Setpoints; Hvac Scaling - Distech Controls ECL-PTU-207 User Manual

Setpoints

The Setpoints Configuration subsection contains the heating and cooling setpoints for the occupied,
standby and unoccupied modes.
Figure 38: Setpoints configuration subsection
Parameter
Unoocupied
Occupied
Standby
Freeze protection

HVAC Scaling

The HVAC Scaling subsection contains cooling and heating load values for fully open and fully closed
valves.
Figure 39: HVAC Scaling Subsection
Parameter
Minimum cooling valve
Maximum cooling valve
Minimum heating valve
Maximum heating valve
Minimum electric heater
Maximum electric heater
ECL-PTU-207 Preloaded Applications
Description
The limits between which the temperature is to be maintained by the controller when
it is in Unoccupied mode. If the temperature passes these limits, the system reacts to
bring the temperature back within these limits. In Unoccupied mode, the space
temperature is usually allowed a larger amount of variance than in Occupied mode,
thereby lowering operating costs.
The limits between which the temperature is to be maintained by the controller when
it is in Occupied mode. This temperature range should be comfortable to building
occupants.
The limits between which the temperature is to be maintained by the controller when
it is in Standby mode. In Standby mode, the temperature is usually allowed a larger
amount of variance than in Occupied mode. Still, it is maintained at a value close
enough to the occupied setpoints so that it can be varied quickly for occupancy.
The limit at which the system is maintained to prevent freezing conditions.
Description
Input the cooling load value for 0% cooling valve opening.
Input the cooling load value for 100% cooling valve opening.
Input the heating load value for 0% heating valve opening.
Input the heating load value for 100% heating valve opening.
Input the heating load value for 0% electric heater.
Input the heating load value for 100% electric heater.
Configuring the Preloaded Applications
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