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This document is an operator's manual for the Power Technology Southeast PTI-15/20SI-T4F generator set, powered by an industrial Isuzu diesel engine. It is part of Power Tech's Tier 4 Final Generator product line, engineered to high-quality standards for long and satisfactory service. The manual provides essential information for operating and maintaining the generator, ensuring optimal performance and safety.
The primary function of this device is to generate power, designed for reliability and consistent output. It is equipped with an exciter type generator, which utilizes residual magnetism in its pole pieces to initiate voltage induction. This voltage is then rectified and fed to the alternator field, building up to the rated output voltage. An electronic voltage regulator (EVR), also known as an automatic voltage regulator (AVR), is integrated to maintain voltage accuracy within ±2% across the entire load range, from no load to full load. This automatic regulation ensures stable power delivery.
For usage, the generator can be connected at the terminal board to provide 120/240 volts in a 3-wire grounded neutral system. A 120-volt connection is recommended if all equipment requires this voltage, as it allows the EVR to maintain voltage very close to 115 or 120 volts, regardless of power distribution. While a 120/240-volt connection can be used for 110-volt loads, it may lead to high line-to-neutral voltage on lightly loaded phases and low voltage on heavily loaded phases, potentially affecting the starting of air conditioning units or overloading circuit breakers. For three-phase connections, users are advised to contact Power Technology's technical support.
The generator features a PTG Series Controller with an LCD display, serving as the primary interface for information, settings, and monitoring engine parameters. The controller offers different operating modes: OFF, Auto, Running, and Failure. In OFF mode, the engine cannot be remotely started. In Auto mode, it waits for a start command. When Running, the controller monitors engine parameters and awaits a stop command. In case of a failure, the engine shuts down, and the reason is displayed, requiring a reset via the front panel OFF button (except for Modbus). The Menu mode allows users to change settings and view event history, which can store up to 150 events.
Front panel items include an Off Button to turn off the engine or exit Auto mode (not an emergency stop), an Auto Button to place the controller in Auto mode, a Run Button for manual engine start, Up and Down Buttons for menu navigation and parameter page scrolling, and an Enter Button for menu access, setting acceptance, or locking the LCD screen. A Generator LED indicates the engine status: green for no issues, amber for warnings, and red for shutdown due to failure.
The manual emphasizes safe operation, including observing safety instructions, wearing appropriate safety clothing, and conducting pre-operational checks. Users are warned against loose clothing, operating under the influence, or modifying the engine. Before operation, it's crucial to ensure the engine is functioning correctly, guards are in place, the area is clear, and children or livestock are kept away. Proper handling of fuel and lubricants is vital, requiring the engine to be stopped before refueling, avoiding smoking or flames, and refueling in well-ventilated areas. Exhaust gases are harmful, so the engine must run in a well-ventilated area, and hot exhaust components should be kept away from combustible materials to prevent fires. Caution is also advised regarding escaping fluids, burns from hot components, and battery explosions. Hands and body must be kept away from rotating parts.
Maintenance features are detailed to ensure the generator's longevity and performance. Daily pre-operational checks include verifying engine oil level, battery cable tightness and corrosion, coolant level, absence of water in fuel, absence of diagnostic trouble codes (DTCs) or failures, and fan belt tension.
Engine oil maintenance involves maintaining the oil level between "ADD" and "Full" marks on the gauge, using SAE 10W-40 (API Class CJ-4) lubricating oil. Oil viscosity recommendations are provided based on ambient temperature ranges, with SAE 10W-30 or 15W-40 for temperatures above -10°C (14°F) and SAE 10W-30 for temperatures below -10°C (14°F).
Coolant recommendations suggest a 1:1 mixture of water and glycol, ensuring protection against the lowest anticipated ambient temperature. Ethylene Glycol and Propylene Glycol mixtures are discussed, with a note against using Propylene Glycol in concentrations exceeding 50% due to reduced heat transfer capability. Coolant service life is specified as 3000 service hours or two years for commercial heavy-duty coolants meeting ASTM D5345, and 3000 service hours or one year for those meeting ASTM D4985. Users are cautioned against coolants only meeting ASTM D3306 or D4656, as these are for light-duty automotive applications. Checking the radiator coolant level and reservoir tank level is also outlined. Cleaning the radiator core involves using running water to remove obstructions, with a warning against using hard objects or running water through electric fans if equipped with remote radiator assemblies.
The manual also includes an operating hours and service log to track maintenance activities. The generator's enclosure is sound-insulated to reduce noise levels, and users are advised against mounting objects on it or restricting airflow, as this could void the warranty or cause overheating. All connections (fuel, battery, electrical outputs, and remote starting) are integrated into the generator's base and must be adequately supported.
A troubleshooting section provides guidance for common issues such as the generator not starting via remote panel, engine not cranking from the local controller, engine cranking but not starting, engine starting but shutting down, and the genset not producing voltage. For more complex issues, users are directed to contact authorized dealers or Power Technology's customer service.
General| AC Maximum Output (Watts) | 15, 000 |
|---|---|
| Fuel Type | Gasoline |
| Engine Displacement | 688cc |
| AC Output | 120/240V |
| Wheel Kit | Included |
| Weight | 350 lbs |
| Starting System | Electric |
| Noise Level | 72 dB |
| DC Output | 12V |
| Outlets | 4x 120V 20A GFCI, 1x 120/240V 30A twist lock, 1x 120/240V 50A |
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