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The EX8-I21 is a uni-flow model
Utilizing an industrial HVAC cooling fan with the exact factory pitch and diameter prevents premature motor bearing failure and optimizes thermal heat transfer
This board is essential for maintaining precise temperature regulation and preventing common compressor short-cycling issues caused by logic failures
If the outdoor unit utilizes a reciprocating compressor
permitting use with smaller pitch diameter sheaves common in modern air handling units
Eaton Cutler-Hammer MST02SN Starter 328140-751 The EX8-I21 is a uni-flowThe Eaton Cutler Hammer MST02SN is a heavy duty manual motor starter designed for dependable single phase motor control in commercial and industrial HVACR applications. Built to NEMA 1 standards, this 2 pole, toggle operated starter provides local ON OFF switching and reliable overload protection for small motors up to 1 horsepower at 115V or 2 horsepower at 230V. This Type MST starter utilizes a compact, open frame design that integrates easily into