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Generac Power Systems 45kW User Manual

Generac Power Systems 45kW
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2.4L
45kW Models
EPA Certified
Owner's Manual
Stationary Emergency Generator
Cover193 Rev. A 04/10 Part No. 0H7318
n
NOT INTENDED FOR USE IN CRITICAL LIFE SUPPORT
APPLICATIONS.
ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS
SHOULD ATTEMPT INSTALLATION! DEADLY EXHAUST
FUMES! OUTDOOR INSTALLATION ONLY!

Table of Contents

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Generac Power Systems 45kW Specifications

General IconGeneral
Power Output45kW
Frequency60 Hz
Engine Speed1800 RPM
Phase3-Phase
Voltage120/240V
Fuel TypeNatural Gas
Transfer SwitchOptional
Warranty5-Year Limited

Summary

Safety Instructions

Read This Manual Thoroughly

Understand critical safety information and warnings before operating or servicing the generator.

Operation and Maintenance

Operator's responsibility for safety checks, prompt maintenance, and periodic servicing by a dealer.

Safety Rules

General Hazards

Guidelines for safe installation, operation, servicing, and repair by qualified personnel.

Electrical Hazards

Warnings about dangerous electrical voltages, shock hazards, and safe practices.

Fire Hazards

Explosion Hazards

General Information

Identification Record

Details on the data label for model, serial number, and unit specifications for service.

Equipment Description

Engine Oil Recommendations

Specifies the recommended engine oil type and grade for optimal performance and protection.

Coolant Recommendations

Details on the correct coolant mixture, anti-freeze type, and rust inhibitors.

Engine Protective Devices

Low Oil Pressure Switch

Automatically shuts down the engine if oil pressure drops below a safe level.

Overspeed Shutdown

Shuts down the engine if it exceeds a safe, preset rotational speed.

High Coolant Temperature Sender

Shuts down engine if coolant temperature exceeds a critical limit.

Fuel System

Fuel Requirements

Specifies required fuel pressure for natural gas and propane systems.

Natural Gas Fuel System

Information regarding natural gas supply, pressure regulation, and safety.

Specifications

Stationary Emergency Generator

Technical specifications for the generator set, including ratings and type.

Engine

Detailed engine specifications like bore, stroke, displacement, and RPM.

Cooling System

Specifications for the cooling system, including type, fan speed, and capacity.

Reconfiguring the Fuel System

Alternator Connections

AC Lead Connections

Details on how to install AC connection wires based on voltage/phase requirements.

Power Winding Connections

Describes stator power winding connections for 3-phase alternators ('Y' config).

3-Phase Alternators ("Delta" Configuration)

Control Panel Interface

Using the Auto/Off/Manual Switch

Explanation of the AUTO, OFF, and MANUAL switch positions and their functions.

Activate the Generator

Steps to activate the generator controller for automatic operation.

Activation Chart

Enter Activation Code (Passcode)

Procedure for entering the activation code to enable full generator functionality.

Operation

Installation Assistant

Initial setup prompts for date, time, and exercise settings upon first power-up.

Setting the Exercise Timer

Configuring the automatic weekly exercise cycle for the generator.

Automatic Transfer Operation

Steps to set up and achieve automatic standby power operation.

Sequence of Automatic Operation

Alarm and Warning Messages

Low Oil Pressure Shutdown Alarm

Indicates engine shutdown due to critically low oil pressure.

High Coolant Temperature Shutdown Alarm

Signals engine shutdown caused by overheating.

Overspeed Shutdown Alarm

Alerts to engine shutdown triggered by excessive rotational speed.

Maintenance Procedures

General Maintenance

Essential pre-work safety checks and general inspection guidelines.

Changing Engine Oil

Step-by-step guide for draining and replacing engine oil and filter.

Cooling System Maintenance

Inspect Cooling System

Checks for hose damage, leaks, and tightness of clamps.

Coolant Change

Recommendation for annual cooling system drain, flush, and refill.

Battery Maintenance

Battery Maintenance

Inspection of battery posts, cables, and fluid levels.

Cleaning the Stationary Emergency Generator

Guidelines for cleaning the generator exterior and interior components.

Service Schedule

Troubleshooting Guide

Warranty

Purchaser's/Owner's Warranty Responsibilities

Owner's obligations for proper installation, maintenance, and operation.

Exploded Views

CPL Alternator Direct Excitation

Exploded view of the alternator assembly, showing component parts.

Connection Box C2 CPL

Exploded view of the connection box assembly and its parts.

Wiring and Schematics

Schematic - Diagram

Diagram showing the electrical schematic for the G2.4L G2 Nexus generator.

Wiring - Diagram Nexus CPL Alternator

Wiring diagrams for Nexus CPL Alternator, including single and three phase configurations.

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