Carrier 58MVP User Manual
Page 43
Tools Needed:
1)
Pitot Tube
1)
Incline Manometer/Magnahelic
Both examples are correct. Example 1 ESP readings were taken as
laid out in Static Pressure Reading Location Diagrams. Example 2
readings are taken as described. The coil and filter static pressure
drops were taken from the manufacturer’s Product Data Sheets
with the assumption that we are trying to deliver 2000 CFM (this
will vary).
NOTE:
By plotting total ESP of 0.95 in. wc on the air delivery
curve of a 100,000 Btuh input furnace, a Fault Code 44 would
flash. (See Example Air Delivery Curve.)
Horizontal Right and Left Airflow Total Static Pressure Reading Locations
A95092
Attic — Horizontal Application
COMBUSTION–AIR PIPE
ELECTRONIC
AIR CLEANER
FURNACE
CONDENSATE
DRAIN
REFRIGERATION
PIPING
AIR CONDITIONING
COIL
AIRFLOW
VENT PIPE
SUPPLY STATIC
INCLINE MANOMETER
RETURN STATIC
INCLINE MANOMETER
Example 1
Return ESP after filter
0.40 in. wc
Supply ESP before coil
0.55 in. wc
Total ESP
0.95 in. wc
Example 2
Return ESP before filter
0.15 in. wc
Filter Static Drop @ 2000 CFM
0.25 in. wc
Supply ESP after coil
0.30 in. wc
Coil Static Drop Wet
0.25 in. wc
Total ESP
0.95 in. wc
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