Model
X
ERV-522
38
ERV-582
56
Cassette
Cassette
Supply
Weather Hood
Exhaust
Weather Hood
Access Panel
Access Panel
Access Panel
Access Panel
SERVICE CLEARANCES FOR ERV-522 AND 582
ACCESS PANEL LOCATIONS
ERV units require minimum clearances to perform routine maintenance, such as filter replacement, energy
wheel cassette inspection, and fan belt adjustment. Blower and motor assemblies, energy recovery wheel
cassette and filter sections are always provided with a service door or panel for proper component access.
Clearances for component removal are shown below.
Interior
Rooftop
Exhaust Air
Inlet
Outdoor Air Inlet
Exhaust Air Discharge
Exhaust Hood
Intake Hood
Outdoor Air
Discharge
C
asse
tte
C
asse
tte
Access Panel
Access Panel
Access Panel
Access Panel
All dimensions shown are in inches.
11
2
1
3
Access panel for:
•Electrical Control Center
•Main disconnect
•Supply blower and motor
•Exhaust inlet damper
Access panel for:
•Energy wheel cassette
•Internal filters
•Frost control
•Outdoor air sensor
4
Access panel for:
•Preheater controls
•Supply inlet damper
Access panel for:
•Exhaust blower and motor
3
3
3
3
1
4
4
1
2
2
Arrangement A
Arrangement B, C or D
X
X
X
X
X
X
X
X
