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2. TYPICAL INSTALLATIONS (CONT’D)
The ERV units are created to meet specific requirements related to geographical locations. Take a look at the map below; the shaded
area shows the limits where the ERV unit can be installed. However, there is no geographical limitation for installing an HRV unit.
NOTE:The ERV unit is designed to assist in the management of humidity introduced into the home.
During cooling season, in extreme humidity conditions, the use of additional dehumidification unit may be required to quickly
remove all excess moisture. During heating season, in extreme dryness conditions, the use of a humidifier may be required if
the indoor air is still too dry.
ANCHORAGE
WHITEHORSE
JUNEAU
HAY RIVER
YELLOWKNIFE
Prince Rupert
GRANDE PRAIRIE
FORT MCMURRAY
FORT SMITH
EDMONTON
PRINCE ALBERT
SASKATOON
JASPER
KAMLOOPS
CALGARY
PENTICTON
REGINA
LETHBRIDGE
HELENA
VICTORIA
OLYMPIA
WINNIPEG
SALEM
BOISE
BISMARCK
SALT LAKE CITY
SAULT STE MARIE
ST. PAUL
DES MOINES
MADISON
TIMMINS
HARRISBURG
SACRAMENTO
DENVER
TOPEKA
SUDBURY
TORONTO
DETROIT
INDIANAPOLIS
SANTA FE
SPRINGFIELD
OKLAHOMA CITY
PHOENIX
COLUMBUS
NASHVILLE
ATLANTA
BATON ROUGE
AUSTIN
COLUMBIA
RALEIGH
WASHINGTON
OTTAWA
NORTH BAY
VAL-DOR
CHICOUTIMI
HARTFORD
CHIBOUGAMAU
MONTRÉAL
QUEBEC
BOSTON
GOOSE BAY
LABRADOR CITY
SEPT-ILES
MATANE
GASPÉ
BATHURST
ST-JOHN
HALIFAX
CHARLOTTETOWN
ST JOHN’S
RENO
VN0006
2.4 INSTALLATION FOR ERV UNITS ONLY
2.4.1 GEOGRAPHICAL LOCATION
All 3 types of installations can be used in the attic (Fully ducted system, Central Draw Point or Simplified). The example shown below is
a Simplified installation (connection to a forced air system).
Stale air is exhausted to the outside. Fresh air from outside is filtered
and supplied to the return (plenum) of the forced air unit
.
See figure at right.
To avoid cross-contamination and achieve the highest efficiencies, the
forced air system blower must always be ON.
NOTE: Home with multiple forced air systems should have 1 unit on
each system.
Due to the potential temperature difference between the attic and the rest of the house, all unit ducts must be insulated.
CAUTION
The attic temperature must always be above 0°C (32°F).
CAUTION
2.4.2 ERV UNITS ATTIC INSTALLATION
VH0058
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