1 =Basic pcb UWA2-B
Basic pcb UWA2-B
2 =Multiple switch (option)
X15 =Bus/ModBus
3 =Humidity sensor (option)
X16 =24V
4 =USB connector
x17 =eBus
5 =USB stick for updating software (not supplied with appliance)
X18 =24V (max 5VA)
6 =Service connector
X19 =Signal output
7 =Laptop with installed service tool (not supplied)
8 =Touchscreen on appliance
Plus pcb UWA2-E
9 =Valve motor bypass valve
X03 =24V
10 =Air temperature sensor
X04 =Bus
11 =Exhaust fan*
X06 =ModBus
12 =Internal preheater incl. maximum security
X08 =Contact input 1
13 =Supply fan*
X09 =Contact input 2
14 =Power supply 230V 50Hz
X10 =Relais output 1
15 =Bedienmodul BM-2 (option)
X11 =Relais output 2
16 =CO
2
sensor eBus (option)
X12 =Analoog input (0 to 10 V)
17 =Heater eBus (option)
X13 =Analoog input (0 to 10 V)
18 =Plus pcb UWA2-E (option)
X14 =Analoog output (0 or 10 V)
19 =Connection on ModBus system (option)
X15 =Analoog output 2 (0 or 10 V)
20 =X12 is Jumper terminating resistance (120 W) ModBus (remove
if terminating resistance has already been placed in ModBus
system).
With Modbus application remove the jumpers X121 & X122;
when using Bus place the jumpers X12, X121 & X122; remove
Jumper X07 from Plus pcb UWA2-E when a Plus pcb is applied.
X16 =NTC 10K
X17 =LAN
Wire colours
* The control cables of the fans can be switched with no problem;
when the power is switched on the appliance determines itself
which is the supply and exhaust fan!
When the appliance detects another fan (for example when a
fan is replaced during service activities), then a “wizard” starts
up automatically; follow the instructions on the display for the
correct connection of the fan cables.
C1
C2
C3
C5
C8
C10
C11
C17
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brown
blue
green/yellow
white
grey
yellow
green
purple
Electrical diagram
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34 | WOLF GmbH
7100833_202010
