Product Manual

Operation
18 Automatic Transfer Switch Owner’s Manual
Shutting Generator Down To Perform
Maintenance
1. Turn the main utility disconnect OFF (OPEN).
2. Turn the MLCB (generator disconnect) on the
generator to OFF (OPEN).
3. Press the OFF mode button on the controller and
follow maintenance procedure(s).
To turn the generator back ON:
1. Put the generator into AUTO mode.
2. Set the MLCB (generator disconnect) on the
generator to ON (CLOSED).
3. Turn the main utility disconnect ON (CLOSED).
The system is now in automatic mode.
Testing The SACM
A “Test” pushbutton is provided on top of the SACM to
test the operation of the load shed functions. The test
pushbutton will work when the ATS is in the utility or the
generator position.
1. Turn on the utility supply to the ATS.
2. Verify managed loads are powered and all LEDs
illuminate on SACM.
3. Press the TEST button on the SACM.
4. Verify that all of the connected loads to be “shed”
become disabled.
5. After five (5) 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.
SACM Fuse Service
See Figure 4-2. A fuse removal and installation tool (A)
is included in the SACM housing.
Figure 4-2. Fuse Removal and Installation Tool
If a fuse requires replacement, snap the tool free with an
appropriate tool such as diagonal pliers, and use it to
replace the fuse. The tool can be stored in the SACM
housing retainer directly above the fuses, with the large
thumb tab facing out.
Use only Generac replacement fuses—part number
10000005117, rated 240 VAC, 6.3 Amps, 10,000 AIC.
Alternative fuses are Littelfuse® 021606.3MXHP or
Optifuse® FCD-6.3.
Testing The SMM
Refer to the SMM Owner’s/Installation Manual for testing
procedure.
004437
A