FireBird Enviromax Popular C12 User manual

Working towards a greener planet
ENVIROMAX
CONDENSING BOILERS
This manual must remain with the householder once installation is complete
TECHNICAL MANUAL
HEATING SOLUTIONS

1
CONTENTS
PAGE
1. STANDARDS & REGULATIONS ................................................................................................................................................................... 2
2. SAFETY .................................................................................................................................................................................................................................................. 3
3. HOUSEHOLDER INSTRUCTIONS
3.1 Operating Procedure - Popular, Kitchen, System, Heatpac,
Slimline Heatpac, Systempac & Slimline Systempac .................................................................................... 5
3.2 Digital Controller - Kitchen ..................................................................................................................................................................... 6
3.3 Operating Procedure - Combi, Slimline Combi & Combipac ............................................................ 7
3.4 Combi Timer .................................................................................................................................................................................................................. 8
3.5 Slimeline Combi Timer ................................................................................................................................................................................... 9
4. REGULATIONS & GUIDELINES
4.1 Installation Guidelines .................................................................................................................................................................................... 10
4.2 Positioning the Boiler ................................................................................................................................................................................... 11
4.3 Condensate Disposal ....................................................................................................................................................................................... 12
4.4 Flue Regulations ...................................................................................................................................................................................................... 14
4.5 Flue Systems .................................................................................................................................................................................................................. 18
4.6 Oil Supply & Magnetic Filtration .................................................................................................................................................... 21
4.7 Domestic Heating & Hot Water ....................................................................................................................................................... 23
5. TECHNICAL DETAILS & DIMENSIONS
5.1 Popular ..................................................................................................................................................................................................................................... 27
5.2 Kitchen ....................................................................................................................................................................................................................................... 28
5.3 Heatpac, Systempac, Combipac , Slimline Heatpac & Slimline Systempac ................... 30
5.4 Combi & Slimline Combi ................................................................................................................................................................................ 32
5.5 System ......................................................................................................................................................................................................................................... 34
6. PARTS
6.1 Popular ...................................................................................................................................................................................................................................... 35
6.2 Kitchen ....................................................................................................................................................................................................................................... 36
6.3 Heatpac & Systempac ....................................................................................................................................................................................... 38
6.4 Combipac ............................................................................................................................................................................................................................. 40
6.5 Slimline Heatpac & Slimline Systempac .............................................................................................................................. 42
6.6 Combi .......................................................................................................................................................................................................................................... 44
6.7 Slimline Combi .............................................................................................................................................................................................................. 46
6.8 System ...................................................................................................................................................................................................................................... 48
7. WIRING
7.1 Popular ...................................................................................................................................................................................................................................... 50
7.2 Kitchen ....................................................................................................................................................................................................................................... 51
7.3 Heatpac & Systempac ........................................................................................................................................................................................ 53
7.4 Combi, Slimline Combi & Combipac ........................................................................................................................................... 54
7.5 Combi & Slimline Combi - PCB Panel ........................................................................................................................................ 56
7.6 System ....................................................................................................................................................................................................................................... 57
8. BURNER .............................................................................................................................................................................................................................................. 58
9. COMMISSIONING .............................................................................................................................................................................................................. 60
10. SERVICING .................................................................................................................................................................................................................................... 62
11. TERMS & CONDITIONS OF WARRANTY ....................................................................................................................................... 63
FOREWORD
We would like to thank you for purchasing a high efficiency Firebird condensing oil boiler. This instruction
manual is produced for the reference and guidance of qualified installation engineers, preferably OFTEC
(Oil Firing Technical Association) registered. EU legislation governs the manufacture, operation and efficiency of
all domestic central heating oil boilers. Our boilers and burners are supplied as matched units.

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2
STANDARDS & REGULATIONS
In addition, the work must comply with relevant
building regulations for oil fired boilers and oil
storage tanks.
OFTEC also publish excellent guides including: Safe
Working Practices for Oil Fired Technicians - OFTEC
Technical Book Three (Installation Requirements for Oil
Fired Boilers and Oil Storage Tanks) - OFTEC Technical
Book Four (Domestic Heating Systems) and it is
recommended that these should adhere to Domestic
Heating Design Guide.
COPIES OF BRITISH STANDARDS MAY
BE PURCHASED DIRECT FROM:
BSI (Customer Services),
389 Chiswick High Rd., London W4 4AL.
Tel.: [phone] Fax: [phone]
International and EC Standards are
also available from above.
OFTEC PUBLICATIONS ARE AVAILABLE FROM:
OFTEC, Oil Firing Technical Association,
Foxwood House, Dobbs Lane,
Kesgrave, Ipswich, IP5 2QQ.
www.oftec.org
BOILER INSTALLATION:
Other than special considerations for condensate
removal and plume dispersal, the installation of oil
firing condensing boilers is the same as for
non-condensing boilers.
BS5410 - Part 1: 2014 gives the requirements for
domestic boiler and oil storage installations.
If an appliance is to be installed inside a building or
within a restricted area externally, a carbon monoxide
detector alarm conforming to EN 50291 should be
installed in accordance with the manufacturer's
instructions.
For condensing boilers, the same requirements apply
for installation with regard to cleaning and flushing
and providing inhibitors, as are followed for any
other boiler. Manufacturer’s instructions must always
be followed together with the requirements of
EN 12828: 2012 + A1: 2014 & BS EN 12831: 2003 and
the statutory requirements of the Building
Regulations.
To ensure the highest standards of installation & safety,
it is important that the boiler be installed in compliance
with the following regulations where applicable. It is
the responsibility of the installer and everyone
concerned with any aspect of installation, to ensure
that all applicable standards and regulations are fully
adhered to.
The following is a list of some of the applicable standards
and regulations. Please always check for the most up to
date version.
Part L & J England & Wales
Part F Section III Scotland -
Conservation of Fuel Power
Part L Northern Ireland -
Conservation of Fuel Power
Part J Republic of Ireland -
Conservation of Fuel Power
BS 5410 Part 1: 2014 - Code of Practice for Oil
Firing - Installation up to 44kW
Part 2: 2013 - Code of Practice for Oil
Firing - Installation for 44kW and
greater
BS 799 Part 5: 2010 - Specification for Oil
Storage Tanks
BS 4876: 1984 Performance Requirements for
Oil Burning Appliances
BS EN 12828: 2012 (UK National Annex) - Heating Systems
+ A1: 2014. in Buildings - Design for Water Based
Heating Systems
BS 7074 Part 1: 1989 - Application, Selection and
Installation of Expansion Vessels and
Ancillary Equipment for Sealed Water
Systems
BS 7593: 2006 Code of Practice for Treatment of
Water in Heating Systems
BS 715: 1989 Metal Flue Pipes, Fittings,Terminals
and Accessories
BS 1181: 1989 Clay Flue Linings and Flue Terminals
BS 4543 Part 3: 1990 - Factory made Insulated
Chimneys for Oil Fired Appliances
BS 8558 Design, Installation,Testing and
Maintenance of Services
Supplying Water
BS 7671 Current IEE Regulations -
Requirements for Electrical Regulations
Local Water Undertaking Bylaws -
Water Supply (Water Fittings)
Regulations 1999 - The Control of
Pollution (Oil) Regulations

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3
SAFETY
HEALTH & SAFETY INFORMATION
The installer should be aware of his/her responsibilities
under the current, local Health and Safety at Work Act.The
interests of safety are best served if the boiler is installed
and commissioned by a competent, qualified engineer,
OFTEC trained and registered. If not, a Building Notice is
required in England & Wales.Other parts of the British Isles,
including the Channel Islands, also require notification to
building control.
Under the Consumer Protection Act 1987 (UK), section 6 of
the Health and Safety Act 1974 (UK) and the Safety, Health
and Welfare at Work Act 2005 (ROI), we are required to
provide information on substances hazardous to health.
INSULATION AND SEALS
Ceramic Fibre, Alumino - Silicone Fibre material are used
for boards, ropes and gaskets. Known hazards are that
people may suffer reddening and itching of the skin. Fibre
entering the eye will cause foreign body irritation. It may
also cause irritation to the respiratory tract.
Precautions should be taken by people with a history of
skin complaints or who may be particularly susceptible to
irritation. High dust levels are only likely to arise following
harsh abrasion. Suitable personal protective equipment
should be worn where appropriate.
Generally, normal handling and use will not give
discomfort. Follow good hygiene practices, wash hands
before consuming food, drink or using the toilet.
First Aid - medical attention should be sought following
eye contact or prolonged reddening of the skin.
The small quantities of adhesives and sealants used in the
product are cured. They present no known hazards when
used in the manner for which they are intended.
THIS PRODUCT HAS BEEN DESIGNED
TO THE FOLLOWING STANDARDS:
This equipment complies with the Low Voltage Directive
2006/95/EC & the EMC Directive 2004/108/EC.
EMC - conformity was demonstrated by meeting the
following standards:
EN 55014-1: 2006/A2: 2011: Electromagnetic Compatibility
- Requirements for Household Appliances, Electric Tools
and Similar Apparatus - Part 1: Emission
EN 55014-2: 1997/A2: 2008: Electromagnetic Compatibility
- Requirements for Household Appliances, Electric Tools
and Similar Apparatus - Part 2: Immunity - Product Family
Standard
EN 61000-3-2: 2009: Electromagnetic Compatibility (EMC)
Part 3-2: Limits - Limits for Harmonic Current Emissions
(equipment input current <16 A per phase)
EN 61000-3-3: 2008: Electromagnetic Compatibility (EMC)
Part 3-3: Limits - Limitation of Voltage Changes, Voltage
Fluctuations and Flicker in Public Low-voltage Supply
Systems (equipment with rated current <16 A per phase
and not subject to conditional connection)
Safety - conformity was demonstrated by meeting the
following standards:
EN60335-1: 2012: Household and Similar Electrical
Appliances - Safety - Part 1: General Requirements
EN60335-2-102: 2006/A1: 2010: Household and Similar
Electrical Appliances - Safety - Part 2-102: Particular
Requirements for Gas, Oil and Solid-fuel Burning
Appliances having Electrical Connections

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4
SAFETY
FUEL SPILLAGE
SAFETY
FIRST AID
1. Switch off all electrical and other ignition sources.
2. Remove all contaminated clothing to safeguard
against fire risk and skin damage. Wash affected skin
thoroughly with soap and water and remove clothing
to a safe well ventilated area and allow to air before
cleaning.
3. Contain and smother the spill using sand or other
suitable oil absorbent media or non-combustible
material.
4. Do not allow fuel to escape into drains or water cours-
es. If this happens, contact the relevant authorities in
your area (Ireland). Contact The Environment Agency
on 0800 807060 (UK).
5. Consult local authority about disposal of contaminated
soil.
Safe use of Kerosene.
These fuels give off a flammable vapour when heated
moderately.Vapour ignites easily, burns intensely and may
cause explosion. The vapour can follow along at ground
level for considerable distances from open containers and
spillages collecting as an explosive mixture in drains, cel-
lars, etc.
Fuels remove natural oils and fats from the skin and this
may cause irritation and cracking of skin. Barrier cream
containing lanolin is highly recommended together with
good personal hygiene and where necessary appropriate
personal protection equipment (P.P.E.).
Gas oil may also cause irreversible damage to health on
prolonged or repeated skin contact.
Always store fuels in a properly constructed and labelled
tank. Always handle fuel in open air or well ventilated
space away from sources of ignition and refrain from
smoking.
Always drain fuel using a proper fuel retriever, funnel or
mechanical siphon. Never apply heat to a fuel tank,
container or pipework. Never siphon fuel through tube by
mouth. If accidentally swallowed, contact a doctor
immediately and do NOT induce vomiting. Avoid inhaling
fuel vapour as this can cause light headedness and
seriously impair judgement.
If fuel is accidentally swallowed:
* Seek medical attention immediately.
Do NOTinduce vomiting.
If fuel is splashed into eyes:
* Wash out with running water for at least ten
minutes and seek medical attention.

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5
3.1 OPERATING PROCEDURE - HOUSEHOLDER INSTRUCTIONS
POPULAR, KITCHEN, SYSTEM, HEATPAC,
SLIMLINE HEATPAC, SYSTEMPAC
& SLIMLINE SYSTEMPAC
Error lamp
Burner
lockout
re-set button
Burner
plug
LCD display
Mode
Led power
light
Temperature
control
Re-set button
Temperature control
High limit re-set button Burner
plug
Burner
lockout
re-set button
To start the boiler:
Turn on fuel supply.
Switch on power supply to boiler.
Turn timer control (if fitted) to“ON”.
Set the boiler thermostat to the required temperature.
The boiler thermostat controls the boiler operation by
automatically maintaining the required boiler water
temperature output. Safe operation is also maintained
by the burner control system which provides the
required ignition and shut off sequence. If the optional
timer control is fitted, this will automatically switch the
boiler off and on when heat is required.
To turn off the boiler:
 Turn the timer control (if fitted) to“OFF”.
 Turn off the mains electrical supply to the boiler.
Lights not included in Popular
and Heatpac models.
Set at Max 80˚C Set at Mid 70˚C Set at Min 60˚C
Burner Lockout
(Please note that the following applies to the
models on this page as well as those on the next pages).
The boiler is factory fitted with a burner control box
lockout safety feature which operates automatically if a
fault occurs in the burner operation. Should this occur, the
light on the front of the burner will illuminate.
This could be caused by:
A. An interruption in the fuel supply
(eg. empty oil supply tank).
B. An electrical supply fault.
C. A fault with the burner or its safety control system.
D. The failure of a component (eg. photo cell).
E. Worn or dirty oil nozzle.
Before attempting to restart the boiler, the front panel and
the burner cover should be removed and a visual check
made for any obvious problems such as oil leaks, loose
connections etc.
ENSURE OIL TANK CONTAINS
KEROSENE 28 SECOND CLASS C FUEL
To restart the boiler:
1. Press reset button.
2. Ensure that the boiler thermostat, time switch
(if fitted) and any external controls connected to the
boiler are set to call for heat.
3. Check that the oil supply valves are open and that
there is sufficient oil in the tank.
4. Check that the burner lockout light is unlit and with
the mains on,the boiler will be ready to commence its
start sequence.
Thermostat Control

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3.2 KITCHEN DIGITAL CONTROLLER - HOUSEHOLDER INSTRUCTIONS

3
7
3.3 OPERATING PROCEDURE - HOUSEHOLDER INSTRUCTIONS
Operation
lights
Pressure
gauge
Temperature
control
Twin timer
positions
(optional extra) Pressure
gauge
Twin timer
positions
(optional extra)
Operation
lights
Temperature
control
To start the boiler :
Turn on fuel supply.
Switch on power supply to boiler.
Set the boiler thermostat to the required
temperature (for central heating
max. 80˚C min. 60˚C ).
Set timers (if fitted). See page 8 & 9.
The central heating thermostat controls the
boiler when in central heating mode only,
thus maintaining the required boiler water
temperature output for central heating.
Domestic hot water temperature is
controlled by a separate non adjustable
thermostat, plus a thermostatic mixing
valve. See page 10.
Safe operation is also maintained by the burner
control system, which provides the required ignition
and shut off sequence.
If the optional timer controls are fitted, these will
automatically switch the boiler off and on, as and
when cental heating or domestic hot water is required.
To turn off the boiler:
Turn both timer switches to“OFF” (if fitted).
Turn off the mains electrical supply to the boiler.
Unplug the 7 pin plug from control panel.
WHEN SERVICING, ALWAYS SWITCH
OFF THE MAINS SUPPLY TO THE BOILER
COMBI, SLIMLINE COMBI & COMBIPAC
THERMOSTAT CONTROL
MAX. MIN. MID.
DHW ON. on indicator light. CH. on indicator light.
Burner lock out indicator light.
High limit thermostat indicator light.
Max. = 80˚C.
Min. = 60˚C.
Knock out for Firebird timer kit.

13
14
11
10
16
15
14
13
12
9
5
8
7
6
6
8
9
7
5
3
4
24
22
1
18
19
20
20
17
18
16
17
15
19
10
11
12
22
22
21
4
3
22
21
24
1
23
23
Central heating timer
Power on
'fixed'
Manual switch
Power on
to timer
Power
off
13
14
11
10
16
15
14
13
12
9
5
8
7
6
6
8
9
7
5
3
4
24
22
1
18
19
20
20
17
18
16
17
15
19
10
11
12
22
22
21
4
3
22
21
24
1
23
23
Domestic hot water timer
Optional Twin Timer Kit
3
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3.4 COMBI TIMER - HOUSEHOLDER INSTRUCTIONS
Timer switch
position A
constant
Timer switch
position B
timed
Timer switch
position C
off
Programming Guide
Setting Up
The outer dial should be set to
the current time. Rotate the dial
slowly in a clockwise direction,
until the correct hour is aligned
with the arrow head printed on
the dial. Note that the outer dial
is printed with the 24 hour clock:
8:00 a.m. = 8 on the dial.
8:00 p.m. = 20 on the dial.
Do not attempt to rotate the dial
in an anti-clockwise direction.
Central Heating Control
The control panel is designed for simplicity of use and is
equipped with an adjustable thermostat dial, optional
time controls and a limit thermostat reset button as
shown above. It also has a built in system pressure
gauge which is connected to the boiler and heating
system water at the safety valve.
When replacing, make sure that each thermostat
pocket receives the correct phial by marking and
noting carefully each phial and its correct pocket.
Manual Switch
The manual switch has three settings: Fixed On / Fixed
Off / Auto control, allowing manual control of the
switched output without disrupting the timed (tappet)
settings.
The FM1 Timer is a single channel 24 hour timer. It can
be used to control the central heating or hot water cir-
cuits. If it is a requirement to have the hot water circuit
in a combination boiler time controlled where this boil-
er is installed,then a second timer can be connected via
the seven pin mains in plug on this control panel. Refer
to the combi wiring instructions pages 54 & 55.
The slide switch can be set at any of the three settings
and will remain in this position until manually changed.
When the manual switch is set on “Auto” the timer will
come on as per the tappet settings.
Programming Switching Times
Set all tappets between the “on” and “off” times
required, to the outer edge of the dial (see figure 1). For
example,to set the timer to come on at 8:00 a.m. and to
turn off at 1:00 p.m., push tappets on the dial to
between the numbers 8 and 13 to outer edge of dial.
Figure 1

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3.5 SLIMLINE COMBI TIMER - HOUSEHOLDER INSTRUCTIONS
1000 RF – 2 channel Timer / Thermostat
The Firebird 1000 RF – 2-channel set consists of a two-channel radio
frequency timer / thermostat, providing timed control of hot water, and
timed thermostatic control of central heating. The set is made up of a
battery-powered transmitter (Tx) (see figure 1) and a boiler-mounted
receiver (Rx) (see figure 2). The receiver fits within the boiler. For correct
connection, follow the instructions supplied with the controller.
A suitable location on the wall should be chosen to mount the trans-
mitter, away from draughts or any extraneous sources of heat, including
sunlight.
The transmitter is a 7 day programmable device, giving timed control
of hot water and timed thermostatic control of heating. Installation
and operating instructions for the transmitter are available from the
manufacturer and are supplied with the unit.
The Firebird 1000 RF needs a clear line of vision between the transmitter and
the receiver to operate. Some materials within domestic structures have a
varying impact on the strength of radio frequency signals, for instance metal
sheeting being one that obstructs the signals.This means that the Firebird
1000 RF can not be installed inside the casing of an outdoor boiler, i.e. a
Combipac or Heatpac.
Grasslin Single Channel 24 Hour Timer
The F1 Timer is used to time the central circuit only in the Firebird Slimline
Combi Boiler.This means that the combi is switched on 24 hours a day when
the domestic hot water is on stand by mode.The timer is simple to use and
install. Installation instructions are supplied with the timer.
Figure 3 Figure 4 Figure 5 - Off Figure 6 - On Constant Figure 7 - Timed Mode
Operating the timer:
1. The timer has 3 settings:
- Off (see figure 5).
- On Constant (see figure 6).
- Timed Mode (see figure 7).
2. Setting the time.
The time is shown in 24 hour scale. Each line between the numbers
represents 15 minutes.Turn the dial until the white arrow (see figure
3) points at the time.The time in this picture is 2.30 pm.
3. Setting the timer:
Slide the switch to Timed Mode (see figure 7). Around the timer there
are a series of pins. Each pin represents 15 minutes, by puling out the
pins (see figure 4).This brings on the central heating in the Combi for
this length of time. In figure 4, the 5 pins are pulled out from 7.15 to
8.30 am.This means that the central heating in the Combi is operating
for this length of time (one hour and fifteen minutes).
Figure 1
Figure 2
Dis
p
la
y
Mode
Reset
Boiler mounted
Rx Receiver

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4.1 - INSTALLATION GUIDELINES - REGULATIONS & GUIDELINES
TIME AND TEMPERATURE CONTROLS
The Building Regulations state that central heating
systems must have time and temperature control on the
pipe circuits (eg. thermostatic radiator valves / TRVs, room
thermostats, cylinder thermostats etc.).
BURNER
The burner is factory set for use with kerosene
28 second class C fuel.
ROOM SEALED BALANCED FLUES
BS 5410 Part 1: 2014 - Code of Practice for Oil Firing -
Installation up to 44kW Output Capacity for Space
Heating and Hot Water Supply Purposes - Paragraph 11.2
Mounting.
“The flue terminal should be mounted so that it is
separated from any combustible material forming a part of
the building.
Such combustible material may take the form of cladding
on the surface of a non-combustible wall through which
the flue outlet passes. In such a case, the cladding
adjacent to the flue outlet should be replaced by
non-combustible material extending not less than 50mm
beyond the outside dimensions of the flue outlet.
The wall through which the flue outlet passes may itself be
of combustible material, and if so the flue outlet, where it
passes through the wall, should be surrounded by
non-combustible insulating material not less than 50mm
thick (see next page). The insulating material itself should
be contained in a steel liner to provide the necessary
structural rigidity and to prevent moisture reaching the
insulating material.
WARNING
The manufacturer cannot accept responsibility for any
damage to persons, animals or property due to error in
installation or in the burner adjustment or due to
improper or unreasonable use or non observance of the
technical instruction enclosed with the burner, or due to
the intervention of unqualified personnel.
Please not following important points before
commencing installation.
INSTALLATION & COMMISSIONING
Boilers must be installed, commissioned and serviced by
an OFTEC registered, competent, qualified engineer and
as set out in the installation manual, using correct test
equipment.
EXPANSION VESSEL
Total water content of system and boiler must be
calculated to determine if an additional pressure vessel is
required.
HARD WATER - LIMESCALE
Failure to check water hardness and fit appropriate water
softening equipment will result in scale build up and
consequent reduction in water heating performance.
Check with local Water Authority if in doubt.
PLASTIC PIPING - WARNING
The boiler thermostat control and safety system is not
designed, and must not be relied on, to protect plastic
pipe from overheating. Plastic pipe must never be
connected directly to the boiler. If you choose to use
plastic pipe anywhere on your heating circuits, please
consult the plastic pipe manufacturer for their
instructions on how to ensure their product never
overheats. Our boiler control and safety high limit
thermostats are not designed to fulfil this function.
Firebird accepts no responsibility for failure of plastic
piping and fittings for whatever reason.
BOILER THERMOSTAT / THERMISTOR FUNCTION
The control thermostat on the boiler allows the
householder to vary temperature to central heating from a
low of 60˚C to a high of 80˚C to 82˚C, depending on the
model.
In accordance with EU boiler standards, your boiler is also
fitted with a safety high limit thermostat, fixed at 114˚C.
This system protects the boiler in the event of the control
thermostat failing and keeps the boiler safe.
The safety high limit thermostat will shut the boiler off and
will require the limit button to be pushed to restart the
boiler. If the problem re-occurs, you should call your
service engineer.
In cases where the flow from the boiler is down to the
heating system,fitting a pump over run thermostat (a pipe
stat) is recommended. This is to prevent the residual heat
build up in the boiler from unnecessaril yactivating the
high limit thermostat and thus causing nuisance. See
Heatpac Wiring Diagram on page 53.
Firebird Kitchen, System, Combi and Heatpac models are
factory fitted with an over run thermostat pump.

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11
4.2 - POSITIONING THE BOILER - REGULATIONS & GUIDELINES
Ensure that adequate clearance is available for making the water and flue connections.
The boiler is serviced from the front and a clearance of 750mm must be available at the front of the boiler.
No special hearth is required as the boiler is fully insulated, but the floor must be
level and capable of supporting the weight of the boiler and its water content.
Sound levels must also be a consideration.Whilst Firebird Enviromax boilers are one of the quietest boilers on
the market, some householders are particularly sensitive and the following points should be considered:
1. Tiled surfaces in a small room will amplify noise - particularly if the wall construction is hollow.
2. If a conventional flue passes through a bedroom, it is capable of transmitting noise.
3. Low level flue terminals can produce exhaust noise on the outside terminal
and this should be considered when siting near adjacent property.
4. The Firebird low level flue kit has been specifically designed for
Firebird’s indoor boilers.The use of third party low level flue kits
is not recommended and may affect the warranty.
5. The siting of the boiler should take into account
the disposal of condensate products.
• It is recommended that a suitable
corrosion inhibitor is added to the
heating system.
• New and existing systems should be
treated with chemical cleaner and
properly flushed before the boiler is
fitted and corrosion inhibitor added.
• In areas of hard water, a suitable
descaler would also be required.
Please ensure that:
1. Adequate clearance is available for making
the water and flue connections.
2. There is at least a 25mm clearance around the
boiler and flue from combustible surfaces.
3. There is a 750mm clearance at the front
of the boiler for easy of service.
Seal with flange or silicon
to prevent ingress of
moisture and
combustion gas

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12
4.3 - CONDENSATE DISPOSAL - REGULATIONS & GUIDELINES
Condensate drain baffle
Condensate drain float
Condensate baffle and condensate trap
Condensate trap
Condensate hose
Before switching on your
Firebird condensing oil boiler
check that:
(1) The float & condensate drain
baffle are in place.
(2) That the condensate trap
is primed.
(3) The condensate discharge
pipe is a corrosion
resistant pipe.
The condensate trap is located
at the base of the boiler.
SYSTEM NO. 1 CONDENSATE TRAP
IMPORTANT Always prime condensate trap.
Firebird condensing boilers, when in condensing mode, extract more heat from the flue products and the resulting
condensate which is mildly acidic, needs to be drained from the boiler via a condensate pipe to the drainage system.
Provision must be made for the removal of condensate from the boiler to an internal soil stack, waste pipe,
external soil stack, gully or soak-away, as per BS 6798: 2014.
The 75mm condensate trap is provided with the boiler and situated on the front of the boiler (under the cleaning door).
This should be checked at regular intervals and cleaned during annual service.
The condensate line should:
• be plastic and have a minimum diameter of 22mm;
• have a fall from the boiler of 1:100 minimum;
• have as few bends as possible to reduce the risk of trapping condensate.
Copper or steel cannot be used.
CONDENSATE PIPEWORK THAT IS EXTERNAL OR IN AN UNHEATED GARAGE SHOULD NOT EXCEED
3 METERS AND SHOULD BE LAGGED WITH WATER PROOF INSULATION TO PREVENT FREEZING.

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4.3 - CONDENSATE DISPOSAL - REGULATIONS & GUIDELINES
SYSTEM NO. 2 - CONDENSATE PUMP
Kitchen Control Panel
Stack
Ground level
To condensate pump
Condensate drain
From
condensate
pump to
drain
Boiler
10 mm Griflex tubing
discharge pipe
Condensate pump performance:
Flow rate: 7.2 l/min
Lift: 5.m
Head: 8.m
Condensate
pump wired
in to come
on with burner
Condensate
pump
Hose pipe
Out to drain
Inlet connected to
condensate drain
at base of boiler
must be into
a sealed pipe
Out
Inlet
Brown
L2 L1
N
CONDENSATE PUMP
(kit is available as an optional extra)
Boiler
Sealed
Condensate Drain
Condensate Drain
Trap
Lime Stone
Chippings
Free Draining Soil
Soak Away
Figure 1
Boiler
Condensate Drain
Washing
Machine
Gully
Waste
Pipe
Trap
Figure 2
Boiler
Condensate Drain
Gully Trap
Figure 3
Boiler
Condensate drain
Stack
Trap
Discharge pipe
Condensate drain must have
a minimum diameter of 22mm
and it must be supported with
a 2.5˚ (1:100) fall from boiler.
Figure 4
Ensure that the boiler combustion chamber cannot be filled through the condensate trap from
another appliance (eg. washing machine) which is drained at a higher level (see Figure 2).

4
14
4.4 - FLUE REGULATIONS - REGULATIONS & GUIDELINES
BALANCED FLUE SITING
Notes: 1. The terminal should be positioned to avoid combustion products entering
the building or accumulating in stagnant pockets around buildings.
2. The terminal must be protected by a guard if it is less than 2 metres above ground
level or in a position where any person has access to it (i.e. a balcony).
3. A heat protection shield should be fitted if the terminal is less than 850mm from
a plastic or painted gutter or less than 450mm from painted eaves.
4. Prevailing winds should be taken into account when siting a flue.
* FIREBIRD RECOMMENDS AS PER OFTEC RECOMMENDATIONS, THAT THE FLUE SHOULD
BE A MINIMUM DISTANCE OF 1 METRE FROM OPENINGS SO THAT IT DOES NOT
CAUSE A NUISANCE AND PERMITS THE DISPERSAL OF COMBUSTION PRODUCTS
(SEE PAGE 18).
ALWAYS CHECK FOR ANY BUILDING REGULATIONS AMENDMENTS WHICH MAY
HAVE BEEN ISSUED AFTER THE PUBLICATION OF THIS MANUAL
A
A
C
B
C
A. Horizontal from opening,
airbrick, opening window
etc.
B. From an internal or
external corner.
C. Below an opening,
airbrick, opening window
etc.
Book 3 2010
*Where the terminal is within 1 metre of any plastic material, such material should be protected from the
effects of combustion products of fuel. There are additional general requirements in most Regulations and
Standards that the flue must be positioned so that it does not cause a nuisance and permits the dispersal of
combustion products.
NOTE: The Building Regulations clearances shown above are the minimum allowed.To take account of
prevailing site conditions, it is advisable wherever necessary, to follow the manufacturer’s preferred
recommendation. If in doubt contact the manufacturer for advice.
See note at foot of page
Building Regulations
BUILDING REGULATIONS ABC
Northern Ireland 2000 600 600 600
Republic of Ireland 1997 600 600 600

4
15
4.4 - FLUE REGULATIONS - REGULATIONS & GUIDELINES
A
G
E
B
C & D
K
F
F
L
N
O
P
H
J
Boundary
Boundary
F
Q
Q
QQ
Q
Q
Q
R
Clearances advised by BS 5410 Part 1: 2014
Regular Appliance (Open, Low Level Discharge and Balanced) Flue Termination Clearance
The basic requirement with regard to flue positioning is that no hazard or nuisance is caused by the flue gases.
Diagrams 20a and 20b show clearances advised by BS 5410 Part 1: 2014.
Regional requirements where flue clearances differ can be found in the
regional requirements section in OFTEC Book 3 2010
Pressure JetLocation
Appliance Burner Type
Condensing
A Directly below an opening, airbrick, opening window etc. 1000
B Horizontally to an opening, airbrick, opening window etc. 1000
C Below a gutter, eaves or balcony with protection 1000
D Below a gutter or a balcony without protection 1000
E From vertical sanitary pipe work 300
F From an internal or external corner or surface or boundary alongside the terminal 300
G Above ground or balcony level 300
H From a surface or a boundary facing the terminal 2500
J From a terminal facing the terminal 1200
K Vertically from a terminal on the same wall 1500
L Horizontally from a terminal on the same wall 750
M Above the highest point of an intersection with the roof 600
N From a vertical structure on the side of the terminal 750
O Above a vertical structure less than 750mm from the side of the terminal 600
P From a ridge terminal to a vertical structure on the roof 1500
Q Above or to the side of any opening on a flat or sloping roof 300
R Below any opening on a sloping roof 1000
Minimum distances to terminals in millimeters as measured from the top of the chimney
or the outer edge of where flue gases pass through low level discharge openings
SEE NEXT PAGE FOR IMPORTANT NOTES
Diagram 20a

4
16
4.4 - FLUE REGULATIONS - REGULATIONS & GUIDELINES
BALANCED FLUE BOILERS
The Firebird boiler may be set for room-sealed flue operation using a Firebird condensing balanced flue kit. This kit does not
draw combustion air from inside the room. It is drawn from outside, direct to the burner by an air pipe supplied with the
boiler. Flue gases are expelled through the same kit. However, if the boiler is installed in a compartment or small room, some
ventilation air is necessary to maintain an acceptable temperature in the boiler area.
55cm2/kW
55cm2/kW
110cm2/kW
110cm2/kW
of boiler output
Balanced flue boiler in room (eg. kitchen) does not require individual ventilation.
BALANCED - FLUE BOILERS IN COMPARTMENTS
NOTES: These notes form an integral part of the information shown on the previous page.
1. Terminals should be positioned to avoid products of combustion accumulating in stagnant pockets around the
building, or entering into buildings.
2. Appliances burning Class D oil have additional restrictions (see OFTEC Book 3 2010).
3. Vertical structures in N, O and P include tank or lift rooms, parapets, dormers etc.
4. Terminating positions A to L are only permitted for appliances that have been approved for low level flue and low
level balanced flue discharge when tested to BS EN 303-1.
5. Terminating positions must be at least 1.8m distant from an oil storage tank unless a wall with at least 30 minutes
fire resistance and extending 300mm higher and wider than the oil storage tank is provided between the oil storage
tank and the terminating position.
6. Where a flue is terminated less than 1m away from a projection above
it and the projection consists of plastic or has a combustible or painted
surface, then a heat shield of at least 750mm wide should be fitted to
protect these surfaces.
7. For terminals used with vaporising burners, a horizontal distance of at
least 2300mm is required between the terminal and the roof line.
8. If the lowest part of the terminal is less than 2m above the ground,
balcony, flat roof or other place to which any person has access, the
terminal must be protected by a guard.
9. Notwithstanding the dimensions given in the diagram and table, a
terminal should not be sited closer then 300mm to combustible material.
10. It is essential that a flue or chimney does not pass through the roof
within the shaded area shown by dimensions Q and R.
11. Where protection is provided for plastic components, such as guttering,
it is essential that this is to the standard specified by the manufacturer of
the plastic components.
Separation between a boundary
and terminal at right angles
Boundary as
party wall
Pressure
jet
appliance
Plan at party wall
300mm
minimum
Diagram 20b

4
17
4.4 - FLUE REGULATIONS - REGULATIONS & GUIDELINES
Ventilation and Combustion Air
Conventional Flue Boilers
An adequate supply of combustion and ventilation air is essential for efficient and safe boiler
operation and the openings for this should be positioned to cause least possible draught, with no
possibility of being accidentally blocked.
Please note:The British Standard Code of Practice for Oil Firing BS 5410 Part 1: 2014, requires a perma-
nent air inlet opening of 55cm2per kW of boiler rated output. (Note: 1kW = 3412 BTU/h).
Also, when the boiler is installed in a compartment or confined space, ventilation openings are
required to ventilate and to avoid overheating in the boiler area.
OPEN FLUE
BOILER IN ROOM
BOILER COMPARTMENT
VENTILATED FROM OUTSIDE
BOILER COMPARTMENT
VENTILATED FROM ADJOINING ROOM
55cm2/kW 55cm2/kW 55cm2/kW 110cm2/kW
110cm2/kW 165cm2/kW
Combustion & Ventilation air supply for conventional open flue boilers
The figures shown are free areas of grilles in cm2 per kW of appliance rating (output).
FULL TEXT of both BS 5410 Part 1: 2014 and appropriate Building
Regulations for each country should be obtained and fully applied.
N.B. Please note:
BS 5410-1:2014 only permits room sealed boilers to be sited within garages.
Definitions
Combustion Air: Air required directly by boiler oil burner for combustion process.
Ventilation Air : Air required in room for ventilation, cooling, etc. and to promote
a healthy living environment.

CONDENSATE PLUME DISPERSAL
When choosing the location for a condensing boiler,
special consideration must be given to the positioning of
the flue terminal. Care should be taken to locate it so as to
prevent either the end user or their neighbours perceiving
the plume to be a nuisance.
It should be noted that the normal statutory clearances
required around low level flue terminals may not be
sufficient to cope with plume dispersal from a condensing
boiler. The following points should be considered:
1. Plumes can extend out horizontally and can also drift
out to the sides and above the terminal. Care needs
to be taken, therefore, to avoid the plume reaching
adjacent surfaces, particularly windows and
neighbours dwellings.
2. Flue terminals need to be located where air can pass
freely across them to disperse vapours.
3. The effect of the moisture generated must be
considered in relation to the possible corrosion of
metal parts it might reach and to the possible
formation of ice on pathways in freezing conditions.
4. Keep flue terminals a minimum of 1m (horizontally)
from openings in the building.
5. Do not install flue terminals directly below a window.
6. Do not install flue terminals next to a door.
7. Do not install flue terminals within 1m of ventilated
soffits or eaves.
8. Keep flue terminals at least 2.5m away from a surface
or boundary facing the terminal.
9. In certain circumstances the installation of a plume
dispersal extension to the flue may be unavoidable.
This takes the plume exhaust from the boiler up and
away from any obstruction, door or window opening
and will also prevent the risk of re circulation of the
plume gasses into the air intake of the burner (on
next page).
10. Follow the appliance manufacturer's instructions.
FLUE TERMINAL
4
18
4.5 - FLUE SYSTEMS - REGULATIONS & GUIDELINES
CONVENTIONAL FLUE SYSTEMS
IMPORTANT
The Firebird condensing boiler must not be installed
with existing flue systems.A flue system suitable for wet
flues must be used. If a flue system which is unsuitable
is used it will invalidate the warranty.
Because of the high operating efficiencies of the
Firebird condensing boilers and low flue gas
temperatures, it is necessary to pay extra special
attention to the flues and chimneys.
Existing chimneys must be lined with a liner certified
as suitable for condensing oil boilers by a flue
manufacturer.
Twin wall insulation must be used for external
applications, with seals and stainless steel inner skin.
Only vitreous enamel or high grade stainless steel can
be used between boiler and chimney in an internal
installation, aluminium or asbestos type material must
not be used (vitreous enamel must not be cut).
Condensate must be able to run back into the flue
chamber of the boiler and not escape, as up to 1.5 ltr. of
condensate can be produced in a conventional flue. No
trap is required in the flue system.
The terminal must be positioned to avoid combustion
products entering the building and as per Building
Regulations. Refer to BS5410 Part 1: 2014 OFTEC
installation requirements book 4.
Every individual concerned with any aspect of
installation should be deemed as competent, and be
aware of all current National and Local Government
Standards and Building & Installation Regulations.