Install Manual

Installing Generac PWRcell Battery
Installation Manual for Generac PWRcell Battery 21
Installing Cover
1. See Figure 4-23. Place cover (A) upright in front of
unit.
2. Slide cover straight back until it engages with body
(B).
3. Verify all angled guides are tucked inside body.
The back edges of the cover should be against the
rubber gasket along their entire length (C).
NOTE: Do not force cover into place.
4. Lift straight up. Pins on cover will automatically
engage and hold the top of the cover in place.
5. Gently push in on the bottom of the cover. This will
lock the bottom of the cover in place.
6. Peel off the protective plastic sheet from the cover.
7. Install two M4X16 mm screws (D) and torque to 13
in-lb (1.47 Nm).
To remove the cover:
1. See Figure 4-23. Remove the two M4X16 mm
SEM (D) securing cover (A) to body (B).
2. Lift cover up.
3. Pull cover bottom out slightly and lower to the floor.
B
A
C
D
009919
Figure 4-23. Installing Front Cover
Upgrading PWRcell Battery
See Figure 4-23. Inside of the PWRcell battery, battery
modules are stacked 2-deep on three levels, allowing for
up to 6 modules to be connected in a series. In systems
with less than 6 modules, a PWRcell battery can be
upgraded with additional modules up to a total of 6 mod-
ules.
Whenever upgrading a PWRcell battery:
• A Vset Function must be performed. See Using
Vset Function.
• A module spacer must be installed on any single
module shelf. See Installing Module Spacer
(PWRcell 9 and PWRcell 15 only).
Using Vset Function
NOTE: VSet Function needs to be performed before
installing new battery modules into the PWRcell battery.
NOTE: To perform Vset Function the PWRcell battery
must be at a 50% state of charge or greater.
To perform a Vset Function:
1. Initiate a shutdown. See the Generac PWRcell
Inverter Installation Manual for more information on
performing a shutdown
2. Measure the voltages of each new battery module
at the module main power terminals using a multi-
meter set to DC volts and record the voltage values
for each module.
NOTE: If the new modules have slightly different read-
ings, average the values to get a single measurement.
3. Recover from shutdown by pressing the center but-
ton on the inverter control panel.
4. Change system mode to Priority Backup.
– Navigate to the System Mode menu on the
inverter control panel.
– Select Priority Backup.
– Select Confirm to save the setting.
5. Enable the PWRcell battery.
– Navigate to the battery device page.
– Select Enable.
– Select Confirm.
6. Input voltage values into Module Vset.
– Navigate to the battery device page.
– Press inverter center button to access device
sub menu.
– Select Mod. Settings.
– Select Module Vset.
– Input the average voltage value from step 2.
– Select Commit at the bottom of the menu to save
the change.