MV Heating MV Airo 2 Instruction Manual

1 MV Heating UK Ltd MV Airo 2 MV Airo 2 Air Heater Instruction Manual Ed. 3.01 MV Heating UK Ltd Unit 6 Second Avenue Business Park Millbrook Southampton SO15 0LP ...

2 MV Heating UK Ltd Preface Thank you for purchasing the MV Airo 2 Air heater. This instruction book describes the structures, working principles, installation and operation of the MV Airo 2. 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, ple ...

3 MV Heating UK Ltd Contents Introduction ....................................................................................................... 5 Technical Data .................................................................................................... 6 MV Airo 2 Internal Structure ...................................................................... 7 Structures and Working Principles ............................................................. 8 Case Assembly ............................................................................................ 9 Installation .................................................... ...

4 MV Heating UK Ltd Pre-setting Starting and Heating Times ................................................... 30 Checking Temperature ............................................................................. 31 Converting to Thermostatic Mode ........................................................... 31 Fault Information ..................................................................................... 31 Remote Operation ................................................................................... 32 Installation Fuel Priming Feature ............................................................. 32 LCD Digital 7-Day T ...

5 MV Heating UK Ltd Introduction The main equipment of the MV Airo 2 air heater (hereinafter referred to as ‘the heater’) is 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 and blown out when it becomes hot. The heat can be supplied by the heater to the driver’s cab and passenger’s compartment independently from the engine. The schematic diagram is shown in Fig I. The heater is fully automatically controlled. It features a compact structure, ...

6 MV Heating UK Ltd 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 (Amps) PO1 0.9 PO2 1.1 PO3 1.2 PO4 1.3 PO5 1.5 PO6 1.7 PO7 1.9 ...

7 MV Heating UK Ltd MV Airo 2 Internal Structure Figure II 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 ...

8 MV Heating UK Ltd The heat exchanger is made of die-cast aluminium, with radiating fins around the rear. The combustion chamber fits inside the inner cavity of the heat exchanger. The burner assembly and glow pin, fit into the end of the combustion chamber. Fuel comes to the burner assembly through the fuel pipe and is ignited by the glow pin. The flame is passed up the combustion chamber and returns between the inner walls of the heat exchanger and discharged through the exhaust outlet vent to the outside of the vehicle or boat. The air supporting combustion of the furnace, comes from the combustion air inlet port and is sent do ...

9 MV Heating UK Ltd Case Assembly Figure IV 12. Junction box cover 13. Top Case 14. Hot air outlet 15. Inlet Cover 16. Outlet Cover 17. Grill ...

10 MV Heating UK Ltd Installation The kit includes everything necessary for installation. ...

11 MV Heating UK Ltd Figure V 18. Control Switch/Timer 19. Main Wire Harness 20. Fuel Pump 21. Mounting Gasket 22. Combustion Air Inlet Pipe 23. Exhaust Pipe 24. Fuel Pump Extension Loom 25. Fuel Standpipe 26. Fuel Pipe 27. Fuel Pump Bracket 28. Fuel Filter 29. Exhaust Pipe Clip 30. Exhaust Pipe Fixing Clip 31. Air Inlet Fixing Strap 32. Fuel Connector Hose Clip 33. Fuel Line Connector 34. Air Inlet Hose Clip 35. Control Fixing Screw 36. Anti-Vibration Mount (M6) Figure V shows the diagram for installation. The position and ways of fixing of various parts may vary from one vehicle/boat to another, but the general princ ...

12 MV Heating UK Ltd Installation of the Main Heater Body For the ease of servicing, fault finding and air flow it’s recommended that the main body is placed in an area with easy access. Figure VI shows the minimum distances required. Figure VI A. Air heating inlet B. Air heating outlet C. Combustion air inlet D. Fuel inlet E. Exhaust outlet F. Non-interference area G. Information label H. Installation surface I. Gasket Choose a flat installation surface, any undulations could cause the case to twist and will not ensure an even mount. Make sure there are no foreign bodies between the bottom of the heater and the installation surfa ...

13 MV Heating UK Ltd A. Mounting Gasket B. Mounting Plate Figure VII Figure VIII If the heater is being reinstalled, a new gasket should be used. Figure IX 148 7.5 170 85 125 2 5 25 35.5 7.5 26 12 44 18 55 DIMENSIONS: MM A B 0 - 90° 0 - 90° ...

14 MV Heating UK Ltd The direction of the heater for installation is shown in figure IX. Ensure you do not exceed the inclination angle or normal operation will be affected. After installation, make sure there is no friction between the fan and other nearby parts to ensure smooth operation and make sure the heater label is clearly visible for ease of maintenance in the future. Air Inlet & Outlet Make sure that the hot air outlet does not exit onto any parts affected by heat and that it isn’t directed toward the flow of anything that can cause a blockage, near splashing water or near the vehicles exhaust. Correct Wrong Figure X Avo ...

15 MV Heating UK Ltd Additional Ducting (Optional) Quantity of ducting can be purchased according to needs. A. Grill or ducting B. Heater Body C. 60mm Hose Clip D. 60mm APK Ducting E. 80-60mm Reducer F. 80mm Directional Vent Figure XI A. Heater Outlet B. 60mm Hose Clip C. 60mm APK Ducting D. 60mm ‘Y’ Branch E. 80- 60mm Reducer F. 80mm Directional Vent G. 80mm Open/Close Vent Figure XII A B C D E F F A B C D E G F ...

16 MV Heating UK Ltd Installation of Combustion Air Pipe and Exhaust The combustion air inlet pipe sucks in fresh air from outside of the vehicle and the exhaust discharges fumes outside of the vehicle. Measures must be taken to avoid the fumes from re-entering the vehicle. The pipes should exit at the bottom of the vehicle, ensuring that the openings are far enough away from any splashing water or dirt that can clog them. Figure XIII shows the right and wrong way to install the pipework. A. Correct B. Wrong Figure XIII Only use the inlet pipe and exhaust provided with the kit for installation. The exhaust pipe is made of corrugated ...

17 MV Heating UK Ltd combustion air pipe and exhaust pipe should be kept in good condition. Do not damage or remove them. Both the combustion air pipe and exhaust pipe should come downward from the heater and face opposite to the vehicle’s direction of travel. If the pipe cannot avoid a curve, make sure the radius is no smaller than 50mm and the sum of all curves does not exceed 270˚. Figure XIII shows the right and wrong way to install the combustion air intake. Note that it is the same for the exhaust too. A & B – Correct C & D - Wrong Figure XIV When the heater is operating, the exhaust will get hot, so make sure it is insta ...

18 MV Heating UK Ltd Fuel Lines Figure XVI 1. Fuel Tank 2. Fuel Standpipe 3. Fuel line Hose Clamp 4. Fuel Line 5. Rubber Fuel connector 6. Fuel Filter 7. Fuel Pump 8. To Heater Always fit the fuel pump on the anti-vibration mount securely onto the vehicle. Ensure the outlet of the fuel pump tilts upward. The correct angle is shown in Figure XVII. Where possible the fuel line is ideally placed uphill to the fuel pump to ensure ideal bleeding of the fuel line. 2 3 4 5 6 7 8 1 2000-6800mm 500-1200mm ...

19 MV Heating UK Ltd A B C 1 2 3 90° 0° 15° 35° E F D 4 1. Heater Body 2. Max. Fuel Level 3. Min. Fuel Level 4. Fuel Pump Fuel Pump Angle & Suction Height A. 3000mm B. 500mm C. 2000m D. Not acceptable E. Acceptable (between 15-90°) F. Not acceptable Figure XVII Figure XVII shows the ideal way to mount the fuel pump The fuel pump’s outlet should tilt upward at an angle between 15˚-35˚ (as shown above). ...

20 MV Heating UK Ltd Only use the fuel line provided, ensure the pipe is placed away from any possible debris and avoid any sagging in the line. Make sure the fuel line does not flow downward toward the fuel pump. This will prevent correct fuel flow and produce air bubbles in the line. The fuel filter, fuel pipe and clamps should all be replaced after 2 years of us 1 2 Correct Wrong 1. Flush – No Air Bubble 2. Gap – Air Bubble Formed Figure XVIII Figure XVIII shows the correct way to connect fuel lines to prevent the build- up of air bubbles. Ensuring they are flush and minimising bends. When the fuel is being sucked from th ...