Question about Carrier Hn51kc024 Coil Sp Contactor 24v P282-0311
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Posted on Jan 02, 2017
SOURCE: Carrier A/C units
Double check that the new contactor has the same electrical ratings on it. My guess is that the coil should be 24v while the relay should be able to carry the same amperage at 220v.
First shut off the breaker and disconnect switch for the furnace and outdoor condenser and call a licensed HVAC contractor:)
If you are determined to do it yourself, Then read the schematics first. Be aware, if you mis wire the system you may cause more damage than you have now. Not to mention your personal safety is at risk.
I am basing this on the most common style contactor found in my area.
The main relay side should be labeled. (eg. L1,L2-T1, T2). These should match exactly like the old one. L1 and L2 are the incoming power. T1 and T2 are the power leaving the contactor. All the 220v wires should correspond to one of these four terminals either by screwing them down or fitting the spade connectors together.
Usually the 24v wires will plug onto the coil (near the bottom, left and/or right sides of the contactor) silver spade connectors.
(STEP 1.) Leave all Wires Connected to your Old Contactor.
(STEP 2.) Remove the two mounting screws that hold the Old Contactor to the Air Conditioners casing.
(STEP 3.) Now Install the New Contactor to the old contactors existing location using the Same two Screws.
(STEP 4.) Now take Off one wire at a time from your old Contactor and Install each wire one at a time to the proper location on the new Contactor.
Posted on Jun 25, 2008
Hi!!! Does your ac unit work fine?If not check your low voltage problem..You have a low voltage problem check the wire going out to your condensor make sure that they are not touching..Good luck..Check low voltage wires..short in progress..
Posted on Jan 04, 2009
use a seperate capicitor for the fan only pick up 1 leg of power from common side of the compressor cap and the other from the contactor or the board in a heat pump situation
Posted on May 11, 2009
The board is bad, what you can do is splice into the common (blue) and Yellow t-stat wires and connect them directly into the contactor and hopefully the reversing valve engages, giving you cooling for the time being
Posted on May 18, 2009
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