COOK ERV User Manual
WARNING
This unit has rotating parts. Safety precautions
should be exercised at all times during installation,
operation, and maintenance.
Unit must be grounded to electrical service panel.
ALWAYS disconnect power prior to working on fan.
Failure to comply with these safety precautions could
result in property damage, serious injury or death.
ERV
ENERGY RECOVERY VENTILAT OR
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
This publication contains the installation, operation
and maintenance instructions for st andard units of the
ERV-Energy Recovery Ventilators.
For ERV with coils refer to DX & Fluid Supplements.
For cooling coil units, refer to Page 8 of this manual
for guidelines on the installation of condensate drain
traps.
Carefully read this publication prior to any installation or maintenance procedure.
Loren Cook catalog, ERV, provides additional informa-
tion describing the equipment, fan performance, available
accessories, and specification data.
For additional safety information, refer to AMCA Publication 410-96, Safety Practices for Users and Installers of
Industrial and Commercial Fans.
All of the publications listed above can be obtained from
Loren Cook Company by phoning (417)869-6474, extension 166; by FAX at (417)832-9431; or by e-mail at
info@lorencook.com.
For information on special equipment, contact Loren
Cook Company Customer Service Department at
(417)869-6474.
Receiving and Inspection
Carefully inspect the ERV and ERV accessories for any
damage and any shortage of accessories immediately
upon receipt of the fan.
• Turn each blower wheel by hand to ensure it turns
freely and does not bind.
• Inspect dampers (if supplied) for free operation of all
moving parts.
• Record on the Delivery Receipt any visible sign of
damage.
Storage
If the ERV is stored for any length of time prior to installation, store the ERV in its original crate and protect it from
dust, debris and the weather.
ERV Installation
Before installing, turn the energy wheel by hand in the
direction of rotation to insure that the wheel alignment was
not altered in shipping.
The ERV seals were preadjusted before leaving the factory. If upon inspection excessive clearance between seals
and sealing surfaces is found, adjust the seals according to
the procedure.
Inspect the drive belt and make sure that it is around the
drive sheaves and wheel. If possible, test run the wheel
before installation.
ERV 1500 - 10,000 ERV 500 - 1,000
Return Air
Filter
Access Door
Right
Control Panel
Access Door,
Exhaust Blower
Access Door
Left
Front
Back
Removable Plug
for Field
Electrical
Connections
Supply Blower,
Rotary Wheel,
And Filter
Access Door
C
B
A
Arrangement V
A
Back View
B
E
K
D
L
Exhaust
Air
Discharge
Left View
Outdoor
Air
Intake
B
C
F
S
G
R
Top View
E
D
A
M
N
C
H
JQ
P
Return
Air
Intake
Supply
Air
Discharge
Dimensions - Arrangement V
Unit A A (Coil Units) B C D E F G H J K L M N P Q
ERV 1500 54-3/16 90-3/16 40-13/32 49-9/32 10-1/4 11-13/16 18 14 19 13 6-1/8 21-1/8 6-1/16 6-11/16 3-5/8 3-1/4
ERV 2500 52-1/8 88-1/8 50-1/8 52-1/8 11-3/8 13-1/8 28 20 21 11-3/4 5-1/16 29-5/16 7-5/16 7-1/16 3-1/2 3-3/8
ERV 3500 64-1/2 100-1/2 59 60-1/2 13-7/16 15-5/8 34 20 23 16-1/2 5-7/8 33-13/16 8-13/16 7-13/16 4-3/4 4-1/8
ERV 4500 69-1/2 105-1/2 64-1/2 66-1/2 13-7/16 15-5/8 34 24 26 18-3/4 7-5/16 38-5/8 10 8-1/8 4-3/4 4-1/8
ERV 5500 69-1/2 105-1/2 71 66-1/2 15-7/8 18-5/8 44 24 26 18-3/4 5-7/16 41 8-13/16 9-3/8 4-3/4 4-1/8
ERV 7000 79-1/2 115-1/2 76-1/2 80 18-7/8 21-7/8 44 29 32 24 6-3/16 14-3/16 8-15/16 11-1/8 4-3/4 4-1/8
ERV 8500 79-1/2 115-1/2 83 80 18-7/8 21-7/8 53 29 32 24 6-3/16 14-3/16 8-15/16 11-1/8 4-3/4 4-1/8
ERV 10000 100 136 90 84-1/2 24-3/4 24-3/4 50 37 34-1/2 33 9-1/8 15-1/4 8 12-3/4 4-3/4 4-1/8
All dimensions in inches.
Unit R S
ERV 1500 4-1/16 15-5/8
ERV 2500 2-7/8 18-1/4
ERV 3500 6-1/4 18-1/16
ERV 4500 5-1/4 23-7/8
ERV 5500 5-1/4 20-1/8
ERV 7000 6-15/16 25-15/16
ERV 8500 6-15/16 22-15/16
ERV 10000 3-1/4 31-15/16
All dimensions in inches.
2
Return Air
Filter
Access Door
Right
Control Panel
Access Door,
Exhaust Blower
Access Door
Left
Front
Removable Plug
for Field
Electrical
Connections
Supply Blower,
Rotary Wheel,
And Filter
Access Door
C
B
A
Arrangement C
H
Right View
B
E
K
D
L
Return
Air
Intake
Left View
Outdoor
Air
Intake
B
C
F
S
G
R
Back View
E
D
A
M
N
C
Q
P
Exhaust
Air
Discharge
Supply
Air
Discharge
C
J
Back
B
A
Top View
Dimensions - Arrangement C
Unit A A (Coil Units) B C D E F G H J K L M N P Q
ERV 1500 54-3/16 90-3/16 40-13/32 49-9/32 10-1/4 11-13/16 18 14 19 13 5-9/32 6 6-1/8 21-1/8 3-5/8 3-1/4
ERV 2500 52-1/8 88-1/8 50-1/8 52-1/8 11-3/8 13-1/8 28 20 21 11-3/4 9-7/8 7-3/8 5-1/16 29-5/16 3-1/2 3-3/8
ERV 3500 64-1/2 100-1/2 59 60-1/2 13-7/16 15-5/8 34 20 23 16-1/2 10-7/8 8-13/16 5-7/8 33-13/16 4-3/4 4-1/8
ERV 4500 69-1/2 105-1/2 64-1/2 66-1/2 13-7/16 15-5/8 34 24 26 18-3/4 10-13/16 7-3/16 7-5/16 38-9/16 4-3/4 4-1/8
ERV 5500 69-1/2 105-1/2 71 66-1/2 15-7/8 18-5/8 44 24 26 18-3/4 12-1/4 8-7/8 5-7/16 41 4-3/4 4-1/8
ERV 7000 79-1/2 115-1/2 76-1/2 80 18-7/8 21-7/8 44 29 32 24 14-1/4 9-1/16 6-3/16 14-3/16 4-3/4 4-1/8
ERV 8500 79-1/2 115-1/2 83 80 18-7/8 21-7/8 53 29 32 24 14-1/4 9-3/16 6-3/16 14-3/16 4-3/4 4-1/8
ERV 10000 100 136 90 84-1/2 24-3/4 24-3/4 50 37 34-1/2 33 15-7/16 8-1/4 9-1/8 15-1/4 4-3/4 4-1/8
All dimensions in inches.
Unit R S
ERV 1500 4-1/16 15-5/8
ERV 2500 2-7/8 18-1/4
ERV 3500 6-1/4 18-1/16
ERV 4500 5-1/4 23-7/8
ERV 5500 5-1/4 20-1/8
ERV 7000 6-15/16 25-15/16
ERV 8500 6-15/16 22-15/16
ERV 10000 3-1/4 31-15/16
All dimensions in inches.
3
Return Air
Filter
Access Door
Right
Control Panel
Access Door,
Exhaust Blower
Access Door
Left
Front
Back
Removable Plug
for Field
Electrical
Connections
Supply Blower,
Rotary Wheel,
And Filter
Access Door
C
B
A
Arrangement H
H
Right View
B
E
K
D
L
Return
Air
Intake
Left View
Outdoor
Air
Intake
B
C
F
S
G
R
Back View
E
D
A
M
N
B
Q
P
Exhaust
Air
Discharge
Supply
Air
Discharge
C
J
Dimensions - Arrangement H
Unit A A (Coil Units) B C D E F G H J K L M N P Q
ERV 1500 54-3/16 90-3/16 40-13/32 49-9/32 10-1/4 11-13/16 18 14 14 18 5-9/32 6 5-1/8 18-5/8 6-1/8 21-1/8
ERV 2500 52-1/8 88-1/8 50-1/8 52-1/8 11-3/8 13-1/8 28 20 20 28 9-7/8 7-3/8 5-9/16 13-1/4 5-1/16 29-5/16
ERV 3500 64-1/2 100-1/2 59 60-1/2 13-7/16 15-5/8 34 20 20 34 10-7/8 8-13/16 5-5/16 18 5-7/8 33-13/16
ERV 4500 69-1/2 105-1/2 64-1/2 66-1/2 13-7/16 15-5/8 34 24 24 34 10-13/16 7-3/16 4-5/16 23-13/16 7-5/16 38-5/8
ERV 5500 69-1/2 105-1/2 71 66-1/2 15-7/8 18-5/8 44 24 23 42 12-1/4 8-7/8 4-5/16 22 5-7/16 41
ERV 7000 79-1/2 115-1/2 76-1/2 80 18-7/8 21-7/8 44 29 27 42 14-1/4 9-1/16 7-1/8 27-7/8 6-3/16 14-3/16
ERV 8500 79-1/2 115-1/2 83 80 18-7/8 21-7/8 53 29 27 46 14-1/4 9-3/16 7-1/8 29-7/8 6-3/16 14-3/16
ERV 10000 100 136 90 84-1/2 24-3/4 24-3/4 50 37 32 48 15-7/16 8-1/4 4-3/8 33-7/8 9-1/8 15-1/4
All dimensions in inches.
Unit R S
ERV 1500 4-1/16 15-5/8
ERV 2500 2-7/8 18-1/4
ERV 3500 6-1/4 18-1/16
ERV 4500 5-1/4 23-7/8
ERV 5500 5-1/4 20-1/8
ERV 7000 6-15/16 25-15/16
ERV 8500 6-15/16 22-15/16
ERV 10000 3-1/4 31-15/16
All dimensions in inches.
4
Removable Plug
For Field
Electrical
Connections
(Bottom Panel)
Hinged Access to
All Internal Components
Front
Left View
K E
J
D
F
Supply Air
Discharge
Return Air
Intake
G
M
L
Right View
F
G
M
L
K
E
J
D
B
Outdoor Air
Intake
C
Exhaust Air
Discharge
A
Right
H
Back
Left
Dimensions - Direct Drive
Unit
Mounting
Rail Length
Housing
Width
Housing
Height
Exhaust Opening Intake Opening
Mounting
Holes
JKLM
ABCDEFGH
ERV 500 52 22 23-13/16 7 5-11/16 7 12 50 4 5-5/16 1-1/2 4
ERV 1000 52 26 28-13/16 10-3/8 6-7/8 7 20 50 6-11/16 11-7/16 1-1/2 4
All dimensions in inches.
Service Clearance- Direct Drive
Unit
500 30
1000 35
All dimensions in inches.
Service
Clearance
Service Clearance
5
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