Bard TCS22-***-003 - Manual (Page 71)

2100-444-003A
Page 65
Setpoint by .25 BTU / lb. until the Maximum allowed Setpoint of 60 BTU / lb. is reached. Clicking on
the Left arrow will decrease the Enthalpy Setpoint by .25 BTU / lb. until the Minimum allowed Setpoint
of 5 BTU / lb. is reached.
This setpoint may or may not be active and visible depending on the economizer changeover
scheme chosen in the Misc. tab.
6.4.2.10 Dry Bulb Changeover Setpoint
The Dry Bub Setpoint is used to determine if the outside air is suitable to use for cooling the
structure. The default value for this point is 48 F o .This will ensure that the economizer will never bring
in outside air that is too warm to provide cooling.
Next to the Dry bulb Changeover Setpoint value is a scroll bar. Clicking on the Right Arrow will
increase the Enthalpy Setpoint by 1.0 degree until the maximum allowed Setpoint of 80 degrees is
reached. Clicking on the Left arrow will decrease the Dry bulb Changeover Setpoint by 1.0 degree until
the minimum allowed setpoint of 40 degrees is reached. This setpoint may or may not be active and
visible depending on the economizer changeover scheme chosen in the Misc. tab.
6.4.2.11 Dehumidification Setpoint
The dehumidification setpoint requires an authority level of Supervisor or higher to change.
Anyone may view the setpoint value. The Dehumidification Setpoint Range is from 50 to 70 % RH. The
default value is 50 % RH.
6.4.2.12 Continuous Blower Enable
The Continuous Blower Enable will run the lead unit blower continuously for the entire
Lead/Lag period. This means that one of the blowers will always be running. The Continuous Blower
operation is either set to Yes (with the box checked), or set to No (with the box unchecked).
6.4.2.13 Active Cooling Setpoint
The Active Cooling Setpoint displays the current cooling setpoint that the controller using to
determine whether cooling is required or not. If the Zone temperature is above the Active Cooling
Setpoint, Stage One Cooling will be on.
The Active Cooling Setpoint will be one of three values. If the controller is in occupied mode,
the Active Cooling Setpoint will be the same as the Occupied Cooling Setpoint. If the controller is in
unoccupied mode, the Active Cooling Setpoint will be the same as the Unoccupied Cooling Setpoint.
Occupancy is determined from the After-hours Occupancy Override Button located on the temperature
sensor on the front of the TCS22. If the controller is in Dehumidification mode, the Active Cooling
Setpoint will be 73
o the same as the fixed Dehumidification Cooling Setpoint.
6.4.2.14 Active Heating Setpoint
The Active Heating Setpoint displays the current heating setpoint that the controller using to