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(6) 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.
(7) Cleaning the Fans
Fans accumulate dirt causing an imbalance and/or excessive
vibration of the ERV. 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 ERV and open the service door
• remove the Core
• remove ducting (metal and/or flexible insulated type) from
the red and/or blue ports which are connected immediate-
ly inline with the
fan assembly
• use a small brush, such as an old toothbrush or pipe
cleaner, and insert first
(a) through the large opening of the fan
assembly and then
(b) through the smaller opening in the end
of the fan assembly. (see figure 4)
• 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
• reassemble making sure ducting is reattached firmly and
insulation and moisture barrier are sealed and taped
* * Before attempting this task, thought should be given to
having a qualified service technician complete the service work.
Maintenance Routine
(1) Inspect Exterior Hoods at least once a month
Make sure exhaust and fresh air supply hoods are not blocked
up or restricted by leaves, grass or dirt.
WARNING: Blockage of hoods may cause a pressure
imbalance.
(2) Clean Air Filters Four Times a Year
The standard filters equipped with your ERV are removable
and washable.
(A) simply open access door and slide core out (refer to core
maintenance).
(B) remove filter clips.
* Note approximate location and attachment of clips so that
they can be returned the same way.
(C) once clips are removed filters can be taken off the core to be
rinsed with water or a combination of soap and water.
(D) to assemble, place clean dry filters back into their positions.
(E) install core to its original position
(3) Clean Core Twice a Year
(A) open access door
(B) 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 (refer to filter
maintenance).
(D) vacuum core to remove dust from core surface.
DO NOT WASH!!
r
(E) install the clean, dry filters
r
(F) install clean core
To install the clean core:
(A) first mount the bottom flange of the core guide into the bottom H
channel approximately 1/4" (6 mm)
(B) mount the left or right side flange of the core guide approxi-
mately 1/4" (6 mm) followed
by the other side
(C) mount the top flange of the core guide into the top H channel
approximately 1/4" (6 mm)
(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.
NOTE: Core will appear to stick out from cabinet approximately
1/8" (3 mm). This is designed this way so that the access door will
fit tight against the core.
(4) Motors - MAINTENANCE FREE
(5) Clean Duct Work if Required
The duct work running to and from the ERV may accumulate dirt.
Wipe and vacuum the duct once every year. You may wish to
contact a Heating/Ventilation company to do this.
Figure 10
