Trane HUV Installation Operation & Maintenance page 39

Exploded View
UV-PRC001-EN
Application
Considerations
Top View
Side View
Energy Recovery
Compatible Unit Ventilator
The energy recovery unit ventila-
tor (ERS) is designed to work with
a classroom unit ventilator. This
energy recovery design allows up
to 500 cfm of outside air to be cir-
culated into the space while cut-
ting the ventilation load by 75-
percent on the classroom unit
ventilator.
The ERS contains an air-to-
air heat exchanger (desic-
cant heat wheel) with two
separate air streams flowing
in a counter-clockwise direc-
tion. The desiccant wheel has a
75-percent efficiency that transfers
both latent and sensible loads
from the outside air in the summer
to the exhaust air. In the winter,
the wheel adds the room's latent
and sensible loads to the in-
coming ventilation air.
The energy recovery unit ven-
tilator allows owners to bring
the required outside air and
save energy. The unit also
provides a reliable solution to
ASHRAE 62-89 outside air require-
ments.
The energy recovery system
allows the unit
ventilator to
be down-
sized along
with the
chiller, boil-
er and pip-
ing.
Typical Application
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