| Overview
In this mode, the Heating Desired Temperature (HDT) and Cooling Desired Temperature (CDT) are linked. Adjusting one setpoint automatically adjusts the other while maintaining the configured deadband.
Constraint:
| CDT - HDT = Heating Deadband (HDB) + Cooling Deadband (CDB) |
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| Configuration
To configure the Dual Setpoint Fixed Deadband temperature mode, complete the following steps:
- Navigate to the desired Zones page and click the pencil icon next to Zone Schedule. If Zone Schedule is not displayed, click the Schedule dropdown and select Zone Schedule.
- The Zone Schedule page opens.Note: By default, the temperature mode appears as Dual Setpoint Fixed Deadband.
- Click the dropdown and select Dual Setpoint Fixed Deadband.
- Click Save Schedule to save the Dual Setpoint Fixed Deadband temperature mode. Then, click the pencil icon to reopen the Zone Schedule page.Note: For CCU Temperature Mode changes, click Save Schedule after each change to save and apply the selected Temperature Mode.
- Click the desired day to update the Temperature Mode schedule.Note: Users can select the desired schedule format from the available day options on the Zone Schedule page, including Everyday, Weekday + Weekend, Weekday + Saturday + Sunday, and 7-Day.
- Scroll down to view the complete Dual Setpoint Fixed Deadband user interface.
| Temperature Settings
Condition 1:
| Follow building's user limits and deadbands | Enabled |
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- The Heating User Limits and Cooling User Limits are automatically set based on the predefined building limits and cannot be modified.
- Adjusting one setpoint automatically updates the other while maintaining the configured deadband.
Example:
Parameter | Value |
|---|---|
Heating Deadband (HDB) | 2°F |
Cooling Deadband (CDB) | 2°F |
Deadband | 4°F |
Note: When Follow Building's User Limits and Deadbands is enabled, the heating and cooling deadbands are inherited from the building-level configuration and cannot be modified.
Initial state:
| Heating Desired Temperature (HDT) = 72°F Cooling Desired Temperature (CDT) = 76°F Deadband = 4°F |
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Decreasing the Cooling Desired Temperature (CDT) to 74°F automatically adjusts the Heating Desired Temperature (HDT) to 70°F to maintain the configured deadband of 4°F. |
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Result:
HDT = 70°F Both setpoints move simultaneously. |
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- Click Update to save the desired temperature settings, and then click Save Schedule to save and apply the updated temperature mode.
Note: Users can modify the temperature mode duration by updating the start and end times.
Condition 2:
| Follow building's user limits and deadbands | Disabled |
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- The Heating User Limits and Cooling User Limits are prefilled with the building-level limits and can be modified as needed. Refer to the example below.
- Adjusting one setpoint automatically updates the other while maintaining the configured deadband.
Example:
Parameter | Value |
|---|---|
Heating Deadband (HDB) | 2°F |
Cooling Deadband (CDB) | 2°F |
Deadband | 4°F |
Note: The heating and cooling deadband can be configured within a range of 0.5°F to 10°F.
Initial state:
| Heating Desired Temperature (HDT) = 72°F Cooling Desired Temperature (CDT) = 76°F Deadband = 4°F |
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| Users can update the Heating and Cooling User Limits as needed while maintaining a fixed deadband. |
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Adjusting the Heating Desired Temperature from 72°F to 74°F automatically updates the Cooling Desired Temperature from 76°F to 78°F to maintain the fixed 4°F deadband. |
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Result:
HDT = 74°F Both setpoints move simultaneously. |
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Click Update to save the desired temperature settings, and then click Save Schedule to save and apply the updated temperature mode.
Note: Users can modify the temperature mode duration by updating the start and end times.
Note: Adjusting either HDT or CDT automatically updates the other setpoint to maintain the configured fixed deadband. Setpoint changes cannot exceed configured limits.
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