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Rule19-22.md

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Section 19 - Rule 19-22

Schema Version: 0.0.23
Mandatory Rule: True
Rule ID: 19-22
Rule Description: Baseline systems modeled with exhaust air energy recovery shall allow bypass or control heat recovery system to permit air economizer operation.
Rule Assertion: Options are Pass/Fail/NOT_APPLICABLE
Appendix G Section: G3.1.2.10
90.1 Section Reference: None

Data Lookup: None

Evaluation Context: Each HeatingVentilatingAirConditioningSystem

Applicability Checks:

  1. HVAC systems modeled with exhaust air energy recovery in the baseline.

Function Calls: None

Rule Logic:

Applicability Check 1

  • For each hvac system in the B_RMI: for hvac in B_RMI...HeatingVentilatingAirConditioningSystem:
    • Create fan system object: fan_sys_b = hvac.fan_system
    • Check if there are any energy recovery objects associated with the fan system object, if not then NOT_APPLICABLE: if fan_sys_b.air_energy_recovery != Null:

      • Get the energy recovery operation: ER_operation = fan_sys_b.air_energy_recovery.energy_recovery_operation

      • Rule Assertion:

      • Case 1: If energy recovery operation is when minimum OA then pass: if ER_operation == "WHEN_MINIMUM_OUTSIDE_AIR": outcome = "PASS"

      • Case 2: Else, fail: Else: outcome = "Fail"

Notes/Questions:

  1. Updated the Rule ID from 19-25 to 19-22 on 04/17/2023

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