Grant EFCON5090IND User manual

IRL | DOC 0023 | Rev 02.00 | October 2022
Grant Euroflame Condensing
Internal Condensing Oil Boiler
Range
User Instructions

IMPORTANT NOTE FOR USERS
These user instructions are intended to guide the user in the
operation of the Grant Euroflame oil boiler.
A separate manual is available to guide installers on the
installation, commissioning and servicing of the Grant Euroflame
oil boiler.
SPECIAL TEXT FORMATS
The following special text formats are used in these instructions
for the purposes listed below:
! WARNING !
Warning of possible human injury as a consequence of not
following the instructions in the warning.
! CAUTION !
Caution concerning likely damage to equipment or tools
as a consequence of not following the instructions in the
caution.
! NOTE !
Used for emphasis or information not directly concerned
with the surrounding text but of importance to the reader.
PRODUCT CODES COVERED
These instructions cover the following product codes:
Product code Product Description
EFCON5090IND Grant Euroflame Indoor 15-26
EFCON90120IND Grant Euroflame Indoor 26-35
Page 2
SERVICING
The boiler should be serviced at least every twelve months and
the details entered in the Service Log in this user handbook.
FUEL TYPE
All Grant Euroflame boilers are suitable for use with Class C2
Kerosene.
The use of Class D Gas Oil on all Grant Vortex Low NOx and Blue
Flame boilers DOES NOT comply with ErP requirements or EU
regulations, and as a result Grant does not condone its use.
If your boiler uses Bio-Kerosene (B30K), refer to the installation
and servicing instructions.
! NOTE !
This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given
supervision or instruction concerning
use of the appliance in a safe way and
understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not
be made by children without supervision.
This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued product improvement.
However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (Ireland) ULC, the
author or others involved in its publication.
All good sold are subject to our official Conditions of Sale, a copy of which may be obtained on application.
© Grant Engineering (Ireland) ULC No part of this manual may be reproduced by any means without prior written consent.
GRANT ENGINEERING (IRELAND) ULC
Crinkle, Birr, Co Offaly
R42 D788, Ireland
www.grant.eu
Email: [email protected]
Tel:[phone]

Contents Page 3
CONTENTS
1 INTRODUCTION 4
1.1 About your boiler 4
1.2 Boiler controls access 4
1.3 What the installer should leave
you with 4
1.4 Commissioning 4
1.5 Activating the guarantee 4
1.6 Boiler servicing 4
1.7 Boiler data plate 4
2 USING YOUR BOILER 5
2.1 Lighting your boiler 5
2.2 If your boiler fails to light 5
2.3 Turning offyour boiler 5
2.4 About your fuel 5
2.5 Boiler controls 5
2.6 Heating system controls 6
2.7 Electricity supply 6
3 CARING FOR YOUR BOILER 6
3.1 Checking sealed system pressure 6
3.2 How to fill or top up your
sealed system 7
3.3 Expansion vessel 7
3.4 Ventilation 7
3.5 Flue terminal and
condensate disposal 7
3.6 Frost protection 8
3.7 Failure of electricity supply 8
3.8 Cleaning your boiler 8
4 AFTER SALES SUPPORT 8
5 SERVICE LOG 9
NOTES 11

Section 1: IntroductionPage 4
1 INTRODUCTION
1.1 ABOUT YOUR BOILER
The boiler is fully automatic once switched on, providing central
heating (and also domestic hot water if you have a hot water
cylinder fitted).
Kitchen/Utility boilers have a ‘mains on’ neon, see Figure 2-1,
which lights when the boiler is switched on.
! NOTE !
The ‘mains on’ neon light does not necessarily indicate the
burner is firing.
If your boiler is connected to a programmer, it will provide hot
water and central heating during the time periods set on the
programmer.
1.2 BOILER CONTROLS ACCESS
To gain access to the boiler controls, pull the front panel forward
at the top to disengage the fixing clips, then lift it up and offthe
boiler, as shown in Figure 1-1.
1.3 WHAT THE INSTALLER SHOULD
LEAVE YOU WITH
A Boiler Passport that your installer will have completed and you
will have signed. You will retain the Passport, and the top copy will
be returned to grant Engineering, to activate the warranty.
• The boiler installation and servicing instructions
• This user handbook
The installer should have advised you how to operate the boiler
and controls, and whether the boiler operates as part of a sealed
system or an open vented system.
If the boiler operates as part of a sealed system, the installer
should have shown you how to check and top up the heating
system should your system pressure drop. Also see Sections 3.1
and 3.2.
1.4 COMMISSIONING
Following installation, your boiler should be commissioned by a
compentant person, such as an OFTEC registered engineer, to
validate the guarantee.
During the commissioning process, your boiler will be set to its
optimum efficiency using specialist flue gas analysis equipment.
Your installer should arrange for this to be carried out.
If required, Grant can provide details of OFTEC registered
commissioning engineers in your area.
1.5 ACTIVATING THE GUARANTEE
In order for your boiler’s full* guarantee to be activated, your boiler
must be registered with Grant within 30 days of its installation.
To register your boiler, please ensure the completed boiler
passport is returned to Grant or visit the Grant website:
www.grant.eu
Your installer may have registered the boiler on your behalf and
provided you with the relevant documentation.
*If registered within 30 days, your boiler will have a 5 year
guarantee on the boiler shell and 1 year on the burner and other
components.
Please refer to the boiler installation and servicing instructions for
the full terms of the manufacturer’s guarantee.
1.6 BOILER SERVICING
Your boiler must be serviced every 12 months from the date of
installation to maintain the guarantee, for the entire duration of the
guarantee.
The nozzle and braided oil hose should be replaced annually.
If the boiler is part of a sealed system, the air pressure charge
of any expansion vessels fitted to the system must be checked
annually.
Please make sure that your installer has recorded the service
information in the Service Log at the back of these user
instructions. Should you ever need to utilise the product
guarantee, you will be asked to provide the service history of the
boiler.
1.7 BOILER DATA PLATE
Your boiler is fitted with a data plate, which shows any engineers
who come to service or repair your boiler some basic information
they may need to know in order to carry out their required works.
The data plate also contains the boiler serial number, which is
required by Grant when registering the boiler.
This data plate can be found inside the boiler casing by removing
the front casing panel (see Section 1.2), and looking on the inside
of either the left or right hand casing panel (depending on model).
! WARNING !
Interference with the boiler (or any sealed component) is
strictly forbidden, other than where information is given in
these user instructions.
Incorrect use of the boiler can result in danger to the user
and will invalidate the guarantee.
OVERHEAT
RESET
TEMPERA
TUR E
ON
BO
ILER
OFF
Burner Lock-Out button
Front panel removed (pull forward at top, then lift off)
Front panel fixing clips
Front panel bottom locating tags
GRANT
Boiler Control
Panel (Utility
model shown)
Figure 1-1: Boiler components

Page 5
2 USING YOUR
BOILER
2.1 LIGHTING YOUR BOILER
The lighting procedure is:
1. Ensure that:
a) There is sufficient fuel, of the correct type, in the
supply tank and that all fuel supply valves are open.
b) The water supply is on.
c) The electricity supply to the boiler is OFF.
d) The boiler On/Offswitch is set to OFF.
e) The room thermostat (if fitted) is at the desired setting.
f) The boiler thermostat is set to the required setting.
2. Switch the electricity supply to the boiler ON.
3. Set the boiler On/Offswitch to ON.
If fitted, set the programmer to ON (either central heating
(CH) or hot water (HW)).
4. The boiler will now light automatically.
5. If a programmer is fitted, refer to the instructions supplied
with the programmer and set the CH and HW functions to
TIMED.
The boiler will now operate during the ‘on’ periods set on the
programmer.
2.2 IF YOUR BOILER FAILS TO LIGHT
Make the following checks:
1. Check that the boiler On/Offswitch is set to ON.
2. Check that the programmer (if fitted) is working and is set to
ON (CH or HW).
3. Check that all thermostats are set to the desired setting and
are calling for heat.
4. Check if the burner ‘Lock-Out’ reset button on the burner
body (refer to Figure 1-1 for location) is lit.
If it is, press it to start the burner.
If the burner fails to light and goes to ‘Lock-Out’ again, check
that you have sufficient fuel in the storage tank and that the
fuel supply valve is open.
5. Check that the fire valve in the oil supply line has not tripped.
6. Ensure that a fuse has not blown or that the electricity supply
has not failed.
7. Check to see if the overheat thermostat has operated (see
Section 2.5).
If the burner still fails to light after carrying out these checks then
a fault exists or the fuel supply is low. If you have sufficient fuel,
switch offthe electricity supply to the boiler and contact your
service engineer.
2.3 TURNING OFF YOUR BOILER
To turn offyour boiler:
• For short periods-
Set the On/Offswitch to OFF.
To restart, simply set the switch to On.
• For long periods-
Set the On/Offswitch to OFF and switch offthe electricity
supply to the boiler. If required, the fuel supply valve may be
closed and the water and electricity supplies turned offat the
mains.
To restart, refer to Section 2.1 (Lighting your Boiler).
2.4 ABOUT YOUR FUEL
Grant Euroflame boilers only operate on Class C2 Kerosene to
BS 2869:1998.
You should always quote this type of fuel when ordering from your
supplier.
Do not wait until the fuel runs out before you order some more
as sludge in the bottom of the tank may be drawn into the fuel
lines. If it is possible, switch offthe boiler when the new supply is
delivered and leave the fuel to settle for an hour before restarting
the boiler.
2.5 BOILER CONTROLS
BOILER THERMOSTAT
This dial, located on the boiler control panel, allows the
temperature of the water leaving the boiler to heat the radiators
(and/or other heat emmiters if fitted) and domestic hot water to be
adjusted.
Refer to Figure 1-1 for the location of the control panel within the
boiler casing and Figure 2-1 for the details of the control panel.
! NOTE !
If you have a cylinder thermostat on your hot water
cylinder, this will control the temperature of your domestic
hot water.
The boiler thermostat setting must be equal to or greater
than the cylinder thermostat setting to enable the cylinder
thermostat to control the domestic hot water system.
OVERHEAT THERMOSTAT
Your boiler is fitted with a safety overheat thermostat which
will automatically switch offthe boiler in the case of a control
malfunction causing overheating.
If your boiler goes offand you try to light it but nothing happens
and the ‘Lock-Out’ reset button on the burner is not lit, the
overheat thermostat has probably operated. The boiler will not
light until the overheat thermostat is reset.
To reset the overheat thermostat, unscrew the small plastic cap
marked “reset” (see Figure 2-1), press the button and replace the
cap.
If this condition continually repeats, contact your service engineer.
Figure 2-1: Euroflame Condensing Utility boiler control panel
Section 2: Using your Boiler

Page 6
2.6 HEATING SYSTEM CONTROLS
PROGRAMMER (IF FITTED)
If a programmer is fitted, it will control the times that the boiler
heats the central heating system and hot water cylinder (if fitted).
Refer to the manufacturer’s instructions supplied with your
programmer for further details.
ROOM THERMOSTAT
This thermostat allows you to control the room temperature at
which the boiler will fire to provide central heating to your property.
The room thermostat is usually located in a downstairs area such
as a hallway or living area.
If your heating system is ‘zoned’ you will have more than one
room thermostat, with each thermostat controlling the temperature
of a separate heating zone.
! NOTE !
For your boiler to operate to provide you with heating,
the programmer (or timer) must be in an ‘ON’ period for
heating AND the room thermostat must be ‘calling’ for heat.
CYLINDER THERMOSTAT
This thermostat controls the temperature of the water in your hot
water cylinder (if fitted), as long as your cylinder is being heated
by the boiler.
When the water temperature in the cylinder is below the
thermostat set temperature, it will ‘call’ for the boiler to operate to
heat your hot water.
! NOTE !
For your boiler to operate to provide heat to your hot water
cylinder, the programmer (or timer) must be in an ‘ON’
period for hot water AND the cylinder thermostat must be
‘calling’ for heat.
THERMOSTATIC RADIATOR VALVES
Your heating system may also include Thermostatic Radiator
Valves (or TRVs). If you have them, they will be fitted on some or
all of your heating system radiators.
A TRV is a self-regulating valve, i.e. not connected to the
other heating system controls, such as a programmer or room
thermostat, and is designed to regulate the temperature in the
room in which it is situated.
A TRV senses the air temperature around it and controls the
water flow to the radiator on which it is fitted to regulate its heat
output to the room. The head of the TRV can be rotated to set it to
give the required room temperature. Once correctly set, it should
ideally be left in that position and not used as an on/offcontrol for
the radiator.
As the correct operation of a TRV is based on it sensing the air
temperature of the room it is fitted in, take care not to cover the
TRV head (with curtains, furniture etc).
Refer to the manufacturer’s instructions supplied with any TRVs
fitted to your heating system for further details.
2.7 ELECTRICITY SUPPLY
The boiler requires a 230/240 V AC 50 Hz supply. It must be
protected by a 5 Amp fuse.
! WARNING !
The electrical connections to the boiler must be earthed.
3 CARING FOR YOUR
BOILER
3.1 CHECKING SEALED SYSTEM PRESSURE
If your boiler is operating on a sealed system, your installer will
have pressurised the system and should have told you (or set
it on the pressure gauge*) the system pressure when cold. This
pressure is normally between 0.5 and 1.0 bar, which will increase
slightly when the system is hot.
*Your installer should have shown you where the system pressure
gauge is located.
Figure 3-1: Pressure gauge during normal boiler operation
You should frequently check that the system pressure is correct.
If the pressure (when the heating system is cold) is below the set
pressure mentioned above, you can re-pressurise the system by
following the instructions given in Section 3.2.
If the system requires re-pressurising frequently, ask your installer
or service engineer to check the heating system for leaks and to
check the expansion vessel air charge.
AIR VENTS
The boiler and/or system will be fitted with an air vent to remove
air from the system.
Any air trapped in the radiators should be removed by venting the
radiators using the vent screw at the top of each radiator. Only
vent a radiator if the top is cool and the bottom is hot. Excessive
venting will reduce the system pressure, so only vent when
necessary and check the system pressure as mentioned above.
Re-pressurise the system if necessary.
PRESSURE RELIEF (SAFETY) VALVE
The sealed system is fitted with a safety valve to release excess
pressure from the system. If water or steam is emitted from the
safety valve discharge pipe, switch offthe boiler and contact your
installer or service engineer immediately.
0
1
2
3
4
Normal Operating
Pressure** Range
**This is the
pressure inside
the heating
system while the
system is hot.
Section 2: Using your Boiler & Section 3: Caring for your Boiler

Page 7
3.2 HOW TO FILL OR TOP UP YOUR
SEALED SYSTEM
(filling loop)
Figure 3-2: Sealed system filling loop arrangement
To fill or top up your heating system, proceed as follows:
1. Check the boiler and circulating pump are switched offand
any air vents on the system are open.
2. Connect the filling loop* between the two filling valves.
3. Open the filling valve on the mains water end of the filling
loop (the valve is open when the operating lever is in line with
the valve).
4. Open the filling valve on the heating end of the filling loop to
allow water to flow into the heating system (the valve is open
when the operating lever is in line with the valve).
5. When the pressure gauge shows the required cold system
pressure (refer to Section 3.1) close the filling valve on the
heating system.
6. Vent each radiator to remove any air that may be trapped
in them. Start with the lowest radiator in the system, i.e
downstairs.
7. Locate the circulating pump(s) and vent the pump(s) by
following the manufacturer’s instructions.
8. Now, check the system pressure on the system pressure
gauge. If necessary, re-open the filling valve on the system
until the gauge shows the required pressure. Take care not
to over-fill!
9. Finally, close both filling valves and disconnect the filling loop
at one end only. Take care, as the filling loop may contain
water!
*If you cannot locate the filling loop, please contact your installer.
! NOTE !
If the system has been drained down or requires frequent
topping up, then the level of inhibitor and/or anti-freeze will
need to be checked by your installer.
! WARNING !
Only add water to the system when the system is cold and
the boiler is switched off.
Do not overfill
3.3 EXPANSION VESSEL
The expansion vessel should be checked annually, as part of your
annual service, to ensure that there is a 1.0 bar air charge in the
vessel. Failure to do this will invalidate the boiler guarantee. Refer
to Section 1.6 for further details regarding servicing.
! NOTE !
The pressure gauge on the system does not show the air
charge pressure in the expansion vessel.
! NOTE !
In order to properly care for your Grant boiler, an annual
service by a compentant person should always be
undertaken.
3.4 VENTILATION
Unless your boiler is installed with a balanced flue system*, you
will require ventilation openings in your property to provide your
boiler with a fresh supply of air in order for it to fire.
Any ventilation openings in the property provided by the installer
must not be obstructed.
You should periodically check that they are clear.
Do not attempt to ‘box in’ the boiler or build a compartment around
it before contacting your installer.
Do not place any combustible material around or on the boiler or
flue pipe.
*Balanced flue systems have an air intake system incorporated
into their design, and provide the boiler with fresh air. This
removes the need to have ventilation openings installed in your
property for this purpose.
3.5 FLUE TERMINAL AND
CONDENSATE DISPOSAL
FLUE TERMINAL
If your boiler flue system has a terminal on the outside wall, make
sure that the terminal is not damaged or obstructed in any way.
A wire mesh guard is required to cover the terminal if the terminal
is less than 2 metres above ground level. If you think one is
required, contact your installer.
You should periodically check for and remove any obstructions,
e.g. cut back any bushes that may have grown over the terminal.
Do not stack anything against or in front of the terminal.
In severe weather conditions, check that the terminal does not
become blocked by snow or ice.
‘PLUMING’ FROM THE FLUE TERMINAL
Whilst operating, it is quite normal for the boiler to produce a white
plume of condensation vapour from the flue terminal.
This is due to the high efficiency of the boiler and may be
particularly evident with low outdoor temperatures.
CONDENSATE DISPOSAL
During the operation of the boiler, condensate is produced from
the flue gases and this is drained to a suitable disposal point
through the plastic waste pipe on the left hand side of the boiler.
The condensate drain must not be modified or blocked.
Blockage of the condensate drain, caused by debris or freezing
can cause automatic shutdown of the boiler. If you suspect
freezing and the pipe run is accessible, you can try to free the
obstruction by pouring hot water over the exposed pipe and
clearing any blockage from the end of the pipe. If this fails to
remedy the problem, you should contact your service engineer.
Section 3: Caring for your Boiler

Page 8
4 AFTER SALES
SUPPORT
If your boiler breaks down during the guarantee period, in the first
instance you should contact your installer to identify the cause of
the problem and if necessary your installer will contact us.
If you are unable to contact your installer please telephone the
Grant Service Department for assistance. Authorisation to carry
out guarantee repairs must be obtained from Grant before any
work is carried out.
Costs incurred by unauthorised work will not be covered by Grant.
To contact the Grant customer support team, please call: 00353
5791 20089.
If you need to contact Grant, please have the following
information available:
• The address at which the installed boiler is located and the
name of the householder.
• Details of the fault and any checks you may have carried out.
• Details of the installer and any competent persons who may
have carried out work on the install in the past (if possible)
The completed Boiler Passport, which must have the relevant
section returned on installation to activate the warranty, with the
annual service details recorded as appropriate.
Seciton 3: Caring for your Boiler & Section 4: After Sales Support
3.6 FROST PROTECTION
Your installer may have fitted a frost thermostat. If not and you
are likely to be away for a short time, leave the boiler on with the
boiler thermostat set at a low setting.
If the boiler is not going to be used for longer periods of time, the
boiler and system should be drained.
Contact your service engineer for draining and filling the system.
! NOTE !
We recommend that both antifreeze and corrosion inhibitor
be used in the primary water system.
3.7 FAILURE OF ELECTRICITY
SUPPLY
If the electricity supply fails, the boiler will not operate. It should
relight automatically when the supply is restored.
If a programmer is fitted, it will retain the time settings for up to 24
hours and will not have to be reset to the correct time of day when
the supply is restored.
The programmer display will remain for up to 1 hour in the event
of an electricity supply failure, and will re-appear when the supply
is restored.
3.8 CLEANING YOUR BOILER
Lightly wipe over the case with a damp cloth and a little detergent
and dry completely.
Do not use abrasive pads or cleaners.
Take care not to touch any hot surfaces.

Page 9Section 5: Service Log
Service 1
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 2
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 3
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 4
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 5
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 6
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 7
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 8
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
5 SERVICE LOG

Page 10
Service 9
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 10
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 11
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 12
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 13
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 14
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 15
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Service 16
Date
Engineer
Company name
Telephone number
OFTEC Technician number
Comments
Signature
Section 5: Service Log

Page 11Notes
NOTES

GRANT ENGINEERING (IRELAND) ULC
Crinkle, Birr, Co. Offaly, R42 D788, Ireland
Tel: [phone]
Email: [email protected] www.grant.eu