Generac 14-circuit, 100A RTSP100A1S Transfer Switch Manual

Generac 14-circuit, 100A RTSP100A1S Transfer Switch Manual

INSTALLATION GUIDE For 100 Amp Automatic Transfer Switch/Load Center Models: 8, 10, 12, 14 and 16 Circuit.

Installed with 8, 10, 12, 14, 16 and 17kW Generators.

This Automatic Transfer Switch with built-in Load Center includes an Express Install Kit.

• Saves on installation time and cost, in many cases up to 50% compared to traditional transfer switch installations.

C LISTED US

• Automatically supplies electricity to selected critical circuits.

• Can be installed prior to, or along with generator installation.

This manual should remain with the unit.

Residential Transfer Switch Installation Guide

PLEASE NOTE:

This installation guide should be used in conjunction with the “Installation and Owner’s Manual” that is fur nished with the Air-cooled Standby Generator. Please review both manuals prior to installation of the generator and transfer switch. This Automatic Transfer Switch/Load Center is not intended for use with the Liquid-cooled Generator product line. This unit is not compatible with other generator manufacturer’s products.

INTRODUCTION

Thank you for purchasing this 100 Amp Automatic Transfer Switch/Load Center with Express Install Kit. The Express Install Kit includes: • 30 foot, five foot, and two foot pre-wired conduits for making all required wiring runs.

• An outdoor junction box for making connections between outdoor and indoor pre-wired conduits.

• UL listed wire nuts for reconnecting emergency circuits within the main distribution panel.

The 100 Amp Automatic Transfer Switch/Load Center with Express Install Kit can be installed along with a 8, 10, 12, 14, 16 or 17kW Air-cooled Standby Generator, or can be used to pre-wire a home or small business in advance of generator installation. In either case, the Express Install Kit saves installation time and cost, since the majority of labor involved in installing a standby power system is in wiring the generator, automatic transfer switch and emergency circuit subpanel.

Four commonly used safety symbols accompany the DANGER, WARNING and CAUTION blocks. The type of information each indicates follows:

DANGER

After this heading, read instructions that, if not strictly complied with, will result in serious personal injury, including death, and/or severe property damage.

After this heading, read instructions that, if not strictly complied with, may result in serious personal injury and/or property damage.

After this heading, read instructions that, if not strictly complied with, could result in damage to equipment and/or property.

NOTE: After this heading, read explanatory statements that require special emphasis.

This symbol points out important safety information that, if not followed, could endanger personal safety and/or property.

This symbol points out potential explosion hazard.This symbol points out potential fire hazard.

This symbol points out potential electrical shock hazard.

SAVE THESE INSTRUCTIONS – The manufacturer

suggests that these rules for safe operation be copied and posted near the unit’s installation site. Safety should be stressed to all operators and potential operators of this equipment.

The manufacturer cannot anticipate every possible circum stance that might involve a hazard. The warnings in this manual, and on tags and decals affixed to the unit are there fore, not all-inclusive. If using a procedure, work method or operating technique the manufacturer does not specifically recommend, ensure that it is safe for all personnel. Also make sure the procedure, work method or operating tech nique chosen does not render the equipment unsafe.



ELECTRICAL HAZARDS

 • Utility power delivers extremely high and dangerous volt ages to the transfer switch as does the standby generator when it is in operation. • Do not handle any kind of electrical device while standing in water, while barefoot, or while hands or feet are wet.

DANGEROUS ELECTRICAL SHOCK MAY RESULT.

• In case of accident caused by electric shock, immediately shut down the source of electrical power. If this is not possible, attempt to free the victim from the live conduc tor. AVOID DIRECT CONTACT WITH THE VICTIM. Use a non-conducting implement, such as a rope or board, to free the victim from the live conductor. If the victim is unconscious, apply first aid and get immediate medical help.

• Never wear jewelry when working on this equipment. Jewelry can conduct electricity resulting in electric shock, or may get caught in moving components causing injury.

1

Residential Transfer Switch Installation Guide

100 Amp Automatic Transfer Switch/Load Center with Express Install Kit

KIT INCLUDES:

THE OUTDOOR CONNECTION BOX WITH FIVE FOOT PRE-WIRED LIQUID TIGHT CONDUIT B

Mounted outside the home or business nearest the planned generator location. This is for connection to generator controls and main line circuit breaker.

C 30 FOOT FLEXIBLE CONDUIT

Pre-wired from the automatic transfer switch with built in emergency load center for connection to the outdoor connection box.

D E PRE-WIRED AUTOMATIC TRANSFER SWITCH AND EMERGENCY LOAD CENTER

Installed within one (1) foot of the building’s main distri bution panel. This transfer switch provides smooth and safe transition between utility and generator power.

F TWO FOOT PRE-WIRED CONDUIT FOR EASY CONNECTION TO THE BUILDING’S MAIN DISTRIBUTION PANEL G

UL LISTED WIRE NUTS (not shown)

TOOLS REQUIRED:

Drill, drill bits, hole saw (type and length will be deter mined by the materials to be drilled and cut), open-end wrenches or adjustable wrenches, socket wrenches or nut drivers, standard and Phillips screwdrivers, sledge hammer, level, pencil, channel-lock pliers, spade shov el, rake and safety goggles.

A

Designed with installation cost savings in mind!

B F D E C ITEMS TO BE PURCHASED OR SUPPLIED FOR COMPLETE INSTALLATION:

; 70 amp or 40 amp (7kW) double pole circuit breaker (must be the same type as in the main electrical distri bution panel) ; Ground rod with grounding strap (for generator installation) ; Padlock to lock outdoor connection box ; Crushed stone or pea gravel (approximately 10-12 cubic feet) (for generator installation) ; Black poly-film or other vegetation blocking fabric (for generator installation) ; Silicone caulk ; Fasteners (to mount outdoor connection box and automatic transfer switch) ; Battery - 12V automotive type, group 26R, negative ground, 350 CCA (8kW), 525 CCA (10, 12, 14, 16, 17 and 20kW) minimum capacity (required as part of generator installation).

2

Residential Transfer Switch Installation Guide Site Preparation and Standby Generator Placement 1 2 3 Crushed Stone or Pea Gravel 4 5 1. PLAN THE LOCATION OF THE GENERATOR.

NOTE:

Do not place the generator directly under a window. Select an area outside of the home or business nearest the incoming gas service. Determine where the genera tor will be placed outside of the building. Arrange for fuel piping with shut-off valve to be run to this location. Keep in mind that the manufacturer recommends placement no closer than 18 inches to any structure. Local codes may dictate placement farther from a structure. If facing the unit from the front, the generator's fuel inlet is located at the rear lower right of the unit.

2.

etation to a depth of five inches. This includes the dis tance the generator should be set away from a structure (18 inches) and six inches beyond the width and length of the generator mounting pad (49" L x 25" W). 3. Lay black poly-film to cover the area. 4. Fill the area to ground level with pea gravel or crushed stone.

5. Drive an eight foot grounding rod into the ground to grade. Make sure grounding rod and strap are not exposed above ground level. (NEC code applies to grounding method.)

6.

the building from inside to outside. When certain there is clearance on each side of the wall, drill a small pilot hole through the wall to mark the location. Drill a 1-3/4” diameter hole through the sheathing and siding with hole saw.

6 Drill Hole Through House 1-3/4” Diameter Hole

7. While adhering to all local electrical codes, route the 30 foot conduit along ceiling/floor joists and wall studs to the location where the conduit will pass through the wall to the exterior of the building.

7 Drill Pass Through Hole 1-3/4” Diameter Hole 3

Residential Transfer Switch Installation Guide

8. From inside the building, feed the end of the 30-foot conduit (INCLUDED and pre-wired from transfer switch) through the wall to the outside.

8 Feed Conduit and Wires Silicone Caulk The outer diameter of the conduit connector is 1-11/16”

9. Remove the threaded lock nut from the conduit coupling.

The outer diameter of the threaded end is 15/16 inches.

The outdoor connection box must be locked to ensure safety and to discourage tampering.

11. Locate automatic transfer switch with built-in emer gency load center in close proximity to the main distribution panel. The transfer switch can be located to the left or right of the main distribution panel. Two (2) feet is the suggested distance (see Figure 11). The transfer switch may be located a different distance from the main panel depending on available mounting area. Using the two (2) foot conduit connected straight across to the main panel is another option. Always adhere to local electrical codes during installation. Hold transfer switch against the mounting surface. Level the transfer switch and mark the mounting holes. Drill the appropriate size pilot holes. Mount transfer switch with built-in load center to mounting surface with appropri ate fasteners.

11 Mounting Automatic Transfer Switch 9 Threaded Lock Nut 10

10. Lift cover. Remove internal cover plate screw and internal cover. Remove the knock out in the lower right corner of the external connection box. From the rear of the connec tion box, feed wires, 4-pin and 2-pin plugs into box. Slip the lock nut over wires and plugs and tighten securely onto con duit coupling. Using appropri ate fasteners, mount external connection box over pre-drilled hole to fully conceal the hole. Seal around the hole and conduit with silicone caulk from both the inside and out side of the building. Also, caulk around the sides and top of the box to seal the edges to the siding or wall. Connect wires to lugs; black to black, white to white, and red to red. Torque nuts to 20 in/lbs. Snap together the 4-pin and 2-pin plug connector. Loosen nut from grounding lug and attach ground wire (green) from conduit. Reinstall nut and tighten to 45 in/lbs. Reinstall internal cover plate and screw. Close cover and install lock. This wiring is complete.

4 Two (2) Feet Suggested Distance

The manufacturer recommends that a licensed elec electricity perform the procedures in Sections 12 and 13.

Switch service main circuit breaker to the OFF (OPEN) position prior to removal of cover or removal of any wiring of the main electrical distribution panel. The wires connected to the service main cir OFF cuit breaker remain LIVE or HOT. Avoid contact with these wires and the service main circuit breaker con nection lugs.

Residential Transfer Switch Installation Guide NOTE: Balance must be maintained when moving circuit loca tions from main electrical distribution panel to emergency load center. Circuit breaker positions alternate buss bars vertically. Circuits sharing a neutral wire should either be moved together to adjacent positions in emergency load center or not moved. If unsure of the proper procedure or if the installation differs from that described in this guide, consult a licensed professional at this time.

12a. Remove the main electrical distribution panel cover. Remove appropriate size knockout from the bottom or side of the main panel. (A two foot flexible conduit is pre-wired from the transfer switch with built-in load center). Remove threaded lock nut from conduit cou pling. Feed all wires through knockout into main panel. Slip lock nut over wires and tighten securely onto con duit coupling.

12a Connection of Emergency Circuits Models

Circuits 50A, 240V 40A, 240V 30A, 240V 20A, 240V 20A, 120V 15A, 120V

8 Circuit 10 Circuit 12 Circuit 14 Circuit 16 Circuit

1 1 5 1 1 3 3

12b Connection of Emergency Circuits

1 1 3 5 1 1 4 1 4 1 1 1 5 5

NOTE: Circuits to be moved must be protected by same size breaker. For example, a 15 amp 120 volt circuit in emer gency load center will replace a 15 amp 120 volt circuit in main electrical distribution panel.

12b. In the main panel, remove the black (hot) wire from the circuit breaker that protects a circuit to be powered in the event of a power failure. Wire nut the black wire to the matching circuit lead wire from the emergency circuit breaker in the load center in the transfer switch. (All circuit wires are color coded and labeled for easy identification). UL listed wire locknuts are included in installation kit. Trace each black (hot) wire connected and wire nut the white (neutral) wire from the same Romex cable (circuit) to the matching circuit number on the white (neutral) wire from the emergency load center. Repeat for each circuit. Repeat this process with the remaining circuits to be powered by the gen erator.

NOTE: Both grounded and ungrounded conductors must be moved to the emergency panel and connected to the new wiring from the emergency panel using supplied wire nuts. UL approved wire nuts are included with installation kit.

13. Install the 70 amp double pole circuit breaker; 10, 12, 14, 16, 17 and 20kW units or the 40 amp double pole breaker; 8kW units (purchased or supplied separately), into main electrical distribution panel. This circuit breaker must be compatible with the main electrical distribution panel. It may be necessary to reposition remaining circuit breakers or remove circuit breakers that have been disconnected to accommodate the insertion of the 70 amp or 40 amp double pole circuit breaker. Connect white wire to the main distribution panel neutral bar. Connect solid green wire to main electrical panel ground bar. Connect the black and red wires to the 70 amp or 40 amp double pole circuit breaker. Reinstall the main distribution panel cover.

13 Install 70 Amp Circuit Breaker

70

5

Residential Transfer Switch Installation Guide

THE AUTOMATIC TRANSFER SWITCH/LOAD CENTER IS NOW INSTALLED!

If a generator is being installed at this time, proceed to step 19. If a generator will not be installed at this time, perform steps 14 through 17 to complete the pre-wiring project.

14. Open the outdoor connection box and unplug the 4-pin and 2-pin connector. Remove the black, white, red, and green wires that lead from the five foot pre-wired conduit. Make sure the mating wires from the 30 foot conduit are on the connection box terminal lugs (or ground screw), re-install all washers and nuts and secure them in place.

15. Remove the lock nut holding the five foot pre-wired conduit coupling to the outdoor connection box. Slip the lock nut over the wires and plug, then remove the conduit from the connection box. Use a knockout plug to close off the opening where the conduit was removed.

18. Place the generator and mounting pad in the location prepared in steps one through five.

18 19

The external connection box must be locked to ensure safety and to discourage tampering.

16. For pre-existing buildings, switch the service main circuit breaker back on to provide utility power to the building.

17. Save the five foot pre-wired conduit for re-installation at time of generator installation. At that time, re-install the conduit by reversing steps 14 and 15. The ground ing strap will also be installed with the generator. Save this guide for reference at time of generator installa tion.

DANGER

Be sure the service main circuit breaker is switched

OFF at time of generator installation.

This completes the pre-wiring portion of the 100 Amp Automatic Transfer Switch/Load Center Installation. Proceed with step 18 for generator installation.

19. Attach one end of the grounding strap (No. 12 AWG stranded copper wire) to grounding rod, and the other end to the grounding lug (located at rear corner of unit). Make sure the grounding rod and strap are not exposed above ground level (NEC code applies to grounding method).

NOTE: The generator mode switch should be placed in the OFF position. Generator main line circuit breaker should be switched to the OFF or OPEN position.

20. Access wiring connections for installation of five foot harness at the generator. To gain access to wiring con nections and the circuit breaker you must remove the cover plate (black) over the control module. Remove the two screws retaining the cover plate. Lift the cover plate up and towards the front of the generator to remove.

20 Connect Five Foot Conduit to Generator 6

Residential Transfer Switch Installation Guide

Remove the small black cap (covering 1-1/16” diame ter hole) from back of enclosure. Remove threaded lock nut from conduit coupling (with 90° elbow) and wires. Feed wires into 1-1/16” diameter hole. Place threaded lock nut over wires and onto conduit coupling. Tighten securely with screwdriver and hammer to ensure lock nut is tight. Connect power leads (red & black) to the circuit breaker lugs. Connect the neutral wire (white) to terminal connection (NEUTRAL). Connect ground wire (green) to grounding bolt with star washer below all ground wire lugs. Tighten securely ensuring the star washer makes good contact with metal base plate. Connect sensing wires to terminal strip as follows: Blue - N1, Yellow - N2, Brown - 23 and Orange - 194.

FUEL HOOKUP AND CHECK FOR LEAKS

21a.

Make the connection between the rigid fuel piping and the generator using the supplied threaded flexible fuel line. Use a pipe sealant suitable for gaseous fuel connections. Check connections for leaks by opening manual fuel shut-off valve and swab, or spray, con nections with soapy water. If a leak exists, the area will bubble with the presence of the soapy water.

One (1) Foot Flexible Fuel Line 21

21b. If a leak is located, shut off fuel and disconnect flex ible piping. Dry the threaded ends and reapply an adequate amount of pipe sealant. Reconnect flexible fuel line, open fuel supply and recheck for leaks. If leak still exists, repeat step 21b.

22. Follow all generator installation and setup instructions in the Installation and Owner’s Manual provided with the generator. During testing performed in Section 2 of the generator Installation and Owner’s Manual, utility power supply to the Automatic Transfer Switch/Load Center can be controlled using the 40 or 70 amp feeder circuit breaker located in the main distribution panel.

Grounding Lug 19 7

Residential Transfer Switch Installation Guide Installation Drawing 0H0258-A 8

Residential Transfer Switch Installation Guide Installation Drawing 0H0258-A 9

Residential Transfer Switch Installation Guide Installation Drawing 0G8573-A

Residential Transfer Switch Installation Guide Electrical Schematic - Drawing 0G7959-A

Residential Transfer Switch Installation Guide Wiring Diagram - Drawing 0G7958-A 12

Residential Transfer Switch Installation Guide Wiring Diagram - Drawing 0G7958-A

Residential Transfer Switch Installation Guide Load Center Exploded View - Drawing 0G8786-D 14

ITEM PART NO. QTY. DESCRIPTION 1 2 3 0G80700ST14 0G81010ST14 0G81020ST14 0G81030ST14 0G81040ST14 0G81060ST14 0C2237 3A 077220 3B 077220A 4 074908 5 6 7 024912 0A1658 063617 8 0E7889A 0E7889 0F9213 9 0A1495 10 0A1661 11 - 12 13 14 081108 0G8095AST14 0G81300ST14 15 0F4790 16 - 17 18 19 022717A 0E6155 0G8233A 20 0G8138 0G8139 0G8140 0G7955 0G8141

Residential Transfer Switch Installation Guide Load Center Exploded View - Drawing 0G8786-D

ITEM PART NO. QTY. DESCRIPTION 21 22 23 24 26 27 28 074138 0H0090A 077033 0D4698 - - 0A7215 - - 066849 0G7954A 0G7954B 0G7954C 29 0D2572 30 073590A 31 0G8487 32 33 34 35 36 37 38 39 0E7888 0E7888A 0E7888B 0E7888C 0E7888D 0E7888E 0G80860ST14 0G7951 0G7952 0G7953 A/R A/R A/R A/R A/R A/R 1 1 1 1 3 6 6 1 - LUG QUICK DISCONNECT NI-S 10X45 DEG BRASS / TIN SCREW PPHM #10-32X5/16 SEMS SC LUG SLDLSS 1/0-#14X9/16 AL/CU BLOCK TERM 20A 6 X 3 X 1100V 10 - SCREW SW 1/4"-20 X 5/8” WITH WASHER 2 SCREW HHTT M5-0.8 X 16 (8, 10, 12, 14, 16 CIRCUIT) 1 1 1 1 3 1 HARNESS LOAD CTR INT.CONN 8-16 (NOT SHOWN) HARNESS LOAD CTR INT.CONN T1 (NOT SHOWN) HARNESS LOAD CTR INT.CONN T2 (NOT SHOWN) FUSEBLOCK 30A 600V 3POS W/SQ FUSE 5A BATTERY CHARGER ASSY 8 10 12 14 16 CIR CIR BRKR 20A 2P 1 1 1 CIR BRKR 30A 2P 1 1 1 CIR BRKR 15A 1P 5 3 5 4 5 CIR BRKR 20A 1P 1 3 3 4 5 CIR BRKR 40A 2P 1 1 1 CIR BRKR 50A 2P 1 1 HARNESS ENTRY COVER GRAY HARN GTS-EXT CONN BOX 8KW HARN GTS-EXT CONN BOX 10KW HARN GTS-EXT CONN BOX 14/17KW

Residential Transfer Switch Installation Guide Notes 16

Residential Transfer Switch Installation Guide Notes

Part No. 0G8571 Revision E (08/10/09) Catalog No. KGATX100-1SI Printed in U.S.A.

REVISION: H-5124-E DATE: 09/24/09

REVISION: H-5124-E DATE: 09/24/09

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