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If the old unit was a 10 SEER or less. If the old indoor coil has an expansion valve you should be fine but if it has an orifice type metering device then it should be replaced

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โˆ™ 2009-08-08 04:21:44
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Q: If your central unit is replaced outside because its unfix-able a new 5 ton unit will be replaced outside shouldn't the fan and coil unit inside also be replaced?
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