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Automatic Transfer Switch Owner’s Manual

iii

Table of Contents

Section 1: Safety

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

Read This Manual Thoroughly ....................................1

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

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

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

Section 2: General Information

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

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

Transfer Switch Mechanism (RXU Models Only) ........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) .........................................6
Application Considerations ..........................................7

Accessories ..........................................................8

Section 3: Installation

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

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

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

Connecting Power Source (RBU and RXUW) .10

Connecting Alternate Power Source (RXUW
Only) ....................................................................11

Connecting Start Circuit Wires .........................13

Connecting SACM .............................................13

Control of Air Conditioner Load .................................13

Auxiliary Contact ...............................................14

Fault Current Label ............................................14

Install Transfer Switch and SACM Kit
(RBU Only) ..........................................................15

Section 4: Operation (RXUW Models Only)

Functional Tests and Adjustments .................. 17

Manual Operation .............................................. 17

Close to Utility Source Side .......................................17
Close to Generator Source Side ...............................18
Return to Utility Source Side .....................................18

Voltage Checks .................................................. 18

Utility Voltage Checks ...............................................18
Generator Voltage Checks ........................................18

Generator Tests Under Load ............................ 18

Checking Automatic Operation ........................ 19

Installation Summary ........................................ 19

Shutting Generator Down While Under Load
or During a Utility Outage ................................. 19

Preparing for Maintenance ............................... 20

Testing The SACM ............................................. 20

SACM Fuse Service ........................................... 20

Section 5: Drawings and Diagrams

Installation Drawings ........................................ 21

No. A0000258227-A: 150-200A SER METER

MAIN .........................................................................21

Interconnection Drawings ................................ 22

No. A0000258228-A (Part 1 of 2)—Liquid-Cooled

Generator ..................................................................22

No. A0000258228-A (Part 2 of 2)—Air-Cooled

Generator ..................................................................23

Содержание G0074000

Страница 1: ... Meter Transfer Switch RBU200A3 200A RBU200A3LV 200A with Lever Bypass RBU150A3 150A RBU150A3LV 150A with Lever Bypass G0074000 RBU Transfer Switch Upgrade Kit 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 servi...

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

Страница 3: ...ircuit Wires 13 Connecting SACM 13 Control of Air Conditioner Load 13 Auxiliary Contact 14 Fault Current Label 14 Install Transfer Switch and SACM Kit RBU Only 15 Section 4 Operation RXUW Models Only Functional Tests and Adjustments 17 Manual Operation 17 Close to Utility Source Side 17 Close to Generator Source Side 18 Return to Utility Source Side 18 Voltage Checks 18 Utility Voltage Checks 18 G...

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Страница 5: ...clusive If using a procedure work method or operating technique that the manufacturer does not spe cifically recommend verify that it is safe for others and does not render the equipment 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 that may be haz...

Страница 6: ...f 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 000191 DANGER 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 000119 DANGER Equip...

Страница 7: ...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 author...

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Страница 9: ...ed The lower cabinet contains the Automatic Transfer Switch and Service Disconnect Main Circuit Breaker with Load Shed Module and customer terminations RBU Models do not come equipped with a transfer switch They may be upgraded to include a transfer switch with G0074000 Upgrade Kit NOTE Meters are retained by either a Ring or Ringless method Verify you have the proper type to meet local code requi...

Страница 10: ... near the transfer switch Also be sure to read all instructions and information found on tags labels and decals affixed to the equipment Publications that outline the safe use of transfer switches are the following NFPA 70 National Electrical Code UL 1008 Standard for Safety Automatic Transfer Switches ANSI UL 414 Meter Sockets UL 891 Busbar ANSI C12 7 Meter Sockets NOTE It is essential to use the...

Страница 11: ...iorities on the SACM as the 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 both appliances Sharing priorities can allow up to 12 loads to be managed in a properly sized system In any combination of modules the recovery times after a loss of utility...

Страница 12: ...ter sockets Verify you have the proper type to meet local code requirements G0074040 Meter Safety Flash Shield Safety flash shield for standard and horn bypass type meter jaws Used with ring less style meter retainment G0074050 Side Connection Lug Kit Includes all pieces necessary to convert the standard four jaw meter socket into a socket with side lug line connections G0074060 24 in Pedestal Ext...

Страница 13: ...ed to it Mount the switch vertically to a rigid supporting structure To prevent switch distortion level all mounting points If necessary use washers behind mounting holes to level the unit Open Enclosure See Figure 3 1 First remove outer top cover A 1 Rotate latch B clockwise until clear of latch hole Figure 3 1 Rotate Latch 2 See Figure 3 2 Tilt cover as shown and pull away from enclosure Figure ...

Страница 14: ...isted on the circuit breaker Available utility entry points are the top the bottom left or the bottom right The wire duct is reversible for left or right wire entry applications as needed 3 Connect utility neutral and ground to the Upper Neutral and Ground terminals Neutral and Ground terminals are bonded to each other with a jumper wire A 4 If applicable connect Solar directly to Utility at S1 an...

Страница 15: ...cables and conduit Conduit entry shall maintain the proper wire bending spaces required by Tables 312 6 A and B in the NEC Conduits should be arranged to provide separation between the Utility and Generator supply conductors inside the enclosure For transfer switches installed in wet locations power cables or conduits entering above the level of uninsulated live parts shall use fittings listed for...

Страница 16: ...r 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 DC Ground 194 12 VDC 23 Transfer Control J 240 VAC 6 3A Fuses K Spare Fuse A B G H C D E F T1 1 1 1 1 2 2 2 2 T1 N1 N2 0 DC GROUND 194 12 VDC N1 N2 T1 23TRANSFER T1 N2 0 194 23 N1 006244 J K ...

Страница 17: ...n insulation rating equal to at least the maximum circuit voltage applied to any conductor within the equipment cable or conduit See NEC 300 3 C 1 Connecting SACM See Figure 3 5 The SACM can control an air conditioner 24 VAC directly Control of Air Conditioner Load 1 Route the thermostat cable from the furnace thermostat to the outdoor air conditioner unit to the transfer switch 2 Connect the wire...

Страница 18: ...al and transfer switch manual operating handle The 2017 NEC requires that the short circuit current rating of the transfer equipment based on the type of overcurrent protective device protecting the 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 completed...

Страница 19: ...ub panel Figure 3 8 Remove Bus Bar Assembly 3 See Figure 3 9 Use provided M5 screws C to install transfer switch assembly from kit G0074000 4 Install screws A from step 1 and tighten to 72 in lbs onto circuit breaker 5 Install SACM unit from kit G074000 into bracket provided D 6 Plug harness with 8 pin connector into SACM unit D 7 Follow RXUW instructions to connect SACM to genset Figure 3 9 Insta...

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Страница 21: ... This can be viewed through the long narrow slot in the inside cover The top of the movable contact carrier arm is yellow for easy identification Manual operation handle in the UP position LOAD terminals T1 T2 are connected to utility terminals N1 N2 Manual operation handle in the DOWN position LOAD terminals T1 T2 are connected to EMERGENCY terminals E1 E2 Close to Utility Source Side Before proc...

Страница 22: ...ircuit breaker CB1 to ON or CLOSED 4 With an accurate AC voltmeter and frequency meter check the no load voltage and frequency Measure across ATS terminal lugs E1 to E2 E1 to NEUTRAL and E2 to NEUTRAL 5 When certain the generator supply voltage is correct and compatible with transfer switch ratings turn OFF the generator supply to the transfer switch 6 Set the generator main circuit breaker CB1 to...

Страница 23: ...engine should crank and start when the utility source power is turned OFF after a five second delay factory default setting After starting the transfer switch should connect load circuits to the standby side after a five 5 second warm up delay Let the system operate through its entire automatic sequence of operation NOTE Timer durations may differ between generators and settings With the generator...

Страница 24: ... or the generator position 1 Turn on the utility supply to the ATS 2 Verify managed loads are powered and all LEDs illuminate on SACM 3 Press the TEST button on the SACM 4 Verify that all of the connected loads to be shed become disabled 5 After five 5 minutes verify A C 1 is energized and Status LED A C 1 is ON 6 After another 15 seconds verify A C 2 is energized and Status LED A C 2 is ON 7 Afte...

Страница 25: ...c Transfer Switch Owner s Manual 21 Section 5 Drawings and Diagrams Installation Drawings No A0000258227 A 150 200A SER METER MAIN 452 17 8 956 37 6 95 3 7 101 4 0 230 9 1 14 6 12 5 7 3 8 3 186 7 3 SEE DETAIL A DETAIL A SCALE 1 000 ...

Страница 26: ...TATE AND LOCAL ELECTRIC CODES N1 N2 N1 N2 T1 T2 E1 E2 UTILITY SUPPLY ELECTRODE TO GROUNDING GROUND CONNECTION NEUTRAL CONNECTION OPTIONAL 5TH JAW KIT SOLAR CONNECTION NEUTRAL BOND DISTRIBUTION PANEL CUSTOMER LOAD SERVICE ENTRANCE SWITCH INTERCONNECT NOTE NUMBERS TO TERMINAL NUMBERS MATCH WIRE GROUND BAR NEUTRAL BAR E1 E2 NEUTRAL CUSTOMER SUPPLIED NEUTRAL WIRE NEU N2 T1 LINE N1 194 194 183 178 23 2...

Страница 27: ...L CONNECTION OPTIONAL 5TH JAW KIT SOLAR CONNECTION NEUTRAL BOND DISTRIBUTION PANEL CUSTOMER LOAD GENERATOR CUSTOMER CONNECTION NEUTRAL BAR 0 GROUND BAR N1 N2 T1 194 23 GROUND CONNECTION NEUTRAL CONNECTION E1 E2 194 23 N1 N2 T1 0 23 TRANSFER 194 12V 0 GROUND N2 N1 T1 2 1 2 1 2 A C 4 A C 3 N2 N1 SERVICE ENTRANCE SWITCH INTERCONNECT NOTE INSTALLATION MUST MEET ALL NATIONAL STATE AND LOCAL ELECTRIC CO...

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Страница 31: ......

Страница 32: ... rights 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 Hwy 59 Waukesha WI 53189 1 888 GENERAC 1 888 436 3722 www generac com ...

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