ENERGYWALL.COM
INSTALLATION, OPERATION & MAINTENANCE MANUAL 717.814.5365
11
ENERGY WALL
TM
U-ERV/U-HRV
INSTALLATION
MECHANICAL
– DUCTWORK
When designing and installing ductwork to each system, SMACNA guidelines and requirements
must be adhered to. Additionally:
•
A single duct run can and should be used for each system.
•
It is highly recommended to use insulated duct with a minimum of ¾” thick internal
insulation.
•
Flexible duct connections should never be used and avoided at all costs.
•
All transitions within the ductwork shall be gradual and all elbows shall incorporate a radius
on internal and external corners.
•
Turning vanes should be utilized whenever possible.
•
NEVER USE THE SYSTEM TO SUPPORT DUCTWORK. All ductwork must have
its own support.
•
Verify ductwork properly slides over the system flanges (fan cube when applicable). See
next page for recommended duct connection details.
•
Minimum straight duct lengths prior to any elbow per the below table must be adhered to.
Additional length is recommended to mitigate sound within the space.
•
When installing duct from curb hangers, ensure proper alignment of duct with system
inlet/discharge.
Gasket must be used to seal the duct flanges with the underside of the
curb cap.
Failure to gasket the ductwork flanges will result in airflow leakage and increases
the potential for condensation formation.
•
Secure ductwork to system using #12 or #14 x 1.25” long self-drilling screws.
DO NOT
USE LONGER THAN 1.25” SCREWS.
System Size
Recommended
Ductwork Size (IN)
Minimum Straight
Duct Length (IN)
600
12.13 x 12.13
35
1200
12.13 x 24.25
48
1800
12.13 x 36.38
60
2400
12.13 x 48.5
68
3000
12.13 x 60.63
78
3600
12 13 x 72.75
85
4200
12.13 x 84.88
90
4800
12.13 x 97
98
5400
12.13 x 109.13
103
6000
12.13 x 121.25
108
Содержание U-ERV 1200
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