Atmor AT-910-27TP User Manual

www.atmorusa.com
Electric Tankless Water Heaters
ThermoPro Series
Models:
AT-910-18TP, AT-910-24TP, AT-910-27TP,
Hot Water on Demand

Atmor AT-910-27TP Specifications

General

Brand	Atmor
Model	AT-910-27TP
Category	Water Heater
Language	English

Summary

Important Safety Guidelines

Safety Alert Symbols and Words

Explains safety alert symbols and words used in the manual for hazard communication.

Critical Usage Warning

Emphasizes reading the manual before installation and use to avoid damage, injury, or death.

Before Installing

Warranty and Return Policy

Informs about manufacturer's warranty and authorized dealer's return policy upon installation.

Safety Guidelines

Adherence to Safety Guidelines

Warns that failing to follow safety guidelines can lead to severe injury or death.

About Your Atmor Electric Tankless Water Heater

Water Temperature Safety

Advises caution when setting water temperature to prevent burns, especially for vulnerable individuals.

Selecting an Installation Location

Location Safety and Environmental Precautions

Covers child safety, avoiding freezing temps, humidity, dust, and flammable materials for proper installation.

Leakage Damage Prevention Measures

Suggests avoiding locations prone to damage from leaks by using drip pans or leak detectors.

Mounting Your Water Heater

Mounting Procedures and Safety

Details mounting steps, upright orientation, flammable material clearance, and ensuring level installation.

Upper Floor Installation Compliance

Stresses compliance with local codes for installations in upper floors or attics, including leak prevention.

Plumbing Requirements and Precautions

Code Compliance and Soldering Warning

Stresses adherence to plumbing codes and warns against soldering connected pipes to prevent sensor damage.

Pressure and Flow Rate Specifications

Details maximum operating pressure and minimum required flow rate for proper unit operation.

Plumbing Installation Steps

Line Flushing and Air Purging

Emphasizes flushing water lines and purging air from the unit before powering on to prevent damage.

Leak Detection and Response

Advises immediate response to water leaks, including shutting off supply and contacting service.

Electrical Requirements and Precautions

Electrical Code and Safety Compliance

Advises installation compliance with electrical codes and stresses power shutoff safety before work.

Power Availability and Wiring Standards

Covers ensuring sufficient power and adhering to wiring standards like NEC/CEC for safe installation.

Electrical Installation Steps

Connection and Verification Procedures

Details connecting wires to the breaker, routing cables, and double-checking connections for correctness and security.

Correct Wiring for Unit Operation

Stresses the importance of following wire connection instructions for correct unit operation and avoiding issues.

Flow Rate Specifications

Operation Guide

System Operation and Limitations

Explains demand-based heating, flow rate limitations, and seasonal impacts on hot water supply.

Household Reading Recommendation

Recommends that all household members read the operating instructions for optimal use.

Water Quality Considerations

Water Quality for Heater Longevity

Emphasizes considering water quality for installation and maintenance to prevent heater damage.

Scale Prevention and Maintenance

Recommends water treatment, filter cleaning, and flushing to prevent scale buildup and maintain performance.

Care and Maintenance

Maintenance Warning and Procedures

Warns that improper maintenance can cause permanent damage and void warranty; outlines basic checks.

User Interface and Controls

Post-Maintenance Procedures

Details purging air from lines and checking temperature after maintenance to ensure safe operation.

Power and Temperature Adjustment

Explains how to control power and set output water temperature using the knob, including recommended settings.

Safety Warnings for Temperature Settings

Warns that higher temperature settings can cause severe scalding injuries, especially to children and the elderly.

First-Time System Startup

Initial Operation and Temperature Setting

Describes activating the heater for the first time with running water and setting the recommended temperature.

Protection Against Freezing Temperatures

Freezing Protection and Warranty

Advises protecting the heater from freezing and warns that freezing damage is not covered by warranty.

Troubleshooting Common Issues

No Hot Water or Display Problems

Addresses issues with no hot water and display not lighting up or being on, providing causes and solutions.

Insufficient Heating Issues

Provides solutions for water being heated but not hot enough, covering low settings, pressure, and mixing.

Thermal Loss and Pipe Issues

Explains thermal loss in long pipes and suggests increasing the heater's temperature setting to compensate.

Voltage Impact and Overheating

Unit Shutdown and Flow Interruption

Addresses the heater shutting off or water flow stopping, suggesting power and supply line checks.

Variable Temperature Troubleshooting

Troubleshoots variations in water temperature during use, citing potential causes like flow rate or temperature settings.

Resetting the Unit

Unit Reset Procedure and Caution

Details the reset button procedure and warns against frequent resetting, advising customer service contact.

Limited Warranty Information

Warranty Coverage and Service

Outlines the two-year warranty, service contact, and conditions that void the warranty.