REMKO ATK Series User manual

Operating and installation instructions
Edition EN - Q08 Read the instructions prior to performing any task!
ATK 25
REMKO ATK series
Automatic oil heater with built-in oil burner
and tank with exhaust gas connection

3
Content
Carefully read this operating manual prior to commissioning/using
the units!
This operating manual is a translation of the German original.
This manual is an integral part of the unit and must always be kept
in the vicinity of the installation location or on the unit itself.
Subject to modifications. No liability accepted for errors or misprints!
Safety notes 4
Environmental protection and recycling 4
Unit description 5
Specifications for fan-assisted heaters 6
Installation instructions 7
Exhaust gas ducting 8
Commissioning 9
Shutdown 10
Care and maintenance 10-12
Exhaust gas analysis 12
Fuel pump 13
Customer service and guarantee 14
Intended use 14
Electrical wiring diagram 14
Troubleshooting 15
Exploded view of the unit 16
Spare parts list 17
Maintenance log 18
Technical data 19

4
REMKO ATK series
Safety notes
Always observe the respective local building code and fire prevention
guidelines as well as the guidelines of the accident prevention and
insurance associations when using the units. Disposing of packaging
When disposing of packaging
material, please consider our
environment.
Our units are carefully packed
and delivered in stable transport
packaging and, if applicable,
on a wooden pallet.
The packaging materials are
environmentally friendly and can
be recycled.
By recycling packaging materials,
you make a valuable contribution
to the reduction of waste and
conservation of raw materials.
Therefore, only dispose of
packaging material at appropriate
collection points.
Disposal of the old unit
The manufacturing process for
the units is subject to continuous
quality control.
Only high-grade materials are
processed, the majority of which
are recyclable.
You also contribute to
environmental protection by
ensuring that your old equipment
is only disposed of in an
environment friendly manner.
Therefore, only bring the old
unit to an authorised recycling
business or to an appropriate
collection point.
The units have been subjected
to extensive material, functional
and quality inspections prior to
delivery. However, dangers can
arise from the units if they are used
improperly or not as intended by
untrained personnel!
Please observe the following notes:
■
The power plug must be pulled
out of the mains socket before
maintenance and repair work
■ The units may only be operated
by persons that have been
instructed in their operation
■ The units must be installed and
operated in such a way that
personnel are not endangered
by exhaust gases and radiant
heat and no fires may occur
■ The units must then only
be operated in areas where
the units can be supplied
with an adequate amount of air
for combustion
■ Without exhaust gas system,
the units may only be operated
in well ventilated spaces.
Personnel must not remain
in the installation area.
Appropriate prohibition
signs must be displayed at
the entrances!
■ Only set the units down on
a steady, level and non-
combustible base
■ The units must not be installed
or operated in potentially
flammable or explosive
environments
■ The units must not be installed
or operated in atmospheres
containing oil, sulphur or salt
■ A safety zone of 1.5 m must
be maintained around the units,
incl. to non-combustible items
■ The protective grille of the
intake must always be kept free
of dirt and loose objects
■ Never insert foreign objects into
the unit
■ The units may not be exposed
to direct jets of water.
such as a high-pressure cleaner
etc.
■ All electrical cables for the units
must be protected against
damage (e.g. by animals etc.)
■ Safety devices must not
be bypassed or disabled
■ According to its design,
permanently fixed unit
installation is not intended
for this unit type
Environmental
protection
and recycling

5
Unit description
The units are portable, directly
fired fan-assisted heaters (WLE)
with heat exchanger and exhaust
gas connections exclusively for
commercial applications.
The units can be directly fired with
EL heating oil or diesel fuel and
may be operated with or without
an exhaust gas duct.
The units are equipped with
fuel tanks mounted beneath
the unit, automatic tank heating,
4-part filter system, low-
maintenance axial fans, high-
pressure atomisation burner with
optical flame monitoring, a room
thermostat socket and power cable
with protective contact plug.
The units conform to
the fundamental health and safety
requirements of the appropriate
EU stipulations. The units are
reliable and easy to operate.
The units may be used among
other things for the following:
■ Drying newly completed
buildings
■ Spot heating of outdoor
workplaces
■ Spot heating workplaces
in open, non-flammable
manufacturing facilities and
halls
■ Temporarily heating enclosed
and open spaces
■ De-icing machines, vehicles and
non-combustible warehoused
goods
■ Maintaining the temperature
of frost-sensitive parts
Safety temperature limiter
(STB)
The heating function is
permanently interrupted by
the safety temperature limiter
(STB) in the event of the units
overheating or malfunctioning.
In the event that the STB is
triggered, a fault shutdown
of the automatic burner occurs.
A manual reset of the STB can only
be implemented after the units
have cooled down.
The STB is reset by actuating
the reset key [2].
1. Unscrew protective cap [1].
2. Carefully press in the reset key
[2] with a suitable tool.
3. Screw the protective cap [1]
back on again.
4. Reset the automatic burner.
Operating sequence
The supply air fan switches on
once the units are switched
on or if heat is required (fully
automatic unit operation with
room thermostat).
The solenoid valve opens the fuel
supply to the oil nozzle following
burner pre-ventilation.
The fuel atomised under high
pressure is enriched with a
quantity of oxygen appropriate to
the heating capacity and ignited by
an electrical spark.
As soon as a flawless flame has
been generated, the automatic
burner begins optical flame
monitoring.
Warm air is blown out after a short
period of time.
The automatic burner
executes all unit functions fully
automatically and ensures reliable
monitoring.
In the event of malfunctions or
an unstable or extinguished flame,
the automatic burner switches
the units off.
The reset lamp lights up.
The units can only be restarted
after manually resetting
the automatic burner.
After switching off the units via
the operating switch or the room
thermostat, the supply air fan runs
to cool the combustion chamber
for a certain time and then
switches off automatically.
Depending on the heat
requirement, the operating
sequence described is repeated
fully automatically when
in thermostat mode.
12
CAUTION
If the safety temperature
limiter has been triggered,
the cause of the malfunction
must be identified and rectified
before a reset is performed.
NOTE
In order to prevent a renewed
exceedance of the triggering
temperature the operating
conditions of the unit should
be checked before resetting
the STB.
CAUTION
Safety devices must not
be bypassed or disabled.

6
REMKO ATK series
Specifications for fan-assisted heaters
When using the units
the respective applicable
guidelines must always
be observed.
■ Combustion plant order
(FeuVo) for the individual
federal states
■ Accident prevention regulations
(UVV) "Heating, flaming and
melting devices for construction
and installation work" (VBG 43)
■ Workplace directives ASR 5
■ Workplace regulations §§ 5
and 14
Extract from the accident
prevention regulations (VBG 43)
§ 37 Operating personnel
The units may only be operated by
persons that have been instructed
in the operation of the equipment.
§ 38 Installation
(1) The units must be installed on a
stable base.
(2) The units must be installed and
operated in such a way that
persons are not endangered
by exhaust gases and radiant
heat and no fires may occur.
(3) The units must then only be
installed and operated in areas
where the units can be supplied
with an adequate amount
of air for the combustion
and the exhaust gases can
be routed to the outside via
exhaust gas ducting.
There is enough natural air
supply for the combustion if,
for example, the space in m3
is at least 10 times the nominal
heating capacity in kW of all of
the units operating in the space
and if the natural change of air
is guaranteed by windows and
doors.
(4) In derogation from point 3,
the units may be operated in
a space without exhaust gas
ducting if this is well ventilated
(both incoming and outgoing
air) and the proportion of
health endangering substances
in the breathing air does
not reach a detrimental
concentration.
There is good natural
ventilation if, for example:
1. the room volume in m3is
at least 30 times the nominal
heating capacity of all of
the units operating in the space
and if the natural change of
air is guaranteed by windows
and doors or 2. there are non-
closable openings for incoming
and outgoing air in the vicinity
of the ceiling and floor whose
size in m2is at least 0.003
times the nominal heating
capacity of all of the units
operating in the space.
(5) The units may not be installed
or operated in potentially
flammable or explosive
environments or areas.
§ 44 Space drying
(2) In derogation from § 38 section
3 heating units can be used for
drying areas with adequate air
supply for combustion without
having to route the exhaust
gases through exhaust gas
ducting to the outside.
It is forbidden for personnel
to remain in these areas for
extended periods.
Appropriate prohibition signs
should be put up at the
entrances.
§ 53 Testing
(2) In accordance with
the operating conditions,
the units must, if necessary,
be checked at least yearly by
a specialist to ensure that they
are in a condition that is safe
to use.
The exhaust gas values
for the burners must also
be checked.
§ 54 Monitoring
(1) The personnel tasked with
operating the units must check
the units for visible defects
on the operating and safety
devices as well as the presence
of the protective devices at
the start of work.
(2) If defects are discovered
these must be reported to
the supervisor.
(3) In the case of defects that
endanger the operational safety
of the unit, it must be taken out
of service immediately.
§ 55 Infringements
Infringements in the sense of
§ 710 section 1 of the Imperial
Insurance Code (RVO) pertain to
an intentional or negligent breach
of the provisions of VBG 43.

7
Installation instructions
Installation in enclosed, well
ventilated areas without
exhaust gas connection
■ The operation of the units is
permissible if the minimum air
quantity cited in § 38 section 4
for combustion is supplied
■ Reliable extraction of the
combustion gases must be
guaranteed in all cases in
order to exclude impermissible
contamination of the room air
with hazardous substances
Fresh air is fed from below.
Exhaust gases are routed
upwards
Room heating
■ The units may only be operated
for room heating with a room
thermostat (accessory)
■ The fresh air supply required
for trouble-free combustion
must be ensured. It is practical
to have the fresh air supply
provided by windows and
doors or through appropriately
dimensioned openings in
the outside wall
Safety distances
■ In order to guarantee safe
operation and maintenance
of the units, a 1.5 m safety
distance must be maintained
around the unit
■ Flooring and ceilings must be
fire retardant
■ Intake and outlet diameters
must not be narrowed or
blocked with foreign objects
Electrical wiring
■ The units are
operated with
230 V/50 Hz
alternating current
■ The electrical connection is
made using a built-in mains
cable with earthed safety plug
■ Extensions to the cable
may only be carried out by
authorised electricians, subject
to the length of the cable,
connected load of the unit and
taking into consideration how
the unit is used at its location
The safety regulations of
the accident prevention and
insurance associations, the
respective regional building
regulations and the combustion
appliances regulations apply
to operation of the unit.
■ Make sure that there is an
adequate fresh air supply
appropriate to the respective
forced-air burner capacity
(see name plate)
Outdoor installation
■ Operation of the units must
not present a hazard or
unreasonable discomfort
■ The unit operator must
ensure that it is impossible
for unauthorised persons
to manipulate either the unit
or the power supply
■ To prevent damage due
to inclement weather, units
installed outdoors must be
adequately protected
NOTE
Overpressure and underpressure
in the installation area should
be avoided as this will inevitably
lead to combustion-related
faults.
NOTE
The electrical connection for
the units must be made at a
separate feed point with a residual
current device in accordance with
VDE 0100, Section 55.
NOTE
For optimum operation
the units should not be
operated above an ambient
temperature of 25 °C.
CAUTION
The units must only
be installed in well ventilated
spaces and not in living areas
or similar recreational areas.
NOTE
The burner setting must be
checked after every change
of location and adapted
to the new environmental
conditions and atmospheric
conditions if necessary.

8
REMKO ATK series
Exhaust gas ducting
Example 1
Operation with
extended exhaust
gas ducting
Condensate trap
required
Example 2
Operation
without
extended
exhaust gas
ducting
Max. 1 metre
Example 3
Impermissible
layout
Max. 1 metre
Over 1 metre
In order to avoid the combustion
chamber being damaged due
to condensation of moisture
(condensate) in example 3,
make sure that the exhaust gas
ducting is correctly installed
with a condensate trap as shown
in example 1.
■ Fault-free operation is
guaranteed if the exhaust gas
ducting is fitted in a rising
arrangement and with a vertical
end pipe
■ The exhaust gas ducting should
end at least above the height
of the eaves but ideally above
the height of the ridge, in order
to prevent any counter-pressure
being caused by weather
conditions (e.g. wind)
■ The minimum distance of 0.6 m
to combustible parts must be
met
■ Exhaust gas ducting parts and
fastening materials are available
as accessories
It is also possible to operate the
units outdoors or in open spaces
without exhaust ducting.
However, we recommend fitting a 1m
exhaust gas duct with a rain hood on
top (example 2) in order to prevent
the ingress of rainwater and dirt.
If the units are used for temporary
room heating then the combustion
gases must be routed away, to the
outside if necessary.
■ The exhaust gas ducting must
be designed so that the thermal
lift of the exhaust gases is
guaranteed at all times
■ The exhaust gas ducting
must be so designed so that
no counter-pressure can be
generated
Notes for implementing the 1st.
BImSchV
Units that are not expected
to be operated for longer than
3 months in the same location
are not subject to any approvals
or monitoring as per the 1st.
BImSchV.
■ All parts of the exhaust gas
ducting must be reliably
fastened. Its diameter must
not be smaller than the outlet
nozzle of the unit
■ The lower secondary air
openings in the exhaust gas
connection must not be closed
or covered
■ The exhaust pipe must not
be pushed beyond the stop
(swage)
NOTE
There must be no counter pressure arising
from incorrect installation of the exhaust
gas ducting under any circumstances.

9
Paraffin formation with low
outside temperatures.
Even at low temperatures, an
adequate supply of flowing
heating oil must be ensured.
■ The in-built tank heater
is activated only when
the power plug is connected
to a functional mains socket
and the ambient temperature
is lower than 10°C
■ It is not possible to rectify
paraffin separation that has
already occurred with the tank
heater. If paraffin has already
formed it is necessary to clean
out the complete fuel system
Fuel filter
The fuel filter must be checked for
dirt or paraffin formation before
the unit is started and after every
filling of the tank.
The filter is directly adjacent to the
tank filler necks. The fuel tank may
only be filled with the tank filter
inserted into the filler necks.
Commissioning
The units should be checked for
visible defects on the operating
and safety devices as well as
proper installation and correct
electrical connections before
commissioning.
A person, who has been
adequately trained in the handling
of the units, must be tasked
with operation and monitoring
of the units.
■ Set up the units in a stable
position
■ Ensure there is an adequate
supply of combustion air
■ Check that the inlet and outlet
are free
■ Prevent overpressure and
underpressure in the installation
area
■ Ensure there is adequate fuel
supply
■ The fuel tank may only be filled
with clean heating oil or diesel
fuel when the unit is switched
off
Do not use biodiesel!
■ Use only clean and suitable
tanks for filling
Connecting the units
to the electrical power supply
1. Move the operating
switch to the "0" (Off)
position.
2. Connect the power plug to
a properly installed
and appropriately
safeguarded
230 V/50 Hz
mains socket.
Heating without room thermostat
The units are operating
in permanent operating mode.
1. Move the operating switch
to the "I" (ON) position.
s s s
2
1
NOTE
The exhaust gas values must
be checked and/or adjusted
by authorised and qualified
technicians according to
the local conditions.
NOTE
The electrical connection for
the units must be made at a
separate feed point with a residual
current device in accordance with
VDE 0100, Section 55.
CAUTION
In the event of defects that
endanger the operational
safety of the units, operation
of the units must be
discontinued immediately and
the supervisor informed!
NOTE
Paraffin formation can start
at temperatures below 5°C.
To avoid this appropriate
preventative measures must
be implemented, e.g. winter
Diesel.

10
REMKO ATK series
Regular care and observation
of some basic requirements will
ensure trouble-free operation and
a long service life of the units.
The complete units, including
combustion chamber and
burner, must be cleared of soot
deposits, dust and dirt after every
heating period or according
to the operating conditions.
The oil filters must be cleaned and/
or replaced at least once annually
or more frequently according to
the contamination of the fuel.
■ Keep the units free of dust and
other deposits
■ Only clean the units with a dry
or moistened cloth
■ Never subject to direct jets
of water.
e.g. pressure washers etc.
■ Never use abrasive or solvent-
based cleaners
Shutdown
1. Move the operating
switch to the "0" (Off)
position.
The supply air fan runs to cool
the combustion chamber and
switches off independently.
2. With longer periods
of inactivity,
disconnectthe units
from the mains
power supply.
Care and maintenance
s s s
4
Heating with room thermostat
(Accessories)
The units operate fully
automatically and according
to the room temperature.
1. Pull out the strapping plug [2].
2. Connect the room thermostat
[4] plug [3] with the thermostat
receptacle [1] on the unit.
3. Place the room thermostat
[4] at a suitable location
in the room.
The thermostat sensor must not
be located directly in the warm
air flow and must not be placed
directly on a cold floor.
4. Set the desired room
temperature on the room
thermostat [4].
5. Move the operating
switch to the "II"
(Auto) position.
The unit starts automatically
after a brief burner pre-ventilation
if heat is required and then runs
fully automatically.
3
1
1
2
NOTE
Adjustment and maintenance
work may only be carried out
by authorised and qualified
technicians.
CAUTION
Before undertaking any work
on the units, the power
plug must be removed from
the mains socket. There is an
acute risk of injury from
automatic fan switch-on,
especially when the unit
enclosure is opened.
CAUTION
Never interrupt the power
supply prior to the completion
of the follow-up cooling phase.
There is no guarantee
entitlement in case of damage
to the units due to overheating.
NOTE
In the case of longer periods
of inactivity or if the units are
in storage, please ensure that
the fuel tank is always filled
with heating oil or diesel.

11
All sizes are approximate values and are in mm.
The optimum setting must
be adapted to the unit-specific
conditions.
■ Use only suitable cleaners, even
for heavy contamination
■ Use only clean EL heating oil
or diesel fuel
Beware of paraffin formation!
■ The fuel tank must be emptied
and then rinsed with clean fuel
at least twice a year
Do not use water!
■ Keep the burner head clean
■ Wear parts such as the oil
nozzle and seals must be
checked regularly and replaced
if necessary
The oil nozzle must be replaced
before the start of each heating
season!
■ Depending on its condition,
the fuel filter must be replaced
before each heating season
Note the direction of flow!
■ Clean the tank filter in the filler
neck of the fuel tank regularly
■ Only a specialist may clean
the plastic filter in the fuel
pump and replace the nozzle
■ Check that the safety devices
are operating correctly at
regular intervals
■ In the event of diminishing heat
capacity, smoke formation and/
or poor ignition, perform a unit
and burner inspection
■ Observe the regular
maintenance and care intervals
Maintaining the burner
Clean the burner components as described:
s s s
1. Remove the photocell [1] from
its mounting [5].
2. Remove the ignition cable [2]
from the ignition electrodes [6].
3. Remove the union nut [3] from
the nozzle mounting.
Beware of dripping fuel!
4. Remove the locking screw from
the mounting plate [4] and,
by turning the plate [4] slightly
in an anti-clockwise direction,
remove the burner from
the burner pipe.
5. Clean the ignition electrodes
[6], baffle plate [7] and
the opening [5] for the light
incidence.
6. Position the ignition electrodes
[6] in accordance with reference
values.
7. After the maintenance work is
complete, refit all parts carefully
in reverse order.
NOTE
Use only suitable tools
to remove the oil nozzle and
use the nozzle mounting
for resistance!
NOTE
When positioning the baffle
plate 7, always ensure that
the aperture 5 is not obscured
by a strut on the plate.
Position the fastening screw
of the baffle plate 7 above/
in the middle of the ignition
electrodes.
2 - 3
7
7
Setting the ignition electrodes
2
3
1
5 7
6
4

12
REMKO ATK series
E
D
Due to the construction related
design of the exhaust gas
connection (connection nozzles with
secondary air openings), it is not
possible to carry out an exhaust gas
analysis in the conventional way
(measurement in the exhaust pipe
behind the exhaust gas connection).
To perform the exhaust gas analysis,
the exhaust gas measuring instrument
probe must be placed in the centre of
the heat exchanger pipe port.
The measuring probe is placed in a
corresponding measurement aperture
in the combustion chamber pipe
connections through a secondary air
opening on the side in the exhaust
gas connection (see figure below).
Notes for implementing the 1st.
BImSchV
Units that are not expected to
be operated for longer than
3 months in the same location
are not subject to any approvals
or monitoring as per the 1st.
BImSchV.
Exhaust gas analysis
s s s
Fig. Exhaust gas connection
Legend:
1 = Exhaust gas connection 150 ø
2 = Pipe connections/heat exchanger
3 = Secondary air opening
4 = Measuring probe
1
3
4
The fuel tank must be cleaned:
■After each heating period
or earlier according
to the operating conditions
■Before and after extended
periods out of operation
■In the event of frequent
contamination of the fuel filter
■In the event of condensate
formation in the fuel
Proceed as follows to clean the
fuel tank:
1. Unscrew the drain screw [D]
and drain the remaining (old)
fuel into a suitable container.
2. Rinse the fuel tank thoroughly
with clean heating oil or other
suitable agent (several times
if necessary).
Do not use water for rinsing!
3. Do not use solvent-based
cleaners.
This can damage the internal
coating of the fuel tank!
4. Avoid the use of pressure
washers.
5. After cleaning, replace the drain
screw [D].
The sealing ring [E] must be
replaced on each occasion!
6. The fuel tank must be filled
with clean heating oil or diesel
fuel.
Do not use biodiesel!
7. Start the unit, run for
approx. 5 min and check
everywhere for leaks.
Setting the air slide
The air slide is factory set.
The combustion air may
only be adjusted to the unit-
specific or local conditions by
an authorised and qualified
technician.
After loosening the clamping
screw [K], the air slide is fine
adjusted by means of exhaust
gas measurement.
2
Cleaning
the fuel tank
Burner head Air slide
K
approx. 3.5 mm
CO2 - value: approx. 11 - 12 %;
Soot level: 0 - 1 in acc. with Bacharach

13
C
B
A
S
P
U
Fuel pump
Cleaning the cartridge filter
Clean the cartridge filter [B] of
the fuel pump at regular intervals
and/or replace as necessary.
1. Turn the stopper [C] upwards
out of the pump using
a hexagon wrench.
2. Carefully remove the cartridge
filter [B] from the stopper.
3. Clean and/or replace
the cartridge filter [B].
4. Push the filter back onto
the stopper and screw both
back into the pump.
The pump works in the 1-pipe
system as standard.
The required fuel is sucked
in by suction pipe S.
In the event of initial
commissioning and after emptying
the fuel tank, the fuel system
is bled using the nozzle. In this
case, the unit is switched on.
After a possible fault shutdown,
the unit is restarted after unlocking
(observe the waiting time)
the automatic burner.
If a fault shutdown occurs
after the 3rd unit start, the fuel
filter must first be checked for
contamination and leak tightness.
NOTE
Adjustment and maintenance
work may only be carried out
by authorised and qualified
technicians.
CAUTION
An electrical safety check must
be carried out in accordance
with VDE 0701 after any work
on the units.
CAUTION
Never let the pump run for
extended periods without any
fuel. Never leave the units for
extended periods with a pump
that has run dry.
NOTE
Impeccable fuel quality
is absolutely necessary for
lubricating the pump gearbox.
Never use suction to remove
residual water or fine dust
that has a tendency to set
(e.g. cement).
NOTE
Please ensure that an adequate
fill level is maintained
in the fuel tank.
Approx. 5 - 10 litres of fuel
is required.
Adjustment of the pump pressure
The pump pressure may only
be set and/or modified when
a suitable oil pressure gauge is
connected to the connection [P].
The pump pressure is modified
by turning the pressure adjustment
screw [A]:
Clockwise:
Increase pressure
Anti-clockwise:
Decrease pressure
The pump pressure is determined
according to the heating
capacity of the unit and the size
of the nozzle.
Converting to a 2-way pipe system
In this case, an additional stopper
[T],EDP No. 1107374 must
be installed.
1. Remove stopper [U]
2. Screw in stopper [T]
3. Reinstall stopper [U]
4. Establish return flow [R]
T
U
SR

14
REMKO ATK series
Electrical wiring diagram
As a prerequisite for any guarantee
claims to be considered, it is
essential that the ordering party
or their representative complete
and return the “Certificate of
guarantee” to REMKO GmbH &
Co. KG at the time when the units
are purchased and commissioned.
The units have been tested several
times in the factory to verify their
correct function.
However, if malfunctions should
arise that cannot be remedied
by the operator with the assistance
of the troubleshooting section,
please contact your specialist
dealer or contractual partner.
Customer service
and guarantee
Intended use
The units are designed exclusively
for heating purposes in industrial
or commercial use (not for heating
private living spaces) on the basis
of their structural design and
equipment.
The units must only be operated
by appropriately instructed
personnel.
With non-observance
of the manufacturer's
specifications, the respective
local legal requirements or after
arbitrary alterations to the units,
the manufacturer shall not be
liable for resulting damages.
NOTE
Operation other than the types
listed in this operating manual
is prohibited.
Failing to observe this renders
any manufacturer liability
or guarantee claims void.
CAUTION
Copyright
The redistribution, even
in part, or the use of this
documentation for purposes
other than intended
is prohibited without
the written authorisation of
REMKO GmbH & Co. KG .
Legend:
BS = Operating switch
C= Start-up capacitor
F= Fine wire fuse
FA = Automatic firing device
FZ = Photocell
H= Phase indicator light
M= Fan motor
MV = Solenoid valve
NK = Aftercooler thermostat
RS = Reset
RT = Thermostat socket
STB = Safety temperature limiter
THZ = Tank heater with thermostat
ZE = Ignition electrode
ZT = Ignition transformer
ZT
CZE
M
~
STB MV
FZ
BS
1 2 34
1
2
3
4
5
6
7
8
1
2
1
2
3
4
5
1
2
3
7
6
5
4
3
2
1
RS
1
2
3
1
2
3
H
RT
FA
THZ
F
J4 J3
J1 X2
J2

15
Troubleshooting
CAUTION
Repair work on the electrical installation and on the burner must be performed exclusively by authorised
specialists for safety reasons.
Malfunctions Cause:
The supply air fan does not start. 2 – 3 – 4 – 6 – 7 – 8 – 25
The supply air fan runs but the burner does not ignite.
The unit malfunctions without generating a flame.
1 – 5 – 6 – 9 – 10 – 11 – 12 – 13 – 14 – 15 – 16 – 17
20 – 21 – 23 – 24 – 26
The unit switches off during operation
(The fault lamp in the automatic burner lights up).
4 – 5 – 6 – 7 – 8 – 9 – 10 – 11 – 13 – 15 – 16 – 17
19 – 20 – 21 – 22 – 23 – 24 – 26
Smoke formation during operation. 7 – 10 – 11 – 13 – 15 – 17 – 19 – 21 – 22 – 24
The unit does not switch off in operating switch position "0". 18 – 25
Cause: Remedial measures:
1. Air in fuel system during start-up. Press the reset key.
Repeat if necessary (max. 3 times).
2. The unit is not connected to the electricity supply. Check the power plug, mains socket and mains voltage.
3. No plug in the thermostat socket. Connect the thermostat/strapping plug to the thermostat socket.
4. The room thermostat is set too low. Set the room thermostat higher than room temperature.
5. The fault lamp on the reset key lights up. Unlock the automatic burner by pressing the reset key.
6. Malfunction in the automatic burner. Replace the automatic burner.
7. The motor is overloaded.
(The fan runs irregularly or is blocked)
Allow the motor to cool.
Check the smooth running of the fuel pump.
Check the electrical and mechanical functioning of the motor.
8. The fuel pump is blocked. Check the fuel pump and replace if necessary.
9. The fuel tank is empty. Fill the fuel tank with clean EL heating oil or diesel.
10. The fuel filter is contaminated. Replace the fuel filter.
11. The nozzle is blocked or of the wrong size. Replace the nozzle (ensure correct type and size!).
12. The electrodes are incorrectly set, the insulation has cracked. Adjust and replace if necessary.
13. The air slide of the burner head has moved or is contaminated. Adjust using CO2indicator and soot pump.
(CO2: 11 - 12%, soot level in acc. with Bacharach: 0 - 1).
14. The solenoid valve does not open. Check the solenoid valve and replace if necessary.
The STB has triggered or is faulty.
15. The pump pressure is improperly set. Replace the pump coupling.
16. The pump coupling is faulty. Replace the pump coupling.
17. Leak in the intake line or fuel filter. Check and replace faulty parts if necessary.
18. The solenoid valve does not close. Disconnect the fuel line at the main filter, the flame extinguishes.
19. The protection grid on the supply air fan is contaminated. Clean the protection grid.
20. Shutdown by safety temperature limiter (STB). Check the intake protection grid and clean if necessary.
Reset the STB and automatic burner.
21. Air bubbles in fuel system. Start the unit to discharge the air through the nozzle.
Repeat this procedure up to 3 times if necessary.
22. Insufficient ventilation. Open door or window.
23. The photocell is contaminated or faulty. Clean the photocell and replace if necessary.
24. Improper exhaust gas routing. See chapter "Exhaust gas routing".
25. Operating switch malfunction. Check the operating switch and replace if necessary.
26. Paraffin precipitation in the heating oil. Clean the entire burner system.
See also chapter "Commissioning".

16
REMKO ATK series
Exploded view of the unit
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
47
45
95
96
B
43
44
93
94
92
See g.
AA
Fig. AA

17
Spare parts list
When ordering spare parts, please state the EDP no., unit number and type (see name plate)!
No. Designation EDP no. No. Designation EDP no.
01 Exhaust gas connection 1103702 53 Side section, right 1103771
02 Inspection cover 1103740 54 Side section, left 1103772
03 Cleaning cover 1103703 55 Locking ring 1101622
04 Seal 1103705 56 Hubcap 1101623
05 Combustion chamber compl. 1103728 57 Protective bracket, front 1102932
08 Air slide 1103729 58 Wheel 1102155
09 Baffle plate 1103730 59 Fuel tank 1103727
10 Oil nozzle 1103744 60 Rubber grommet 1103775
11 Nozzle mounting 1107132 61 Container seal 1103841
12 Mounting plate 1103731 62 Tank filter 1103776
13 Ignition electrode 1107139 63 Transportation bracket 1102931
15 Ignition cable 1107137 64 Sealing ring 1103777
19 Nut M14 1107134 65 Drain screw 1103778
21 Photocell 1103840 66 Tank heating 1102256
26 Protective intake grille 1103753 67 Cover for tank heating 1103779
27 Fastening bracket 1103733 68 Electrical assembly compl. 1103842
28 Fan blade 1103754 69 Ignition transformer 1107143
29 Fan housing 1103734 70 Terminal strip cpl. 1103843
30 Air baffle, right 1103756 73 Automatic burner 1103844
31 Air baffle, left 1103757 74 Reset key 1103845
32 Grommet 1102131 75 Phase indicator light 1103848
33 Housing lower section 1103758 76 Panel with mounting plate 1103846
34 Fastening bracket 1102906 77 Fuse 1103785
35 Outlet nozzle 1103759 78 Mains cable with plug 1101320
36 STB probe bracket 1103760 79 Thermostat socket 1101018
37 Fastening bracket 1103761 80 Strapping plug 1101019
38 L240 oil hose 1103835 83 Operating switch 1103847
39 Hose clip 1103762 85 Safety temperature limiter 1103711
40 Fuel filter (one-way) 1102146 91 Photocell mounting 1111676
41 Panel for tank nozzles 1103763 92 Solenoid valve, cpl. (Danfoss) 1103863
42 Grommet 1103764 93 Connection nipple 1/8" 1111672
43 Connection cable for MV 1102825 94 Oil pressure line (flex) 1111673
44 Fuel pump compl. 1103765 95 Connection nipple 1/4" 1111674
45 Solenoid 1103766 96 L300 oil hose 1103836
47 Pump coupling 1107129 97 Burner head 1103793
50 Condenser 1103768 98 Earth conductor connector 1103837
51 Fan motor compl. 1103737
Not shown: Thermostat plug 1101020
52 Front part, front/rear 1103770
Not shown: Cartridge filter for oil pump 1102088

18
REMKO ATK series
Maintenance log
1. Date: .................
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Signature
2. Date: .................
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Signature
3. Date: .................
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4. Date: .................
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6. Date: .................
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7. Date: .................
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8. Date: .................
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9. Date: .................
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10. Date: ...............
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11. Date: ...............
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Signature
12. Date: ...............
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13. Date: ...............
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Signature
14. Date: ...............
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15. Date: ...............
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16. Date: ...............
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17. Date: ...............
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18. Date: ...............
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19. Date: ...............
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20. Date: ...............
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Unit to be maintained only by authorised specialists in accordance with the statutory regulations.
✍
Comments: .........................................................................................................................................................
............................................................................................................................................................................
............................................................................................................................................................................
Unit type: .................................. Unit number: ...................................
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Unit cleaned - outside -
Unit cleaned - inside -
Fan blade cleaned
Combustion chamber cleaned
Burner head cleaned
Ignition electrodes adjusted
Oil nozzle replaced
Burner set and calibrated
Safety equipment checked
Safety devices checked
Unit checked for damage
All fastening screws checked
Electrical safety check
Test run

19
Technical data
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
1) Unit incl. tank heater
2) Noise measurement in acc. with DIN 43635 - 01 KL 3
Series ATK 25
Nominal heat load max.kW 25.00
Nominal heat capacity Pnom kW 22.50
Minimum heat capacity Pmin kW 22.50
Room heating emissions mg/kWh N/A
Air flow volume m3/h 1080
Temperature increase ΔT K 70
Fuel Heating oil EL acc. to DIN 51603 or diesel fuel
Max. fuel consumption l/h 2.51
Nozzle (Danfoss) 80° H USG 0.50
Pump pressure, approx. bar 11 to 12
Tank capacity ltr. 40
Energy efficiency ratio D
Auxiliary power consumption
at nominal heating capacity elmax kW 0.430
at minimum heating capacity elmin kW 0.430
in Stand-By mode elSB kW 0.000
Pilot flame power requirement Ppilot kW N.A.
thermal efficiency at nominal
heating capacity ηth,nom % 90.0
thermal efficiency at minimum
heating capacity ηth,min % N/A
Type of room temperature control Room temperature control
with external thermostat
Power supply V/Ph/Hz 230/1~/50
Elec. Max. rated current consumption A 2.3
Elec. Power consumption max.1) kW 0.43
Electrical protection (provided by the customer) A 10
Sound pressure level LpA 1m 2) dB(A) 74
Exhaust gas connection ø mm 150
Dimensions: Length mm 1265
Width mm 470
Height mm 685
Weight kg 68

REMKO QUALITY WITH SYSTEMS
Air-Conditioning | Heating | New Energies
Telephone [phone]
Telefax [phone]
E-mail [email protected]
URL www.remko.de
REMKO GmbH & Co. KG
Klima- und Wärmetechnik
Im Seelenkamp 12
32791 Lage
Hotline within Germany
[phone]
Hotline International
[phone]
We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!