Page 2 - This symbol points out potential explosion hazard.; GENERAL HAZARDS; DANGER; Important Safety Instructions
Generac ® Power Systems, Inc. Generac cannot possibly anticipate every possible circumstance that might involve a hazard. The warn-ings in this manual, and on tags and decalsaffixed to the unit are, therefore, not all-inclusive. Ifyou use a procedure, work method or operating tech-nique Generac does...
Page 3 - Table of Contents
Table of Contents Generac ® Power Systems, Inc. 1 Safety Rules..........................................Inside Front CoverSection 1 — General Information ..................................2 1.1 Introduction ............................................................2 1.2 Equipment Description ........
Page 4 - Section 1 — General Information; Generac “V” Type and “Y” Type Transfer Switch; INTRODUCTION
2 Generac ® Power Systems, Inc. Section 1 — General Information Generac “V” Type and “Y” Type Transfer Switch 1.1 INTRODUCTION This manual has been prepared especially for thepurpose of familiarizing personnel with the design,application, installation, operation and servicing ofthe applicable equipm...
Page 5 - INTRODUCTION TO INSTALLATION; Section 2 — Installation; Figure 2.1 — Mounting Dimensions for Enclosures
Generac ® Power Systems, Inc. 3 2.1 INTRODUCTION TO INSTALLATION This equipment has been wired and tested at the fac-tory. Installing the switch includes the following pro-cedures: • Mounting the enclosure.• Connecting power source and load leads.• Connecting the generator start circuit.• Installing...
Page 6 - Mechanism; Tighten terminal lugs to the following torques:
4 Generac ® Power Systems, Inc. 2.4.1 2-POLE MECHANISMS These switches (Figures 2.2 and 2.3) are used with asingle phase system, when the single phase NEU-TRAL line is to be connected to a Neutral Lug and isnot to be switched. Figure 2.2 — 100 Amp 2-pole Transfer Mechanism Figure 2.3 — 200 Amp 2-pol...
Page 7 - AUXILIARY CONTACTS; Figure 2.6 — Auxiliary Contact Schematic; OPTIONAL ACCESSORIES; MAXIMUM WIRE LENGTH; Switch Position
Generac ® Power Systems, Inc. 5 Section 2 — Installation Generac “V” Type and “Y” Type Transfer Switch 2.5 CONNECTING START CIRCUITWIRES Control system interconnections (Figure 2.5) consistof UTILITY 1 and 2, LOAD 1 and 2; and leads 23 and194. Control system interconnection leads must berun in a con...
Page 8 - FUNCTIONAL TESTS; Figure 3.1 — Transfer Switch Operation; Section 3 — Operation
6 Generac ® Power Systems, Inc. 3.1 FUNCTIONAL TESTS ANDADJUSTMENTS Following transfer switch installation and intercon-nection, inspect the entire installation carefully. Acompetent, qualified electrician should make theinspection. The installation should comply strictly with all appli-cable codes,...
Page 9 - Figure 3.2 — Manual Operation of “Y” Type; VOLTAGE CHECKS
Generac ® Power Systems, Inc. 7 3.3.1 “Y” TYPE TRANSFER SWITCHES A manual handle was shipped with the transferswitch. Test manual operation for “Y” type transferswitches as follows (Figure 3.2): 1. Check that the generator's Auto/Off/Manualswitch has been set to OFF position. 2. Attach the square op...
Page 10 - GENERATOR TESTS UNDER LOAD
8 Generac ® Power Systems, Inc. 3.5 GENERATOR TESTS UNDER LOAD 1. Set the generator's main circuit breaker to itsOFF or OPEN position. 2. Manually actuate the transfer switch main con-tacts to their STANDBY position. 3. To start the generator, set the Auto/Off/Manualswitch to MANUAL. When engine sta...
Page 11 - Section 4 — Notes
Generac ® Power Systems, Inc. 9 Section 4 — Notes Generac “V” Type and “Y” Type Transfer Switch
Page 12 - Section 5 — Electrical Schematics and Wiring Diagrams
- O PEN S WIT C H T O TE S T - 2A @ 2 50 Vac MIN . SWITCH TYPE , SPS T ELECTRICAL RATINGS , U TILITY 1 U TILITY 2 1 94 C B 1 NE U TRA L CO NNE C TI O N N1 N2 T1 T2T E1 E2E NE U TRA L L UG TRAN S FE R S WIT CH U TILIT Y SU PPL Y L O A D CUS T O ME R 23 LOAD 2 UTILITY 2 UTILITY 1 A C G ENERAT OR CO NT...
Page 16 - Section 6 — Exploded Views and Parts Lists
15 2 3 4 10 11 1 36 5 6 7 3 8 14 13 33 16 18 20 22 33 32 34 35 19 23 26 33 9 32 17 31 10 12 12 10 37 DECAL DECAL DECAL DECAL 42 21 39 38 40 41 43 24 25 44 Section 6 — Exploded Views and Parts Lists Transfer Switch - Drawing No. 078589-H 14 Generac ® Power Systems, Inc.
Page 17 - ITEM
Generac ® Power Systems, Inc. 15 ITEM PART NO. QTY. DESCRIPTION 1 62642 1 SWITCH TRANSFER-#79953 62677 1 SWITCH TRANSFER-#79953-A 64198 1 SWITCH TRANSFER-#79953-B 2 C2267 4 M5-.8 x 12 SWAGEFORM HHC 3 49226 6 WASHER, LOCK-M5 4 23897 4 WASHER, FLAT-M5 5 57073 1 LUG, NEUTRAL 6 27628 1 NUT, HEX .375-16 ...
Page 20 - Section 7 — Warranty; GENERAC POWER SYSTEMS STANDARD TWO-YEAR LIMITED WARRANTY
Part No. 078590 Revision D (05/29/02) Printed in U.S.A. Section 7 — Warranty Generac “V” Type and “Y” Type Transfer Switch GENERAC POWER SYSTEMS STANDARD TWO-YEAR LIMITED WARRANTY FOR GENERAC TRANSFER SWITCH SYSTEMS NOTE: ALL UNITS MUST HAVE A START-UP INSPECTION PERFORMED BY AN AUTHORIZED GENERAC D...