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Argo AT0623 User Manual

Argo AT0623
36 pages
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INSTALLATION, OPER ATION
& MAINTENANCE MANUAL
An ISO 9001-2008 Certied Company
Information and specications outlined in this manual in effect at the
time of printing of this manual. ECR International, Inc. reserves the
right to discontinue, change specications or system design at any
time without notice and without incurring any obligation, whatsoever.
"AT" SERIES ELECTRIC
HOT WATER BOILERS
FOR FORCED HOT WATER
Manufactured by:
ECR International, Inc.
2201 Dwyer Avenue, Utica NY 13501
web site: www.ecrinternational.com
P/N# 240009740, Rev. A [09/2013]
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Argo AT0623 Specifications

General IconGeneral
Room SizeUp to 60 m²
Power Output6 kW
Frequency50 Hz
Dimensions740x440x235 mm
Weight24 kg
Heating Element MaterialStainless steel
MountingWall-mounted

Summary

AT Series Boiler Dimensions

Important Safety Information

Introduction to Argo Boilers

Product Description

Details the electric hydronic block as a heating device converting electrical energy to heat.

Standard Features

Lists the key features and capabilities of the Argo electric boiler control system.

Unpacking and Inspection

Instructions for unpacking and inspecting the boiler unit for damage or missing parts.

Voltage Rating and Electrical Specifications

Boiler Location and Clearance Requirements

Hydronic Piping and System Design

Circulating System Design

Guidelines for designing the circulating system including primary/secondary piping and flow rates.

Supply and Return Piping Connections

Procedures for connecting supply and return piping, including low water cutoff and backflow preventer.

Electrical Connections and Field Wiring

Boiler Wiring Guidelines

Guidelines for boiler wiring, including material requirements and connection methods.

Field Wiring Practices

Best practices for field wiring, including conductor types, strip length, and termination.

Electrical Connections and Control Wiring

Limit Control Operation

Explains the operation of limit controls for safety and system management.

Thermostat Installation Guide

Provides guidelines for installing the thermostat for optimal performance and accuracy.

Wiring Connections on Control Board

Details how to connect pump and thermostat wiring to the control board terminals.

Sequence of Operation Overview

Sequence of Operation and Controller Settings

Setting the AT Boiler Controller

Instructions for setting operating modes, temperature scales, and other configuration parameters.

Sequence of Operation and Status Indicators

Boiler Display Codes and Indicators

Explains the meaning of various display codes for boiler status and operation.

Fault Codes and Troubleshooting Indicators

Lists and describes fault codes, their causes, and required actions for diagnosis.

Control Operation and System Modes

Initial Start-Up Procedure

Steps for the initial startup of the boiler, including power application and bypass modes.

Two Temperature Operation Modes

Details operation for controlling two loads, like comfort heating and domestic hot water.

Setting Water Temperature

Guide on how to set desired water temperatures for heating and hot water.

Heating Operation Sequence

Describes the sequence of events when the boiler operates to provide heat.

Dry Fire Test Mode Operation

Explains the dry fire test function, its purpose, and how it operates.

Control Operation and System Inputs

Load Management Control (LMC) Function

Information on using the LMC feature to temporarily de-activate the boiler for peak demand periods.

Flow Sensor Input (FLO) Function

How to connect and utilize a flow sensor to prevent operation without water flow.

Low Water Cutoff Sensor Input (LWCO) Function

Details on connecting a low water cutoff sensor for safety and preventing dry operation.

Anti-Short Cycle Timer Operation

Explains the timers that prevent rapid cycling of heating elements and pumps.

Pump Exercising Function

Describes the automatic pump exercising feature to prevent seizing.

Non-Volatile Memory Function

Explains that user settings are retained even after power loss.

Control Operation and Fault Diagnostics

Boiler Fault Codes and Alarms

Lists and explains various fault codes, their indicators, and required actions.

Installer Test Mode Operation

Guide for entering and using the installer test mode for unit verification.

Wiring Diagrams

2-Element Boiler Wiring Diagram

Detailed wiring diagram for a 2-element boiler configuration with breakers.

Wiring Diagrams

4-Element Boiler Wiring Diagram

Detailed wiring diagram for a 4-element boiler configuration with breakers.

Startup and Seasonal Maintenance

Placing Hydronic Block into Service

Steps for putting the hydronic block into service, including breaker checks and system filling.

General Maintenance Procedures

Additional Wiring Diagrams

Single Zone with Circulator Wiring

Wiring diagram for a single zone system with circulators for two boilers.

Additional Wiring Diagrams

Two Zones with Circulator Wiring

Wiring diagram for a two-zone system with circulators for two boilers.

Three Zones Zone Valve Wiring

Wiring diagram for a three-zone system using zone control valves for two boilers.

Additional Wiring Diagrams

Three Zones Control Valve Wiring

Wiring diagram for a three-zone system using zone control valves.

Three Zones with Circulator Wiring

Wiring diagram for a three-zone system using circulators.

Modular Boiler Piping Configuration

Troubleshooting Common Issues

Troubleshooting a Noisy Boiler

Identifies potential causes and solutions for noisy boiler operation.

Heating Element Replacement Procedure

Step-by-step guide for safely replacing a heating element.

Troubleshooting Guide for AT Boilers

AT Boiler Specific Troubleshooting

Table of faults, possible causes, and corrective actions for AT boiler issues.

Troubleshooting Guide for System Faults

Flow Switch Alarm Troubleshooting

Explains troubleshooting steps for flow switch alarms and related system issues.

Low Water Cutoff Alarm Troubleshooting

Guide to troubleshooting low water cutoff alarms and water level issues.

Control Display Unresponsive Troubleshooting

Steps to diagnose issues when the control display is dark or unresponsive.

Boiler Not Heating Troubleshooting

Addresses issues where the boiler operates but does not produce heat.

Resistance vs. Temperature Data

Parts List for 2 & 4 Element Boilers

Homeowner's Reference Information

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