Air Handling seq. - user manual
Cooling coil
b40 – coil 2 function = CS1 (cool sequence 1)
C11 – control probe = RET
C12 – setpoint selection = MAIN (set cool STC)
Reheating coil
b70 – coil 3 function = HS2 (heat sequence 2)
H21 – control probe = RET
H22 – setpoint selection = MAIN (set heat STH)
Fig 30_ [Examples - Reheating coil]
8.2| Example 2
Control of the return and supply temperature with cascade control through heating coil, cooling coil and dampers.
Dampers control comparing return and outside temperature.
Fig 31_ [Examples - Example 2]
Dampers
D01 – control probe = SUP (room/supply control in CASCADE)
D02 – freecool setpoint selection = CASCADE.
D03 – freeheat setpoint selection = CASCADE
D07 – changeover probe 1 = RET (return probe)
D08 – changeover probe 2 = OUT (outside probe)
Heating coil
b10 – coil 1 function = HS1 (heat sequence 1)
H11 – control probe = SUP (room/supply control in CASCADE)
H12 – setpoint selection = FRH (connected to the freeheat sequence)
Cooling coil
b40 – coil 2 function = CS1 (cool sequence 1)
C11 – control probe = SUP (room/supply control in CASCADE)
C12 – setpoint selection = FRC (connected to the freecool sequence)
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