16 Generac
®
Power Systems, Inc.
3.6
ENGINE HEATER
This Generac standby generator comes equipped
with a block heater (Figure 3.3), similar to the block
heaters used in automotive applications. The block
heater is wired to a grounded plug.
Figure 3.3 - Engine Block Heater
Refer to applicable wiring diagram(s) and electrical
schematic(s) at back of manual for wiring connec-
tions. Customer supplies a 120V 15A Utility fed cir-
cuit for the block heater.
3.7
FUNCTIONAL TESTS AND
ADJUSTMENTS
Following transfer switch installation and intercon-
nection, inspect the entire installation carefully. A
competent, qualified electrician should make the
inspection.
The installation should comply strictly with all appli-
cable codes, standards, laws and regulations. All
electrical connections must be correct an in compli-
ance with applicable codes and standards.
Be sure the generator is ready. This includes check-
ing engine oil level, coolant level, fuel supply, batter-
ies and other items specified in the MAINTENANCE
section for the engine.
Complete all functional tests as outlined in Section
3.8.
3.8
FUNCTIONAL TESTS
Following transfer switch installation, the entire
standby electrical system should be inspected and
tested. Have all necessary adjustments completed at
this time. Functional tests of the transfer switch
include these tests: (a) Manual Operation, (b) Voltage
Checks and (c) Manual Tests Under Load.
To avoid damaging the transfer switch, per-
form functional tests in the exact order given.
Before proceeding with functional tests, read and be
sure all instructions in this section are understood.
Also, read the instructions and information on tags
and decals affixed to the transfer switch. Note any
options and accessories that might be installed or
provided with the switch and review their operation.
Do not attempt manual operation of the
transfer switch until after all power voltage
supplies to the switch have been turned off.
Failure to turn off power voltage supplies
may result in dangerous and possible fatal
electrical shock.
3.8.1 MANUAL OPERATION
The pre-packaged transfer switch has a W-type trans-
fer mechanism.
3.9
W-TYPE TRANSFER SWITCH
3.9.1 FUNCTIONAL TESTS AND
ADJUSTMENTS
Following transfer switch installation and intercon-
nection, inspect the entire installation carefully. A
competent, qualified electrician should inspect it.
The installation should comply strictly with all appli-
cable codes, standards, and regulations. When
absolutely certain the installation is proper and cor-
rect, complete a functional test of the system.
Perform functional tests in the exact order
presented in this manual, or the switch could
be damaged.
IMPORTANT: Before proceeding with functional
tests, read and make sure all instructions and infor-
mation in this section are understood. Also read the
information and instructions of labels and decals
affixed to the switch. Note any options or accessories
that might be installed and review their operation.
!
DANGER
!
Section 3 — Operation
Generac Liquid-cooled 20 kW Generator