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Technical Instructions
IDS BOVA E-Box Replacement - BTC 761702110 B (09.2022)
21. Feed thermostat wires through the Bottom Access Panel to the CN9 wire
harness on the control board. Splice wires and use fi eld supplied wire nuts to
make connection. See Figure 17.
Figure 16
Thermostat Wiring Connection
- Low voltage connection must be made inside the outdoor unit control
board access panel.
- There is no terminal block for low voltage connections, wires must be
spliced using fi eld supplied wire nuts.
- Field supplied wire nuts should be 22-16 gauge.
- Refer to unit wiring diagram for more information.
22. Make sure all wires are secured and not interfering with control board. Feed
zip ties through holes in the E-box to secure wiring. Refer to Figure 18.
Figure 17
23. Feed L1, L2 and GND through the Bottom Access Panel.
24. Connect L1 and L2 to high voltage terminal block. Refer to Figure 19.
Figure 18
High Voltage Terminal Block
25. Check SW4/SW5/J2 dip switch positions. Make sure they are the same
as what was confi gured on the replaced control board. Refer to IOM or the
picture taken in Step 3.
26. Double check all wire connections, grounding, and screw positions before
powering on.
27. Screw the access panel to the control board back on using screws from Step 2.
