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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

Service and Maintenance

CORE CORE

DRAIN PAN