System Application: 24 Vac systems, single stage heat + cool systems. Gas, Oil, Electric, or Steam / Gravity Systems. Single stage heat pumps without aux heat.; Stages Heat/Cool: 1/1; Power Method: Battery or Hardwired; Color: White;
System Application: Heat/Cool; Stages Heat/Cool: 1/1; Power Method: Hardwired or Battery; Terminal Designations: R, Rc, C, W, O, B, Y, G; Color: White; Description: Horizontal;
System Application: Heat Pump; Stages Heat/Cool: 2/1; Power Method: Hardwired or Battery; Terminal Designations: R, C, W2, E, Y, O/B, G, L; Color: White;
System Application: Conventional/Heatpump; Stages Heat/Cool: 3/2; Power Method: Hardwired or Battery; Terminal Designations: Rh, RC, C, Y, Y2, W/E, W2, G, O, B, S1, S2;