webasto airtop35005000
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Transcript of webasto airtop35005000
Webasto Airtop 3500/5000 Motorhome Heating
04.06/P Gofton.ppt
Internal function System diagram
Installation
Webasto AirTop 3500: the technology
Output 3.5kW
• In accordance with all regulatory standards
• No limitations on use from any association in the camping sector
• Bespoke heating system for the camping sector
04.06/P Gofton.ppt
Airtop 3500 and 5000 Schematic
Compact, waterproof control unit with
‘intelligent’ regulation of all components
Waterproof plug connections
Ceramic glow-pin with integrated flame
detector
Greater safety due to analog temperature
limiter
5 kW heating power in extremely compact
construction
Air Top 5000:
Automatic boost level
at temperature below 5° C
Low, comfortable operating noise level, low
current consumption, infinitely variable heating
power
Ferro-Tec burner, simple structure,
long lifetime
External installation possible in protected areas, fresh air intake possible, optional continuously
adjustable ventilation possible via operator control
Air Top 5000:Optional external
control of the boost level
04.06/P Gofton.ppt
Airtop Heaters - Features
04.06/P Gofton.ppt
Modulating Burner
• Webasto heaters have a Variable Heat Output from the maximum heat output down to the minimum output resulting in comfortable economic heat levels in relation to ambient temperatures.
Step-less power modulation
This results in a stable internal temperature and the absence of disturbing sudden noise increase
-20-10
0102030
020406080100
TempSetHeat. Power
04.06/P Gofton.ppt
Temperature control logic is extremely precise.Stepless Control – Other manufacturers heaters use a stepped heat control. Switching
between these levels can lead to being either too warm or too cold, as the desired temperature is never controlled accurately. These sudden step changes also lead to distinct noise level changes, which can easily cause sleep pattern disturbances.
The electrical consumption is also kept at a precise control & not peaking and dropping due to the heater switching on & off as it attains temperature.
other heaters
Stepless Temperature Control
Temp Control
Stable Current ConsumptionUneven Current Consumption
demand on the leisure battery
04.06/P Gofton.ppt
Ceramic Glowpin
Webasto have used this ‘state of the art’ technology for a number of years.
As you can see from the diagram below, the ceramic glowpin is significantly smaller in size. The heating element is straight and smooth in design, unlike the bulky winding element of the glowplug, still used by other heater manufacturers today.
The main benefits of using the ceramic glowpin are:
¨ Reduced Battery Power Draw¨ Increased Reliability¨
In the Airtop 3500 and the Airtop 5000 models, the glowpin also incorporates a flame detector, thus reducing component parts and stocking levels.
04.06/P Gofton.ppt
Other Features & Benefits
Ferrotec Burner Fleece, which has replaced the old cloth matting fleece. This concept uses metal to assist in achieving longer life.
A Self Diagnostic Blink Code is built into the on/off switch, providing quicker fault diagnosis in the event of heater failure, therefore reducing vehicle down time. Our heaters do not lock out or require specialist diagnostic equipment.
Low Noise Output
Integral Control Unit, using less wiring, thus reducing the risk of loose or corroded connections.
Self Reset Overheat Switch
04.06/P Gofton.ppt
Actual Performance Test Comparison
Diesel vs Gas
04.06/P Gofton.ppt
laboratory field
Webasto AirTop 3500: the tests
1 installation and start-up
2 function and ratings
3 temperature measurements
4 measurement of heating air flow rate
Livigno (1859 m a.s.l.)
comparison tests with models with garage and alcove
[carried out on models with garage]
04.06/P Gofton.ppt
Webasto AirTop 3500: the tests
laboratory test results
field test results
2
[temperature]
Garage
Toilet
Dinette
Area
5°C19°CTemperature at the end of test
23°C36°CMaximal temperature obtained
20°C obtained
22°C obtained
20°C obtained
Description
8.00 a.m.
8.00 a.m.
0.30 a.m.
3.00 a.m.
1.30 a.m.
8.00 a.m.
8.00 a.m.
2.30 a.m.
5.15 a.m.
3.00 a.m.
gas heater
Test start
22.30 p.m.
-5
0
5
10
15
20
25
0 1 2 3 4 5 6
time [h]
Tem
pera
ture
diff
eren
ces
com
pare
d to
out
side
Dinette [W]Bagno [W]Garage [W]DinetteBagnoGarage
1Toilet
Toilet [W]
04.06/P Gofton.ppt
Air Distribution – Similar Layouts
A
BC
D
EF
A
BC
D
E
FG
Gas Heater
Test
04.06/P Gofton.ppt
Webasto AirTop 3500: the tests[air flow rate, m/s]
1,60
2,90
4,90 3,50
0,93
Gas heater
0,5
0,2
0,5
6,60,1
0,2
2,77
1,38
04.06/P Gofton.ppt
46°C
67,6°C
78°C75°C
74°C
42°C36°C
Temperature Comparison
Test
59°C
31,5°C
04.06/P Gofton.ppt
~2.5 hoursGoal of +20°C in dinette
31,4°CDifference at the end of the test from inside to outside
2,5 °CDifference between the internal and external temperature at the begining of the test
3 hrs (21.30÷00.40)Time of testing
Results
04.06/P Gofton.ppt
Comparison between Webasto & Gas Heating
OLess weight
OLower electrical consumption
OConstant distribution
OLess internal space occupied
OBetter airflow
OHigher air off temp
OImmediate 20° warm up
OAbility to reach 20° internal temp
Gas Heater
Summary Air Heating