Operation with Advanced Microprocessor Controls
2.4.4Run Hours Log
The total operating hours of all major components in the unit can be monitored from the display and are retained in nonvolatile memory. Run times are available for the following:
•Compressor
•GLYCOOL Coil (or CW Coil as used on Dual Cooling Unit)
•Fan
•(HUM) humidifier
•(RH1) reheat 1 (or Hot Water or SCR Reheat)
•(RH2) reheat 2
The component run hours for each individual component can be reset by selecting the run hours dis- play screen for the desired component, then pressing ENTER within 5 minutes of applying power to the control. The user will then be prompted to press ENTER to clear the selected component's run hours.
NOTE
Run hours for a component should be reset ONLY when the component has been replaced.
2.4.5Analog Sensors
The four (4) analog sensor inputs can be monitored from the display. The inputs are filtered, then dis- played along with the text label assigned during setup. See Analog Setup on page 11.
2.5Setpoints/Setup
Selecting Setpoints/Setup from the Main Menu will display the following selections:
•View setpoints
•Setup system
•Run diagnostics
•Change passwords
NOTE
Setpoints and system setup parameters are kept in nonvolatile memory.
2.5.1View Setpoints
Control and alarm setpoints can be reviewed and/or changed through the display. The following table lists the default setpoints and their allowable ranges.
Table 1 Default setpoints and ranges
Setpoint | Default | Range |
|
|
|
Temperature Setpoint | 72°F | 40 to 90°F (5 to 32°C) |
|
|
|
Temperature Sensitivity | 2.0°F | 1 to 9.9°F (0.6 to 5.6°C) |
|
|
|
Humidity Setpoint | 50% | 20 to 80% RH |
|
|
|
Humidity Sensitivity | 5% | 1 to 30% RH |
|
|
|
High Temperature Alarm | 80°F | 35 to 95°F (2 to 35°C) |
|
|
|
Low Temperature Alarm | 65°F | 35 to 95°F (2 to 35°C) |
|
|
|
High Humidity Alarm | 60% | 15 to 85% RH |
|
|
|
Low Humidity Alarm | 40% | 15 to 85% RH |
|
|
|
6
