Bosch CS3400iAWS 6 OR-S - Wiring Diagrams; Wiring Diagram for CS3400 iAWS 4 OR-S

Technical information
Compress 3400i AWS – 6721825369 (2021/11)
22
Table 10 Sensors connected to indoor unit
Table 11 Sensors connected to outdoor unit
9.4 Wiring diagram
9.4.1 Wiring diagram of CS3400iAWS 4 OR-S
WARNING
Risk of electric shock!
Working on electrical components can result in electric shocks.
▶ Do not preform any electric work while LED are on and wait at least
one minute after power off.
Fig. 27 Wiring diagram outdoor unit single phase CS3400iAWS 4 OR-S
[1] Compressor
[2] Outdoor unit fan motor
[3] ODU HMI outdoor unit
[4] External alarm connection
[5] Power supply to main board
[6] CBI (communication board to indoor unit)
[7] LED (operate/status/fault)
[8] Main controller
[B] Power supply to outdoor unit (230V~, 50Hz)
[C] Communication to indoor unit
[BLU] Blue
[BRN] Brown
[WHT] White
[YEL] Yellow
[GRN] Green
[BH] Base heater
[MDC] CBI board DC power supply port
[CCH] Crank case heater
[COMM] Communication
[CTT] Compressor top temperature
[EEV] Electronic expansion valve
[GND] Ground (earth)
[HPS] High pressure switch
[M2L] Auxiliary communication
[OAT] Outdoor air temperature
[OCT] Outdoor coil temperature
[OMT] Outdoor coil middle temperature
[RV] Reverse valve
[- - -] Optional
Category Symbol Meaning Remarks
Indoor unit JR1 Plate heat exchanger refrigerant gas line pressure See manual for indoor unit
TC0 Plate heat exchanger water inlet temperature
TC3 Plate heat exchanger water outlet temperature
TR3 Plate heat exchanger refrigerant liquid line temperature
Category Symbol Meaning PCB Connector Type
Outdoor unit TR4 Fin tube heat exchanger refrigerant liquid line temperature OCT NTC-10k Ω
TR6 Refrigerant discharge (hot gas) temperature CTT NTC-50k Ω
TR8 Fin tube heat exchanger middle temperature OMT NTC-10k Ω
TL2 Air temperature OAT NTC-10k Ω
MR1 High pressure switch HPS NA
CAN COMM
CAN
TERMINATE
SW501
P501
CAN
ODU COMM
P201
M2L
P202
MDC
P101
ODU COMM
RED
GREEN
CAN ID
SW401
YEL
BLK
WHT
P102
GND
YEL/GRN
L
N
GND
C
COMMMDC
M
OFF
ON
DIP SWITCH
15
MAIN EEV
OMT
OAT
CTT
OCT
P807
P104
P105
BH/CCH 250V/1A
CN701
P811 P109
FLASH
PORT
OPERATE
P102
P804
P801
P803
P802
RV
P101
P107
P106
N-IDU
L-IDU
FUSE
250V/16A
HMI
BLUE
WHITE
DC_LED
P601
OFAN 1
HPS
M2L
GEN.DRY
LED
FAULT
STATUS
J1
M
GND
CHOCK
COIL
U
W
S(V)
C(W)
R(U)
RED
BROWN
BLUE
P501
V
P404
P108
P401
P403
P402
GND
CAN H
CAN L
CAN GND
BLUE
BROWN
YEL/GRN
WHT
BLK
YEL
CAN H
CAN L
CAN GND
B
BLUE
BROWN
YEL/GRN
WHT
BLK
1
3 4
2
5
ALARM 12V/30mA (EXTERNAL RELAY)
7
8
6
0010036054-002