Maintenance Routine for HRV (for ERV, see following page)
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).
6. Clean Duct Work if Required
The duct work running to and from the HRV may accumulate dirt. Wipe and vacuum the duct once every year. You may wish to contact a Heating/Ventilation company to do this.
WARNING: Blockage of hoods may cause an imbalance.
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.
2. Clean Air Filters (clean twice a year)
The standard filters equipped with your HRV are removable and washable.
a)simply open access door and slide core out
b)remove filter clips
c)once clips are removed filters can be taken off the core to be rinsed with water or a combination of mild soap and water. Do not clean in the dishwasher
d)to
e)slide core back into its’ original position
3.Clean Core Twice a Year a) open access door.
b) 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 the clean filters
f) install clean core
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 centre 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” (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, mould or kinks. Flush with warm soapy water and replace if worn, bent or unable to clean.
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
•remove ducting (metal and/or flexible insulated type) from the red and/or blue ports which are connected immediately 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.
•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.
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