Trianco EuroStar Premier 50/90 Condensing User guide

TRIANCO
To be retained by householder
USER, INSTALLATION
COMMISSIONING & SERVICING
INSTRUCTIONS
OIL FIRED CENTRAL HEATING BOILERS
FOR BALANCED OR CONVENTIONAL FLUE
BED 92/42 EEC
EMC 89/336 EEC
Premier 50/90 Condensing
Premier 100/125 Condensing

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
constructed 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
necessary personal protective clothing or equipment is worn appropriate to parts that could be
considered 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
How to use your Trianco Boiler 1
After sales service information 3
2. INTRODUCTION 4
3. TECHNICAL INFORMATION 5
Technical specifications 6
Wiring diagram 7
4. INSTALLATION
Regulations 8
Health and Safety 8
Siting the Boiler 8
System Design 8
Ventilation 8/9
Extractor fan 9
Electrical supply 9
Condensate Drain Connection 10
5. OIL SUPPLY
Oil storage tank - Steel and Plastic 11
Oil supply line 11
Single pipe oil supply 12/13
Two pipe oil supply 12/13
Oil De-aerator - Single pipe supply 14
6. FLUE SYSTEM
Conventional chimney 15
Balanced Flue System 16
2350 & 2351 Round BF Kits 17-19
7. COMMISSIONING
Procedure 20
Handing over 20
8. SERVICING
Oil Tanks 20
Line Filters 20
Servicing the Boiler 21
9. FAULT FINDING 22/23
10. SPARES 24

BOILER CONTROL THERMOSTAT
The boiler control thermostat allows 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 between 82°C
(High) and 55°C (Low). The thermostat is switched off
when the knob is turned fully anti-clockwise with pointer
opposite ‘O’.
The installer must take into consideration that the return
water temperature must not drop below 50°C when the
appliance is up to full operating temperature.
Note: Where a cylinder thermostat or room thermostat is
fitted ensure that the boiler thermostat is set above or
equal to the highest setting.
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.
The red light will illuminate when the limit thermostat has
operated.
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 has failed to light, the boiler will go into lock-out
mode. The illuminated reset button on the burner control
box will indicate this. To reset the burner press the
illuminated reset button. In case of the burner not firing
and the boiler returning to lock-out mode, 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. USER INSTRUCTIONS
Please note, to assist Trianco in improving customer
service, it is important that the guarantee/registration
card is returned.
HOW TO USE YOUR TRIANCO
BOILER
The Trianco EuroStar Condensing boiler has been
designed and constructed to give years of trouble free
service. 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).
On the control panel there are three neon indicator lights.
(See Fig 1 below)
Green - Power on to the boiler
Amber - Boiler is calling for heat
Red - Limit Thermostat Light
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. The green
and amber neon lights will illuminate 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.
1
Programmer
(optional) Boiler Control Thermostat
High Limit Thermostat
(under Control Panel)
BOILER CONTROL PANEL
BURNER
LOCK-OUT LIGHT
& RESET BUTTON
(PUSH TO RESTART
BURNER)
Green
Amber
Red
Fig. 1 Fig. 2

2
SYSTEMS CONTROLS
ROOM THERMOSTAT
The room thermostat should not be positioned near a
source of heat such as a radiator or be exposed to direct
sunlight, as this will cause the central heating to switch off
before the room is up to the correct required temperature.
Always follow the manufacturer’s instructions for the best
siting position of the room thermostat.
TIME-SWITCH/PROGRAMMER
When choosing the operating times for your boiler, it is
useful to remember that central heating systems usually
take between half an hour and an hour before becoming
effective and usually remain warm 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 any
period of time during very cold weather, or your boiler is
located in a boilerhouse external to the property being
heated, it is advisable to protect the installation with a
frost thermostat.
Where the system is not protected, it is suggested the
boiler is left switched on and the room thermostat set to a
low setting (e.g. 7° C) to prevent the building temperature
falling too low.
If the system is shut down for a long period during very
cold weather, it is also advisable to completely drain the
system. However, too frequent draining of the system
should be avoided, especially in hard water areas, as this
could lead to scaling of the boiler waterways.
See page 4 for flushing and water treatment.
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 recommended oil for your boiler is Kerosene C2 to
BS 2869.
Always ensure the oil storage tank is topped up regularly,
do not wait until the tank is nearly empty before refilling,
as sludge and water could be sucked into the oil pipe,
affecting the operation of the burner and potentially
reducing the life of the pump.
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 boiler.
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
2. Check for a blown fuse. If the fuse has blown and the
replacement subsequently blows again, switch mains
electrical supply to the boiler and contact your
service engineer.
3. Check that there is adequate oil in the tank and that
all isolation valves are fully open.
4. Check for burner lock-out (see page 1).
5. Check for excess water temperature (see high-limit
thermostat details, page 1, for further details).
Note: If the boiler has been shut down due to a failure
of the power supply, it may be necessary to reset
the time-switch or programmer to the correct
time,unless the device has a built-in power reserve.
SERVICING
To ensure efficient and reliable operation of the boiler, it
is essential that the burner be commissioned
immediately after installation, and prior to first use.. The
boiler requires an annual service thereafter.
IMPORTANT NOTES
1. Only a OFTEC-trained and registered engineer
can carry out commissioning and service work.
2. Electrical safety checks should be carried out
by a qualified electrical engineer.
3. It is the responsibility of the installer to ensure
proper commissioning is carried out.
4. It is a requirement of the guarantee and any
extended warranty that an annual service is
carried out.
5. The system water must always be protected by
a corrosion inhibitor.

TRIANCO
CUSTOMER AFTER SALES SERVICE INFORMATION
SERVICE CENTRE AND TECHNICAL SUPPORT
Tel: [phone] Fax: [phone]
Hours of business Monday to Thursday 8.30am - 5.00pm
Friday 8.30am - 2.30pm
3
Astep by step guide to reporting a fault
with your appliance
Aqualified 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).
Acharge 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.
PLEASE NOTE:
Unauthorised invoices for attendance and repair work
carried out on this appliance by any third party will not be
accepted by Trianco.
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 will apply if
the fault is not covered by the appliance
guarantee (payment will be requested on site by
our independent Service Agent).
Note: Before contacting Trianco, please have the
following information ready:
1) Boiler serial number or your customer ID
number (issued upon registration of the boiler
with Trianco).
2) Date of appliance installation.
Boiler Serial Number:
Cust ID Number:
Installation Date:

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
Trianco EuroStar boilers are supplied with the burner set
for Kerosene C2 to BS 2869 fuel to meet the Building
Regulation requirements for low level flue discharge. It is
recommended this fuel is also used when the boiler is
connected to a conventional chimney because of the
clean burning characteristics of Kerosene.
Balanced Flue Kits
The boilers are supplied suitably equipped for connection
to a conventional chimney, but can readily be converted
into a room-sealed balanced flue appliance by using a
Trianco balanced flue kit. These kits allow the boiler to be
installed in a wide variety of site conditions. (see
balanced flue kit details).
Flushing and Water Treatment
The performance of the appliance could be impaired by
system debris or the effects of corrosion. New systems
must be thoroughly flushed to remove metal filings,
solder, machining oils and any other fluxes or greases
before connecting the boiler.
When fitting the appliance to an existing system, it is
advisable to clean the system by using an appropriate
flushing and descaling agent. Refer to BS 7593 (1992) for
guidance.
System additives - corrosion inhibitors and all flushing
agents/descalers should be suitable for steel boilers and
comply with BS 7593 requirements.
Always refer to the manufacturers’ instructions.
Failure to flush and add inhibitors to the system will
invalidate the appliance warranty.
The appliance is designed to be fitted to fully-pumped
systems only. Failure to do so will invalidate the
warranty.
The boiler must not be run without water in the
system.
2. INTRODUCTION
Trianco boilers have been designed to conform to
European Directive/Standards BED 92/42 EEC LVD
73/23/EEC EMC 89/336/EEC..
The boiler design incorporates a secondary stainless
steel heat exchanger, which recovers heat from the flue
gasses that would normally be lost when using
conventional oil fired boilers.
The matched pressure jet burner which is exceptionally
quiet in operation, ensures clean and efficient
combustion with low NOxemissions
When installed in conjunction with a Trianco balanced
flue kit, the boiler becomes a room-sealed appliance. As
such, it is ideal for installation in a garage.
The EuroStar boilers are suitable for all normal open
vented central heating and indirect hot water systems
and 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 system.
To ensure the boiler is operating at its maximum efficiency,
the central heating return temperature should be 50°C or
above.
Maximum performance will be achieved by maintaining a
differential of 20°-30°C between the flow and return
temperatures.
All servicing can be carried out from the front, allowing
the boiler to be fitted under a kitchen work top if required.
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 incorporates
all necessary safety controls to ensure safe and reliable
operation.

Fig. 3 OUTLINE DIMENSIONS
A850 895
B460 460
C600 688
D85 85
E 745 791
F528 573
G325 371
H56 60
J9696
K11 11
5
3. TECHNICAL INFORMATION
ALL DIMENSIONS IN MM
ALL UNUSED TAPPINGS ARE
TO BE PLUGGED OFF
OIL PIPE OR ELECTRIC
CABLE ENTRY BOTH SIDES
RETURN CONNECTION
DIA 22MM
EACH SIDE
FLOW CONNECTION
DIA 22MM
EACH SIDE
Heating
Return
Cleaning
Hole Cleaning Hole
Heating
Return
Heating
Flow
Condensate
drain
Heating
Flow
Tee Elbow
Condensate
drain
View of rear of boiler with back panel
removed showing boiler connections
Connections can be made on L/H side
or R/H side of boiler
Fig. 4
A
C
B
D
K
H
E
J
F
G
50/90 100/125

6
TECHNICAL SPECIFICATION
Boiler
Eurostar Premier
50/90
Eurostar Premier
100/125
Model Output
(non-condensing)
50,000 btu’s
14.65 kW 53,400 btu’s 15.65 kW 52,700 btu’s 15.42 kW 0.45 x 80°EH 120 12.0
0.5 x 80°EH 140 12.5
0.6 x 80°EH 125 12.5-13.0
0.65 x 80°EH 130 13.0
0.75 x 80°EH 125 13.0-13.5
1.0 x 80°EH 100 12.0
1.1 x 80°EH 105 11.5
1.1 x 80°EH 110 12.5
1.1 x 80°EH 115 12.5
64,000 btu’s
18.74 kW 63,000 btu’s 18.46 kW
74,400 btu’s
21.8 kW 73,300 btu’s 21.48 kW
84,800 btu’s
24.85 kW 83,600 btu’s 24.49 kW
95,200 btu’s
27.49 kW 93,800 btu’s 27.49 kW
104,700 btu’s
30.69 kW 104,700 btu’s 30.69 kW
115,000 btu’s
33.76 kW 115,200 btu’s 33.76 kW
125,000 btu’s
36.84 kW 125,700 btu’s 36.84 kW
130,900 btu’s
36.36 kW 130,900 btu’s 36.36 kW
60,000 btu’s
17.58 kW
70,000 btu’s
20.51 kW
80,000 btu’s
23.44 kW
90,000 btu’s
26.37 kW
100,000 btu’s
29.3 kW
110,000 btu’s
32.2 kW
120,000 btu’s
35.2 kW
125,000 btu’s
36.6 kW
Output
(Condensing) Input Nozzle Pump
Pressure (psi) Co2(%)
Control Thermostat - adjustable up to 82° C
Limit Thermostat - factory set at 110° C (hand reset)
Casing Finish - white with grey fascia trim
Thermal Insulation - boiler shell insulated with glass fibre
Optional Extras - Trianco balanced flue kits
- programmer kit (Trianco part code 2340)
Electricity Supply - 230/280V - 50Hz Fused at 5 amp.
Boiler Models
Weight (empty)
Water Content
Flow & Return Connections
Flue Socket Diameter
Max. Operating Pressure
Test Pressure
Water Side Resistance
10 diff
20 diff
Starting Current
Running Current
Kg
litres
-
in.
bar
psi
bar
psi
mbar
mbar
amp
amp
50/90
140
26
25
8.3
100/125
170
32
25.4
8.2
22mm Compression
4
3
43.5
4.5
65.3
3.5
0.77

FIG. 5 WIRING DIAGRAM
7

8
FIG. 6 AIR SUPPLY & VENTILATION
FOR CONVENTIONAL FLUE BOILERS
BOILER COMPARTMENT
VENTILATED FROM ADJOINING ROOM
BOILER COMPARTMENT
VENTILATED FROM OUTSIDE
BOILER IN ROOM
Clearance and Service Access
When siting the boiler, ensure adequate clearance is
allowed for making water and flue connections. As the
boiler can be fully serviced from the front, there is no
need for a headroom allowance nor provision for removal
of the kitchen work top but a clearance of at least 750mm
is required at the front of the boiler.
Hearth
The boiler must be fitted on a non-combustible base.Also
the floor must be level and capable of supporting the
installed weight of the boiler, including its water content.
Combustion and Ventilation 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 air opening should be positioned so as to cause the
least possible draught to the occupants and located so it
is not liable to be accidentally blocked.
British Standard Code of Practice for Oil Firing BS 5410:
Part 1 requires a permanent air inlet opening of 550mm2
per kW of boiler rated output.
See Fig. 6 for air openings required for Trianco EuroStar
boilers.
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. OFST 100 and OFST 200.
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, it is recommended that the
appliance is installed, commissioned and maintained by
an OFTEC registered technician.
Auseful guide to ‘Safe Working Practices for Oil Firing
Technicians’ is published by OFTEC.
Electrical work should be carried out in accordance
with BS 7671:2001 by a qualified electrical engineer.
Siting the Boiler
Sound Levels
Whilst the low sound level of the Trianco EuroStar boiler
makes it eminently suitable for kitchen and utility room
installation, the following aspects should be considered
before installation:
(a) Some people are particularly sensitive to even low
noise levels so this aspect should be discussed with
the householder.
(b) Small rooms tend to amplify noise, particularly if the
wall construction is hollow or the surface tiled.
(c) A chimney passing through a bedroom can some
times transmit noise.
(d) Low level flue terminals produce some exhaust
noise, so care should be taken when siting adjacent
to neighbouring property.
(e) Due to the condensing nature of the boiler, a plume
of water vapour will be discharged from the flue. This
should be taken into account when siting the flue
terminal. Refer to section on flue systems.
System Design
When operating your Trianco condensing boiler, the heating
system should be designed to the following parameters to
achieve the maximum system efficiencies.
For central heating systems using radiators
Boiler flow temp 70°C to 90°C
Boiler return temp 50°C to 70°C
Flow differential temp 10°C to 30°C

9
BOILER COMPARTMENT VENTILATED FROM OUTSIDE
FIG. 7 VENTILATION FOR ROOM
SEALED BALANCED FLUE
BOILERS IN A COMPARTMENT
BOILER COMPARTMENT
VENTILATED FROM ADJOINING ROOM
“A”=
Min. FREE
Area of Opening
(See table above)
NOTE:
Ensure this
adjoining room
has an adequate
air supply.
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.
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. 5.
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.
Ventilation (Room sealed balanced flue boilers)
Although no openings are required for the supply of
combustion air (this comes from outside through the air
duct system direct to the burner), ventilation is, however,
necessary if the boiler is installed in a compartment or a
confined space in order to prevent overheating of the
boiler controls (See Fig. 7 for ventilation openings).
FIXING OF STRAIN
RELIEF BUSHES
Fig. 8
Output Detail ‘A’ (Figs 6 & 7)
50,000 btu/h 105cm2
90,000 btu/h 145cm2
100,000 btu/h 161cm2
125,000 btu/h 202cm2
Extractor Fan (conventional flue only)
If the boiler room has an extractor fan, the combustion
performance of the appliance must not be affected when
the fan is running and all doors and windows are closed.
Aflue gas check on the CO2% and smoke number should
be carried out to prove that combustion is satisfactory.
The exact rate of the fan must not exceed 40
litres/sec.
Heating and Domestic Hot Water Systems
The heating system should be installed in accordance
with current HVCACodes of Practice and BS 5449 Part 1
‘Forced Circulation Hot Water Systems’.
Flow and return water connections can be made to the
boiler by using the tapings on the left or right hand side of
the boiler.
Fit drain-off cock in the lowest part of the system.

10
Condense Drain Connections
The condensate pipe can be run to either the left or the
right side of the boiler.
To install the condensate pipe, after deciding the position
of the trap, remove the back panel from the boiler. A set
of plastic push-fit connections is supplied with the boiler.
Cut 2 x pieces of plastic pipe to 175mm long and insert
one into each of the plastic straight connectors which are
fitted to the drain connections on the rear underside of
the condensing unit. Fit the tee fitting onto the end of the
pipe nearest the side where the drain will leave the boiler.
Fit the elbow onto the end of the other pipe and connect
this to the tee using a piece of pipe cut to 165mm long
(refer to figs 4 & 10 for details).
Use a further piece of pipe to pass through the side
casing and join up the pipework via the tee.
Cut the pipe protruding through the side casing to the
length required and fit the elbow to the end of the pipe.
Measure distance required for the elbow to the trap, cut
the pipe to length, and fit. Re-fit the back panel and move
the boiler into position.
Where possible, connect the condensate drain to an
external waste drain.
If the boiler is to be fitted in a position where the external
ground level is higher than the boiler, and there are no
internal drains, a condensate pump can be fitted (refer to
pump manufacturer’ instructions).
The drain pipe must be installed to allow the condensate
to drain naturally for the boiler on a minimum fall of 1:20.
The pipework form the condensate trap to the
external drain is not supplier with the boiler.
IMPORTANT NOTES:
When running any external pipework from the trap to the
drain, it is essential that the pipework is kept to a minimum
and is insulated to prevent the condense form freezing.
Fig. 9
22 MM PLASTIC
PIPE FROM
BOILER
BOILER
DRAIN OR
PURPOSE MADE
CONDENSATE
SOAK AWAY
CONDENSATE
TRAP
IMPORTANT
CONDENSATE MUST DRAIN
NATURALLY FROM BOILER.
THE CONDENSATE TRAP MUST
BE SECURED IN POSITION.
Ensure that the trap is in accessible position for any
future servicing and maintenance to take place. Before
initial firing, the condensate trap must be filled with water
to prevent the escape of flue gases.
MAINTENANCE:
The trap should be inspected at regular intervals to
ensure correct operation, and should be checked as part
of the regular annual schedule.
The 2 x screws at the rear of the top face of the boiler can
be removed to give access for cleaning the drain holes in
the condensing unit.

11
5. OIL SUPPLY
Oil
The oil burner is factory set to burn Kerosene C2 to BS 2869.
Note: Only Kerosene is permitted for use on this appliance.
IMPORTANT NOTE:
The oil storage tank and supply pipe must be installed by
an OFTEC-trained and registered engineer.
Oil Storage Tanks
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.
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:
1Where 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.
3The 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.
3The 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
Along life flexible oil hose is supplied with the boiler, a
filter and shut-off valve are required. These should be
fitted as shown in Figs. 11,12 & 13.
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 outside
the building.
Fire Valve
Afire-valve must be fitted in the oil line outside the
building with its sensing phial positioned within the boiler
casing above the level of the burner. Aclip 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. 11 )
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.

12
Two pipe oil supply (Fig. 12)
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 to remove
bypass washer from the oil pump on the burner. Refer to
burner details leaflet for removal instructions.
An additional flexible hose is also required.
Aspring loaded non- return valve must be fitted in the
suction line to stop the oil running back to the tank.
Afilter, 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. 13)
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
small horseshoe washer must be removed for a two pipe
system (see burner details).
The Oil De-aerator which should be fitted close to but not
inside the building, is available from most Builders
Merchants and some Oil Tank manufacturers.

FIG. 11 SINGLE PIPE OIL SUPPLY INSTALLATION
FIG. 12 TWO PIPE OIL SUPPLY INSTALLATION
13
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 ‘H’ 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)

14
FIG. 13 DE-AERATED OIL SUPPLY INSTALLATION
REFER TO MANUFACTURERS INSTRUCTIONS FOR ‘OIL DE-AERATOR’ INSTALLATION DETAILS
REMOTE OPERATED FIRE VALVE
OIL FILTER
•
•

6. FLUE SYSTEMS
To evacuate the products of combustion safely and
thoroughly, the boiler must have an efficient flue system.
Under no circumstances should the boiler be installed
using an existing flue system.
All components used in the flue system should be suitable
for wet flues. The design and construction of the Trianco
balanced flue kits take these factors into account so the
following guidance notes are for conventional chimneys.
Reference should also be made to BS 5410 Part 1 if further
information is required on conventional chimneys.
Conventional chimney (Fig. 14)
Trianco condensing boilers operate at high efficiencies
with low flue gas temperatures. The flue system used on
this boiler must be suitable for low flue gas temperatures
and condensation.
1 The chimney should rise as vertically as possible and
terminate at a point not subject to down draughts or
wind effects.
2 The condensation produced in the flue system can be
allowed to run back in to the boiler. No separate drain
at the base of the flue system is required
3 Where an existing chimney is to be used it must be lined
with a stainless steel liner that is approved for use on
an oil fired condensing boiler. Note: Before fitting a flue
liner the chimney must be thoroughly cleaned free
from all traces of soot and scale.
4 If a rigid flue is to be fitted externally a twin wall flue
must be used. The flue must be constructed with a
stainless steel inner skin (suitable for condensation),
insulation and incorporate seals and be weather proofed.
5 The internal flue diameter must be 100 mm (4 in)
minimum.
6 The flue pipe between the boiler and the chimney must
be manufactured from 316 stainless steel or higher.
Aluminum or plastic must not be used on any part of the
flue system.
7 The in-built flue gas resistance of the Eurostar is such
that it allows the boiler to operate reliably over the wide
range of chimney draughts encountered from typical
domestic chimneys. Under normal draught conditions,
the flue should terminate with a standard cowl.
IMPORTANT
Ensure that all the joints on the flue system are sealed
and that no condense can escape.
15
FIG.14

INSTALLATION NOTES
(a) Balanced-flue condensing boilers are designed
to operate at low noise levels. During operation,
a plume of condensation will be produced at
certain times from the terminal. When positioning,
these factors should be taken into consideration
to ensure that they do not cause a nuisance to
neighbouring properties. It should also be
positioned to avoid the products of combustion
from entering the building.
(b) Keep the terminal clear of infrared sensing
devices such as these used to control security
lighting.
(c) Positioning of flues under balconies and carports
should be avoided.
(d) As the system operates under positive pressure,
it is essential that all flue joints are sealed correctly.
(e) Only 28 sec. Kerosene Class C2 to BS 2869 is
permitted for use with this appliance.
Note Trianco balanced flue kits have been designed
exclusively for use with Trianco boilers and as such,
compatibility with other makes of boiler cannot be
guaranteed.
Balanced Flue Systems
(optional extra)
The Trianco balanced flue system offers much greater
flexibility for siting, the boiler compared with a
conventional chimney. The only requirement is for a
suitable outside wall to fit the horizontal discharge
terminal or, alternatively, a single storey roof for a vertical
discharge.
In addition to the siting benefit, the performance of
balanced flue boilers is virtually unaffected by high wind
conditions since the wind pressures are applied equally
to both air intake and flue gas discharge, thus creating a
balanced condition.
Whereas some balanced flue boilers rely on case sealing
to achieve a room seal, Trianco boilers have a sealed air
duct system which maintains the room sealed
performance even when the casing door is removed for
burner commissioning or adjustments.
The use of the balanced flue principle also enhances the
overall thermal efficiency of the boiler since the incoming
air extracts waste heat from the flue and returns it as
pre-heated air to the burner where it aids combustion.
16
P
O
N
C. D
B
A
E
G
K
FFL
H. J
H
MB
Note (1) The terminal should be positioned so as to avoid
products of combustion entering the building.
Note (2) If the terminal is less than 2 metres above the
ground level, balcony or place to which any
person has access, the terminal must be
protected by a guard.
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. 13 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
ADirectly 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 75
D Below a gutter or balcony without protection 600
EFrom vertical sanitary pipework (*600) 300
FFrom an internal or external corner (*600) 300
GAbove ground or balcony level (*600) 300
HFrom a surface or boundary facing the terminal 600
JFrom a terminal facing the terminal 1200
KVertically from a terminal on the same wall 1500
LHorizontally from a terminal on the same wall 750
MAbove the highest point of an intersection with the roof 600
NFrom a vertical structure on the side of the terminal 750
OAbove a vertical structure less than 750mm from the side of the terminal 600
PFrom a ridge terminal to a vertical structure on the roof 1500
*Scotland 1990

IMPORTANT: TO AID ASSEMBLY, IT IS NECESSARY
TO APPLY A THIN BEAD OF LUBRICANT (E.G.
WASHING - UP LIQUID OR VASELINE) TO ALL FLUE
JOINTS THAT INCORPORATE ‘O’- RING SEALS.
AS THE FLUE SYSTEM OPERATES UNDER
POSITIVE PRESSURE, ALL FLUE JOINTS THAT DO
NOT INCORPORATE ‘O’- RING SEALS SHOULD BE
SEALED WITH SILICONE SEALANT.
THE BOILER PRODUCES CONDENSATE DURING
NORMAL RUNNING, IT IS IMPORTANT TO ENSURE
ALL SEALS ARE MADE AND CORRECT GASKETS
USED.
TO ENSURE ANY CONDENSE PRODUCED IN THE
FLUE DRAINS AWAY INCLINE THE FLUE SLIGHTLY
FROM THE BOILER
TERMINAL GUARDS (Fig. 16)
When the terminal is positioned where there is the
possibility of accidental contact by persons, or of
damage to the terminal, an approved guard is necessary.
Generally, exhaust 2 metres above ground level
alleviates the necessity for a guard.
IMPORTANT: A suitable stainless steel or approved
plastic-coated terminal guard should always be used. A
suitable terminal guard is available from Trianco.
17
267mm
343mm
300mm
All sizes in mm approximate.
2350 & 2351 HORIZONTAL TELESCOPIC BF
ROUND KIT
ASSEMBLY METHOD
1. Having decided the position of the boiler, accurately
mark out the position of the terminal and cut a hole
130mm diameter through the wall. (See Figs. 17/18
and 19).
2. Unpack the boiler.
3. Lift off the top panel.
4. Remove the four nuts securing the flue socket in
place.
5. Take flue socket plate off the top of boiler leaving the
flue gasket in position.
6. If the flue is to be fitted terminating to the left or right
hand side of the boiler, the corresponding section of
side casing must be removed.
7. To remove the section of side casing, cut through the
retaining tabs.
8. Fit sealing plate over four studs leaving the flue gasket
in position and place terminal gasket on top of sealing
plate. Both these gaskets are supplied with boiler.
9. Position the boiler.
10. Unpack the Terminal Kit and identify all components.
11. Check to see that the O-ring is in location groove on
the inner flue pipe of elbow duct assembly. Applying
a small amount of lubricant i.e. vaseline to O-ring will
aid assembly.
12. Assemble kit together by sliding flue terminal inside
terminal elbow duct assembly.
13. Slide completed assembly through the wall from inside.
14. Move boiler in position and holding up terminal mounting
flange, slide terminal back between fixing studs on
boiler.
15. Slide terminal mounting plate down over studs and
secure using the four nuts previously removed.
16. Adjust terminal length to give a minimum distance of
140mm from end of terminal to wall.
17. Connect hose from burner to socket on end of terminal
using clip provided.
18. Make good the inside and outside wall around the flue
(ie cement or suitable filler).
19. Replace top panel.
Trianco flue kits are designed to incorporate the latest ‘O’-ring seals.
Before commencing assembly, please make sure that all ‘O’-rings seals are in position.
FIG.16