Liebert Mini-Mate2 MMD24E - 7 System Performance Microprocessor Controls; Temperature Control; Cooling;Heating Required; Cooling Operation (Cooling, Compressorized Direct Expansion and Chilled Water)

System Performance Microprocessor Controls
53 Liebert
®
Mini-Mate2
™
7.0 SYSTEM PERFORMANCE MICROPROCESSOR CONTROLS
This section provides a detailed description of how the Liebert Mini-Mate2 responds to operator
inputs and room conditions.
7.1 Temperature Control
7.1.1 Cooling/Heating Required
The temperature control program for the microprocessor is based on a calculated percentage
requirement for cooling/heating.
7.1.2 Cooling Operation (Cooling, Compressorized Direct Expansion and Chilled Water)
Cooling is ACTIVATED when the temperature control calculates a requirement for cooling of 100%. It
is DEACTIVATED when the cooling requirement drops below 50%. The optional hot gas bypass is
energized when a call for cooling occurs, unless there is also a call for dehumidification.
Table 27 Cooling and dehumidification load response of hot gas bypass
Situation Response
Cooling only ON
Dehumidification only OFF
Cooling with Dehumidification OFF