Section 1 - General Information; Unpacking/Inspection; Protection Systems; Nec Requirement For Arc Fault Circuit Interruption Breaker For Bedrooms - Generac Power Systems Automatic Standby Generators Owner's Manual

DANGER

Only qualified electricians or contractors should
attempt such installations, which must comply
strictly with applicable codes, standards and regu-
lations.
1.1

UNPACKING/INSPECTION

After unpacking, carefully inspect the contents for
damage.
• This standby generator set is ready for installa-
tion with a factory supplied and pre-mounted base
pad and has a weather protective enclosure that is
intended for outdoor installation only.
• This UL listed standby generator set may be pack-
aged with an automatic transfer switch with built
in load center. The combination transfer switch
and load center is pre-wired with a two foot and
30 foot conduit. Circuit breakers for emergency
circuit connections are included (if equipped).
• This UL listed, 2-pole switch is rated at 100
AC amperes at 250 volts maximum. The 100 Amp
transfer switch is for indoor use only. The 200
Amp transfer switch is for indoor/outdoor use
(if equipped).

If this generator is used to power electrical load
circuits normally powered by a utility power
source, it is required by code to install a transfer
switch. The transfer switch must effectively isolate
the electrical system from the utility distribution
system when the generator is operating (NEC 700,
701 & 702). Failure to isolate an electrical system
by such means will result in damage to the gen-
erator and also may result in injury or death to
utility power workers due to backfeed of electrical
energy.
If any loss or damage is noted at time of delivery, have
the person(s) making the delivery note all damage on
the freight bill or affix their signature under the con-
signor's memo of loss or damage.
If a loss or damage is noted after delivery, separate
the damaged materials and contact the carrier for
claim procedures.
"Concealed damage" is understood to mean damage
to the contents of a package that is not in evidence at
the time of delivery, but is discovered later.
To properly open the roof, press down on the cen-
ter top lip and release the latch. If pressure is not
applied from the top, the roof may appear stuck.
Always verify that the side lock is unlocked before
attempting to lift the roof.
4
Section 1 — General Information
Air-cooled Generators
1.2

PROTECTION SYSTEMS

Unlike an automobile engine, the generator may have
to run for long periods of time with no operator pres-
ent to monitor engine conditions. For that reason,
the engine is equipped with the following systems
that protect it against potentially damaging condi-
tions:
1. Low Oil Pressure Sensor
2. High Temperature Sensor
3. Overcrank
4. Overspeed
5. RPM Sensor
6. Low Battery
There are readouts on the control panel to notify
personnel that one of these failures has occurred.
There is also a System Set LED (single cylinder) or a
Status message on the display (V-twins) that displays
when all of the conditions described in the "System
Set LED" section are true.
or 200
1.3 NEC REQUIREMENT FOR ARC
FAULT CIRCUIT INTERRUPTION
BREAKER FOR BEDROOMS
In 2001, the National Electric Code (NEC) intro-
duced a requirement for new construction. This new
requirement indicates the need for Arc Fault Circuit
Interrupters to be used to protect the complete
branch circuit that feeds a dwelling bedroom. The
actual NEC requirement is indicated below.
1.3.1 SECTION 210.12 ARC FAULT CIRCUIT
1. Definition: An arc fault circuit interrupter is a
device intended to provide protection from the
effects of arc faults by recognizing characteristics
unique to arcing and by functioning to de-ener-
gize the circuit when an arc fault is detected.
2. Dwelling Unit Bedrooms: All branch circuits that
supply 125 volt, single-phase, 15 and 20 ampere
outlets installed in dwelling unit bedrooms shall
be protected by an arc fault circuit interrupter
listed to provide protection of the entire branch
circuit.
Section 210.12 requires that AFCI protection be
provided on branch circuits that supply outlets
(receptacle, lighting, etc.) in dwelling bedrooms. The
requirement is limited to 15 and 20 ampere, 125
volt circuits. There is no prohibition against provid-
ing AFCI protection on other circuits or in locations
other than bedrooms. Because circuits are often
shared between a bedroom and other areas such as
closets and hallways, providing AFCI protection on
the complete circuit would comply with 210.12.
INTERRUPTER PROTECTION