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Generac Power Systems TTS series Owner's Manual

200a automatic transfer switch
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TTS Series
TAS-200
200A Automatic Transfer Switch
Owner's Manual
Only qualified electricians or contractors
should attempt installation!
This manual should remain with the unit.
Model 006310-0
Model 006312-0
Model 006314-0
120/240V, 1-phase
120/208V, 3-phase
120/240V, 3-phase

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Summary of Contents for Generac Power Systems TTS series

  • Page 1 TTS Series TAS-200 200A Automatic Transfer Switch Owner's Manual Model 006310-0 120/240V, 1-phase Model 006312-0 120/208V, 3-phase Only qualified electricians or contractors  Model 006314-0 120/240V, 3-phase should attempt installation! This manual should remain with the unit.

  • Page 2: Table Of Contents

    Table of Contents Safety Rules ................1 General Information ..............2 Read the following information carefully  Introduction ................2 before attempting to install, operate or ser- Equipment Description ...............2 vice this equipment. Also read the instruc- Transfer Mechanism ..............3 tions and information on tags, decals, and Ratings —...

  • Page 3: Safety Rules

    Safety Rules • Extremely high and dangerous power voltages are present inside an installed transfer switch. Any contact with high voltage After this heading, read instructions that, if not terminals, contacts or wires will result in extremely hazardous, strictly complied with, could result in serious and possibly LETHAL, electric shock.

  • Page 4: General Information

    General Information 1.1 INTRODUCTION Modes of Protection The TVSS provides protection on all modes: This manual has been prepared especially for the purpose of famil- iarizing personnel with the design, application, installation, opera- • Single Phase (6): L-L, L-N, L-N, L-G, L-G and N-G. tion and servicing of the applicable equipment.

  • Page 5: Transfer Mechanism

    Installation 1.5 PANEL BOARD ENCLOSURE This UL listed transfer switch is used for emergency standby sys- tems only (NEC 700 and 701). Additional ratings are on the decals The standard TAS switch enclosure is a UL type 3R. UL type 3R attached to the inside of the enclosure door.

  • Page 6: Mounting

    Installation 2.3 MOUNTING Figure 3 — Typical 3-Pole Transfer Mechanism (200 Amp Shown) Mounting dimensions for the transfer switch enclosure are in this manual. This enclosure is configured for wall-mounting using the tabs provided, top and bottom. Handle transfer switches carefully when ...

  • Page 7: Connecting Start Circuit Wires

    Installation 2.5 CONNECTING START CIRCUIT WIRES 2.5.3 SECONDARY GENERATOR CONNECTIONS The 2-wire start connections for the secondary generator are to be 2.5.1 ON-SITE GENERATOR CONNECTIONS made at the terminal blocks labeled "TB1 - Secondary Generator Connections", the two terminals labeled "Control Auto Start/Stop". Connect suitable, approved wiring to transfer switch terminals This is typically done through a multi-wire cable to the secondary 178 and 183 (see the following chart).

  • Page 8: Operation

    Operation Figure 5 — Auxiliary Contact Diagram 3.1 FUNCTIONAL TESTS AND In the transfer switch enclosure, set the Maintenance Disconnect switch to MANUAL. This prevents the generator ADJUSTMENTS from starting automatically as soon as the UTILITY power source is turned OFF. Following transfer switch installation and interconnection, inspect If so equipped, turn the generator’s AUTO/OFF/MANUAL the entire installation carefully.

  • Page 9: Voltage Checks

    Operation Figure 6 — Actuating Transfer Switch 3.3 VOLTAGE CHECKS Step 2: With the handle attached to the actuating shaft, move handle in the direction of the arrow on the switch cover until it stops — DO NOT FORCE. Release handle slowly to release the spring in the switch box.

  • Page 10: Electrical Operation

    Operation Perform voltage checks as follows: 10. Turn ON the STANDBY (GENERATOR) power supply to the transfer switch by whatever means provided (such as the Inside the transfer switch enclosure, set the Maintenance main line circuit breaker). Disconnect switch to MANUAL. 11.

  • Page 11: Main Contacts At Normal (Utility)

    Operation 3.7 MAIN CONTACTS AT STANDBY NOTE: All systems are equipped with the Inphase Monitor function, (EMERGENCY) and advisory indicators on the HMI system status will indicate operation of the various solid state timers that control auto- LOAD terminals are connected to the standby (EMERGENCY) matic operation.

  • Page 12: Sequence Of Operation Settings

    Operation 3.8.4 SEQUENCE 4 - STANDBY VOLTAGE AND NOTE: Actual time between re-transfer back to UTILITY and engine FREQUENCY SENSORS shutdown is whichever is longer of the Engine Cool Down timer • If generator AC output voltage and frequency are above the volt- setting or any time remaining on Engine Minimum run timer.
  • Page 13 Operation 3.10.3 TRANSFER SWITCH SETTINGS #1 • EXERCISING: The Exercising indicator is green when the engine generator is running an exercise cycle. The Transfer Switch settings are divided into three screens. The Pushbutton Arrow second screen can be accessed by pressing the “right” arrow but- ton.
  • Page 14 Operation 3.10.5 TRANSFER SWITCH SETTINGS #3 Utility Fail Delay - This is the amount of time that the utility volt- age must remain out of range before a utility fail sequence will be This is the third screen of the Transfer Switch settings screens. initiated.
  • Page 15 Operation Figure 15 - Exercise and Clock Setup Figure 17 - Exercise Time 3.10.7 EXERCISE SETUP 3.10.8 MANUAL TESTS This is the screen to set the exercise function (Figure 16). To return to the Exercise and Clock setup menu screen press the left This screen is used to access the Test functions of the Transfer arrow.
  • Page 16 Operation Return to Normal - This function is used to end the TEST func- Figure 20 - Voltage Measurement Maintenance tion. Press the RETURN TO NORMAL button to start the Return to Normal timer and the transfer switch will transfer the load back to the Utility supply.
  • Page 17 Operation 3.10.12 SYSTEM STATUS Figure 23 - System Utility Menu The SYSTEM STATUS screen is used to convey what step of the sequence the transfer switch controller is currently in. This screen can be used for operation and troubleshooting (Figure 22). The indicators will change colors to indicate whether the function they represent is active or inactive.

  • Page 18: Maintenance

    Maintenance 4.1 OPERATE TRANSFER SWITCH Figure 26 - Screen Calibration Screen Operate the transfer switch at least once each month. This can be done by performing a NORMAL TEST of the system. The System Test switch only simulates failure of the UTILITY power source, therefore, service will be interrupted only during the actual transfer of the load.

  • Page 19: Main Current Carrying Contacts

    Maintenance 4.4 MAIN CURRENT CARRYING CONTACTS At least once annually, have an Authorized Service Technician check the main current carrying contacts in the transfer mecha- nism. They will repair or replace major components that have been found defective. 4.5 BATTERIES The batteries in the transfer switch controller are of the lead acid type.

  • Page 20: Warranty

    NOTE: ALL UNITS MUST HAVE A START-UP INSPECTION PERFORMED BY AN AUTHORIZED GENERAC DEALER. For a period of two (2) years of operation from the date of start up, Generac Power Systems, Inc. (Generac) will, at its option, repair or replace any part(s) which, upon examination, inspection, and testing by Generac or an Authorized/Certified Generac Dealer, or branch thereof, is found to be defective under normal use and service, in accor- dance with the warranty schedule set forth below.

This manual is also suitable for:

Tas-200

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