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2-8
INSTALLING TYPE II FAN SPEED
SELECTOR KIT
A fan speed selector may be required for
a merchandiser to operate for certain
applications such as Type II conditions .
However, if the speed key is removed, the fans
will return to the default fan speed, which
typically aligns with Type I operation . Each
key is configured from the factory to operate
for the specific model for which it was ordered .
ANSI/NSF-7 Type II – Display Refrigerator / Freezer
Intended for 80°F / 55% RH Ambient Application
Contact your Hussmann representative to
order this kit if the cases in your lineup are
required to operate in Type II conditions . The
selector will operate up to 6 fan motors . Only
an experienced electrician should install the fan
selector .
1 . Mount the selector inside of the wireway
of each case . Insert the speed key into the
selector . Insert harness connector (2-pin) into
the Selector . The 2-pin side supplies power to
the selector . It can be used with 110V or 220V
circuits .
2 . Insert the harness connector (3-pin) into the
selector . The 3-pin side sends a signal to the fan
motor and the fan speed RPM is now changed
to the new setting .
Harness Routing and Field Connections are
shown on the next Page .
P/N 0535974 _R
»
Copyright National Electrical Manufacturers Association
Provided by IHS Markit under license with NEMA
No reproduction or networking permitted without license from IHS
U.S. & Canada 1-800-922-1919 • Mexico 01-800-890-2900 • www.hussmann.com
A1.2
Signal Words
The meaning of the different signal words as defined by the ANSI Z535.6 and A
may be explained in collateral materials. The following artwork may be used for
— LOCK OUT / TAG OUT —
To avoid serious injury or death from electrical
shock, always disconnect the electrical power at
the main disconnect when servicing or replacing
any electrical component. This includes, but is
not limited to, such items as doors, lights, fans,
heaters, and thermostats.
A1.3
Other Highlighting Conventions
The meaning of any other highlighting conventions used to differentiate safety m
manipulations, indention, etc.) may be explained in collateral materials.
A1.4
Safety Symbols
The meaning of any safety symbols used on safety labels or collateral materials
collateral materials.
2-Pin Input Line Voltage
to Selector
3-Pin Low Voltage
Signal to Fan Motor
(for RPM Speed)
DANGER indicates a hazardous situ
avoided, will result in death or se
WARNING indicates a hazardous si
avoided, could result in death or
CAUTION indicates a hazardous sit
avoided, could result in minor or
NOTICE is used to address practice
physical injury.
Safety instructions (or equivalent) si
safety-related instructions or pro
© 2017 National Electrical Manufacturers Association
Licensee=Hussmann Corp/8160899001, User=Trev
Not for Resale, 02/16/2021 11:49:55 MST
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