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Idiomas disponibles
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Cross Core Static Pressure Measurement Instructions
The individual differential static pressures (DP) are measured
using the installed pressure ports located in the front of the
units core access doors.
NOTE: These ports are carefully located on the unit to give the
most accurate airflow measurement. Do not relocate pressure
ports.
• To read SCFM of Fresh Air (FA) install the "high" pressure
side (+) of your measuring device to the Outside Air (OA)
port and the "low" pressure side (-) to the Fresh Air (FA)
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.
• If gauge drops below zero, reverse tubing connections.
• Use the reading displayed on your measurement device to
cross reference the CFM output using the conversion chart.
• Make sure clean filters are installed before balancing air
flow. Dirty or clogged filters reduce airflow through the
unit.
OA
TR130_200_300
132100_003
RA
Pressure Ports
(4) Typ.
DIFFERENTIAL STATIC ACROSS CORE DSP VS. CFM
Fresh Air (FA)
Room Air (RA)
DIFFERENTIAL STATIC ACROSS CORE DSP VS. CFM
Fresh Air (FA)
Room Air (RA)
Due to continuing product development, specifications are subject to change without notice.
NOTE: Be sure to replace cap into pressure port when airflow
measuring is completed.
NOTE: For best performance the airflow rate for both the Fresh
Air and the Exhaust Air should be roughly equal ("balanced").
In some facilities a slight positive or negative pressure in
the building is desired. TR energy recovery ventilators can
generally operate with a flow imbalance of up to 20% without
significant loss in energy recovery efficiency.
The proper airflow range for the models are:
TR130: 50-140 CFM
TR200: 100-200 CFM
TR300: 150-300CFM
DSP
0.10
0.20
0.30
CFM
28
57
85
CFM
28
57
85
DSP
0.10
0.20
0.30
0.40
CFM
59
119+
178
238
CFM
59
119+
178
238
EA
FA
0.40
0.50
113
142
113
142
0.50
.60
297
356
297
356
Revised 9/2018
© 2018 S&P
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