Measuring Airflow - S&P TRC1200 Installation, Operation & Maintenance Manual

MEASURING AIRFLOW

EQUIPMENT REQUIRED
• A magnehelic gauge or other device capable of
measuring 0 to 1.5 in. water of differential pressure.
• 2 pieces of natural rubber latex tubing, 1/8" ID, 1/16" wall works the best.
CROSS CORE STATIC PRESSURE MEASUREMENT INSTRUCTIONS
The individual differential static pressures (DSP) can be measured using the installed pressure ports
located in the front of the units core access doors.
To read SCFM of Supply Air (SA) install the "high" pressure side (+) of your measuring device to the
Outside Air (OA) port and the "low" pressure side (-) to the Supply Air (SA) port.
• To read SCFM of Room Air (RA) install the "high"
pressure side (+) of your measuring device to the Room Air (RA) port and the "low" pressure side
(-) to the Exhaust Air (EA) port.
• Use the reading displayed on your measurement device to cross reference the CFM output using
the conversion chart.
EA
FA
RA
DIFFERENTIAL STATIC ACROSS CORE DSP VS. CFM
DSP 0.15
FA
Supply Air (SA) CFM 380
Room Air (RA) CFM 320
®
Pressure Ports (4)
Pressure Ports (4)
FIGURE F3 AIRFLOW DIAGRAM TRC1200
0.20 0.25 0.30 0.35 0.40
500 620 740 860 980
440 565 695 825 960
TRC1200
OA
RA
OA
0.45 0.5 0.55 0.60 0.65
EA
1095 1215 1330 1450 1565
1095 1235 1375 1515
SOLERPALAU-USA.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL
OPERATION
ERV
NOTE: These ports
have been carefully
located on the unit
as to give you the
most accurate airflow
measurement. Do not relocate
pressure ports.
NOTE: Pressure drop
of clean 2" MERV-8
Filters is included
in the Unit Performance
Ratings Table.
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