Typical Installations; Fully Ducted System; Central Draw Point; Simplified Installation - Broan ERV90HC Installation Instructions Manual

2. TYPICAL INSTALLATIONS

Installations may vary according to the type of unit and the ports configuration (top or sides). Use the following illustrations as guidelines
to help you decide on how the unit will be installed.
All the units should be hung from the joists.
In every case, bathroom fans and a range hood should be used to exhaust stale air. Also, for homes with more than one level, we
recommend one exhaust register at the highest level.
There are 3 installation methods: Fully ducted, Central Draw Point and Simplified Installation.
NOTE: An electrical outlet has to be available within 3 feet of the unit.
2.1 F D S
ULLY UCTED YSTEM
Stale air coming from the registers located at the highest level of the house
is exhausted to the outside. Fresh air from outside is filtered and supplied
by the register located in the lowest liveable level.
Homes with more than one level require at least one exhaust register at the
highest level.
See figure at right.
2.2 C D P
ENTRAL RAW OINT
Stale air coming from the registers located at the highest level of the house
is exhausted to the outside. Fresh air from outside is filtered and supplied
to the return (plenum) or the supply duct of the forced air unit. See figure
at right.
For this type of installation, it is not essential that the forced air system
blower runs when the unit is in operation, but we recommend it.
NOTE: Home with multiple forced air systems should have one unit on
each system.
2.3 S I
IMPLIFIED NSTALLATION
Stale air is exhausted to the outside. Fresh air from outside is filtered and
supplied to the return (plenum) or the supply duct of the forced air unit. See
figure at right.
NOTE: It is possible to connect the outside fresh air duct to the supply
duct of the forced air unit. To do so, the Automatic fresh air bypass
must be used (part #: 15391). (See installation sheet included with
the Automatic fresh air bypass).
To avoid cross-contamination and achieve the highest efficiencies, the
Automatic fresh air bypass (part #15391) must be installed. If not, the
forced air system blower must always be ON.
NOTE: Home with multiple forced air systems should have one unit on
each system.
(P
RIMARILY FOR HOMES WITH RADIANT HOT WATER OR ELECTRIC BASEBOARD HEATING
(C
ONNECTION TO A FORCED AIR SYSTEM
(C
ONNECTION TO A FORCED AIR SYSTEM
VH0055
.)
VH0056
)
VH0057
- 7 -
.)