Update default CFIS fan power.

NREL · Dec 19, 2023 · cfc7218 · cfc7218
1 parent 6f74700
commit cfc7218
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/rulesets/resources/301ruleset.rb b/rulesets/resources/301ruleset.rb
@@ -1575,7 +1575,7 @@ def self.set_systems_mechanical_ventilation_rated(orig_bldg, new_bldg)
         end
       else
         # Fan power defaulted
-        fan_w_per_cfm = Airflow.get_default_mech_vent_fan_power(orig_vent_fan)
+        fan_w_per_cfm = Airflow.get_default_mech_vent_fan_power(orig_vent_fan, @eri_version)
         if orig_vent_fan.flow_rate_not_tested && orig_vent_fan.fan_type == HPXML::MechVentTypeCFIS
           # For in-unit CFIS systems, the cfm used to determine fan watts shall be the larger of
           # 400 cfm per 12 kBtu/h cooling capacity or 240 cfm per 12 kBtu/h heating capacity

diff --git a/rulesets/tests/test_ventilation.rb b/rulesets/tests/test_ventilation.rb
@@ -543,7 +543,7 @@ def test_mech_vent_cfis_unmeasured_airflow_rate_and_defaulted_fan_power
       if [Constants.CalcTypeERIReferenceHome, Constants.CalcTypeCO2eReferenceHome].include? calc_type
         _check_mech_vent(hpxml_bldg, [{ fantype: HPXML::MechVentTypeBalanced, flowrate: 27.0, hours: 24, power: 0.2 }])
       elsif [Constants.CalcTypeERIRatedHome].include? calc_type
-        _check_mech_vent(hpxml_bldg, [{ fantype: HPXML::MechVentTypeCFIS, flowrate: 45.0, hours: 8, power: 400.0, cfis_airflow_fraction: 1.0,
+        _check_mech_vent(hpxml_bldg, [{ fantype: HPXML::MechVentTypeCFIS, flowrate: 45.0, hours: 8, power: 464.0, cfis_airflow_fraction: 1.0,
                                         cfis_mode: HPXML::CFISModeAirHandler }])
       elsif [Constants.CalcTypeERIIndexAdjustmentDesign].include? calc_type
         _check_mech_vent(hpxml_bldg, [{ fantype: HPXML::MechVentTypeBalanced, flowrate: 60.1, hours: 24, power: 42.0 }])