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Bruce I. Nelson, P.E., is president of Colmac Coil Manufacturing Inc., Colville, Wash. For more information about Colmac Coil’s heat exchangers and evaporators, call (800) 845-6778 or visit www.colmaccoil.com.
Understanding the importance of a thermostatic-expansion valve and
distributor operation in a direct-expansion evaporator may help you in
choosing the right refrigeration system.
