Section 3 — Operation
Generac GTS “W” Type Transfer Switch
3.1FUNCTIONAL TESTS AND
ADJUSTMENTS
Following transfer switch installation and interconnection, inspect the entire installation carefully. A competent, qualified electrician should inspect it. The installation should comply strictly with all applicable codes, standards, and regulations. When absolutely certain the installation is proper and correct, 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 information in this section is 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.
3.2MANUAL OPERATION
DANGER
Do NOT manually transfer under load.
!Disconnect 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 transfer switch is operated electrically. To check manual operation, proceed as follows:
1.Turn the generator’s
2.Turn OFF both UTILITY and EMERGENCY power supplies to the transfer switch, with whatever means provided (such as the main line circuit breakers).
3.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) are connected to UTILITY terminals (N1, N2).
Figure 3.1 — Actuating Transfer Switch
Generac® Power Systems, Inc. 5
