EasyManua.ls Logo

Hubbell 280-3 User Manual

Hubbell 280-3
40 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
INSTALLATION, OPERATION, AND
MAINTENANCE MANUAL FOR
THE HUBBELL TANKLESS WATER HEATER
ELECTRIC HEATER COMPANY
Edition 2016A
Question and Answer IconNeed help?

Do you have a question about the Hubbell 280-3 and is the answer not in the manual?

Hubbell 280-3 Specifications

General IconGeneral
BrandHubbell
Watts3000
Volts240
Voltage Rating240V
Current Rating12.5 A
Power Rating3 kW
CategoryWater Heater
PhaseSingle
Temperature RangeAdjustable up to 180°F
Thermostat TypeAdjustable

Summary

Important Safety Information

SECTION I – TANKLESS WATER HEATER OPERATING PRINCIPLE

How the Hubbell Tankless Water Heater Works

Details the on-demand heating mechanism using flow sensors and temperature monitoring.

SECTION II – GENERAL DESCRIPTION AND CONSTRUCTION

Product Overview

Details the internal components and external features of the tankless water heater.

Key Model Specifications

Covers technical specifications and performance data for models 280-3, 240-3, and 220-3.

Additional Model Specifications

Details technical specifications and performance data for models 180-2, 165-2, and 145-2.

Model 110-2 Specifications and Formulas

Details specifications for Model 110-2 and provides key operational formulas like wattage de-rating.

SECTION III – INSTALLATION

Locating and Mounting Instructions

Guidelines for choosing an installation location and physically mounting the unit safely.

Plumbing Installation Instructions

Instructions for connecting the water heater to the plumbing system and associated requirements.

Checking for Leaks and Purging Air

Procedures to ensure no leaks and remove air from the system before powering on.

Typical Accessory Piping (Optional)

Illustrates common optional plumbing configurations and accessories for the unit.

SECTION IV – OPERATION AND MAINTENANCE

Electrical Installation Instructions

Guidelines for wiring the water heater according to electrical codes and specifications.

First Use of your Hubbell Tankless Water Heater

Initial steps for operating the unit after installation, including temperature setting.

Temperature Controller User Interface Instructions

How to navigate and use the water heater's digital controller for settings and diagnostics.

Controller Settings and Display Modes

Explains various settings like display modes, power limiting, heater quantity, and calibration.

Diagnostic Display and Cost Calculator

Details diagnostic data display, cost calculator, and power rate display functionalities.

Error Codes and Remote Controls

Lists error codes and explains priority relay and remote control functionalities.

SECTION V – TROUBLESHOOTING

Initial Evaluation Flowchart

A flowchart to guide initial diagnosis of common water heater problems.

Advanced Troubleshooting Steps

Detailed electrical and component troubleshooting procedures for qualified technicians.

Tools and Pre-Operational Checks

Lists required tools and initial checks before performing advanced troubleshooting.

Checking Hi-Limit Thermostats and Thermistors

Procedures to test hi-limit thermostats and thermistor resistance for fault diagnosis.

Checking the Flow Meter

Steps to test the flow meter's voltage output to diagnose operational issues.

Checking Temperature Controller and Triacs

Procedures for testing the temperature controller and triacs for proper operation.

Checking Heating Elements and Triacs (Step 2)

Methods to verify heating element amperage draw and triac functionality.

SECTION VI – SERVICING & REPLACEMENT OF PARTS

Heating Element Replacement

Step-by-step guide for replacing a heating element in the water heater.

Hi-Limit Switch Replacement

Instructions for replacing the hi-limit switch component.

Thermistor and Controller Replacement

Procedures for replacing inlet/outlet thermistors and the temperature controller.

Triac and Flow Meter Replacement

Guides for replacing the triac switching components and the flow meter.

Control Fuse Replacement

Instructions for replacing the unit's internal control fuse.

SECTION VII – PARTS LIST

Plumbing and Triac Components

Lists part numbers for plumbing fittings, heating chambers, and triac components.

Electrical and Wire Components

Lists part numbers for electrical components like thermistors, controllers, and wiring.

Miscellaneous and Cover Components

Lists part numbers for covers, bases, and other miscellaneous items.

SECTION VIII – WARRANTY

Manufacturer's Limited Warranty Terms

Outlines the warranty coverage, duration, and conditions for the water heater.

Warranty Transfer and Limitations

Explains warranty transferability, limitations, and remedies for claims.

Warranty Registration Process

Instructions on how to register the product for warranty coverage within the specified timeframe.

Further Warranty Limitations and Exclusions

Details additional conditions that void the warranty, including code compliance and misuse.

Parts Replacement Procedure (Under Warranty)

Procedure for obtaining and returning parts for warranty service and replacement.

APPENDIX I – SUB-PANEL WIRING DETAILS

2-Element Diagram

Wiring diagram for sub-panel connections for 2-element models.

3-Element Diagram

Wiring diagram for sub-panel connections for 3-element models.

Related product manuals