Auto Exercise Timer - Generac Power Systems MAGNUM MDG20IF4 Operating Manual

Diesel generator with power zone controller

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Table Of Contents

Table of Contents

Operation

Incoming

Utility

Power

Utility

Meter

Power From

Generator

FAILURE TO ISOLATE THE GENERATOR FROM THE NORMAL POWER UTILITY CAN

CAUSE POTENTIALLY LETHAL VOLTAGE TO BACKFEED INTO THE UTILITY LINES.

THIS MAY RESULT IN INJURY OR ELECTROCUTION OF UTILITY WORKERS NEARBY.

MAKE SURE THE GENERATOR IS ISOLATED BY A TRANSFER SWITCH FROM ANY

LOCAL UTILITY LINES. THIS ALSO APPLIES IF THE GENERATOR IS BEING USED

AS A BACKUP TO SOME OTHER TYPE OF POWER SUPPLY.

Installation of a transfer switch or other type of remote starting device is the responsibility of the user. Installation of

such devices must be performed by following all directions supplied by the manufacturer of the switch. If attaching

the unit to a power supply normally serviced by a utility company, notify the utility company and check state and local

regulations. Familiarize yourself with all instructions and warning labels supplied with the switch.

ONLY a licensed electrician should perform wiring and related connections to the

generator. Installation should be in compliance with the National Electrical Code

(NEC), state and local regulations. Failure to follow these procedures could result in

property damage, personal injury or death. Before any connections are attempted,

make sure the main circuit breaker and the Control Power switch are in the OFF (O)

position and that the negative (-) battery cable has been disconnected from the battery.

When using the unit as a standby or substitute power supply, make sure the output voltage

and phase rotation of the generator match those of the local power utility. Improper voltage

or phase rotation may cause equipment damage or malfunction.