Ductwork - Nu-Air NU0103 Operating, Maintaining & Installing

1. Standard Issue Items
The HRV comes equipped with:
Filters
Heat/Energy Recovery Core
Drain Kit
Anti-Vibration straps (NU0103, NU0305)
Anti-vibration Springs, chain & hanging brackets
(NU0406)
2. Other Basic Needs
Control Package
Outside Hoods (2)
Screws
Balancing dampers
3.3

Ductwork

Ductwork
Duct runs should be straight with minimum bends
and elbows. Joints should be tight fitting and
sealed with high velocity, fiber reinforced duct
sealant or good quality duct tape.
RECOMMENDATION: An engineer or other
qualified person should design the duct system
Ducting must be supported according to the
designers' specified hanger system and intervals.
Ducting from the Weather Hoods
Between the weather hoods and the H/ERV it is recommended to use rigid rectangular ducting equal to or
larger than the collar size of the machine. These ducts should be wrapped with an insulating duct wrap.
The minimum RSI value of insulation should equal that of the local building codes.
Galvanized Duct
Duct Fittings
Diffusers
Air flow measuring device for balancing
Flexible Duct Connector
Duct Sealer or Tape
Duct Hanger
HRAI-recommended hood location for residential applications.