Method 10: Indoor Coil Pressure Drop

Method 10: Indoor Coil Pressure Drop

Indoor Coil
Pressure Drop
Rating Comments
Overall Value Cost-effective method, provides good measurement on new clean systems with proper OEM chart. Is not accurate if system is dirty.
Recognized by Standard 310 No Not recognized by ANSI/ACCA/RESNET.
Residential
Accuracy
Fair accuracy if a new systems with right OEM table.
Consistency Inconsistent readings if condition of equipment is not clean (matching the OEM table).
Equipment
Cost
$ Cost-effective, can start very low (<$100, to about $600).
Time (Min) 5 to 10 Process is straightforward and quick.


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