MAXPEEDINGRODS MXR-2Y User manual

Since 2006
Since 2006
FOCUS ON PERFORMANCE
PARKING
AIR HEATER

Table of Contents
01
02
03
04
05
06
Introduction 05
08
10
15
27
12
Installation Notes
Technical Parameters
Heater Structure and Working Principle
Installation
Control Panel Usage
PARKING AIR HEATER
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PARKING AIR HEATER
01
ATTENTION
Information on the devices and accessories included in this
manual is provided for reference only actual products are subject
to change without prior notice.
After opening the product's packaging box for the first time, please
ensure that the main device and spare parts are included in the
packing list.
Please read this manual carefully; if you have any questions,
contact your dealer as soon as possible.
07 32
Precautions & Maintenance

NO : Name Specification Unit Quantity
Main Device 12V 2KW/5KW Set 1
Wire Harness
LCD Control Panel
Fuel Pump
Fuel Pump Rubber Clip
Air Filter
Air Inlet Pipe
Exhaust Pipe
Hot Air Outlet Tubing
Air Outlet Grid
Mounting Plate
Fuel Tank
Exhaust Silencer
Fuel Hose
Installation Kit
T connector
Oil extractor
Exhaust wrap
3m
12V
ø 25 mm
ø 24 mm × 600 mm
ø76 mm(5KW)/ø 60 mm(2KW)
ø76 mm(5KW)/ø 60 mm(2KW)
9L
3.5m
2m
Set
Piece
Piece
Piece
Piece
Piece
Piece
Piece
Piece
Piece
Piece
Piece
Piece
Set
Piece
Roll
Piece
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
3
Remote Controller Piece 1
4
5
Fuel Filter Piece 1
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Gloves Pair 121
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Packing List of Split Heater
Model: MXR-1F
Note : Please confirm these component counts as soon as you receive the package.Note : Please confirm these component counts as soon as you receive the package.
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Packing List
Packing List of All-in-one Heater
Model: MXR-2Y
NO : Name Specification Unit Quantity
Main Device 12V 5KW Set 11
LCD Control Panel Piece 1
3
Wire Harness
12V 5KW
3m Set 1
2
Remote Controller Piece 1
4
Air Inlet Pipe ø25mm Piece 1
5
Exhaust Pipe ø24mm x 600mm Piece 1
6
Hot Air Outlet Tubing ø76mm Piece 1
7
Air Outlet Grid Piece 1
8
Air Filter Piece 1
9
Set
Installation Kit 1
10
Roll
Exhaust Wrap 111
Pair
Gloves 1
12
Model: MXR-1F

INTRODUCTION
01
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05
1.1 Overview
The main unit of this parking air heater (the
"heater") is a small, microprocessor-controlled,
fuel-burning furnace. Its heat exchanger is located
in a hood-shaped case with a separate air
passage. Cold air is sucked into this air passage by
the fan, and hot air blown out, forming a heating
system independent of the vehicle's original
heating system. In this way, a vehicle’s cab or
passenger compartment can be heated whether
or not the engine is running. A schematic diagram
is shown in Fig. 1.
Fig. 1
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Model : MXR-1F Model : MXR-2Y
1.2 Range of Application of the Heater
Pre-heating, de-misting windows
Heating and keeping warm the following:
– All kinds of automobiles and trailers
– Construction machinery
– Agricultural machinery
– Camper vans
– RVs
– Boats, ships, yachts
The air heater operating independently of an engine isintended
for installation in the following vehicles, depending on its
heating output:
– All types of vehicles (max. 8 seats + driver’s seat) and their trailers
– Construction machinery
– Agricultural machinery
– Boats, ships and yachts (only diesel heaters)
– Camper vans
1.3 Purpose of Heater
Model : MXR-1F

INSTALLATION NOTES
02
1. RISK OF FIRE, BURNS, EXPLOSION AND POISONING
CAUTION
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The heater must not be used in the following situations and places:
For constant heating in enclosed spaces (to avoid risk of poisoning), such as:
In the presence of flammable vapor or dust :
For directly heating and drying (to avoid danger/damage):
Residential rooms Garages Work huts, weekend
homes and hunting huts Houseboats, etc.
Fuel depots Carbon storehouses Timber storehouses Granaries and
similar places Diesel/Petrol/Gas stations
Living things (people, animals etc.) Blowing hot air into containers
1.4 Unsuitable Situations and Places
C
Articles and objects
2. DO NOT disconnect the power during operation.
3. DO NOT use a cigarette lighter to start the heater.
4. Seal any gaps between the mounting plate and the
vehicle's body.
5. To avoid accidents, do not leave the heater unattended
for at least 10 minutes after the first start up.
6. DANGER: To avoid injury from moving parts, shut off the
equipment before removing this cover.
PARKING AIR HEATER
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– TURN OFF the heater before refuelling.
– DO NOT touch the heater while it is in use to avoid scalding.
– DO NOT use the heater in confined or poorly ventilated areas.
– DO NOT blow hot air directly at people, animals or objects
sensitive to temperature.
– Make sure that the air intake and exhaust ports are clear of
any obstruction.
– Keep children, inflammables and explosives away.
– Operate the heater only when the installation is completed.
– Route the exhaust outlet to the outdoors to prevent intake of
exhaust fumes and carbon monoxide poisoning.

PARKING AIR HEATER
09
– The part of any structure or any component near the heater must be
protected from excessive heat exposure and possible fuel or oil
contamination.
– The heater must not pose a fire hazard even if it overheats. This
requirement is considered fulfilled if adequate clearances are
allowed for all components during installation, sufficient ventilation
is provided and fireproof materials or heat shields are used.
– All appropriate precautions must be taken when positioning the
heater in order to minimize the risk of injury to persons or damage to
property.
Heater and Component Placement
– The fuel intake connection must not be located in the passenger
compartment, and must be sealed with a properly-closing lid to
prevent any leakage of fuel.
Fuel Supply
– The air for the heater’s combustion chamber must not be sucked in
from the vehicle’s passenger compartment.
– The air intake must be arranged or protected in such a way that it
cannot be blocked by other objects.
Combustion Air Intake
– The heater’s air supply must consist of fresh air or circulated air and
must be sucked in from a clean area which cannot be contaminated
by exhaust fumes from the engine, the combustion heater or any
other source within the vehicle.
– The intake pipe must be protected using a grill or other suitable
equipment.
Cold Air Intake
– The hot air pipes within the vehicle must be arranged or protected
such that they do not create risk of injury or damage through being
touched.
– The air outlet must be arranged or protected in such a way that it
cannot be blocked by objects.
Hot Air Outlet
– Combustion heaters and their exhaust pipes must be designed,
situated, protected and/or covered so that risk of overheating or
ignition of the vehicle’s load is minimized.
Avoid Overheating and Ignition
Fuel tanks for supplying the heater shall conform to the following
regulations:
– In the event of any leakage, fuel shall drain to the ground without
coming into contact with hot parts of the vehicle or its load;
– Fuel tanks containing diesel shall be equipped with an effective
flame trap at the filler opening, or with a closure allowing the
opening to be kept hermetically sealed.
Fuel Tanks
– The exhaust system and exhaust pipes shall be laid out or
protected to minimize any danger to the load due to heating or
ignition.
– Exhaust system components situated directly below the (diesel)
fuel tank shall be protected by a thermal shield, or shall be
installed with at least 3.93 inches (100mm) clearance from it.
– The exhaust outlet must be properly situated to prevent any
ingress of exhaust fumes into the vehicle interior through the
ventilation system, warm air intakes or open windows.
Exhaust System and Exhaust Pipe Layout
TECHNICAL PARAMETERS
03
PARKING AIR HEATER
10
CAUTION
Technical data safety instructions!
Failure to comply with this technical data can result
in malfunction.
Where no limit values are given, the technical data
listed is subject to the tolerances normally applicable
to heaters of ±10% for nominal voltage, and at an
ambient temperature of 20 °C

Serial
No. Model MXR-1F MXR-2Y
Fuel Diesel ONLY1
Style Split style
Operating Ambient Temperature -40°C to + 40°C
2
3
Heating Capacity 2KW/5KW
4
Rated Voltage 12V
5
Fuel Consumption 2KW: 0.16-0.24L
5KW: 0.16-0.48L
6
Starting Power Consumption 9-11A
7
Operating Power Consumption 1-3A
8
Fuel Tank Capacity 9L
All-in-one Style
5KW
12V
0.16-0.48L
9-11A
1-3A
5L
9
HEATER STRUCTURE AND
WORKING PRINCIPLE
04
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4.1 Working Principle
After the heater is started, the glow plug plug begins to work,
the fuel pump starts to supply fuel, and the combus-
tion-supporting fan intakes air from outside. Fuel is burned in
the combustion chamber to generate heat, which is taken
away by the aluminum heat exchanger. Internal air driven by
the heat exchange fan passes through the surface of the
heat exchanger to carry the heat to where it is needed. The
exhaust gas is discharged through the exhaust pipe.
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4.3 Internal Structure
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1. Outer Fan Wheel
2. Fan Limit Bracket
3. Fan Motor
4. Fan Bracket
5. Inner Fan Wheel
6. Sealing Gasket
7. Combustion Chamber
8. Gasket
9. Cylinder
10. Temperature Sensor
11. Controller Board
12. Controller Board Screw
Fig. 3
4.2 Heater Structure
1.Main Engine 2.Suction Hood 3.Upper Hood
4.Bottom Hood 5.Air Outlet 6.Rear Hood {Hood:Case/Shell}
Fig.2
1
4
5
2
36
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INSTALLATION
05
MXR-2Y is all-in-one style, which only
require connecting to the power supply
and exhaust pipe to use, thus omitting the
installation steps. We will mainly introduce
the installation steps of MXR-1F.
5.1.1 Installation Position
The main device can be installed inside or outside of the
vehicle. However, when it is installed outside the vehicle, a
shield (not included) to prevent damage due to external
forces (e.g. stone damage) should be provided. The heater
must not be immersed in water or exposed to rain. If the
heater suffers corrosion due to rain or other water, immedi-
ately cease using it and have all of its components inspected
by a qualified technician.
5.1 Installation Of Heater Body
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5.1.2 Spacing Requirements
Adequate space for installation and maintenance must be provided. For installation space requirements, please refer to
Fig.4. Ensure that there are no potentially interfering objects located in the gap between the bottom surface of the main
device and the vehicle mounting surface.
A.Cold Air Inlet B. Hot Air Outlet C. Combustion Air Inlet
D. Exhaust Outlet E. Fuel Inlet F. No-interference Area
Fig.4
115(2kw)/145(5kw)
115(2kw)/145(5kw)
≥80 ≥50
B
CED
F
F
A
340(2kw)/390(5kw)
≥75
115
(2kw)
/
145
(5kw)
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Fig.5
Recommendations: Use of high temperature sealant to seal the installation gap after the heater has been mounted is
recommended.
44
12
56
18
7
ø
ø25
7
ø
ø25
5.1.3 Sealing
A good seal between the main device and the vehicle mounting surface is necessary. A flange gasket (as shown in Fig. 5)
supplied by the manufacturer, must be installed between the device and the vehicle mounting surface. The installation
surface must also be sufficiently flat, with unevenness of less than 1 mm across the base of the main device. After drilling
installation holes, please confirm that the evenness meets this requirement, then rotate the four M6 nuts provided by the
manufacturer until tightened to a tightening torque of 6Nm+1Nm. The position of installation holes is shown in Fig. 6.
5.1.4 Mounting Plate
A mounting plate is needed if the thickness of the installation panel is < 1.5 mm. The gap between the mounting plate
and the car body must also be sealed (as shown in Fig. 6).
Fig.6
10- 8
ø
140 125
18
335638
12
44
153
168
2- 30
ø
The mounting gasket must be replaced with a new gasket when the main device is reinstalled.
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Fig.8
5.2 Air Heating System Installation
5.2.1 Air Circulation Mode
In order to ensure that the air duct is unobstructed, the
connection mode should be installed and fixed by
professionals, it is suggested that the heater should be
installed with independent external circulation or
internal circulation.
5.2.2 Temperature Resistance
If an external heating air pipe is attached to
the heater, it shall be made of material
capable of resisting a temperature of 150 °C.
5.2.3 Cold Air Intake
For a heater operating in internal circulation
mode, measures shall be taken to prevent hot air
re-entering the air inlet port (as shown in Fig. 8).
Inlet air shall be drawn from a cold area of the
compartment. If, in this mode, no air inlet pipe is
attached, an air inlet hood with a grill must be
installed directly onto the main device.
a) b)
5.1.5 Installation Orientation
The installation orientation of the heater body is shown in Fig. 7, it must be noted that the inclination angle of both sides must
be exactly 90 degrees, otherwise the normal operation will be affected.
5.1.6 Check the Fan Wheel
After the installation, ensure that there is no contact or friction between the fan wheel and the surrounding components in
order to prevent malfunction during operation..
Fig.7
0-90°
0-90°
0-90°
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Fig.10
5.3.3 Fuel Line 5.3.4 Installation of Fuel Filter
A fuel filter should be installed in front of the fuel pump’s
fuel inlet. Ensure that this correctly follows the fuel flow,
positioned at an angle of exactly 90°, in conformity with
Fig.10, The fuel filter should be replaced every 6 months,
as should be the fuel pipe fittings and clamps.
A sharp knife must be used to cut fuel hoses and pipes
to length. Their Interfaces must not be crushed and
must be free of burrs.
The fuel pipe from the fuel pump to the heater should be
routed to rise continuously.
Fuel pipes must be fastened safely to avoid damage and/or
noise production due to vibrations (with a recommended
clearance of approx. 50 cm).
Never route or fasten the fuel pipes to the heater or vehicle
exhaust system. At crossings, always ensure adequate heat
clearance.
Dripping or evaporating fuel must not collect on hot compo-
nents or be liable to ignition by electrical systems.
When connecting fuel pipes with a fuel hose, always mount the
fuel pipes in a butt joint to prevent the formation of any
bubbles.
Hose clips must be used to secure all fuel supply hose
connections.
Components carrying fuel must be protected from heat.
Fuel pipes must be protected from mechanical damage.
90°
Pressure Height of Fuel Pump
1.Fuel Pump
2.Max. Fuel Level
3.Min. Fuel Level
4.Connection to Heater
Please install in accordance with the arrow on the fuel pump. Do
NOT install upside down.
-Preferred installation position in range 30° to 45°
Fig.9
5.3 Installation of Fuel Supply System
5.3.1 Fuel Pump
The fuel pump shall be mounted in a protective rubber
clamp to reduce vibration , with its outlet tilting upwards.
For the preferred installation position (as shown in Fig. 9).
When conditions permit , the fuel pipe between the fuel
pump and the heater should run at a gradual upward
slope.
max45°
min30°
2
4
1
3
0°
a
c
b
5.3.2 Pressure Height of Fuel Pump
The difference in elevation between the level of the fuel
itself and the fuel pump, as well as that between the fuel
pump and the fuel inlet, can create pressure (or suction)
in the fuel pipeline (as shown in Fig. 9). Therefore, these
dimensions shall conform to the following requirements:
a <= 3m; b <= 0.5m; c <= 2m.
1. This is ONLY applicable for the split heater model (MXR-1F).
2. During installation, please check the vent hole on the fuel
tank cap.
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Fig.11
5.4 Wiring Harness Installation
5.4.1 Main Harness
The connection diagram for the main wire harness and
heater as Fig. 11. The wires of the main device that
require connection to external circuits have been
gathered into wire bundles, which can be laid to suit the
positions of the various components, and fixed in
appropriate locations. The distance between two fixing
points shall not exceed 300 mm.
5.4.2 Battery Connection
Connect the red lead on the fuse box to the positive
pole of the vehicle battery and the black lead to the
negative pole.
5.4.3 Fuel Pump Connection
Connect the fuel pump lead to the fuel pump.
5.4.5 Avoid Short-circuit
The end of each wire shall be wrapped with insulating
tape to prevent short circuits.
The end of each wire shall be wrapped with electrical
insulating tape to prevent short circuit.
5.4.4 LCD Control Panel
Install the control panel in a position allowing
convenient operation, arranging it to make observa-
tion of the indicator easy, thus permitting convenient
identification of the heater’s operating status (e.g.
operating/stopped). The terminals of the control
panel lead wires shall be inserted into the socket,
then connected to the main harness connector using
its self-locking mechanism.
Any wire bundle exposed outside the vehicle body or outside
a wiring duct must be protected with corrugated piping.
Main harness connector
Main harness socket
5.5 Installation of Combustion Air System
5.5.1 Installation of Pipes
The air inlet is an aluminum pipe bellows, the exhaust is
a stainless steel pipe bellows. These must be installed
correctly, and in particular CANNOT BE INTERCHANGED
during installation (e.g. the aluminum pipe bellows is
only suitable for use as the inlet, and cannot tolerate
hot exhaust gasses.) Please use the clamps provided
to mount them tightly.
5.5.2 Direction of Pipes
Both the air inlet pipe and exhaust pipe shall exit the
heater in an outwards and downwards direction. If
either of these pipes must be bent, the sum of the
angles of all its curves shall not exceed 270°. Please
refer to Fig. 12.
The pipes openings shall not face towards the direction
of the running vehicle, or be positioned in way that
allows blockage by slurry, snow or dirt.
- Air for combustion must be fresh air drawn in from outside the vehicle; fumes from combustion must be expelled outside the vehicle
through the exhaust pipe.
- The combustion air intake must remain clear of any obstruction at all times.
- The combustion air intake must be installed in a way so that exhaust fumes cannot be drawn in and mixed with the combustion air.
- The combustion air intake system should be installed with a slight downward slope.
- If pipes pass through the vehicle’s outer walls or underside, precautions should be taken to prevent water splash from entering these pipes.
a)
b) a)
b)
Fig.12
Direction of the running vehicle
Direction of the wind
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Fig.13
5.5.3 High Temperature
When the heater is running, the surface of the exhaust pipe will reach a high temperature. Ensure that this pipe is
installed far away from plastic components or other objects with the poor thermal resistance on the vehicle body. The
exhaust pipe shall be properly mounted, with its vent pointed downwards and perpendicular to the road, at an angle
of 90°±10° (as shown in Fig. 13). To maintain the correct angle, the exhaust pipe fixing clamp shall be mounted within
150 mm of the pipe end.
10°
10°
All types of combustion produce high temperatures
and toxic exhaust fumes; this is the reason the exhaust
system must be installed strictly according to these
instructions.
Do not perform any work on the exhaust system while the
heater is working.
Before working on the exhaust system, first switch the heater off,
wait until all parts have cooled down completely, and wear
safety gloves if necessary.
Do not inhale the exhaust fumes.
The manufacture disclaims any liability for consequences
resulting from failure to install the device in accordance with the
requirements of this manual.
Risk of injuries and burns!
WARNING 5.6 Inspection Before Use
The heater should be debugged before use. during
commissioning, carefully check all connections for
leakage and safety, if heavy smoke emission is
observed or irregular combustion noise or fuel smell is
felt, the heater must be turned off. please remove the
fuse so that the heater will not work, the heater must
be maintained by qualified professionals before it can
be put into use. the details are as follows:
1. Check the air inlet and outlet for contamination and
foreign matter.
2. Clean the outside of the heater.
3. Check the electrical contacts for corrosion or loose
connections.
4. Check the intake pipe and exhaust pipe for blockage
and damage.
5. Check the fuel line for leakage.
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CONTROL PANEL
USAGE
06
6.1 LCD Control Panel Diagram
Fig.14
1. UP Key
2. ON/OFF Key
3. DOWN Key
4. Setting Key
5. OK Key
6. Work Status Symbol
7. Ambient Temperature
8. Timer Symbol
9. Plateau Symbol
10. Fault Symbol
11. Data Parameters
12. Host Schematic
PARKING AIR HEATER
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Fig.15 Fig.16 Fig.17
℃
V
℃ ℃
℃
6.2.5 Manual Pump Operation(Pump_oil)
In the shut-down state, press and hold the " " and " "
keys at the same time for more than two seconds, and
the fuel pump will start pumping oil. Release the button
to stop pumping oil.
6.2 LCD Control Panel Usage
In the shutdown state, press and hold the " "
key for 2 seconds to start the heater. The boot
status will be displayed as Fig. 15.
6.2.1 Start-Up-Operation
6.2.2 Shut-Down-Operation
Manual mode has six levels (H1-H6), "H1" is the
minimum power level (lowest fuel consumption), H6 is
the maximum power level (highest fuel consumption).
Press the " " or " " key to adjust the power level,
which will be displayed on a bar graph.See Fig.16.
6.2.3 Manual Mode Operation
The temperature mode (auto mode) will show the
Celsius symbol, and press the " " or " " keys to
adjust the temperature, which can be set in the range
of 5°C - 30°C.See Fig.17.
6.2.4 Automatic Mode Operation
At this time, do not force the heater power off, because the
heater temperature is too high and cannot dissipate heat.
Directly cutting off the power may damage the parts. Only
when the fan is turned off can the power be cut off.
While in the on state, long press ” ” key for 2 seconds,
equipment entering blow-off cooling process,display" ".
turn off the equipment after cooling.
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11
12
9 10
87
6
4
5
1
2
3
OK
OFF
ON
℃
℃
V
h

Fig.18
6.2.7 Setting Time
At the same time, press the " " and " " keys for two
seconds to enter the time setting interface, as shown
in Fig.18. The instrument indicator light " " flashes
and the display shows the planned start time 10.1 hours
later. If it displays OFF, it means the shutdown time has
been set.
OK
6.2.8 Remote Control Operation
In the shut-down state, simultaneously press and hold
the " " and " " keys for 2 seconds to enter remote
control pairing mode as shown in Fig.19.
6.2.6 Plateau Mode Operation
At the same time, press " " + " " keys for two
seconds to enter the plateau mode. The symbol " "
indicates that the high-altitude mode is activated. In
the plateau mode, the fuel-air ratio is reduced to adapt
to the high-altitude hypoxia, and then press the " " +
"" keys at the same time for 2 seconds to exit the
plateau mode. Please use with caution!
OK
OK
6.3 Fault Code Table
As shown in Fig.20, the corresponding error symbol
flashes and the corresponding device element symbol
flashes, and the displayed data represents the fault
code. Please refer to the fault table for its meaning.
Power voltage failureE02
Glow plug failure
E03
Fault Code Cause of Failure Solutions
1. Normal range: 12V (9-16V);
2. Check if the battery or generator is normal, and check if the fuse is aging.
1. Check if the glow plug connector is loose or if the wire is short-circuited with the casing;
2. Check if the glow plug is damaged.
1. Check if the heating air duct is unobstructed;
2. Check if the fan is running normally;
3. Check if the temperature sensor is normal.
Oil pump failure E04
E05
1. Check whether the oil pump connection line and connector are damaged, loose, oxidized, short-circuit
ed, or broken.
Fan motor failure E06
1. Check if the impeller is stuck;
2. Check if the connector is loose;
3. The gap between the magnet on the wind wheel and the Hall sensor on the controller is too large;
4. Whether the circuit is short-circuited or broken; the motor leaks electricity.
High temperature alarm
(inlet>50℃; casing>230℃)
ON
h
Fig.19
℃
1) Set the time value by pressing the " " or " " button, with a
time range of 1-24 hours.
2) Press the " " key briefly to switch between setting numbers.
3) Press the " " key briefly to switch between the time values f
or timed startup and shutdown.
5) Press the " " key for two seconds to exit this interface
without saving the settings.
4) Press the " " key to save the settings and exit this interface.
OK
6) Start timer startup/shutdown function. Press and hold the " "
and " " keys simultaneously to start the timed function,start
ing timed startup when in the off state and timed shutdown
when in the on state. "ON" or "OFF" will flash, with "ON" indicating
timed startup and "OFF" indicating timed shutdown. Press the
" " button briefly to display the remaining time.
1) Press " " and " " key to adjust the third digit value for
remote control coding, the number from 1-5.
2) Once the desired remote control number is selected, press
any key on the remote control to pair it with the machine, and
exit the pairing mode.
3) Press the " " key briefly to exit the remote control code
pairing mode.
PARKING AIR HEATER
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PARKING AIR HEATER
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Fig.20

Flameout
E08
Fault Code Cause of Failure Solutions
1. Check if there is insufficient oil, low-temperature solidification of oil, blockage of oil passage, or oil pump stuck;
2. Check if the inlet and exhaust air ducts are unobstructed;
3. Check if the temperature sensor on the casing is in full contact with the casing, and whether the pressure
spring is strong.
Unsuccessful start up
E09
1. The casing temperature is too high, and the casing cannot be blown cold after 3 minutes of starting.
2. There is a lot of white smoke in the exhaust gas.
2.1 Check if the filter next to the ignition plug is clean, clean or replace if it is dirty;
2.2 Check if the oil pump has strong fuel injection;
2.3 Check if the ignition plug is aging.
3. There is a small amount of white smoke or no smoke in the exhaust gas.
3.1 Check if there is insufficient oil, frozen or blocked oil passage;
3.2 Check if the oil pump is stuck or damaged and unable to pump oil;
3.3 Check if the combustion intake and exhaust passages are unobstructed;
3.4 Check if the glow plug is damaged;
3.5 Check if the gap between the internal wind wheel is too large.
4. The ignition is normal but the ignition failure fault is still reported.
Check if the temperature sensor on the casing is in full contact with the casing, whether the pressure
spring is strong, and whether the sensor is normal.
1.Check if the temperature sensor connection line and connector are damaged or loose, and confire the
sensor is damaged or not.
Sensor fauilure
PARKING AIR HEATER
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PRECAUTIONS
&
MAINTENANCE
07
PARKING AIR HEATER
32
The heater must be checked carefully before use, ensuring
that there are no leaks and that all connections are in safe
conditions. If dense smoke, fuel smells or irregular noise
become apparent, the heater must be shut down and the
fuse removed. The heater must only be put back into use
after repair by a qualified professional.
8.1 Check Before Use

8.2 Inspect Before Each Cold Season
8.3 Use Regularly to Prevent Deterioration
Before the start each of cold (heating use) season, careful
inspection for maintenance purposes shall be performed
by qualified professionals, as follows :
8.4 Keep Pipes Clean and Clear
The heater’s air inlet port and air outlet vent must be
kept clean and unblocked to allow smooth air flow and
prevent overheating.
8.5 Refueling
After switching to low-temperature fuel, run the heater
for at least 15 minutes to allow the new fuel to fill the fuel
line and fuel pump.
1. Confirm that there is no contamination or foreign matter
in the air inlet or outlet.
2. Clean the exterior of the heater.
3. Confirm that there is no corrosion on the electric contacts,
and that they are connected tightly.
4. Confirm that there are no blockages in or/and damage to
the air inlet pipe and exhaust pipe.
5. Confirm that there are no leaks from the fuel line.
If the heater is not being used for long periods, run it for
at least 10 minutes once every four weeks in order to
prevent malfunction of its mechanical parts.
PARKING AIR HEATER
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8.6 Performing Welding on the Vehicle
If electric welding is performed on the vehicle, the
heater’s positive power supply wire must be detached
from the battery and connected to earth, in order to
protect the controller from damage.
During transportation and storage of the heater, the
ambient temperature should remain within −40 °C to
+80 °C, in order to prevent damage to electronic
components.
8.7 Transportation and Storage
Only authorized customer service stations are permitted
to install and repair the heater. Use of non-original parts
is prohibited for safety reasons.
8.8 Installation and Repair
The manufacturer shall not bear responsibility for any
damage to the heater due to its unauthorized
disassembly, or caused by installation or operation in
violation of the instructions in this manual.
8.9 Responsibility for Damage
PACKHEIZUNG
Modell : MXR-1F Modell : MXR-2YModell : MXR-1F
PACKHEIZUNG
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