Progressive Industries Electrical Management System (EMS)

Introduction

This manual provides detailed instructions for the installation and operation of the Progressive Industries Electrical Management System (EMS) models EMS-HW30C and EMS-HW50C. These systems are designed to protect recreational vehicles (RVs) from electrical faults such as high/low voltage, reverse polarity, open neutral, open ground, and power surges.

Key Features

• High/Low Voltage Protection: Automatically shuts down power when voltage is outside the safe operating range (104-132 volts).
• Time Delay for A/C Compressor: Protects air conditioning units by providing a delay before restoring power after a fault is corrected.
• Surge Protection: Offers robust surge protection to safeguard RV appliances from power spikes. The EMS-HW30C provides 3-mode protection, while the EMS-HW50C offers 5-mode protection.
• Diagnostic Error Codes: Displays specific error codes to help identify and troubleshoot electrical issues.
• Remote Display: Provides continuous monitoring of voltage, current, frequency, and error codes.
• Modular Design: Ensures easy and user-friendly repairs with plug-and-play replacement parts.

Important Warnings

Safety First: Always disconnect AC power before installation or servicing. RV wiring differs from house wiring; never connect neutral and ground conductors. Do not modify the unit, as this will void the warranty and compromise safety. Always use appropriately rated extension cords and ensure connections are secure.

For installation, Progressive Industries recommends consulting a certified electrician. For more information, visit progressiveindustries.net.