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1
HOT AIR CANNON « K-37 » - DIesel
Ref 93444
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InstructIon booklet - en
Hot AIr cAnnon « k-37 » - DIesel
ref 93444
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2
HOT AIR CANNON « K-37 » - DIesel
Ref 93444
NL Dit symbool op uw apparaat betekent: niet afdekken!
EN This symbol on your device means: do not cover!
DE Dieses Symbol auf Ihrem Gerät bedeutet: Nicht abdecken!
FR Ce symbole sur votre appareil signifie : ne pas couvrir !
DA Dette symbol betyder: Må ikke tildækkes!
SV Den här symbolen betyder: får ej övertäckas!
NO Dette symbolet på apparatet betyr: Må ikke dekkes til!
FI Tämä laitteessa oleva symboli tarkoittaa: ei saa peittää!
HU A készülékén lévő szimbólum jelentése: ne takarja le!
CS Tento symbol na vašem zařízení znamená: nezakrývejte!
PL Ten symbol na urządzeniu oznacza: nie zakrywać!
SK Tento symbol na vašom zariadení znamená: nezakrývajte!
RO acest simbol ce apare pe aparatul dumneavoastră înseamnă: nu acoperiţi
RU Этот символ на вашем устройстве означает: не накрывать!
IT Questo simbolo sul dispositivo indica: non coprire!
EN
Contents
Safety instructions . . . . . . . . . . . . . . . .
. . . . . . 35
Description . . . . . . . . . . . . . . . . . . .
. . . . . . 37
Technical data . . . . . . . . . . . . . . . . . .
. . . . . . 38
Assembly. . . . . . . . . . . . . . . . . . . . .
. . . . . . 38
Working principle . . . . . . . . . . . . . . . . .
. . . . . . 40
Fuel . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . .40
Electrical connection . . . . . . . . . . . . . . . . . .
. . . 41
Instructions for use . . . . . . . . . . . . . . . .
. . . . . .41
Maintenance . . . . . . . . . . . . . . . . . . .
. . . . . . 42
Problems and solutions . . . . . . . . . . . . .
. . . . . . .48
Components . . . . . . . . . . . . . . . . . . .
. . . . . . 65
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Safety instructions
Important: Read and follow these instructions carefully before assembling the heater
and using it. Failing to follow the safety instructions could lead to serious personal
injury or even death and/or damage being caused to the heater. When using the
heater, basic safety measures must always be taken in order to prevent the risk of
fire, electrical shock, personal injury and/or the heater becoming damaged.
Keep all instructions in a safe place so that they can be consulted in the future.
Above all: always ensure there is adequate ventilation. The heater uses oxygen.
If this is not supplied in sufficient measure, it will produce carbon monoxide.
Inadequate ventilation can therefore cause carbon monoxide poisoning and this can
lead to serious illness or death. Always ensure that the heater and the working area
are supplied with continual fresh air from outdoors. Make sure there is a 2,800 cm²
(so 70 x 40 cm) opening to the outside for every 100,000 Btu/hour. The first signs of
carbon monoxide poisoning are flu–like symptoms: headaches, dizziness and
nausea. If you are aware of these symptoms, your heater may not be working
correctly or there is inadequate ventilation. You must ensure that fresh air is provided
immediately! Have the heater checked and/or ensure that there is adequate
ventilation. One person may be more sensitive to carbon monoxide than another.
Pregnant women, people with heart or lung problems or anaemia, the elderly and
people under the influence of alcohol are at an increased risk. Never use the heater
in living or sleeping areas!
Know you heater: ensure that you understand the instruction booklet and the labels
on the heater. This will ensure you are aware of where it can be used, its limitations
and any potential hazards.
Never use the heater in a dangerous environment: do not use in the rain or in
damp/wet locations. Do not use in places where flammable liquids, gases,
substances or other flammable items can be found: this may pose an explosion risk!
Always ensure there is sufficient safe space around the heater.
Keep children and inexperienced persons out of the vicinity of the workplace:
all visitors must be kept at a safe distance from the heater.
Store the heater safely when it is not in use: keep it in a dry, locked cupboard, out
of the reach of children.
Stay alert: always be aware of what you are doing and use your common sense. Do
not use or operate the heater if you are tired or under the influence of alcohol, drugs,
or medicines that impact upon your response times.
Make sure that you remove the plug from the socket: always remove the plug
when the heater is not being used, before you carry out maintenance or replenish
fuel.
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Prevent unexpected starting: check that the switch is OFF before you insert the
plug into the socket.
Use the heater for its intended purpose only. Do not make any changes or
connect anything to it. If you are not sure of whether the heater can be used, contact
your supplier or the importer.
Only have your heater repaired by a qualified person: the heater fulfils safety
requirements. That is why repairs must only be carried out by a suitable, qualified
individual, using original parts. Deviations from this regulation will invalidate the
guarantee and the supplier and manufacturer will no longer be liable for any
consequences.
And also:
Every time you use it, check that the heater is in good condition and is working
properly. Have damaged parts repaired or replaced immediately.
Only connect the heater to a socket which corresponds to the voltage and
frequency that is stated on the heater’s specification plate. Only use an earthed,
3-pin socket. If you have to use an extension cable, make sure it is of the
appropriate thickness!
Only use paraffin or diesel in your heater, in accordance with the instructions in
this booklet.
Keep the front of the heater at least 2.5 metres from any flammable materials
such as wood, plastic, paper, tent cloth, etc and the back and upper sides at least
125 cm from this type of material.
Always position the heater on a flat, stable and horizontal surface.
Do not use the heater in the vicinity of flammable materials, liquids, gases or
pressurised gas pipes.
Do not use the heater in an enclosed space, living area, ground floor, cellar or
space under ground level.
If using in locations with (too) little ventilation, too much moisture etc, special
measures must be taken in relation to the supply and removal of air, soot,
extinguishing etc. Consult a qualified expert in this instance.
Do not allow untrained, inexperienced people to operate the heater and do not
allow it to be operated unless all covers, lids and so on have been correctly
installed.
Never move the heater and do not touch if it is in operation or is still hot. Unplug
and then leave to cool.
Never transport the heater with fuel in the tank!
Do not damage the electrical cable. Do not tilt the heater using the cable and do
not pull on the cable to remove the plug from the socket. Keep the cable away
from heat, oil and sharp edges. Do not use the heater if the cable is damaged but
make sure it is replaced by your supplier or a recognised electrician in order to
prevent risks.
Never leave a working heater unsupervised; unplug the device when leaving the
workspace. Do not switch the heater off by removing the plug from the socket;
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HOT AIR CANNON « K-37 » - DIesel
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always use the on/off switch. Always remove the plug from the socket if the
heater is not in use.
Do not replenish the fuel when the heater is working or is still hot. Switch it off,
remove the plug from the socket and leave to cool. The heater becomes
extremely hot during use!
Do not overfill the fuel tank and remove any spilt fluid immediately.
Never block the heater’s inlet and outlet openings!
Do not use a pipe or similar on the front or back of the heater.
Do not allow children or animals in the vicinity of the heater, particularly if it is on
or still hot.
WARNING! Never expose the heater to water, rain, drips or moisture of any
variety. This could lead to an electrical shock!
The heater (and cap and blower opening) become extremely hot. Never touch the
heater during or shortly after operation but leave to cool and wear protective
gloves.
Make sure, after use, that the heater has been switched off properly and store it in
a safe and dry environment out of the reach of children.
Be aware that heaters that are equipped with a thermostat may turn on at any
moment.
People with respiratory problems must first consult a doctor before using the
heater.
NEVER use fuel such as petrol, benzene, paint thinners or other oil compounds in
the heater. This may lead to a risk of explosion.
WARNING!
The warnings and regulations provided in this booklet are only general instructions;
they do not cover all of the specific situations that may occur. That it why common
sense and prudence are vital when using this heater!
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Technical specifications
always use the on/off switch. Always remove the plug from the socket if the
heater is not in use.
Do not replenish the fuel when the heater is working or is still hot. Switch it off,
remove the plug from the socket and leave to cool. The heater becomes
extremely hot during use!
Do not overfill the fuel tank and remove any spilt fluid immediately.
Never block the heater’s inlet and outlet openings!
Do not use a pipe or similar on the front or back of the heater.
Do not allow children or animals in the vicinity of the heater, particularly if it is on
or still hot.
WARNING! Never expose the heater to water, rain, drips or moisture of any
variety. This could lead to an electrical shock!
The heater (and cap and blower opening) become extremely hot. Never touch the
heater during or shortly after operation but leave to cool and wear protective
gloves.
Make sure, after use, that the heater has been switched off properly and store it in
a safe and dry environment out of the reach of children.
Be aware that heaters that are equipped with a thermostat may turn on at any
moment.
People with respiratory problems must first consult a doctor before using the
heater.
NEVER use fuel such as petrol, benzene, paint thinners or other oil compounds in
the heater. This may lead to a risk of explosion.
WARNING!
The warnings and regulations provided in this booklet are only general instructions;
they do not cover all of the specific situations that may occur. That it why common
sense and prudence are vital when using this heater!
Description
Capacity BTU 125 000
kW 36,625
Connected power V/Hz 230/50
Fuse A 5
Max. heated area m
3
900
Fuel Diesel and Parafn
Capacity of fuel tank L 40
Fuel consumption L/h ± 4
Max. working pressure
per tank
h 10
Dimensions cm 98 x 39 x 61,5
Weight kg 24,5
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HOT AIR CANNON « K-37 » - DIesel
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Assembly OK37T
This model is equipped with wheels and push-bars. Wheels, push-bars and assembly
materials can be found in the packaging.
Slide the axle through the wheel support-frame.
Secure the wheels to the axle, so
that the wheels’ bulged hubs face
towards the frame.
Place the flat rings over the axle
ends, push the split pins with the
long ends through the hole in the
axle and push them tight.
Place the heater on the wheel
support-frame so that the air inlet
(at the back) is positioned over the
wheels.
Line up the holes in the fuel tank
flange with the holes in the frame.
Place the push bars over the fuel
tank flange.
Stick the screws through the push
bar, the fuel tank flange and the
wheel support-frame (see diagram)
and hand-tighten a nut under each screw.
Once all screws are in place, tighten all nuts with a spanner.
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Working principle
Fuel system: The heater is fitted with an electric air pump that pushes air through
the air pipes along the fuel inlet and forces the fuel from the tank into the fuel nozzle.
This mixture of fuel and air is then sprayed into the combustion chamber as a fine
mist.
Ignition mechanism: The electronic ignition creates a charge on a specially
developed electrode/sparkplug. This uses a spark to ignite the mixture of fuel and air,
as described above.
Air system: The heavy motor drives a ventilator that sends air into and around the
combustion chamber. The air is then heated up and driven out of the front of the
heater.
Safety devices:
Temperature limiter: This heater is fitted with a temperature limiter that switches the
heater off if the internal temperature rises to an unsafe level. If this safety device is
triggered, it may mean that your heater needs to be serviced.
If the temperature has dropped to under the reset-temperature, the heater can be
used again.
Electrical system safeguard: The heater’s electrical system is protected by a safety
fuse that is attached to the PCB system. The fuse safeguards the PCB system and
other electrical components against damage. If the heater does not work, first check
the fuse and replace it with a similar fuse if necessary.
Flame control: The heater uses a photoelectric cell to keep an eye on the
combustion chamber when the heater is operating. It will switch the heater off if the
flame goes out and will send an error message to the display.
Fuel
OK-heaters work with paraffin or diesel; paraffin gives the cleanest combustion. Be
aware that the more dust and dirt that is contained in the fuel, the more ventilation
will be required! Use the cleanest fuel possible.
Note: paraffin may only be stored in blue containers; red containers are associated
with petrol!
NEVER use other fuels such as petrol, alcohol, oil compounds or similar in this
heater; this could lead to fire or explosion!
NEVER store paraffin in direct sunlight of near a source of heat.
Do not store paraffin in living/work areas but in a well-ventilated area such as a
shed, storage area or similar.
NEVER use paraffin from the previous season. Paraffin deteriorates in quality and
will not burn properly as a result.
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HOT AIR CANNON « K-37 » - DIesel
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If you can, use 1-K paraffin in this heater. Other premium quality paraffin may also
be used.
Electrical connection
Before use, check the device and the electrical cable, plug and socket for any
damage or wear and tear and do not use if you discover any problems.
This heater is fitted with a standard 230V - 13A plug. Choose an impact-resistant
type if it ever needs replacing. The electricity network to which the heater is
connected must be equipped with an earth leakage circuit breaker (30 mA) and the
socket must be earthed.
Repairs to the electrical system must always be carried out by a qualified electrician!
Before use, always check that the socket is of the correct voltage, is earthed, has
an adequate fuse (5A) and forms part of a mains network with an earth leakage
circuit breaker.
If you have to use an extension cable, make sure that the cable is of a suitable
width which is appropriate for the voltage and amperage.
Instructions for use
Starting the heater:
Place the heater on a stable, flat and horizontal surface.
Remove the tank cap.
Fill the tank with paraffin or diesel.
Replace the cap on the tank.
Note: Never replenish fuel if the heater is on or is still hot. Always wait until the
heater has cooled down before topping up the fuel.
Never fill up the fuel in an enclosed area; always do it outdoors.
Do not overfill the heater and remove any spilt fuel immediately, before using the
heater.
Now insert the plug into the socket.
Set the thermostat to the desired setting.
Press the ON/OFF switch to ON. The light will come on and the heater will start.
Important: Ignite the heater for the first time outdoors and then let it run for at least
10 minutes. Oil and similar substances used during the manufacturing process will be
burnt off and may produce toxic gases.
If the heater won’t start, the thermostat regulator may be set too low. Turn the
thermostat button up and try again. If it still doesn’t start, set the switch to OFF and
then switch back to ON.
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HOT AIR CANNON « K-37 » - DIesel
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Note: the heater’s most important electrical components are protected by a fuse. If
the display and the light fail to come on even though there is power to the heater,
check the fuse before anything else.
Stopping the heater:
Press the ON/OFF switch to OFF and remove the plug from the socket.
Restarting the heater:
Wait at least 10 seconds after you have switched the heater off.
Repeat the steps set out under: ‘Starting the heater’.
ALWAYS ENSURE THERE IS ADEQUATE VENTILATION!
At least 2,800 cm² per 100,000 BTU/hr
Note: the heater’s most important electrical components are protected by a fuse. If
the display and the light fail to come on even though there is power to the heater,
check the fuse before anything else.
Stopping the heater:
Press the ON/OFF switch to OFF and remove the plug from the socket.
Restarting the heater:
Wait at least 10 seconds after you have switched the heater off.
Repeat the steps set out under: ‘Starting the heater’.
ALWAYS ENSURE THERE IS ADEQUATE VENTILATION!
At least 2,800 cm² per 100,000 BTU/hr
Maintenance
Warning! Air pollution that is sucked into the heater can impact upon the heat if
gives off, damage the heater and lead to health problems.
For example: plaster dust or paint chips can damage the engine bearings or block
the filters and contaminate the combustion chamber; this will lead to an irregular
flame and could pose a risk to health. This type of damage is not covered by the
guarantee and any costs for cleaning the heater will have to be paid in full.
Warning! Never carry out maintenance work if the plug is in the socket or if the
heater is still on!
The degree of maintenance work that has to be carried out is largely dependent on
the level of contamination in the area in which the heater is used. The frequency
indicated is calculated on the basis of a clean room; if the heater is used in a dusty
environment, maintenance should be carried out more frequently in order to extend
the lifetime of the heater.
If parts have to be replaced, always ensure that original parts are used!
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Air intake filter
After a maximum of 500 operational hours, wash
in a mild, soapy solution and dry thoroughly or
replace. Do so more often if used in dusty
environments!
Remove the screws from the sides of the
heater
Lift the upper cover
Remove the fan grille
Wash/dry or replace the air inlet filter
Replace the grille and cover in their usual
positions.
Air intake filter/lint filter
Replace after a maximum of 500 operational
hours or once a year if used in a dusty
environment.
Remover upper cover and fan grille
Remove the screws and the filter cover
Remove the filter cover
Replace the air inlet filter and lint filter
Replace filter cover, fan grille and upper
cover in their usual positions.
Fan blades
Clean at least once a season or whenever necessary.
Remove upper cover
Use an Allen key to remove the
screws that secure the fan blades to
the engine axle
Slide the fan off the motor axle
Clean the fan with a soft cloth, slightly
moistened with a gentle soapy
solution. Be careful not to move the
blades out of position!
Let the fan dry thoroughly
Secure the fan to the motor axle
Place the outlet from the hub on the
end of the motor axle
Secure the screws that hold the fan blades on the motor axle.
Secure the screws tightly (4.5-5.6 Nm)
Put the upper cover back in position.
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HOT AIR CANNON « K-37 » - DIesel
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Nozzle
Clean the nozzle as often as required.
Remove upper cover
Remove fan
Disconnect the fuel and air hoses from the burner head
Take sparkplug caps (with the ignition cables) off the sparkplugs
Loosen the three screws and remove the burner head from the combustion
chamber
Remove the sparkplug from the burner head
Carefully remove the nozzle from the burner head
Blow compressed air through the front of the nozzle – this will remove the dirt.
Replace the nozzle in its usual position in the burner head and screw it in place
(9-11 Nm).
Place the sparkplug back in the burner head
Secure the burner head on the combustion chamber
Replace the sparkplug caps with the ignition cables on the sparkplug
Secure the fuel and air hoses on the burner head
Replace the fan and upper cover in their usual positions.
Spark plug
Clean and adjust or replace the sparkplug after a maximum of 600 operational hours.
Remove upper cover
Remove fan
Take sparkplug caps and the ignition cables off the sparkplugs
Remove the sparkplug from the burner head
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HOT AIR CANNON « K-37 » - DIesel
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Clean and adjust the sparkplug; the
opening must be 3.5 mm.
Secure the sparkplug in the burner
head
Reposition the sparkplug caps with
the ignition cables on the sparkplug
Replace the fan and upper cover in
their usual positions.
Photoelectric cell
Clean the photoelectric cell as often as required but at least once a year.
Remove upper cover
Remove fan
Disconnect the photoelectric cell and its attachment bracket
Clean the lens with a cotton swab.
Replace the photoelectric cell in its usual position
Replace the fan and upper cover in their usual positions.
:
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HOT AIR CANNON « K-37 » - DIesel
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In order to replace the photoelectric cell follow the previous instructions and:
Remove the cover from the
operating panel
Disconnect the wiring from the
ON/OFF switch (does not apply to
all models)
Disconnect the photoelectric cell
wiring from the operating panel
and remove the photoelectric cell
Install the new photoelectric cell
and connect the wiring with the
operating panel
If necessary, connect the wiring to
the ON/OFF switch
Secure the cover on the operating
panel
Replace the fan and upper cover
in their usual positions.
Fuel filter
Clean or replace at least twice a season and more frequently if necessary.
Remove the cover from the operating panel
Disconnect the wiring from the ON/OFF switch (does not apply to all models)
Pull the fuel pipe from the
neck of the fuel filter
Turn the fuel filter 90°
anticlockwise then pull and
remove from the tank.
You may clean the fuel
filter with clean fuel but you
are advised to replace the
old filter with a new one.
Replace the filter in the
tank
Slide the fuel pipe over the
neck of the filter
If necessary, reconnect the
wiring to the ON/OFF
switch
Secure the cover on the operating panel and screw tight.
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Adjusting pressure on compressor pump
A pressure meter must first be installed in order to adjust the compressor pump
pressure. Order an original from your dealer.
Remover upper cover and fan grille
Remove the manometer plug on top of the filter lid
Install the manometer
Start the heater
Let the motor run at full power
Adjust the pressure with a screwdriver (flat head)
Turn the valve in a clockwise direction in order to add pressure; turn anti-
clockwise to reduce pressure
Set the right pressure for your heater model:
Model
Pump pressure
OK22T 4.0 psi
OK37T
5.0 psi
OK63T
7.0 psi
Turn the heater off
Remove the manometer and replace the plug
Replace the fan grille and upper cover in their usual positions.
Long-term storage
Undo the tank cap on the tank
Use a siphon or similar pump that is suitable for fuel to suck all of the fuel out of
the tank
Pour a little clean diesel or paraffin into the tank and rinse out
Empty the tank completely
Never mix water through the fuel as this will rust the tank!
Never leave fuel sitting in the tank if the heater is to be out of use for a while; old
fuel can damage the heater!
Store the heater in a safe, dry and well-ventilated location, outside the reach of
children.
Make sure that the storage area is not dusty and does not contain any corrosive
vapours
Store the heater in the original packing
Store the instruction booklet in an accessible place
5.0 psi
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Problems and solutions
Error message E1
No fuel in the tank
Photoelectric cell lens dirty
Filters dirty
Nozzle dirty
Contaminated fuel
Ignition defective
Incorrect pump pressure
Photoelectric cell defective
Bad electrical connection between
ignition and PCB
Ignition wire not connected to
sparkplug
Fill the tank
Clean the lens
Clean/replace filter(s)
Clean/replace nozzle
Clean out tank with clean diesel
Repair/replace ignition
Check pump pressure and adjust if
necessary
Check and replace photoelectric cell
if necessary
Check electrical connection and
repair where necessary
Check the connections
Error message E2
Bad electrical connection between
temperature sensors and PCB
Defective temperature sensors
Thermostat settings too low
Check and repair electrical
connections if necessary
Check and replace sensor if
necessary
Set thermostat higher
Error message LO
Temperature is less than -9oC Normal. Wait until temperature rises
to working temperature
Error message HI
Temperature is above 50°C Normal. Wait until temperature drops
to working temperature
Light flickers
Electrical error
Reset and start again
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