VAVMinimumTurndownDuringReheatPressureReset
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Brief Description
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When a vav box is in reheat mode, the ratio of vav airflow rate to vav max airflow rate must not be greater than the min design turndown ratio and the pressure setpoint must remain the same

Index Description
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   * Section 6.5.2.1 ASHRAE 90.1-2016

Datapoints Description
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   * flag_coil_reheat: VAV box reheat coil operation status
   * flow_volumetric_air_vav: VAV airflow rate
   * flow_volumetric_air_max: VAV maximum airflow rate
   * ratio_turndown_min: Minimum VAV turndown ratio
   * pressure_duct_setpoint: Duct static pressure setpoint

Type Verification Description
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Rule-based

Assertions Type
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Pass

Assertions Description
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   * if flag_coil_reheat:

   *   if flow_volumetric_air_max == 0:

   *      Untested

   *   if flow_volumetric_air_max > 0.0 and flow_volumetric_air_vav / flow_volumetric_air_max > ratio_turndown_min:

   *     if pressure_duct_setpoint_prev is None:

   *         Untested

   *     elif abs(pressure_duct_setpoint - pressure_duct_setpoint_prev) > 0:

   *         Untested

   *     else:

   *         fail

   *   else:

   *      pass

   * else: 

   *     Untested

   * end