Bosch Compress 5800i AW - Wiring Diagram; Wiring Diagram XCU-THH (XCU HY) Module

Technical information and reports
Compress 5800i AW – 6721858460 (2023/06)
38
10.3 Wiring diagram
10.3.1 Wiring diagram XCU-THH (XCU HY) module
Fig. 42 Wiring diagram XCU-THH (XCU HY) module
[VW1] 3-way valve (heating/DHW)
[Q5] Contactor circulation pump cooling (PK2)
[Q4] Contactor DHW circulation pump (PW2, accessory)
[T0] Temperature sensor flow (heating circuit)
[TW1] Temperature sensor DHW
[TW2] Temperature sensor DHW top
[PC0] Circulation pump heat carrier (primary circuit)
[PC1] Circulation pump heating circuit
[JC0] Pressure sensor
[TC1] Temperature sensor heat carrier flow (from heat pump)
[TC0] Temperature sensor heat carrier return (to heat pump)
[HMI] Control unit UI800
[K30] Connect-Key K30RF (only in scope for the Netherlands and
Denmark)
STEPPER STEPPER HCM
HEATERHMI
K30SSK
LIN
BUS
l3 l4
l6l5 l7
04
05
220V
IN
LN
X01
X02
X03
X04
X05
X06
X07
X08
MD1
12
IN
grd
T0
12
IN grd
T1
12
IN grd
TW1
12
IN grd
l14
12
IN grd
l15
12
IN grd
l16
12
IN grd
BUS
12
EMS+
EMS-
12
EMS+
EMS-
l13
12
IN grd
TR3
VW1
A1 A2 B2B1
4321
PK2
O18 grd
OUT
12
PW2
O19
grd
OUT
12
PC1
O20
grd
OUT
12
HIGH
LOW
gnd
CAN BUS
12
34
HIGH
LOW
gnd
CAN BUS
12
34
24V= gnd
MOD BUS
12
3
A
B
TW2
12
IN grd
/TR7
BUS
0010038885-006
Q4
Q5
A1
A2
VW1 MM
ϑϑ
TC0
ϑϑ
TC1
P
JC0
Service
Key
Supply
1
LIN
2
PC0/PC1
MM
ϑϑ
TW1
ϑϑ
TW2
ϑϑ
T0
A1
A2
HMI
K30
SK