Dehumidification Sequencing v3 - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 16.0

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
16.0
Revision date
2023-10-02
Language
English

This module is designed for the sequencing the dehumidification process. While dehumidifying, the dehumidification devices are controlled based on the return or zone air relative humidity and the relative humidity setpoint. This module monitors the controlled relative humidity and the status of the cooling and heating devices to determine the current dehumidification control state.

For information on how the FSM determines the state, see FSM (Dehumidification Sequencing).

For an AHU where the reheat occurs at the zones, this module acts as though reheat is available. In addition to monitoring the Zone or Return Humidity, it also monitors the current temperature process variable and, if it rises above setpoint, it returns to normal temperature control.