46 • Mini dap4 User Manual
3. Reheat will be overridden by humidication when the humidier setting is programmed for Computer, Non-Modulat
ing or Computer, Modulating (See Menu J – Factory Settings).
HUMIDIFICATION
1. Humidication will inhibit the reheat if programmed (See Menu J - Factory Settings) for Humidier: Computer Non-
Modulating or Humidier: Computer Modulating. Reheat is allowed during humidication if programmed for
Humidier Comfort, Non-Modulating or Humidier Comfort, Modulating.
2. There is a one (1) minute delay between the stop-to-start of humidication.
3. There is a ve (5) minute delay between the dehumidication and start of humidication.
4. The humidication staging sequence of each adjustment period for ON/OFF of non-modulating humidiers is as
follows:
Humidier is ON at Humidity Setpoint – Humidity Deadband
Humidier is OFF at Humidity Setpoint – 1.0%
5. The humidication staging sequence for a modulating humidier is as follows:
Valve is OPENED at Humidity Setpoint – 1.0%
Valve is CLOSED at Humidity Setpoint – 0.5%
6. When the humidier valve is opened, its position will follow a linear ramp that goes from 25% open with the
humidity at setpoint minus 0.5% to 100% open at setpoint minus humidity deadband.
DEHUMIDIFICATION
1. Dehumidication Mode can be programmed with one or two compressors (dual compressor units only) for
dehumidication and with or without reheat limits (See Menu J – Factory Settings).
2. If dehumidication is programmed for “In Limits” dehumidication will inhibit if the return air temperature drops to
temperature setpoint minus temperature deadband minus 2°F. Dehumidication will be inhibited until the return air
temperature rises to the temperature setpoint. Compressor short-cycle time will not be violated.
3. If dehumidication is programmed for “No Limits” it will remain ON until the humidity setpoint is reached. In this
mode dehumidication has priority and overcooling is disregarded. The reheat sequence will remain the same.
4. If dehumidication is programmed for two (2) compressors, with or without reheat limits, only one (1) compressor
will be allowed if reheat is required.
5. There is a one (1) minute delay between stop-to-start of dehumidication. Compressor short-cycle time delay will
not be violated.
6. There is a ve (5) minute delay between dehumidication and humidication.
7. The compressor staging sequence for dehumidication at each adjustment period is as follows:
Cool 1 ON at Humidity Setpoint + Humidity Deadband
Cool 2 ON at Humidity Setpoint + Humidity Deadband + 1% (LCS Dual Compressor Units)
Cool 2 OFF at Humidity Setpoint + 1% (LCS Dual Compressor Units)
Cool 1 OFF at Humidity Setpoint
8. The sequence for dehumidication with Energy Saver or Auxiliary Chilled Water Cooling is as follows:
Valve is OPENED to 100% at Humidity Setpoint + Humidity Deadband
Valve is CLOSED at Humidity Setpoint
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