Operation
14
Automatic Transfer Switch Owner’s Manual
Shutting Generator Down To Perform
Maintenance
Proceed as follows to shut down generator for mainte-
nance:
1.
Press OFF button on controller.
2.
Turn main utility disconnect OFF (OPEN).
3.
Turn MLCB (generator disconnect) on generator to
OFF (OPEN) and follow maintenance proce-
dure(s).
To turn generator back ON:
1.
Turn main utility disconnect ON (CLOSED).
2.
Put generator into AUTO mode.
3.
Set MLCB (generator disconnect) on generator to
ON (CLOSED).
The system is now in AUTO mode.
Testing the SACM
A TEST pushbutton is provided on top of the SACM to
test operation of load shed functions. The TEST button
will work when ATS is in utility or generator position. Pro-
ceed as follows to test the SACM:
1.
Turn on utility supply to ATS.
2.
Verify managed loads are powered and all LEDs
illuminate on SACM.
3.
Press TEST button on the SACM.
4.
Verify all of the connected loads to be “shed” are
disabled.
5.
After five minutes, verify A/C 1 is energized and
Status LED A/C 1 is ON.
6.
After another 15 seconds, verify A/C 2 is energized
and Status LED A/C 2 is ON.
7.
After another 15 seconds, verify Load A/C 3 is
energized and Status LED Load A/C 3 is ON.
8.
After another 15 seconds, verify A/C 4 is energized
and Status LED A/C 4 is ON.
Testing The SMM
See SMM owner’s/installation manual for testing proce-
dure.
Fuse Removal and Installation
See
. A fuse removal and installation tool (A)
is included in the control housing.
Figure 3-2. Fuse Removal and Installation Tool
If a fuse requires replacement, snap tool free with an
appropriate tool such as diagonal pliers, and use it to
replace fuse. The tool can be stored in the control hous-
ing retainer directly above the fuses, with the large thumb
tab facing out.
Use only Generac replacement fuses—part number
100000005117, rated 240 VAC, 6.3 Amps, 10,000 AIC.
Alternative fuses are Littelfuse
®
021606.3MXHP or Opti-
fuse
®
FCD-6.3.
10000004183
Rev. A
M1704
A
005450
