Filter
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3
®
The APEX brings in
fresh, outdoor air and
removes stale, exhaust
air. Prior to discharging
the exhaust air, the
energy recovery wheel
transfers energy from
the exhaust air to the
outdoor air at an
efficiency of 70-80%.
Simply put, this unit
preconditions the
outdoor air to save
money on heating and
cooling costs. This
particular unit also has
cooling and heating
options available after
the recovery wheel to
further condition the
fresh air temperature if
desired.
Fresh
Outdoor Air
Fresh
Outdoor Air
Exhaust Air
discharged outside
Exhaust Air
discharged outside
Exhaust Air
from building
Preconditioned Air
sent to RTU or AHU
Optional Cooling &
Heating Coils
Energy Recovery Wheels
Top View
Side View
The system design and installation should follow
accepted industry practice, such as described in the
ASHRAE Handbook.
Adequate space should be left around the unit for
piping coils and drains, filter replacement, and
maintenance. Sufficient space should be provided on
the side of the unit for routine service and component
removal should that become necessary. See Service
Clearances for more details.
Lifting
1) Before lifting, be sure that all shipping material has
been removed from unit.
2) To assist in determining rigging requirements,
weights are shown on next page.
3) Unit must be lifted by the eight lifting lugs provided
on base structure.
4) Rigger to use suitable mating hardware to attach to
unit lifting lugs.
5) Two spreader bars must span the unit to prevent
damage to the cabinet by the lift cables.
6) Always test-lift the unit to check for proper balance
and rigging before hoisting to desired location.
7) Never lift units by weatherhoods.
8) Never lift units in windy conditions.
9) Preparation of curb and roof openings should be
completed prior to lifting unit to the roof.
10) Do not use fork lifts for handling unit.
Lift using lifting lugs
and spreader bars
FIGURE 1: Example diagram of lifting the APEX
SAFETY WARNING
All factory provided lifting lugs must be used
when lifting the units. Failure to comply with
this safety precaution could result in
property damage, serious injury, or death.
Installation
Basic Unit Operation