Make sure to read these instructions carefully before starting/using the unit!
Our guarantee will become void when the unit supplied by us is used and
installed for inadequate purposes, or maintained incorrectly, etc.,
or if it is changed without our prior consent.
Subject to alterations!
Automatic oilheater
REMKO DZ 18 HD
Contents Page
Safety Instructions 4
Description of device 4
Provision of air heaters 5
Installation instructions 6
Starting 6
Unit shut down 7
Fuel pump 7
Change the pump to a 2 pipe system 8
Maintenance and service 8
Always keep these operating instructions near or on the unit!
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Contents Page
Burner adjustment 9
Technical data 9
Exploded view 10
Spare part list 11
Wiring diagram 12
Service and guarantee 12
Troubleshooting 13
Maintenance log 14
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Page 4
Safety Instructions
Please make sure that the relevant local building
and fire protection codes as well as the regulations
of the employer's liability insurance associations
are observed when the units are used.
◊ The units may be operated only by persons who
have been trained in this field.
◊ The unit is to be installed and operated in such a
way as to ensure that the employees are not endangered by waste gases and radiation heat and that no
fire can break out.
◊ The unit may only be installed and operated in
rooms, when the air-rate fed to the unit is sufficient
for combustion.
◊ The units may be operated only in well aerated
rooms.
◊ The permanent stay of persons in the room where
the units are installed is prohibited.
Appropriate prohibition signs are to be fitted at the
entrances.
◊ Mobile fuel reservoirs may be installed only when the
technical rules for combustible liquids are observed.
◊ The unit is to be installed only on a non-combustible
ground.
◊ The unit may not be installed and operated in inflam-
mable and explosive surroundings.
◊ A safety zone of 1.5 m around the unit, as well as a
minimum distance of 3 m from the unit's blower aperture is to be maintained, even in the case of non
combustible objects.
◊ The blower aperture of the unit may not be narrowed
or equipped with hoses and conduits.
◊ The protective air suction lattice is always to be kept
free from dirt and loose objects.
◊ Make sure not to introduce foreign matters into the
unit.
◊ Make sure not to expose the unit to direct water jets.
◊ All electric cables outside the unit are to be protected
from damage (e.g. caused by animals, etc.).
◊ Make sure always to pull the mains plug out of the
mains socket when maintenance and repairs are
carried out.
During the unit’s operation, safety devices may
neither be bridged nor blocked!
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Description of Device
The unit is fired directly with heating oil EL or diesel. It is
intended for mobile and fully automatic deployment and
operated without an exhaust system.
A fuel container is built under the unit and it is equipped
with automatic tank heating, a high-pressure atomizing
oil burner with optical flame monitoring, a low maintenance axial ventilator, a connection cable with plug, a
room thermostat socket and a fivefold filter system.
The unit is in accordance with the basic safety and
health requirements of the relevant EU – regulation and
is reliable and simple to operate.
The unit can be used e.g. in the following areas:
– for drying new buildings
– for point heating of outdoor workplaces;
– for point heating of workplaces in open, non fire-hazard
fabrication rooms and halls;
– for the temporary heating of well aerated rooms;
– for de-icing of machines, vehicles and non flammable
storage goods;
– for tempering frost-endangered parts.
Working of Device
The automatic tank heating is activated by connecting
the mains plug with a mains socket.
When the unit has been switched on or when heat is re-
quired (automatic function with room thermostat) the
supply air fan starts. The fan blows air into and along
the combustion chamber.
When the preliminary ventilation is over, the solenoid
valve opens and supplies fuel to the nozzle. The fuel,
sprayed under high pressure, is enriched by an adequate quantity of oxygen according to the heating capacity and ignited by an electric spark.
Ignition is automatically terminated as soon as a perfect
flame burns and the flames are monitored by the control
IC. After a few seconds hot air is blown out.
The control IC ensures that all the operations of the unit
are carried out fully automatically and monitored safely.
In case of any troubles, or if the flame is unstable or
tends to go out, the unit is switched off by the control IC.
The fault indicator warning lamp at the back of the unit
lights up.
When the unit has been switched off via the operating
switch or the room thermostat, the supply air fan continues running for some time to cool down the combustion
chamber and then it stops automatically.
Depending on the required heat rate the function described above is repeated automatically in the case of
an operation with thermostat.
On account of the construction type, a fixedlocation device installation is not permissible!
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4
For optimum unit operation, the device should not
be operated at an ambient temperature above 25 °C.
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Page 5
Provision for Air Heaters
For the deployment of the unit, the relevant guidelines
must be observed
1. Operating personnel
1.1 The unit must only be operated by persons who
have been trained in its operation.
2. Installation
2.1 The unit must be installed so that it can stand in a
stable position.
2.2 The unit must be installed and operated in such a
way that the employees are not exposed to the
danger of exhaust gases and radiant heat and that
the occurrence of fires is ruled out.
2.3 The unit may only be installed and operated in
rooms if a quantity of air sufficient for the combustion is supplied to the unit and the exhaust gases
are removed to the exterior.
A natural air supply sufficient for the combustion is
present if e.g.
The room contents in m² correspond with at least
10 times the nominal heat load in kW of all the
units operating in the room and if windows and
doors ensure a natural change of air.
2.4 In deviation from point 2.3, the unit can be operated without an exhaust system in rooms if these
rooms have a sufficient air supply and are well ventilated and if materials harmful to health do not
reach an unhealthy concentration.
A good natural air supply and ventilation is the case
if e. g.
The room contents in m² correspond with at least
30 times the nominal heat output of all units operating in the room and a natural change of air is
ensured through windows and doors, or
openings which are not lockable are present in
the region of ceiling and floor for the air supply
and for out going air and the size of these openings in m² corresponds with at least 0.003 times
the nominal heat output in kW of all units operating in the room.
2.5 The unit must not be installed or operated in rooms
and areas where the danger of fire or explosion exists.
3. Room drying
4. Examination
4.1 The unit must be tested by an expert as to its work
safety specific condition in accordance with the required deployment conditions but at least once annually.
4.2 The exhaust values of the burner must be checked.
5. Monitoring
5.1 When starting work, the persons commissioned
with the operation of the unit must check the unit
for obvious defects or deficiencies on the operational and safety mechanisms and check that the
safety mechanisms are present.
5.2 If defects or deficiencies are discovered, the supervisor must be informed.
5.3 In case of defects or deficiencies which endanger
the operational safety of the unit, its operation must
be terminated.
6. Installation in closed, well aerated rooms without connection to a chimney
6.1 The operation of the units is admissible when the
minimum air quantity needed for combustion and
mentioned in point 2.4 is supplied.
6.2 A safe exhaustion of the waste gases is to be ensured to exclude inadmissible pollution.
Fresh air is fed from below;
waste gases are exhausted towards the top.
7. Correct usage
7.1 The units are to be used only for heating purpose in
industrial or commercial application because of their
construction and equipment.
7.2 If specification of the manufacturer or legal regulations, are not followed or if unauthorised changes
are made on the unit, the manufacturer is not liable
for resulting damages.
The unit is to be installed only in well aerated
rooms, but not in living rooms or similar recreation
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rooms!
3.1 In deviation from point 2.3, in order to dry rooms
with an air supply sufficient for the combustion,
heating units can be operated without the exhaust
gases being removed to the exterior. In these
rooms, the permanent presence of persons is forbidden. Signs on the entrances to the rooms must
indicate that this is forbidden.
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Page 6
Installation Instructions
The units are generally to be operated in accordance
with the safety rules, the building code of the land concerned and the fire protection code.
◊ Avoid under or overpressure in the room where the
unit is installed, as this would result in combustion
troubles.
Starting
Prior to starting, the unit is to be checked to make sure
that there are no visible defects on the control and
safety devices, that the unit has been installed correctly
and that it has been properly connected to the mains.
A properly trained person is to be charged with the operation and control of the unit.
◊ Suction and blow-out cross sections may not be re-
duced
◊ It is prohibited to connect conduits or hoses to the
unit blow-out opening.
◊ Make sure that the technical regulations for combus-
tible liquids are observed when mobile fuel holders
are installed.
Outside Installation◊ The units are to be installed outside and to be pro-
tected from atmospheric effects to avoid damage.
◊ Make sure that no danger or inadmissible annoy-
ance is caused by the operation of the unit.
Room Heating
◊ For room heating, hot air generators may only be op-
erated with a room thermostat (accessories).
◊ Make sure that sufficient fresh air is fed to ensure
perfect combustion. Fresh air is to be fed preferably
through windows and doors or through sufficiently dimensioned openings in the outer wall.
Safety Distances
◊ Make sure to observe the following safety distances
to ensure a safe operation of the unit:
– towards the top, fire-retarding ceiling 1,5 m
– towards the sides, non-burning objects 0,6 m
– blow-off side, with non-burning objects 3,0 m
– suction side, for perfect air supply 1,0 m
◊ The floor and the ceiling must be from fire-retarding
materials.
Electric Connection
◊ The unit are operated with 230 V alternating current.
◊ Electric connection is carried out via a fitted mains
cable with shockproof plug.
◊ Possibly required extension cables must be selected
according to the existing cable length, the unit’s con-
necting line and the intended purpose.
All extension cables are to be used only after
having been removed from the roller.
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The electric connection of the unit is to be carried
out via a special supply point with fault current
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safety switch.
◊ Install unit in a stable position.
◊ Make sure that combustion air is supplied.
◊ Make sure that the air can be sucked in and be ex-
hausted freely.
◊ Avoid overpressure and underpressure in the room
where the unit has been installed.
◊ Make sure that enough fuel is supplied.
◊ Fill fuel tank with clean fuel oil EL or diesel with the
unit switched off.
◊ Use only appropriate and clean tanks to fill with fuel.
The unit is to be installed only in well aerated
rooms, but not in living rooms or similar recreation
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rooms!
Paraffin accumulation by low outside temperatures
The supply of sufficient liquid fuel is to be ensured, even
with low outside temperatures.
Paraffin accumulation can occur even at temperatures as low as 5 °C. Appropriate measures must
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be taken to avoid this.
◊ The built-in tank heating is only active as long as the
mains plug is connected with a functioning mains
socket.
◊ It is not possible to get rid of paraffin discharge
which is already present using the tank heating.
The requirement for this is the cleaning of the entire
fuel system.
Fuel filter
Prior to commissioning the unit and before
the tank is filled each time, the main filter (F)
must be checked for the presence of grime
or the accumulation of paraffin.
The main filter is positioning beside the filler.
Make sure to fill the fuel tank only with the
tank filter inserted into the filler neck.
Connect the unit with the current supply
1. Put operating switch 1 into “0”
1
position (OFF).
2. Connect unit plug to a suitable
mains socket.
230V/1~ 50 Hz.
F
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Page 7
Heating without room thermostat
The unit runs in continuous operation.
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3
Heating with room thermostat (accessories)
The unit runs fully automatically and depending on temperatures.
1. Connect the supplied bridge circuit
plug 3 to the thermostat socket 4 of
the unit
2. Put the operating switch into position
“1” (on).
Fuel Pump
The standard type of the pump runs in a system of
1 pipe. The required fuel is sucked in through the suction
line "S".
For the first starting and after having emptied the fuel
tank, the fuel system is deaerated through the burner
nozzle.
For this purpose the unit is switched on. After a possible
switch off through failure, the unit is restarted after having released the automatic burner relay (take care of
waiting time).
If, after the 3rd start of the unit there is another switch
off through faults, the fuel filters should be checked to
make sure that they are free from pollutions and that
they are tight.
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5
1. Remove the bridge circuit plug 3.
2. Connect thermostat plug 5 of the
room thermostat (accessories) to
the thermostat socket 4.
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3. Install room thermostat 6 in a suitable place.
The thermostat sensor may not be
exposed directly to the hot air current and not fixed directly on a cold
surface.
4. Pre-select desired room temperature on the room thermostat
5. Put the operating switch into position
“1” (on).
Unit Shut Down
1. Put operating switch into position
“0” (OFF).
Attention, important hints to the after-cooling phase
The air supply fan continues running to cool down the
combustion chamber and then stops later.
Filter
S
Perfect fuel quality is an absolute necessity for the
lubrication of the pump drive.
Suction of water residues should never take place
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and, in the case of setting, suction should not take
place of warping fine dusts (e.g. cement etc.).
Never let the pump run without feeding fuel for a
longer period. Make sure not to leave a unit with
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dry run pump unattended for a longer time.
Setting the pump pressure
The pump pressure can only be set if a manometer is
connected to the connection P. The pump pressure is
changed by turning the pressure setting screw A:
clockwise: increase the pressure.
counter clockwise: reduce the pressure.
The required pump pressure is determined according to
the heating capacity (please refer to unit type plate) and
to the nozzle size. The pressure setting screw "A" is to
be secured with the counter nut "B" after having set the
pressure.
Gasket
Cover
The fan can start several times before final switching off.
Never interrupt (except in emergency situations)
the connection to the mains before the end of the
whole after-cooling phase.
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Our guarantee does not cover damages caused
to the unit by overheating.
A
B
P
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Page 8
Change the Pump to a 2
Pipe System
If an external fuel tank is used, the pump can be
changed to a system with 2 pipes. Fuel is fed to the
pump through the suction pipeline. Fuel which is not
needed flows back through the return pipe.
Please proceed in the following way to change to the
system with 2 trains of pipes:
1. Release fuel conduits and remove fuel pump.
2. Remove the screw C and screw the plug D out.
C
3. Keep the screw C for a possible subsequent refitting
to a 1 pipe system.
4. Screw the plug D for the bypass completely into the
opening E.
5. Replace the screw C by a connection fitting.
EDV No. 1102109.
6. Reinstall the fuel pump.
7. Replace the standard main oil filter by a special oil
filter for 2 pipes system (accessories).
8. Connect the flow and the return pipe of the fuel pipe
and link these with the 2 pipe oil filter.
For the first starting and after emptying the fuel tank the
fuel pump is automatically deaerated through the return
pipe.
D
D
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Maintenance and Service
The unit is to be maintained regularly whereby some
fundamental rules are to be observed to ensure a long
service life and trouble-free operation.
After each heating period or even earlier, depending on
the deployment conditions, the entire unit including
combustion chamber and burner head must be cleaned
of soot sediments, dust and dirt.
The oil filters must also be cleaned / replaced at least
once a year or, depending on the degree of contamination of the fuel, frequently.
Prior to starting any work make sure to pull the
mains plug out of the mains socket!
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Setting and maintenance is to be carried out
only by authorised personnel!
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◊ The unit is to be kept free from dust and other de-
posits and is to be cleaned only with a dry or humid
cloth.
Do not use water jet.
◊ Do not use any aggressive cleaning agents or those
which are harmful or environmentally unfriendly.
◊ When the unit has not been used for a longer period,
the fuel tank is to be emptied, rinsed and to be filled
with clean fuel.
◊ Use only clean fuel oil EL and diesel, respectively.
Make sure to avoid paraffin formation.
◊ Empty fuel tank at least twice a year and rinse it with
clean fuel.
Do not use water!
◊ Keep burner head clean.
◊ Wearing parts such as e.g. oil filters, burner nozzle
and gaskets must be checked and, if necessary, replaced.
In any case, we recommend the replacement of the
oil jet before the start of each heating season.
◊ The oil filter in the filler neck of the fuel tank is to be
cleaned regularly.
◊ The main oil filter is to be replaced (take care of flow
direction) depending on the rate of pollution, but at
least before the start of every heating period.
The main filter is at the left side of the unit above the
fuel tank.
◊ Gauze oil filters have been installed in the fuel pump,
in the magnetic valve and in the burner nozzle.
These filters are to be cleaned by an expert.
◊ Check safety devices regularly.
◊ In the case of reducing heating capacity, formation of
smoke and/or bad ignition the unit is to be inspected
and the burner is to be adjusted.
◊ Observe regular maintenance and care intervals.
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Page 9
Cleaning the fuel tank
Adjustments of the burner head
It is necessary to clean the fuel tank:
◊ After each heating period or, depending on the deploy-
ment conditions, even earlier.
◊ Before and after extended idle periods.
◊ If the main filter frequently becomes dirty.
◊ If condensation water accumulates in the fuel.
Please proceed in the following way when cleaning the
fuel tank.
◊ Unscrew the discharging screw D (SW 22) and dis-
charge the fuel into a suitable vessel.
E
D
◊ Rinse the container several times if necessary with
clean fuel thoroughly.
Do not use water!.
◊ Please use no cleaning agents which contain
solvents.
These can destroy the inner layer of the tank.
◊ Avoid the use of high-pressure cleaners.
◊ Fit the discharging screw D (SW 22).
◊ The gasket ring E should be replaced after each
disassembly.
◊ Fill tank with clean fuel.
◊ Start unit and let it run for approx. 3 minutes.
Burner adjustment
Disassembly of burner head and nozzle
1. Loosen cap nut of fuel piping at burner head.
2. Remove photo cell and ignition cable, and remove
the burner head by turning from the rear wall of the
burner chamber.
3. When maintenance has been carried out re-assemble
all parts carefully in reverse order.
4. Pre-set air flow plate, air slide plate and the ignition
electrode distance according to the approximate indications.
Fine adjustment of air slide plate by means of CO2
indicator and soot pump.
Make sure to avoid a flame leakage outside the
combustion chamber.
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Technical Data
Nominal heat output kW 18
Air output m³/h 600
Fuel fuel oil EL or diesel oil
Fuel consumption, max. kg/h 1,52
Nozzle (60°W) USG 0,4
Pump pressure approx. bar 11
Tank capacity Ltr. 16
Electrical connection 1~ V / Hz 230 / 50
Rated current max. A 1,2
Power consumption max. 1) kW 0,29
Fuse protection (required) A 10
Sound pressure level L
Length mm 810
Width mm 380
Height mm 480
Weight kg 26
9 photo cell holder 1102126
10 clamp (thermostat) 1102128
11 recool thermostat 1101027
12 air flow plate 1108448
13 nozzle 1101823
14 air slide plate 1101706
15 burner head, cpl. 1101806
16 protecting grille 1101802
17 fan blade 1102104
18 crimp connection 1/8“ x 4 cpl. 1101861
19 copper pipe cpl. 1101860
20 cutting ring with sleeve nut 1102114
21 angle clutch 1/8" x 4 1102112
22 solenoid valve 1103718
23 double nipple 1102110
24 connecting cable with plug 1101320
25 traction relief 1108325
26 bridge circuit plug 1101019
27 thermostat socket 1101018
28 fan housing 1101803
29 filler cap 1101716
30 fuel filter (filler neck) 1101717
31 control IC with toggle switch 1108441
32 support 1108444
33 fuel filter 1102146
34 fuel hose running metres 1102156
35 protective socket, big 1101615
36 auxiliary relay 1102137
37 fuel tank 1101850
38 wheel 1101334
39 wheel cap 1101335
40 axis 1108133
41 drain screw 1102152
42 gasket ring (drain screw) 1102151
43 motor 1101805
44 hose couple 1/4“ x 8 1102109
45 clamp (hose) 1102157
46 fuel pump (with solenoid valve) 1103717
47 housing base 1101840
48 ignition transformer 1108096
49 cool jacket 1101830
50 combustion chamber 1101811
51 cover (tank heating) 1102258
52 tank heating cpl. 1102256
53 connection cable (solenoid valve) 1102825
54 pump clutch 1102936
Description
Ref.-No.
When ordering spare parts please indicate ref.-no. and machine no. (see type plate)!
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Page 12
Wiring Diagram
BS = operating switch NK = recool thermostat
F = photo cell NTC = resistance
HS = auxiliary relay TH = thermostat socket
IC = control-IC THT = thermostat (tank heating)
KL = terminal strip THZ = tank heating
M = motor ZT = ignition transformer
MV = solenoid valve
Service and Guarantee
Any claims under guarantee regarding materials can be
accepted only when the orderer or his customer has
filled in completely the “guarantee certificate” which is
enclosed with every REMKO-heater and has returned it
to REMKO GmbH & Co. KG in due time after the unit’s
sale and commissioning.
An operation/use other than that indicated in these instructions is prohibited!
In the case of non-observation we will not be held responsible and our guarantee will become void.
The units are factory tested on faultless function. If any
failures occurs though which cannot be eliminated by the
operating person, please contact your dealer or contact
person.
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Page 13
Troubleshooting
Cause: Trouble:
– unit does not start.
– motor is running but burner will not be ignited.
– unit stops during operation.
fault LED of the control IC (unit backside) lights up.
– smoke forming at the blow-out cone.
– flame leakage at the blow-out side (front).
– fuel consumption is too high.
– unit can’t be switched off.
The mains plug has been taken out of the mains socket before carrying out any work regarding the unit.
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Setting and maintenance is to be carried out only by authorised experts!
Clean unit -surfaceClean unit -interiorClean fan
Clean combustion chamber
Clean burner head
Adjust ignition electrode
Replace nozzle
Clean / replace fuel filter
Adjust / measuring burner
Check safety facility
Check protection guards
Check unit for damage
Check fastening screws
Electric safety-inspections
Test run