Pramac GA20000 Owner's Manual
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Pramac GA20000 Owner's Manual

50 hz air-cooled generator sets
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Owner's Manual
50 Hz Air-Cooled Generator Sets
20 kVA
Original Instructions
This product is not intended
to be used in a critical life
support application.
ISO000209b
Register your Pramac product at:
www.activategen.com
SAVE THIS MANUAL FOR FUTURE REFERENCE

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  • Page 1 Owner’s Manual 50 Hz Air-Cooled Generator Sets 20 kVA Original Instructions This product is not intended to be used in a critical life support application. ISO000209b Register your Pramac product at: www.activategen.com SAVE THIS MANUAL FOR FUTURE REFERENCE...
  • Page 2 Individual operating habits and usage may contribute to the need for additional maintenance or service. Phase: Pramac recommends contacting an IASD for assistance when the generator set requires maintenance or service. Authorized service technicians are factory–trained and are Controller P/N: capable of handling maintenance and service needs.
  • Page 3 EC Declaration of Conformity Generac Power Systems, Inc. Manufacturer: S45 W29290 Hwy 59 Waukesha, WI 53189 USA Generac Power Systems, Inc. hereby declares that the machinery described below fulfils all the relevant provisions of the Machinery Directive 2006/42/EC. The Machinery also conforms to the relevant provisions of the Outdoor Noise Directive 2000/14/EC (as amended by Directive 2005/88/EC) Notified body: SNCH, 2a, Kalchesbruck L 1852 Luxembourg and the Radio Equipment Directive 2014/53/EU.
  • Page 4 This page intentionally left blank. Owner’s Manual for 50 Hz Air-Cooled Generator Sets...

  • Page 5: Table Of Contents

    Table of Contents Section 1: Safety Information Interface Menu Displays ........18 The LCD Panel ............18 Introduction ............1 Menu System Navigation ..........19 Read This Manual Thoroughly ........1 Setting the Exercise Timer ....... 21 Safety Messages ..........1 Emergency Stop ..........21 Safety and Informational Decals ......2 Operating Modes ..........
  • Page 6 Table of Contents Battery Maintenance ..........32 Cleaning the Sediment Trap ......33 Attention After Submersion ......33 Corrosion Protection .........33 Remove From and Return To Service ....33 Remove From Service ..........33 Return to Service ............34 Decommissioning ..........34 Section 5: Troubleshooting / Quick Reference Guide Generator Set Troubleshooting......

  • Page 7: Section 1: Safety Information

    Safety Information Section 1: Safety Information Introduction Safety Messages Thank you for purchasing this compact, high perfor- Throughout this publication and on tags and decals mance, air-cooled, engine-driven generator set. It is affixed to the generator set, three types of safety mes- designed to automatically supply electrical power to oper- sages are used to alert personnel to special instructions ate critical loads during a mains (utility) power failure.

  • Page 8: Safety And Informational Decals

    Safety Information Safety and Informational Decals This unit is equipped with safety and informational decals displaying pictorial symbols. These symbols and decals are described below. Locations are identified in Figure 1-1. Contact an IASD for a replacement if a decal is missing, dam- aged, or illegible.
  • Page 9 Safety Information • No User Serviceable Electricity is present at various locations inside this Parts enclosure. • This equipment is designed for automatic operation and may start at any time. Render the unit inoperable before servicing. • Battery is present. Wear appropriate protective gear. •...
  • Page 10 Safety Information 005771 Figure 1-1. Safety Decals Owner’s Manual for 50 Hz Air-Cooled Generator Sets...

  • Page 11: Safety Rules

    Safety Information Safety Rules Study these SAFETY RULES carefully before installing, operating, or servicing this equipment. Become familiar Follow all safety precautions in the owner’s manual, installation manual, with this manual and with the unit. The generator set can and other documents included operate safely, efficiently, and reliably only if it is correctly with your equipment.

  • Page 12: Installation

    Safety Information Do not stand on top of generator set The generator set must be installed or use generator set as a step. and operated outdoors only. ISO000216 ISO000525 Fuel and vapors are extremely No smoking near equipment. flammable and explosive. No leakage Flammable and explosive gases are of fuel is permitted.

  • Page 13: Operation

    Safety Information Verify the generator set is installed in Pinch point. Keep hands clear of accordance with the manufacturer’s these areas when installing the instructions and recommendations. front panel or closing the roof. ISO000539 ISO000526 Following proper installation, do nothing that might alter a safe installation and Inspect the generator set regularly, and render the unit in noncompliance with...
  • Page 14 Safety Information Electricity present. Keep positive Batteries emit explosive gases while terminal covered at all times when charging. Keep fire and spark away. connected to battery. ISO000530 ISO000548 Do not dispose of batteries in a fire. Electricity present. Potentially lethal Batteries are explosive.

  • Page 15: Hot Surfaces

    Safety Information Hot Surfaces The enclosure provides protection against hot surfaces inside the generator set. Hot surfaces may be present if the generator set has been operating under a large load. Do not open the generator set enclosure while the generator set is running. ISO000533 The generator set enclosure provides protection against hot surfaces inside the enclosure.
  • Page 16 Safety Information This page intentionally left blank. Owner’s Manual for 50 Hz Air-Cooled Generator Sets...

  • Page 17: Section 2: General Information

    General Information Section 2: General Information Generator Set 005622 Figure 2-1. Components and Control Locations Lock with cover Oil drain Status LED indicators Sediment trap Main line circuit breaker Composite base Oil filter Fuel regulator (MLCB) (generator disconnect) Airbox with air cleaner Exhaust enclosure Oil fill cap Fuel inlet...

  • Page 18: Data Decals

    General Information Data Decals Two decals on the generator set provide information about the unit itself and the required fuel inlet pressure for correct operation. Model Data Decal Model Number Serial Number Item Number Production Date Volts Number of Phases Liquid Propane Vapor Amperage Frequency Natural Gas Amperage...

  • Page 19: Specifications

    General Information Specifications Generator Set Model 20 kVA Rated voltage Alternate voltage 380 / 416 Power factor Rated maximum load current (amps) at rated voltage* 28.9 Maximum load current (amps) at alternate voltage* 30.1 / 27.18 Main circuit breaker 32 A Phase Rated AC frequency 50 Hz...

  • Page 20: Engine

    General Information Engine Model 20 kVA Engine type G-Force 1000 Series Number of cylinders Displacement 999 cc Cylinder block Aluminum with cast iron sleeve Recommended spark plug Replacement Parts Spark plug gap 1.02 mm (0.040 in) Valve clearance 0.05–0.1 mm (0.002–0.004 in) Starter 12 VDC...
  • Page 21 General Information Activating the Generator Set This generator set is certified to operate on liquid pro- pane vapor fuel or pipeline natural gas. The generator set should be activated upon initial start- The Emission Control System code is EM (Engine Modifi- up.

  • Page 22: Replacement Parts

    070185E Air filter 0J8478 Control panel fuse 0D7178T Accessories NOTE: Performance enhancing accessories are available for air-cooled generator sets. Contact an IASD or visit https://www.pramac.com/gasresidential for additional information on replacement parts and accessories. Accessory Description Cold Weather Accessories*— • •...

  • Page 23: Section 3: Operation

    Operation Section 3: Operation Site Prep Verification Repeat for other side. Lid may appear stuck if pressure is not applied from top. Generator set must be installed so airflow into and out of Always verify side locks are unlocked before attempting generator set is not impeded.

  • Page 24: Control Panel Interface

    Operation • Using the Control Panel Interface Green LED “Ready” light (A) is illuminated when mains power is present and control panel is in Figure 3-4 for button locations. AUTO mode. The LED flashes when generator set is running as a result of a mains power loss and transfer signal is active.

  • Page 25: Menu System Navigation

    Operation Menu System Navigation Use ESCAPE button from any page to get to MENU screen. Pressing ESCAPE button several times before reaching ↑ ↓ MENU page may be required. Navigate to desired menu by using buttons. Press ENTER button when desired menu is displayed and flashing.
  • Page 26 Operation Figure 3-6. Navigation Menu Owner’s Manual for 50 Hz Air-Cooled Generator Sets...

  • Page 27: Setting The Exercise Timer

    Operation Setting the Exercise Timer Emergency Stop This unit is equipped with a configurable exercise timer. All generator sets are equipped with an emergency stop There are two settings for exercise timer: device. This device is intended to be used in emergency circumstances where generator set must be shut down Day/Time: Generator set will start and exercise for immediately to avoid harm.

  • Page 28: Exercise

    Operation • Once mains power is returned, generator set will 5. Press MANUAL mode button on control panel to shut down after one minute cool-down time. crank and start engine. 6. Allow engine to stabilize and warm up for a few Exercise minutes.

  • Page 29: Automatic Transfer Operation

    Operation Automatic Transfer Operation If some condition impedes normal voltage creation, such as frost crystals or dust/dirt preventing a good electrical Proceed as follows to select automatic operation: connection, start sequence will be interrupted for a clean- 1. Verify generator set is not running. ing cycle of internal electrical connections.
  • Page 30 Operation 4. Open lid and reset emergency stop alarm on control panel. 5. Set MLCB (generator disconnect) on generator set to OFF (OPEN). 6. Remove the 7.5A fuse from control panel. To turn generator set back ON: 1. Install 7.5A fuse in control panel. 2.

  • Page 31: Section 4: Maintenance

    4-1. Remove front access panel (A) by lifting Regular maintenance will improve performance and it straight up and out once lid is open. extend engine/equipment life. Pramac recommends all Always lift front access panel straight up before pulling it maintenance work be performed by an IASD.

  • Page 32: Intake Side Panel Removal

    Maintenance Performing Scheduled Maintenance Intake Side Panel Removal Figure 4-2. The intake side panel (B) must be It is important to perform maintenance as specified in the removed to access battery compartment, fuel regulator, Service Schedule for correct generator set operation. and sediment trap.

  • Page 33: Service Schedule

    (ambient above 29.4 °C / 85 °F), change engine oil and filter every year or 100 hours of operation. ‡ Inspect/adjust valve clearance after the first 25 hours of operation. NOTE: Contact an IASD or visit https://www.pramac.com/worldwide for additional information on replacement parts. Owner’s Manual for 50 Hz Air-Cooled Generator Sets...

  • Page 34: Maintenance Log

    Maintenance Maintenance Log Battery Inspection And Charge Check Dates Performed: Oil, Oil Filter, Air Filter, And Spark Plug Replacement Dates Performed: Valve Adjustment Dates Performed: Owner’s Manual for 50 Hz Air-Cooled Generator Sets...

  • Page 35: Checking Engine Oil Level

    Maintenance Checking Engine Oil Level Engine Oil Requirements To maintain product warranty, engine oil should be ser- viced in accordance with the recommendations of this manual. For convenience, maintenance kits are available Follow proper shutdown procedure that include engine oil, oil filter, air filter, spark plug(s), a for cooling if generator is running.

  • Page 36: Servicing The Air Cleaner

    Maintenance Spark Plugs 8. Fill engine with recommended oil. See Engine Oil Requirements. Proceed as follows to inspect spark plug(s) gap and 9. Install front panel. replace spark plug(s) as necessary: 10. Perform “To turn the generator set back ON” in 1.

  • Page 37: Adjusting Valve Clearance

    Maintenance Adjusting Valve Clearance 1. Perform “To turn the generator set OFF” in Gener- ator Set Enable/Disable Procedure. Proceed as follows to adjust valve clearance: 2. Remove front panel and intake side panel as 1. Perform “To turn the generator set OFF” in Gener- described in Front Access Panel Removal...

  • Page 38: Battery Maintenance

    Maintenance Battery Maintenance dence of reaction (foaming) has ceased. Flush resulting liquid with water and dry area completely. • DO NOT smoke when near battery. • DO NOT cause flame or spark in battery area. Batteries contain sulfuric acid and can •...

  • Page 39: Cleaning The Sediment Trap

    Maintenance Cleaning the Sediment Trap Corrosion Protection A sediment trap removes contaminants (moisture and Regular scheduled maintenance should be conducted to fine particles) from gaseous fuels before they enter the perform a visual inspection of unit for corrosion. Inspect fuel regulator. Accumulated moisture and particles must all metal components of generator set, including base be emptied from sediment trap per local codes and frame, brackets, generator housing, entire fuel system...

  • Page 40: Return To Service

    5. Discard non-hazardous waste materials. 11. Press OFF mode button on control panel to stop unit. 6. Notify Pramac that unit is no longer in service. 12. Press AUTO mode button on control panel. The system is now in automatic mode.

  • Page 41: Section 5: Troubleshooting / Quick Reference Guide

    Incorrect type or viscosity of oil. Engine Oil Requirements. oil consumption Damaged gasket, seal, or hose. Inspect for oil leaks. Restricted air filter. Replace air filter. * Contact an IASD or visit https://www.pramac.com/worldwide for assistance. Owner’s Manual for 50 Hz Air-Cooled Generator Sets...

  • Page 42: Quick Reference Guide

    Troubleshooting / Quick Reference Guide Quick Reference Guide To clear an active alarm, press OFF mode button and then ENTER button on control panel. Then press AUTO mode button. If alarm reoccurs, contact an IASD. Active Alarm Problem Things to Check Solution FLASHING Unit running in AUTO but...
  • Page 43 Troubleshooting / Quick Reference Guide Active Alarm Problem Things to Check Solution EMERGENCY Unit will not start in AUTO Check screen for Verify emergency stop button is STOP with mains power loss. additional information. disengaged (pulled out). Clear alarm. Clear alarm. Using control panel, inspect battery by navigating to BATTERY MENU Yellow LED illuminated in Check screen for...
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  • Page 47: Section 6: Servicing Centers

    Tel.: +971 4 8865275 Tel.: +34 968 334 900 Fax: +971 4 8865276 Fax: +34 968 579 321 PRAMAC - GENERAC UK Ltd PRAMAC RUS LTD 5 - 6, Orion Way, Crewe, Cheshire, England, CW1 6NG Neverovskogo street 9, office 316 Moscow...
  • Page 48 Part No. 10000041162 Rev. B 05/10/19 ©2019 Generac Power Systems, Inc. All rights reserved PR INDUSTRIAL s.r.l. Specifications are subject to change without notice. Località Il Piano snc No reproduction allowed in any form without prior written 53031 Casole d'Elsa, Siena - Italy consent from Generac Power Systems, Inc.

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