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5 Generac
®
Power Systems, Inc.
3.1 FUNCTIONAL TESTS AND
ADJUSTMENTS
Following transfer switch installation and interconnec-
tion, inspect the entire installation carefully. A compe-
tent, qualified electrician should make the inspection.
The installation should comply strictly with all applica-
ble codes, standards, laws and regulations. All electri-
cal connections must be correct and in compliance with
applicable codes and standards.
Make sure the standby generator is ready. This
includes checking engine oil level, coolant level, fuel
supply, batteries and other items specified in the
Owner’s Manual for specific generators.
Complete all functional tests as outlined in the Post
Installation Start-Up Adjustments section. Do this
before placing the transfer switch into service.
Functional tests of the transfer switch include these
tests: (a) Manual Operation, (b) Voltage Checks and (c)
Electric Operation.
To avoid damaging the transfer switch, perform
functional test in the exact order given.
Before proceeding with functional tests, read and be
sure you understand all instructions in this section.
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 danger-
ous and possibly fatal electrical shock.
3.2 MANUAL OPERATION
Instructions for “V” type transfer switches: Test manu-
al operation as follows:
1. Check that the generator’s Auto-Off-Manual switch
has been set to the OFF position.
2. Turn Off the UTILITY power supply to the transfer
switch, using whatever means provided (such as the
UTILITY source main line circuit breaker).
3. Set the generator’s main circuit breaker to its Off or
OPEN position.
Failure to turn OFF all power voltage supplies to
the transfer switch before attempting manual
operation results in extremely hazardous and pos-
sibly fatal electrical shock.
4. Remove the manual transfer handle from the enclo-
sure.
5. Place open slot of the manual transfer handle on the
small tab of the transfer switch operating lever
(Figure 3.1).
6. Pull manual transfer handle downward. If handle is
down, LOAD is connected to STANDBY power
source. If handle is up, LOAD is connected to UTIL-
ITY power.
7. Move the transfer switch main contact to both posi-
tions several times. Leave the transfer switch in the
UTILITY position and connect LOAD to the UTILITY
power source (manual operation lever is up).
Figure 3.1 — Transfer Switch Operation (“V” Type)
DANGER
DANGER
!
Section 3 — Post Installation Start-Up Adjustments
Generac 100 Amp Transfer Switch