MV Heating Airo 2 Alpine Auto User manual

MV Airo 2 & 5
Alpine Auto
AIR HEATER
INSTRUCTION MANUAL
ED 3.00
MV Heating UK Ltd
Unit 6
Second Avenue Business Park
Millbrook
Southampton
SO15 0LP
MV Heating UK LTD
[phone]
2 & 5kW Air Heaters

[phone]
1
MV Heating UK Ltd
Preface
Thank you for purchasing the MV Airo 2 and/or Airo 5 diesel powered hot air
heater (petrol versions of the MV Airo 2 are available at special request). This
instruction book describes the structures, working principles, installation, and
operation of the MV Airo 2/5. For correct use of the heater, please read this
instruction book carefully before installation and use. The instruction book
should be saved in a convenient place for reference later.
Note
•This instruction book is subject to revision without notice, but the
instruction book is in conformity to the purchased product.
•Our effort is to explain all questions you may have. If you have any
doubts or find anything incorrect in this manual, please contact us
directly.
•Check the heater for any damage when unpacking and contact the
dealer immediately if anything is found.
•If any troubles arise during application, please contact MV Heating or
other customer service stations authorized by this company. We shall
do our best to provide service to you.
Comply with the operation manual for installation and operation, to
ensure prolonged and reliable use.

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2
MV Heating UK Ltd
Contents
Introduction .......................................................................................................4
MV Airo 2 Technical Data...................................................................................5
MV Airo 5 Technical Data...................................................................................6
Structure ........................................................................................................6
MV Airo 2 Internal Structure......................................................................7
MV Airo 5 Internal Structure......................................................................8
Heater Cases ..............................................................................................9
Installation .......................................................................................................10
Installation of the Main Heater Body...........................................................12
MV Airo 2 Dimensions..............................................................................12
MV Airo 5 Dimensions..............................................................................13
Mounting Gasket and Plate Dimensions..................................................14
Angle of Installation.................................................................................15
Air Inlet & Outlet......................................................................................16
Additional Ducting ...................................................................................17
Installation of Combustion Air Pipe and Exhaust.....................................18
Installation of Fuel Lines ..............................................................................20
Fuel Standpipe .........................................................................................23
MV Airo 2 Wiring Diagram...........................................................................25
MV Airo 5 Wiring Diagram –Brushless Version...........................................27
Timer and Rheostat Control Plugs ...........................................................29
Wiring Loom Plug for Timer and Rotary Control .....................................30

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3
MV Heating UK Ltd
External Remote Temperature Sensor Probe...................30
ECU Connections –Airo 2 ........................................................................31
ECU Connections –Airo 5 ........................................................................32
Operation.........................................................................................................33
Rheostat Control..........................................................................................33
On/Off ......................................................................................................34
Thermostatic Mode..................................................................................34
Fan Mode .................................................................................................34
Maintenance....................................................................................................35
Fault Codes.......................................................................................................36
Rheostat Control..........................................................................................36
Timers...........................................................................................................37

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4
MV Heating UK Ltd
Introduction
The main parts of both the MV Airo 2 and Airo 5 air heaters (hereinafter
referred to as ‘the heater’) are a small fuel furnace controlled by a single-chip
micro-processor. Its furnace body (the heat exchanger) is located in the hood
shaped case, which serves as an independent air passage. Cold air is drawn
into the air passage by the fan, heated by the heat exchanger and blown out
as hot air.
An example of how the heater operates is shown in Figure I. Hot air is
supplied by the heater to the driver’s cab and/or passenger’s compartment
independently from the engine. The same theory applies to campervans,
cranes, marine vessels etc.
The heater is fully automatically controlled. It features a compact structure,
easy installation, low running costs, easy maintenance and is safe and
reliable.
1. Control switch
2. Heater Body
3. Fuel Pump
4. Wiring Harness
5. Vehicle’s Battery
6. Vehicle’s Fuel Tank
7. Exhaust Pipe
8. Combustion Air
Intake
Figure I
1
25
6
3 4
8
7

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5
MV Heating UK Ltd
MV Airo 2 Technical Data
Output (w)
2000
Fuel
Petrol
Diesel
Voltage
12/24V
12/24V
Fuel Consumption (l/h)
0.14 - 0.27
0.12 - 0.24
Power Consumption
14 - 29
Working Temperature
-40°C - 20°C
Weight (KG)
2.6
Dimensions (mm)
323x120x121
Variable Output
Current Draw
Position
12V (Amps)
PO1
0.9
PO2
1.1
PO3
1.2
PO4
1.3
PO5
1.5
PO6
1.7
PO7
1.9

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6
MV Heating UK Ltd
MV Airo 5 Technical Data
MV Airo 5
Heat Power
5kW
Fuel
Diesel
Rated Voltage
12V24V
Fuel Consumption
0.19 - 0.60l/h
Rated Power Consumption
15 - 90W
Working Temperature
-40°C ― 20°C
Weight of Main Heater
5.9Kg
Dimensions
425X148X162mm
Mobile Phone Control (Optional)
No limitation
Remote Control (Optional)
Without obstacles ≤800m
Structure
The structure of the main body is shown in Figure II.
1. Air Fan
2. E.C.U.
3. Air Motor
4. Bottom Case
5. Insulating Bush
6. Heat Exchanger
Figure II
126 5
34

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MV Heating UK Ltd
MV Airo 2 Internal Structure
Figure III
1. Heat exchanger 2. Gasket 1 (4 hole)
3. Combustion chamber 4. Burner Assembly
5. Gasket 2 (5 hole) 6. Air Motor Assembly
7. Insulating bush 8. ECU
9. Air Fan Wheel 10. Glow Pin
11. Overheat Sensor
9
8
6
5
4
3
2
1
7
10
11

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8
MV Heating UK Ltd
MV Airo 5 Internal Structure
Figure IV
1. Heat Exchanger 2. O-ring
3. Combustion Chamber 4. Burner Assembly
5. Gasket 6. Air Motor Assembly
7. ECU 8. Glow Pin
9. Overheat Sensor 10. Insulating Bushes
7
83
4
5
69
1
2
10

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9
MV Heating UK Ltd
The heat exchanger is made of die cast aluminium with
radiating fins around and at the rear end. The combustion tube is located
inside the heat exchanger, and the burner assembly is fixed on the front end
of the combustion tube. Fuel is fed to the burner assembly through the fuel
inlet pipe by the aid of the fuel pump. It is ignited by the glow pin, which also
serves as a flame sensor after ignition. The flame is supported in the burner
assembly and sealed in the combustion tube. All combustion gases exit the
heater through the exhaust port.
Combustion air is fed into the heater via the combustion air pipe and is
supported efficiently by the combustion air fan, located on the rear of the air
motor. Cool air enters the air inlet, is heated by the heat exchanger, and is
pushed out the air outlet by the fresh air fan of the air motor assembly.
Heater Cases
Figure V
1. Inlet cap 2. Outlet Cap 3. ECU Cover
4. Top Case 5. Bottom Case 6. Grill
3
1
6
4
2
5