Fresh Air - Bryant HRVBBLHA Installation Instructions Manual

secure ducts. This procedure should be repeated to ensure
unit is balanced properly.
Note: The flow collar directional arrow (on flow collar) must
be oriented in the airflow direction of unit.
Fig. 17 --- HRVBBLHA and HRVBBSVU Cross Flow
STALE AIR
TO OUTSIDE

FRESH AIR

FROM OUTSIDE
Fig. 18 --- HRVBBLHA Airflow During Air Exchange
MAX
MIN
ZEROING SCREW
Fig. 16 --- Magnehelic Gage
A05352
FRESH AIR
TO BUILDING
STALE AIR
FROM BUILDING
A05353
Note: Some field modification may be required to ensure
proper temporary installation of flow collar during balancing
when insulated flexible duct is used.
MAX
MIN
AIRFLOW
DIRECTION
CONVERSION
CHART
STALE AIR
TO OUTSIDE
o
2 C
o
36 F
FRESH AIR
TO BUILDING
Fig. 19 --- HRVBBLVU Counterflow
Fig. 20 --- HRVBBLHA Airflow During Defrost
11
FLOW
COLLAR
FRESH AIR
FROM OUTSIDE
o
0 C
o
32 F
STALE AIR
FROM BUILDING
o
22 C
o
72 F
o
20 C
o
68 F
FILTERED AIR
TO BUILDING
STALE AIR
FROM BUILDING
A98400
A98404
A05354