.1 Domestic hot water temperature
adjustment
Push + or – on the side to change
domestic hot water temperature.
The ECO symbol remains until 49°C.
8.4.2 Heating temperature adjustment
Push + or – on the side to change
water temperature in the heating circuit.
Observation: a quick push on +/- or /
side displays the temperature value
previously selected.
8.5 Time setting
Press on the MODE key until the green
indicator is in the position in front of the
“time” mode.
The hour section starts flashing.
Use the + or – keys on the “time” side
to set present hour, then press MODE
key to validate.
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The minute section starts flashing.
Use the + or – keys on the “time” side
to set minutes, then press MODE key to
validate.
8.6 Timed central heating setting
Press the MODE key until the green
indicator is in front of the “prog” mode.
Use the key on the “prog” side to
select on periods. A black square
appears on the display each time the
key is pressed.
Use the key on the “prog” side to
program off periods.
Each press on the and keys
corresponds to a 30 minute time period.
Press on the + and - keys on the “time”
side to move through the program
without modifying it.
Press on the MODE key to validate
your heating program.
8.7 «Boost» function
The “boost” function over rides the
program to advance the heating during
periods when the program is off. This
function remains active until the next new
period of heating is reached.
This function can only be activated in the
“Domestic hot water + timed
central heating” operating mode.
Press on the key on the “prog” side
for 5 seconds in order to activate the
“Boost” function.
The activated segments of the heating
program will then flash for 5 seconds.
Press on the key on the “prog” side
for 5 seconds to deactivate the “Boost”
function.
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9 Appliance use: Thema Condens SB
9.1 Control panel
4
3
5
2
6
1
Legend
1 Operating mode indicators
2 LCD display
3 Operating mode selection
4 Heating temperature adjustment
5 Operating indicator
6 On/off switch
9.2 LCD display
bar
COD. VAL.
1
2
Legend
1 Installer menu
2 Multimode display
9.3 Operating and lighting
Make sure that:
- The boiler is connected to the
electrical supply.
- The gas service cock is open.
Push switch (6) until the “I” symbol
appears. The display and operational
mode indicator light up.
Multimode display (2):
heating circuit pressure (bar)
or water temperature in the heating
circuit when heating is on (°C)
or a fault code.
Operating indicator:
Yellow display: flame presence
Flashing red: fault
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Instructions for Use
Push “MODE” to modify the operating
mode of the boiler. The green LED
indicates the selected mode.
Central heating
Appliance frost protection
9.4 Heating temperature adjustment
Push + or – to change water
temperature in the heating circuit.
Observation:
A quick push on +/- displays the
temperature value previously selected.
10 Turn the boiler off
Push switch (6) until the “O” symbol
appears.
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The appliance is no longer supplied
with electric power.
We advise you to turn off the appliance
gas supply if you leave home for a long
period.
11 Fault finding
When a fault occurs, the operating
indicator flashes red and the display
shows a fault code, symbolized by the
letter F followed by a number, for example
F1. As a user, you can act only in the
following cases. If other codes appear
than those listed in the following table, you
must contact a skilled professional.
Warning !
Never try to service or repair the appliance
by yourself and only start the appliance
once a skilled professional has repaired
the fault.
Fault code Cause Corrective action
The LCD display is
off.
Power failure Check the mains power supply is on and that
the appliance is switched on at the spur or
socket. The appliance starts automatically
once the power supply is on. If the fault
persists, please contact a skilled professional.
F1 or F4 Ignition fault Switch off the boiler
Wait 5 seconds and then start the boiler again.
If the fault continues, please contact a skilled
professional.
F2 Air flow failure The safety system shuts off the appliance.
Please contact a skilled professionnal
F5 Overheating fault Please contact a skilled professionnal
The operating and
pressure indicator
flashes
Insufficient water
pressure in the system
(<0.5 bar)
Open the 2 blue taps situated under the boiler
simultaneously until you obtain a pressure
between 1 and 2 bars on the indicator. If you
have to fill often this might be caused by a
leak in your appliance or system. In this case,
contact a skilled professional to check the
boiler and system.
Other defects Please contact a skilled professionnal

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12 Frost protection
12.1 Boiler frost protection
In case of frost risk, do as follows:
Make sure the boiler is supplied with
electrical power and gas.
Select the operating mode on the
control panel.
The frost protection system orders the
pump to start as soon as the temperature
in the heating circuit falls below 8°C. The
pump stops as soon as the temperature of
the water contained in the heating circuit
reaches 10°C.
If the temperature in the heating system
falls below 5°C, the burner ignites until it
reaches 35°C.
12.2 Installation frost protection
If you leave home for a few days, select
the minimum heating temperature on
the control panel of the boiler and just
decrease the setpoint temperature on
your room thermostat.
If you leave home for a long period, see
chapter “Draining of the appliance” in
the installation manual.
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13 Maintenance/After Sales Service
Please note that incorrect servicing can
affect the safety of the appliance and can
lead to injury.
To ensure the continued efficient and
safe operation of the appliance it is
recommended that it is checked and
serviced as necessary at regular intervals.
The frequency of servicing will depend
upon the particular installation conditions
and usage, refer to guarantee registration.
If this appliance is installed in a rented
property 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 Saunier Duval service.

Installation and servicing instructions strictly reserved for qualified gas installers
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Installation and servicing
Index
1 Comments on the instructions ...............................................13
2 Appliance description ............................................................13
2.1 Data label .........................................................................................13
2.2 Mandatory WARNING for EEC countries .........................................13
2.3 Block diagram .................................................................................14
3 Appliance location .................................................................15
4 Safety instructions and regulations .......................................15
4.1 Safety instructions ............................................................................15
4.2 Regulations ......................................................................................16
5 Appliance installation ............................................................17
5.1 Recommendations before mounting ................................................17
5.2 Thema CONDENS dimensions .......................................................18
5.3 Thema CONDENS SB dimensions .................................................18
5.4 List of delivered equipment ..............................................................18
5.5 Fixing to the wall ..............................................................................18
5.6 Gas and water connection ...............................................................19
5.7 Connection to the condensate trap ..................................................21
5.8 Flue connection ................................................................................22
5.9 Electrical connection ........................................................................24
5.10 Wiring diagram .................................................................................26
6 Commissioning ......................................................................28
7 Specific adjustments .............................................................28
7.1 Heating circuit adjustment ................................................................28
7.2 Access to the boilers technical data
(for professional and After Sales Service use only) .........................30
8 Draining of the appliance ......................................................32
8.1 Heating circuit ..................................................................................32
8.2 Domestic Hot Water circuit ..............................................................32

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9 Gas conversion .....................................................................32
9.1 Maximum power setting .................................................................32
9.2 Reactivation .....................................................................................33
10 Fault finding ...........................................................................34
11 Control / Commissioning .......................................................36
12 User information ....................................................................36
13 Spare parts ............................................................................36
14 Servicing ...............................................................................36
14.1 Casing ..............................................................................................36
14.2 Removable plate / Silencer ..............................................................37
14.3 Condensate trap ..............................................................................37
14.4 Hydraulic block .................................................................................38
14.5 Combustion block ............................................................................40
15 Remplacement of parts .........................................................42
15.1 Hydraulic block .................................................................................42
15.2 Combustion block ............................................................................44
15.3 Expansion vessel .............................................................................46
15.4 Ignition module / Ignition and control electrode / Sight glass ...........47
15.5 Control panel ....................................................................................48
16 Technical data .......................................................................50

Installation and servicing instructions strictly reserved for qualified gas installers
13
1 Comments on the instructions
Please give all of the instructions to
the user. The user shall keep them for
future reference.
We accept no liability in case of damage
due to the non-compliance of the
instruction manual.
2 Appliance description
2.1 Data label
The data label certifies the origin where
the product was manufactured and the
country for which it is intended.
Warning! The appliance shall only be used
with the gas types indicated on the data
label.
2.2 Mandatory WARNING for EEC
countries
This appliance is designed, approved and
inspected to meet the requirements of the
intended market. The data label indicates
where the product was manufactured and
the country for which it is intended.
This appliance meets the requirements
of Statutory Instrument, No. 3083 The
Appliance (Efficiency) Regulations,
and therefore is deemed to meet the
requirements of Directive 92/42/EEC
on the efficiency requirements for new
hot water appliances fired with liquid or
gaseous fuels.
Type test for purposes of Regulation 5
certified by: Notified body 0063. Product/
production certified by: Notified body
0086.
The CE mark on this appliance shows
compliance with:
Directive 90/396/EEC on the
approximation of the laws of the
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Member States relating to appliances
burning gaseous fuels.
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.
Directive 89/336/EEC on the
approximation of the Laws of
the Member States relating to
electromagnetic compatibility.
IMPORTANT. With regards to the
Manual Handling Operations, 1992
Regulations, the following lift operations
are recommended as the appliance weight
exceeds a one-man lift.
Clear the route before attempting the
lift.
Ensure safe lifting techniques are used
- keep back straight - bend using legs.
Keep load as close to body as possible.
Do not twist - reposition feet instead.
If two persons performing lift, ensure
co-ordinated movements during lift.
Always use assistance if required.
Manufacturer’s instructions must not be
taken as overriding statutory requirements.
Reference in these instructions to British
standards and statutory regulations/
requirements apply only to the United
Kingdom. For Ireland the current edition of
I.S.813 «Domestic Gas Installations» must
be used.
This appliance certificated to the
current issue of EN 483: 2000 for
performance and safety. It is important
that no alteration is made to the appliance,
without permission, in writing, from
Saunier Duval. Any alteration that is
not approved by Saunier Duval could
invalidate the warranty and could also
infringe the current issue of the Statutory
Requirements.
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2.3 Block diagram
29
Legend
1 Flue outlet
2 Main heat exchanger
3 Burner
4 Ignition and control electrode
5 Fan
6 Gas control valve
7 Condensate trap
8 Overheat safety thermostat
9 Heating expansion vessel
10 Heating return thermistor
11 Heating flow thermistor
12 Ignition module
13 Pump
14 Water pressure sensor
15 Domestic plate to plate heat
exchanger (*)
16 Three way valve
17 Drain cock
18 DHW flow sensor (*)
19 Filling system (*)
20 Filter on cold water inlet (*)
21 Heating isolating valve
22 Domestic cold water
isolating valve (*)
23 Heating isolating valve
24 Gas isolating valve
25 Heating safety valve
26 Thermal fuse
27 Silencer
28 Filling tap (*)
29 By-pass
A Heating return
B Cold water inlet (*)
C Heating flow
D Domestic hot water outlet (*)
E Gas
(*) Not required for SB models

Installation and servicing instructions strictly reserved for qualified gas installers
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3 Appliance location
This appliance is not suitable for
outdoor installation.
This appliance may be installed in any
room, although particular attention is
drawn to the installation of an appliance
in a room containing a bath or shower
where reference must be made to the
relevant requirements. In GB this is the
current I.E.E. WIRING REGULATIONS
and BUILDING REGULATIONS.
In IE reference should be made to the
current edition of I.S.813 «Domestic
Gas Installations» and the current ETCI
rules.
Make sure you keep an appropreate
distance between the sides of the
appliance to ensure total accessibility
for servicing.
The appliance must be mounted on a
flat wall, which is sufficiently robust to
take its weight.
The appliance is room sealed, so when
it is installed in a room or space, a
permanent air vent is not required.
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.
4 Safety instructions and
regulations
This appliance is tested and certificated
for safety and performance. It is, therefore,
important that no alteration is made to the
appliance, without permission, in writing,
from Saunier Duval.
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Any alteration not approved by Saunier
Duval, could invalidate the certification,
appliance warranty and may also
infringe the current issue of the statutory
requirements.
4.1 Safety instructions
If the gas pressure at the input of the
appliance is outside the range specified,
you shall not start the appliance. If the
cause of the problem cannot be found
nor solved, please contact the Gas Utility
company.
Warning! Incorrect installation can cause
electric shock or appliance damage.
When making the connections, locate
the sealing washers properly so as to
avoid any gas or water leakage.
Never use a wire brush or stiff-bristle
scrubbing brush to clean the heat
exchanger as this could damage the
appliance.
Under no circumstances must the User
interfere with or adjust sealed parts.
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.
In the event of the appliance overheating
the safety devices will cause a safety
shutdown. If this happens, call your
installation/servicing company.
Warning! This appliance must be
earthed. This appliance must be wired in
accordance with these instructions. Any
fault arising from incorrect wiring cannot
be put right under the terms of the Saunier
Duval guarantee.
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The following safety instructions must
be imperatively followed during the
maintenance and the replacement of
spare parts.
Stop the appliance (see chapter
“Deactivation” of the Instructions for
use).
Disconnect the appliance from the
mains power supply with the socket or
the double-pole switch (with a minimum
gap of 3mm for both poles).
Turn off the gas control valve.
Close the shut off valves located on the
connection sockets.
Drain the appliance when you want
to change the hydraulic parts of the
appliance.
Let the appliance cool down before
undertaking any maintenance
operation.
Protect all the electrical components
from water when you achieve any
operations.
Use only new O-rings and gaskets.
After having compleated work on gas
carrying components, check their
tightness.
When the replacement work is
compleated, perform an operation test
of the replaced parts and the appliance.
4.2 Regulations
When installing and commissioning the
appliance, the regulations below shall be
observed in their current version:
In your own interests and that of safety, it
is the Law that ALL gas appliances must
be installed by a competent person only,
in accordance with the current issue of the
following regulations.
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In GB the installation of the appliance
must be carried out by a competent
person 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 Fittings Regulations or
Water byelaws in Scotland.
The Health and Safety at Work Act,
Control of Substances Hazardous to
Health (COSHH).
The Current I.E.E. Wiring Regulations.
Where no specific 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 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.
In 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.
In IE: I.S.813, BS5546, BS 5449, BS
7074, BS 7593.
Where no British Standard exists,
materials and equipment should be fit
for their purpose and of suitable quality
and workmanship. The installation of
this appliance must be carried out by
a competent person in accordance
the rules in force in the countries of
destination. Manufacturer’s instructions
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Installation and servicing instructions strictly reserved for qualified gas installers
17
must not be taken as overriding statutory
requirements.
If the appliance is to be installed in a
timber frame building it should be fitted
in accordance with the Institute of Gas
Engineers document IGE/UP/7/1998. If
in doubt seek advice from the local gas
undertaking or Saunier Duval.
5 Appliance installation
All the dimensions in this chapter are
expressed in mm.
5.1 Recommendations before
mounting
5.1.1 Domestic hot water circuit design
The circuit should be designed to avoid
any unnecessary flow losses (decrease
the number of elbows).
The boiler will operate with a minimum
supply pressure but with a low flow.
Optimum performance will be achieved
with a pressure of 1 bar.
5.1.2 Heating circuit design
The Thema CONDENS boilers can
be used for any kind of installation: serial
or derivated double tube, single tube, hot
floor, etc...
Heating surfaces can be made up with
heaters, convectors or unit heaters.
Warning: We advise you to add an
inhibitor to the heating circuit water
(according to the manufacturer’s
recommendations) to avoid gas production
and oxide formation.
The pipework sections should be fixed by
using the following flow/pressure curve
(see chapter “Heating circuit adjustment”).
The system will be calculated according
to the flow corresponding to the power
that is really required without taking into
account the maximum power that the
boiler can supply. Nevertheless, we advise
you to have a flow big enough so that the
temperature difference between outgoing
and return is under or equal to 20°C. The
minimum flow rate is indicated in the
chapter “Technical Data” at the end of this
instruction manual.
The piping route should be designed in
such a way that it avoids any air locks
and make purging of gas from the system
easier. Bleeders should be placed at each
high point of the system as well as on any
radiators.
Total water volume accepted by the
heating circuit depends, amongst
other things, on the cold static load.
The expansion tank fitted in the boiler
is delivered set in plant (see chapter
“Technical Data” at the end of this
instruction manual). At commissioning, it is
possible to change this pressure in case of
a more larger static load. We advise you
to provide a drain valve at the lowest point
of the system.
If thermostatic radiator valves are used,
we advised you not to fit in a room where
a room thermostat is fitted.
If the boiler is not immediately installed,
protect all the pipe fittings so as to
avoid that any plaster element or paint
could impede the connection.
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5.1.3 Water treatment
In the case of an existing installation, it is
Essential that prior to installing the new
boiler the system is thoroughly flushed.
For optimum performance after
installation of a new system, the boiler and
its associated central heating system
should also be flushed.
Flushing should be carried out in
accordance with BS7593: 1992 using a
cleanser such as Sentinel X300 or X400,
Fernox Superfloc or Salamander corrosion
guard cleaner.
For long-term corrosion protection, after
flushing, an inhibitor suitable for stainless
steel heat exchangers should be used,
refer to the current issue of BS 5449 and
BS 7593 on the use of inhibitors in central
heating systems. Examples are Sentinel
X100 Fernox or Salamander corrosion
guard inhibitor.
5.2 Thema CONDENS dimensions
370
410
742
215
5.3 Thema CONDENS SB dimensions
370
410
742
215
5.4 List of delivered equipment
The boiler is delivered in one package:
One documentation pack:
- 1 user and installation manual
- 1 guarantee envelope
- 1 Wiring diagram
- 1 gas conversion label
One parts pack:
- 1 drain tube
- 2 filling loop extensions (*)
- 1 connection pack + wall template
- 1 gasket+ flow limiter pack
- 1 valve pack
(*) Not required for SB models
The flue is supplied separatly and will
depend upon the configuration of the
installation.
5.5 Fixing to the wall
Make sure the material you use fits
those of the appliance.
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Installation and servicing instructions strictly reserved for qualified gas installers
19
Chose the location of the appliance.
See chapter “Appliance location”.
The hanging bracket will be adapted to
the features of the bearing wall and will
have to take into account the weight of the
boiler filled with water.
Drill the holes for the fixing screws
in accordance to the diagram below
and to the size of the wall template
delivered with the appliance.
GAZ
GAS
38
37
748
811
=320=
Ø105
5
min.
70
70
102
Place the boiler above the hanging
bracket.
Slowly lower the boiler.
Set the seals on the different pipe
fittings.
Make connections to boiler, gas,
water and heating cocks with the tube
assemblies supplied in piping pack.
Do not forget to connect the 2
filling loop extensions on the 2
filling taps. (*)
(*) Not required for SB models
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5.6 Gas and water connection
Before undertaking any operation,
carefully clean the pipes with an
appropriate product in order to remove
impurities such as filings, welds,
different oils and greases that may be
present.
These foreign bodies may enter the
boiler and disrupt the operation.
Do not use any solvents that could
damage the heating circuit.
Take care when soldering pipes as the
heat could damage the seals and cause
leakage. Fit washers after joints have
cooled.
The pipe from the heating safety
discharge valve must not discharge above
an entrance, window or any type of public
access area.
Only use the genuine seals delivered
with the appliance.
Check that there is no leakage. Repair
if need be.
Take the short safety discharge tube,
union nut and seal, supplied loose in
the boiler fittings pack.
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.
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.
To ease future servicing it is advisable to
use a compression type fitting to extend
the safety discharge valve tube.
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