Section 1 — General Information
Guardian
DANGER
Only qualified electricians or contractors should
!attempt such installations, which must comply strictly with applicable codes, standards and regulations.
1.1UNPACKING/INSPECTION
After unpacking, carefully inspect the contents for damage.
•This standby generator set has been factory sup- plied with a weather protective enclosure that is intended for outdoor installation only.
•This standby generator set is packaged with an automatic transfer switch with built in load center. The combination transfer switch and load center is
•This UL listed,
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 trans- fer switch. The transfer switch must effectively isolate the electrical system from the utility dis- tribution system when the generator is operat- ing (NEC 700, 701 & 702). Failure to isolate an electrical system by such means will result in damage to the generator 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.
1.2PROTECTION 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 conditions:
1. | Low Oil Pressure Sensor | 3. | Overcrank |
2. | High Temperature Sensor | 4. | Overspeed |
There are LED readouts on the control panel to noti- fy personnel that one of these faults has occurred. There is also a “System Set” LED that is lit when all of the conditions describe in Section 1.3 are true.
1.3NEC REQUIREMENT FOR ARC FAULT CIRCUIT INTERRUPTION
BREAKER FOR BEDROOMS
In 2001, the National Electric Code (NEC) introduced 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 INTERRUPTER PROTECTION
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
2.Dwelling Unit Bedrooms: All branch circuits that supply 125 volt,
Section 210.12 requires that AFCI protection be pro- vided on branch circuits that supply outlets (recepta- cle, lighting, etc.) in dwelling bedrooms. The require- ment is limited to 15 and 20 ampere, 125 volt cir- cuits. There is no prohibition against providing 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 hall- ways, providing AFCI protection on the complete cir- cuit would comply with 210.12.
If during the installation of the Guardian Home Standby system the decision is made to provide back up power to a bedroom branch circuit, then the cir- cuit breaker in the Guardian Transfer Switch should be replaced with an Arc Fault Circuit Interrupter.
It is most important that breakers only be switched like for like. For instance, if replacing a 15A breaker, it MUST be replaced with a 15A AFCI breaker. Likewise, a 20A breaker MUST be replaced with a 20A AFCI.
These AFCI breakers are available at the nearest Home Depot or hardware store.
Siemens Item # | Description |
Q115AF | 15A Single Pole AFCI |
Q120AF | 20A Single Pole AFCI |
4 Generac® Power Systems, Inc.