Bosch Climate 5000 Series Service Manual page 34

Service Manual
Number Name
1 Power Supply
EEV-A
EEV-B
EEV-C
2 EEV-D
EEV-E
EEV-F
EEV-G
3 T3 T4 TP
4 H-PRO,L-RPO
5 OLP TEMP. SENSOR
6 TESTPORT
7 COMPRESSOR
8 DC-FAN
S-E
S-D
9 S-C(mono)
S-B
S-A
10 HEAT_D
11 HEAT_Y
12 4-WAY
13 /
Table 19
3 4 |
CN# Description
CN11 N_in: connect to N-line (208-230V AC input)
L_in: connect to L-line (208-230V AC input)
CN16
CN13
CN3
CN15 connect to 12V electric expansion valve
CN1
CN17
CN14
CN26 connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust temp. sensor TP
CN29 connect to high and low pressure swtich(pin1-pin2&pin3-pin4:5VDC pulse wave)
CN30 connect to compressor top temp. sensor (5VDC Pulse wave)
CN24 used for testing
U connect to compressor
V 0V AC (standby)
W 10-200V AC (running)
CN32 connect to DC fan
CN31
CN5
S: connect to indoor unit communication(pin1-pin2: 24VDC Pulse wave; pin2-pin3: 208 230V AC
CN34
input)
CN2
CN4
CN8
connect to heater, 208-230V AC when is ON
CN20
CN21
connect to heater, 208-230V AC when is ON
CN36
CN38 connect to 4 way valve, 208-230V AC when is ON.
CN27 connect to key board CN1
Bosch Wall Mounted Ductless Split Air Conditioner / Heat Pump IDU-ODU - BTC 769102301 A (11.2022)