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Armstrong EHU-803 User Manual

Armstrong EHU-803
60 pages
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Series EHU-800 Humidifier
Installation and Operation Manual
530-EN V2.4
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Armstrong EHU-803 Specifications

General IconGeneral
BrandArmstrong
ModelEHU-803
CategoryHumidifier
LanguageEnglish

Summary

About the Series EHU-800

Safety Precautions

Essential safety guidelines for protecting personnel and equipment during operation and maintenance.

Transportation and Storage Conditions

Specifications for safely transporting and storing the EHU-800 humidifier to prevent damage.

Operational Requirements

Key requirements for humidifier installation and operation, including electrical specifications and safety.

Description of Nameplate

Accreditation and Compliance

Dimensions and Weight

Humidifier Components Part Overview

Preparation and Installation

Site Selection Criteria

Factors to consider when choosing the optimal location for installing the humidifier.

Water Quality and Treatment

Water Quality Remedies

Solutions and troubleshooting advice for issues arising from water quality parameters.

Installation Steps

Step 1: Placing and Wall Attachment

Instructions for physically mounting the humidifier securely.

Step 2: Water Connection

Guidance on connecting water supply and drainage lines.

Step 3: Steam Pipe Positioning

Procedures for installing the steam dispersion tube in the ductwork.

Electrical Connections

Control Wiring

Control Signal Configuration

Setting dipswitches for selecting the correct control signal type (VDC, mA).

Controller and Safety Switch Integration

Connecting humidistats, pressure switches, and limit controls to the EHU-800.

Performance Specifications

Remote Information Board

Control Humidistat Types

Airflow Switch Connection

Instructions for wiring an airflow switch for safety and control.

System Management

Menu Screens and Navigation

Navigating the EHU-800's menu system for status checks and configuration.

Configuration Options

Procedure for changing humidifier configuration settings via the control panel.

Maintenance Messages

Error Messages

Contactor and Inlet Valve Errors

Diagnosing and fixing errors related to contactors and the inlet water valve.

Water Inlet and Drain Errors

Troubleshooting issues with water supply, drain circuits, and tank cleaning errors.

Communications Setup

Modbus Communication

Configuring Modbus communication for data exchange and control.

Modbus Variants List

Operational Guidelines

General Maintenance

Routine Service Checks

Specific checks to perform during routine maintenance to ensure proper operation.

Steam Generator Maintenance

Tank Cleaning Procedures

Tank Removal and Replacement

Electrode Replacement

Guidance on replacing electrodes due to wear or damage.

Tank Disassembly

Valves Maintenance

Start Up Checklist

Start Up Procedure

Legacy EHU PCB Index

Control Connection

Limited Warranty and Remedy

Special Warranty Period

Specific warranty coverage details for the EHU-800 series humidifiers.

Principle of Operation

Explanation of how the EHU-800 generates steam and controls humidity.

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