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25
17
S
ERVICE AND
M
AINTENANCE
Servicing your HRV on a regular schedule will result in optimum operating efficiencies and prolonged life of the
equipment. Due to numerous applications in which this equipment can be installed, it is difficult to predict servicing
intervals. In certain situations where there is heavy smoke, servicing the equipment every one to two months may be
needed; whereas ventilating a meeting room for carbon dioxide may only need service every six months to a year.
Motor
Access to the motor is through the front service doors. Note heat exchanger core can be removed to provide more room.
See CORE in this section. The motor is a permanent split capacitor type (PSC) which uses a sleeve mechanism to steady
the shaft.
Core
The heat exchange core is accessible
through the front service door. Special
care and attention should be given to
this component as the edges may be
sharp, and the core itself susceptible
to damage if dropped.
When removing the core, the location
it is removed from should be noted.
The core is removed by carefully
pulling the core outward from the
unit, sliding it evenly along its “H
channel” supports found in each
corner of the core. Note the core may
have some resistance when sliding
out. Avoid tilting the core as this will
result in its edges catching the H
channel and temporarily preventing its removal.
In most cases, washing the core in a mild detergent and warm water will be all that is needed to completely clean them.
Do not use harsh chemicals as this may cause corrosion in the HRV. The time between core 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. When reinstalling the core, you must note foam location and drip edge location for proper core placement. See
diagram below.
With t
he core in its proper position, place the bottom flange, (approximately 1/4”) into its H channel support, then place
the left side, the right side and finally the top flange into place in the same fashion. Once all four corners are in place,
push the core evenly into the cabinet until it reaches the back. Be sure the drip edges are overlapping the drip trays.
Note the core will protrude slightly out from the front of the cabinet, this is so the access door, when closed, ensures a
tight fit.
Attention
•
When removing cores and filters note their original location and arrangement
•
Soak and rinse the HRV core in warm soapy water.
•
Do not use cleaning solutions for the HRV core.
•
Do not use bleach or chlorine.
•
Do not use a pressure washer on the HRV core.
•
Do not place the HRV core in a dishwasher.
