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MQ Power WHISPERWATT Series Operation Manual

Natural gas generator
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OPERATION MANUAL
WHISPERWATT™ SERIES
MODEL
NGA100SSPUL
NATURAL GAS GENERATOR
(PSI 8.8L NA DUAL-FUEL ENGINE)
INSTRUCTION MANUAL NO. M3844300804
Revision #0 (11/28/23)
To find the latest revision of this publication or
associated parts manual, visit our website at:
www.mqpower.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

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  • Page 1 OPERATION MANUAL WHISPERWATT™ SERIES MODEL NGA100SSPUL NATURAL GAS GENERATOR (PSI 8.8L NA DUAL-FUEL ENGINE) INSTRUCTION MANUAL NO. M3844300804 Revision #0 (11/28/23) To find the latest revision of this publication or associated parts manual, visit our website at: www.mqpower.com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

  • Page 2: Proposition 65 Warning

    PROPOSITION 65 WARNING PAGE 2 — NGA100SSPUL NATURAL GAS GENERATOR • OPERATION MANUAL — REV. #0 (11/28/23)

  • Page 3: Table Of Contents

    TABLE OF CONTENTS NGA100SSPUL NOTICE Natural Gas Generator Specifications are subject to change without notice. Proposition 65 Warning ........... 2 Table of Contents ............. 3 Safety Decals ............4 Safety Information ..........5–10 Specifications ............11 Dimensions ............12 Installation ............13–14 General Information ..........

  • Page 4: Safety Decals

    SAFETY DECALS Safety decals are attached to the generator as shown in NOTICE Figure 1. Keep these safety decals clean at all times. When For safety decal part numbers, refer to the associated the safety decals become worn or damaged, contact your parts manual.

  • Page 5: Safety Information

    SAFETY INFORMATION Do not operate or service the generator before reading the Potential hazards associated with the operation of this entire manual. Safety precautions should be followed at all generator will be referenced with hazard symbols which times when operating this generator. Failure to read and may appear throughout this manual in conjunction with understand the safety messages and operating instructions safety messages.
  • Page 6 „ NEVER use accessories or attachments that are not being used. The generator should be stored in a clean, recommended by MQ Power for this generator. Damage dry location out of the reach of children and unauthorized to the generator and/or injury to the user may result.
  • Page 7 SAFETY INFORMATION ENGINE SAFETY „ Operation of the generator may create sparks that can start fi res around dry vegetation. A spark arrestor DANGER may be required. The operator should contact local fi re agencies for laws or regulations relating to fi re prevention „...
  • Page 8 „ The trailer should be adjusted to a level position at all times when towing. „ Refer to the MQ Power trailer manual for additional safety information. „ Raise and lock the trailer wheel stand in the upright position when towing.
  • Page 9 SAFETY INFORMATION ELECTRICAL SAFETY „ Make sure power cables are securely connected to the generator’s output receptacles. Incorrect connections DANGER may cause electrical shock and damage to the generator. „ NEVER touch the output terminals NOTICE during operation. Contact with the „...
  • Page 10 SAFETY INFORMATION EMISSIONS INFORMATION „ If the battery liquid (dilute sulfuric acid) comes into contact with eyes, rinse eyes immediately with plenty NOTICE of water and contact the nearest doctor or hospital to seek medical attention. The diesel engine used in this equipment has been designed to reduce harmful levels of carbon monoxide CAUTION (CO), hydrocarbons (HC), and nitrogen oxides (NOx)

  • Page 11: Specifications

    SPECIFICATIONS Table 2. Generator Specifications Model NGA100SSPUL Revolving field, self-ventilated, Type open protected type synchronous generator Armature Connection Star with Neutral Zigzag Phase Single Standby Output 88 kW (110 kVA) 63 kW Prime Output 80 kW (100 kVA) 58 kW 3Ø...

  • Page 12: Dimensions

    DIMENSIONS MAXIMUM LIFTING TOP VIEW POINT CAPACITY 6,960 lb. 3,157 kg SIDE VIEW Figure 2. Dimensions FRONT VIEW Table 4. Dimensions Reference Dimension Reference Dimension Letter in. (mm) Letter in. (mm) 40.83 (1,037) 43.70 (1,110) 43.70 (1,110) 69.86 (1,774) 31.22 (793) 118.50 (3,010) 20.87 (530) 47.25 (1,200)

  • Page 13: Installation

    GENERATOR GROUND LUG GROUND ROD GROUND CABLE REFERENCE NEC 250 Figure 3. Typical Generator Grounding Application NOTICE Trailer-mounted generators are the sole responsibility of MQ Power. NGA100SSPUL NATURAL GAS GENERATOR • OPERATION MANUAL — REV. #0 (11/28/23) — PAGE 13...
  • Page 14 INSTALLATION OUTDOOR INSTALLATION MOUNTING Install the generator in an area that is free of debris, The generator must be mounted on a solid foundation bystanders, and overhead obstructions. Make sure the (such as concrete) and set firmly on the foundation to generator is on secure, level ground so that it cannot slide isolate vibration of the generator when it is running.

  • Page 15: General Information

    „ Fuel Selector Switch for the generator. Refer to Table 3 for engine specifications. „ Emergency Stop Switch In keeping with MQ Power’s policy of constantly improving its products, the specifications quoted herein are subject „ Control Box (located behind Control Panel) to change without prior notice.

  • Page 16: General Paralleling Information (Option)

    GENERAL PARALLELING INFORMATION ( OPTION ) The kVAR load sharing is achieved by increasing or NOTICE decreasing the field excitation to the system’s alternators. When the paralleling option is employed, the Basler As the field excitation of one generator set in a group is DGC-2020HD controller must be installed.
  • Page 17 GENERAL PARALLELING INFORMATION ( OPTION ) SEQUENCING ALARM SILENCE NOTICE Pre-Alarm Silence allows the user to suppress the toggling of the Alarm screen when a new pre-alarm becomes active. Ethernet communication is required when the While a pre-alarm is active, press the Alarm Silence button generators are configured for the sequencing mode to suppress the fault display.
  • Page 18 GENERAL PARALLELING INFORMATION ( OPTION ) Preparation Ethernet Cable Connection 1. Make sure the generator is turned OFF and the engine 1. Connect a shielded CAT5E ethernet cable between is cool. port 1 on both generators as shown in Figure 4. 2.

  • Page 19: Major Components

    MAJOR COMPONENTS Table 6. Major Components Item No. Description Gas Filter Separator Assembly Muffler Assembly Output Terminal Panel Assembly Generator Assembly Engine and Radiator Assembly Battery Assembly Environmental Tank Assembly Control Panel Assembly Digital Genset Controller Assembly Circuit Breaker Assembly Figure 5.

  • Page 20: Gas Filter Separator

    GAS FILTER SEPARATOR 4. Liquid Level Gauge — Release mist trapped in the gas filter separator periodically as indicated by this gauge. WARNING Flammable gas is automatically emitted from the gas filter water drain. This gas can cause fire and explosion. The gas filter water drain must be connected to the plumbing system to prevent the release of gas.

  • Page 21: Control Panel

    CONTROL PANEL Figure 7. Control Panel 7. Voltage Regulator — Allows fine adjustment of the The definitions below describe the controls and functions of the control panel (Figure 7). generator’s output voltage. 1. Main Circuit Breaker — 3-phase, 250-amp, main circuit 8.

  • Page 22: Basler Digital Genset Controller

    BASLER DIGITAL GENSET CONTROLLER LCD DISPLAY DGC-2020 ES VOLT Supplyin g Not In Alarm Load Auto 60.0 100 : 21 12.8 Auto HOURS TEMP BATT Back Edit Figure 8. Basler DGC-2020ES The definitions below describe the controls and functions of the Basler DGC-2020ES digital genset controller (Figure 8).
  • Page 23 BASLER DIGITAL GENSET CONTROLLER 2. Supplying Load Indicator — This green LED lights 9. Edit Pushbutton — Press this button to start an editing whenever the generator current is greater than the session and enable changes to the DGC-2020ES emergency power supply (EPS) threshold current. settings.

  • Page 24: Output Terminal Panel Familiarization

    OUTPUT TERMINAL PANEL FAMILIARIZATION OUTPUT TERMINAL PANEL OUTPUT TERMINAL FAMILIARIZATION The output terminal panel (Figure 10) shown below is The output terminal panel (Figure 10) is provided with provided for the connection of electrical loads. Lift up on the following: the cover to gain access to receptacles and terminal lugs.
  • Page 25 OUTPUT TERMINAL PANEL FAMILIARIZATION 120-Volt AC GFCI Receptacles CS-6369 TWIST-LOCK NOTICE RECEPTACLES It is recommended that the GFCI receptacles be tested when the generator is initially uncrated. The receptacles should then be tested daily at startup. There are two 120-volt, 20-amp GFCI (duplex NEMA 5-20R) receptacles provided on the output terminal panel.
  • Page 26 OUTPUT TERMINAL PANEL FAMILIARIZATION Connecting Loads OVERCURRENT RELAY Loads can be connected to the generator via the output An overcurrent relay (Figure 14) is connected to the terminal panel, convenience receptacles, or optional main circuit breaker. In the event of an overload, both the cam-loks (Figure 13).

  • Page 27: Load Application

    LOAD APPLICATION SINGLE-PHASE LOAD THREE-PHASE LOAD Always be sure to check the nameplate on the generator When calculating the power requirements for 3-phase and equipment to ensure the wattage, amperage, power, use the following equation: frequency, and voltage requirements are satisfactorily VOLTAGE ×...

  • Page 28: Generator Outputs

    GENERATOR OUTPUTS GENERATOR OUTPUT VOLTAGES MAXIMUM AMPS A wide range of voltages (Table 9) is available for many Table 10 shows the maximum amps the generator can different applications. provide. DO NOT exceed the maximum amps as listed. Table 9. Voltages Available Table 10.

  • Page 29: Output Terminal Panel Connections

    OUTPUT TERMINAL PANEL CONNECTIONS UVWO TERMINAL OUTPUT VOLTAGES 3. Turn the voltage regulator (Figure 19) clockwise to increase voltage output, and counterclockwise to Various output voltages can be obtained using the UVWO decrease voltage output. Use the voltage regulator output terminal lugs. The voltages at the terminals are whenever fine tuning of the output voltage is required.
  • Page 30 OUTPUT TERMINAL PANEL CONNECTIONS 3-Phase 480/277-Volt Single-Phase 240/120-Volt UVWO Terminal Output Voltages UVWO Terminal Output Voltages 1. Place the Voltage Selector switch in the 3-phase 1. Place the Voltage Selector switch in the 1-phase 480/277-volt position as shown in Figure 21. 240/120-volt position as shown in Figure 23.

  • Page 31: Inspection/Setup

    INSPECTION/SETUP UNIT INSPECTION 6. When checking the engine oil, be sure to check if the oil is clean. If the oil is not clean, drain the oil as described Perform an overall inspection of the unit to check for any in the Maintenance section of this manual.
  • Page 32 INSPECTION/SETUP FUEL CONNECTION Fuel Type Properly connect the gas supply pipe to the gas inlet valve. PSI heavy-duty engines are designed and certified on commercially available pipeline-quality gas. Table 12 is CAUTION intended to define pipeline-quality gas. If the gas is not commercially available pipeline-quality gas that meets Natural gas inlet pressure must be within 20–150 psi.
  • Page 33 INSPECTION/SETUP COOLANT CHECK WARNING The PSI 8.8L engine requires the use of a 50/50 mixture of Natural gas and LPG supply pressure can cause gas DEX-COOL coolant (or any PSI-approved alternative coolant) leaks which can lead to fire and severe personal and distilled water.
  • Page 34 INSPECTION/SETUP 1. To check the coolant level, place the generator on secure, level ground with the engine stopped. 2. Check the level of the coolant in the coolant reserve tank (Figure 26): • When checking the level while the engine is cold, the COOLING FINS coolant level should be between the COLD MIN and...
  • Page 35 INSPECTION/SETUP Battery Switch The battery is sufficiently charged if the specific gravity of the battery fluid is 1.28 (at 68°F). If the specific gravity The Battery switch (Figure 29) connects and disconnects should fall to 1.245 or lower, it indicates that the battery is the battery.

  • Page 36: Generator Start-Up Procedure (Manual)

    GENERATOR START - UP PROCEDURE ( MANUAL ) BEFORE STARTING 5. Place the Battery switch (Figure 31) in the ON position. CAUTION The engine’s exhaust contains harmful emissions. ALWAYS have adequate ventilation when operating. Direct exhaust away from nearby personnel. WARNING Figure 31.
  • Page 37 GENERATOR START - UP PROCEDURE ( MANUAL ) 2. Once the engine starts, the engine will run at low idle 7. The controller display will indicate the oil pressure (1,000 rpm) for approximately 30 seconds. During of the engine (Figure 34E). Under normal operating the warmup process, check for any abnormal noise, conditions the oil pressure should be between vibration, or fluid leakage.

  • Page 38: Generator Start-Up Procedure (Auto Mode)

    GENERATOR START - UP PROCEDURE ( AUTO MODE ) STARTING (AUTO MODE) When starting the generator in Auto mode use the manual start-up procedure except where noted (see below). DANGER 1. Perform steps 1 through 8 in Before Starting found in Before connecting this generator to any the Generator Start-Up Procedure (Manual) section.

  • Page 39: Generator Shutdown Procedures

    GENERATOR SHUTDOWN PROCEDURES NORMAL SHUTDOWN PROCEDURE (MANUAL) NORMAL SHUTDOWN PROCEDURE (AUTO) 1. Place the load’s ON/OFF switch in the OFF position. When the remote contacts are opened, the engine will stop. To exit Auto mode, press the OFF button on the 2.

  • Page 40: Maintenance

    MAINTENANCE After First Every 200 Every 500 Every 1,000 Table 14. Inspection/Maintenance Daily 50 Hours Hours Hours Hours Visual Check for Fluid Leaks (or Monitoring) Check Engine Oil Level (or Monitoring) Check Coolant Level (or Monitoring) Change Engine Oil and Filler* Change Crankcase Ventilation Filters Clean Debris from Radiator Core Check and Clean Air Cleaner*...
  • Page 41 MAINTENANCE GENERAL INSPECTION Air Cleaner Restriction Indicator The air cleaner is equipped with a restriction indicator Prior to each use, the generator should be cleaned and inspected for deficiencies. Check for loose, missing, or (Figure 42). As the air cleaner element becomes clogged, damaged nuts, bolts, or other fasteners.
  • Page 42 MAINTENANCE 5. Place the oil drain valve in the open position 2. Using an oil filter wrench, remove the main engine (Figure 43) and allow the oil to drain into a suitable oil filter (Figure 44). container. 3. Coat the rubber seal (gasket) surface of the new oil 6.
  • Page 43 MAINTENANCE DRIVE BELT 2. Place the coolant drain valve in the OPEN position (Figure 46) and allow the coolant to drain into a suitable Drive Belt Tension container. A slack drive belt may contribute to overheating or insufficient charging of the battery. Adjust the drive belt in accordance with the PSI engine owner’s manual.
  • Page 44 MAINTENANCE TESTING THE GFCI RECEPTACLES 4. Press the TEST button (Figure 51) on the GFCI receptacle and verify that the status LED turns OFF. NOTICE The GFCI receptacle is designed to interrupt power when a ground fault exists to prevent injuries and shock hazards.
  • Page 45 MAINTENANCE GENERATOR STORAGE For long-term storage of the generator the following is recommended: „ Clean the entire generator, inside and outside. „ Disconnect and remove the battery. Charge and store the battery in a separate location. „ Check the unit for any damage or missing parts. Repair if necessary.
  • Page 46 MAINTENANCE OPTIONAL INTERNAL BATTERY CHARGER If the generator will be used daily, the battery should normally not require charging. If the generator will be idle 120 VAC INPUT RECEPTACLE (not used) for long periods of time, apply power to the This generator can be equipped with an internal battery battery charger receptacle via commercial power using a charger as an option.

  • Page 47: Troubleshooting (Diagnostics)

    TROUBLESHOOTING ( DIAGNOSTICS ) DIAGNOSTIC MODE The digital controller can be placed in Diagnostic mode to DGC-2020 ES allow the operator to perform fault diagnostics. To place the Supplyin g Not In Alarm Load Auto unit in Diagnostic mode, the engine must be turned OFF. 1.
  • Page 48 5. Allow a sufficient cooling period, then inspect the unit and repair the problem(s) before restarting operation. If necessary, contact your nearest MQ Power dealer for additional technical support. Table 15. Automatic Engine Shutdown System Operating...

  • Page 49: Troubleshooting (Generator)

    TROUBLESHOOTING ( GENERATOR ) Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use Table 16 shown below for diagnosis of the generator. If the problem cannot be remedied, consult our company’s business office or service plant.

  • Page 50: Generator Wiring Diagram (M3814001303)

    GENERATOR WIRING DIAGRAM ( M3814001303 ) PAGE 50 — NGA100SSPUL NATURAL GAS GENERATOR • OPERATION MANUAL — REV. #0 (11/28/23)

  • Page 51: Engine Wiring Diagram (M3814101613)

    ENGINE WIRING DIAGRAM ( M3814101613 ) NGA100SSPUL NATURAL GAS GENERATOR • OPERATION MANUAL — REV. #0 (11/28/23) — PAGE 51...

  • Page 52: Plumbing System Diagram (M3824300303)

    PLUMBING SYSTEM DIAGRAM ( M3824300303 ) PAGE 52 — NGA100SSPUL NATURAL GAS GENERATOR • OPERATION MANUAL — REV. #0 (11/28/23)

  • Page 53: Battery Charger Wiring Diagram (Option)

    BATTERY CHARGER WIRING DIAGRAM ( OPTION ) BLACK 14 AWG. LINE (L)120VAC INPUT WHITE 14 AWG. NEUTRAL (N) GREEN 14 AWG. GROUND (G) TO CHASSIS GROUND GREEN 16 AWG TO STARTER “B” TERMINAL RED 16 AWG 120 VAC INPUT, INSERT EXTERNAL POWER CORD HERE.
  • Page 54 Multiquip Inc. reserves the right to discontinue or change specifi cations, design or the information published in this publication at any time without notice and without incurring any obligations. Manufactured for MQ Power Inc. DENYO MANUFACTURING CORP.

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