Eccotemp 45HI-NG Installation, Use And Care Instructions

Eccotemp 45HI-NG Installation, Use And Care Instructions

Whole-home tankless water heaters

Advertisement

45H-LP/NG
45HI-LP/NG
45H SERIES MANUAL
WHOLE-HOME TANKLESS WATER HEATERS
INSTALLATION, USE AND CARE INSTRUCTIONS
WHOLE HOME
MID SIZE HOME
TOWN HOME
APARTMENT / CONDOS
SHOWER
TINY HOUSE
CABINS
OFFICE

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 45HI-NG and is the answer not in the manual?

Questions and answers

Summary of Contents for Eccotemp 45HI-NG

  • Page 1 45H-LP/NG 45HI-LP/NG 45H SERIES MANUAL WHOLE-HOME TANKLESS WATER HEATERS INSTALLATION, USE AND CARE INSTRUCTIONS WHOLE HOME MID SIZE HOME TOWN HOME APARTMENT / CONDOS SHOWER TINY HOUSE CABINS OFFICE...
  • Page 2 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 3 INDOOR USE ONLY PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 4 Installation and service must be perfromed by by a qualified installer or service technician. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 5 fire. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 6: Table Of Contents

    Notes ......59 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 7 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 8 90°F and 140°F. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 9 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 10: Safety Precautions

    Part 1, in the absence of local codes. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 11: Typical Installation

    Typical Installation (Some Items May Not Apply) PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 12 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 13 Vent Kit PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 14: Location

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 15: Water Connections

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 16: Relief Valve

    Do not plug the relief valve. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 17: Leak Testing

    1/2 psi (14’w.c.). HIGH ALTITUDE The Eccotemp 45H Series Gas Tankless Water Heater has been tested for use at elevations up to 2000 ft. Installation and use of the Eccotemp 45H above 2000 ft. may effect overall efficiency and performance.
  • Page 18: Venting

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 19: Remote Control

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 20 Replace the front cover on the remote control. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 21: Electrical Connection

    Sensor PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 22: Pipe Insulation

    DO NOT install this product where standing water may occur. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 23: Mounting

    DO NOT reverse the hot and cold water connections. The water heater will not operate. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 24: Installation Checklist

    ॶ GFCI Protection where required. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 25: Typical Installation

    ON/OFFU PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 26 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 27 Shipments Only) PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 28: Location

    18 inches above the garage floor. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 29 Failure to install and properly vent the water heater to the outdoors as outlined in the Venting Section of this manual can result in unsafe operation. Owner must refer to vent manufacturer’s instructions and specifications. Eccotemp information can be found at www.eccotemp.com, please refer to page 38 for additional links. •...
  • Page 30: Water Connections

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 31: Gas Supply

    Use compound sparingly and use on male threads only. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 32: Relief Valve

    HIGH ALTITUDE The Eccotemp 45HI Gas Tankless Water Heater has been tested for use at elevations up to 2000 ft. Installation and use of the Eccotemp 45HI above 2000 ft. may effect overall efficiency and performance. Please consult with a gas technician for pressure adjustments at your homes regulator.
  • Page 33: Venting

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 34 Not following proper condensate procedures will void warranty. Eccotemp also recommends adding a backflow preventer to keep freezing outside air from reaching the water heater. Consult with an installation professional for proper installation.
  • Page 35 45HI. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 36 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 37 • PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 38 Brackets PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 39 1/4” per foot DOWNWARD Slope PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 40: Remote Control

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 41 Replace the front cover on the remote control. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 42: Electrical Connection

    Water Outlet PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 43: Pipe Insulation

    DO NOT install this product where standing water may occur. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 44: Mounting

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 45: Installation Checklist

    ॶ GFCI Protection where required. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 46: Operation Instructions

    “OFF” position. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 47 NOTICE! Flammable vapors can be drawn by air currents from surrounding areas to the water heater. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 48: Water Temperature

    The BATH control(s) will always have PRIORITY over the MAIN control. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 49: Care And Cleaning

    6 MONTH CLEANING ROUTINE To prevent water scale, lime or rust deposit buildup and ensure your Eccotemp tankless water heater is running as efficiently as possible it is highly recommended that you clean your Eccotemp tankless water heater every 6 months.
  • Page 50: Extended Shut-Down

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 51: Draining

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 52 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 53: Troubleshooting

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 54: Error Code Guide

    VERIFY PROPER OPERATION AFTER SERVICING. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 55: Parts List

    PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 56 PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 57: Warranty

    Please contact Eccotemp to obtain an RGA number prior to shipping anything to Eccotemp. Failure to do so could result in loss of Product. Eccotemp will not be responsible for replacement due to loss or damage if these steps are not properly followed.
  • Page 58 Product is not intended to be used as set forth in Eccotemp’s Installation Manual and Use & Care Manual. 5. A repair, replacement, or refund will not be provided if the Product is damaged as a result of improper installation, including improper ventilation materials, sizing, length, elevation, condensation drainage, or inadequate airflow.
  • Page 59: Notes

    NOTES PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS SUBJECTED TO CHANGE WITH OUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION. Support: support.eccotemp.com Shop Online: www.eccotemp.com...
  • Page 60 315 - A INDUSTRIAL ROAD, SUMMERVILLE, SC 29483 | 1 - 866 - 356 - 1992 © Eccotemp 2024 All Rights Reserved | Printing Version 1.0...

Table of Contents