Attributes (Dehumidification Sequencing) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 15.0

Controller Tool Help
Product
Controls > Control Tools > Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
15.0
Revision date
2022-11-18

The following table describes the attributes used by the Dehumidification Sequencing module.

Table 1. Dehumidification Sequencing Attributes

Name

Description

Default Value

Cooling Control Status

Contains the value fed back from the cooling controller that is necessary for the sequencer to determine what actions to take. This input is the PID status from cooling output controller.

Normal

Set Name: Control Status

Cooling Setpoint

Desired occupied cooling temperature setpoint (must be equal to or greater than the heating setpoint).

23 °C,

73 °F

Dehum Process Variable

Zone air humidity or the return air humidity.

50.0%RH

DEHUM-STATE (State)

Represents the current state generated by the AHU dehumidification sequence.

Set Name: AHU Dehum States

See Primary States (Dehumidification Sequencing).

Eff Heating Setpoint

Effective occupied heating temperature setpoint used by the heating output controller (if present). When dehumidification is active, this equals the Cooling Setpoint input, otherwise it equals the Heating Setpoint input.

21 °C,

69 °F

Heating Setpoint

Desired occupied heating temperature setpoint (must be equal to or less than the cooling setpoint).

21 °C,

69 °F

Humidity Setpoint

Defines the dehumidification setpoint.

60.0%RH

Process Variable

Temperature being used to control the heating and cooling devices.

22 °C,

71 °F

Reheat Control Status

Contains the value fed back from the heating controller that is necessary for the sequencer to determine what actions to take. This input is the PID status from heating output controller.

Normal

Set Name: Control Status

Reheat isAvailable

Indicates the presence of a reheat coil.

True