Bosch Compress 3400i AWS Installation Manual page 22
Outdoor unit of air to water heat pump
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Also See for Compress 3400i AWS:
- Installation manual (44 pages) ,
- Operation manual (28 pages)
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Technical information
Category
Symbol
Indoor unit
JR1
TC0
TC3
TR3
Table 10 Sensors connected to indoor unit
Category
Symbol
Outdoor unit
TR4
TR6
TR8
TL2
MR1
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.
2
M
1
BLUE
W
BROWN
V
RED
U
S(V)
P501
C(W)
R(U)
DC_LED
WHITE
BLUE
CHOCK
COIL
8
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
22
Meaning
Plate heat exchanger refrigerant gas line pressure
Plate heat exchanger water inlet temperature
Plate heat exchanger water outlet temperature
Plate heat exchanger refrigerant liquid line temperature
Meaning
Fin tube heat exchanger refrigerant liquid line temperature
Refrigerant discharge (hot gas) temperature
Fin tube heat exchanger middle temperature
Air temperature
High pressure switch
3
4
P401
FUSE
P101
HMI
250V/16A
P102
GND
P105
BH/CCH 250V/1A
P106
P104
L-IDU
RV
P107
N-IDU
LED
CN701
FLASH
J1
PORT
P807
1
5
ON
MAIN EEV
OFF
DIP SWITCH
P802
P803
P811
P109
P801
MDC
COMM
P804
7
5
M
CAN COMM
ODU COMM
OMT
OAT
CTT
OCT
[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
Remarks
See manual for indoor unit
PCB Connector
OCT
CTT
OMT
OAT
HPS
BROWN
BROWN
BLUE
BLUE
YEL/GRN
YEL/GRN
GND
WHT
WHT
BLK
BLK
YEL
RED
YEL
BLK
GREEN
WHT
P102
GND
YEL/GRN
6
Compress 3400i AWS – 6721825369 (2021/11)
Type
NTC-10k Ω
NTC-50k Ω
NTC-10k Ω
NTC-10k Ω
NA
L
N
B
GND
CAN H
CAN H
CAN L
CAN L
C
CAN GND
CAN GND
0010036054-002
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