System Functional Tests; Introduction; Manual Transfer Switch Operation; Electrical Checks - Generac Power Systems 10 kW LP Repair Manual

sEctioN 5.1

sYstEm fuNctioNal tEsts

introduction

Following home standby electric system installation
and periodically thereafter, the system should be
tested Functional tests of the system include the
following:

• Manual transfer switch operation.

• System voltage tests.
• Generator Tests Under Load.
• Testing automatic operation.
Before proceeding with functional tests, read instruc-
tions and information on tags or decals affixed to the
generator and transfer switch. Perform all tests in the
exact order given in this section.
manual tranSFer SWitch operation
"W/V-TYPE" TRANSFER SWITCHES:
1. On the generator panel, set the AUTO-OFF-MANUAL
switch to OFF.
2. Turn OFF the utility power supply to the transfer switch
using whatever means provided (such as a "Utility" main
line circuit breaker).
3. Set the generator main line circuit breaker to OFF
(or open).
*
DaNGEr: BE surE to turN off all
PoWEr VoltaGE suPPliEs to tHE
traNsfEr sWitcH BEforE attEmPtiNG
maNual oPEratioN. failurE to turN
off PoWEr VoltaGE suPPliEs to
tHE traNsfEr sWitcH maY rEsult
LOAD CONNECTED TO
UTILITY POWER SOURCE
Page 148
MANUAL
TRANSFER
HANDLE
TRANSFER
SWITCH
OPERATING
LEVER
Figure 1. Manual Operation "V-Type" Switch
Part 5
iN DaNGErous aND PossiBlY lEtHal
ElEctrical sHocK.
4. Remove the manual transfer handle from the enclosure.
5. Place open end of the manual transfer handle over
transfer switch operating lever.
6. To connect LOAD terminal lugs to the utility power
source, move, the handle upward.
7. To connect LOAD terminals to the standby power source,
move the handle downward.
8. Actuate the switch to UTILITY and to MANUAL several
times. Make sure no evidence of binding or interference
is felt.
9. When satisfied that manual transfer switch operation
is correct, actuate the main contacts to their UTILITY
position (Load connected to the utility power supply).

electrical checkS

Complete electrical checks as follows:
1. Set the generator main circuit breaker to its OFF (or
open) position.
2. Set the generator AUTO-OFF-MANUAL switch to the
OFF position.
3. Turn off all loads connected to the transfer switch
Terminals T1 and T2.
4. Turn on the utility power supply to the transfer switch
using the means provided (such as a utility main line
circuit breaker).
LOAD CONNECTED TO
STANDBY POWER SOURCE
OPERATIONAL TESTS
AND ADJUSTMENTS
TRANSFER
SWITCH
OPERATING
LEVER
MANUAL
TRANSFER
HANDLE