The macro "RSA_AHUManSwitchNordic" provides a manual overrides signal for air handling units.
It can be used for 1 or 2 staged- and variable speed fans
It transforms three digital inputs into a manual override signal for the air handling plant strategy.
The output signals have the states:
ManSwCond |
ManSwCond_MSt |
0 = off |
1 = off |
1 = on-low |
2 = on-low |
2 = on-high |
3 = on-high |
3 = auto |
4 = auto |
"ManSwCond" can be connected to an analog value point but not to a multistate point, since multistate points do not support the value "0".
The signal "ManSwCond_MSt" can be connected to a multi-state point with the states: off; on-low; on-high and auto.
Connecting the output signal to the air handling unit plant strategy will override the fans to the following states:
Signal value |
1 stage fans |
2 stage fans |
variable speed fans |
off |
off |
off |
off |
on-low |
fan on |
fan ST1 |
fan minimum speed |
on-high |
fan on |
fan ST2 |
fan maximum speed |
auto |
automatic from an
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