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1.1
INTRODUCTION
This manual has been prepared especially for the
purpose of familiarizing personnel with the design,
application, installation, operation and servicing of
the applicable equipment. Read the manual carefully
and comply with all instructions. This will help to
prevent accidents or damage to equipment that might
otherwise be caused by carelessness, incorrect appli-
cation, or improper procedures.
Every effort has been expended to make sure that the
contents of this manual are both accurate and cur-
rent. Generac, however, reserves the right to change,
alter or otherwise improve the product at any time
without prior notice.
1.2
EQUIPMENT DESCRIPTION
The automatic transfer switch is used for transfer-
ring critical electrical load from a UTILITY (Normal)
power source to a EMERGENCY (Standby generator)
power source. Such a transfer of electrical loads
occurs automatically when the UTILITY power source
has failed or is substantially reduced and the EMER-
GENCY source voltage and frequency have reached
an acceptable level. The transfer switch prevents elec-
trical feedback between two different power sources
(such as the UTILITY and EMERGENCY sources)
and, for that reason, codes require it in all standby
electric system installations.
1.3
TRANSFER SWITCH DATA DECAL
A DATA DECAL is permanently affixed to the transfer
switch enclosure. Use this transfer switch only with
the specific limits shown on the DATA DECAL and on
other decals and labels that may be affixed to the
switch. This will prevent damage to equipment and
property.
2
Generac
®
Power Systems, Inc.
Section 1 — General Information
Generac GTS "W" Type Transfer Switch
When requesting information or ordering parts for this
equipment, make sure to include all information from
the DATA DECAL.
Record the Model and Serial numbers in the space pro-
vided below for future reference.
MODEL #
SERIAL #
1.4
TRANSFER SWITCH ENCLOSURE
The standard switch enclosure is a National
Electrical Manufacturer's Association (NEMA) 3R
type. NEMA 3R type enclosures primarily provide a
degree of protection against falling rain and sleet;
undamaged by the formation of ice on the
enclosure.
1.5
SAFE USE OF TRANSFER SWITCH
Before installing, operating or servicing this equip-
ment, read the SAFETY RULES (inside front cover)
carefully. Comply strictly with all SAFETY RULES to
prevent accidents and/or damage to the equipment.
Generac recommends a copy of the SAFETY RULES
are made and posted near the transfer switch. Also,
be sure to read all instructions and information
found on tags, labels and decals affixed to the equip-
ment.
Two publications that outline the safe use of transfer
switches are the following:
• NFPA 70; National Electrical Code
• UL 1008, STANDARD FOR SAFETY-AUTOMATIC
TRANSFER SWITCHES
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