HE3XINV Due to continuing product development, specifications are subject to change without notice. © 2012 RenewAire LLC
134772_006 HE3XINVMan_Jan12.indd Revised 01/2012 www.renewaire.com
Page 6
OA
RA
EA
FA
Pressure Points (4)
HE3XINV
Differential Static Across Core DSP vs. CFM
HE3XINV
DSP 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90
1.0
Fresh Air
(FA)
CFM 760 1140 1520 1910 2290 2670 3050 3430 3810
Room Air
(RA)
CFM 750 1120 1490 1860 2240 2610 2980 3350 3730
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. NOTE: Be sure to remove cap from pressure
port before inserting tubing. Insure tubing is well seated
in pressure ports. NOTE: The tubing should extend in the
pressure port approx. 1 inch.
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. NOTE: These ports
have been carefully located on the unit as to give you the
most accurate airflow measurement. NOTE: 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.
•
Use the reading displayed on your measurement device to
cross reference the CFM output using the conversion chart.
NOTE: Be sure to replace cap into pressure port when air
flow measuring is completed.
HE3XINV Electrical Specifications
NOTE: Proper Wiring Size Selection and Wiring Installation
are the Responsibility of the Electrical Contractor.
Blower & contactor voltages are specified with order and set at
factory.
Brake Horsepower at various Blower RPM, Motor Rating, and ESP
combinations are available on Spec Sheet or from factory.
Electrical Options and Ratings are identified on the Unit Label
(located near electrical box). Find the complete Unit Model
Number in the lower left corner of the Unit Label.
Danger of Electrical Shock when servicing an installed
unit.
ALWAYS DISCONNECT POWER SOURCE BEFORE
SERVICING! More than one disconnect switch may be
required.
Proper Wiring Size Selection and Wiring Installation
are the Responsibility of the Electrical Contractor.
The proper operating airflow range for this model is 750 -
3300 CFM.
