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TI4200 GPU-24

NOTE: All users must read this entire manual prior 

to operating the TI4200 GPU-24.

The TI4200 GPU-24 is a limited maintenance-free and sealed unit.  No repairs are authorized.  Warranty will 

be voided if unit is tampered with in any way, or if unauthorized repairs are made.  For technical support 

please contact:

TESLA™ INDUSTRIES INCORPORATED

101 CENTERPOINT BLVD.

CENTERPOINT INDUSTRIAL PARK, NEW CASTLE, DELAWARE 19720

PHONE: (302) 324-8910   FAX:  (302) 324-8912

WEBSITE: www.teslaind.com ♦ www.tesla1.com   EMAIL: tesla1@teslaind.com

  

Shock Hazard Potential

C

AUTION

Improper use or failure to follow instructions in this user manual can result in unit damage and/or injury or 

death by electrical shock.  
Any attempts to open or examine the inside of the unit via a tool or device (borescope, probe, etc.) can result 

in unit failure and/or injury by electrical shock.  This GPU is mainte nance free and should not be opened or 

disassembled for any reason.
Always protect the unit from short circuit. 
Shipping Hazards: The unit contains sealed, dry cell rechargeable batteries that do not pose a shipping 

hazard. 

04-30-21

All Ground Power Units, Micro Power Units (Aviation Batteries) and including, but not limited to, Battery Chargers/

Conditioners, manufactured by Tesla™ Industries, Inc., are able to safely and effectively charge any AGM, Lead 

Acid battery.
The Tesla™ GPU’s and chargers are voltage and current regulated to 0.01% (dual loop). The charging voltage is 

calibrated, by Tesla™, to 28.6 volts and is pure dc (no power line ripple).

Maximum Charge Voltage by Battery Type

Type: 

Charging Voltage / Cell 

Charging Voltage / 12v 

Charging Voltage / 24v

  SLI/Flooded 

2.366v to 2.416v 

14.2v to 14.5v 

28.4v to 29v

  Lead Acid/Flooded 

2.366v to 2.416v 

14.2v to 14.5v 

28.4v to 29v

  Sealed Lead Acid 

2.366v to 2.416v 

14.2v to 14.5v 

28.4v to 29v

  VRLA 

2.366v to 2.416v 

14.2v to 14.5v 

28.4v to 29v

  AGM 

2.433v to 2.466v 

14.6v to 14.8v 

29.2v to 29.6v

  GEL 

2.350v to 2.400v 

14.1v to 14.4v 

28.2v to 28.8v

Copyright © 2021 by Tesla™ Industries, Incorporated. All rights reserved.

Summary of Contents for TI4200 GPU-24

Page 1: ...TI4200 GPU 24 User Manual Built Smart Proven Tough Power Anytime Anywhere Tesla Industries Inc 101 Centerpoint Blvd New Castle DE 19720 302 324 8910 Phone 302 324 8912 Fax www teslaind com www tesla1...

Page 2: ...or disassembled for any reason Always protect the unit from short circuit Shipping Hazards The unit contains sealed dry cell rechargeable batteries that do not pose a shipping hazard 04 30 21 All Grou...

Page 3: ...oors or in a well ventilated area Causes damage to central nervous system blood and Contact with internal components may cause irritation or severe burns Avoid contact with internal acid kidneys throu...

Page 4: ...bicarbonate lime etc Wear acid resistant clothing boots gloves and face shield Do not allow discharge of unneutralized acid to sewer Acid must be managed in accordance with local state and federal req...

Page 5: ...Positions 7 2 8 Push to Test Button and LED Status Indicator 8 Section 3 Operating Procedures 9 3 1 Operating Procedures 9 3 2 General 9 3 3 Operating Limits and Restrictions 9 3 4 Performance 9 3 5 E...

Page 6: ...6 2 Basic Usage Operation Questions 26 6 3 Basic Troubleshooting 27 28 Section 7 Performance Data 29 7 1 Purpose 29 7 2 General 29 7 3 Data Basis 29 7 4 Specific Conditions 29 7 5 General Conditions...

Page 7: ...heit dc Direct Current EFF Efficiency ft Feet FWD Forward GPU Ground Power Unit Hr Hour Hz Hertz kg Kilograms kHz Kilohertz kW Kilowatts LED Light Emitting Diode max Maximum M megaohm min Minimum MPU...

Page 8: ...WARNING Indicates a condition operating procedure or practice which if not adhered to could result in serious injury or death CAUTION Indicates a condition or operating procedure which if not strictl...

Page 9: ...g Pin Figure 1 3 2 Proper Ground Adapter with Grounding Mechanism Secured to Outlet Figure 1 3 3 Improper Ground Plug with No Grounding Pin The use of unapproved ac power will damage the unit Check th...

Page 10: ...e observance of procedures limitations and performance criteria ensures peak operating efficiency and maximizes operational capabilities and life of the TI4200 GPU 24 This manual contains the complete...

Page 11: ...n 3 Provides active cooling for internal components LED Charge Status Meter 4 Displays current battery charge status when pressed 60 Hz 3 Phase AC Input Cable 5 Use for 60 Hz 3 Phase 200 260 Vac Input...

Page 12: ...5700 Watts when plugged into ac power 223 amp hours 6 212 watt hours with three phase Vac power 23 amp hours 512 watt hours of rechargeable battery power without three phase ac Rechargeable Rate 12 m...

Page 13: ...he internal cooling system will efficiently regulate unit temperature regardless of load At room temperature 77 F the exhaust air will not exceed the ambient temperature by more than 5 F In more extre...

Page 14: ...in both the horizontal Figure 2 7 1 and vertical Figure 2 7 2 positions as shown Make sure that the airflow is not obstructed from air intake figure 2 7 3 and outlet Figure 2 7 4 Figure 2 7 2 Vertical...

Page 15: ...and hold for approximately 2 to 3 seconds The LED bar graph should light up indicating the status of the power cells 3 In addition the fan s should start operating when the button is pressed If you d...

Page 16: ...onsideration must be given to changes in performance resulting from variations in ambient temperature mode of operation state of charge with or without ac power and aircraft dc bus system inefficiency...

Page 17: ...e the unit into a cooler climate such as shade or air conditioning when possible Perform a full function test prior to use after the unit has been allowed to cool 3 6 Temperature Specifications Cold H...

Page 18: ...h 0 76 cm or continuously between 0 30 and 0 10 inch per hour OK OPERATION NOT RECOMMENDED Light rain drizzle or sleet Precipitation falling on a continuous basis between 0 10 inch and less than 1 50...

Page 19: ...n Figure 3 8 1 capable of measuring dc and ac voltage and resistance will be required to perform some of the tests These functional test procedures should become routine Figure 3 8 1 Digital Multimete...

Page 20: ...6 5 to 28 Vdc depending on state of charge Figure 3 8 3 Testing DC Receptacle Better than 10 M ensure no short exists Negative dc receptacle terminal and unit case Positive dc receptacle terminal and...

Page 21: ...ucted from air intake and outlet see section 2 6 3 Check that all connections are secure and free from water 4 Figure 3 9 1 TI4200 GPU 24 3 10 Transporting Unit The TI4200 GPU 24 has a telescoping han...

Page 22: ...voltmeter should indicate 24 Vdc to 23 5 Vdc 23 Vdc minimum Ensure dc power cable plug is fully seated into the vehicle or aircraft s dc receptacle Figure 3 11 2 Attaching NATO DC Power Cable to vehic...

Page 23: ...Aircraft or Vehicle Remove dc power cable GPU connector from 1 vehicle Remove dc power cable connector from TI4200 2 GPU 24 if necessary Reinstall dc receptacle s protective cover 3 CAUTION Unplug AC...

Page 24: ...It is also an optimum voltage for powering avionics and lighting on most aircraft The GPU s ac to dc converter produces continuous amps of dc power depending on the size of the system Figure 3 13 1 C...

Page 25: ...r a full charge the LED indicator should show a single steady green bar or a single green bar blinking The fan will also come on at reduced speed This is normal operation indicating the unit is in sta...

Page 26: ...er OFF 2 Plug the unit into 208 Three Phase 30 amp ac power Figure 3 16 4 Plugging Into AC Three Phase Power 3 Place the ON OFF switch to the ON position shown below After 2 3 seconds the LED bar grap...

Page 27: ...rom the vehicle once the engine is started and the starter generator is running This feature will enable you to start multiple vehicles without reconnecting to ac power if the GPU is allowed to backch...

Page 28: ...amaged if recharged by NiCad or Lead Acid type battery chargers Power cells should only be charged by either the TI4200 GPU s internal charger and the ac power cord furnished with the equipment or whe...

Page 29: ...cloth to remove dust dirt etc Protect Cables from Damage Do not cut crush or drag the input or output power cables when handling the unit Always inspect cables prior to use If no damage is evident pro...

Page 30: ...the crate on all sides and return it to Tesla at the address listed below Please contact Tesla Customer Service at 302 324 8910 with any questions or concerns TESLA INDUSTRIES INCORPORATED 101 CENTER...

Page 31: ...rt aboard your aircraft You may take the Turbo Start anywhere you travel ensuring that you will always have power 4 How much power will my Turbo Start provide Depending on the system the Turbo Start w...

Page 32: ...et my Turbo Start serviced Contact Tesla We can be reached at 302 324 8910 Ask for customer service You can also email us at tesla1 teslaind com Once we receive the unit at our facility we will examin...

Page 33: ...ays running when I am plugged into ac power Constant cooling fan operation ensures proper and consistent ventilation of the unit 6 Why does the cooling fan slow down Cooling fan rpm varies for better...

Page 34: ...outlet AC line cord is damaged or bad A Is ac line cord fully plugged into unit B and wall outlet AC circuit breaker has been tripped C No ac power at outlet D Do a continuity test on the ac line cor...

Page 35: ...t out 28 5 volts dc power Unit is not plugged in A Plug unit into ac power source to A maintain 28 5 Stand alone Vdc is 24 Volts B unplugged 9 Unit stand alone voltage is less than 23 volts Cells disc...

Page 36: ...e chart under DATA BASIS The applicable report and date of the data are also given The data provided generally are based on one of three categories Derived From Actual Controlled Testing Controlled te...

Page 37: ...8 13 0 8 6 20 0 68 0 53 0 127 4 45 0 49 0 12 0 10 4 21 0 69 8 54 0 129 2 44 0 47 2 11 0 12 2 22 0 71 6 55 0 131 0 43 0 45 4 10 0 14 0 23 0 73 4 56 0 132 8 42 0 43 6 9 0 15 8 24 0 75 2 57 0 134 6 41 0...

Page 38: ...CURRENT LOAD MAXIMUM OUTPUT CURRENT AMPS Calculation based on actual test data at Pratt Whitmey on 30 March 1992 SECONDS 1500 1350 1200 1050 900 750 600 450 150 300 0 0 5 10 15 20 25 30 29 C Temp 25 C...

Page 39: ...tegrated with the Tesla Turbo Start GPU power supply the DVAM is a valuable tool for troubleshooting and conducting systems checks The DVAM 3100A can be ordered through customer service at Tesla 8 4 G...

Page 40: ...ility and connectivity To extend the life of the Cobra Connector included with your unit replacement contacts posts noses and tools can be ordered through the Tesla Customer Service TI2005 238 Cobra A...

Page 41: ...ail _______________________________________________________________________________________ Purchase Order ______________________________________________________________________________ Model ________...

Page 42: ...Tesla 101 Centerpoint Blvd New Castle DE 19720 USA Tel 302 324 8910 Fax 302 324 8912 9475 Double R Blvd Suite 2 Reno NV 89521 Tel 775 622 8801 Fax 775 622 8810 www teslaind com www tesla1 com...

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