Control Board Overviews - Bosch IDS BOVA20 Installation Instructions Manual

Installation Instructions

15.10 Control Board Overviews

Main Control Board for 24/36 ODU Model
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Figure 45
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Bosch IDS BOVA20 & BOVC20 Split System Heat Pump - BTC 761703109 A (12.2023)
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
13
7 T3 T4 T3L sensor port
12
8 Pressure transducer port
9 T5 sensor port
11
10 Reserve
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11 EEV port
9
12 Reserve
8
13 Reserve
7
14 High pressure switch port
6
15 SW2 FORCE BUTTON
5
16 SW3 CHECK BUTTON
17 Reserve
4
18 USB
3
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