Venmar HRV 2500 Owner's Manual download pdf (Page 7)

The HRV System

Components of an HRV System

An HRV system generally consists of the following equipment:

insulated ducts for incoming (fresh) and outgoing (stale) air, along with

exterior hoods;

ductwork to distribute fresh air throughout the home and to return stale air

to the HRV;

fans to circulate air throughout the home and to exhaust stale air to the

outdoors;

a heat-exchange core, where heat is transferred from one air stream to the

other;

filters to keep dirt out of the heat-exchange core;

a defrost mechanism (some units use a preheater) to prevent freezing and

blocking of the heat-exchange core when the temperature of the incoming

air is cold (not shown);

a drain to remove any condensation from inside the HRV (may not be

required with all models); and

operating controls to regulate the HRV according to ventilation needs.

Figure 1

Components of an HRV

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Venmar HRV 2500 Owner's Manual Page 7