In the event that the retaining ring is missing do not 1. Replacement demand defrost control board.

Dc9c66 Goodman Heat Pump Defrost Control Board Wiring Diagram
York defrost board wiring diagram. Just a precautionary note this takes a lot of ram to run at least 32 meg. Goodman defrost board wiring diagram collections of goodman defrost board wiring diagram for 133 wire center. How to know if your heat pump defrost board is working properly so that it wont freeze up. York retail system specific wiring diagrams january 2012. Page 5 51516 n3y caution. User manuals york heat pump operating guides and service manuals.
Defrost the defrost board db is a time and tempera ture control which includes a field selectable time period between checks for frost 30 50 and 90 minutes. York hvac wiring diagrams simple electronic circuits. After installing autodesk view you can automatically open drawings from the web site by simply clicking on. Once you have 24 volts move to step two. Connect one side of the 24 volt wiring from transformer to the wire going out to one side of the 24v contactor. Electronic timer and defrost cycle start only when contactor is energized and defrost thermostat dft is closed below 36 f 22 c.
W1 out output to energize 1st stage heat when in defrost. If it is then move to step two. S1 33101975102 computer hardware pdf manual download. Supervision is needed by a licensed hvac tech before doing this as experience and apprenticeship garners. Wiring diagram split system heat pump new goodman gas pack wiring. How this defrost control board works heat pump wiring for defrost cycle.
The valve body and possibly cause personal injury. W2 out output to energize 2nd stage heat when in defrost w166 used to energize 1st stage heat when in defrost. If you do not replace transformer you may need to wire the transformer directly to the line power depending on how the board fried. To view the wiring diagrams download and install the free version of voloview express from autodesk. If the valve stem is backed out beyond the retaining the wiring diagram inside the unit control box cover before ring system pressure could force the stem out of connecting to power supply. Download 818 york heat pump pdf manuals.
Check to verify that the transformer is supplying 24 volts. Xl can be eliminated as the fault codes can be retrived from the board. View and download york s1 33101975102 installation instructions online. Furnace control board wiring diagram elegant goodman heat pump. Goodman heat pump defrost board troubleshooting. How to troubleshoot a defrost board.