Tstat swap w/ single phase? heat pump

Old 05-05-14, 06:34 AM
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Tstat swap w/ single phase? heat pump

Hi all. Hoping this is an easy question for someone. I just changed an analog Honeywell over to a digital non-programmable Honeywell on my sister's ac unit. It's a FHP model:EM031-1VTN. Label says listed heat pump 16LF. The old tstat was wired G-G, R-R, W-O, Y-Y and jumped to W. Wired the new one the same, but no jumper from Y to W, as the W is the same as the O/B on the new tstat. Set the tstat for single phase heat pump. Everything seems to work properly, but the condenser and blower kick on and off together. Previously, the blower would kick on first and run for a short time after the condenser shut off. Is this ok? Thanks for any input.
Old 05-05-14, 08:02 PM
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I don't see why changing the stat would cause the blower to run differently. The fan on/off delay is supposed to give you more comfort in giving the indoor coil time to heat up or cool off prior to the fan coming on but in general it isn't noticeable.

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