Thermo Top Evo 7 Circuit diagrams
701
7 Circuit diagrams
Fig. 701 shows the circuit of the Thermo Top Evo heater, parking heater and heater control.
Legend for wiring diagram.
Cable colours
bl
br
ge
gn
gr
or
rt
sw
vi
ws
blue
brown
yellow
green
grey
orange
red
black
violet
white
Item Description Comment
1
present in vehicle Vehicle fan
2
Fan controller
3
Air-conditioning control unit
4
Aerial
5
Plug connection View of Line Side
6
Indicator for vehicle engine
running (in-line operation of
solenoid coolant valve)
Optional
Must be activated with a
data record
7
Low active auxiliary heating
request
Optional
Must be activated with a
data record
Gnd/0 V = ON
open or no signal or
U > 6 V = OFF
ϑ
Outside temperature
X1 6-pin connector Vehicle signal
X2 2-pin connector Power supply
X3 4-pin connector Temperature sensors
X4 2-pin connector Circulating pump
X5 2-pin connector Glow plug
X6 2-pin connector not in use
X7 2-pin connector Metering pump
X8 2-pin connector Diagnosis plug
X9 2-pin connector Diagnosis bridge
X10 4-pin connector Heater controls
X11 4-pin connector Heater controls
X12 4-pin connector Temperature sensor for W
bus
X13 4-pin connector Temperature sensor for W
bus
X14 6-pin connector Telestart T91/T100 HTM
X15 2-pin connector Solenoid coolant valve
Changeover to in-line op-
eration of solenoid coolant
valve only in conjunction
with 12 V signal on Pin 1
X16 2-pin connector Circulating pump
X17 4-pin connector Telestart button
X18 4-pin connector Telestart button
A1 Heater Thermo Top Evo
A2 Control unit
A3 Digital timer 1533
A4 Telestart T91
A5 Telestart T100 HTM
A6 Fuse holder
A7 W bus temperature sensor
A8 IPCU Fan controller
A9 Relay socket with fuses
A10 Telestart button
F1 Fuse 20 A
F2 Fuse 30 A
F3 Fuse 1 A
F4 Fuse 25 A
B1 Temperature sensor Coolant temperature sen-
sor
B2 Temperature sensor Overheating
M1 Motor Combustion air fan
M2 Motor Circulating pump
M3 Vehicle fan
S1 Vehicle fan switch
S2 Vehicle fan switch
S3 Switch ON/OFF Optional
S4 Switch for auxiliary heating
request
EGlow plug
Y1 Metering pump DP 42
Y2 Solenoid coolant valve
K1 Relay Fan relay
Item Description Comment
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