VAV II Miscellaneous

Configuring Excel 10 VAV II Miscellaneous

Use the VAV Miscellaneous page to configure VAV Miscellaneous settings.

Purpose

Define miscellaneous parameters for a VAV II Controller. Define miscellaneous parameters for a VAV II Controller.

Mode

Configuration can be performed with the device On-line or Off-line.

Procedure

  1. Click the Miscellaneous button on the left pane to open the Miscellaneous Parameters page.
  2. Enter information into available fields.
  3. Click Commit to save the settings or Reset to revert to the last saved settings.
  4. Click Next to display the Custom Wiring page or Back to display the Flow Pickup Table page.

Fields

Name Definition
Percent Max Flow Percentages of maximum flow for the following categories:
  • Window
  • Reheat
  • Minimum
  • Maximum
  • Standby
  • Press
  • Depress
  • Purge
  • Warmup
Bypass Settings  
Time Bypass Time (in minutes, default is 180) is the time between the pressing of the override button at the wall module and the return to the original occupancy state. When the Bypass state is activated, the bypass timer is set to the Bypass time.
Type Select either Normal or Bypass
Priority Select either Last or Net.
Periph Min Pos Percentage for peripheral valve minimum position.
Demand Limit Offset Degrees of offset for demand limit. Activated when DestDlcShed is True or active.
Temp Ramp Rate Ramp time for temperature.
Fan Flow Setpoint Setpoint in cfm for fan flow.
Fresh Air Required Amount of fresh air required in cfm. FreshAirRatio is equal to FreshAirReq divided by SrcBoxFlow. When FreshAirRatio is large (greater than 100 percent), there is insufficient fresh air being supplied to the zone even if the supply air is 100 percent fresh air. When FreshAirRatio is small, there is sufficient fresh air being supplied to the zone. FreshAirRatio is used for coordination within the HVAC subsystem and energy management decisions by the supply equipment.

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