Generac Power Systems RXSW400A3CUL Owner'S Manual Download Page 10

General Information

6

Automatic Transfer Switch Owner’s Manual

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 prop-
erty.

Figure 2-2. Data Decal Location 

When requesting information or ordering parts for this
equipment, make sure to include all information from the
data decal. 
For future reference, record the serial number in the
space provided on the front cover of this manual.

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 th

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.
The following publications outline the safe use of transfer
switches:

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 ensure 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
standard in these switches. An optional Smart Manage-
ment Module (SMM) is also available.

Smart A/C Module (SACM)

Up to four air conditioner loads can be managed by the
SACM. The SACM manages the loads by “shedding” the
connected loads in the event of a drop in generator fre-
quency (overload). Loads to be “shed” are in four priority
levels on the module. 
See 

Figure 2-3

. Priorities A/C 1-4 (A) have connections

for an air conditioner. To control an air conditioner, no
additional equipment is required. Internal normally closed
relays interrupt the 24 VAC thermostat control signal to
disable the air conditioner load.

Figure 2-3. Smart A/C Module (SACM) 

008981

(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.

1

1

1

1

2

2

2

2

T1

N1

N2

0 DC GROUND

194  +12 VDC

N1
N2

T1

23 TRANSFER

Replace with Littelfuse  021606.3XHP,

Optifuse  FCD-6.3A or

Generac 10000005117 250 vac, 6.3A

®

®

A

B

C

D

004436

Summary of Contents for RXSW400A3CUL

Page 1: ...AC COM 1 888 GENERAC 888 436 3722 Para espa ol visita http www generac com service support product support lookup Pour le fran ais visiter http www generac com service support product support lookup S...

Page 2: ...ii Automatic Transfer Switch Owner s Manual 000393a WARNING CANCER AND REPRODUCTIVE HARM www P65Warnings ca gov...

Page 3: ...ner Load 11 Auxiliary Contacts 13 Fault Current Label 13 Section 4 Operation Functional Tests and Adjustments 15 Manual Operation 15 Close to Normal Source Side 16 Close to Standby Source Side 16 Retu...

Page 4: ...iv Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 5: ...unsafe Throughout this publication and on tags and decals affixed to the unit DANGER WARNING CAUTION and NOTE blocks are used to alert personnel to special instructions about a particular operation th...

Page 6: ...ng 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 conductor...

Page 7: ...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 in...

Page 8: ...Introduction and Safety 4 Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 9: ...UL 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 Figu...

Page 10: ...s affixed to the equipment The following publications outline the safe use of transfer switches Canadian Electrical Code CE CSA C22 1 NFPA 70E Standard for Electrical Safety In The Workplace UL CUL 10...

Page 11: ...top priorities then use additional SMMs as the remaining priorities A SMM can share a priority with an A C priority on the SACM provided the generator is sized to handle the combined surge load from b...

Page 12: ...General Information 8 Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 13: ...to it Mount the switch vertically to a rigid supporting structure To pre vent switch distortion level all mounting points If neces sary use washers behind mounting holes to level the unit Open Enclosu...

Page 14: ...ent to which they will be subjected based on the 75 C column of tables charts etc used to size con ductors The installation must comply fully with all appli cable codes standards and regulations Knock...

Page 15: ...tor within the equipment cable or conduit See NEC 300 3 C 1 Connecting SACM See Figure 3 3 The SACM can control an air conditioner 24 VAC directly Control of Air Conditioner Load 1 Route the thermosta...

Page 16: ...t 2 D Air Conditioner 2 E Thermostat 3 F Air Conditioner 3 G Thermostat 4 H Air Conditioner 4 T1 fused Battery Charge N1 fused Utility Sense N2 fused Utility Sense 0 Ground 194 12 VDC 23 Transfer Cont...

Page 17: ...transfer equipment be field marked on the exterior of the transfer equipment For NEC compliance verify the required short circuit current rating of the transfer switch before installation The com ple...

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Page 19: ...Operation See Figure 4 1 A manual handle A is shipped with the transfer switch Manual operation must be checked BEFORE the transfer switch is operated electrically Proceed as follows to check manual o...

Page 20: ...MM manufac turer s literature for additional information Utility Voltage Checks 1 Turn ON the UTILITY power supply to the transfer switch with whatever means provided such as the UTILITY main line cir...

Page 21: ...transfer switch 5 Set transfer switch utility service disconnect circuit breaker to ON CLOSED 6 Set generator main circuit breaker to ON 7 Select AUTO on generator panel The system is now ready for au...

Page 22: ...e test pushbutton will work when the ATS is in the utility or the generator position Figure 4 2 Test Pushbutton and Fuse Removal Installation Tool 1 Turn on the utility supply to the ATS 2 Verify mana...

Page 23: ...nual 19 Section 5 Drawings and Diagrams Installation Drawing No 0K2438 A 400A Service Entrance Rated PP PP PP PP PP PP PP 3 2 86720 5 6833 2 7 21 PP 127 25 5 5 7 1 6 21 8 76 0867 17 5 2 1 5 20321 176...

Page 24: ...rams 20 Automatic Transfer Switch Owner s Manual Interconnection Drawing No 10000041110 Part 1 of 2 Liquid Cooled Generator GROUP G INTERCONNECTION DIAGRAM ID 400A CUL SACM DRAWING 10000041110 REVISIO...

Page 25: ...ings and Diagrams Automatic Transfer Switch Owner s Manual 21 No 10000041110 Part 2 of 2 Air Cooled Generator GROUP G INTERCONNECTION DIAGRAM ID 400A CUL SACM DRAWING 10000041110 REVISION A DATE 07 18...

Page 26: ...s 22 Automatic Transfer Switch Owner s Manual Schematic and Wiring Diagram No 10000041100 Part 1 of 2 Schematic Diagram SCHEMATIC DIAGRAM SERVICE ENTRANCE W SMART AC MODULE DRAWING 10000041100 REVISIO...

Page 27: ...awings and Diagrams Automatic Transfer Switch Owner s Manual 23 No 10000041100 Part 2 of 2 Wiring Diagram WIRING DIAGRAM SERVICE ENTRANCE W SMART AC MODULE DRAWING 10000041100 REVISION A DATE 07 31 20...

Page 28: ...Drawings and Diagrams 24 Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 29: ...Drawings and Diagrams Automatic Transfer Switch Owner s Manual 25 This page intentionally left blank...

Page 30: ...Drawings and Diagrams 26 Automatic Transfer Switch Owner s Manual This page intentionally left blank...

Page 31: ......

Page 32: ...ights reserved Specifications are subject to change without notice No reproduction allowed in any form without prior written consent from Generac Power Systems Inc Generac Power Systems Inc S45 W29290...

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