Airloop HVAC DOAS

Introduction

The userdata_airloop_hvac_doas.csv contains compliance data for airloop HVAC DOAS compliance calculation. It allows users to specify the pressure drop adjustments for the DOAS airloop.

The .csv 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 fan_power_credit_ gas_phase_cleaners fan_power_credit_ biosafety
AHU_DOAS 0 0 0 0 yes 0 0 0
fan_power_credit_ other_than_coil_ runaround has_fan_power_credit_coil_runaround fan_power_credit_ evaporative_humidifier_or_ cooler has_fan_power_ credit_sound_ attenuation has_fan_power_ credit_exhaust_ serving_fume_hoods has_fan_power_ credit_lab_or_vivarium_ highrise_vertical_duct
0 0 0 0 0 0

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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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 DOAS 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.