Min/max control by the supervisory controller - Basic Documentation - GDB181.1E/BA - GDB181.1EMBA - GLB181.1E/BA

When setting the minimum / maximum air volume flow in the supervisory controller, the VAV Compact Controller has to be configured with = 0% and = 100 %.

Setting example A1

VAV ratio control 1 : 1

Reference signal: Y_{supply_air} = Y_{extract_air} = 35 %

Result: V_{supply_air} = V_{extract_air} = 35 %

Setting example A2

VAV ratio control, 20 % constant excess supply air volume flow (positive pressure in the room)

Reference signal: Y_{supply_air} = 35 %, Y_{extract_air} = Y_{supply_air} - 20 % = 15 %

Result: V_{supply_air} = 35 %, V_{extract_air} = 15 %

Setting example A3

VAV ratio control, 20 % constant excess extract air volume flow (negative pressure in the room)

Reference signal: Y_{supply_air} = 35 %, Y_{extract_air} = Y_{supply_air} + 20 % = 55 %

Result: V_{supply_air} = 35 %, V_{extract_air} = 55 %