Generac Power Systems MAGNUM MTT20IF4, Operating Manual

Page: 30 / 52

30
REMOTE START TERMINAL BLOCK
The remote start terminal block provides a connection for installation of a remote start
switch which will allow the unit to be started by a remote dry-contact closure switch.
For location of the remote start terminal block, refer to
“Main Control Panel” on page 17 .
Before entering Auto mode, verify that the contacts on any remote switch linked to the
unit are
OPEN . If the contacts on a remote switch are closed, the engine will crank
and start when Auto mode is entered. Attach the switch leads to the two unused
terminals on the unit’s remote start terminal block. For additional information, refer to
“Auto (Remote) Starting of the Unit” on page 27 .
TRANSFER SWITCH
The generator neutral is bonded to ground when shipped from the factory. The bonding
plate will need to be removed when the generator is used as a standby power supply.
Installation should be in compliance with the National Electrical Code (NEC), state and local
regulations.
When the generator is used as a standby power supply, it must be equipped with a transfer switch which isolates it
from the utility’s distribution system. A transfer switch is designed to transfer electrical loads from the normal power
source (utility) to the emergency power source (generator) when normal voltage falls below a prescribed level. The
transfer switch automatically returns the load back to the normal source when power is restored back to operating
levels.
DANGER
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 generator user.
Installation of such devices must be performed by following all directions supplied by the manufacturer of the switch.
If attaching the generator 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.
Remote Start
Switch Terminals
00886
Incoming
Utility
Power
Utility
Meter
Transfer
Switch
Main
Distribution Panel
(Utility Power)
Emergency
Distribution Panel
(Generator Power)
Power From
Generator
WHITE = Incoming
Utility Power
GRAY = Normal Utility
Power Circuit
BLACK = Emergency
Generator Power Circuit
00206