Balancing The Airflows - Lifebreath Pure Performance Rnc Serie Guide D'installation

Dimensional Drawing for 205 Model
Stale
Air To
Outside
Recirculating
Defrost
Damper
Removable
Heat Recovery
Core
Motorized
Impeller
Condensate Drain

Balancing the Airflows

Balan cing the airflows is critical to ensuring that the amount of air introduced from the outside of
the building equals the amount of air exhausted to the outside of the building. If these two airflows
are not properly balanced, the following issues may occur:
 A positive or negative pressure in the house
 HRV not operate at its maximum efficiency
 The unit not defrost properly
Airflow Measuring Gauge
A digital manometer is a suitable instrument for the balancing of
airflows.
99-BAL-KIT Airflow Balancing Kit
Kit includes a digital manometer, pitot tube, hose and tool bag.
Attention
Continuous, excessive, positive pressure may drive moist indoor air into the external walls of the building. Once

inside the external walls, moist air may condense (in cold weather) and degrade structural components or cause
locks to freeze.
Continuous, excessive, negative pressure may have several undesirable effects. In some geographic locations, soil

gases such as methane and radon gas may be drawn into the home through basement or ground contact areas,
and may also cause the backdrafting of vented combustion equipment.
Fresh Stale
Air From Air From
Inside
Outside
Filter
33 5/8 in (854 mm)
Front View
Fresh
Air To
Note: Front clearance of 25 in (635 mm) is
Inside
recommended for servicing unit. All ducts
use 6 in (150 mm) oval collars, balancing
dampers are located on all collars.
Top View
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Figure A
DICITAL IANDIETER
Digital Manometer
20