Daikin MicroTech Operation And Maintenance page 13

Cooling Mode
Default Values:
1. Min DAT CLG Setpoint = 55
2. Max DAT CLG Setpoint = 65
3. Min DAT CLG Ctrl Setpoint = 75
4. Max DAT CLG Ctrl Setpoint = 78
Min DAT Clg Setpt: Minimum cooling discharge air temperature
allowed when unit is in cooling mode and the reset is enabled.
Max DAT Clg Setpt: Maximum cooling discharge air temperature
allowed when unit is in cooling mode and the reset is enabled.
Min DAT Clg Ctrl Setpt: Minimum discharge air temperature
control value. When the control temperature is less than or equal to
Min DAT Ctrl Setpt, the DAT Cooling value = Max DAT Clg Setpt.
Max DAT Clg Ctrl Setpt: Maximum discharge air temperature
control value. When the control temperature is equal to or
greater than Max DAT Ctrl Setpt, the DAT Cooling value = Min
DAT Clg Setpt.
The unit enters cooling mode when the control temperature is
above the effective cooling setpoint.
If the cooling reset is enabled, when the control temperature is
between the MinDAT Clg Ctrl Setpt and the MaxDAT Clg Ctrl
Setpt, the DAT setpoint will vary linearly between the Max DAT
Clg Setpt and Min DAT Clg Setpt values as depicted in Figure 5.
Figure 5: Discharge Air Temperature Cooling vs. Discharge Air Temperature Cooling Setpoint
cpMaxDATClgSetpt
(default: 65°F)
Effective DAT Cooling
Setpoint (example: 60°F)
cpMinDATClgSetpt
(default: 55°F)
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DATControlTempClg Vs. DAT ClgSetpt
Control Temperature (example: 76.5°F)
cpMinDATClgCntlSetpt (default: 75°F)
DATControlTempClg
13
Description of Operation
cpMaxDATClgCntlSetpt (default: 78°F)
OM 1280-2 • MICROTECH UNIT CONTROLLER