Webasto MultiControl Installation Instructions

MultiControl | SmartControl | UniBox 15
9 Annex
9.1 Connections
Legend – Control element connections
Item Col-
ours
Name Remarks
Contact 1 yellow
W bus / low switch /
diagnosis
The connection is configured
differently, depending on
the choice of heater. Please
note that heaters with
analogue control do not
have a W bus available on
this lead. A W bus diagnosis
is only possible with con-
nected W bus heater or with
connected UniBox.
Contact 2 black Switching output SAU1
max. switching current
500 mA
Contact 3 red KL30 Plus+
Contact 4 brown KL31 Earth-
4
3
2
11
Fig. 18: Control element connections
Legend – UniBox connections
Item Col-
ours
Name Remarks
Contact 1 red KL30 Plus+ (control element)
Contact 2 brown KL31 Earth- (control element)
Contact 3 yellow W bus W Bus (control element)
Contact 4 grey Switching output SAU1
Switching output heating
(operating element)
Contact 5 red KL30 Plus+
Contact 6 brown KL31 Earth-
Contact 7
green /
white
W bus W bus
Contact 8 black Switching output SAU1
Switching output heating
(high side) from the UniBox
Contact 9
red /
white
Switching output SAU2
Switching output ventilation
(low side) from the UniBox
max. switching current
20 mA
Contact 10 TS (Plus)
External room temperature
sensor
Contact 11 TS (earth)
External room temperature
sensor
Contact 12 blue SWG (Plus) Setpoint input
Contact 13 white SWG (earth) Setpoint input
Contact 14
black /
grey
KL15 Ignition
Contact 15 violet ADR (TRS)
ADR mode
Display on control element
Contact 16 green SEI
Switching input
External button for switch-
ing ON/OFF
Contact 17
red /
black
ST / Status Error code / status
Item Col-
ours
Name Remarks
Contact 18
white /
red
Multifunction
Multifunction input (air
heater)
9
18
1
10
1
Fig. 19: UniBox connections

Webasto MultiControl Specifications

General

Brand	Webasto
Model	MultiControl
Category	Control Unit
Language	English