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Installation Instructions
Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
13.9 Control Board Overview
13.9.1 Outdoor Unit Control Board for 3 Ton Model
Figure 31
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No. Function description
1. Compressor crankcase heater port
2. Pressure equilizer valve port
3. Reversing valve port
4. Thermostat wire connections
5. EEV Port
6. Th sensor port
7. T3 T4 T3L sensor port
8. Pressure transducer port
9. T5 sensor port
10. Reserve
11. Reserve
12. High pressure switch port
13. Reserve
14. SW1 FORCE BUTTON
15. LED
16. SW2 CHECK BUTTON
17. SW5 Dip SWITCH: Defrost logic settings
18. Reserve
19. SW4 Dip SWITCH: Control logic settings
20. SW6 Dip SWITCH: Do not change
21. ECM Motor Port
22. Compressor: W port
23. Compressor: V port
24. Compressor: U port
25. Power input
26. Power input
27. Reserve
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