Valent RTU Microprocessor Controller

Introduction

This document serves as a comprehensive reference guide for the Valent RTU Microprocessor Controller. It details the controller's functionalities, operational sequences, and system integration capabilities for rooftop units. Designed for HVAC professionals, this guide ensures proper installation, operation, and maintenance of the unit.

Key features include advanced control through a graphical display and keypad, pre-programmed operating sequences, Building Management System (BMS) communication, and built-in occupancy scheduling. The controller offers various occupancy modes and remote access options via WebUI and Remote Display.

Key Features and Operation

• Program Features: Easy monitoring and adjustment of unit parameters.
• Pre-Programmed Operating Sequences: Multiple control sequences for tempered air with adjustable parameters.
• BMS Communication: Supports protocols like BACnet® MSTP/IP and Modbus RTU/TCP for remote monitoring and control.
• Built-In Occupancy Schedule: Internal programmable time clock for setting daily occupancy schedules.
• Alarm Management: Monitors unit status for alarms, recording details for user review.
• Occupancy Modes: Offers digital input, occupancy schedule, or BMS for determining occupancy, with options for shutdown or continuous operation in unoccupied modes.
• Remote Unit Access: Access via WebUI or Remote Display for monitoring and parameter adjustment.

Safety Information

Users are advised to read and save these instructions carefully before attempting to assemble, install, operate, or maintain the product. Failure to comply with instructions may void the product warranty and result in personal injury or property damage. Specific warnings are provided for electrical shock hazards and mechanical high static protection cutoffs.

Technical Support

For technical assistance, contact Valent support:

• Phone: 1-800-789-8550
• Email: support@doas.com