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Generac Power Systems 0043736, 0046265 User Manual

Generac Power Systems 0043736, 0046265
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POWER SYSTEMS, INC.
®
®
Owner’s Manual
Liquid-cooled, Prepackaged
Standby Generators
Models: 0043736
(40 kW/Single-phase w/
200 Amp Transfer
Switch)
0046265
(40 kW/Single-phase w/
200 Amp Transfer
Switch California
Emissions)
ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT
INSTALLATION!!
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!
This manual should remain with the unit.
Not intended for use in critical life support applications.
!
!

Table of Contents

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Generac Power Systems 0043736, 0046265 Specifications

General IconGeneral
BrandGenerac Power Systems
Model0043736, 0046265
CategoryInverter
LanguageEnglish

Summary

Introduction

Operation and Maintenance

Details on the operator's responsibility for safe operation and routine maintenance.

How to Obtain Service

Instructions on contacting a Generac/Guardian Authorized Dealer for service.

Safety Rules

Important Safety Instructions

Crucial safety guidelines for installation, operation, and maintenance.

General Hazards

General safety precautions and hazards associated with the generator.

Electrical Hazards

Warnings and precautions related to electrical shock and hazards.

Fire Hazards

Safety advice concerning fire risks and prevention measures.

Explosion Hazards

Precautions to avoid explosion risks from fuel and gases.

General Information

Unpacking/Inspection

Procedure for unpacking and inspecting the generator for damage.

The Generator

Overview of the liquid-cooled Guardian generator's purpose and use.

Generator AC Connection Systems

Explanation of the single-phase generator AC connection system.

Prepackaged Transfer Switch

Information about the NEMA 3R enclosure transfer switch.

Automatic System Operation

Description of how the generator operates automatically during utility failure.

Main Circuit Breaker

Details on the generator's main circuit breaker.

Engine Protective Devices

Explanation of safety switches that shut down the engine.

Specifications

Technical specifications for the generator models.

Generator and Load Compatibility

Ensuring compatibility between the generator and electrical loads.

Engine

Detailed engine specifications and features.

Fuel Requirements and Recommendations

Guidelines for using natural gas and LP gas fuels.

Engine Oil Recommendations

Recommended engine oil types and viscosity based on temperature.

Coolant

Information on recommended coolant mixture and safety precautions.

Emissions Control System

Details on the emission control system for specific models.

Installation

Standby Generator Installation

General safety and requirements for standby generator installation.

NFPA Standards

List of relevant National Fire Protection Association standards.

Other Published Standards

References to other applicable building and agricultural standards.

Basic Standby Electric System

Schematic and function of a basic standby electric system.

Emergency Circuit Isolation Method

Method to prevent generator overloading by isolating critical loads.

Total Circuit Isolation Method

Method for generators powering all electrical loads.

Grounding the Generator

Requirements for proper grounding of the generator frame.

Generator AC Neutral Connections

Information on generator AC neutral connections.

Transfer Switch Start Signal Connections

Wiring connections for transfer switch start signals.

Battery Installation

Safety precautions and procedures for installing the battery.

Vented Batteries

Specific procedures and cautions for handling vented batteries.

Preparation Before Start-up

Steps to prepare the generator before initial start-up.

Operation

Control Console Components

Description of the components on the generator control console.

Using the Auto/Off/Manual Switch

Instructions for operating the AUTO/OFF/MANUAL switch.

Automatic Transfer Operation

Procedure to set up and initiate automatic transfer operation.

Sequence of Automatic Operation

Detailed steps of the automatic generator operation sequence.

Engine Heater

Information on the generator's engine block heater.

Weekly Exercise Cycle

How to program and manage the weekly generator exercise cycle.

Maintenance

Checking the Engine Oil Level

Procedure for checking and maintaining the engine oil level.

Changing the Engine Oil and Filter

Steps for performing engine oil and filter changes.

Changing the Engine Air Cleaner

Procedure for replacing the engine air cleaner element.

Spark Plugs

Maintenance and adjustment of spark plugs.

Battery Maintenance

Inspection and maintenance procedures for the generator battery.

Cooling System

Ensuring proper cooling system operation and airflow.

Overload Protection for Engine DC Electrical System

Details on DC electrical system overload protection.

DC Fuse

Information on the 15-amp DC fuse for the control circuit.

Engine Coolant

Checking and maintaining the engine coolant level.

Miscellaneous Maintenance

General maintenance tasks like cleaning and rodent protection.

Out of Service Procedure

Steps for preparing the generator for long-term storage.

Service Schedule

Recommended service intervals for various generator components.

Troubleshooting

Troubleshooting Guide

Guide to identify and correct common generator problems.

Installation Diagram

Drawing No. 0E7015

Diagram showing installation layout and dimensions.

Electrical Data

Electrical Schematic (Stepper Motor) – Drawing No. 0A5858

Electrical schematic for the stepper motor control.

Wiring Diagram – Pre-pack Panel (4.3L) – Drawing No. 0D4992-A

Wiring diagram for the pre-pack control panel.

Wiring Diagram/Schematic – Lower Panel – Drawing No. 0D5997

Wiring diagram for the lower control panel.

Wiring Diagram - Control Panel - Drawing No. 0D6974

Wiring diagram for the control panel.

Electrical Schematic - Control Panel - Drawing No. 0D6975

Electrical schematic for the control panel.

Wiring Diagram - Drawing No. 0E2966

Wiring diagram for engine components.

Wiring Diagram - Drawing No. 0E2967

Wiring diagram for engine components.

Exploded Views and Parts Lists

Mounting Base - Drawing No. 0E6976

Exploded view and parts list for the generator mounting base.

Compartment - Drawing No. 0D8992

Exploded view and parts list for the generator compartment.

Control Panel 4.3L – Drawing No. 0D4995-F

Exploded view and parts list for the 4.3L control panel.

Control Panel - Drawing No. 0D6978-C

Exploded view and parts list for the control panel.

Connection Box – Drawing No. 0E6892-A

Exploded view and parts list for the connection box.

Generator - Drawing No. 0E6891

Exploded view and parts list for the generator assembly.

Engine - Drawing No. 0D6980-B

Exploded view and parts list for the engine assembly.

Engine - Drawing No. 0A4304-L

Exploded view and parts list for the engine assembly.

4.3L Radiator – Drawing No. 0D7992-D

Exploded view and parts list for the 4.3L radiator.

4.3L Exhaust – Drawing No. 0E0704-A

Exploded view and parts list for the 4.3L exhaust system.

4.3L Nat. Gas Fuel System – Drawing No. 0E7011

Exploded view and parts list for the 4.3L natural gas fuel system.

4.3L Nat. Gas Fuel System – Drawing No. 0E7013

Exploded view and parts list for the 4.3L natural gas fuel system.

Exhaust - Drawing No. 0E1347-A

Exploded view and parts list for the exhaust system.

Notes

Warranty

California Emission Control Warranty Statement

Statement of warranty rights and obligations for California emissions.

Emission Control System Warranty

Details on the ECS warranty coverage and covered parts.

Generac Power Systems Standard "Two Year" Limited Warranty

Two-year limited warranty for Guardian standby generators.

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