Filters
Open front service door to access the filters located in
both supply and exhaust air streams. Note to remove
and install filters, it may be easier to first remove
the core(s). Refer to
CORE
.
The filters are designed to stop large particles from
entering in the core. The filters are fastened in place
by a metal spring rod. To remove filters from core(s)
simply pull the rod from one end, outward until free
from core lip, and remove.
Only use
cold
water with a mild detergent to wash
the filters. Do not
wring out or
use harsh chemicals.
The time between filter service will depend
on the application the HRV has been installed in. It
can be as often as one - two months or at the
very least, cleaned every six months.
Condensate Drains
The condensate drain consists of one drain pan, which
may collect water after the HRV initiates a defrost
cycle, and a drain line to remove the condensate.
Maintenance on this portion of the system should be
done as often as possible and should not exceed six
months. Note bacterial growth in standing water is a
major concern to healthy indoor air quality, and
should be avoided whenever possible.
To clean these components, open the front service
door and flush the pans with water. Ensure that the
pans drain completely and in a reasonable amount of
time. Note if the water does not drain right away,
check for blockage in the drain line, also check that
the drain line has a good slope to it. (1/8 - 1/4” per
foot)
The drain line itself should have a “P” trap in it
below the HRV which is to be filled with water to
prevent odors or gases from entering back into the
unit.
Duct Work
It is a good idea to inspect ducting, outside
weatherhoods (wall caps), and grilles for blockage
and dirt buildup, at least every six months.
Outside weatherhoods should be protected by a bird
screen which can plug up with debris. Also, it is a
good idea to visually confirm that the fresh air
supply is free from any sources of contamination,
such as other vented combustion equipment added
after the fact.
Damper Motor
The damper motor, (if applicable) is a self contained
motor and does not require service. The damper door
attached to the motor could use a little lithium
grease on the shaft opposite the motor, where it
enters its holder, once every two - three years.
General Maintenance
As a final step in a routine maintenance schedule, it
is a good idea to confirm operation of the system,
checking speed control functions and remote control
operation, if applicable.
Wipe the inside of the cabinet to remove dust and cob
webs as needed.
It is a good idea to keep a service/maintenance log
of the unit.
Service and Maintenance
25
