If you know the specific manufacturer of your Heat Pump System - select the diagram below for specific wiring guidance.

Amana     

American Standard / Trane   

American Stabilis   

Arco Snyder General Comfortmaker
         
Armstrong Air-Ease

Bard

B.D.P. Bryant -Day-Night_Payne

Carrier

Comfort_Air

Crispaire Marvair

Econar

Fedders

Florida

Friedrich 

GEO

General Electric  

Janitrol/ Tappan 

Keeprite 

Lennox

Lux

Martin Industries

Phillips

Rheem / Ruud 

Seco

Squarr D/Sun

Trane A/S 

 Wesco / Addison 

  Westinghouse

White_Rodgers 

 Williamson 

 Zone Aire