User Guide

6
STALE AIR EXHAUST DUCTWORK:
• Install registers in areas where contaminants and humidity are
produced: Kitchen, bathrooms, laundry room, etc.
• Install registers on an interior wall, 6 to 12 inches away from the
ceiling OR in the ceiling.
• Install the kitchen register at least 4 feet away from the range.
• Bathroom fans and range hoods can be used to better exhaust stale
air.
• Homes with more than one level require at least one exhaust register
at the highest level.
FRESH AIR DISTRIBUTION DUCTWORK:
• Install registers in bedrooms, dining room, living room and basement.
• Install registers in the ceiling OR high on the walls with the airflow
directed towards the ceiling.
• If a register must be installed in the floor, direct the air flow up the
wall.
2.2.1 FULLY DUCTED SYSTEM
2.2 INSTALLING THE DUCTWORK AND THE REGISTERS
Never install a stale air exhaust register in a room where there is a combustion device, such as a gas furnace, a
gas water heater or a fireplace.
WARNING
!
VH0118
DO NOT CONNECT TO THE SUPPLY SIDE
OF THE FURNACE/AHU
VJ0136
STALE AIR EXHAUST DUCTWORK:
Same as for Fully Ducted System, described on point 2.2.1.
FRESH AIR DISTRIBUTION:
• Connect the fresh air distribution duct of the unit to the furnace/AHU
return duct at least 10 feet away from the furnace/AHU (A+B)*.
* This 10-ft. distance applies only in areas where the outside temperature
falls below the freezing point (32°F).
NOTE: The furnace/AHU blower operation can be synchronized with
the unit (see Section 3.3). It is recommended, but not essential that the
furnace/AHU blower runs when the unit is in operation.
2.2.2 EXHAUST DUCTED SYSTEM
When performing duct connection to the furnace/AHU, installation must be done in accordance with all applicable
codes and standards. Please refer to your local building code.
WARNING
!
A+B= MIN. 10’
VH0119
For this type of installation, you must perform steps in
section 2.2.4 to make sure that the pressure in the return
duct of the furnace/AHU allows the unit to operate properly.
CAUTION