Generac 9227-2, 4678-1 owner manual Functional Tests Adjustments, Manual Operation

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Section 3 — Post Installation Start-Up Adjustments

Generac 100 Amp Transfer Switch

3.1FUNCTIONAL 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.

DANGER

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.

3.2MANUAL 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.

DANGER

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)

5 Generac® Power Systems, Inc.

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Contents Transfer Switch General Hazards Important Safety InstructionsTable of Contents Safety Rules Inside Front Cover-1 General InformationIntroduction Transfer Switch Ratings DecalTransfer Switch Enclosure Safe USE of Transfer SwitchMounting Connecting Power Source and Load LinesInstallation UnpackingTransfer Switch Interconnections Drawing No. C3921 Connecting Start Circuit WiresPost Installation Start-Up Adjustments Functional Tests AdjustmentsManual Operation Generator Tests Under Load Transfer Switch Voltage ChecksGenerac 100 Amp Transfer Switch Electrical Data DiagramTransfer Switch Drawing No. C3909-A Exploded Views and Parts ListsWarranty Warranty Schedule