Generac Power Systems MAGNUM MLT4200IVF4, Owner'S Manual, Page: 26 / 56

Operation
22 Owner’s Manual for MLT4200IVF4 Light Tower
Figure 3-6. Location of Outlets
See Figure 3-6 . The circuit breakers are labeled with the
corresponding voltage for the receptacle they protect.
Should the main breaker trip, remove some of the load to
the receptacles before turning them back on.
With all of the lights OFF, full generator power output is
available to the receptacles.
NOTE: All equipment or load panels connected to the
generator MUST be properly grounded. If these
appliances do not have grounded plugs, a ground wire
MUST be added between the equipment and the
grounding stud on the receptacle panel per the National
Electrical Code (NEC), state, and local regulations.
Remote Start Terminal Block
See Figure 3-7 . The remote start terminal block (A) is
located near the control panel and 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.
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 more information, refer to
Auto (Remote) Starting of the Unit .
Figure 3-7. Remote Start Terminal Block
Transfer Switch
When the unit 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.)
Figure 3-8. Transfer Switch Operation
A 240V/30A Twist-lock
B 120V/20A GFCI
C 240V/50A Twist-lock
Breakers Located
Behind The Panel
A
B
C
003983
A Incoming Utility Power
B
Emergency Distribution Panel (Generator
Power)
C Main Distribution Panel (Utility Power)
D Transfer Switch
E Power From Generator
003984
A
(000226a)
Phase rotation must be compatible.
Incompatible phase rotation could result
in equipment damage, death or serious injury.
WARNING
C
D
E
F
002807
A
B