G36ReheatTerminalBoxHeatingAirflowSetpoint
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Brief Description
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Terminal box with reheat when the zone state is heating following the guideline 36 recommendations

Index Description
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   * Section 5.6.5.3 (a, b) in ASHRAE Guideline 36-2021

Datapoints Description
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   * mode_system: System operation mode
   * state_zone: Zone state (heating, cooling, or deadband)
   * flow_volumetric_air_cool_max: Maximum cooling airflow setpoint
   * flow_volumetric_air_heat_max: Maximum heating airflow setpoint
   * flow_volumetric_air_heat_min: Minimum heating airflow setpoint
   * flow_volumetric_air_setpoint_min: Minimum airflow setpoint during occupied mode
   * flow_volumetric_air_setpoint: Airflow setpoint
   * signal_heat: Zone heating loop signal (0-100)
   * temperature_air_room: Room temperature
   * temperature_air_space_setpoint: Space temperature setpoint
   * temperature_air_supply: Supply air temperature setpoint
   * temperature_air_discharge: Discharge air temperature
   * temperature_air_discharge_setpoint: Discharge air temperature setpoint

Type Verification Description
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Procedure-based

Assertions Type
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Pass

Assertions Description
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   * switch mode_system

   *     case 'occupied'

   *         heating_maximum = max(flow_volumetric_air_heat_min, flow_volumetric_air_setpoint_min)

   *         heating_minimum = max(flow_volumetric_air_heat_min, flow_volumetric_air_setpoint_min)

   *     case 'cooldown'

   *         heating_maximum = flow_volumetric_air_heat_max

   *         heating_minimum = flow_volumetric_air_heat_min

   *     case 'setup', 'unoccupied'

   *         heating_maximum = 0

   *         heating_minimum = 0

   *     case 'warmup', 'setback'

   *         heating_maximum = flow_volumetric_air_heat_max

   *         heating_minimum = flow_volumetric_air_cool_max

   * 

   *     if 0 < signal_heat <= 50:

   *         if abs(flow_volumetric_air_setpoint - heating_minimum) <= 0 and temperature_air_space_setpoint <= t_discharge_sp <= 11 + t_space_sp:

   *             pass

   *         else:

   *             fail

   *     if 50 < signal_heat <= 100:

   *         if temperature_air_discharge > temperature_air_room + 3 and heating_minimum <= flow_volumetric_air_setpoint <= heating_maximum:

   *             pass

   *         else:

   *             untested

   *     end