VELIT 4000P Bedienungsanleitung
4Kw/14000BTU Gasoline/Diesel
Air Heater User Manual
VER 1.0
4Kw Air Fuel Heaters
Thank you for purchasing this VELIT 4000P Gasoline/Diesel air heater.
For safety and best performance, please read and follow the instructions
carefully. The electronic version of this document is available under the
product page at velitcamping.com.
WARNING Improper installation or repair of Velit 4000P air heater can
cause fire or leakage of deadly carbon monoxide leading to serious
injury or death. To install and repair Velit heating and cooling systems,
you need to strictly follow this user manual and use only genuine Velit
parts. ALWAYS carefully follow Velit installation and repair instructions
and heed all WARNINGS. Velit rejects any liability for problems and
damage caused by improper installation or service.
WARNING
1. The heater shall not be used in areas with flammable and
explosive gas and dust.
2. The heater is prohibited to be used in the garage and other
enclosed spaces to prevent suffocation or exhaust poisoning.
3. When installing heaters on special vehicles, relevant specific
rules shall be followed, and it is strictly prohibited to install heaters in
violation of industry rules.
4. Explosive and flammable materials such as gas tank, compress
air tank, clothing, wood, plastic, etc. are strictly prohibited near the hot
air outlet and the exhaust outlet.
4Kw Air Fuel Heaters
Table of Contents
I. Overview························································································· 1
II. Structure and Components···························································· 2
III. Installation···················································································· 4
IV. Operation···················································································· 14
V. Electrical Diagram········································································ 18
VI. Error Codes and Troubleshooting··············································· 19
VII. Care and Maintenance······························································· 20
4Kw Air Fuel Heaters
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I. Overview
1.1 Product introduction
Velit 4000P air heater is consisted of a drive unit (combustion air fan,
heating air fan and drive motor), heat exchanger, burner with
combustion chamber, control unit, glow plug and housing. The ignition
and fuel supply are automatically controlled by the control unit. After
starting up, fuel will be pumped into the combustion chamber and
ignited by the glow plug. Meanwhile the heating air fan pulls the indoor
cold air into the heat exchange channel. The air will be heated up by the
heat exchanger and then pushed into the cabin area.
1.2Technical Specifications
Heat output (Btu/h)
14000
Fuel
gasoline
diesel
Rated Voltage (V)
12
Operating voltage (V)
11-16
Fuel consumption (G/ h)
0.05~0.13
0.05~0.12
Rated power (W)
20~46
Working temperature
-30°F - 75°F
Rated elevation (ft)
≤17000
Weight (Lb)
10
Dimensions (inch)
14.6*5.5*5.9
1.3
2
3
4Kw Air Fuel Heaters
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II. Structure and Components
2.1 Heater components
1. Heater fan 2. Motor 3 Support frame 4. Fuel line rubber plug 5. Motor mount 6.
Control unit 7. Control unit mounting screw 8. Compressor wheel 9. Screw 10.
Screw 11. Burner 12. Fuel inlet 13. Fuel line gasket 14. Glow plug 15. Combustion
chamber flange seat 16. Combustion chamber 17. Screw 18. Motor sealing gasket
19. Screw 20. Combustion chamber sealing gasket 21. Heat exchanger 22. Heat
exchanger rubber ring 23. Glow plug cap 24. Temperature sensor.
4Kw Air Fuel Heaters
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2.2 Housing components
1.Inlet cap 2. Upper housing 3. Lower housing 4. Outlet cap
4Kw Air Fuel Heaters
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III. Installation
3.1 Accessory diagram
3.2 Installation
3.2.1.1 The heater can be installed inside or outside the vehicle. When
the heater is installed outside the vehicle, it must be ensured
that the installation location will not be exposed to rain and
debris on the road.
3.2.1.2 Appropriate spacing must be reserved at the installation
location of the heater, as shown in the following to ensure
proper air flow. The inlet and outlet must be free of obstruction.
4Kw Air Fuel Heaters
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3.2.2 The sealing between the heater and the mounting surface must
be intact.
During installation, the sealing gasket provided by the
manufacturer must be used, and the mounting surface must be
flat.
Four M6 nuts provided by the manufacturer shall be used for
securing the unit at 6-7Nm. Note: When the heater is
reinstalled, the gasket must be replaced.
4Kw Air Fuel Heaters
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3.2.3 If the thickness of the installed panel is less than 1.5mm, an
additional reinforcing plate must be installed.
3.2.4. After the installation of the heater, make sure there is no
obstruction at the air inlet and outlet.
3.2.5. When a hose is connected to the hot air outlet, the inner
diameter of the hose shall not be less than 60mm, and the
material must have a temperature rating higher than 130 °C.
3.2.6. The maximum pressure difference between the intake side and
the outlet side of the heater shall not be greater than 0.15 KPa.
3.2.7. The hot air outlet shall not be directed towards the non-heat-
resistant parts.
3.2.8. When the heater operates in external circulation mode, no
water and debris shall enter the cold air intake.
4Kw Air Fuel Heaters
7
3.2.9. When the heater operates in internal circulation mode, the hose
placement needs to prevent heated air from entering the air
intake again. The intake air should always come from the cooler
area.
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