INSTALLATION INSTRUCTIONS
EN ERGY RE COV ERY VEN TI LA TOR
Applies to Model XBWS when used with Option AQ21
Vertical Supply and Return Air
INSTALLATION INSTRUCTIONS FOR ROOFTOP STAND ALONE
ENERGY RECOVERY UNIT IN SIDE BY SIDE DESIGN
FORM RZ-NA-I-XBWS-AQ21
MARCH 30, 2005
SUPERCEDES 09-13-04
DXX-2ZERV
PAGE 1
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Ship ping and Pack ing List
Package contains:
1 — Energy Recovery Ventilator Assembly
I I
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Ship ping Dam age
Check unit for shipping damage. Receiving party should contact last carrier immediately if shipping damage is found.
III
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Gen eral
These instructions are intended as a general guide and do not supersede local codes in any way. Authorities having
jurisdiction should be consulted before installation.
IV -
Re quire ments
When installed, the unit must be electrically wired and grounded in accordance with local codes or, in absence of local
codes, with the current National Electric Code, ANSI/NFPA No. 70.
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Ap pli ca tion
These Energy Recovery Ventilators (
ERV)
are used in a down discharge manner equipped
with field provided
balancing damper assembly
through the roof. A roof curb must be provided to Rooftop Systems specifications. These
wheels conserve energy by mixing warmer air with cooler air in the following manner:
Re cov ery Wheel Mode
The Recovery Wheel mode is accomplished by two blowers providing continuous exhaust of stale indoor air and
replacement by equal amount of outdoor air. Energy recovery is achieved by slowly rotating the energy recovery wheel
within the cassette frame work. In winter, the ERV adsorbs heat and moisture from the exhaust air stream during one half
of a complete rotation and gives them back to the cold, drier intake air supply during the other half rotation. In summer, the
process is automatically reversed. Heat and moisture are absorbed from incoming fresh air supply and transferred to the
exhaust air stream. This process allows outdoor air ventilation rates to be increased by factors of three or more without
additional energy penalty or increase in size of heating or air conditioning systems.
VI -
Rig ging Unit For Lift ing
1- Maximum weight of unit is — Varies per Series {300-1200 Lbs.} (Crated)
2- Remove crating.
3- All panels must be in place for rigging.
4- Remove barometric exhaust hood from door marked filter access. Install barometric exhaust hood over exhaust blower
outlet.
5- Duct work should be installed into roof curb before installing ERV on curb.
6- Roof curb gasket must be applied to all top surfaces of the curb.
Energy recovery COMPONENT certified
to the ARI Air-to-Air Energy Recovery
Ventilation Equipment Certification
P r o g r a m i n a c c o r d a n c e w i t h AR I
Standard 1060-2000 . Actual performance
in packaged equipment may vary.
ETL Certified per UL 1995
and CSA 22.2
