Specifications

PRT-CTRL-SE Protege System Controller Reference Manual | PRT-CTRL-SE 223
Register Offset Register Function
4 RTHP Deadband Process
The deadband process is where the RTHP will wait for a condition that is outside the set
points for heating, cooling or dehumidification.
5 On Call For Space Heating
The space temperature is below the heating set point and the function to start the
heating process is active. This will activate the stages required to bring the temperature
up to the heating set point.
6 On Call For Space Cooling
The space temperature is above the cooling set point and the function to start the
cooling process is active. This will activate the stages required to bring the temperature
down to the cooling set point.
7 On Call For Fresh Air Space Cooling
The space temperature is above the cooling set point and the outside air is below the
free air cooling set point, the RTHP will oscillate the fresh air economizer in attempt to
cool the space using the fresh air intake. This will remain active until the temperature is
below the cooling set point or if the free cooling fails to achieve set point in the set time
(Free Cooling Time) mode 6 will be entered.
8 Heating Stage Off
Heating stages are being turned off progressively due to the set point being reached.
9 Cooling Stage Off
Cooling stages are being turned off progressively due to the set point being reached.
10 Dehumidification Cooling Plus Reheat
Dehumidification is required and the current set point is above the cooling set point. The
dehumidification stage will be entered in an attempt to get the humidity under control.
11 Dehumidification Transition
The dehumidification process is in a transition between the dehumidification
requirements and cooling.
12 Dehumidification Heating
Dehumidification is required and the current set point is below the heating set point. The
dehumidification stage will be entered in an attempt to get the humidity under control
while an attempt is also made to obtain heating set point.
13 Dehumidification Heating Stage Off
Dehumidification and heating stages are deactivated because the humidity has come
under control or the cooling set point (other side of the dead band setting) has been
reached.
14 Dehumidification Cooling Stage Off
Dehumidification and cooling stages are deactivated because the humidity has come
under control or the heating set point (other side of the dead band setting) has been
reached.
15 Dehumidification Stage Off
Dehumidification stages are deactivated because the humidity has reached set point and
dehumidification is no longer required.
16 RTHP Shutting Down
The RTHP is completing an orderly shutdown of the currently activated stages and the
fan control signals.