Section 2 - Installation; Field Wiring; Connecting To The Generac Generator; Utility Supply Connections (18.0L And 22.0L Only) - Generac Power Systems PowerManager PM-GC Manual

2.1

FIELD WIRING

Wiring must comply with ALL local and nation-
!
al codes. Only qualified personnel knowledge-
able of these local and national codes should
perform any wiring to and from the generator.
◆
2.1.1 CONNECTING TO THE GENERAC
GENERATOR
Connecting to the generator is achieved by connecting
directly to the main line circuit breaker. The connec-
tors are capable of accepting conductors ranging
from 350 MCM to 6 AWG. Check all national and
local codes for proper conductor sizing. The connec-
tor part number and tightening torque are as follows:
Part Number Tightening Torque
057329 (1-2) 375 in - lb (Al/Cu)
(1-2) 200 in - lb (Al/Cu)
◆
2.1.2 UTILITY SUPPLY CONNECTIONS
AND 22.0 L ONLY)
The utility supply connections for the block heater,
battery charger, and any other option is located in the
AC breaker distribution panel near the back of the
generator. Depending on the current rating of the ter-
minal block used, the connector tightening torque
values and the acceptable wire ranges are listed as
follows:
Connector Tightening
Current Rating
30 Amp Connectors 5.5 lb.-in. (0.6 Nm)
50 Amp Connectors 10.6 lb.-in. (1.2 Nm)
65 Amp Connectors 18.0 lb.-in. (2.0 Nm)
The current ratings are located directly on the cir-
cuit breaker. The above information is rated for
UL acceptance.
Remove fuses from the battery charger before
!
connecting starting batteries. Connect battery,
then replace charger fuses.
Wire Range
350 MCM - 1 AWG
2 AWG - 6 AWG
(18.0 L
Acceptable
Torque Wire Range
(1-2) 24-10 AWG (CU)
(1-2) 22-8 AWG (CU)
(1-2) 20-6 AWG (CU)
NOTE:
Section 2 — Installation
3.1 CONTROL CONSOLE
COMPONENTS
The PM-GC control module performs all of the gen-
erator control functions within the system. It controls
engine starting and stopping, engine speed, output
voltage and frequency, and monitors engine perform-
ance. It can communicate with remote devices via
communication ports. See Figure 1 for a view of the
operator panel.
The operator panel of the unit acts as the interface to
the user. By means of an optional backlit ¼ VGA
touchscreen display, the user can examine data mon-
itored by the unit. The keyswitch can be used to start
and stop the genset. The keyswitch allows the unit to
be put into one of three modes.
◆

3.1.1 OFF

In this mode, the generator will not start.
◆

3.1.2 MANUAL

In manual mode, the generator will start immediately.
Manual mode is for limited testing of the unit.
◆

3.1.3 AUTOMATIC

Automatic is the normal mode of operation.
The unit will start when the remote start contacts are
closed.
Figure 1 — Operator Panel
Generac
PM-GC
® Power Systems, Inc. 5