Z.M. HEATERS ZM-135T Installation instructions

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
Installation & Operating Manual
ZM-135T
18 35kW Universal Oil Heater

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
OVERVIEW
1. Overheat thermostat
2. Combustion chamber lid
3. Oil feed line
4. Activation thermostat
5. Control panel & pump motor
6. Fuel tank
7. Cylinder
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8. Deflector
9. Wire ring
10. Combustion chamber
11. Vaporising pan
12. Combustion chamber base
13. Overflow drain point
14. Overflow catch pan & switch
15. Combustion fan
4
15

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
LUE INSTALLATION
ITTING
Ensure a suitable quality flue is used
(SW430 grade). Maintaining the velocity of
flue gases is important to ensure efficient
combustion.
• Min flue Ø 150mm
• Ensure the draft stabiliser is fitted
• Seal joints with suitable paste or
silicone
• Aim for minimum height of 6m
where possible
• The top of the flue should be
above roof line (apex where
possible)
• Run vertically where possible. If
this is not possible then use 45º
elbows to exit walls. Keep the non-
vertical section as short as
possible (1m)
CAUTION
Flues can be extremely hot. Safe
precautions should be taken to avoid
touching the flue.
Flues running through ceilings or walls
should be sleeved, double-skinned
(insulated) or used with high temperature
roof seal flashings where appropriate.
Avoid placing combustible materials near
the flue. Ensure good ventilation around
the heater for efficient combustion.

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
GENERAL INSTRUCTIONS
OVERVIEW
The ZM-135T universal oil heater is
designed for warm air heating of industrial
spaces like workshops, warehouses etc.
The heater will burn a wide range of fuel
oils, bio fuels and used oils. These include
engine oil, gear oil, hydraulic oil and diesel
oil.
Oil specifications: HBO I, II and III type of
viscosity not higher than SAE 80 viscosity
grade and minimum kinematic viscosity of
6.00 mm²/s at a temperature of 20ºC and
minimum ignition temperature not lower
than 40ºC and density above 0.94 g/cm³
CAUTION
Transformer oils or similar should not be
used. They contain additives that may
damage the heater or be harmful to the
operator.
It is the responsibility of the operator to
comply with applicable legislation related
to burning waste oils (including
applications for Part B LAPPC Permit
applications, or any similar future
legislation).
Care should be taken to ensure only
suitable oils are used without
contamination from petrol, water, solvents
(thinners) etc.
SA ETY
• Do not allow untrained people to
operate the heater
• Ensure all electrical safety
guidelines are followed as required
by UK law
• Ensure adequate ventilation
• Keep combustibles a safe distance
from the heater (min. 2m)
• Keep spare fuel in safe containers
away from sources of heat
• Use on level non-combustible
surfaces only
• Do not use near flammable liquids,
gases, solids, dust or compressed
gas cylinders or in explosive
atmospheres
• Never leave the heater unattended
whilst burning or connected to a
power source
• Never refill the fuel tank whilst the
heater is operating or still hot
• Do not handle when hot, the heater
will remain hot after switching off
• Do not obstruct the air inlet or air
outlets or use duct work
• Do not allow children or animals
near the heater whilst in use or hot
• To minimise the risk of electric
shock do not expose the heater to
water or wind
• Ensure the heater is switched off,
unplugged when not in use
• Be sure to follow all maintenance
schedules and use approved parts
Please note that failure to use the product
correctly may cause damage to property
or personal injury and will invalidate the
warranty.
ELECTRICAL SA ETY
It is the responsibility of the owner to
check this electrical product before use to
ensure it is safe. You must inspect power
cables, plugs, sockets etc for signs of
wear or damage. You must ensure the risk
of electric shock is minimised by the
installation of appropriate safety devices.
A residual current circuit breaker (RCCB)
should be incorporated in the main
distribution board.
Any fault rectification or electrical work
including the connection of a plug must be
carried out by a qualified electrician.

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
The Health & Safety at Work Act 1974
places responsibility for safe condition of
electrical appliances upon owners. Power
cables and plugs should always be
regularly inspected for safety. If in doubt
about electrical safety you must consult a
qualified electrician.
HEATER SA ETY CONTROLS
• 1A control panel fuse
• Activation thermostat this
ensures the oil pump will not
deliver fuel into the combustion
chamber unless the heater is hot
• Overheat thermostat this will
turn off the fuel supply but keep the
fan running at 90°C
• Overflow catch pan & switch if
the pan overflows oil will fill the
catch pan and trigger the overflow
switch to turn off fuel. It is essential
that the heater is clean, the drain
point is clear and the pan is
correctly aligned for this to work
STORAGE CONDITIONS
Please store in a clean dust free
environment with temperature -20 to 85°C
and humidity 5 - 85% and pressure 800
1200 hPa
USAGE CONDITIONS
Please ensure conditions as above except
temperature 0 - 30°C with IP65
environmental protection and good
ventilation.
INSTALLATION
1. Place the heater on a strong, flat, level,
surface of concrete or similar
2. Unpack the contents of the heater
combustion chamber carefully.
3. Level the heater, checking a small
amount of diesel oil (250ml) stays in the
middle of the pan may help.
4. Fit the draft stabiliser onto the heater
combustion outlet.
4. Install flue (as per page 3) and make
sure all joints are tight and sealed with
tape, high temp silicone or paste.
6. Make sure that the vaporising pan is
placed centrally in the combustion
chamber.
7. Seat the wire ring correctly in the
chamber
8. Place the deflector on top of the wire
ring with the centre lip pointing upwards.
9. Place the cylinder on top of the
deflector.
10. Check the power (220-240V/50Hz)
and connect the heater to the power
supply.

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
OPERATION
CONTROL PANEL
The control panel features a variable
control to adjust the heat output within its
operating range.
The five LED lights, coloured either red or
green indicate the operating status.
• Power 1
st
green LED
• Work 2
nd
green LED shows the
heater is at operating temperature
• Pump 3
rd
green LED shows the
fuel pump is operating
• Overheat red LED failure mode
• Overflow red LED failure mode
“START” button should be pressed
immediately after lighting the heater and
the “STOP” button should be pressed to
stop the fuel supply and allow the heater
to cool.
SPECI ICATIONS
Type ZM-135T
Max output 35 kW
Min output 18 kW
Airflow 1,000m3 / hr
Max oil use 3.5 ltr / hr
Min oil use 1.5 ltr / hr
Elec supply 220-240V / 50 hz
Power use 220 W
Weight 80 kg
Height 137 cm
Width 54 cm
Depth 85 cm

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
STARTING
1. Drain any water in the fuel tank (when
necessary) and fill with oil
2. Check overflow protection push down
and ensure the level returns to position
and there is a ‘click’
3. Open the top of the heater and remove
all accessible components and clean
thoroughly
4. Check the burner pipe from the oil feed
line is pushed fully into the combustion
chamber
5. Plug into the power supply
6. Ensuring the heater is cool, pour 250
ml of heating oil or diesel into the pan
7. Light the oil with paper or rag
8. Reassemble the ring, deflector and
cylinder
9. Close the lid of the heater
10. Press the “START” button
11. After 10 20 minutes the activation
thermostat will start the blower fan,
combustion fan and oil pump. The heater
will automatically run initially on low setting
12. After 30 minutes the heater will
automatically revert to the output level set
on the power output control and you will
be able to vary this
STOPPING
Press the “STOP” button on the control
panel. The pump will stop and the green
LEDs will turn off. The fan will continue to
operate until the heater has cooled down
to below the activation temperature.
SA ETY CUT-OUT & RESET
The heater will stop as above if either the
overheat thermostat or overflow switch are
triggered.
To clear the overheating signal and return
to normal operation, wait until the furnace
is cooled down and the fan is switched off
then press the push-button overheat
thermostat to reset.
Press “STOP” to turn off the LED
signalling ‘overheat’ and then start as
normal.
To restart after overflow, ensure the
heater has fully cooled and clear up any
excess oil in or around the chamber. Then
empty the overflow catch pan and press
“STOP” to turn off the LED signalling
‘overflow’ and then restart as normal.
WARNING
Never attempt to add oil directly into the
chamber or relight whilst the heater is still
hot. Vapours may cause explosion or
burns. Wait for the heater to fully cool
down first.
Never try turn off the power to stop the
heater. Use the “STOP” button so the
heater can cycle through it’s cool down
process. Remember the vaporising pan
and other parts will stay hot after the
heater has been switched off.
MAINTENANCE
DAILLY
• Clean the combustion chamber
and all internal parts
• Check the oil overflow drain point
is clear
WEEKLY
• Clean the combustion chamber
base
• Check the combustion chamber air
inlet holes are clear
• Check and clean the oil feed line
and pipe
MONTHLY
• Clean the fuel tank and check oil
pump filter

ZMH Ltd t/a Z M Heaters | www.zmheaters.co.uk | T. 00 44 (0) 333 600 44 60
WIRING TO CONTROL PANEL