Trianco EuroStar 50-90 User guide

To be retained by householder
USER, INSTALLATION
COMMISSIONING & SERVICING
INSTRUCTIONS
FS External Models
EuroStar 50-90
EuroStar 95-115
FLOOR STANDING
OIL FIRED CENTRAL HEATING BOILERS
FOR EXTERNAL INSTALLATION ONLY
TRIANCO
BED 92/42 EEC
EMC 89/336 EEC

HEALTH AND SAFETY
INFORMATION FOR THE INSTALLER AND SERVICE ENGINEERS
Under the Consumer Protection Act 1987 and the Health and Safety at Work Act 1974, it is a
requirement to provide information on substances hazardous to health (COSHH Regulations
1988).
The Company takes every reasonable care to ensure that these products are designed and con-
structed to meet these general safety requirements, when properly used and installed.
To fulfil this requirement products are comprehensively tested and examined before despatch.
This appliance may contain some of the items below.
When working on the appliance it is the Users/Engineers responsibility to ensure that any neces-
sary personal protective clothing or equipment is worn appropriate to parts that could be consid-
ered as being hazardous to health and safety.
INSULATION AND SEALS
Glass Rope, Mineral Wool, Insulation Pads, Ceramic Fibre, Glass Insulation.
May be harmful if inhaled. May be irritating to the skin, eyes, nose or throat. When handling avoid
inhalation and contact with eyes. Use (disposable) gloves, face masks and eye protection.
After handling wash hands and other exposed parts. When disposing, reduce dust with water
spray, ensure parts are securely wrapped.
GLUES, SEALANTS & PAINT
Glues, Sealants and Paints are used in the product and present no known hazards when used in
the manner for which they are intended.
KEROSENE & GAS OIL FUELS (MINERAL OILS)
1. The effect of mineral oils on the skin vary according to the duration of exposure.
2. The lighter fractions also remove the protective grease normally present on the surface of the
skin rendering the skin dry, liable to crack and more prone to damage caused by cuts and
abrasions.
3. Skin rashes (oil acne). Seek immediate medical attention for any rash, wart or sore
developing on any part of the body, particularly the scrotum.
4. Avoid as far as possible any skin contact with mineral oil or with clothing contaminated with
mineral oil.
5. Never breathe any mineral oil vapours. Do not fire the Burner in the open i.e. out of the Boiler
as a misfire will cause unburnt oil vapours.
6. Barrier cream containing lanolin such as Rosalex Antisolv, is highly recommended together
with a strict routine of personal cleaning.
7. Under no circumstances should mineral oils be taken internally.

CONTENTS
PAGE
1. USER INSTRUCTIONS 1/2
After sales service information 3
2. INTRODUCTION 4
3. TECHNICAL INFORMATION 5
Outline Dimensions 5
Technical specifications 6
External model wiring diagram 7
4. INSTALLATION 8
Regulations 8
Health and Safety 8
Siting the Boiler 8
Heating and domestic hot water system 8
Electrical supply 9
Thermostats 9
Frost Protection 9
5. OIL SUPPLY 10
Oil storage tank - Steel and Plastic 10
Oil supply line 10
Single pipe oil supply 10/11
Two pipe oil supply 10/11
Oil De-aerator - Single pipe supply 10/12
6. FLUE SYSTEM 13
Terminal Assembly 14
7. COMMISSIONING 15
Procedure 15
Handing over 15
8. SERVICING 15
Oil Tanks 15
Line Filters 15
Burner 15
Boiler 16
9. FAULT FINDING 17/18
10. SPARES 19
Boiler parts 19

HOW TO USE YOUR TRIANCO
BOILER
The Trianco EuroStar has been designed and
constructed to give years of trouble free service and
these instructions are provided to assist you in obtaining
the best performance with the least trouble and cost.
The boiler is fully automatic in operation and requires
little attention other than the setting of the thermostat and
any system controls such as a room thermostat and
time-switch.
TO FIRE THE BOILER
Before firing the boiler, ensure the system is full of water,
there is sufficient oil in the storage tank and all valves are
open.
1. Check that the Time-switch/Programmer (if fitted) is
ON and the room thermostat is calling for heat.
2. Set the boiler thermostat to the desired temperature.
3. Switch on the electrical supply to the boiler and the
burner should fire after a few seconds of fan
pre-purge.
4. Set the Time-switch/Programmer (if fitted) to the
times and programme required.
5. The boiler will now operate automatically, cutting in
and out according to the heat demand.
TO STOP THE BURNER
The burner may be stopped by turning the Boiler Control
Thermostat fully anti-clockwise to the OFF position ‘O’
If the boiler is to be off for a long time, it is recommended
that the mains supply to the boiler is switched off or the
Time-switch/Programmer (if fitted) is switched to the OFF
position.
BOILER CONTROL THERMOSTAT
The boiler control thermostat enables you to select the
temperature of the water leaving the boiler. It is calibrated
between High and Low in five intermediate settings,
corresponding to a temperature range of 82°C (high) to
55°C (low).
Set the temperature by turning the knob to the required
temperature, however, the installer should take into
consideration that the return water temperature must not
drop below 60°C when the appliance is up to full operating
temperature.
The thermostat is switched off when the knob is turned
fully anti-clockwise with the pointer opposite ‘0’.
HIGH LIMIT THERMOSTAT
(Hand Reset)
The high limit thermostat is factory set and requires no
adjustment. Should the boiler thermostat malfunction,
the limit thermostat will take over and shut down the
boiler.
If the limit thermostat operates frequently, consult your
Service Engineer as there may be a fault in the system.
To reset the limit thermostat, remove the front panel and
push in button.
Note: The limit thermostat can only be reset when the
water temperature has dropped at least 20° C.
BURNER LOCK-OUT
If the burner fails to light, it will go to lock-out. If this
occurs, wait about one minute then remove the front
panel and press illuminated reset button to start burner.
In the event of the burner not firing wait a further minute
and then press the reset button again. If the burner still
fails to start, switch off the electrical supply to the boiler.
WARNING - DO NOT ATTEMPT TO START BURNER
MORE THAN TWICE
(See Simple Fault Finding before contacting your
Service Engineer).
1
BOILER CONTROL PANEL
FRONT DOOR REMOVED
BURNER
LOCK-OUT LIGHT
& RESET BUTTON
(PUSH TO RESTART
BURNER)

SYSTEMS CONTROLS
ROOM THERMOSTAT
The room thermostat should not be positioned near a
source of heat such as a radiator or exposed to the sun
as this will cause the central heating to switch off before
the room is up to temperature. Follow the manufacturer’s
instructions for best siting position for the thermostat.
TIME-SWITCH/PROGRAMMER
When choosing the operating times for your boiler, it is
useful to remember that central heating usually takes
between half an hour to an hour before it becomes
effective.
It is suggested that the Time-Switch/Programmer is set to
bring on the heating about an hour before heating is
required.
It is also worth noting that the heating system will
usually remain effective for up to half an hour after
boiler shut down. The timer can therefore be switched
off earlier as an economy measure.
FROST PROTECTION
If the boiler and central heating is shut down for many
hours during very cold weather, the water may be in
danger of freezing and, as such, it is advisable to protect
the installation with a frost thermostat.
If the system is shut down for a long period during very
cold weather, it is advisable to completely drain the
system. However, frequent draining should be avoided,
especially in hard water areas, as this could lead scaling
of the boiler waterways.
SHUTTING DOWN FOR THE SUMMER
If the boiler is shut down for the summer months, it is
advisable to have it serviced and thoroughly cleaned as
soon as possible to minimise corrosion of the heating
surfaces.
OIL
The only fuel to be used with this appliance is 28 sec.
Kerosene (BS 2869:1983 Class C2).
OIL TANK
Always ensure the tank is topped up at regular intervals,
do not wait until the tank is nearly empty before refilling,
otherwise sludge and water could be sucked into the oil
pipe to affect the burner’s operation and reduce pump
life.
After a delivery of oil, it is recommended that the oil is
allowed to settle in the tank for about half an hour before
restarting the burner.
Sludge and water caused by condensation should be
drawn off at the tank drain-cock annually.
SIMPLE FAULT FINDING
If the burner fails to start for no apparent reason, make
the following checks before calling your Service
Engineer.
1. Check for failure in the electrical supply e.g. a power
cut
2. Check for a blown fuse. If the fuse has blown and on
replacement blows again, switch off the mains
electrical supply to the boiler and call your Service
Engineer.
3. Check that there is adequate oil in the tank and the
shut-off valves are open.
4. Check for burner lock-out. Press the reset button
and burner should fire. DO NOT PRESS MORE
THAN TWICE. Refer to ‘Burner lock-out’ for further
advice.
5. Check for excess water temperature (Refer to ‘High
Limit Thermostat’ for advice).
Note: If the boiler has been off as a result of a power
failure, it will be necessary to reset the Time
Switch/Programmer to the correct time unless it
has a built-in power reserve.
SERVICING
To ensure efficient and reliable operation of the boiler, it
is essential that the oil burner is initially commissioned
by an OFTEC trained and registered engineer and an
annual service is given thereafter.
Notes:
ELECTRICAL SAFETY CHECKS SHOULD BE
CARRIED OUT BY A QUALIFIED ELECTRICAL
ENGINEER
(a) It is the responsibility of the Installer to ensure
proper commissioning is carried out.
(b) It is a requirement of the boiler’s guarantee and
any extended warranty that an annual service
is carried out by a qualified engineer.
Commissioning Engineer’s
Signature...........................................................................
Company Name................................................................
..........................................................................................
Address.............................................................................
..........................................................................................
..........................................................................................
Tel. No:..............................................................................
2

3
TRIANCO
CUSTOMER AFTER SALES SERVICE INFORMATION
SERVICE CENTRE AND TECHNICAL SUPPORT
Tel: [phone] Fax: [phone]
Hours of business Monday to Thursday 8.30am - 4.45pm
Friday 8.30am - 2.30pm
A step by step guide to reporting a fault
with your appliance
A qualified field SERVICE ENGINEER is available to
attend a breakdown or manufacturing fault occurring
whilst the appliance is under guarantee.
The appliance must be made available for service during
normal working hours, Monday to Friday (no weekend
work is accepted).
A charge will be made where:
•Our Field Service Engineer finds no fault with the
appliance
or
•The cause of a breakdown is due to other parts of the
plumbing/heating system (including oil line/lack of
oil), or with equipment not supplied by Trianco.
or
•Where the appliance falls outside the guarantee
period (see terms and conditions enclosed).
or
•The appliance has not been correctly installed,
commissioned or serviced as recommended (see
commissioning, installation and servicing
instructions)
or
•The breakdown occurs immediately following an
annual service visit. In this instance your appointed
Service Agent must check all his work PRIOR to
requesting Trianco to attend.
NOTE: Burner nozzles are currently guaranteed
until the first service.
Over 50% of all service calls made are
found to have no appliance fault.
What to do in the event of an appliance
fault or breakdown:
Step 1: Always contact your installer or commissioning
engineer in the first instance, who must
thoroughly check all his work PRIOR to
requesting a service visit from Trianco.
Step 2: If your appliance has developed an in-guarantee
fault your installer should contact Trianco
Service Centre for assistance.
What happens if my installer/engineer is
unavailable?
Step 3: Contact Trianco Direct. We will provide you with
the name and telephone number of our
Service Agent. However, a charge may apply if
the fault is not covered by the appliance
guarantee (payment will be requested on site by
our independent Service Agent).
PLEASE NOTE:
Unauthorised invoices for attendance and repair work
carried out on this appliance by any third party will not be
accepted by Trianco.

2. INTRODUCTION
The Trianco EuroStar Floorstanding external Boiler has
been designed to conform to European
Directive/Standards BED 92/42 EEC LVD EN 60335-1
EMC 89/336/EEC.
The matched pressure jet burner which is exceptionally
quiet in operation, ensures clean and efficient
combustion with low NOxemissions
The EuroStar boilers are suitable for all normal open
vented central heating and indirect hot water systems but
can also be used with sealed systems up to a working
pressure of 3 bar with the appropriate sealed system
safety equipment. Two flow and return sockets are
provided to facilitate connection to the heating and hot
water systems.
On the 50/90 model, servicing can be carried out from the
front of the boiler. The front mounted flue-cover permits
easy access for the removal of the flue-baffles and
cleaning of heating surfaces.
The boiler is fully automatic in operation and incorporate
all necessary safety controls to ensure safe and reliable
operation.
Trianco EuroStar boilers are supplied with the burner set
for Kerosene 28 sec. Class C fuel to meet the Building
Regulation requirements for low level flue discharge.
4
Important Notice:
To comply with regulations in force, your new boiler must be installed and commissioned
by an OFTEC-registered engineer. The installation must also comply with current
Building Regulations, Part L.
Failure to meet the terms of these requirements may invalidate your guarantee.
THE PERSON(S) WHO INSTALLS THIS APPLIANCE, COMMISSIONS, SERVICES OR
CARRIES OUT ANY REMEDIAL WORK, IE ELECTRICAL FAULT FINDING, MUST
HAVE SUITABLE ENGINEERING QUALIFICATIONS

3. TECHNICAL INFORMATION
5
MODEL H W L L+
50/90 920 500 705 1015
95/115 980 500 765 1075
MODEL A
50/90 1''
95/115 1 1/4''
MODEL X Y Z
50/90 195 503 255
95/115 195 559 255
NOTE: ALL DIMENSIONS IN MM
FLOW & RETURN SOCKET SIZES
L+
W
W
L
Y
X
X
Z
Y
FLOW RETURN PIPE
ACCESS POINTS
88
88
47
SIDE VIEW
FRONT VIEW REAR VIEW
ELECTRIC CABLE
ENTRY
OIL LINE
ENTRY
==
A
Boiler
Tapping
Positions
FLOW & RETURN PIPE
LOCATIONS
Fig. 1 OUTLINE DIMENSIONS

Technical Specification
EuroStar Boiler Models 50/90 95/115
Rated Input (Btu/h) 98,000 127,700
(kW) 28.6 37.4
Rated Output (Btu/h) 90,000 115,000
(kW) 26.4 33.7
Burner See Burner See Burner
Details Leaflet Details Leaflet
Weight (empty) (kg) 100 130
Water content (litre) 22 30
Flow & return sockets (in.) 4 x 1 BSP 4 x 1 1/4 BSP
Max. operating pressure (bar) 3 3
(psi) 43.5 43.5
Test Pressure (bar) 4.5 4.5
(psi) 65.3 65.3
Water side resistance
10 diff (mbar) 25.0 25.4
20 diff (mbar) 8.3 8.2
Starting Current (amp) 3.5 3.5
Running Current (amp) 0.77 0.77
Control Thermostat - Adjustable up to 82°C
Limit Thermostat - Factory makes at 110° C (hand reset)
Frost Stat - Make at 5ºC
Casing Finish - Galvanised steel stove enamelled green
6

FIG. 2 WIRING DIAGRAM - EXTERNAL MODEL
7
REMOVE LINK WHEN
FITTING EXTERNAL CONTROLS

8
Heating and Domestic Hot Water Systems
The heating system should be installed in accordance
with current HVCA Codes of Practice and BS 5449 Part 1
‘Forced Circulation Hot Water Systems’.
All exposed pipework connecting the boiler to the heating
system must be lagged.
Water connections can be made to the boiler using both
pairs of flow and return tappings or, alternatively, single
diagonally opposite tappings can be used. Fig. 3
Fit drain-off cock in the lowest part of the system.
Where a boiler is also used for providing domestic hot
water, a double feed indirect cylinder to BS 1566 Part 1
must be used.
MAKE SURE ALL UNUSED BOILER TAPPINGS ARE
PLUGGED BEFORE FILLING THE SYSTEM.
Flush out the system to remove any swarf or residues
before fitting circulating pump.
Combustion Air (Conventional flue boilers)
The provision of an adequate supply of combustion air is
essential for the efficient and safe operation of the boiler.
The combustion air inlet is located at the top of the front
panel which under no circumstances should be covered
or blocked.
4. INSTALLATION
Regulations
Installation of the boiler must comply with the following
British Standards and Regulations:
BS 5410: Part 1 - Code of Practice for Oil Firing.
BS 5449 - Forced Circulation Hot Water Central Heating
Systems.
The Building Regulations - Part ‘J’ (England and Wales)
Part ‘F’ Section 111(Scotland)
Part ‘L’
The Control of Pollution (Oil) Regulations
Current I.E.E. Regulations
Local Water Undertakings By-laws
OFTEC Installation Requirements for Oil Fired Boilers
and Oil Storage Tanks.
Health and Safety at Work Act
The installer should be aware of his responsibilities under
the Act and provide, where necessary, appropriate
protection for persons carrying out the installation.
In the interest of safety, the boiler should be installed and
commissioned by an OFTEC trained and registered
engineer.
A useful guide to ‘Safe Working Practices for Oil Firing
Technicians’ is published by OFTEC.
ELECTRICAL WORK SHOULD BE CARRIED OUT BY A
QUALIFIED ELECTRICAL ENGINEER
Siting the Boiler
ALWAYS SITE THE BOILER IN A WELL DRAINED
AREA, DO NOT SITE THE BOILER IN AREA WHICH
WILL RETAIN WATER.
Sound Levels
(a) Some people are particularly sensitive to even low
noise levels so this aspect should be discussed with
the householder.
(b) Low level flue terminals produce some exhaust
noise, so care should be taken when siting adjacent
to neighbouring property.
Clearance and Service Access
EuroStar 50/90
When siting the boiler, (see terminal position diagram)
ensure adequate clearance is allowed for making water
connections, and allow at least 1 metre so that the boiler
can be full serviced from the front.
Hearth
The Boiler MUST be fitted on a suitable non-combustible
base that should be substantial enough to support the
weight of the boiler and its water content. It should also
be noted that the base level should be above ground
level to prevent water damage.
FIG. 3 REAR PIPEWORK

5. OIL SUPPLY
Note: The oil burner is factory set to burn 28 sec.
Kerosene.
Note: Only Kerosene is permitted for low level flue
discharge.
Oil Storage Tanks
The tank must not be installed within 3 metres of the boilers
terminal.
Size and Location of Tank
The tank should be large enough to allow for economic
deliveries and be located in the most unobtrusive
position, having regard to the need for safety, filling,
maintenance (if steel tank) and the head of oil required.
Whilst it is highly unlikely that a fire could start from a
domestic oil tank, it does however need to be protected
from a fire that may originate in a nearby building,
therefore the tank should not be located nearer than 1.8
metres from a building, nor closer than 760mm from a site
boundary. Where a tank has to be less than 1.8 metres,
the building wall must not have any openings other than
small ventilation openings. The wall shall have a half
hour resistance to an internal fire and extend 1.8 metres
from any part of the tank.
Alternatively, a non-combustible radiation barrier must be
provided which meets the requirements of BS 5410 Part
1: This standard applies to tanks up to a capacity of
3,400 litres which is deemed the maximum size for a single
family dwelling.
9
CABLE FIXING
Warning - High and Low Voltage
In certain parts of the country, where there is a known risk
of high or low voltage fluctuations, the oil burner shall be
prevented from starting by the use of a voltage sensitive
device if the voltage drops or increases sufficiently to
endanger the installation.
Thermostats
The boiler is fitted with a variable setting control
thermostat and a pre-set limit thermostat. Should the
boiler thermostat malfunction, the limit thermostat will
take over control and shut down the boiler.
Frost Protection
The boiler is fitted with a frost thermostat, which will
activate the burner should ambient temperature fall to
5ºC, the thermostat will automatically cut off on temper-
ature rise. There is no manual adjustment.
If the system is shut down for a long period during very
cold weather, it is advisable to completely drain the sys-
tem. However, frequent draining should be avoided,
especially in hard water areas, as this could lead to
scaling of the boiler waterways.
Electrical Supply
230V 1 Phase 50Hz (Fused 5 Amp)
Note: THIS APPLIANCE MUST BE EARTHED
All electrical wiring must be carried out by a qualified
electrician in accordance with current I.E.E. Regulations
and any Local Regulations that may apply.
The 230v - 50Hz electrical supply must be fused by a
double pole switch with a contact separation of at least
3mm in both poles, and shuttered socket (both complying
with the requirements of BS 1363) adjacent to the boiler.
Fuse supply at 5A. The minimum requirement for the
power supply cable should be a PVC sheathed flexible
cord, at least 0.75mm2(24x0,2mm) (code designation
H05 VV-F or H05 VVH2-F) as specified in table
16 of BS 6500.
This appliance MUST be earthed and the electrical
supply earth cable must be of a greater length than the
current carrying conductor cables (ie live and neutral
supply cables).
All external cables entering the control box must be
secured in position by strain relief bushes supplied (see
diagram on how to secure cable).
Terminal connections are also provided in the control
panel for ancillary controls.
See wiring diagram Fig. 2

10
Steel Tanks
Steel tanks should comply with the requirements BS 799,
Pt. 5: 1987 and mounted on brick or block piers with a
waterproof membrane between the piers and tank.
The tank should be fitted with fill and vent connections
(weather protected), a drain-off cock, shut-off valve and
an oil level indicator.
Plastic Tanks
Polyethylene tanks are now widely used because of their
advantages over traditional steel tanks:
(a) They do not need pier supports and can be mounted
directly on any flat surface giving uniform support for
the tank base.
(b) They do not corrode and therefore never need
painting.
(c) They are easier to handle because of their lower
weight.
(d) They have a 10 year manufacturer’s guarantee.
Plastic tanks should be fitted with similar components to
those used with steel tanks.
Fire Protection
To comply with building regulation Section J5:
1 Where a storage tank is close to a dwelling, fire
cladding must be provided to the eaves, if less than
1.8m from the top of the tank.
2The cladding must extend 300mm beyond the tank.
3 The tank must be sited on a non-combustible base.
Pollution Protection
To comply with building regulation section J6, the tank
must be ‘bunded’ (i.e. double walled) if:
1The tank is less than 10m from a stream.
2The tank is less than 50m from a well, spring, or drinking
water.
3 The tank cannot be viewed from the delivery point.
4In the event of a leak, there is a risk of oil reaching a
manhole cover or drain.
5 The tank capacity exceeds 2500 Litres.
Oil supply line
A long life flexible oil hose is supplied with the boiler.
A filter and shut-off valve are also required. These should
be fitted as shown if Figs. 4 and 5.
The oil shut-off valve should be fitted as close to the
burner as practicable to enable the burner to be
disconnected without undue loss of oil. The filter must be
connected in the oil supply pipe and positioned as close
to the oil tank as possible.
Fire Valve
Afire-valve must be fitted in the oil line outside the
building with its sensing phial positioned within the boiler
casing below the control panel. A clip is provided for
retaining the phial.
All oil line joints must be completely sealed and the total
pipe run thoroughly flushed out before connecting to the
burner. No soldered joints are permitted in the oil line.
The oil line can be fed into the back of the boiler base tray
or through the holes at the side.
Single pipe oil supply (Fig. 4 )
When, the bottom of the oil supply tank is above the
burner, a single pipe gravity system can be used. The oil
supply pipe must be connected to the suction port on the
burner pump via the flexible hose.
Two pipe oil supply (Fig. 5)
Where, the bottom of the oil storage tank is below the
burner, a two pipe suction lift system is necessary.
When using a two pipe system, it is important that the
by-pass screw is fitted, on the BFP II pump remove the
end cover and filter, then remove the ‘U’ washer by
unscrewing the bottom screw, then replace the screw
ensuring it is fully inserted. An additional flexible hose is
also required.
A spring loaded non- return valve must be fitted in the
suction line to stop the oil running back to the tank.
A filter, shut-off valve and fire valve must also be fitted in
the line.
No valves are permitted in the return line which must
remain unobstructed at all times.
Notes:
(1) The pump suction should not exceed 0.4 bar, other
wise dissolved gas will be released from the oil to
affect combustion.
(2) The return pipe must end at the same level as the
suction outlet to prevent loss of prime.
(3) The outlet from the tank should be approximately
75mm (3 in) above the bottom to prevent sediment
and water being drawn into the supply pipe.
Oil De-aerator -
Single pipe supply (Fig. 6)
Where a two pipe suction lift system is required, but the
return pipe is too long, or impractical to run, an Oil De-
aerator can be used. The burner is piped as for a two
pipe system up to the Oil De-aerator but only a single
pipe is required to be run back to the oil storage tank. A
none-return valve is not required with this system but the
bypass plug must be fitted in the pump as for a two pipe
system.

FIG. 4 SINGLE PIPE OIL SUPPLY INSTALLATION
FIG. 5 TWO PIPE OIL SUPPLYINSTALLATION
11
HEAD ‘H’ METRES. .0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
PIPE 6mm ID 10 21 31 41 52 62 73 83
PIPE 8mm ID 33 66 98 100 100 100 100 100
MAXIMUM OIL SUPPLY LINE LENGTH ‘L’
MAXIMUM
LENGTH
(METRES)
LIFT ‘L’ METRES. .0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
PIPE 6mm ID 48 42 36 30 24 18 11 5
PIPE 8mm ID 100 100 100 94 75 55 36 16
PIPE 10MM ID 100 100 100 100 100 100 88 40
MAXIMUM OIL SUPPLY LINE LENGTH ‘L’
MAXIMUM
LENGTH
(METRES)
TRIANCO
EUROSTAR BOILER
FIRE VALVE SENSOR
FIRE VALVE SENSOR
BURNER
BURNER
SHUT OFF VALVE
SHUT OFF VALVE
H
NONE RETURN VALVE
FITTED IN VERTICAL
PIPE RUN
50mm(2'') DIA
AIR VENT
50mm(2'') DIA
AIR VENT
SAW CUT PIPE (INSIDE TANK)
TO PREVENT SYPHON
LEVEL GAUGE
LEVEL GAUGE
25mm (1'')
APPROX FALL
ISOLATING VALVE
ISOLATING
VALVE
LEVEL GAUGE
VALVE
LEVEL GAUGE
VALVE
DAMP
PROOF
MATERIAL
MIN HEAD
0.5m(H)
TERMINAL
TERMINAL
GUARD
GUARD
OIL LEVEL LINE
FILTER
FILTER
REMOTE OPERATED FIRE VALVE
REMOTE OPERATED FIRE VALVE
2'' BSP MALE
HOSE CONNECTION
WITH CAP
2'' BSP MALE
HOSE CONNECTION
WITH CAP
STEEL
OIL STORAGE TANK
STEEL
OIL STORAGE TANK
25mm (1'')
APPROX
FALL
DRAIN VALVE
DRAIN VALVE
100mm
TRIANCO
EUROSTAR BOILER

12
FIG. 6 DE-AERATED OIL SUPPLY INSTALLATION
REFER TO MANUFACTURERS INSTRUCTIONS FOR ‘OIL DE-AERATOR’ INSTALLATION DETAILS
50 mm (2'') DIA AIR VENT
LEVEL GAUGE
LEVEL GAUGE VALVE
ISOLATING VALVE
DRAIN COCK
SHUT OFF VALVE
BURNER
OIL FILTER
FIRE VALVE SENSOR
TRIANCO EUROSTAR
BOILER TERMINAL
GUARD OIL DE-AERATOR
(OUTSIDE BUILDING
REMOTE OPERATED FIRE VALVE
OIL STORAGE TANK
(PLASTIC TANK SHOWN
NOTE OIL DE-AERATOR MUST BE INSTALLED UPRIGHT. IT MAYBE ABOVE OR BELOW BURNER, OUTSIDE BUILDING

A distance of at least 600mm must be allowed
between the terminal and any window, door or
other opening into the building, (see diagram for
recommended terminal positions).
(b) Flue Sealing
As the flue system operates under positive
pressure, it is essential to seal all flue joints.
Apply a thin bead of silicone sealant (supplied)
around flue pipe spigot before inserting into
socket.
(c) Fuel
Only Kerosene 28 sec. Class C2 is permitted for
boilers using low level flue discharge.
6. FLUE SYSTEMS
To evacuate the products of combustion safely and thor-
oughly, the boiler must have an efficient flue system. The
design and construction of the Trianco Flue already takes
these factors into account .
INSTALLATION NOTES
(a) Location (Fig. 7)
Modern low level flue boilers are designed to
operate at low noise levels. However, when
positioning your boiler, it is not recommended to
have the terminal facing a neighbours property
or patio etc. It should also be positioned to avoid
products of combustion entering the building.
13
Note (1) The terminal should be positioned so as to avoid
products of combustion entering the building.
Note (2) The terminal must be protected by a guard supplied
with the boiler.
Note (3) The flue must be positioned so that it does not
cause nuisance and permits the dispersal of
combustion products.
RECOMMENDED MINIMUM DISTANCES
FOR TERMINAL POSITION
FIG. 7 TERMINAL POSITION
Appliance burner type - Pressure Jet
Minimum distances to terminals in millimetres as measured from top of chimney
or the rim of a low level discharge opening
A Directly below an opening, air brick, window etc 600
B Horizontally to an opening, air brick, window etc 600
C Below a gutter, eaves or balcony with protection 600
D Below a gutter or balcony without protection 600
E From vertical sanitary pipework (*600) 300
F From an internal or external corner (*600) 300
G Above ground or balcony level (*600) 300
H From a surface or boundary facing the terminal 600
J From a terminal facing the terminal 1200
K Vertically from a terminal on the same wall 1500
LHorizontally from a terminal on the same wall 750
*Scotland 1990

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FITTING THE FLUE TERMINAL
1 With the back panel (item 1) removed for connecting the pipework, place the gasket (item 3) up to the acoustic
box (item 2) using the M6 studs for location.
2 Fit the back panel (item 1) in position and secure with the 9xM5 screws provided
3 Place the second gasket (item 4) up to the back panel
4 Fit the terminal box (item 5) with the discharge pointing downwards and secure with the 4xM6 nuts.
5 Fit the terminal guard (item 6) using the 4xM5 screws
FIG. 8
6
5
4
1
3
2
CONTROL BOX
ASSEMBLY
LOCK
1Back panel
2 Air Box
3Air Box Gasket
4 Terminal Gasket
5 Terminal Box
6 Terminal Guard

EuroStar 50/90
BAFFLE ARRANGEMENT
FRONT ACCESS
7. COMMISSIONING
It is strongly recommended that the boiler/burner unit is
commissioned by a qualified technician, preferably
OFTEC trained and registered.
It is the responsibility of the installer to ensure the boiler
is properly commissioned, failure to do so will make the
boiler’s guarantee and any extended warranty null and
void.
Although all burners are factory tested before despatch,
they will usually need further air adjustment to achieve
the readings indicated in ‘Burner detail leaflet’ because of
site variations in flue draught and back pressure.
Procedure
1. Switch off electrical supply to the boiler.
2. Ensure boiler is full of water and all valves are open.
3. Remove flue-cover and check that flue-baffles are
correctly positioned (See Fig 9 for baffle arrangement).
4. Disconnect oil hose from burner, open shut-off valve
and run off a quantity of oil into a container to check
for a clean air free supply then reconnect hose. (This
applies to single pipe gravity system only).
5. Check that the time-switch (if fitted) is in the ON
position and room and boiler thermostats are calling
for heat.
6. Switch on electrical supply and the burner should
start.
Note: The burner may lock-out on first firing due to
air in the pump, if this happens, wait about a minute
before pressing reset button to restart burner. If a
further lock-out occurs, the air should be bled from
the pump pressure gauge connection.
7. Start and stop the burner two or three times until
the flame cuts off sharply - this indicates any
remaining air has been dispersed.
8. All the burner to run for about 15 minutes, then
take a CO2reading through the sampling hole in
flue-cover. Compare the reading with that given
under ‘Burner Settings’ and adjust the air setting if
necessary to achieve the required CO2%. Also,
check the smoke and flue gas temperature.
Handing Over
After completing the boiler installation, the installer
should make a thorough check of the system to ensure it
is completely satisfactory and demonstrate to the user
the operation of the boiler and any system controls.
All instructions should be handed to the user for retention
and advice regarding the need for annual servicing.
8. SERVICING
IMPORTANT: ISOLATE ELECTRICAL SUPPLY TO THE
BOILER BEFORE SERVICING
To maintain the boiler’s high thermal efficiency and
reliable operation, it should be serviced annually by a
qualified engineer preferably OFTEC trained and
registered. Electrical work should be carried out by a
qualified engineer.
If the boiler is used to provide central heating and hot
water all year round, the best time for its annual service
is just before the start of the heating season.
Where the boiler is shut down for the summer months,
the service should be carried out as soon as possible
after the end of the heating season.
Oil tank
Open tank drain-cock to draw off any accumulated water
and sludge.
Line filters
Turn off oil supply and remove filter bowl. Wash filter ele-
ment clean with kerosene.
Casing
Check the external surfaces of the casing for corrosion, if
corroding clean down and apply a suitable material to
protect the surface.
15

16
4. Replace flue-baffles in the correct arrangement
(See Fig. 9 for order of assembly). Refit the flue-
cover and fully tighten wing-nuts to make a gas tight
seal.
5. Refit burner to boiler, connect flexible air hose
and plug-in burner lead.
6. Turn on oil supply, switch on electricity and burner
should fire.
7. Finally check the combustion readings with those
given under ‘Burner Settings’ and make any air or oil
pressure adjustments necessary.
Servicing the Boiler
(Burner removed)
1. Remove flue-cover and lift out flue-baffles
(See Fig. 9).
2. Brush all deposits from flue-baffles and internal
surfaces of the boiler.
3. Remove flue deposits from the combustion chamber
floor using a vacuum cleaner.
PART NO.208838
3-OFF
PART NO.208834
1-OFF
PART NO.208865
2-OFF
PART NO.208871
6-OFF
EuroStar 50/90
BAFFLE ARRANGEMENT
FRONT ACCESS
EuroStar 115
BAFFLE ARRANGEMENT
TOP ACCESS
FIG. 9

9. FAULT FINDING
ELECTRICITY SAFETY - Before making any electrical checks, switch off mains supply to boiler.
FAULT POSSIBLE CAUSE ACTION
BURNER WILL NOT START Control box locked out Press reset button on front of burner.
N.B. ONLY TRY TWICE
Limit-stat tripped Press reset button under control panel and
check function of boiler control thermostat.
Boiler thermostat or other system
controls satisfied Ensure all controls are calling for heat.
Fuse blown Fit new 5 amp fuse, if it blows again, check
for short circuit in wiring.
Check for live supply continuity up If live supply confirmed, change control box
to burner
Motor or pump seized Check for rotation and replace as
necessary.
BURNER STARTS No oil supply Check oil level in tank and feed to burner.
BUT FLAME NOT
ESTABLISHED Photo-cell not seeing flame Clean photo-cell and ensure it is fully
plugged in.
Air trapped in pump Bleed off air through pressure gauge
tapping.
Solenoid valve faulty Check coil for continuity and
replace if faulty.
Nozzle blocked Replace nozzle with one of same
specification.
Electrodes incorrectly set Reset gap and position
electrodes as shown in Burner diagram.
Electrode insulator cracked Check and replace if insulator cracked or
crazed.
Ignition transformer and H.T.
contacts Check for spark and condition of H.T.
contacts. Replace as necessary.
Low oil pressure Check pump pressure and adjust to
correct setting.
FLAME ESTABLISHED Oil contaminated with water Run off oil at burner until free of
BUT BURNER LOCKS water and drain condensation from tank
OUT AFTER FEW SECONDS
Oil filter partially blocked Wash filter clean with kerosene.
Photo-cell fault Clean photo-cell and ensure
it is fully plugged in. Replace if faulty.
Oil pressure low Check pump pressure and adjust
to correct setting.
17