YORK® MIXED FLOW, INLINE FAN, MODEL MFSI
3
INTRODUCTION
AMCA Certification
YORK® by Johnson Controls MFSI certi
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fies that the MFSI fans shown herein are
licensed to bear the AMCA Seal. The ratings
shown are based on tests and procedures
performed in accordance with AMCA Pub
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lication 211 and AMCA Publication 311 and
comply with the requirements of the AMCA
Certified Ratings Program.
C
ertifications & Listings
The YORK® by Johnson Controls MFSI, Mixed Flow Silent
Inliner fan, is a revolution in the fan industry. Its patented
design, combines the compact, high volume advantages
of axial fans with the low sound, high efficiency of tubular
centrifugal fans. The outstanding air and sound performance
of this fan set it apart from the competition. Its versatility al
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lows it to compete with any vane axial, mixed flow, or tubular
centrifugal fan. With the MFSI Inline fan, YORK brings its
innovation to market and sets a new standard for perfor
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mance.
Efficient
The innovative wheel of the MFSI discharges air at an angle
from the inlet, instead of perpendicularly. This gives the fan
a much higher efficiency. A significant result is the broad
peak efficiency curve that allows for using smaller fans with
-
out sacrificing sound levels or horsepower. Since the high
volume to fan size ratio allows for smaller fans than other
fan types (Table 1), the MFSI is also ideal for replacement
and retrofit projects.
Because of the high efficiency, the wheel can rotate more
slowly. The low speed wheel gives the bearings over
120,000 hours L10 (minimum) life for Class II fans. This is
three times the typical bearing life of other axial or centrifu
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gal inline fans. The L10 bearing life on Class I fans is 40,000
hours.
Air Performance & Sound
The outstanding air and sound performance of this fan al
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lows it to outperform a wide range of competitors, including
axial, inline centrifugal, and mixed flow fans.
Silent
Since the most efficient fan is also the quiet
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est, the MFSI Inline Fan excels in both
measures. Because it does not sacrifice
the high volume advantages of axial fans,
the MFSI can also take advantage of the
high efficiency and low sound of tubular
centrifugal fans. You get the best of both.
Basically, you get more CFM for the money
without a large penalty in noise. The combina
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tion of low speed, low horsepower, low sound, extra long
bearing life, and high efficiency makes the MFSI Inline fan
the best selection for low, medium or high static pressure
inline requirements.
MFSI Inline fans can be mounted horizontally or vertically.
They handle CFM ranging from 1,300 - 155,000 and static
pressure up to 7" W.G.
UL Certification
Mixed-Flow Model MFSI will carry the cUL
mark for the following:
• UL705 Power Ventilators (ZACT, ZACT7):
File #E256857
• UL762 Power Ventilators for Restaurant Exhaust
Appliances (YZHW): File #MH10147
• UL Power Ventilators for Smoke Control Systems
(ZAXH, ZAXH7): File #MH10148
Fans are shown with cutaway sections to reveal interior and
wheel. Actual fan models have totally enclosed sides.
Содержание MFSI
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