Generac Power Systems RXSW400A3CUL, Owner'S Manual

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Automatic Transfer Switch Owner’s Manual iii
Section 1: Introduction and Safety
Introduction ..........................................................1
Read This Manual Thoroughly ....................................1
Safety Rules .........................................................1
Electrical Hazards ................................................1
General Hazards ..................................................2
Section 2: General Information
Unpacking ............................................................5
Equipment Description .......................................5
Transfer Switch Mechanism ........................................5
Utility Service Circuit Breaker ......................................5
Transfer Switch Data Decal ................................6
Transfer Switch Enclosure .................................6
Safe Use of Transfer Switch ...............................6
Load Management Options .................................6
Smart A/C Module (SACM) .........................................6
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 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
Return to Normal Source Side ..................................16
Voltage Checks ..................................................16
Utility Voltage Checks ...............................................16
Generator Voltage Checks ........................................16
Generator Tests Under Load ............................ 17
Checking Automatic Operation ........................ 17
Installation Summary ........................................ 17
Shutting Generator Down While
Under Load .................................................. 17
Shutting Generator Down To Perform
Maintenance ................................................ 18
Testing The SACM ............................................. 18
SACM Fuse Service ........................................... 18
Testing The SMM ............................................... 18
Section 5: Drawings and Diagrams
Installation Drawing .......................................... 19
No. 0K2438-A 400A Service Entrance Rated ...........19
Interconnection Drawing .................................. 20
No. 10000041110 (Part 1 of 2)—Liquid-Cooled
Generator .........................................................20
No. 10000041110 (Part 2 of 2)—Air-Cooled
Generator .........................................................21
Schematic and Wiring Diagram ....................... 22
No. 10000041100 (Part 1 of 2)—Schematic
Diagram ............................................................22
No. 10000041100 (Part 2 of 2)—Wiring Diagram .....23
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