® POWER SYSTEMS, INC. Owner’s Manual GTS “W” Type Automatic Transfer Switch 200 Amp, 250 Volts Model 04635-0 This manual should remain with the unit.
IMPORTANT SAFETY INSTRUCTIONS ! ! SAVE THESE INSTRUCTIONS. Read the following information carefully before attempting to install, operate or service this equipment. Also read the instructions and information on tags, decals, and labels that may be affixed to the transfer switch. Replace any decal or label that is no longer legible.
Table of Contents • Because jewelry conducts electricity, wearing it may cause dangerous electrical shock. Remove all jewelry (such as rings, watches, bracelets, etc.) before working on this equipment. • If work must be done on this equipment while standing on metal or concrete, place insulative mats over a dry wood platform. Work on this equipment only while standing on such insulative mats. • Never work on this equipment while physically or mentally fatigued.
Section 1 — General Information Generac GTS “W” Type Transfer Switch 1.1 INTRODUCTION This manual has been prepared especially for the purpose of familiarizing personnel with the design, application, installation, operation and servicing of the applicable equipment. Read the manual carefully and comply with all instructions. This will help to prevent accidents or damage to equipment that might otherwise be caused by carelessness, incorrect application, or improper procedures.
Section 2 — Installation Generac GTS “W” Type Transfer Switch 2.1 INTRODUCTION TO INSTALLATION This equipment has been wired and tested at the factory. Installing the switch includes the following procedures: • • • • • • Mounting the enclosure. Connecting power source and load leads. Connecting the generator start circuit. Connecting any auxiliary contact (if needed) Installing/connecting any options and accessories. Testing functions. 2.2 UNPACKING Carefully unpack the transfer switch.
Section 2 — Installation Generac GTS “W” Type Transfer Switch 2.6 Use a torque wrench to tighten the conductors, being sure not to overtighten, or damage to the switch base could occur. If undertightened, a loose connection would result, causing excess heat which could damage the switch base. Connect power source load conductors to clearly marked transfer mechanism terminal lugs as follows ! 1. Connect UTILITY (NORMAL) power source cables to switch terminals N1, N2. 2.
Section 3 — Operation Generac GTS “W” Type Transfer Switch 3.1 FUNCTIONAL 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.
Section 3 — Operation Generac GTS “W” Type Transfer Switch Single-phase utility supply: Measure across ATS terminal lugs N1 and N2; N1 to NEUTRAL and N2 to NEUTRAL. When certain that UTILITY supply voltage is correct and compatible with transfer switch ratings, turn OFF the UTILITY supply to the transfer switch. On the generator panel, set the AUTO-OFFMANUAL switch to MANUAL position. The generator should crank and start. Let the generator stabilize and warm up at noload for at least five minutes.
Section 3 — Operation Generac GTS “W” Type Transfer Switch 3.4 GENERATOR TESTS UNDER LOAD 1. Set the generator's main circuit breaker to its OFF or OPEN position. 2. Manually actuate the transfer switch main contacts to their EMERGENCY (STANDBY) position. Refer to Manual Operation. 3. To start the generator, set the AUTO-OFFMANUAL switch to MANUAL. When engine starts, let it stabilize for a few minutes. 4. Turn the generator's main circuit breaker to its ON or CLOSED position.
Section 4 — Mounting Dimensions Generac GTS “W” Type Transfer Switch 8 Generac® Power Systems, Inc. Note: Diameter of Mounting holes (A) is 6.35 MM Values are in Millimeters 180 612 A A 430 514 A A 490 Mounting Dimensions – Drawing No.
TRANSFER SWITCH SWITCH TYPE, SPST ELECTRICAL RATINGS, 2A @ 250Vac MIN. - OPEN SWITCH TO TEST - REMOTE TEST SWITCH (OPTIONAL) UTILITY 1 UTILITY 2 LOAD 1 B CUSTOMER LOAD T1 T2 T3 N1 N2 N3 UTILITY SUPPLY 194 NEUTRAL LUG POWER LEADS AND TRANSFER SWITCH LEADS MUST BE RUN IN TWO DIFFERENT CONDUITS.
10 Generac® Power Systems, Inc. TRANSFER SWITCH SWITCH TYPE, SPST ELECTRICAL RATINGS, 2A @ 250Vac MIN. - OPEN SWITCH TO TEST - REMOTE TEST SWITCH (OPTIONAL) UTILITY 1 UTILITY 2 LOAD 1 CUSTOMER LOAD T2 E2 E1 T1 N2 N1 UTILITY SUPPLY NEUTRAL LUG POWER LEADS AND TRANSFER SWITCH LEADS MUST BE RUN IN TWO DIFFERENT CONDUITS.
Section 5 — Electrical Data Generac GTS “W” Type Transfer Switch Wiring Diagram - 200 Amp, 2-pole Switch – Drawing No. 0D3819 Generac® Power Systems, Inc.
Section 6 — Exploded Views and Parts List Generac GTS “W” Type Transfer Switch Transfer Switch Assembly (2-pole) – Drawing No. 0D4406-E 12 Generac® Power Systems, Inc.
Section 6 — Exploded Views and Parts List Generac GTS “W” Type Transfer Switch Transfer Switch Assembly (2-pole) – Drawing No. 0D4406-E ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 27 28 29 30 31 32 33 34 35 36 37* 38 PART NO.
Section 7 — Warranty Generac GTS “W” Type Transfer Switch GENERAC POWER SYSTEMS STANDARD TWO-YEAR LIMITED WARRANTY FOR GENERAC TRANSFER SWITCH SYSTEMS For a period of 2 (two) years from the date of sale, Generac Power Systems, Inc.
