24Vac Transformers - for Schwank Series 2100, 2300 Models

Each zone transformer is sized to suit the total number of heaters being controlled in that respective zone. Select the appropriate transformer(s), based on number of heaters (2100 & 2300 Series Models). 

For a single heater, use one 40 VA transformer. On a zone with multiple heaters, use a transformer sized at 40 VA for the first heater, and 20 VA for each additional heater. 

Remote control for 2300 Series heaters requires a 24 volt transformer[s] sized to suit the total number of heaters installed.