Question about Heating & Cooling
What do you mean the n/c switch hooks up to the heater box
Remember a fan switch has 2- contacts pus coil power (24volts) a normaly open --and a normaly close thus n. o. contacts and a n. c. .. contacts and and you hook the 24volt coil contact to cool and the hi-speed fan switch to the n.o. contacts... SO when it don't calls for cool the n.c. contact wil send power to the low speed wire for heat (red to the fan motor which connects to the temperature control which cycle on the fan when calling for heat! HEY, you didn't give enough information, like WHAT___WHERE___WHEN__WHO ??? ____ model #-- name of unit-- age-- gas fire or electric ---upflw or downflow?
Posted on Sep 09, 2008
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Posted on Jan 02, 2017
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