IB SetpointManagerSingleZoneHumidityMaximum

The Single Zone Maximum Humidity Setpoint Manager allows the control of a single zone maximum humidity level. This setpoint manager, used in conjunction with object {ZoneControl:Humidistat}, detects the air humidity level in a single control zone and uses air/moisture mass balances to calculate the supply air humidity ratio needed to maintain the zone relative humidity at or below a given setpoint. The calculated supply air humidity ratio is then used as the setpoint for the designated setpoint node. A dehumidification component placed upstream of this node can then use the humidity ratio setpoint to control its moisture removal rate (e.g., desiccant dehumidifiers). In the case of a chilled water coil which is used for both temperature and high humidity control, this setpoint manager works in conjunction with a {Controller:WaterCoil} object to determine the minimum supply air temperature required to meet both the temperature (sensible) and humidity (latent) load in the control zone. S.... (Due to the length of content, documentation has been shown partially) Above content copyright © 1996-2025 EnergyPlus, all contributors. All rights reserved. EnergyPlus is a trademark of the US Department of Energy.

Inputs

• Ctrlzone [Required]

The name of the zone air node for the humidity control zone (as specified in the object {ZoneHVAC:EquipmentConnections}). An example of this object in an input data file (IDF), along with a temperature set point manager, humidistat, and a simple controller, is shown below: SetpointManager:SingleZone:Humidity:Maximum, Zone Max Set Point Manager, !- Name VAV Sys 1 Outlet Node, !- Setpoint Node or NodeList Name Zone 2 Node; !-Control Zone Air Node Name SetpointManager:Scheduled, Scheduled Set Point Manager 1, !- Name Temperature, !- Control Variable Seasonal Reset Supply Air Temp Sch, !- Schedule Name VAV Sys 1 Outlet Node; !- Setpoint Node or NodeList Name ZoneControl:Humidistat, Zone 2 Humidistat, !-Name ZONE 2, !- Zone Name Min rel Hum Set Sch2; !- Humidifying Relative Humidity Setpoint Schedule Name Controller:WaterCoil, Central Cooling Coil Controller 1, !- Name TEMPandHUMRAT, !- Control Variable Reverse, !- Action FLOW, !- Actuator Variable VAV Sys 1 Outlet Node, !- Sensor Node Name Main Cooling Coil 1 Water Inlet Node, !- Actuator Node Name 0.002, !- Controller Convergence Tolerance deltaC 0.025, !- Maximum Actuated Flow {m3/s} 0.0; !- Minimum Actuated Flow {m3/s}

Outputs

• SPM

TODO:...