ERV
HE1.5XRT
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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12
INSTALLATION
PLANNING
YOUR INSTALLATION
CONNECTING HORIZONATAL DUCTS TO UNIT
Flanged duct connections are provided on the horizontal duct connections of the HE1.5XRTR,
RTF, and RTH units. These allow for connection of ducts. Please refer to dimension drawings for duct
flange sizes.
INSIDE DUCTWORK SYSTEM
Follow Engineer’s Ductwork Design
Ductwork should be designed by an engineer
to allow the unit to provide the required airflow.
Duct Insulation
If the inside ducts run through un-conditioned
spaces, they must be insulated, with a sealed
vapor barrier on both inside and outside of
insulation.
Use Dampers to Set and Balance Airflow Rates
In most applications, the airflow rate for both the
Fresh Air and the Exhaust Air should be roughly
equal (or “balanced”) for best performance of the
HE1.5XRT Unit. See unit specification sheet for
CFM/ESP curves for available horsepower motors.
APPLICATIONS
See figure F4
for examples of some common installation approaches.
The unit’s fresh air inlet should be at least 10’ away from any exhaust, such as dryer vents, chimneys,
furnace and water heater exhausts, or other sources of contamination or carbon monoxide. Do not locate the
fresh air inlet where vehicles may be serviced or left idling. Never locate the unit inside a structure.
Danger of damage or severe injury if high winds move this unit. Secure unit to structure. Observe local code
requirements at a minimum.
WARNING
F
4
Common Installation Approaches
AHU
ERV
AHU
ERV
ERV
CONDITIONED SPACE
