Toshiba Carrier BMS-SM1280HTLUL Service Manual page 14

 Combining the Central Controller and Power Unit
You can combine the central controller and power unit using the supplied brackets as follows in order to control
them as one unit
Power unit
Bracket
Panel
Combination method
Fix the brackets and the central
controller box together using the
screws on the box.
Fix the power unit to the brackets
using the bracket screws.
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