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Base Mounting
with Base Vibration Isolators
• The base isolators kit includes four (4) isolators,
four (4) brackets and required hardware.
• Assemble and mount the isolators as shown in the
figures below.
Factory-mounted
bracket
3/8-inch bolt
Flat washer
Base Vibration Isolator Assembly
Assembled and Mounted Isolator Detail
®
1 Fan
Wheel
Dia.
1 Fan
Wheel
Dia.
Turning
Vanes
Turning
Vanes
GOOD
Lock washer
Isolator
Ductwork Connections
Examples of poor and good fan-to-duct connections
are shown. Airflow out of the fan should
be directed straight or curve the
same direction as the
fan wheel rotates. Poor
duct installation will result
1 Fan
Wheel
Dia.
in low airflow and other
system effects.
Recommended Discharge Duct Size and Length
MiniCore
5
10
• Recommended duct sizes are based on velocities across the cfm
range of each model at approximately 800 feet per minute (FPM)
1.2
at minimum airflow and up to 1600 fpm at maximum airflow.
1.0
Recommended duct sizes are only intended to be a guide and
may not satisfy the requirements of the project. Refer to plans for
0.8
appropriate job specific duct size and/or velocity limitations.
1 Fan
Wheel
Dia.
0.6
• Straight duct lengths were calculated based on 100% effective
duct length requirements as prescribed in AMCA Publication
0.4
201. Calculated values have been rounded up to nearest foot.
POOR
GOOD
0.2
POOR
0.0
0
POOR
POOR
GOOD
POOR
Length of Straight Duct
GOOD
Duct Size
Straight Duct Length
9.75
9.75
SYSTEM EFFECT FACTOR CURVES
SYSTEM EFFECT FACTOR CURVES
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
5
10
5
10
15
20
25
30
35
FPM X 100
OUTLET VELOCITY
Energy Core Ventilator
GOOD
POOR
Length of Straight Duct
GOOD
3
3
15
20
25
30
35
40
40
45
FPM X 100
OUTLET VELOCITY
7
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