Buderus Logano GE515 User manual

Oil- and gas-fired boilers
Operating instructions
Logano GE515
Exchange boiler for the Logano G505, G515, GE515, GK505
6 720 818 191 (2018/01) GB/IE
Please read carefully before use.

Preamble
Subject to technical modifications.
Constant development may lead to minor deviations of
illustrations, functional steps and specifications from
those described/shown.
Updating your documentation
Please let us know if you would like to make suggestions
to improve our documentation or if you have noticed any
errors.
2Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
We reserve the right to make any changes due to technical modifications.
Regarding these instructions
These operating instructions contain important
information for the safe and appropriate operation and
maintenance of the oil- and gas-fired boiler Logano
GE515.
Correct fuel
This system requires the correct fuel to ensure a proper
operation. During commissioning, your system installer
will enter the correct type of fuel, which your system
requires, into the table below.
This device meets all basic requirements of
relevant standards and guidelines.
Its conformity has been verified. All
associated documents and the original
Declaration of Conformity are available
from the manufacturer.
A copy of the Declaration of Conformity is
included in the installation and
maintenance instructions.
This product is a boiler block with a casing
pursuant to the Official Journal of the
European Union, L 239, Commission
Regulation (EU) No. 813/2013
implementing guideline 2009/125/EC Art. 2,
§6.
According to the aforementioned Official
Journal, Art. 1 § 2 (g), this product is
recognized as a replacement product which
replaces an identical boiler block already on
the market. Compliance with the intended
use of the boiler and its components must
be ensured and documented.
Anyone offering this product to consumers
shall be responsible for its correct use.
CAUTION!
SYSTEM DAMAGE
through incorrect fuel.
Only use the correct fuel identified for
your system.
USER NOTE
We recommend you seek the advice of
your system installer if you intend
changing the fuel for your system.
Use the following fuel:
company stamp/signature/date

Index
3
We reserve the right to make any changes due to technical modifications.
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
1 For your safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.2 Notes structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3 Please observe these safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3 Using correct fill and make-up water . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1 Water description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.2 Water quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4 System start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.1 Making the system operational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.2 Commissioning the control device and the burner. . . . . . . . . . . . . . . . . . . . . . . .9
5 System shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 Shutting down the control device and the burner . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Shutting down the system in an emergency . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Correcting burner faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 System maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1 Why is regular maintenance important? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.2 Checking and correcting the water pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 13

For your safety1
4Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
We reserve the right to make any changes due to technical modifications.
1 For your safety
Logano GE515 oil- and gas-fired special boilers have
been developed and built employing the latest
technologies and safety regulations.
Ease of operation was given a particularly high priority.
Please observe the safety instructions and the
operator’s instructions to ensure optimum safe,
economical and environmentally-friendly utilisation of
your system.
1.1 Correct use
The Logano GE515 oil- and gas-fired special boiler was
designed for the heating of central heating water. You
may use any type-tested oil- or gas-fired burners acc. to
EN 267 or EN 676 provided their operating range
correlates with the boiler specification.
These boilers are operated with the 4000 series control
systems.
1.2 Notes structure
Two levels of danger are identified and identified by
signal terms:
1.3 Please observe these safety
instructions
Inappropriate operation of Logano GE515 boilers may
lead to material losses.
Only operate the boiler as intended and when it is in
perfect condition.
Let a heating engineer install your heating system.
Let your local heating engineer train you properly in
the operation of this system.
Please read these operating instructions carefully.
WARNING!
DANGER TO LIFE
Identifies possible dangers emanating
from a product, which might lead to
serious injury or death, if appropriate care
is not taken.
CAUTION!
DANGER OF INJURY/
SYSTEM DAMAGE
Points to a potentially dangerous
situation, which might lead to medium or
slight injuries or to material losses.
USER NOTE
User tips for the optimum utilisation and
setting of the equipment plus useful
information.
WARNING!
DANGER TO LIFE
through the explosion of volatile gases.
There is a risk of explosion if you can smell
gas.
Keep naked flames away. Do not
smoke.
Do not use lighters.
Avoid sparks!
Do not operate electrical switches, incl.
telephone, plugs or door-bells.
Close the mains gas shut-off valve.
Open windows and doors.
Warn all occupants, but do not use
doorbells.
Leave the building.
Call your gas supplier and your local
heating engineer from outside the
building.
If necessary, notify police or fire
services.
Immediately leave the danger zone if
you hear gas streaming out.

For your safety 1
5
We reserve the right to make any changes due to technical modifications.
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
1.3.1 Location 1.3.2 Working on the heating system
WARNING!
DANGER TO LIFE
through poisoning.
Insufficient ventilation can lead to
dangerous flue gas leaks.
Ensure that the ventilation and exhaust
air openings are neither restricted nor
closed.
The boiler must not be operated, unless
you immediately remedy the fault.
WARNING!
RISK OF FIRE
through combustible material or liquids.
Never store flammable materials or
liquids in the immediate vicinity of the
heat generator.
CAUTION!
BOILER DAMAGE
through contaminated combustion air.
Never use chlorinated cleaning agents
or halogenated hydrocarbons (as, for
example, contained in spray cans,
solvents or cleaning agents, paints and
adhesives).
Avoid atmospheres which are
frequently very dusty.
Never hang washing to dry in the boiler
room.
CAUTION!
SYSTEM DAMAGE
through frost.
Ensure that the boiler room is always
free from frost.
WARNING!
DANGER TO LIFE
through the explosion of volatile gases.
Ensure that the installation, the gas, oil
and flue gas connections, the
initial start-up, the power connection,
maintenance and repair work are only
carried out by competent specialists.
Ensure that work on parts of the gas
installation is only carried out by a
licensed specialist.
CAUTION!
SYSTEM DAMAGE
through inadequate cleaning and
maintenance.
Have your system inspected, cleaned
and maintained annually by a specialist
contractor.
We recommend you enter into a
contract covering an annual inspection
and maintenance on a demand-
dependent basis.

6Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
We reserve the right to make any changes due to technical modifications.
Product description2
2 Product description
The main components of the Logano GE515 oil- and
gas-fired special boiler are:
–Boiler block (Fig. 1, item 3).
The boiler block transfers the heat generated by the
burner to the heating water.
–Boiler shell (casing, Fig. 1 and Fig. 2, item 1),
thermal insulation (Fig. 1, item 2).
Boiler shell and thermal insulation prevent energy
loss.
–Control device (Fig. 1, item 4).
The control device is designed to monitor and control
all electrical components of the Logano GE515 oil-
and gas-fired special boiler.
Fig. 1 Logano GE515 oil- and gas-fired special boiler
1Boiler shell (casing)
2Thermal insulation
3Boiler block
4Control device
Fig. 2 Logano GE515 oil- and gas-fired special boiler
1Boiler shell (casing)
2
3
4
1
1
1
1
1

Using correct fill and make-up water 3
7
We reserve the right to make any changes due to technical modifications.
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
3 Using correct fill and make-up water
This chapter comprises general information to describe
the water in your heating system.
Observe the basic, system-specific requirements for
water quality in chapter 3.2 "Water quality".
3.1 Water description
In your heating system, water is used as the heat
transfer medium. Depending on its purpose, water is
given different descriptions.
–Heating water:
Water contained within your heating system.
–Fill water:
Water used for the first filling of your system before
commissioning.
–Make-up water:
Water used for the topping up of your system in case
of water losses.

8Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
We reserve the right to make any changes due to technical modifications.
Using correct fill and make-up water3
3.2 Water quality
Any water contains substances, e. g. Ca (HCO3)2
(Calcium hydrogen-carbonate), which may influence the
function of your heating system. These may lead to
corrosion, scaling or deposits.
Regularly check your water quality and, if necessary,
treat your fill and make-up water, to ensure that your
heating system permanently retains its economy,
function, operational reliability and energy efficiency.
Observe the following table regarding the appropriate
use and treatment of the fill and make-up water.
This table is an extract from the Code of Practice K8
"Water treatment for hot water heating systems" in the
Buderus sales catalogue.
CAUTION!
SYSTEM DAMAGE
through corrosion and scaling because of
fill and make-up water, which does not
comply with system-specific requirements.
Check with your local heating
contractor or your water supply
company regarding the Ca (HCO3)2
concentration (calcium hydrogen-
carbonate) in your area.
You should treat the fill and make-up
water, if it does not comply with system-
specific requirements. In such cases
contact your local heating engineer.
Total rated boiler
output in kW
Ca (HCO3)2 concentration
in mol/m³
Maximum fill and make-up water
volume Vmax in m³
Heating water pH
value
100 < Q 350 2.0
V max = three times the system volume 8.2–9.5
350 < Q 1000 1.5
100 < Q 350 > 2.0
8.2–9.5
350 < Q 1000 > 1.5
Tab. 1 Requirements of filling, make-up and heating water
Vmax 0 0313 QkW
Ca HCO3

2
mol
m3
----------


-------------------------------------------------
,=

System start-up 4
9
We reserve the right to make any changes due to technical modifications.
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
4 System start-up
This chapter explains, how you prepare the system for
operation and how to commission the control device and
the burner.
4.1 Making the system operational
You should check the following to prepare the system for
operation:
the system water pressure (see chapter 7.2
"Checking and correcting the water pressure",
page 13),
whether the fuel supply to the main fuel shut-off valve
is open,
whether the heating system emergency stop switch
is switched on.
Let your specialist show you where the fill valve is
located in the pipework of your system (return).
4.2 Commissioning the control device
and the burner
Start up your boiler via the control device (in this
example, Fig. 3: series 4000 control device). By
commissioning the control device, you also
automatically commission the burner. The burner can
then be started via the control device. For further details
in this connection, see the operating instructions of the
relevant control device or burner.
Switch the boiler water thermostat (Fig. 3, item 1) to
"AUT".
Set the On/Off switch (Fig. 3, item 2) to "I" (ON).
Fig. 3 Control device (for example: Logamatic 4000)
1Boiler water thermostat
2On/Off switch
21
USER NOTE
Please observe the operating
instructions of the control device.

System shutdown5
10 Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
We reserve the right to make any changes due to technical modifications.
5 System shutdown
This chapter explains, how you shut down your boiler,
the control device and the burner. Furthermore, you will
find explanations as to how you can shut down your
system in an emergency.
Shut off the fuel supply at the main fuel shut-off valve.
5.1 Shutting down the control device and
the burner
Shut down your boiler via the control device (in this
example 3: series 4000 control device). The burner is
automatically shut down when the control device is shut
down.
Set the On/Off switch (Fig. 3, item 1) to "0" (OFF).
5.2 Shutting down the system in an
emergency
In other dangerous circumstances, isolate the main fuel
shut-off valve and the electrical power supply of the
system via the boiler room main fuse or the emergency
stop switch for the boiler room (see chapter 1.3 "Please
observe these safety instructions", page 4).
CAUTION!
SYSTEM DAMAGE
through frost.
The system can freeze up if it is not in use,
e.g. through a shut-down because of
fault(s).
Protect your system against frost
damage, where temperatures below
zero must be expected.
Drain the heating water at the drain
cock at the lowest point in the system,
using the KFE cock (boiler fill and drain
cock). To do this, open the air vent
valve at the highest point in the system.
USER NOTE
For further details in this connection, see
the operating instructions of the relevant
control device.
USER NOTE
Only in an emergency, switch off the
system via the boiler room fuse or
heating system emergency stop switch.

Correcting burner faults 6
11
We reserve the right to make any changes due to technical modifications.
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
6 Correcting burner faults
Heating system faults are indicated in the control device
display. You will find detailed information regarding fault
displays in the service instructions of each respective
control device. In addition any burner fault is indicated
by a fault lamp on the burner.
Press the burner reset button (see burner operating
instructions).
See the technical burner documentation for information
regarding the resetting of the burner, if the burner will not
start after three attempts.
CAUTION!
SYSTEM DAMAGE
through frost.
The system can freeze up if it is not in use,
e.g. through a shut-down because of
fault(s).
You should drain the heating water via
the KFE tap at the lowest point in the
system, to protect it against freezing, if
the system remains switched off for
several days because of a fault shut
down.
CAUTION!
SYSTEM DAMAGE
through frequent activation of the reset
button.
The burner ignition transformer may be
damaged if you press the reset button
more than three times in succession after
the burner refuses to start.
Do not attempt to clear a fault more
than three times in succession by using
the reset button.

System maintenance7
12 Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
We reserve the right to make any changes due to technical modifications.
7 System maintenance
This chapter explains why regular maintenance is
important for your system. It will also indicate to you,
how you can check and regulate the water pressure.
7.1 Why is regular maintenance
important?
You should have your system serviced for the following
reasons:
–to achieve a high level of efficiency and to operate
the system economically (low fuel consumption),
–to achieve a high level of operational reliability,
–to maintain the highest level of environmentally
responsible combustion.
CAUTION!
SYSTEM DAMAGE
through inadequate cleaning and
maintenance.
Have your system inspected, cleaned
and maintained annually, by a
specialist contractor.
We recommend you enter into a
contract covering an annual inspection
and maintenance on a demand-
dependent basis.

System maintenance 7
13
We reserve the right to make any changes due to technical modifications.
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
7.2 Checking and correcting the water pressure
Your heating system must contain sufficient water to
ensure the functionality of your system.
Fill make-up water into your system, if the system
pressure is too low (see chapter 3 "Using correct fill and
make-up water", page 7).
7.2.1 When do you need to check the water
pressure in your heating system?
–Recently introduced make-up water loses much of its
volume in the first few days because it releases
gases. With new systems, therefore, check the water
pressure in your heating system initially on a daily
basis, and thereafter at increasing intervals.
–Check the water pressure monthly, if the heating
system still loses volume.
CAUTION!
SYSTEM DAMAGE
through frequent re-filling.
The system may be damaged, depending
on water quality, by corrosion and scaling,
if you frequently need to re-fill your system
with make-up water.
Notify your local heating contractor, if
you regularly need to add make-up
water to your system.
USER NOTE
Air pockets may form through the fill or
make-up water releasing gases.
Vent the system via the radiators and, if
required, replenish the system with
make-up water.

14 Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
We reserve the right to make any changes due to technical modifications.
System maintenance7
Systems are generally differentiated as open or sealed
systems. Open systems are now only rarely installed.
Therefore, a sealed system is used as an example of
how you can check the water pressure.
The specialist will have carried out all initial settings
during commissioning.
7.2.2 Open systems
On open systems (if fitted) the pressure gauge needle
(Fig. 4, item 1) must be within the red range (Fig. 4,
item 3).
7.2.3 Sealed systems
On sealed systems the pressure gauge needle (Fig. 5,
item 2) must be within the green range (Fig. 5, item 3).
Set the red needle (Fig. 5, item 1) on the pressure
gauge to the required system pressure.
Check the system water pressure.
The water pressure in the system is too low, if the
pressure gauge needle falls below (Fig. 5, item 2)
the green range (Fig. 5, item 3). Re-fill the heating
system with make-up water (see chapter 3 "Using
correct fill and make-up water", page 7).
Fill make-up water through the fill cock in the heating
system pipework (return).
Vent the heating system.
Re-check the water pressure.
Fig. 4 Pressure gauge for open systems
1Pressure gauge needle
2Green needle
3Red marking
Fig. 5 Pressure gauge for sealed systems
1Red needle
2Pressure gauge needle
3Green marking
3
1
2
3
1
2
CAUTION!
SYSTEM DAMAGE
through frequent re-filling.
The system may be damaged, depending
on water quality, by corrosion or scaling, if
you frequently need to re-fill your system
with make-up water.
Ensure that your heating system is fully
vented.
Check the heating system for leaks and
correct function of the expansion
vessel.

Notes
15
We reserve the right to make any changes due to technical modifications.
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01