Time Delay Neutral On-Off Switch; Optional Accessories; Section 3 - Operation; Functional Tests & Adjustments - Generac Power Systems GTS "W" Owner's Manual

Contact operation is shown in the following chart:
Common to Normally Open
Common to Normally Closed
Auxiliary Contacts are rated 10 amps at 125 or 250
volts AC. DO NOT EXCEED THE RATED VOLTAGE
AND CURRENT OF THE CONTACTS.
2.7 TIME DELAY NEUTRAL ON-OFF
SWITCH
The Time Delay Neutral feature extends the time that
the main contacts normally disconnect. By permitting
the LOAD to remain disconnected from both power
sources for a fixed time setting, residual voltages gener-
ated by heavy inductive loads will decay to a safe level
before reconnecting. This provides some protection
against nuisances such as blown fuses or circuit break-
ers that otherwise might occur during a rapid transfer
of motor and other heavy inductive loads.
Units with the Time Delay Neutral feature are equipped
with a Time Delay On/Off switch. To eliminate the time
delay at neutral during a transfer action, set the switch
to OFF .
Figure 2.6 — Time Delay Neutral Switch
2.8

OPTIONAL ACCESSORIES

Note any optional accessories that may be installed on
the transfer switch or are to be installed in the standby
electric system in conjunction with the switch.
Complete the necessary connections for these acces-
sories.
6 Generac ® Power Systems, Inc.
Section 3 — Operation
Generac GTS "W" Type Transfer Switch
Switch Position
Utility Standby
Closed
Open Closed
NOTE:
3.1 FUNCTIONAL TESTS AND
ADJUSTMENTS
Following transfer switch installation and interconnec-
Open
tion, inspect the entire installation carefully. A compe-
tent, qualified electrician should inspect it. The instal-
lation should comply strictly with all applicable codes,
standards, and regulations.
the installation is proper and correct, complete a func-
tional test of the system. Perform functional tests in the
exact order presented in this manual, or you could
damage the switch.
IMPORTANT: Before proceeding with functional tests,
read and make sure you understand all instructions
and information in this section. Also read the informa-
tion and instructions of labels and decals affixed to the
switch. Note any options or accessories that might be
installed and review their operation.
3.2

MANUAL OPERATION

Do NOT manually transfer under load. discon-
!
nect transfer switch from all power sources by
approved means, such as a main circuit
breaker(s).
A manual HANDLE is shipped with the transfer switch.
Manual operation must be checked BEFORE the trans-
fer switch is operated electrically. To check manual
operation, proceed as follows:
1. In the
Maintenance Disconnect switch to MANUAL. This
prevents the generator from starting automatically
as soon as you turn OFF the UTILITY power source.
2. If so equipped, turn the generator's Manual-Off-Auto
switch to OFF .
3. Turn OFF both NORMAL and STANDBY power sup-
plies to the transfer switch, with whatever means
provided (such as the main line circuit breakers).
4. Note position of transfer mechanism main contacts
by observing display windows in "A" and "B" in
Figure 3.1 as follows:
• Window "A" ON, Window "B" OFF - LOAD terminals
(T1, T2, T3) are connected to NORMAL terminals
(N1, N2, N3).
• Window "A" OFF , Window "B" ON - LOAD terminals
(T1, T2, T3) are connected to STANDBY terminals
(E1, E2, E3).
Do not use excessive force when operating the
!
transfer switch manually or you could damage
the manual handle.
When absolutely certain
DANGER
transfer switch enclosure, set the