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No, damper plates are not installed on front door STF models. These damper plates are available for field installation if the customer requires lower air volumes. • What is the difference between the following models: STF-1-60-2, STF-1-60-3? The STF-1-60-2 is constructed with two blower wheels and the STF-1-60-3 has a flexible coupling on the shaft to accommodate three blower wheels. • What Star series air curtains can be converted from "F" to "R" and why? The STF-1-36, STF-1-42, STF-1-48 and STF-1-60 may be converted to rear door models with larger blower wheels. This might be necessary if your customer requests a high velocity of air provided by the larger blower wheels. • Can we have multi speed motors installed in the Star series air curtains and what horepower and the number of speeds available? The ‡ hp three speed motor from the Mark II models may be installed in the Star Models. • Are time delays available for Star series air curtains? No, Star Series air curtains are ...
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Are there damper plates on model STF air curtains?
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