System Application: Dual Fuel, 24 Vac systems; Gas, Oil, Electric Warm Air; Hot water Coil; Gas, Oil, Electric Hydronic; or Steam / Gravity Systems; Stages Heat/Cool: Up to 3/2 Heat Pump and 2/2 Conventional; Power Method: Hardwired; Terminal Designations: RC, R, C, W, W2 - AUX, Y, Y2, O/B, G, K,…