THOMSON marathon TS 910 Series User manual

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TS 910
AUTOMATIC TRANSFER SWITCHES
OWNERS MANUAL
INSTALLATION, OPERATING &
SERVICE
PM140 Rev 0 12/02/09

TS 910 TRANSFER SWITCH
PM140 REV 0 12/02/09 1Thomson Technology
TABLE OF CONTENTS
1. PRODUCT REVISION HISTORY 1
2. EQUIPMENT STORAGE 1
3. NOTES TO INSTALLER 2
3.1. APPLICATION 2
3.2. CHECK EQUIPMENT DELIVERY 2
3.3. CHECK LINE VOLTAGE/AMPERAGE 2
3.4. INSTALLATION REQUIREMENTS 3
3.5. DIELECTRIC TESTING 5
4. GENERAL DESCRIPTION 6
4.1. PRODUCT MODEL CODE 6
4.2. TS 910 OPTIONAL ACCESSORIES 7
4.3. TYPICAL COMMISSIONING PROCEDURES 7
5. GENERAL THEORY OF OPERATION 8
5.1. AUTOMATIC SEQUENCE OF OPERATION 8
5.2. SERVICE ENTRANCE AUTOMATIC TRANSFER SWITCH OPERATION 8
6. OVER CURRENT PROTECTION 11
6.1. STANDARD TS 910 AUTOMATIC TRANSFER SWITCH 11
6.2. SERVICE ENTRANCE RATED TS 910 AUTOMATIC TRANSFER SWITCH 11
7. GENERAL NOTES ON SERVICING TRANSFER SWITCH MECHANISM 11
8. TRANSFER SWITCH MECHANISM OPERATION 12
8.1. AUTOMATIC OPERATION 12
8.2. MANUAL OPERATION 12
9. RECOMMENDED MAINTENANCE 15
10. FRONT INTERIOR VIEW (2 POLE 100A STANDARD ATS) 16

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11. FRONT INTERIOR VIEW (2 POLE 100A SERVICE ENTRANCE ATS) 17
12. FRONT INTERIOR VIEW (2 POLE 200A STANDARD ATS) 18
13. FRONT INTERIOR VIEW (2 POLE 200A SERVICE ENTRANCE ATS) 19
14. FRONT INTERIOR VIEW (2 POLE 400A STANDARD ATS) 20
15. FRONT INTERIOR VIEW (2 POLE 400A SERVICE ENTRANCE ATS) 21
16. ENCLOSURE DIMENSIONS/CABLE TERMINALS 22
17. REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES 22
17.1. TRANSFER SWITCH WITHSTAND CURRENT RATINGS 22
17.2. 100A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 23
17.3. 200A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 24
17.4. 400A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 25
17.5. INTERRUPTING CAPACITY CURRENT RATINGS (ALL SERVICE ENTRANCE
RATED MODELS) 25
18. TSC 9 TRANSFER SWITCH CONTROLLER 26
18.1. DESCRIPTION 26
18.2. ELECTROSTATIC DISCHARGE PRECAUTIONS 27
18.3. DIELECTRIC TESTING 27
18.4. TSC 9 FACEPLATE 28
18.5. TSC 9 FACEPLATE LIGHTS AND PUSHBUTTON OPERATION 29
18.6. TSC 9 PRINTED CIRCUIT BOARD 30
18.7. TSC 9 OPERATING INSTRUCTIONS 34
18.8. TSC 9 OPERATING MODE DESCRIPTIONS 35
18.9. TEST MODES 37
18.10. TRANSFER FAIL FAULT RESET 39
18.11. LAMP TEST 39
18.12. TIMER BYPASS 40
18.13. TSC 9 VOLTAGE SENSING 40

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18.14. TSC 9 GENERATOR FREQUENCY SENSING 40
18.15. TSC 9 CONFIGURATION INSTRUCTIONS 41
18.16. LOAD SHED 45
19. TS 910 SCHEMATIC DIAGRAM 47
20. TROUBLESHOOTING 48
21. REPLACEMENT PARTS 49
22. PRODUCT RETURN POLICY 50
23. NOTES 51
APPENDIX A – TYPICAL AUTOMATIC TRANSFER SWITCH COMMISSIONING
PRIOCEDURES 52
a) Pre-Energization Checks 52
b) Equipment Energization 53

TS 910 TRANSFER SWITCH
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1. PRODUCT REVISION HISTORY
The following information provides an historical summary of changes made to this product since the
original release.
Owners Manual Version
Rev 0 12/02/09 Original release.
Contact Thomson Technology, to obtain applicable instruction manuals or if in doubt about
any matter relating to installation, operation or maintenance. Soft copy of the most current
version is available at www.thomsontechnology.com.
NOTE: All information contained in this manual is for reference only and is subject
to change without notice.
2. EQUIPMENT STORAGE
The following procedures are required for correct storage of the transfer switch prior to installation.
CAUTION!!!
Failure to store equipment under the specified environmental conditions may cause
equipment damage and void warranty.
The transfer switch shall be stored in an environment with a temperature range not exceeding -4°to
+158° Fahrenheit (-20° to +70° Celsius) and a humidity range not exceeding 5%-95% non-
condensing. Before storing, unpack sufficiently to check for concealed damage. If concealed
damage is found, notify the ATS supplier and the Carrier immediately. Repack the transfer switch
with the original packing material (or equivalent). Protect from physical damage. Do not stack. Store
indoors in a clean, dry, well ventilated area free of corrosive agents including fumes, salt and
concrete/cement dust. Apply heat as necessary to prevent condensation.

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3. NOTES TO INSTALLER
DANGER!!!!
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical
personnel utilizing safe work practices and appropriate Personal Protective
Equipment (PPE). Failure to do so may cause personal injury or death
3.1. APPLICATION
The TS 910 Transfer Switch is designed and is Listed by Underwriters Laboratories (UL) to
Safety Standard UL 1008 for Transfer Switches for Optional Standby applications only. This
product is not intended for installation or operation on legally required standby
applications for emergency power systems as defined by the National Electrical Code.
3.2. CHECK EQUIPMENT DELIVERY
Upon delivery of the transfer switch, remove the product packaging and verify the product
has not been damaged.
WARNING: Damaged Transfer Switch equipment: Do not install or operate the transfer
switch if it appears damaged. Failure to follow these instructions can result in death,
serious injury, or equipment damage.
Check that the model number printed on the inside cover of the transfer switch is the same
as on the delivery note corresponding to the purchase order.
3.3. CHECK LINE VOLTAGE/AMPERAGE
The transfer Switch is designed for a maximum voltage of 120/240V, Single Phase 3 wire
with neutral. Verify the line voltage and amperage of the transfer switch matches the site
requirements. Note: The transfer switch can be configured for operation on 208V sources

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by way of configuration jumper. Refer to Section 18.15 CONFIGURATION JUMPERS of
this manual for further information.
WARNING: Do not install the transfer switch if either voltage or amperage does not match.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
3.4. INSTALLATION REQUIREMENTS
Before installing the transfer switch, review the following requirements:
3.4.1. Installation Codes/Permits and ATS Sizing
Suitable permits are typically required by local jurisdictions having authority prior to
installing standby generator sets and automatic transfer switches. Per NEC Article
702, Automatic transfer switches shall be sized for either a) entire load whole house,
load calculation per NEC 220, or b) Pre-selected “EM” panel(s) of load being served
or optional standby panel and transfer switch, or c) automatic load shedding feature
to reduce total load imposed on the generator, not to exceed the capacity of the
generator. The TS 910 transfer switch has automatic load shedding capabilities built-
in when load shedding control contact is connected. Refer to Load Shedding section
of this manual for further details.
3.4.2. Installation Location
The standard TS 910 transfer switch is designed for indoor wall mounting. For
applications requiring outdoor wall mounting, a NEMA 3R door kit is optionally
available. The transfer switch must be installed in an environment where the
temperature range is within +5° to +122° Fahrenheit (-15° to +50° Celsius) and
humidity range not exceeding 5%-95% non-condensing.
3.4.3. Power Cabling
All power cabling entering/exiting the enclosure must be installed in suitably sized
conduit per NEC requirements. Ampacity, type and voltage rating of current carrying
conductors must also comply with NEC requirements and local jurisdictions having
authority.
Refer to Section 16 ENCLOSURE DIMENSIONS/CABLE TERMINALS of this
manual for further details.

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3.4.4. Control Wiring
All control wiring for engine start, load shed, alarm and remote test must be installed
in separate conduits from all power cabling and must utilize suitably sized conduits
per NEC requirements. All control wiring shall be sized for minimum #14 AWG.
Control wiring type and voltage rating must also comply with NEC requirements and
local jurisdictions having authority.
3.4.5. Generator Set Automatic Operation
The TS 910 transfer switch operates in conjunction with any generator set with
remote automatic starting capabilities utilizing a 2 wire, remote start control contact
input. A dry contact is provided for remote generator starting control (contact closes
to start generator and opens to stop generator). Refer to Section 18.6.1.1 Customer
Interface Control Terminal Block of this manual for further details.
3.4.6. Upstream Overcurrent Protection (Non-Service Entrance Rated TS
910)
Non-Service Entrance Rated TS 910 transfer switch models do not contain any
integral over current protection and require upstream over current protection devices
for both Utility and Generator sources. The standard TS 910 is rated for 100%
continuous loading of all load types. Refer to Section 17 REQUIREMENTS FOR
UPSTREAM CIRCUIT PROTECTIVE DEVICES of this manual for further details.
3.4.7. Upstream Overcurrent Protection (Service Entrance Rated TS 910)
Service Entrance rated TS 910 transfer switch models contain integral over current
protection for the Utility source as standard. Service Entrance rated TS 910 transfer
switches do not contain any integral over current protection for the generator source
and requires upstream generator source over current protection. The Service
Entrance rated TS 910 is rated for 80% maximum continuous loading of all load
types. Refer to Section 17 REQUIREMENTS FOR UPSTREAM CIRCUIT
PROTECTIVE DEVICES of this manual for further details.
3.4.8. Withstand/Interrupting Current Ratings
Non-Service Entrance Rated TS 910 can withstand a maximum short circuit fault
current of 10kA (RMS, Symmetrical) @240V (100A and 200A Models) and 25kA
@240V 400A models when used with specific type/model of upstream circuit breaker.
Service Entrance rated TS 910 can interrupt a maximum short circuit fault on the