User Guide

Table Of Contents
23
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 - 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 HRV Core in this section.
The motor is a permanent split capacitor type (PSC) which
uses a sleeve mechanism to steady the shaft.
HRV 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 guide rail sup-
ports found on the top and bottom corners, and on either
side 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 guide rail and temporarily pre-
venting 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 cor-
rosion 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.
Models 455, 700, 1200
Model 650
When removing cores and filters note their location and arrangement.
CORE
DRAIN PANS
FILTER
FILTER
FILTER
FILTER
Service and Maintenance
CORE CORE
DRAIN PAN