Airloop HVAC

  • userdata_airloop_hvac.csv (988 B)

    • Introduction

    The userdata_airloop_hvac.csv contains compliance data for airloop HVAC compliance calculation. It allows the user to specify pressure drop adjustments, air side economizer design considerations, exhaust air energy recovery design considerations as well as dcv exceptions.

    It consists of the following data fields:

    An example of sample data is shown here:

    name has_fan_ power_credit _fully_ducted has_fan_power_ credit_return_or_ exhaust_flow_control fan_power_credit_ exhaust_treatment has_fan_power_ credit_filtration_m9to12 has_fan_power_ credit_filtration_m13to15 clean_filter_pressure_ drop_for_fan_power_ credit_filtration_m16plus
    Perimeter_ZN _1 ZN PSZ-AC-2 0 0 0 0 0 yes
    fan_power_credit_ gas_phase_cleaners fan_power_credit_ biosafety fan_power_credit_ other_than_coil_ runaround fan_power_credit_ evaporative_humidifier_or_ cooler has_fan_power_ credit_sound_ attenuation has_fan_power_ credit_exhaust_ serving_fume_hoods
    0 0 0 0 0 0
    has_fan_power_ credit_lab_or_ vivarium_highrise_ vertical_duct economizer_exception_for_ gas_phase_air_cleaning economizer_exception_for_ open_refrigerated_cases exhaust_energy_recovery_ exception_for_toxic_ fumes_etc exhaust_energy_recovery_ exception_for_type1_ kitchen_hoods exhaust_energy_recovery_ exception_for_type_ distributed_exhaust exhaust_energy_recovery_ exception_for_dehumidifcation_ with_series_cooling_ recovery dcv_exception_ airloop
    0 false false false false false false false

    Refer to the section below for more information about each field.

    Data Fields Details

    Here is a detailed explanation of what each data field requires.

    name

    Name of the Air Loop HVAC object in the model.

    Pressure-drop adjustments

    The following fields can be used to indicate what pressure-drop adjustment devices are present in each airloop HVAC object in the proposed model. Each field corresponds to one of the pressure-drop adjustment categories from Table 6.5.3.1-2.

    • has_fan_power_credit_fully_ducted
      Set this field to the number of return or exhaust systems required by code or accreditation standards to be fully ducted, or systems required to maintain air pressure differentials between adjacent rooms that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    • has_fan_power_credit_return_or_exhaust_flow_control
      Set this field to the number of return and/or exhaust airflow control devices that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    • fan_power_credit_exhaust_treatment
      Set this field to the sum of the pressure-drop (calculated at fan system design conditions) of all exhaust filters, scrubbers, or other exhaust treatment devices that the airloop HVAC object includes. If it doesn’t apply, leave this field blank or set to 0.
    • has_fan_power_credit_filtration_m9to12
      Set this field to the number of MERV 9 through 12 filters that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    • has_fan_power_credit_filtration_m13to15
      Set this field to the number of MERV 13 through 15 filters that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    • clean_filter_pressure_drop_for_fan_power_credit_filtration_m16plus
      Set this field to the sum of the pressure-drop (calculated at 2 times the clean filter pressure-drop at fan system design conditions) of all MERV 16+ filters and electronically enhanced filters that the airloop HVAC object includes. If it doesn’t apply, leave this field blank or set to 0.
    • fan_power_credit_gas_phase_cleaners
      Set this field to the sum of carbon and other gas-phase air cleaners’ pressure-drop (at the fan system design conditions) that the airloop HVAC object includes. If it doesn’t apply, leave this field blank or set to 0.
    • fan_power_credit_biosafety
      Set this field to the sum of the pressure-drop (calculated at fan system design conditions) of biosafety cabinets that the airloop HVAC object includes. If it doesn’t apply, leave this field blank or set to 0.
    • fan_power_credit_other_than_coil_runaround
      Set this field to the number of energy recovery devices other than coil runaround loop that the airloop HVAC object includes. If it doesn’t apply, leave this field blank or set to 0.
    • has_fan_power_credit_coil_runaround
      Set this field to the number of runaround loop that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    • fan_power_credit_evaporative_humidifier_or_cooler
      Set this field to the sum of the pressure-drop (calculated at fan system design conditions) of the evaporative humidifier or cooler that the airloop HVAC object includes. If it doesn’t apply, leave this field blank or set to 0.
    • has_fan_power_credit_sound_attenuation
      Set this field to the number of sound attenuation sections of fans serving spaces with design background noise goals below NC35 that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    • has_fan_power_credit_exhaust_serving_fume_hoods
      Set this field to the number of exhaust systems serving fume hoods that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    • has_fan_power_credit_lab_or_vivarium_highrise_vertical_duct
      Set this field to the number of laboratory and vivarium exhaust systems in high-rise buildings that the airloop HVAC object includes. If the number is 1, the field can also be set to yes. If it doesn’t apply, leave this field blank or set to 0.
    Air-side economizer

    The following fields can be used to indicate special design consideration regarding air-side economizer that cannot be inferred from the proposed model. These are used by the software to determine if an airloop HVAC object complies with the certain exceptions of Section G3.1.2.6.

    • economizer_exception_for_gas_phase_air_cleaning
      Set this field to true if the airloop HVAC object include gas-phase air cleaning to meet the requirements of Standard 62.1, Section 6.1.2. If it doesn’t apply leave this field blank or set to false.
    • economizer_exception_for_open_refrigerated_cases
      Set this field to true where the use of outdoor air for cooling by the airloop HVAC object would affect supermarket open refrigerated case-work systems. If it doesn’t apply leave this field blank or set to false.
    Exhaust air energy recovery

    The following fields can be used to indicate special design consideration regarding air energy recovery that cannot be inferred from the proposed model. These are used by the software to determine if an airloop HVAC object complies with the certain exceptions of Section G3.1.2.10.

    • exhaust_energy_recovery_exception_for_toxic_fumes_etc
      Set this field to true if the airloop HVAC object is exhausting toxic, flammable, or corrosive fumes or paint or dust. If it doesn’t apply leave this field blank or set to false.
    • exhaust_energy_recovery_exception_for_type1_kitchen_hoods
      Set this field to true if the airloop HVAC object includes commercial kitchen hoods (grease) classified as Type 1 by NFPA 96. If it doesn’t apply leave this field blank or set to false.
    • exhaust_energy_recovery_exception_for_type_distributed_exhaust
      Set this field to true when the airloop HVAC object’s largest exhaust source is less than 75% of the design outdoor airflow. If it doesn’t apply leave this field blank or set to false.
    • exhaust_energy_recovery_exception_for_dehumidifcation_with_series_cooling_recovery
      Set this field to true when the airloop HVAC object is requiring dehumidification that employ energy recovery in series with the cooling coil. If it doesn’t apply leave this field blank or set to false.
    dcv_exception_airloop

    Set this field to true if any of the exceptions under the section 6.4.3.8 applies. If it doesn’t apply leave this field blank or set to false.