Webasto DBW 2016 Installation Instructions

Electrical connections DBW 2010 / 2016
44
Item Designation Comment A B C D
A1 Heater 
A2 Control unit SG 1553 
4 Ignition spark
generator

5 Thermostat Control thermostat
(internal)

7 Thermostat Fan thermostat 
8 Thermostat Temperature limiter
thermostat

10 Ignition electrodes 
61.3 Interference
suppression set (2x)
Radio interference
suppression

A Plug connection Control unit, 2-pin 
B Plug connection Control unit, 6-pin 
B5 Thermostat Nozzle block preheating 
C Plug connection Control unit, 8-pin 
F1 Temperature fuse Any polarity 
F2 Fuse 8 A Blade-type fuse DIN 72581 
F3 Fuse 8 A Blade-type fuse DIN 72581 
F4 Fuse Blade-type fuse DIN 72581 
F5 Fuse Blade-type fuse DIN 72581 
F6 Fuse Blade-type fuse DIN 72581 
H1 Light, green Indicator 
H2 Light,
circulating pump
if controlled via S4 
K1 Relay Circulating pump; negative
for heater
K2 Relay Heater motor
K3 Relay Light, control thermostat
operation
K4 Relay Ignition spark generator
K5 Relay Solenoid valve, flame
monitor
K6 Relay Nozzle block preheating 
K7 Relay Vehicle heating fan 
M1 Motor Circulating pump 
M2 Motor Combustion air fan 
M3 Motor Vehicle fan 
R Flame monitor Photoresistor, any polarity 
R1 Motor resistor Power resistor 
R2 Resistor,
heating cartridge
Nozzle block preheating 
S1 Switch Heater on/off 
S3 Switch on water tap Contact open when water
tap closed

S4 Switch for on/off,
circulating pump separate

S6 Switch Vehicle fan 
X1 Plug connector, 2-pin 
X2 Plug connector, 1-pin 
X3 Plug connector, 2-pin 
X5 Plug connector, 4-pin 
Y1 Solenoid valve Any polarity 
A Fitted in heater
B Parts supplied loose
C Only if required
D In vehicle
 Set assignment
 Possible depending on scope of supply or version
Item Designation Comment A B C D
1303560C_DBW 2010 EA_degbfr.book Page 44 Tuesday, March 5, 2013 9:05 AM

Webasto DBW 2016 Specifications

General

Brand	Webasto
Model	DBW 2016
Category	Water Heater
Language	English