Odu Pcb & Ipm - Bosch Climate 5000 Series Service Manual

7.3 ODU PCB & IPM
7.3.1 PCB: Regular 115V Single Zone 12K
BMS500-AAS012-0CSXRC
Figure 23
Number Name
1 Power Supply
2 S
3 4-WAY
4 HEAT1
5 HEAT2
6 AC-FAN
7 TESTPORT
8 TP T4 T3
9 DC-FAN
10 PMV
11 FAN_IPM
W
12 V
U
13 COMP_IPM
14 BR1
15 CN4
Table 15
Bosch Wall Mounted Ductless Split Air Conditioner / Heat Pump IDU-ODU - BTC 769102301 A (11.2022)
CN# Description
CN3 Earth: connect to Ground
CN1 N_in: connect to N-line (100-130V AC input)
CN2 L_in: connect to L-line (100-130V AC input)
CN16 S: connect to indoor unit communication
CN60 connect to 4 way valve, 100-130V AC when is ON.
CN17 connect to compressor heater, 100-130V AC when is ON
CN15 connect to chassis heater, 100-130V AC when is ON
CN25 connect to AC fan
CN6 used for testing
CN21 connect to pipe temp. sensor T3, ambient temp. sensor T4, exhaust temp. sensor TP
CN7 connect to DC fan
CN31 connect to Electric Expansion Valve
IPM 501 IPM for DC fan
CN28 connect to compressor
CN29 0V AC (standby)
CN30 10-230V AC (running)
IPM1 IPM for compressor
BR1 Bridge
CN4_2
connect to transformer
CN4_3
Service Manual
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