diff --git a/merged_schema/HPXMLMerged.xsd b/merged_schema/HPXMLMerged.xsd
index 76e7c0cb..4500708e 100644
--- a/merged_schema/HPXMLMerged.xsd
+++ b/merged_schema/HPXMLMerged.xsd
@@ -3674,7 +3674,7 @@
[deg F] Temperature below which the compressor is disabled, often to prevent damage or occupant comfort issues. The default is the manufacturer's minimum operating temperature, but the value may be set higher. For a duel-fuel heat pump, use the BackupHeatingSwitchoverTemperature element.
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+
Whether the heat pump backup is integrated into the unit (describe in BackupSystemFuel, BackupAnnualHeatingEfficiency, BackupHeatingCapacity), or a
@@ -3756,7 +3756,7 @@
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@@ -3782,7 +3782,7 @@
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[gpm] Water flow rate through the geothermal loop
@@ -3791,17 +3791,17 @@
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[ft] Length of each borehole (vertical) or trench (horizontal)
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[ft] Distance between bores/trenches
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[in]
@@ -3818,7 +3818,7 @@
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[Btu/hr-ft-F]
@@ -3831,17 +3831,17 @@
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[Btu/hr-ft-F]
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[in]
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[in] Measured as center-to-center (not edge-to-edge) distance between two branches of a vertical U-tube
@@ -4098,7 +4098,7 @@
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[Btu/hr-ft-F]
@@ -5374,19 +5374,19 @@
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[sq.in.] The Effective Leakage Area is defined as the area of a special nozzle-shaped hole (similar to the inlet of a blower door fan) that would leak the same
amount of air as the building does at a pressure of 4 Pascals.
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+
[sq. ft.] The volume of the building that is applicable to the air infiltration measurement test. The volume can be defined as the conditioned building volume
plus the volume of crawlspaces, attics, and/or basements that are connected to the building's conditioned space via open doors or hatches.
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+
[ft] Vertical distance between lowest and highest above-grade points within the pressure boundary, per ASHRAE 62.2.
@@ -8414,7 +8414,9 @@
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@@ -9637,6 +9639,19 @@
+
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+
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A fraction that has to be between 0 and 1 inclusive
diff --git a/schemas/HPXMLBaseElements.xsd b/schemas/HPXMLBaseElements.xsd
index 83abdb05..1d51f449 100644
--- a/schemas/HPXMLBaseElements.xsd
+++ b/schemas/HPXMLBaseElements.xsd
@@ -3660,7 +3660,7 @@
[deg F] Temperature below which the compressor is disabled, often to prevent damage or occupant comfort issues. The default is the manufacturer's minimum operating temperature, but the value may be set higher. For a duel-fuel heat pump, use the BackupHeatingSwitchoverTemperature element.
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+
Whether the heat pump backup is integrated into the unit (describe in BackupSystemFuel, BackupAnnualHeatingEfficiency, BackupHeatingCapacity), or a
@@ -3742,7 +3742,7 @@
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+
@@ -3768,7 +3768,7 @@
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[gpm] Water flow rate through the geothermal loop
@@ -3777,17 +3777,17 @@
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+
[ft] Length of each borehole (vertical) or trench (horizontal)
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+
[ft] Distance between bores/trenches
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+
[in]
@@ -3804,7 +3804,7 @@
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+
[Btu/hr-ft-F]
@@ -3817,17 +3817,17 @@
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[Btu/hr-ft-F]
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[in]
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[in] Measured as center-to-center (not edge-to-edge) distance between two branches of a vertical U-tube
@@ -4084,7 +4084,7 @@
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[Btu/hr-ft-F]
@@ -5360,19 +5360,19 @@
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[sq.in.] The Effective Leakage Area is defined as the area of a special nozzle-shaped hole (similar to the inlet of a blower door fan) that would leak the same
amount of air as the building does at a pressure of 4 Pascals.
-
+
[sq. ft.] The volume of the building that is applicable to the air infiltration measurement test. The volume can be defined as the conditioned building volume
plus the volume of crawlspaces, attics, and/or basements that are connected to the building's conditioned space via open doors or hatches.
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+
[ft] Vertical distance between lowest and highest above-grade points within the pressure boundary, per ASHRAE 62.2.
diff --git a/schemas/HPXMLDataTypes.xsd b/schemas/HPXMLDataTypes.xsd
index 38dc9a75..808d0fd0 100644
--- a/schemas/HPXMLDataTypes.xsd
+++ b/schemas/HPXMLDataTypes.xsd
@@ -2143,7 +2143,9 @@
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+
+
@@ -3366,6 +3368,19 @@
+
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+
+
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A fraction that has to be between 0 and 1 inclusive