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2 Posts
I installed a new 2 stage TM8V furnace last fall. I kept my old single stage condensing unit. Because this is a 2 stage furnace, it can be wired for a 2 stage condenser or heat pump. I wired the signal to Y1. I only get low speed on the cooling which is insufficient. If I wanted the high speed, would I then wire it to Y/Y2 or just jump Y1 to Y/Y2. Thanks-
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