RenewAire BR-Series Quick Start Manual

Instruction Sheet: BR-Series, GR-Series, EV-Series (EV90/P, EV130, EV200, EV240, & EV300 Only)

BALANCING

Balancing airflow is done by measuring both Outdoor Airflow and Return Airflow, and using a damper to reduce to
the flow of the higher air stream.
Equipment required for testing airflows:
A magnehelic gauge (or manometer) or other device capable of measuring 0–1.0 in. w.g. of differential pressure.
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2 pieces of natural rubber latex tubing, 1/8" I.D., 1/16" wall thickness works best.
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Manometers are relatively inexpensive devices that are readily available from online retailers. Accuracy within
the range of 0–1.0 in. w.g. is the critical measure. Water manometers generally have graduations of 0.1" that are
difficult to accurately determine. For all manometers, there are two plastic tubes that connect at the manometer
and then the other ends go to pressure ports on the unit.
Individual differential static pressures (DP) are measured ACROSS the core, using the installed pressure ports
located on the removable door.
Airflow Balancing Instructions
RA (TW)
OA (DH)
FIGURE 1.1 AIRFLOW DIAGRAM BR-SERIES
OA
RA
Pressure Ports
Pressure Ports (4) Typ.
(4) Typ.
FIGURE 1.2 AIRFLOW DIAGRAM EV130, EV200, EV240, EV300
(On Back of Unit)
Pressure Ports (4) Typ. Pressure Ports
(4) Typ.
FA (TW)
EA (DH)
EA
FA