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1. Inspect Exterior Hoods at least once a month.
Make sure exhaust and fresh air supply hoods are not
blocked or restricted by leaves, grass, or snow. In winter, it
is especially important to make sure snow is not blocking
the hoods or that frost has not built up on the wire mesh
(bird screen).
WARNING: Blockage of hoods may cause an imbalance.
2. Clean Air Filters - Twice a Year
The standard filters equipped with your HRV are remov-
able and washable.
a) simply open access door and slide core out
b)remove filters
c) rinse with water or a combination of mild soap and
water. Do not clean in the dishwasher
d)to re-assemble, place clean filter(s) (wet or dry) back
into their positions against the core and return clips to
their original position
e) slide core back into its original position
3. Clean Core - Twice a Year
a) open access door
b) rotate keeper clips and carefully grip ends of core and
pull evenly outward.
-core may be snug, but will slide out of the channel
c) once removed from the cabinet remove filters
d) wash core in warm soapy water
(do not use dishwasher)
e) install clean core
f) install the clean filters
Note: Core installation label on the outer end of the core.
To install the clean core:
a)first mount the bottom flange of the core guide into the
bottom H channel approximately 1/4” (6mm)
b)mount the left or right side flange of the core guide
approximately 1/4” (6mm) followed by the other side
c) mount the top flange of the core guide into the top H
channel approximately 1/4” (6mm)
d)with all four corners in place and the core straight and
even, push hard in the center of the core until the core
stops on the back of the cabinet
e) rotate core clips to lock core in place
NOTE: Core will appear to stick out from cabinet approxi-
mately 1/8” (3mm). This is designed this way so that the
access door will fit tight against the core.
4. Motors - Maintenance Free
5. Drain (condensate) Line - Clean Once a Year
Inspect drain line, drain spout and “P” trap for blockage,
mold or kinks. Flush with warm soapy water and replace if
worn, bent or unable to clean.
6. Clean Duct System if Required
The duct system running to and from the HRV may accu-
mulate dirt. Wipe and vacuum the duct once every year.
You may wish to contact a Heating/Ventilation company to
do this.
7. General Maintenance - Twice a Year
Wipe down the inside of the cabinet with a damp cloth to
remove dirt, bugs and debris that may be present. Pay
special attention to the drain pan and ensure water flow
path is not blocked.
8. Cleaning the Fans
Fans may accumulate dirt causing an imbalance and/or
excessive vibration of the HRV. A reduction in the air flow
may also occur. In new construction this may result within
the first year due to heavy dust and may occur periodically
after that over time depending on the outdoor conditions.
• unplug the HRV and open the service door
• remove the core
• use a small brush, such as a toothbrush or pipe
cleaner, and insert first. Scrub individual fan blades until
clean. Avoid moving or damaging balancing flat weight,
clip is usually found on one or more of the fan blades
• vacuum and wipe
Before attempting this task, thought should be given
to having a qualified service technician complete the
service work.
Maintenance HRV
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