Kohler KSSB User Manual

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Installation

Automatic Transfer Switches

Models:

KSSB

30- 1200 Amps

TP-7191 4/21

Product Identification Information

Product identification numbers determine service parts. Record the product identification numbers in the spaces below immediately after unpacking the products so that the numbers are readily available for future reference. Record field-installed kit numbers after installing the kits.

Transfer Switch Identification Numbers

Record the product identification numbers from the transfer switch nameplate.

Model Designation

Serial Number

Accessories

- Alarm Board

- Battery Module

- California OSHPD Approval

- Controller Disconnect Switch

- Current Monitoring

- Digital Meter

- Heater

- IBC Seismic Certification

- I/O Module, Standard (max. 4) qty:

- I/O Module, High Power (max. 4) qty:

- Load Shed

- Line-Neutral Monitoring

- Supervised Transfer Switch

- SurgeProtectionDevice(SPD)

Controller Identification

Record the controller description from the generator set operation manual, spec sheet, or sales invoice.

Controller Description

Table of Contents

Safety Precautions and Instructions 5........................................................

Introduction 9..............................................................................

List of Related Literature 9.....................................................

Service Assistance 10........................................................................

Section 1 Product Description 11.............................................................

1.1 Purpose 11.............................................................

1.2 Nameplate 11...........................................................

1.3 Model Designation 12....................................................

Section 2 Installation 13......................................................................

2.1 Introduction 13..........................................................

2.2 Receipt of Unit 13........................................................

2.2.1 Inspection 13....................................................

2.2.2 Lifting 13.......................................................

2.2.3 Storage 14......................................................

2.2.4 Unpacking 14...................................................

2.3 Installation 14...........................................................

2.4 IBC Seismic Certification 15...............................................

2.5 Manual Operation, Model KSS Switches 16.................................

2.5.1 Manual Operation, 30- 230 Amp Switches 16........................

2.5.2 Manual Operation, 230A/600V and 260- 1200 Amp Switches 17........

2.6 Controller Connections 19................................................

2.6.1 Controller Input and Output Connections 20.........................

2.6.2 Harness Connection 20...........................................

2.6.3 Controller Ground 20.............................................

2.7 Electrical Wiring 21......................................................

2.7.1 Source and Load Connections 21..................................

2.7.2 Engine Start Connection 23.......................................

2.7.3 Auxiliary Contacts 24.............................................

2.8 Communication and Accessory Connections 25..............................

2.9 Functional Tests 25......................................................

Section 3 Communication and Accessory Connections 27......................................

3.1 Introduction 27..........................................................

3.2 Communication Connections 27...........................................

3.2.1 USB Port SiteTech Connection 27..................................

3.2.2 Modbus Connection 27...........................................

3.2.3 Ethernet Connection 29...........................................

3.3 Accessory Modules 31...................................................

3.3.1 Accessory Module Mounting 31....................................

3.3.2 Input/Output (I/O) Modules 32.....................................

3.3.3 External Battery Supply Module (EBSM) 33.........................

3.3.4 Alarm Module 34................................................

3.4 Heater 36...............................................................

Section 4 Scheduled Maintenance 39..........................................................

Section 5 Functional Tests and Setup 41......................................................

5.1 Introduction 41..........................................................

5.2 Manual Operation Test 41.................................................

5.3 Voltage Check 41........................................................

5.4 Lamp Test 42

TP-7191 4/21 Table of Contents 3

...........................................................

Table of Contents, continued

5.5 Automatic Operation Test 42..............................................

5.6 System Setup 43........................................................

5.7 Exerciser Setup 43.......................................................

5.8 User Interface Cover 43..................................................

5.9 Startup Notification 43....................................................

Appendix A Abbreviations 45................................................................

TP-7191 4/21Table of Contents4

Safety Precautions and Instructions

IMPORT ANT SAFETY INSTRUCTIONS.

Electromechanical equipment, including generator sets, transfer switches, switchgear, and accessories, can cause bodily harm and pose life-threatening danger when improperly installed, operated, or maintained. To prevent accidents be aware of potential dangers and act safely. Read and follow all safety precautions and instructions. SAVE THESE INSTRUCTIONS.

This manual hasseveral types of safety precautions and instructions: Danger, Warning, Caution, and Notice.

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE

NOTICE is used to address practices not related to physical injury.

Safety decals affixed to the equipment in prominent places alert the operator or service technician to potential hazards and explain how to act safely. The decals are shown throughout this publication to improve operator recognition. Replace missing or damaged decals.

Accidental Starting

WARNING

Accidental starting. Can cause severe injury or death.

Disconnect the battery cables before working on the generator set. Remove the negative (- ) lead first when disconnecting the battery. Reconnect the negative (- ) lead last when reconnecting the battery.

Disabling the generator set. Accidental starting can cause severe injury or death. Before

working on the generator set or equipment connected to the set, disable the generator set as follows: (1) Move the generator set master switch to the OFF position. (2) Disconnect the power to the battery charger. (3) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent starting of the generator set by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer.

(Decision-Makerr 3+ and 550 Generator Set Controllers)

Disabling the generator set. Accidental starting can cause severe injury or death. Before

working on the generator set or equipment connected to the set, disable the generator set as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect the power to the battery charger, if equipped. (3) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch.

(RDC, DC, RDC2, DC2, Decision-Makerr 3000, 3500 and 6000 Generator Set Controllers)

Disabling the generator set. Accidental starting can cause severe injury or death. Before

working on the generator set or equipment connected to the set, disable the generator set as follows: (1) If the controller is not already in the MAN (manual) mode, press the Controller Mode button and then press the MAN mode button. (2) If the generator set is running, press and hold the Manual- Stop button for at least 2 seconds to stop the generator set. (3) Press the Controller Mode button and then press the controller Off mode button. (4) Disconnect the power to the battery charger, if equipped. (5) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch.

(Decision-Makerr 8000 Controller)

Hazardous Voltage/ Moving Parts

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

DANGER

Hazardous voltage. Will cause severe injury or death.

Only authorized personnel should open the enclosure.

TP-7191 4/21 5Safety Precautions and Instructions

Grounding electrical equipment. Hazardous voltagewill cause severe injury or death. Electrocution is

possible whenever electricity is present. Ensure you comply with all applicable codes and standards. Electrically ground the generator set, transfer switch, and related equipment and electrical circuits. Turn off the main circuit breakers of all power sources before servicing the equipment. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

Removing the transfer switch from bypass/isolation models. Hazardous voltage will cause severe injury or death. Bypass and isolate the transfer

switch before removing it from the enclosure. The bypass/isolation switch is energized. Do not touch the isolation contact fingers or the control circuit terminals.

Short circuits. Hazardous voltage/current will cause severe injury or death. Short circuits can

cause bodily injury and/or equipment damage. Do not contact electrical connections with tools or jewelry while making adjustments or repairs. Remove all jewelry before servicing the equipment.

Making line or auxiliary connections. Hazardous voltage will cause severe injury or death. To

prevent electrical shock deenergize the normal power source before making any line or auxiliary connections.

Servicing the transfer switch. Hazardous voltagewill cause severe injury or death. Deenergize all power

sources before servicing. Turn off the main circuit breakers of all transfer switch power sources and disable all generator sets as follows: (1) Move all generator set master controller switches to the OFF position. (2) Disconnect power to all battery chargers. (3) Disconnect all battery cables, negative (- ) leads first. Reconnect negative (- ) leads last when reconnecting the battery cables after servicing. Follow these precautions to prevent the starting of generator sets by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. Before servicing any components inside the enclosure: (1) Remove all jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Test circuits with a voltmeter to verify that they are deenergized.

(Decision-Makerr 3+ and 550 Generator Set Controllers)

Servicing the transfer switch. Hazardous voltagewill cause severe injury or death. Deenergize all power

sources before servicing. Turn off the main circuit breakers of all transfer switch power sources and disable all generator sets as follows: (1) Pressthe generator set off/reset button to shut down the generator set. (2) Disconnect power to all battery chargers. (3) Disconnect all battery cables, negative (- ) leads first. Reconnect negative (- ) leads last when reconnecting the battery cables after servicing. Follow these precautions to prevent the starting of generator sets by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. Before servicing any components inside the enclosure: (1) Remove all jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Test circuits with a voltmeter to verify that they are deenergized.

(RDC, DC, RDC2, DC2, Decision-Makerr 3000, 3500 and 6000 Generator Set Controllers)

Testing live electrical circuits. Hazardous voltage or current will cause severe injury or death. Have

trained and qualified personnel take diagnostic measurements of live circuits. Use adequately rated test equipment with electrically insulated probes and follow the instructions of the test equipment manufacturer when performing voltage tests. Observe the following precautions when performing voltage tests: (1) Remove all jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Do not touch the enclosure or components inside the enclosure. (4) Be prepared for the system to operate automatically.

(600 volts and under)

Heavy Equipment

WARNING

Unbalanced weight. Improper lifting can cause severe injury or death and equipment damage.

Use adequate lifting capacity. Never leave the transfer switch standing upright unless it is securely bolted in place or stabilized.

Notice

NOTICE

Improper operator handle usage.

Use the manual operator handle on the transfer switch for maintenance purposes only . Return the transfer switch to the normal position. Remove the manual operator handle, if used, and store it in the place provided on the transfer switch when service is completed.

TP-7191 4/216 Safety Precautions and Instructions

NOTICE

Foreign material contamination.

Cover the transfer switch during installation to keep dirt, grit, metal drill chips, and other debris out of the components. Cover the solenoid mechanism during installation. After installation, use the manual operating handle to cycle the contactor to verify that it operates freely. Do not use a screwdriver to force the contactor mechanism.

NOTICE

Electrostatic discharge damage.

Electrostatic discharge (ESD) damages electronic circuit boards. Prevent electrostatic discharge damage by wearing an approved grounding wrist strap when handling electronic circuit boards or integrated circuits. An approved grounding wrist strap provides a high resistance (about 1 megohm), not a direct short,to ground.

TP-7191 4/21 7Safety Precautions and Instructions

Notes

TP-7191 4/218 Safety Precautions and Instructions

Introduction

This manual provides installation instructions for the Kohlerr Model KSSB Automatic Transfer Switch (ATS). Model KSSB transfer switches are equipped with the Kohler MPACr 1200 controller.

Model KSSB is used in some places in this manual to indicate that this document applies to an updated version of the model KSS automatic transfer switch. The letter B is NOT used in the model designation or Quick Ship (QS) specification numbers used for ordering the product.

A separate manual provided with the transfer switch covers the transfer switch controller operation. See List of Related Materials for the document part number.

Information in this publication represents data available at the time of print. Kohler Co. reserves the right to change this literature and the products represented without notice and without any obligation or liability whatsoever.

Read this manual and carefully follow all procedures and safety precautions to ensure proper equipment operation and to avoid bodily injury. Read and follow the Safety Precautions and Instructions section at the beginning of this manual. Keep this manual with the equipment for future reference.

The equipment service requirements are very important to safe and efficient operation. Inspect parts often and perform required service at the prescribed intervals. See the controller Operation manual for the service schedule. Obtain service from an authorized service distributor/ dealer to keep equipment in top condition.

List of Related Literature

A separate manual covers the transfer switch controller and related accessories. The Service Manual contains service instructions for transfer switch power switching devices and electrical controls.

The following table lists the part numbers for related literature.

Literature Item Part Number

Specification Sheet, Model KSSB G11-150

Specification Sheet, Decision-Makerr MPAC 1200 Controller

Operation Manual, Decision-Makerr MPAC 1200 Controller

Wiring Diagram Manual, Model KC/KSSB TP-7195

Service Manual, Model KC/KSSB TP-6920

G11-127

TP-6866

TP-7191 4/21 9Introduction

Service Assistance

For professional advice on generator set power requirements and conscientious service, please contact your nearest Kohler distributor or dealer.

D Visit the Kohler Co. website at KOHLERPower.com.

D Look at the labels and decals on your Kohler product

or review the appropriate literature or documents included with the product.

D Call toll free in the US and Canada 1-800-544-2444.

D Outside the US and Canada, call the nearest regional

office.

Headquarters Europe, Middle East, Africa (EMEA)

Kohler EMEA Headquarters Netherlands B.V. Kristallaan 1 4761 ZC Zevenbergen The Netherlands Phone: (31) 168 331630 Fax: (31) 168 331631

Asia Pacific

Kohler Asia Pacific Headquarters Singapore, Republic of Singapore Phone: (65) 6264-6422 Fax: (65) 6264-6455

China

North China Regional Office, Beijing Phone: (86) 10 6518 7950

(86) 10 6518 7951 (86) 10 6518 7952

Fax: (86) 10 6518 7955

East China Regional Office, Shanghai Phone: (86) 21 6288 0500 Fax: (86) 21 6288 0550

India, Bangladesh, Sri Lanka

India Regional Office Bangalore, India Phone: (91) 80 3366208

(91) 80 3366231

Fax: (91) 80 3315972

Japan, Korea

North Asia Regional Office Tokyo, Japan Phone: (813) 3440-4515 Fax: (813) 3440-2727

TP-7191 4/2110 Service Assistance

Section 1 Product Description

1.1 Purpose

An automatic transfer switch (ATS) transfers electrical loads from a normal (preferred) source of electrical power to an emergency (standby) source when the normal source falls outside the acceptable electrical parameters.

When the normal (preferred) source fails, the ATS signals the emergency (standby) source generator set to start. When the emergency (standby) source reaches acceptable levels and stabilizes, the ATS transfers the load from the normal (preferred) source to the emergency (standby) source. The AT S continuously monitors the normal (preferred) source and transfers the load back when the normal (preferred) source returns and stabilizes. After transferring the load back to the normal (preferred) source, the ATS removes the generator start signal, allowing the generator set to shut down.

Figure 1-2 shows a typical installation block diagram.

Normal

(Utility)

Power Switching Device

Power

Emergency (Generator) Power

Automatic Transfer Switch

To Load

Generator

Start Generator

Electrical

Controls

TS-003

Figure 1-2 Typical ATS Block Diagram

1.2 Nameplate

A nameplate attached to the controller cover on the inside of the enclosure door includes a model designation, a serial number, ratings, and other information about the transfer switch. See Figure 1-3. The serial number is also shown on a label inside the transfer switch enclosure.

Figure 1-1 Automatic Transfer Switch

Copy the model designation, serial number, and accessory information from the nameplate to the spaces provided in the Product Identification Information section inside the frontcover of this manual for use when requesting service or parts.

GM21291

Figure 1-3 Typical Transfer Switch Nameplate

TP-7191 4/21 11Section 1 Product Description

1.3 Model Designation

Model Controls Voltage Enclosure Current Rating MiscellaneousMechanismTransition

Record the transfer switch model designation in the boxes. The transfer switch model designation defines characteristics and ratings as explained below.

Poles

Note: The letter B is not used after KSS in the model designation shown on the ATS nameplate or used for

ordering the product.

Sample Model Designation: KSS-AMTA-0400S

Model

K: Kohler

Mechanism

S: Standard (Specific Breaker)

Transiti on

S: Standard

Controller

Decision-Makerr MPAC 1200, Automatic

Decision-Makerr MPAC 1200, Non-Automatic

Voltage/Frequency

C: 208 Volts / 60 Hz K: 440 Volts/60 Hz

D: 220 Volts / 50 Hz M: 480 Volts /60 Hz

F: 240 Volts / 60 Hz N: 600 Volts / 60 Hz

G: 380 Volts/50 Hz P: 380 Volts /60 Hz

H: 400 Volts / 50 Hz R: 220 Volts / 60 Hz

J: 416 Volts / 50 Hz S: 400 Volts/60 Hz

Number of Poles/Wires

N: 2 Poles/ 3 Wires, Solid Neutral

T: 3 Poles/4 Wires, Solid Neutral

V: 4 Poles /4 Wires, Switched Neutral

W: 4 Poles/4 Wires, Overlapping Neutral

Enclosure

A: NEMA 1 D: NEMA 4

B: NEMA 12 F: NEMA 4X

C: NEMA 3R G: Open Unit

Current, Amps

0030 0200 0600

0070 0230 0800

0104 0260 1000

0150 0400 1200

Connections

S: Standard

Note: Some selections are not available for every model.

Contact your Kohler distributor for availability.

TP-7191 4/2112 Section 1 Product Description

Section 2 Installation

2.1 Introduction

Kohlerr transfer switches are shipped factory-wired, factory-tested, and ready for installation. Have the equipment installed only by trained and qualified personnel, and verify that the installation complies with applicable codes and standards. Switch installation includes the following steps:

D Unpack and inspect the transfer switch upon receipt.

D Verify that the transfer switch voltage and frequency

ratings match the voltages and frequencies of the sources.

D Install the transfer switch.

D Check the manual operation.

D Connect the controller harness and ground lead.

D Connect the generator set engine start leads.

D Connect the normal power source (utility),

emergency power source (generator set), and load circuits.

D Connect accessories, if provided.

D Check voltages and operation.

2.2 Receipt of Unit

2.2.1 Inspection

At the time of delivery, inspect the packaging and the transfer switch for signs of shipping damage. Unpack the transfer switch as soon as possible and inspect the exterior and interior for s hipping damage. If damage and/or rough handling is evident, immediately file a damage claim with the transportation company.

2.2.2 Lifting

WARNING

Unbalanced weight. Improper lifting can cause severe injury or death and equipment damage.

Use adequate lifting capacity. Never leave the transfer switch standing upright unless it is securely bolted in place or stabilized.

Protect the switch against damage before and during installation.

Note: A protective device such as a molded-case circuit

breaker or fused disconnect switch MUST be installed on both sources of incoming power for circuit protection and used as a disconnect device.

The functional tests in Section 5 are a necessary part of the installation. Be sure to perform the functional tests, which include voltage checks and operation tests, before putting the transfer switch into service.

Refer to Figure 2-1 for the approximate weight of the transfer switch in a Type 1 enclosure. For open units and other enclosures, refer to the dimension drawing. Use a spreader bar to lift the transfer switch. Attach the bar only to the enclosure’s mounting holes or lifting brackets; do not lift the unit any other way. Close and latch the enclosure door before moving the unit.

Weight kg (lb.)

Amps

30- 200 28 (62) 30 (65) 31 (68)

230 (208- 480V)

230(600V) 260- 600

800 220 (485) 231 (510) 238 (525)

1000 — 231 (510) 238 (525)

1200 — 356 (785) 379 (835)

2-Pole 3-Pole 4-Pole

52 (115) 56 (123) 59 (131)

179 (395) 183 (403) 188 (414)

Figure 2-1 Approximate Weights, Type 1 Enclosures

TP-7191 4/21 13Section 2 Installation

2.2.3 Storage

Store the transfer switch in its protective packing until final installation. Protect the transfer switch at all times from moisture, construction grit, and metal chips. Avoid storage in low-temperature and high-humidity areas where moisture could condense on the unit. See Figure 2-2 for acceptable storage temperatures.

Plan the installation. Use the dimensions given on the enclosure dimension (ADV) drawings. Select a mounting site that complies with local electrical code restrictions for the enclosure type. Mount the transfer switch as close to the load and power sources as possible. Allow adequate space to fully open the enclosure and to service the switch. Provide cable bending space and clearance to live metal parts.

Environmental Specifications

Operating Temperature -20Cto70C(-4Fto158F)

Storage Temperature -40Cto85C(-40Fto185F)

Humidity 5% to 95% noncondensing

Figure 2-2 Environmental Specifications

2.2.4 Unpacking

Allow the equipment to warm to room temperature for at least 24 hours before unpacking to prevent condensation on the electrical apparatus. Use care when unpacking to avoid damaging transfer switch components. Remove d irt and packing material that may have accumulated in the transfer switch or any of its components.

Note: Do not use compressed air to clean the switch.

Cleaning with compressed air can cause debris to lodge in the components and damage the switch.

For 600- 800 amp transfer switches, remove the lag screws that secure the transfer switch to the shipping skid. For 1000- 1200 amp transfer switches, open the enclosure door to remove the lag screws that secure the transfer switch to the skid.

2.3 Installation

NOTICE

Foreign material contamination. Cover the transfer switch

during installation to keep dirt, grit, metal drill chips, and other debris out of the components. Cover the solenoid mechanism during installation. After installation, use the manual operating handle to cycle the contactor to verify that it operates freely. Do not use a screwdriver to force the contactor mechanism.

The transfer switch may use both American Standard and metric hardware. Use the correct size tools to prevent rounding of the bolt heads and nuts.

Outdoor installations. Transfer switches with NEMA 3R, 4, or 4X enclosures can be installed outdoors. In locations with very high ambient temperatures, installation in a shaded area or a location with the enclosure door facing away from direct sunlight is recommended.

Prepare the foundation. Ensure that the supporting foundation for the enclosure is level and straight. Refer to the applicable enclosure outline drawing for all mounting details including door opening space.

For bottom cable entry, if used, install conduit stubs in the foundation. Refer to the enclosure dimension drawing f or the conduit stub locations. When pouring a concrete floor, use interlocking conduit spacer caps or a wood or metal template to maintain proper conduit alignment.

Installation of seismically certified transfer switches. Seismic certification must be requested

when the transfer switch is ordered. See Section 2.4 and thetransferswitchdimension(ADV)drawingsfor additional installation requirements for transfer switches with seismic certification.

Install the ATS. Mount 30- through 600-amp transfer switches to a wall or other rigid vertical supporting structure. Clearance holes through the back of each enclosure are provided for mounting. Level the enclosure and use shims if needed to make it plumb. Verify that the door hinges are vertical to avoid d istortion of the enclosure or door.

Bolt 800- through 1200-amp automatic transfer switches directly to floor mounting pads. Use shims if needed to plumb the enclosure. Verify that the door hinges are vertical to avoid distortion of the enclosure or door.

Check the system voltage and frequency.Compare the voltage and frequency shown on the transfer switch nameplate to the source voltage and frequency. Do not install the transfer switch if the system voltage and frequency are different from the nominal normal (utility) source voltage and frequency or the nominal emergency source voltage and frequency shown on the generator set nameplate.

TP-7191 4/2114 Section 2 Installation

2.4 IBC Seismic Certification

Automatic transfer switches with seismic certification must be installed according to the instructions in this section. Also refer to ADV-7456, the Certificate of Compliance provided with the ATS, and the installation (ADV) drawings for the transfer switch.

Abbreviations:

ACI: American Concrete Institute

IBC: International Building Coder

Design spectral response acceleration at short

DS:

period, as determined in Section 1615.1.3 of the IBC

: Equipment response modification factor

: Equipment importance factor

: In-structure equipment amplification factor

Refer to the International Building Coder for more information.

General Seismic Installation Notes (for ATS only):

1. Anchors used for seismic installation must be designed in accordance with ACI 355.2- 04. Suggested manufacturers include Simpson, Ramset, and Hilti.

2. Anchors must be installed to a minimum embedment of 8x the anchor diameter.

3. Anchors must be installed in minimum 4000 psi compressive strength normal weight concrete. Concrete aggregate must comply with ASTM C33. Installation in structural lightweight concrete is not permitted unless otherwise approved by the structural engineer of record.

4. Anchors must be installed to the required torque specified by the anchor manufacturer to obtain maximum loading.

5. Anchors must be installed to the anchor spacing required to obtain maximum load and edge distance required to obtain maximum load unless otherwise approved by the structural engineer of record.

6. Anchors used for seismic installation must be designed and rated to resist seismic loading in

accordance with ACI 355.2- 04 and documented in a report by a reputable testing agency (for example, the Evaluation Service Report issued by the International Code Council).

7. Wide washers must be installed at each anchor location between the anchor head and equipment for tension load distribution. See applicable ADV drawing for specific anchor information and washer dimensions.

8. Equipment installed on a housekeeping pad requires the housekeeping pad thickness to be at least 1.5x the anchor embedment depth.

9. All housekeeping pads must be seismically designed and dowelled or cast into the building structure as approved by the structural engineer of record.

10. Rebar reinforcing in the housekeeping pad is required for all installations.

11. Concrete and rebar reinforcing must be designed in accordance with ACI 318- 05.

12. Wall-mounted equipment must be installed to a rebar reinforced structural concrete wall that is seismically designed and approved by the engineer of record to resist the added seismic loads from components being anchored to the wall.

13. Floor-mounted equipment (with or without a housekeeping pad) must be installed to a rebar reinforced structural concrete floor that is seismically designed and approved by the engineer of record to resist the added seismic loads from components being anchored to the floor.

14. When installing to a floor or wall, rebar interference must be considered.

15. Equipment attached to any structural floor or wall other than those constructed of structural concrete and designed to accept the seismic loads from the mounted equipment are beyond the scope of this specification.

16. Installation to light-weight concrete over steel decking is beyond the scope of this specification.

17. Installation to concrete block or cinder block walls is beyond the scope of this specification.

TP-7191 4/21 15Section 2 Installation

2.5 Manual Operation, Model KSS Switches

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

2.5.1 Manual Operation, 30- 230 Amp Switches

The 30- 230 amp standard-transition models have an attached manual operating handle. See Figure 2-3.

Note: For 230A/600V models, see Section 2.5.2.

Manual Operation Test Procedure, 30- 230 Amp Transfer Switches

1. Disable the generator set to prevent starting and disconnect all power sources before manually operating the transfer switch.

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power sources

before servicing. Turn off the main circuit breakers of all transfer switch power sources and disable all generator sets as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect power to all battery chargers. (3) Disconnect all battery cables, negative (- ) leads first. Reconnect negative (- ) leads last when reconnecting the battery cables after servicing. Follow these precautions to prevent the starting of generator sets by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. Before servicing any components inside the enclosure: (1) Remove all jewelry. (2) Stand on a dry,approved electrically insulated mat. (3) Test circuits with a voltmeter to verify that they are deenergized.

Note: A manual operation handle is provided on the

transfer switch for maintenance purposes only.Do not use the manual operation handle to transfer the load with the power connected.

Use the manual operation handle to check the manual operation before energizing the transfer switch. Use the following manual operation procedures to verify that the contactor operates smoothly without binding.

Note: A contactor in normal and serviceable condition

operates smoothly without binding. Do not place the transfer switch into service if the contactor does not operate smoothly; contact an authorized distributor/dealer to service the contactor.

2. To manually operate the transfer switch, turn the attached handle by hand. See Figure 2-3. The maintenance handle turns in the opposite direction of the weight. It should operate smoothly without any binding. If it does not, check for shipping damage or construction debris.

3. Return the transfer switch to the Normal position.

1. Handle

2. Position indicators

3. Weight

4. Floating Weight

Figure 2-3 Manual Operation Handle, 30- 230 Amp

Switches

229

TP-7191 4/2116 Section 2 Installation

2.5.2 Manual Operation, 230A/600V and 260- 1200 Amp Switches

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

NOTICE

Improper operator handle usage. Use the manual operator

handle on the transfer switch for maintenance purposes only. Return the transfer switch to the normal position. Remove the manual operator handle, if used, and store it in the place provided on the transfer switch when service is completed.

The 260- 1200 amp standard-transition models use a detachable manual operating handle.

Manual Operation Test Procedure, 230A/600V and 260- 1200 Amp Standard-Transition Transfer Switches

1. Disable the generator set to prevent starting and disconnect all power sources before manually operating the transfer switch.

2. Remove the maintenance handle from the clip(s) on the left side of the transfer switch frame. See Figure 2-4.

3. 230- 600 amp switches: See Figure 2-5. Insert the maintenance handle into the hole in the shaft on the left side of the operator.

202

1. Maintenance handle

2. Storage clip(s)

Figure 2-4 Detachable Handle Storage (typical)

800- 1200 amp switches: See Figure 2-7. Insert

the maintenance handle into the hole in the molded hub on the left side of the operator.

4. Move the maintenance handle up or down as shown to manually operate the transfer switch. It should operate smoothly without any binding. If it does not, check for shipping damage or construction debris. See Figure 2-6.

5. Return the transfer switch to the Normal position.

6. Remove the maintenance handle and store it on the frame in the clips provided.

Note: Verify that the maintenance handle has been

removed before proceeding.

TP-7191 4/21 17Section 2 Installation

1. Handle

2. Hub

3. Position indicators (right side of contactor): O = open, C = closed

Figure 2-5 Manual Operation, 260- 600 Amp

Switches

283

ATS Position

Normal

Emergency

Handle Indicators

E:O

upper contacts open

N:C

lower contacts closed

E:C

upper contacts closed

N:O

Down

lower contacts open

Note: If Normal and Emergency connections are reversed,

this operation is also reversed.

Figure 2-6 Maintenance Handle Positions,

260- 1200 Amp Switches

1. Maintenance handle

2. Hub

3. Position indicators (right side of contactor): O = open, C = closed

Figure 2-7 Manual Operation, 800- 1200 Amp

Switches

202

TP-7191 4/2118 Section 2 Installation

2.6 Controller Connections

The c ontroller is mounted in a plastic housing on the inside of the transfer switch enclosure door.

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

NOTICE

Electrostatic discharge damage. Electrostatic discharge

(ESD) damages electronic circuit boards. Prevent electrostatic discharge damage by wearing an approved grounding wrist strap when handling electronic circuit boards or integrated circuits. An approved grounding wrist strap provides a high resistance (about 1 megohm), not a direct short, to ground.

Figure 2-8 shows the locations of the connectors on the controller. It is not necessary to open the cover to access the Ethernet, Modbusr, and input/output connectors.

Opening the cover. If necessary, open the plastic housing by pushing up on the latch on the bottom of the cover and swinging the cover up and out. The cover is hinged at the top. Lift the cover off the hinges to remove it completely, if necessary.

Note: Always replace the cover before energizing the

transfer switch controls.

1. Standard input/output connection

2. RS-485 connection TB2

3. Connection for optional current sensing kit

4. Optional I/O module connection P16

5. Access openings to optional RJ-45 connector

6. Latch

7. Ground wire

8. Contactor harness connection

Figure 2-8 Controller

Modbus is a registered trademark of Schneider Electric.

TP-7191 4/21 19Section 2 Installation

GM85884

2.6.1 Controller Input and Output Connections

The controller provides connections for two programmable inputs and two programmable outputs. See Figure 2-8 for the connector location and Figure 2-9 for the I/O connection specifications.

Each input has a signal and a return connection. The outputs are C form contacts with ratings of 500 mA @ 120 VAC. See Figure 2-10 for connections. Use #12- 24 AWG wire and tighten the connections to

0.5Nm(4.4in.lbs.).

For additional input and output connections, optional input/output modules are available. See Section 3.3 for instructions.

Main Board I/O Specifications

Output contact type Isolated form C (SPDT)

Output contact rating 1amp@30VDC,

500 mA @120 VAC

I/O terminals wire size #12- 24 AWG

Figure 2-9 Main Board I/O Specifications

2.6.2 Harness Connection

Verify that the contactor harness is connected at the controller base (or at the controller disconnect switch, if equipped). See Figure 2-11.

Note: Verify that the power is disconnected before

connecting or disconnecting the contactor harness.

2.6.3 Controller Ground

Verify that the grounding wire is connected from the controller’s lower left mounting stud to the enclosure. This connection provides proper grounding that does not rely upon the door hinges.

TB1

Output 1 NO

Output 1 C

Output 1 NC

Input 1B

Input 1A

Output 2 NO

Output 2 C

Output 2 NC

Input 2B

Input 2A

NC = normally closed NO = normally open C=common

Figure 2-10 Input and Output Connections

6866

1. Contactor Harness Connection

2. Ground Connection

GM85844

Figure 2-11 Contactor Harness and Controller

Ground Connections

TP-7191 4/2120 Section 2 Installation

2.7 Electrical Wiring

All internal electrical connections are factory-wired and tested. Field installation includes connecting the sources, loads, generator start circuit(s), and auxiliary circuits, if used.

Note: A protective device such as a molded-case circuit

breaker or fused disconnect switch MUST be installed on both sources of incoming power for circuit protection and use as a disconnect device.

Refer to the wiring diagrams provided with the transfer switch. Observe all applicable national, state, and local electrical codes during installation.

Install DC, control, and communication system wiring in separate conduit from AC power wiring.

It is not necessary to remove pole covers from the transfer switch for cabling. If you do remove them, reinstall them carefully.

WARNING

Accidental starting. Can cause severe injury or death.

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power sources

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

Making line or auxiliary connections. Hazardous voltage will cause severe injury or death. To prevent electrical

shock deenergize the normal powersource before making any line or auxiliary connections.

Grounding electrical equipment. Hazardous voltage will cause severe injury or death. Electrocution is possible

whenever electricity is present. Ensure you comply with all applicable codes and standards. Electrically ground the generator set and related equipment and electrical circuits. Turn off the main circuit breakers of all power sources before servicing the equipment. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

NOTICE

Foreign material contamination. Cover the transfer switch

during installation to keep dirt, grit, metal drill chips, and other debris out of the components. Cover the solenoid mechanism during installation. Afterinstallation, use the manual operating handle to cycle the contactor to verify that it operates freely. Do not use a screwdriver to force the contactor mechanism.

2.7.1 Source and Load Connections

Determine the cable size. Refer to the transfer switch

dimension drawing to determine the cable size and number of cables required for the transfer switch. Make sure that the cables are suitable for use with the transfer switch lugs. Watertight conduit hubs may be required for outdoor use.

Drill the entry holes. Cover the transfer switch to protect it from metal chips and construction grit. Then drill entry holes for the conductors at the locations shown on the enclosure drawings. Remove debris from the enclosure with a vacuum cleaner.

Note: Do not use compressed air to clean the switch.

Cleaning with compressed air can cause debris to lodge in the components and damage the switch.

TP-7191 4/21 21Section 2 Installation

Install and test the power cables. Leave sufficient slack in the power leads to reach all of the power connecting lugs on the power switching device. Test the power conductors before connecting them to the transfer switch. Installing power cables in conduit, cable troughs and ceiling-suspended hangers often requires considerable force. Pulling cables can damage insulation and stretch or break the conductor’s strands.

Test the cables after pulling them into position and before they are connected to verify that they are not defective and that they were not damaged during installation.

Install the cable spacers provided with 150- 230 amp switches as shown in Figure 2-12.

1½inch approximate

127

1. Cable spacers

Figure 2-12 Cable Spacers for 150 - 230 Amp

Switches

Connect the cables. Be careful when stripping insulation from the cables; avoid nicking or ringing the conductor. Clean cables with a wire brush to remove surface oxides before connecting them to the terminals. Apply joint compound to the connections of any aluminum conductors.

Refer to the wiring diagram provided with the switch.

The connection points on the contactor are labeled Normal, Emergency, and Load. Be sure to follow the phase markings (A, B, C, and N). For single-phase systems, connect to A and C.

Tighten the lugs. Verify that all connections are consistent with drawings before tightening the lugs. Tighten all cable lug connections to the torque values shown on the label on the switch. (See Figure 2-14 for a typical rating/torque label.) Carefully wipe off any excess joint compound after tightening the terminal lugs.

For load connections to bus bars, use a compression washer, flat washer, and a minimum grade 5 bolt and torque the connections to the values in Figure 2-13.

Bolt Torque

Bolt Size, inches

ft. lb. Nm

1/4 7 9.5

5/16 12 16.3

3/8 20 27.1 1/2 50 67.8 5/8 95 128.8 3/4 155 210.2

Figure 2-13 Tightening Torque for Bus Bars

SUITABLEFOR CONTROL OF MOTORS, ELEC DISCHARGE AND TUNGSTEN LAMPS, ELEC HEATING EQPT, WHERE THE SUM OF MOTOR FULLLOAD AMPSAND AMPS OF OTHER LOADS DOES NOT EXCEED THE SWITCH AMP RATING AND THE TUNGSTEN LOAD DOES NOT EXCEED % OF SWITCH RATING, 240V MAX. WHEN PROTECTED BY A CIRCUIT BREAKER WITHOUT AN ADJUSTABLE SHORT-TIME R ESPONSE ONLY OR BY FUSES THIS TRANSFER SWITCH IS RATED FOR USE ON ACIRCUI TCAPABLE OF DELIVERING NOT MORE THEN THE RMS SYMM AMPS AT THE VOLTAGE SHOWN. RMS SYMM

MAX

AMPS

X1000

35 22 600

42 480 GE SGL4,SGP4,TB4, 400

THLC4,TLB4 400 SGLA,SGL6,SGP6,TB6 SKHA,SKL8,SKP8,TKL

42 480I-T-ECJD6,HHJD6, 400

HHJXD6,HJD6,SCJD6,SHJD6 CLD6,HHLD6,HHLXD6,HLD6, SCLD6,SHLD6 CMD6,HMD6,HND6,MD6,MXD6, SCMD6,SHMD6,SMD6,SND6 800

42 480 SQUARE D LC ,LI

42 480 WESTH HKD,KDC,LCL, 400

TRI- PAC LA HLD TRI- PACNB 800

42 480 ABB S5

42 480 MERLIN GERIN

CJ600

BREAKER/MFR/TYPE

VOLTS

480 ANY

ANY

ANY ANY

100

AMPS

MAX PER NEC PER NEC

600

800

400

600

800

600

800

400

600

400

800

600

Note: Connect the source and load pha ses as

indicated by the markings and dra wings to prevent short circuits and to prevent phasesensitive load devices from malfunctioning or operating in reverse.

200 480 FUSE ANY CLASS J

USE 75 C MIN. CU/AL WIRE FOR PO WER CONNECTIONS. USE 60 C MIN. CU WIRE FOR CONTROLS.

USE COPPER OR ALUMINUM WIRE

FOR POWER TERMINA LS RECOMMENDED TIGHTENING TORQUE 600 IN- LBS

483500- 007

REV

600

1. Torque specification

Figure 2-14 Typical Rating/Torque Label

007

TP-7191 4/2122 Section 2 Installation

2.7.2 Engine Start Connection

WARNING

Accidental starting. Can cause severe injury or death.

Disabling the generator set. Accidental starting can cause severe injury or death. Before working on the

generator set or equipment connected to the set, disable the generator set as follows: (1) Press the generator set off/reset button to shut down the generator set. (2) Disconnect the power to the battery charger, if equipped. (3) Remove the battery cables, negative (- ) lead first. Reconnect the negative (- ) lead last when reconnecting the battery. Follow these precautions to prevent the starting of the generator set by the remote start/stop switch.

Prevent the generator set from starting by pressing the OFF button on the generator controller; disconnecting power to the generator engine start battery charger, if installed; and disconnecting all generator engine start battery cables, negative (- ) leads first.

Connect the generator set remote starting circuit to the engine start connections. On 30- 230 amp models, the engine start terminals are located on the transfer switch contactor assembly and labeled with a decal. See Figure 2-15. On larger models, the engine start terminal block is located on a bracket on the right side of the enclosure. See Figure 2-16 for the location of theengine start terminal block. Refer to the generator set installation manual for wire size specifications.

6126

16 (Do not use)

1. Engine start contacts 14 and 15

Figure 2-15 Engine Start Contacts, 30- 230 Amp

Switches

Engine Start Contacts

Contact Rating 2 A @ 30 VDC/250 VAC

ref ADV- 8570

1. Engine start connection terminal block location

Figure 2-16 Engine Start Contact Terminal Block,

230A/600V and 260- 1200 Amp Switches

TP-7191 4/21 23Section 2 Installation

2.7.3 Auxiliary Contacts

Connect the auxiliary contacts to customer-supplied alarms, remote indicators, or other devices. Auxiliary contacts provide contacts that close when the transfer switch is in the Normal position and contacts that close when the transfer switch is in the Emergency position.

Figure 2-17 lists the number of contacts available by ATS model and size (amps).

D On 30- 230 Ampunits, the contacts are located on the

right side of the contactor. See Figure 2-18.

D On 230A/600V and 260- 1200 Amp units, the

contacts are located on the left side of the contactor. See Figure 2-19. See Figure 2-20 for typical connections.

Refer to the wiring diagrams provided with the transfer switch for specific auxiliary contact connection information.

Follow the wire size and tightening torque specifications shown on the decal on the transfer switch.

STANDARD

6126

Auxiliary Position Indicating Contacts

(rated 10 amps @ 32 VDC/250 VAC)

Number of Contacts Indicating

Switch Rating,

Amps

30- 230 2, 2 1, 1

260- 1200 8, 8 —

Normal, Emergency

Standard

Optional

Figure 2-17 Auxiliary Contacts

32 30

13 11

STANDARD

35 33

OPTIONAL

1. Auxiliary contacts (contacts shown with contactor in Normal position)

Figure 2-18 Auxiliary Contacts, 30- 230 Amp Transfer

Switches

TP-7191 4/2124 Section 2 Installation

GM115522

Figure 2-20 Typical Auxiliary Contact Connection,

230- 1200 Amp Transfer Switches (see Figure 2-19 and schematic diagram)

2.8 Communication and Accessory Connections

ref GM110688

See Section 3 for accessory and communication connection instructions.

2.9 Functional Tests

After completion of the mechanical installation and all electrical connections, perform the functional tests described in Section 5. The procedures in Section 5 are required to complete the installation and startup of the transfer switch.

ref GM10757

1. Auxiliary contacts (see the schematic diagram for contacts closed on Normal or closed on Emergency)

Figure 2-19 Auxiliary Contact Connection Locations,

230A/600V and 260- 1200 Amp Transfer Switches

TP-7191 4/21 25Section 2 Installation

Notes

TP-7191 4/2126 Section 2 Installation

Section 3 Communication and Accessory Connections

3.1 Introduction

This section explains the connection of communication cables and selected accessories.

Also refer to the following documentation for instructions to install, connect, and operate optional accessories.

D Transfer switch wiring diagrams.

D Installation instructions or diagrams provided with

loose accessory kits.

D Controller Operation Manual. See List of Related

materials in the Introduction section of this manual for document numbers.

3.2 Communication Connections

The Decision-Makerr MPAC 1200 controller is equipped with a USB port and a Modbus port with an RS-485 connector. An Ethernet communication board is optional.

3.2.1 USB Port SiteTech Connection

GM85888

1. USB connection (below port cover)

Figure 3-1 USB Connection for SiteTech

3.2.2 Modbus Connection

DANGER

A personal computer and Kohlerr SiteTecht software can be used for changing controller settings. Use a USB cable to connect the controller to a personal computer.

See Figure 3-1 for the USB port location on the front of the controller assembly. Remove the small port cover anduseaUSBcablewithamini-Bconnectortoconnect the controller’s USB port to the computer.

See TP-6701, SiteTech Software Operation Manual, for instructions to use the software. Disconnect the USB cable from the controller and replace the port cover when finished.

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power sources

See Figure 3-2 for the RS-485 Modbus connector location.

Use serial connections to TB2 on the controller to connect the transfer switch to a personal computer for system monitoring, the optional remote annunciator, or a Modbus network. See Figure 3-4.

Notice that a 121 ohm terminating resistor is recommended on the last device in a network. If there is

TP-7191 4/21 27Section 3 Communication and Accessory Connections

only one device, a terminating resistor may be required depending on the cable distance and communication speed. Long cables and high speeds will increase the need for a terminating resistor.

TheserialportisanisolatedRS-485portwith connection speeds of 9.6, 19.2, and 57.6 kbps. Use shielded twisted-pair cable to connect to the RS-485 connectors on the controller’s terminal strip TB2 for serial connections. For connectionto a PC, use a USB to RS-485 converter.

Input

GND1

Cable shield

A1 (- )

B1 (+)

Connect the Modbus input and output to the terminals shown in Figure 3-3. Use #12-24 AWG shielded, twisted-pair wire. Belden cable #9841 or equivalent is recommended. Connect one end of the shield to ground. Leave the other end of the shield disconnected. Tighten the connections to 0.5 Nm (4.4 in. lb.).

Use Modbus RTU (remote terminal unit) protocol for communication through the serial port. A map of the Modbus codes for this controller is available. Contact your local distributor/dealer.

Note: Modbusr applications require a Modbus

software driver written by a trained and qualified systems programmer.

TB2

GND1

B1 (+)

A1 (- )

Cable shield

Output

Customer connections

Figure 3-3 Modbus RS-485 Connections

GM85884

1. RS-485 Modbus connections

2. Access opening for RS-485 cables

Figure 3-2 Modbus Connections (controller cover

removed for illustration only)

TP-7191 4/2128 Section 3 Communication and Accessory Connections

3.2.3 Ethernet Connection

PCPC

USB port

USB to RS-485 port

converter

Terminating resistor

may be required [

(121 Ohms)

USB port

USB to RS-485

port converter

RS-485 *

Out

In Out

Out

Device

Last

Device

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power sources

Terminating resistor [,

(121 Ohms)

* Use Belden #9841 or equivalent shielded, twisted-pair

communication cable for RS-485 connections. Ground one end of the cable shield. Leave the other end of the cable shield disconnected.

[ Long cables and high communication speeds will require

a terminating resistor. Use 121 ohm resistor X-6058-27.

Figure 3-4 Serial Connections

The Ethernet communication accessory board is required for connection to the Ethernet. The Ethernet communication board is an optional accessory for the MPAC 1200 controller. The communication board connects to the controller board as shown in Figure 3-5.

GM85884

1. Ethernet communication board with RJ-45 connector

2. Access opening for Ethernet cable

Figure 3-5 Ethernet Board (controller cover

removed for illustration only)

The Ethernet communication accessory board allows the transfer switch to be connected to a building’s Ethernet network to communicate with personal computers connected to the same subnet.

TP-7191 4/21 29Section 3 Communication and Accessory Connections

Note: For an ethernet connection, obtain an IP address

and subnet mask number fr om the local system administrator.

Ethernet Port. The ethernet port is a standard RJ-45 jack. See Figure 3-5 for the location of the Ethernet port. Use Category 5e or better cable to connect the controller to the building’s network.

Use the controller’s Setup menus or a personal computer connected to the controller’s USB port and Kohler SiteTech software to set the communication parameters. The Ethernet communication board may have a default IP address assigned at the factory for test purposes. See Figure 3-6. Change the IP address to an address owned by the user. See the controller operation manual for instructions to set the communication parameters.

The transfer switch controller does not operate as a Modbus-to-Ethernet converter for other devices in a network. For multiple device networks connected to the personal computer through the Ethernet, use a Modbus-to-Ethernet converter for the other devices in the network. See Figure 3-7 and instruction sheet TT-1405, provided with the converter, for connection instructions.

The controller can communicate with up to five (5) simultaneous TCP/IP (ethernet) connections. These five connections do not include the RS-485 serial port. In the extreme case, five users may be communicating with the controller via TCP/IP network connections and another may be communicating through the serial port, for a total of six (6) communication channels. As the controller is asked to communicate with more and more outside devices, the communication will slow down.

Modbusr TCP/IP

Category 5e

IP xx.xx.xx.02

Note: The PC and the ATS must be on the same subnet.

Note: A crossover cable can be used to connect the PC

to the ATS controller through the Ethernet port.

Figure 3-6 Remote Network (Ethernet) Connection

Modbusr

TCP/IP

IP xx.xx.xx.02

Modbusr

TCP/IP

Ethernet Network

Modbusr TCP/IP

Category 5e

Modbusr TCP/IP

Category 5e

Modbusr TCP/IP

Category 5e

Converter,

Modbusr/Ethernet

IP xx.xx.xx.05

Modbusr

RTU

RS-485

MPAC

Controller with

Ethernet comm.

board

IP xx.xx.xx.03

MPAC

Controller with

Ethernet comm.

board

IP xx.xx.xx.03

Device

RS-485

IP xx.xx.xx.01

Figure 3-7 Ethernet Connections to Multiple-Device Network

Terminating resistor

(121 Ohms)

Device

RS-485

Last device

TP-7191 4/2130 Section 3 Communication and Accessory Connections

3.3 Accessory Modules

3.3.1 Accessory Module Mounting

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power sources

Mount the accessory modules on the module mounting plate. Starting at the end of the module mounting assembly nearest the cable connection, install any I/O modules first, then install the alarm board, if used. The external battery module, if used, must be the last module. See Figure 3-9. The alarm board has a fixed Modbus address = 5.

Note: Some models may have the I/O module

assembly installed with the cable connection end pointing to the side or the bottom. Regardless of the actual orientation of the assembly, the I/O modules must be installed closest to the cable connection, followed by the alarm module and then the external battery module, if used.

Accessory modules are available with the MPAC 1200 controller. This section provides specifications and field connection information for factory-installed accessory modules. If the modules are not factory-installed, follow the instructions provided with the kits to install the mounting assembly and modules.

The transfer switch uses a standard bus system for connecting accessory modules to the controller. This bus incorporates a standard serial communication interface for passing data back and forth between the main logic board and the assemblies on the expansion bus.

The module mounting kit holds up to five optional modules. Add t he current draw for all modules installed to determine the total current draw. See Figure 3-8. The total current drawn by all modules must not exceed 300 mA. If an External Battery Module is installed and connected to a battery, there is no current restriction. The External Battery Module, if used, must be the last board on the bus.

Module Current Draw Specifications, mA

Alarm Module 75

Standard I/O Module 75

High Power I/O Module 100

Note: EBSM required if total current is higher than 300 mA.

Figure 3-8 Module Current Requirements

1. Cable connection (defined as the TOP regardless of orientation)

2. I/O modules (if equipped)

3. Alarm module (if equipped)

4. External battery module (must be last, if equipped)

5. Mounting plate

Figure 3-9 Module Mounting

GM46258

TP-7191 4/21 31Section 3 Communication and Accessory Connections

3.3.2 Input/Output (I/O) Modules

Two types of input/output modules are available. The standard I/O Module has two inputs and six outputs. The high-power I/O module has two inputs and three outputs. See Figure 3-10 through Figure 3-13 for I/O module illustrations and specifications.

1. Input LEDs 7 and 8 for inputs 1 and 2

2. Input connector (see Figure 3-14)

3. Output connector

4. Output LEDs 1- 6

GM41093

Figure 3-10 Standard Input/Output Module

Inputs

Available Inputs 2

Input Definition Contact Closure

Current 5mAMax

Connection Type Terminal Strip

Wire Size #14-24 AWG

Max Distance 700 feet

Outputs

Outputs Available 6

Contact Type Form C (SPDT)

Contact Voltage Rating

Connection Type Terminal Strip

Wire Size #14-24 AWG

2A@30VDC 500 mA @ 125 VAC

Figure 3-11 Standard I/O Module Specifications

1. Input LEDs 1 and 2

2. Input connector (see Figure 3-14)

3. Output connector

4. Output LEDs 3- 5 for outputs 1, 2, and 3

GM42186

Figure 3-12 High-Power Input/Output Module

Inputs

Available Inputs 2

Input Definition Contact Closure

Current 5mAMax

Connection Type Terminal Strip

Wire Size #14-24 AWG

Max Distance 700 feet

Outputs

Outputs Available 3

Contact Type Form C (SPDT)

12 A @ 24 VDC

Contact Voltage Rating

Connection Type Terminal Strip

Wire Size #14-24 AWG

12 A @ 250 V AC 10 A @ 277 V AC 2A@480VAC

Environmental Specifications

Temperature -40Cto85C(-40Fto185F)

Humidity 35% to 85% noncondensing

Figure 3-13 High-Power I/O Module Specifications

TP-7191 4/2132 Section 3 Communication and Accessory Connections

Use 14-24 AWG cable to connect to inputs and outputs. See Figure 3-14.

3.3.3 External Battery Supply Module (EBSM)

LEDs on the module circuit board light to indicate that each input or output is active.

Note: Each I/O module must have unique address.

Use the address DIP switches on the I/O module to assign a unique (different) address to each module as shown in Figure 3-15. Assign addresses in order from 1 to 4. An LED for each DIP switch lights to indicate that theswitchisclosed.

The alarm module’s fixed address is 5. The battery module’s fixed address is 6.

See the controller operation manual for instructions to assign functions to each input and output. Inputs and outputs can also be assigned using a personal computer with Kohlerr SiteTecht software or over Modbus. See TP-6701, SiteTech Operation Manual, or TP-6113, Modbus Protocol Manual.

INPUT 1

INPUT 2

The external battery supply module kit allows connection to the generator set engine start battery(ies) or other batteries to provide 12 VDC power to the ATS controller. The external battery supply module kit is required for the following applications:

D Systems using extended engine start time

delays. The EBSM provides power to the ATS controller during extended time delays longer than 15 seconds, when neither the Normal nor the Emergency source is available.

D Installations with frequent utility power outages.

The EBSM provides power to the ATS controller when neither source is available, preserving the controller’s backup battery.

D Transfer switches equipped with multiple

accessory modules that require a total of more than 300 mA current. SeeFigure3-8.

The EBSM produces 2 amps at 12 VDC with 9- 36 VDC input. The EBSM input is reverse-polarity protected. The EBSM outputs a low battery voltage signal when the external battery voltage falls below 11 VDC for a 12-volt system or 22 VDC for a 24-volt system. The module is showninFigure3-16.

Figure 3-14 I/O Module Input Connections

(TB1 or TB10)

Both switches OFF

Address=1 shown

DIP Switch

1 2

Off Off 1

On Off 2

Off On 3

On On 4

Address

Figure 3-15 Address DIP Switch Settings

refGM41093

1. Connector P20

2. LED indicators

3. Battery input connection terminal block TB13

4. 12/24 volt DIP switch SW11-1. OFF=12 VDC, ON = 24 VDC

Figure 3-16 External Battery Supply Module

GM42227-A

TP-7191 4/21 33Section 3 Communication and Accessory Connections

The external battery supply module kit includes one external battery supply circuit board and the circuit board mounting components. A module mounting kit is required for installation of the external battery supply module. See Section 3.3.1. Obtain a module mounting kit if one is not already installed and follow the instructions provided with the kits to install the mounting assembly and modules.

ThebatteryvoltageselectionDIPswitchSW11-1allows selection between 12-volt and 24-volt systems for low battery voltage sensing and indication. Connect one or two batteries to the external battery supply module. Use a battery charger to maintain the battery(ies) connected to the EBSM.

DIP Switch SW11-1 Setting Battery Voltage

OFF 12 VDC

ON 24 VDC

Figure 3-17 Battery Voltage Selection

EBSM Connection and Voltage Setting

1. Use #14-28 AWG wire to connect one or two batteries to terminal block TB13. (A second battery can be connected but is not required.) Follow the markingontheboardforthepositive(+)and negative (- ) connections. See Figure 3-16 and Figure 3-17.

3.3.4 Alarm Module

See Figure 3-18 for the optional alarm module. A module mounting kit is required for installation of the alarm module. See Section 3.3.1.

The functions provided by this board are:

D 90 dB Audible alarm (any alarm function can be

programmed to trigger the audible alarm)

D Chicago alarm operation

D Preferred source selection

D Supervised transfer control (supervised transfer

control switch required)

D Connection for external alarm

The alarm board has a fixed address = 5.

Note: If the battery connections are reversed, red

LED1 or LED2 will light. See Figure 3-16.

2. Set voltage selector switch SW11-1 to 12 or 24VDC. See Figure 3-16 and Figure 3-17. Switch SW11-2 is not used.

Note: The EBSM has no address switches but

must be the last board on the bus.

1. Supervised Transfer Switch Connection, P22

2. External Alarm Connection, TB 14

3. Alarm Indicator, LED1

4. DIP Switches

Figure 3-18 Alarm Module

GM40764

TP-7191 4/2134 Section 3 Communication and Accessory Connections

Alarm Board DIP Switches

Audible Alarm Setup

There are four DIP switches on the alarm module board. Some of the switches are not used. See Figure 3-19. To enable the preferred source s election, set DIP switch 1 to ON. If the supervised transfer switch is installed on the ATS,setDIPswitch2toON.

DIP Switch Function

1 Preferred source selection

2 Supervised transfer enable

3 Not used

4 Not used

Figure 3-19 Alarm Board DIP Switches

Preferred Source Selection

The alarm module is required for preferred source selection. To enable the preferred source selection, set DIP switch 1 to ON. Then see the controller operation manual for instructions to select Source N or Source E as the preferred source.

External Alarm

A customer-supplied external alarm horn can be connected to the alarm module at terminal block TB14. Connect to the normally open or normally closed contact as recommended by the alarm manufacturer’s instructions. See Figure 3-20.

Item Specification

Wire Size #12-22 AWG Cu

Contact Voltage Rating

500mA@120VAC

250mA@240VAC

The alarm board is equipped with a 90 dB audible alarm. The audible alarm can be set to sound under selected fault conditions. Use the Common Alarms Setup menu to assign functions to the audible alarm. See the controller operation manual for instructions to set Audible Alarm: Y for each function that should trigger the alarm.

Alarm Operation, Normal Mode

In Normal Mode, the horn sounds anytime a fault event happens in the system. The horn continues to sound unless the alarm silence button is pressed. When the fault is cleared, the alarm silence is ended and reset for the next alarm.

Alarm Operation, Chicago Alarm Mode

Chicago Alarm mode requires the horn to sound and a lamp or LED to light when the switch is in the emergency (non-preferred) position. The horn continues to sound unless the alarm silence button is pressed. When the fault is cleared, the alarm silence is ended and reset for the next alarm.

For Chicago Alarm Mode, use the Common Alarm Setup menu to assign the necessary faults and conditions to the audible alarm. See the controller operation manual for instructions to assign common faults. Be sure to assign the Contactor in Standby condition to trigger the audible alarm.

A remote alarm or indicator light can also be connected to the alarm board to indicate the alarm condition, as described previously. See External Alarm.

Figure 3-20 External Alarm Connection

Specifications

TP-7191 4/21 35Section 3 Communication and Accessory Connections

Alarm Silence Mode

In Alarm Silence Mode, the horn is disabled. Alarm Silenced appears on the display and the system alert LED lights.

The Alarm Silenced condition can be assigned to a programmable output. See the controller operation manual for instructions to assign outputs.

Instructions to Silence the Alarm in Normal and Chicago Alarm Modes

When the alarm is activated, the word Alarm appears on the main display menu above the first button. See Figure 3-21. Press the Alarm button to open the Reset menu. Then press the button labeled Reset to silence the alarm.

System Ready LD Exer 12/14 @ 16:00 Norm 480V Emer 480V

Alarm View Set Test

Reset

To Silence Alarm

BYReset Main

Reset

Status or Fault Description

Alarm Silenced

BYReset Main

Figure 3-21 Alarm Silence

3.4 Heater

DANGER

Hazardous voltage. Will cause severe injury or death.

Disconnect all power sources before opening the enclosure.

Servicing the transfer switch. Hazardous voltage will cause severe injury or death. Deenergize all power sources

An anti-condensation heater kit is available. The strip heater is controlled by a hygrostat to raise the temperature inside the enclosure above the dew point to prevent condensation. Figure 3-22 shows a typical location of the heater kit components inside the enclosure.

The installer must connect 120 VAC power to the terminal block near the hygrostat. See Figure 3-23 and Figure 3-24. The heater and hygrostat are connected to power through a 15-amp circuit breaker.

The relative humidity setting on the hygrostat is adjustable from 35% to 95%. A setting of 65% is recommended.

Because of space limitations in the smaller enclosures, 30- 225 Amp Model KSS switches can include either an enclosure heater or a surge protection device (SPD), but not both.

TP-7191 4/2136 Section 3 Communication and Accessory Connections

Right Side View

1. Hygrostat assembly, see Figure 3-23

2. Strip heater with guard

GM71056

1. Circuit breaker

2. Relative humidity adjustment c ontrol

3. 120 VAC power connection terminal block (or transformer for some kits)

Figure 3-23 Hygrostat Assembly, Typical

refADV- 8570

Figure 3-22 Heater Location, Typical

TP-7191 4/21 37Section 3 Communication and Accessory Connections

GM71278

Figure 3-24 Heater Connections

TP-7191 4/2138 Section 3 Communication and Accessory Connections

Section 4 Scheduled Maintenance

Regular preventive maintenance ensures safe and reliable operation and extends the life of the transfer

See the Service Assistance section in this manual for

how to locate a local distributor/dealer. switch. Preventive maintenance includes periodic testing, cleaning, inspection, and replacement of worn or missing components.

The transfer switch controller Operation Manual

contains the Service Schedule and other maintenance

information. Refer to the Operation Manual shipped with Have maintenance or service performed by a local authorized distributor/dealer. Maintenance and service

the transfer switch, or see Figure 4-1 for the Operation

Manual part number. must comply with all applicable codes and standards.

Keep records of all maintenance or service.

Operation Manual Part Number

Operation Manual, Decision-Makerr MPAC 1200 Controller

TP-6866

Figure 4-1 Operation Manual

TP-7191 4/21 39Section 4 Scheduled Maintenance

Notes

TP-7191 4/2140 Section 4 Scheduled Maintenance

Section 5 Functional Tests and Setup

5.1 Introduction

Be sure to perform all of the functional tests described in this section before putting the transfer switch into operation.

The functional tests include the following checks:

D Manual Operation Test D Voltage Checks D Lamp Test D Automatic Operation Test

Note: Perform these checks in the order presented to

avoid damaging the ATS.

Read all instructions on the labels affixed to the automatic transfer switch before proceeding.

To complete the installation, follow the instructions in this section to:

D Set the time, date, and exercise schedule on the

controller.

D Perform the system startup procedures listed on the

startup form.

D Register the unit using the Kohlerr online Warranty

Processing System.

5.2 Manual Operation Test

If you have not already done so, test the contactor manual operation before proceeding to the voltage check and electrical operation test.

Note: Disable the generator set and disconnect the

power by opening the circuit breakers or switches for both sources before manually operating the transfer switch.

5.3 Voltage Check

The voltage, frequency, and phasing of the transfer

switch and the power sources must be the same to avoid

damage to loads and the transfer switch. Compare the

voltage and frequency ratings of the utility source,

transfer switch, and generator set, and verify that the

ratings are all the same.

Use the voltage check procedure explained in this

section to verify that the voltages and phasing of all

power sources are compatible with the transfer switch

before connecting the power switching device and

controller wire harnesses together.

Follow the instructions provided with the generator set

to prepare the generator set for operation.

Read and understand all instructions on installation

drawings and labels on the switch. Note any optional

accessories that have been furnished with the switch

and review their operation.

Note: Source N is the source connected to the normal

side of the contactor. Source E is the source connected to the emergency side of the contactor. Verify that the source leads are connected to the correct lugs before proceeding.

The voltage check procedure requires the following

equipment:

D A digital voltmeter (DVM) with electrically insulated

probes capable of measuring the rated voltage and frequency

D A phase rotation meter

Follow the instructions in the Installation Section to check the transfer switch manual operation.

A contactor in normal and serviceable condition transfers smoothly without binding when operated manually. Do not place the transfer switch into service if the contactor does not operate smoothly without binding; contact an authorized distributor/dealer to service the contactor.

TP-7191 4/21 41Section 5 Functional Tests and Setup

DANGER

Hazardous voltage. Will cause severe injury or death.

Only authorized personnel should open the enclosure.

4. Use a phase rotation meter to check the phase rotation at the Source N (normal) terminals. Rewire thetransferswitchSourceNterminalstoobtainthe correct phase sequence if necessary.

Note: The default setting for the phase rotation on

the controller is ABC. If the application uses a phase rotation of BAC, refer to the controller Operation Manual for instructions to change the phase rotation setting on the controller.

T esting live electrical circuits. Hazardous voltage or current will cause severe injury or death. Have trained and

qualified personnel take diagnostic measurements of live circuits. Use adequately rated test equipment with electrically insulated probes and follow the instructions of the test equipment manufacturer when performing voltage tests. Observe the following precautions when performing voltage tests: (1) Remove all jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Do not touch the enclosure or components inside the enclosure. (4) Be prepared for the system to operate automatically.

(600 volts and under)

Voltage Check Procedure

1. If Source N is a generator set, move the generator set master switch to the RUN position. The generator set should start.

2. Close the Source N circuit breaker or switch.

3. Use a voltmeter to check the Source N (normal) phase-to-phase and phase-to-neutral (if applicable) terminal voltages and frequency.

a. If Source N is the utility and the measured input

does not match the voltage and frequency shown on the transfer switch nameplate, STOP! Do not proceed further in installation because the transfer switch is not designed for the application—call your distributor/dealer to order the correct transfer switch.

b. If Source N is a generator set and the generator

set output voltage and frequency do not match the nominal system voltage and frequency shown on the transfer switch nameplate, follow the manufacturer’s instructions to adjust the generator set. The automatic transfer switch will only function with the rated system voltage and frequency specified on the nameplate.

5. If the source is a generator set, stop the generator set by moving the master switch to the OFF position.

6. Disconnect Source N by opening upstream circuit breakers or switches.

7. Repeat steps 1 through 5 for Source E. Then proceed to step 8.

8. Disconnect both sources to the transfer switch by opening the circuit breakers or switches.

9. Close and lock the transfer switch enclosure door.

10. Reconnect both power sources by closing the circuit breakers or switches.

11. Move the generator set master switch to the AUTO position.

Note: If the engine cooldown time delay setting is

not set to zero (default setting), the generator set may start and run until the Engine Cooldown Time Delay ends.

12. Perform the lamp test and then proceed to the automatic operation test.

5.4 Lamp Test

Refer to the controller Operation Manual for instructions to perform a lamp test. Verify that all controller LEDs or lamps light during the test.

5.5 Automatic Operation Test

Check the transfer switch’s automatic control system immediately after the voltage check. Refer to the controller Operation Manual for instructions to run the automatic operation test.

Note: Close and lock the enclosure door before starting

the test procedure.

TP-7191 4/2142 Section 5 Functional Tests and Setup

5.6 System Setup

5.8 User Interface Cover

Set the controller’s current time and date. See the controller Operation Manual for instructions.

The transfer switch is factory-set with default settings for time delays and other parameters. See the controller Operation Manual for instructions to view and change settings, if necessary.

Note: Use caution when changing transfer switch

settings. The source voltage and frequency settings must match the values shown on the transfer switch nameplate.

5.7 Exerciser Setup

Set the exerciser to start and run the generator set at least once a week. See the controller Operation Manual for instructions.

The gasket-sealed, hinged user interface cover prevents unauthorized access to the transfer switch controls and protects the user interface from harsh environmental conditions. The cover is available as an optional accessory for NEMA 1 enclosures. NEMA 3R enclosures include the cover as standard equipment.

Use a customer-supplied padlock to lock the cover.

5.9 Startup Notification

Perform the system start up procedure explained on the Startup Notification Form. The Startup Notification Form covers all equipment in the power system. Complete the Startup Notification Form and register the power system using t he Kohlerr online Warranty Processing System.

TP-7191 4/21 43Section 5 Functional Tests and Setup

Notes

TP-7191 4/2144 Section 5 Functional Tests and Setup

Appendix A Abbreviations

The following list contains abbreviations that may appear in this publication.

A, amp ampere ABDC after bottom dead center AC alternating current A/D analog to digital ADC advanced digital control;

adj. adjust, adjustment ADV advertising dimensional

Ah amp-hour AHWT anticipatory high water

AISI American Iron and Steel

ALOP anticipatory low oil pressure alt. alternator Al aluminum ANSI American National Standards

AO anticipatory only APDC Air Pollution Control District API American Petroleum Institute approx. approximate, approximately APU Auxiliary Power Unit AQMD Air Quality Management District AR as required, as requested AS as supplied, as stated, as

ASE American Society of Engineers ASME American Society of

assy. assembly ASTM American Society for Testing

ATDC after top dead center ATS automatic transfer switch auto. automatic aux. auxiliary avg. average AVR automatic voltage regulator AWG American Wire Gauge AWM appliance wiring material bat. battery BBDC before bottom dead center BC battery charger, battery

BCA battery charging alternator BCI Battery Council International BDC before dead center BHP brake horsepower blk. black (paint color), block

blk. htr. block heater BMEP brake mean effective pressure bps bits per second br. brass BTDC before top dead center Btu British thermal unit Btu/min. British thermal units per minute C Celsius, centigrade cal. calorie CAN controller area network CARB California Air Resources Board CAT5 Category 5 (network cable) CB circuit breaker CC crank cycle cc cubic centimeter CCA cold cranking amps ccw. counterclockwise CEC Canadian Electrical Code cert. certificate, certification, certified cfh cubic feet per hour

analog to digital converter

drawing

temperature

Institute

Institute (formerly American Standards Association, ASA)

suggested

Mechanical Engineers

Materials

charging

(engine)

cfm cubic feet per minute CG center of gravity CID cubic inch displacement CL centerline cm centimeter CMOS complementary metal oxide

com communications (port) coml commercial Coml/Rec Commercial/Recreational conn. connection cont. continued CPVC chlorinated polyvinyl chloride crit. critical CSA Canadian Standards

CT current transformer Cu copper cUL Canadian Underwriter’s

CUL Canadian Underwriter’s

cu. in. cubic inch cw. clockwise CWC city water-cooled cyl. cylinder D/A digital to analog DAC digital to analog converter dB decibel dB(A) decibel (A weighted) DC direct current DCR direct current resistance deg.,  degree dept. department dia. diameter DI/EO dual inlet/end outlet DIN Deutsches Institut fur Normung

DIP dual inline package DPDT double-pole, double-throw DPST double-pole, single-throw DS disconnect switch DVR digital voltage regulator

PROM, EEPROM

E, emer. emergency (power source) ECM electronic control module,

EDI electronic data interchange EFR emergency frequency relay e.g. for example (exempli gratia) EG electronic governor EGSA Electrical Generating Systems

EIA Electronic Industries

EI/EO end inlet/end outlet EMI electromagnetic interference emiss. emission eng. engine EPA Environmental Protection

EPS emergency power system ER emergency relay ES engineering special,

ESD electrostatic discharge est. estimated E-Stop emergency stop etc. et cetera (and so forth)

substrate (semiconductor)

Association

Laboratories

e. V. (also Deutsche Industrie Normenausschuss)

electrically-erasable programmable read-only memory

engine control module

Association

Agency

engineered special

exh. exhaust ext. external F Fahrenheit, female FHM flat head machine (screw) fl. oz. fluid ounce flex. flexible freq. frequency FS full scale ft. foot, feet ft. lb. foot pounds (torque) ft./min. feet per minute ftp file transfer protocol ggram ga. gauge (meters, wire size) gal. gallon gen. generator genset generator set GFI ground fault interrupter

GND, gov. governor gph gallons per hour gpm gallons per minute gr. grade, gross GRD equipment ground gr. wt. gross weight H x W x D height by width by depth HC hex cap HCHT high cylinder head temperature HD heavy duty HET high exhaust temp., high

hex hexagon Hg mercury (element) HH hex head HHC hex head cap HP horsepower hr. hour HS heat shrink hsg. housing HVAC heating, ventilation, and air

HWT high water temperature Hz hertz ( cycles per second) IBC International Building Code IC integrated circuit ID inside diameter, identification IEC International Electrotechnical

IEEE Institute of Electrical and

IMS improved motor starting in. inch in. H in. Hg inches of mercury in. lb. inch pounds Inc. incorporated ind. industrial int. internal int./ext. internal/external I/O input/output IP internet protocol ISO International Organization for

J joule JIS Japanese Industry Standard k kilo (1000) Kkelvin kA kiloampere KB kilobyte (2 KBus Kohler communication protocol kg kilogram

ground

engine temp.

conditioning

Commission

Electronics Engineers

O inches of water

Standardization

bytes)

TP-7191 4/21 Appendix 45

kg/cm

kgm kilogram-meter kg/m

kilograms per square centimeter

kilograms per cubic meter kHz kilohertz kJ kilojoule km kilometer kOhm, k kilo-ohm kPa kilopascal kph kilometers per hour kV kilovolt kVA kilovolt ampere kVAR kilovolt ampere reactive kW kilowatt kWh kilowatt-hour kWm kilowatt mechanical kWth kilowatt-thermal Lliter LAN local area network L x W x H length by width by height lb. pound, pounds

lbm/ft

pounds mass per cubic feet LCB line circuit breaker LCD liquid crystal display LED light emitting diode Lph liters per hour Lpm liters per minute LOP low oil pressure LP liquefied petroleum LPG liquefied petroleum gas LS left side L

LWL low water level

sound power level, A weighted

LWT low water temperature m meter, milli (1/1000) Mmega(10

units), male

cubic meter

/hr. cubic meters per hour /min. cubic meters per minute

when used with SI

mA milliampere man. manual max. maximum MB megabyte (2

bytes) MCCB molded-case circuit breaker MCM one thousand circular mils meggar megohmmeter MHz megahertz mi. mile mil one one-thousandth of an inch min. minimum, minute misc. miscellaneous MJ megajoule mJ millijoule mm millimeter mOhm, mmilliohm MOhm, Mmegohm MOV metal oxide varistor MPa megapascal mpg miles per gallon mph miles per hour MS military standard ms millisecond m/sec. meters per second mtg. mounting MTU Motoren-und Turbinen-Union MW megawatt mW milliwatt F microfarad N, norm. normal (power source) NA not available, not applicable nat. gas natural gas NBS National Bureau of Standards NC normally closed

NEC National Electrical Code NEMA National Electrical

Manufacturers Association

NFPA National Fire Protection

Association Nm newton meter NO normally open no., nos. number, numbers NPS National Pipe, Straight NPSC National Pipe, Straight-coupling NPT National Standard taper pipe

thread per general use NPTF National Pipe, Taper-Fine NR not required, normal relay ns nanosecond OC overcrank OD outside diameter OEM original equipment

manufacturer OF overfrequency opt. option, optional OS oversize, overspeed OSHA Occupational Safety and Health

OSHPD Office of Statewide Health

Administration

Planning and Development

(California) OV overvoltage oz. ounce p., pp. page, pages PC personal computer PCB printed circuit board pF picofarad PF power factor ph.,  phase PHC Phillipsr head Crimptiter

(screw) PHH Phillipsr hex head (screw) PHM pan head machine (screw) PLC programmable logic control PMG permanent magnet generator pot potentiometer, potential ppm parts per million PROM programmable read-only

memory psi pounds per square inch psig pounds per square inch gauge pt. pint PTC positive temperature coefficient PTO power takeoff PVC polyvinyl chloride qt. quart, quarts qty. quantity R replacement (emergency)

power source rad. radiator, radius RAM random access memory RDO relay driver output ref. reference rem. remote Res/Coml Residential/Commercial RFI radio frequency interference RH round head RHM round head machine (screw) rly. relay rms root mean square rnd. round RO read only ROM read only memory rot. rotate, rotating rpm revolutions per minute RS right side RTDs Resistance Temperature

Detectors

RTU remote terminal unit RTV room temperature vulcanization RW read/write SAE Society of Automotive

Engineers scfm standard cubic feet per minute SCR silicon controlled rectifier s, sec. second SI Systeme international d’unites,

International System of Units SI/EO side in/end out sil. silencer SMTP simple mail transfer protocol SN serial number SNMP simple network management

protocol SPDT single-pole, double-throw SPST single-pole, single-throw spec specification specs specification(s) sq. square sq. cm square centimeter sq. in. square inch SMS short message service SS stainless steel std. standard stl. steel tach. tachometer TB terminal block TCP transmission control protocol TD time delay TDC top dead center TDEC time delay engine cooldown TDEN time delay emergency to

normal TDES time delay engine start TDNE time delay normal to

emergency TDOE time delay off to emergency TDON time delay off to normal temp. temperature term. terminal THD total harmonic distortion TIF telephone influence factor tol. tolerance turbo. turbocharger typ. typical (same in multiple

locations) UF underfrequency UHF ultrahigh frequency UIF user interface UL Underwriter’s Laboratories, Inc. UNC unified coarse thread (was NC) UNF unified fine thread (was NF) univ. universal URL uniform resource locator

(web address) US undersize, underspeed UV ultraviolet, undervoltage Vvolt VAC volts alternating current VAR voltampere reactive VDC volts direct current VFD vacuum fluorescent display VGA video graphics adapter VHF very high frequency Wwatt WCR withstand and closing rating w/ with WO write only w/o without wt. weight xfmr transformer

TP-7191 4/2146 Appendix

TP-7191 4/21

KOHLER CO., Kohler, Wisconsin 53044 Phone 920-457-4441, Fax 920-459-1646 For the nearest sales/service outlet in the US and Canada, phone 1-800-544-2444 KOHLERPower.com

Kohler KSSB User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual