Nu-Air Ventilation Systems Inc. - HRV Operating &Installation Manual
Revised April 27, 2012
Page 9 of 17
RECOMMENDATION: An engineer or other qualified person should design the duct
system.
Ducting must be supported according to the designer's specified hanger system and intervals.
6.9
Drain Connections
Access to a drain is required to handle the HRV condensate. Care should be taken to run the
condensate tube where it will not freeze.
For best results,
Nu-Air
recommends the following steps be followed when installing drain kits.
1.
Apply the O-ring supplied to the flange of each drain spout (A)
2.
Insert the drain spouts through the holes in the drain pan (B)
3.
Use the speed nut to tightly secure the drain spout
4.
Cut two lengths of drain hose (E) long enough to avoid kinking
5.
Attach the hose to the drain spout by sliding it over the spout until it is tight to the bottom
of the speed nut. Repeat for the other side
6.
Secure the hose to the spout with the plastic tie wraps (D)
7.
Install the fitting (F) as shown in the drawing below
8.
Attach the free end of the hose to the left fitting. Repeat for the other side
9.
Use the remaining hose to form a "P" trap and terminate at the top of the tee
10.
Pour approximately one cup of water into the drain assembly to form an air seal. This
prevents gasses from being drawn into the HRV
