Install Manual
Table Of Contents
- Table of Contents
 - Section 1: Safety
 - Section 2: General Information
 - Section 3: Installation
- Introduction to Installation
 - Inverter Versions Compatibility
 - Mounting
 - Open Enclosure
 - Connecting Utility and Standby Power Sources
 - Connecting the ATS Control Cable
 - Connecting the Current Transformer (CTs)
 - Connecting PWRcell ATS Controller
 - Connecting the Grid Sense Wires
 - Manual Override Button
 - Configuring the Inverter
 - Fault Current Label
 
 - Section 4: Operation
 - Section 5: Drawings and Diagrams
 
Operation
Automatic Transfer Switch Owner’s Manual 19
2. Verify proper operation of the system as outlined in
the appropriate installation and owner’s manuals.
3. Educate  the  end-user  on  the  proper  operation,
maintenance and service call procedures.
NOTE:  The Utility Power Circuit Breaker in the transfer
switch must  be  turned  OFF  to  simulate  a utility outage.
Shutting off the main disconnect in a subpanel connected
to the transfer switch will NOT simulate an outage. 
Maintenance
The  PWRCell  ATS  requires  no  specific  maintenance.
See  Section  4  of  the  PWRCell  Owner’s  Manual  for
information about maintaining your PWRCell System.
Testing the PWRcell ATS Controller
A  “Test”  pushbutton  is  provided  on  top  of  the  PWRcell
ATS  Controller  to  test  the  operation  of  the  load  shed
functions. The test pushbutton will work when the ATS is
in the utility or the inverter position.
1. Turn on the utility supply to the ATS.
2. Wait for 5 minutes.
3. Verify  managed  loads  are  powered  and  all  LEDs
illuminate on controller.
4. Press the TEST button on the controller.
5. Verify that all of the connected loads to be “shed”
become disabled.
6. After five (5) minutes verify A/C 1 is energized and
Status LED A/C 1 is ON.
7. After another 15 seconds, verify A/C 2 is energized
and Status LED A/C 2 is ON.
8. After  another  15  seconds,  verify  Load  A/C  3  is
energized and Status LED Load A/C 3 is ON.
9. After another 15 seconds, verify A/C 4 is energized
and Status LED A/C 4 is ON.
PWRcell ATS Controller Fuse Service
See Figure 4-2. A fuse removal and installation tool (A)
is included in the controller 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 controller
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®  021606.3MXP  or
Optifuse® FCD-6.3.
Testing The SMM
Refer to the SMM Owner’s/Installation Manual for testing
procedure.
(000191)
DANGER
Automatic start-up. Disconnect utility power and 
render unit inoperable before working on unit. 
Failure to do so will result in death or serious injury.
A










