Generac Power Systems RXSW100A3CUL User manual

Owner’s Manual

For

Automatic Transfer Switch

100 & 200 Amp, Service Entrance

Model Number

RXSW100A3CUL

RXSW200A3CUL

SERIAL NUMBER: _________________________

DATE PURCHASED:________________________

WWW.GENERAC.COM

888-436-3722

Para español , visita: http://www.generac.com/service-support/product-support-lookup

Pour le français, visiter : http://www.generac.com/service-support/product-support-lookup

SAVE THIS MANUAL FOR FUTURE REFERENCE

ii Automatic Transfer Switch Owner’s Manual

(000393)

WARNING

Operating, servicing and maintaining this

equipment can expose you to chemicals

including engine exhaust, carbon monoxide,

phthalates, and lead, which are known to the

State of California to cause cancer and birth

defects or other reproductive harm. To

minimize exposure, avoid breathing exhaust,

do not idle the engine except as necessary,

service your equipment in a well-ventilated

area and wear gloves or wash your hands

frequently when servicing your equipment.

For more information go to

www.P65Warnings.ca.gov.

Automatic Transfer Switch Owner’s Manual iii

Section 1: Safety

Introduction ..........................................................1

Safety Rules .........................................................1

Safety Symbols and Meanings ...........................1

Electrical Hazards ................................................2

General Hazards ..................................................3

Section 2: General Information

Unpacking ............................................................5

Equipment Description .......................................5

Transfer Switch Mechanism ........................................5

Utility Service Circuit Breaker ......................................6

Transfer Switch Data Decal ................................6

Transfer Switch Enclosure .................................6

Safe Use of Transfer Switch ...............................6

Load Management Options .................................6

Smart A/C Module (SACM) .........................................7

Smart Management Module (SMM) ............................7

Application Considerations ..........................................7

Section 3: Installation

Introduction to Installation .................................9

Mounting ...............................................................9

Open Enclosure ...................................................9

Connecting Power Source and Generator Power

Supply ..........................................................10

Connecting Start Circuit Wires .........................11

Connecting SACM .............................................11

Control of Air Conditioner Load .................................11

Auxiliary Contact ...............................................13

Fault Current Label ............................................13

Section 4: Operation

Functional Tests and Adjustments .................. 15

Manual Operation .............................................. 15

Close to Utility Source Side .......................................15

Close to Generator Source Side ...............................16

Return to Utility Source Side .....................................16

Voltage Checks .................................................. 16

Utility Voltage Checks ...............................................16

Generator Voltage Checks ........................................16

Generator Tests Under Load ............................ 16

Checking Automatic Operation ........................ 17

Installation Summary ........................................ 17

Shutting Generator Down While Under Load Or

During A Utility Outage .............................. 17

Preparing for Maintenance ............................... 18

Testing The SACM ............................................. 18

SACM Fuse Service ........................................... 18

Testing The SMM ............................................... 18

Section 5: Drawings and Diagrams

Installation Drawing .......................................... 19

No. 100000027062 ....................................................19

Interconnection Drawing .................................. 20

No. 100000027057—page 1 of 2 ..............................20

No. 100000027057—page 2 of 2 ..............................21

Table of Contents

iv Automatic Transfer Switch Owner’s Manual

This page intentionally left blank.

Safety

Automatic Transfer Switch Owner’s Manual 1

Section 1: Safety

Introduction

Thank you for purchasing a Generac Power Systems Inc.

product. This unit has been designed to provide high

performance, efficient operation, and years of use when

maintained properly.

Read this manual thoroughly and understand all of the

instructions, cautions, and warnings before using this

equipment. If any section of the manual is not

understood, contact your nearest authorized dealer, or

contact Generac Customer Service at 1-888-436-3722

(1-888-GENERAC), or www.generac.com with any

questions or concerns.

The owner is responsible for proper maintenance and

safe use of the equipment. Before operating or servicing

this transfer switch:

•Study all warnings in this manual and on the

product carefully.

•Become familiar with this manual and the unit

before use.

•Refer to the installation sections of the manual for

instructions on final assembly procedures. Follow

the instructions completely.

Save these instructions for future reference. ALWAYS

supply this manual to any individual that will use this

equipment.

The information in this manual is accurate based on

products produced at the time of publication. The

manufacturer reserves the right to make technical

updates, corrections, and product revisions at any time

without notice.

Safety Rules

The manufacturer cannot anticipate every possible

circumstance that might involve a hazard. The warnings

in this manual, and on tags and decals affixed to the unit

are, therefore, not all inclusive. If using a procedure, work

method or operating technique that the manufacturer

does not specifically recommend, verify that it is safe for

others. Also make sure the procedure, work method or

operating technique utilized does not render the

equipment unsafe.

Safety Symbols and Meanings

Throughout this publication, and on tags and decals

affixed to the transfer switch, DANGER, WARNING,

CAUTION and NOTE blocks are used to alert personnel

to special instructions about a particular operation that

may be hazardous if performed incorrectly or carelessly.

Observe them carefully. Their definitions are as follows:

NOTE: Notes contain additional information important to

a procedure and will be found within the regular text of

this manual.

These safety alerts cannot eliminate the hazards that

they indicate. Common sense and strict compliance with

the special instructions while performing the action or

service are essential to preventing accidents.

(000100a)

WARNING

Consult Manual. Read and understand manual

completely before using product. Failure to

completely understand manual and product

could result in death or serious injury.

(000001)

DANGER

Indicates a hazardous situation which, if not avoided,

will result in death or serious injury.

(000002)

WARNING

Indicates a hazardous situation which, if not avoided,

could result in death or serious injury.

(000003)

CAUTION

Indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Safety

2Automatic Transfer Switch Owner’s Manual

Electrical Hazards

(000129)

DANGER

Electrocution. High voltage is present at

transfer switch and terminals. Contact with live

terminals will result in death or serious injury.

(000104)

DANGER

Electrocution. Water contact with a power

source, if not avoided, will result in death

or serious injury.

(000145)

DANGER

Electrocution. In the event of electrical accident,

immediately shut power OFF. Use non-conductive

implements to free victim from live conductor. Apply

first aid and get medical help. Failure to do so will

result in death or serious injury.

(000237)

DANGER

Electrical backfeed. Use only approved switchgear to

isolate generator from the normal power source.

Failure to do so will result in death, serious injury,

and equipment damage.

(000195)

DANGER

Electrocution, equipment and property damage.

Handle transfer switches carefully when installing.

Never install a damaged transfer switch. Doing so

could result in death or serious injury, equipment

and property damage.

(000123)

DANGER

Electrocution. Turn utility supply OFF before

working on utility connections of the transfer

switch. Failure to do so will result in death or

serious injury.

(000157)

DANGER

Electrocution. Do not disable or modify the

connection box door safety switch. Doing so

will result in death or serious injury.

Automatic start-up. Disconnect utility power and

render unit inoperable before working on unit.

Failure to do so will result in death or serious injury.

(000191)

DANGER

(000119)

Equipment malfunction. Installing a dirty or damaged

transfer switch will cause equipment malfunction and

will result in death or serious injury.

DANGER

(000155a)

WARNING

Electric shock. Only a trained and licensed electrician

should perform wiring and connections to unit. Failure

to follow proper installation requirements could result in

death, serious injury, and equipment or property damage.

(000120)

CAUTION

Equipment damage. Verify all conductors are tightened

to the factory specified torque value. Failure to do so

could result in damage to the switch base.

(000121)

CAUTION

Equipment damage. Perform functional tests in the

exact order they are presented in the manual.

Failure to do so could result in equipment damage.

(000134a)

CAUTION

Equipment damage. Exceeding rated voltage and

current will damage the auxiliary contacts. Verify

that voltage and current are within specification

before energizing this equipment.

Safety

Automatic Transfer Switch Owner’s Manual 3

General Hazards

•Competent, qualified personnel should install,

operate and service this equipment. Adhere strictly

to local, state and national electrical and building

codes. When using this equipment, comply with

regulations established by the National Electrical

Code (NEC), Canadian Electrical Code (CE/CSA

C22.1), CSA Standard; the Occupational Safety

and Health Administration (OSHA), or the local

agency for workplace health and safety.

•If working 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.

•Any voltage measurements should be performed

with a meter that meets UL/CUL3111 safety

standards, and meets or exceeds overvoltage

class CAT III.

(000237)

DANGER

Electrical backfeed. Use only approved switchgear to

isolate generator from the normal power source.

Failure to do so will result in death, serious injury,

and equipment damage.

(000129)

DANGER

Electrocution. High voltage is present at

transfer switch and terminals. Contact with live

terminals will result in death or serious injury.

(000123)

DANGER

Electrocution. Turn utility supply OFF before

working on utility connections of the transfer

switch. Failure to do so will result in death or

serious injury.

(000104)

DANGER

Electrocution. Water contact with a power

source, if not avoided, will result in death

or serious injury.

(000188)

DANGER

Electrocution. Do not wear jewelry while

working on this equipment. Doing so will

result in death or serious injury.

(000213)

DANGER

Electrocution. Only authorized personnel should

access transfer switch interior. Transfer switch

doors should be kept closed and locked. Failure to

do so will result in death or serious injury.

Automatic start-up. Disconnect utility power and

render unit inoperable before working on unit.

Failure to do so will result in death or serious injury.

(000191)

DANGER

(000145)

DANGER

Electrocution. In the event of electrical accident,

immediately shut power OFF. Use non-conductive

implements to free victim from live conductor. Apply

first aid and get medical help. Failure to do so will

result in death or serious injury.

(000209b)

WARNING

Loss of life. This product is not intended to

be used in a critical life support application.

Failure to adhere to this warning could result

in death or serious injury.

WARNING

Equipment damage. This unit is not intended for use as a

prime power source. It is intended for use as an intermediate

power supply in the event of temporary power outage only.

Doing so could result in death, serious injury, and

equipment damage. (000247a)

Safety

4Automatic Transfer Switch Owner’s Manual

This page intentionally left blank.

General Information

Automatic Transfer Switch Owner’s Manual 5

Section 2: General Information

Unpacking

Carefully unpack the transfer switch. Inspect closely for

any damage that might have occurred during shipment.

The purchaser must file with the carrier any claims for

loss or damage incurred while in transit.

Check that all packing material is completely removed

from the switch prior to installation.

Equipment Description

This automatic transfer switch is used for transferring

electrical load from a utility (normal) power source to a

generator (standby) power source. Transfer of electrical

loads occurs automatically when the utility power source

has failed or is substantially reduced and the generator

source voltage and frequency have reached an

acceptable level. The transfer switch prevents electrical

feedback between two different power sources (such as

the utility and generator sources) and, for that reason,

codes require it in all standby electric system installations.

The transfer switch consists of a transfer mechanism,

utility service disconnect circuit breaker (if equipped), and

a Smart A/C module incorporating fuses and two terminal

blocks for transfer switch connections.

This UL/CUL listed transfer switch has locking provisions

for the utility entry cabinet. In addition, it has a lockout/

tagout provision for the service entrance circuit breaker.

Transfer Switch Mechanism

See Figure 2-1. This switch is used with a single-phase

system when the single-phase neutral line is to be

connected to a neutral lug and is not to be switched.

Solderless, screw-type terminal lugs are standard.

The conductor size range is as follows:

This transfer switch is suitable for control of motors, electric

discharge lamps, tungsten filament and electric heating

equipment where the sum of motor full load ampere ratings

and the ampere ratings of other loads do not exceed the

ampere rating of the switch and the tungsten load does not

exceed 30 percent of the switch rating.

This UL/CUL listed transfer switch is for use in optional

standby systems only.

A 100A rated switch is suitable for use on circuits capable

of delivering not more than 10,000 RMS symmetrical

amperes, 250 VAC maximum, when protected by a 100A

maximum circuit breaker (Siemens types QP or BQ) or

150A maximum circuit breaker (Square D Q2,

Westinghouse CA-CAH, General Electric TQ2 and

Siemens QJ2).

A 200A rated switch is suitable for use on a circuit

capable of 22,000 RMS symmetrical amperes, 240 VAC

when protected by a circuit breaker without an adjustable

short time response or by fuses.

Figure 2-1. Typical Single-Phase ATS Transfer

Mechanism

Switch

Rating Wire Range Conductor

Tightening Torque

100A #14-1/0 AWG (Cu/Al) 50 in-lbs (5.6 Nm)

200A #6-250 MCM (Cu/Al) 275 in-lbs (31 Nm) A Utility Closing Coil

B Generator Closing Coil

C Utility Lugs (N1 & N2)

D Generator Lugs (E1 & E2)

E Load Lugs (T1 & T2)

000219

General Information

6Automatic Transfer Switch Owner’s Manual

Utility Service Circuit Breaker

The utility service and generator disconnect circuit

breakers for 100 amp models are:

•Type BQ, 2-pole

•10,000 A/C

•120/240VAC, 100A

•50/60 Hertz

•Wire range: #1 - #8 AWG (Cu/Al)

•The conductor tightening torque is 50 in-lbs. (5.6

Nm).

The utility service circuit breakers for 200 amp models

are:

•Type 225AF, 2-pole

•22,000 A/C

•120/240VAC, 200A

•50/60 Hertz

•Wire range:

– Line: 300 MCM - 6 STR (Cu/Al)

– Load - ATS: 250 MCM - 6 STR (Cu/Al)

•The conductor tightening torque is:

– Line: 375 in-lbs (42.4 Nm)

– Load - ATS: 275 in-lbs. (31 Nm)

Transfer Switch Data Decal

See

Figure 2-2

. A data decal is permanently affixed to the

transfer switch enclosure. Use this transfer switch only

with the specific limits shown on the data decal and on

other decals and labels that may be affixed to the switch.

This will prevent damage to equipment and property.

When requesting information or ordering parts for this

equipment, make sure to include all information from the

data decal.

For future reference, record the Model and Serial numbers

in the space provided on the front cover of this manual.

Figure 2-2. Data Decal Location

Transfer Switch Enclosure

The standard switch enclosure is a National Electrical

Manufacturer’s Association (NEMA) and UL/CUL 3R

type. UL/CUL and NEMA 3R (indoor/outdoor rated) type

enclosures primarily provide a degree of protection

against falling rain and sleet; are undamaged by the

formation of ice on the enclosure.

Safe Use of Transfer Switch

Before installing, operating or servicing this equipment,

read the Safety Rules carefully. Comply strictly with all

Safety Rules to prevent accidents and/or damage to the

equipment. The manufacturer recommends that a copy

of the Safety Rules be posted near the transfer switch.

Also, be sure to read all instructions and information

found on tags, labels and decals affixed to the

equipment.

Two publications that outline the safe use of transfer

switches are the following:

•Canadian Electrical Code CE; CSA C22.1

•NFPA 70E: Standard for Electrical Safety In The

Workplace

•UL/CUL 1008: Standard for Safety—Automatic

Transfer Switches

NOTE: It is essential to use the latest version of any

standard to guarantee correct and current information.

Load Management Options

Load management systems are designed to work

together to prevent a generator from being overloaded by

large appliance loads. A Smart A/C Module (SACM) is

provided as standard equipment with this switch. An

optional Smart Management Module (SMM) is also

available.

006487

(000100a)

WARNING

Consult Manual. Read and understand manual

completely before using product. Failure to

completely understand manual and product

could result in death or serious injury.

This manual suits for next models

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