Greenheck Fan Energy Recovery Ventilator ERV - Manual (Page 15)

15
The ERV unit can add to the benefit of a building design anywhere that outdoor air is required and the exhaust
air is considered “clean” (ASHRAE class 1 or class 2 air ratings). Some examples of commercial and institutional
applications where energy recovery units have been utilized are given below.
With Ducted Air Handlers
The ERV unit may be combined with ducted air handling units or fan coil boxes. A single energy recovery
ventilator may provide fresh outdoor air for multiple air handling units or in a one-to-one ratio where a single
energy recovery ventilator and air handler serve one space.
With Packaged Rooftop Equipment
This diagram illustrates how energy recovery
ventilators may be used in conjunction
with packaged rooftop equipment. Fresh,
outdoor air enters the energy recovery
ventilator and is pretreated before entering
the heating/cooling equipment. This
pretreating occurs because the energy
recovery wheel is transferring latent and
sensible energy between the outdoor air and
the building exhaust air.
Typical Applications
Animal Shelters Bars and Clubs Churches Dormitories
Locker Rooms Nursing Homes Office Buildings Printing Shops
Restaurants Schools Function Halls Casinos
Veterinary Hospitals
Energy
Wheel
Cooling
Coil
Heating
Coil
RELIEF AIR
RESTROOM
EXHAUST AIR
SUPPLY AIR
OUTDOOR AIR UNIT (OA unit)
WITH ENERGY RECOVERY AIR HANDLING
UNIT (AHU)
72°F 50% 72°F 50%
ZONE 1 ZONE 2
OUTDOOR
AIR
Exhaust
Fan
AHU
Cooling
Coil
Heating
Coil
Heating
Coil
Cooling
Coil
Energy
Wheel
RESTROOM
SUPPLY AIR
AIR HANDLING
UNIT (AHU)
72°F
ZONE 1
EXHAUST
AIR
50%
ENERGY RECOVERY
VENTILATOR (ERV)
Supply
Fan
Exhaust
Fan