Bosch IDS BOVA20 - Control Board Overviews

Installation Instructions
Bosch IDS BOVA20 & BOVC20 Split System Heat Pump - BTC 761703109 A (12.2023)
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15.10 Control Board Overviews
Main Control Board for 24/36 ODU Model
Figure 45
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No. Function Description
1 Compressor crankcase heater port
2 Pressure equalizer valve port
3 Reversing valve port
4 Thermostat wire connections
5 Th sensor port
6 TF sensor port
7 T3 T4 T3L sensor port
8 Pressure transducer port
9 T5 sensor port
10 Reserve
11 EEV port
12 Reserve
13 Reserve
14 High pressure switch port
15 SW2 FORCE BUTTON
16 SW3 CHECK BUTTON
17 Reserve
18 USB
19 J2 Dip SWITCH: Select capacity
20 SW5 Dip SWITCH:Defrost logic settings
21 SW4 Dip SWITCH:Control logic settings
22 LED
23 ECM motor port
24 Compressor: W port
25 Compressor: V port
26 Compressor: U port
27 Power input
28 Power input