RenewAire BR Series User manual

Instruction Sheet: BR-Series, GR-Series, EV-Series (EV90/P, EV130, EV200, EV240, & EV300 Only)
Airflow Balancing Instructions
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:
uA magnehelic gauge (or manometer) or other device capable of measuring 0–1.0 in. w.g. of differential pressure.
u2 pieces of natural rubber latex tubing, 1/8" I.D., 1/16" wall thickness works best.
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.
EA (TW) FA (DH)
OA (TW)
RA (DH)
RA (TW)
OA (DH) FA (TW)
EA (DH)
(On Back of Unit)
Pressure Ports
(4) Typ.
Pressure Ports (4) Typ.
FIGURE 1.1 AIRFLOW DIAGRAM BR-SERIES
OA EA
RA FA
Pressure Ports
(4) Typ.
Pressure Ports (4) Typ.
FIGURE 1.2 AIRFLOW DIAGRAM EV130, EV200, EV240, EV300

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164133_000_SEP20
FIGURE 1.4 DAMPER INSTALLATION
FIGURE 1.3 AIRFLOW DIAGRAM EV90/P AND MANOMETER USAGE
uVerify the unit has clean filters in place.
uOpen the pressure port caps for the OA airstream and then insert the tubing into the openings about 1".
uTake a differential pressure reading for the OA airstream and compare the pressure drop to the chart on the unit
or in the IOM to obtain the CFM. Record the CFM setting for future reference.
uTake a differential pressure reading on the RA airstream and compare the pressure drop to the chart on the unit
to find the CFM of the RA airstream. Record the CFM setting for future reference.
uAfter measuring the airflow of the unit, the balancing damper may be used to balance airflow if desired. Place
the damper between the duct collar and the unit for the inlet of the airstream recording higher flow.
uSlowly move the damper further into the duct until the desired airflow is recorded. Secure the damper in place
using 1/8" tek screws (provided).
uAfter securing the damper, take additional readings as needed to verify that fan speed settings are correct.
www.renewaire.com (800) 627- 4499 [email protected]
www.renewaire.com (800) 627- 4499 [email protected]
OA
EA
RA
FA
Pressure Ports
(4) Typ.
Pressure Ports (4) Typ.
RenewAire LLC
SCALE:1:12
SIZE
DWG. NO.
A
MATERIAL:
FINISH:
SEE BILL OF MATERIAL
DO NOT SCALE DRAWING.
REMOVE ALL BURRS, BREAK
SHARP EDGES.
APPLICABLE STANDARDS: DIM.
AND TOL. ANSI Y14.5
UNLESS OTHERWISE SPECIFIED,
DIMENSIONS ARE IN INCHES.
TOLERANCES:
LINEAR
0.015
HOLE SIZE 0.005
ANGULARITY 3
SURFACE FINISH =
63 MICROINCH MINIMUM
DATE:
DRAWN BY:
KWE
5/10/12
102700_000_D12
SHEET 1 OF 1
201 Raemisch Rd.
Waunakee, WI 53597 USA
TEL: [phone]
FAX: [phone]
TOLL FREE: [phone]
TITLE:
CHECKED BY:
DATE:
-- --
EV90 PAINTED
LEVEL
DESCRIPTION OF REVISION
DATE
BY
0_D11
11/5/19
MHZ
REVISED 102730, 102725
--
SEE BILL OF MATERIAL
OA
EA
RA
FA
Pressure Ports
(4) Typ.
OA
EA
RA
FA
Pressure Ports
(4) Typ.