In 2006, we replaced several units for White's Ace Hardware stores. They give a good example of replacing "rooftop" units...
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This old Carrier needed a new circuit board. That put it on the chopping block at the Nora store. |
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The opening in the roof. The unit sits on a "curb" and the ducts attach to the curb. We could either replace the curb with one that matches a new unit or use a "curb adapter". We chose the latter for price reasons. |
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The curb adapter set in place ready to have the new unit put on it. |
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The final project. The curb adapter makes for a funny looking job but works well and saves a considerable amount in roofing & duct modification costs. |
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Meanwhile, at the Carmel store - 2 old units were being replaced. |
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One had the gas heat section all rotted out. All were on their 2nd heat exchanger and many were facing a 3rd. |
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They are lifted on the roof by a crane. The operator from R. H. Marlin did a fantastic job getting behind the store to lift that unit. |
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The final result there. Again the curb adapter makes for in interesting look but we had excellent airflow. |
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