Legends To The Wiring Diagrams - Webasto Air Top Evo 40 Installation Instructions Manual

13.2 Legends to the wiring diagrams

Legend to wiring diagrams
Item Description
A1 Heater
A2 Control unit
A3 UniBox
B2 Room temperature sensor
B3 Blow out temperature sensor
B4 Room temperature sensor
B5 Exhaust gas temperature sensor
E Glow plug
F1 Fuse 24 V, 15 A / 12 V, 20 A
F2 Fuse 4 A
F3 Fuse 1 A
F4 Fuse 4 A
F5 Fuse
H1 LED green (in Item S1)
H2 LED red (in Item P)
Heating symbol on display (in
H3
Item P)
H4 Bulb/LED (in Item P and S)
H5 Bulb/LED
H6 LED (green, blue, white, red)
H7 Symbol on display
K Relay with free-wheeling diode
M1 Motor
M3 Motor
P Combi timer
P1 SmartControl
P2 SmartControl / Multi Control
Air Top Evo Multi Control
S
(MC04)
S1 Rotary selector control element
S2 Switch
S3 Switch
S4 Pushbutton
S5 Switch
S6 Switch, 1 or 2-pin
S7 Battery disconnector
V1 / V2 Blocking diode
X1 – X6 Plug connection
X7 Plug connection
X8 Plug connection
X9 Plug connection
X9 (a) Plug connection
X9 (b) Plug connection
X9 (c) Plug connection
X1 – X11 Plug connections
X13 Plug connection
X14 Plug connection
X15 Plug connection
X16 Plug connection
X17 Plug connection
Y1 Fuel pump
Y2 Solenoid valve / pump
Air Top Evo 40 | Air Top Evo 55
Remarks
Air Top Evo 40 / 55
Control unit 1580
–
Inside
Overheating protection
Outside
Overheating protection / flame monitor
–
Blade type fuse SAE J 1284
Not included in wiring harness
Blade type fuse SAE J 1284
Not included in wiring harness
Value [in A] to be selected correspon-
ding to wire cross section
Operating indicator
Lighting:Quick Heating button, Ready
indicator, ON indicator
Operating indicator
Display and button lighting
ON indicator, pumping device (max.
500 mA)
Operation indicator, Ready indicator,
ON indicator, operation indicator
–
Vehicle blower (max. 500 mA)
Combustion air and heating air blower
Vehicle blower
Timer and temperature selector
–
–
ON/OFF button, selector switch for ad-
ditional functions and temperature se-
lector
ON switch and temperature selector
Ventilation
CO2 setting
External Quick Heating button
auxiliary drive / pumping device
Disconnector
Electronically controlled disconnector
(max. 500 mA)
Min. 500 mA
To Item A2
To control unit
To Item A2
–
To Item S or S1
To Item S or S2
W-bus, optional Telestart (12 V) or
Thermo Call connection
In heater on control unit
To Item Y1
–
To Item S3
Wiring harness connection DP42
Wiring harness connection DP42
DP42
auxiliary drive / pumping device
(max. 500 mA)
Legend to remarks in wiring diagrams
Item Remarks
Positive from terminal 15/75 to connection 10: Continuous heating mode is
1 possible in connection with quick heating function provided the ignition is
switched on.
All heater versions: W-bus diagnosis connection
Heater versions with control elements Multi Control (MC04) and Combi timer:
2 Thermo Call 12 V/24 V connection and Telestart (only 12 V) connection.
Installation as system: Connection to slave heater (yellow/blue wire). Slave wi-
ring harness is included in the Slave scope of delivery.
3 CO2 setting (see workshop manual)
Connection to terminal 30: Continuous heating mode is possible with ignition
4
switched off.
Grey and violet wires required for ADR function.
5
Non-ADR vehicles: Insulate and tie back ends of wires.
External temperature sensor (optional)
6
Installation as system: External temperature sensor must be connected to mas-
ter heater.
7 Fuse in vehicle.
Pin 7 "Boost"
8
Only ambulance heater version (door contact connected to terminal 31).
9 The connection is required for use of the Combi timer 1531 in ADR vehicles.
10 Wiring harness adapter (optional)
11 Switching capacity 250 mA
Cable cross-sections
Graphic
Wires or components shown with dashed lines are
optional and not included in the scope of delivery or
in the wiring harness.
Cable colours
Abbreviation
bu
bn
ye
gn
gy
og
rd
bk
vt
wh
<7.5 m 7.5 – 15 m
2 2
0.75 mm 1.0 mm
2 2
1.0 mm 1.5 mm
2 2
1.5 mm 2.5 mm
2 2
2.5 mm 4.0 mm
2 2
4.0 mm 6.0 mm
Colour
blue
brown
yellow
green
grey
orange
red
black
violet
white
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