SHR 1504 Brochure

Selecting the Right Unit
Two simple questions to help you choose
the ideal unit for your home or building.
2. What size is your house?
If you know the total square footage of your home you can easily choose
the ideal Heat Recovery or Energy Recovery V
entilator from the product
pages in this brochure.
If you don’
t know the square footage of your home, then an alternate
way to select the unit is by room count. (Use chart below to calculate
total ventilation required.)
Always consult
your local building
codes for sizing
requirements.
Subarctic
Very Cold
Marine
Cold
Hot-Dry
Mixed-Humid
Hot-Humid
ERV*
ERV
HRV
Mixed-Dry
*No Defrost
U.S. Department of Energy
Climate Zones Map
Room No. of Rooms CFM (L/s) CFM Required
Master bedroom
x 20 cfm (10 l/s)
Basement Yes or No If yes add 20 cfm (10 l/s)
Bedrooms x10 cfm (5 l/s)
Living Room x10 cfm (5 l/s)
Other x10 cfm (5 l/s)
Kitchen x10 cfm (5 l/s)
Bathroom
x10 cfm (5 l/s)
Laundry Room
x10 cfm (5 l/s)
Utility Room x10 cfm (5 l/s)
Total Ventilation Required (add last column)
BEDROOM
BATH
LIVING
ROOM
KITCHEN
FRESH AIR TO
BEDROOMS &
LIVING ROOM
EXHAUST AIR
FROM BATHS
& KITCHEN
BEDROOM
BATH
LIVING
ROOM
EDF1
CONTROL
KITCHENKITCHEN
EXHAUST AIR
FROM BATHS
& KITCHEN
E
BEDROOM
BATH
LIVING
ROOM
&
HAUST AIR
F OM BATHS
RTS3
CONTROL
EDF1
CONTROL
RTS3
CONTROL
FRESH AIR TO
BEDROOMS &
LIVING ROOM
VIA FURNACE
DUCT
BEDROOM
BATH
LIVING
ROOM
EDF1
CONTROL
KITCHENKITCHEN
EXHAUST AIR
FROM BATHS
& KITCHEN
EXHAUST AIR
FROM HOUSE
VIA FURNACE
DUCT
BEDROOM
BATH
LIVING
ROOM
FRESH AIR TO
BEDROOMS &
LIVING ROOM
VIA FURNACE
DUCT
EXHAUST AIR
FROM BATHS
RTS3
CONTROL
E
FRESH AIR TO
BEDROOMS &
LIVING ROOM
VIA FURNACE
DUCT
KITCHEN
EXHAUST AIR
FROM HOUSE
VIA FURNACE
D
UCT
BEDROOM
BATH
LIVING
ROOM
F
RESH AIR TO
BEDROOMS &
LIVING ROOM
VIA FURNACE
DUCT
EXHAUST AIR
F
ROM BATHS
Best
Fully Dedicated
Installation
Better
Partially Dedicated
Installation
5
Installation Options
H
RVs and ERVs can be installed as stand-alone
systems that use independent ductwork or they
can be connected to the existing duct of your
f
orced air heating or cooling system.
1. In what climate zone do you live?
Climate conditions will determine whether you need a Heat Recovery
Ventilator or an Energy Recovery Ventilator.
HRVs are usually recommended for colder climates with longer heating
seasons. ERVs are used for warmer more humid climates with long
cooling seasons.
In regions where temperatures can fall below 23˚F (-5˚C) for several hours,
it is recommended that a unit with defrost capability be installed. Units with
suffix “N” on model number
do not have defrost
capability.
Good
Simplified Installation using existing
HVAC Duct and Premium Bath Fan