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andrews ECOflo EC380/980 - User Manual

andrews ECOflo EC380/980
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INSTALLATION AND SERVICE MANUAL Part number E864
Andrews. Built to perform.
Please read and understand these instructions before commencing installation and leave this manual with the customer for future reference.
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MVYUH[\YHSNHZHUKWYVWHUL48/
EC230/600, EC230/700, EC230/960, EC380/740, EC380/980, EC380/1220, EC380/1400 and EC380/1900
LEC230/600, LEC230/700, LEC230/960, LEC380/740, LEC380/980, LEC380/1220,
LEC380/1400 and LEC380/1900

Table of Contents

Questions and Answers

  • B
    Brent ChandlerAug 5, 2025
    What to do if the andrews ECOflo EC380/980 upper sensor reading is faulty?
    • T
      Tiffany HillAug 5, 2025
      If the Andrews Water Heater's upper sensor reading is faulty due to the resistance being out of range, first, check the continuity of the wire harness to the upper sensor. If the wire harness is okay, then replace the upper sensor.
  • S
    Sheri AndersonAug 9, 2025
    What to do if flame detected before ignition in andrews ECOflo EC380/980 Water Heater?
    • T
      Tyler GilbertAug 9, 2025
      If the Andrews Water Heater detects a flame before ignition, ensure the gas valve has closed and that no voltage is present at the gas valve before the ignition cycle. Also, verify the wire positions on the wire harness are correct. If the gas valve is stuck open, replace it.
  • A
    Allison WardAug 13, 2025
    What to do if flame detected after heating cycle completes in Andrews Water Heater?
    • G
      gregcameronAug 13, 2025
      If the Andrews Water Heater continues to detect a flame after the heating cycle completes, verify that the gas valve has closed and that there's no voltage present at the gas valve after the cycle. Also, check to ensure the wire positions on the wire harness are correct. If the gas valve remains stuck open, it should be replaced.
  • N
    nstoutAug 18, 2025
    What to do if Andrews Water Heater flame sensed out of normal sequence?
    • M
      Michelle GreeneAug 18, 2025
      If the Andrews Water Heater senses a flame out of the normal sequence (either before the gas valve opens or after it closes), verify that the gas valve has closed completely. Ensure there is no voltage present at the gas valve before or after the ignition cycle. Also, confirm that the wire positions on the wire harness are correct. If the gas valve is stuck open, replace it.
  • A
    Andrea CarterAug 27, 2025
    What to do if andrews ECOflo EC380/980 damper end switch failed to close (stuck open)?
    • R
      Rebecca HaynesAug 27, 2025
      If the flue damper on your Andrews Water Heater is stuck open, begin by checking if the flue damper has fully opened. If it hasn't, disconnect the damper harness at the damper plug connection and check for 24 volts between the pins on the red and white wires. If there's no voltage, inspect the wire harness or measure the output on the control board (pins 1&4). If there's still no voltage at the control board, replace it. Replace the wire harness if voltage doesn't pass to the pin terminals from the control. If there is 24 volts at the flue damper connection, replace the flue damper. If the damper is open, disconnect the harness and check continuity between the pins from the black and yellow wires on the flue damper. If there's no continuity, replace the flue damper.
  • D
    Deborah HortonAug 30, 2025
    How to fix low flame sense on andrews ECOflo EC380/980?
    • S
      Sarah PhillipsAug 31, 2025
      To address a low flame sense issue in your Andrews Water Heater, first, determine the flame sense current in the Service mode while the water heater is operating. If it's less than 1.0 microamps, inspect the pilot flame sense rod using emery cloth. If the issue persists, replace the pilot.
  • C
    Cynthia DavisNov 21, 2025
    What to do if andrews ECOflo EC380/980 damper end switch failed to open (stuck closed)?
    • T
      teresa70Nov 21, 2025
      If the flue damper on your Andrews Water Heater is stuck closed, start by checking if the flue damper has fully closed. If not, disconnect the damper harness at the damper plug connection and check for 24 volts between the pins on the red and white wires. If there's no voltage, check the wire harness or measure the output on the control board (pins 1&4). If there's still no voltage at the control board, replace it. If voltage doesn't pass through the wire harness to the pin terminals from the control, replace the wire harness. If there is 24 volts at the flue damper connection, replace the flue damper. If the damper is closed, disconnect the harness and check continuity between the pins from the black and yellow wires on the flue damper. If there is continuity, the end switch is stuck open...

Summary

General and Safety Information

Health and Safety Regulations 1993 Compliance

Discusses manufacturer's duty for product safety and user precautions.

Technical Data

ECOflo Range Specifications

Specifications for the ECOflo range, including natural gas and propane models.

Dimensions and Clearances for Installation

Provides diagrams and dimensions for installation clearances.

Installation Procedures

Selecting the Installation Location

Guidelines for selecting a suitable installation location for the heater.

Condensate Drain Requirements

Describes the requirement and setup for the condensate drain.

Determining Required Flue Length

Instructions on calculating the maximum allowable flue length.

Flue System Overview and Requirements

Describes the concentric flue system and its components.

Water Connections for Heaters

Details the front hot and cold water supply connections.

Gas Connections Specifications

Specifies gas inlet connections for different models.

Scalding Prevention Measures

Advises on avoiding scalding injuries from hot water.

Propane Gas Supply Installation

Requirements for propane gas supply installation.

Direct Flue Terminal Installation Guidelines

Details installation requirements for the direct flue terminal.

Maximum Flue Distances and Elbows

Specifies maximum allowable flue distances and bend limitations.

Typical Flue System Installation Positions

Shows typical installation positions and minimum distances for flue terminals.

Installing the Horizontal Flue Terminal

Step-by-step instructions for installing the horizontal flue terminal.

Installing the Vertical Flue Terminal

Step-by-step instructions for installing the vertical flue terminal.

Connecting Flue Piping Sections

How to connect coaxial flue pipe sections for different applications.

Air Supply and Ventilation Requirements

Requirements for air supply and ventilation for the heater.

Water Connections for Unvented Systems

Details water connections for unvented systems and kits.

Time vs. Temperature Scald Chart

Chart detailing time/temperature relationships for scald injury.

Gas Pressure Regulation and Settings

Details on gas pressure regulation and setting requirements.

Natural Gas Supply Installation Requirements

Requirements for natural gas supply installation.

Electrical Supply and Wiring Guidelines

Details on electrical supply requirements and connection.

Appliance Wiring Diagram

Provides the wiring diagram for the appliance.

Appliance Schematic Diagram

Provides the schematic diagram for the appliance.

Flue System Requirements

Explains the balanced flue system, concentric design, and terminals.

Commissioning the Water Heater

User Safety Guide Before Appliance Lighting

Safety precautions before lighting the appliance.

Actions for Smelling Gas

Actions to take if gas is smelled.

General Safety Precautions for Use

General safety advice for using the appliance.

Operating Instructions

Filling the Water Heater with Water

Instructions for filling the water heater.

Lighting Instructions for the Water Heater

Instructions for lighting the water heater.

Safety Precautions Before Lighting

Safety warnings before attempting to light the appliance.

Detailed Lighting Procedure Steps

Detailed steps for lighting the appliance.

Servicing and Maintenance

Pre-Service Operations Checklist

Steps to take before performing servicing.

Draining the Water Heater Procedure

Procedure for draining the water heater for maintenance or shutdown.

Filling the Water Heater Procedure

Procedure for filling the water heater after draining or maintenance.

Accessing Service Mode on the Water Heater Display

Guide for service personnel to enter the display's service mode.

Changing the Maximum Setpoint Limit

Procedure to adjust the maximum user-selectable temperature setpoint.

Resetting Control from Lockout Conditions

Procedures to reset the control from lockout conditions.

Honeywell Controls Diagnostic Error Codes

Lists error codes and troubleshooting actions for Honeywell controls.

Fault Finding Guide

Troubleshooting: Burner Flame Keeps Going Out

Addresses issues with the burner flame repeatedly extinguishing.

andrews ECOflo EC380/980 Specifications

General IconGeneral
ModelECOflo EC380/980
CategoryWater Heater
TypeElectric
Capacity380 Litres
InsulationPolyurethane

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