Description 4-Port, 4-Valve Digital Manifold..

System Application Standard Efficient Gas Forced Air, High Efficacy Gas Forced Air, Oil Forced Air, Electric Forced Air, Hot Fan Coil, Geothermal Heat Pump, Air to Air Heat Pump, Hot Water Radiant Heat, Steam Stages Heat Cool Up to Heat Pump or Conventional Power Method Battery.

System Application 24 Vac systems Gas, Oil, Electric Warm Air Hot Coil Gas, Oil, Electric Hydronic or Steam Gravity Systems Stages Heat Cool Up to Heat Pump or Conventional Power Method Hardwired Terminal Designations RC, R, C, W, W2 - AUX, Y, Y2, O B, G, K, E, L A, S, S.

System Application 24 Vac systems Gas, Oil, Electric Warm Air Hot Coil Gas, Oil, Electric Hydronic or Steam Gravity Systems Stages Heat Cool Up to Heat Pump or Conventional Power Method Hardwired Terminal Designations RC, R, C, W, W2 - AUX, Y, Y2, O B, G, K, E, L A, S, S.