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Summary of Contents for Eccotemp 45 Series
- Page 1 45H-LP/NG 45HI-LP/NG 45 SERIES MANUAL WHOLE-HOME TANKLESS WATER HEATER 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.
- Page 3 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.
- Page 4 • DO NOT return to your home until any other appliance. To do so may result in an authorized by the gas supplier or fire explosion or fire. department. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
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Page 5: Table Of Contents
Warranty ....56-57 NOTICE! – Attention is called to observe a specified procedure or maintain a specific condition. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... - Page 6 18” above the floor. This will reduce, but not eliminate the risk of vapors being ignited by the main burner flame. Read and follow water heater warnings and instructions. If owner manual is missing, contact the retailer or manufacturer. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
- Page 7 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.
- Page 8 • Stay away from the house (or building) until the service call has been made, the leak is corrected, and a qualified agency has determined the area to be safe. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
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Page 9: Safety Precautions
Protection Association, 1 Batterymarch Park, Quincy, MA 02269 as NFPA 54. In Canada, the latest edition of the CSA B149.1 Natural Gas and Propane Installation, and the Canadian Electrical Code, CSA C22.1 Part 1, in the absence of local codes. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... - Page 10 Installing the 45-H Water Heater Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
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Page 11: Location
The installation area should be constructed before using. of fire-retardant materials. The power socket connecting the water heater should be properly grounded. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... - Page 12 Verify all included parts are present (see below). 45H-LP/NG 45HI-LP/NG 8.8.8 45 SERIES MANUAL WHOLE-HOME TANKLESS WATER HEATER INSTALLATION, USE AND CARE INSTRUCTIONS 3/4” Pressure Relief Remote Control Gas Appliance Valve 1 pcs.
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Page 13: Typical Installation
NOTICE! The National Fuel Gas Code (NFGC) mandates a manual gas shut-off valve: See NFGC for complete instructions. Local codes or plumbing authority requirements may vary from the instructions or diagrams provided and take precedent over these instructions. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 14: Water Connections
BTUs in the flex and gas lines be 1” on the water heater rating plate. If high black steel, flex rated at a minimum of or low gas pressures are present, contact 199 BTUs. your gas supplier for correction. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... -
Page 15: Relief Valve
Contact the water supplier or local plumbing inspector on how to correct this situation. Do not plug or stopper the relief valve. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 16: Leak Testing
The factory connections should also be leak tested after the water heater is placed in operation. HIGH ALTITUDE The Eccotemp 45 Series Gas Tankless Water Heater has been tested for use at elevations up to 2000 ft. Installation and use of the Eccotemp 45 Series above 2000 ft. may effect overall efficiency and performance. -
Page 17: Venting
Code requirements are subject to change and may vary by location. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 18: Remote Control
(length is dependent on your requirements), and throw away the other. Then connect the wires of the aviation joint to the inlet wire of the connector, and connect the two remote controls to the outlet wires of connector. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... - Page 19 (see illustration below). 2.4” 2 - Φ 0.24” Base of Control Wall Φ 0.24” Rubber Screw Wood Thread Screw 3. Replace the front cover on the remote control. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC...
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Page 20: Electrical Connection
(A) Proportion Valve - (B) Proportion Valve + Ignition White Device Feedback White Wire Thermostat Heat Exchanger Protection Device Water Valve Temp. Sensor Temp. Sensor of Water Inlet of Water Outlet Water Flow Sensor Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... -
Page 21: Pipe Insulation
DO NOT remove the front cover unless absolutely necessary. This should only be done after being examined by a qualified service technician. DO NOT install this product where standing water may occur. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 22: Mounting
With inlet water temperatures above 32°F, but not exceeding 120°F. • Free of lime and scale deposits. • DO NOT reverse the hot and cold water connections. The water heater will not operate. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... -
Page 23: Installation Checklist
Discharge line protected from freezing. ☐ Electrical Wiring Voltage matches rating plate. ☐ Water heater is properly grounded. ☐ Wiring meets all local codes. ☐ GFCI Protection where required. ☐ Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... - Page 24 Installing the 45-HI Water Heater ON/OFF DOWN Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
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Page 25: Location
• Raising the water heater will reduce, BUT NOT eliminate the possibility of lighting the vapor of any flammable liquids which may be improperly stored or accidentally spilled. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... - Page 26 Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nuisance or hazard or cause property damage; or Where condensate vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
- Page 27 (see below). 45H-LP/NG 45HI-LP/NG 45 SERIES MANUAL WHOLE-HOME TANKLESS WATER HEATER INSTALLATION, USE AND CARE INSTRUCTIONS Whole Home Mid Size Home...
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Page 28: Typical Installation
NOTICE! The National Fuel Gas Code (NFGC) mandates a manual gas shut-off valve: See NFGC for complete instructions. Local codes or plumbing authority requirements may vary from the instructions or diagrams provided and take precedent over these instructions. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... - Page 29 Installation of unions or flexible copper connections are recommended on the HOT and COLD water lines, so that the water heater may disconnect easily for servicing if necessary. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC...
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Page 30: Water Connections
Compound used on the threaded joints of the gas piping must be of the type resistant to the action of LPG. Use compound sparingly and use on male threads only. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... -
Page 31: Relief Valve
(14’w.c.). HIGH ALTITUDE The Eccotemp 45 Series Gas Tankless Water Heater has been tested for use at elevations up to 2000 ft. Installation and use of the Eccotemp 45 Series above 2000 ft. may effect overall efficiency and performance. Installation and use of the Eccotemp 45 Series above 2000 ft. is not recommended. -
Page 32: Venting
Eccotemp also recommends adding a outlined in the Venting backflow preventer to keep freezing The water heater can be vented either section of this manual. - Page 33 Consult with an installation professional for proper installation. 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.
- Page 34 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.
- Page 35 Vertical Clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (61 cm) from the center line of the terminal. Clearance to unventilated soffit. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC...
- Page 36 Notes: • In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code. • In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
- Page 37 Pipe 90° Termination Elbow Termination Part #2SVSTEX0490 Combustible Sheathing Caulk for Weather Seal Termination Box Part #2SVSRTX04 Outside Water Wall Heater Mounting Termination Hood Side View Brackets Part #2SVSHTX04 Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC...
- Page 38 1/4” per foot Downward Slope 6” Clearance 2’ Support Hanger Condensate Trap To Drain, Dispose of Condensate Vent in Accordance to Local Codes Adapter 250 mm 250 mm Typical Horizontal Terination w/ 1/4” per foot DOWNWARD Slope Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
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Page 39: Remote Control
AVOID areas where the remote control(s) may be subjected to oil and/or steam from cooking. ECCOTEMP REMOTE CONTROL – CONNECTION, INSTALLATION AND SET (optional) (For Panel Control/Remote Control and Remote Control Water Heaters) Panel Control/Remote Control and Remote Control Water Heaters will work with either one or two remote controls. - Page 40 (see illustration below). 2.4” 2 - Φ 0.24” Base of Control Wall Φ 0.24” Rubber Screw Wood Thread Screw 3. Replace the front cover on the remote control. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
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Page 41: Electrical Connection
(B) Proportion Valve + Ignition White Device Feedback White Wire Thermostat Heat Exchanger Protection Device Water Valve Temp. Sensor Temp. Sensor of Water Inlet of Water Outlet Water Flow Sensor Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 42: Pipe Insulation
DO NOT block or restrict air intake opening located on the back side of the water heater. DO NOT remove the front cover unless absolutely necessary. This should only be done after being examined by a qualified service technician. DO NOT install this product where standing water may occur. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... -
Page 43: Mounting
*Reference Vent Manufacturer to be sealed by fire-retardant material Component Information - Page 37 or wall thimble, making sure the water Side Installation heater is tight and will not come off. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 44: Intallation Checklist
☐ Pressure Relief Valve properly installed and discharge line run to open drain. ☐ Discharge line protected from freezing. Electrical Wiring ☐ Voltage matches rating plate. ☐ Water heater is properly grounded. ☐ Wiring meets all local codes. ☐ GFCI Protection Where Required. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... -
Page 45: Operating Instructions
1. Turn o all electric power to the appliance if service is to be performed. 2. Turn the Gas Shut-O Valve located on the outside of the unit clockwise to the “OFF” position. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... - Page 46 NOTICE! Flammable vapors can be drawn by air currents from surrounding areas to the • DO NOT allow combustible materials such as water heater. newspaper, rags or mops to accumulate near water heater. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992...
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Page 47: Water Temperature
NOTICE! If the BATH control is turned on, the temperature setting on the MAIN control cannot be changed. The BATH control(s) will always have PRIORITY over the MAIN control. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 48: Care And Cleaning
Water Filter 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 49: Housekeeping
In very cold areas and when the temperature is under 32°F, or in event of and ice storm, freezing will occur as the heating power limit is exceeded. If these conditions take place, please follow the procedures explained below. NOTICE! Eccotemp recommends NOTICE! During power outages NOTICE! When freezing... -
Page 50: Draining
NOTICE! The water heater may not operate unless the above procedure is followed correctly. WARNING! Failure to follow these instructions while draining the water heater can cause serious damage to the water heater as well as personal injury including scalding. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... - Page 51 NOTICE! The water heater may not operate unless the above procedure is followed correctly. WARNING! Failure to follow these instructions while draining the water heater can cause serious damage to the water heater as well as personal injury including scalding. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC...
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Page 52: Troubleshooting
Fan continues to This function is to purge Normal operation. There is no need to call for rotate after hot unburned gas 10-15 service. Check for error code. water faucet is seconds. closed. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... -
Page 53: Error Code Guide
CAUTION! Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON. CAUTION! Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC... -
Page 54: Parts List
NOTICE! The National Fuel Gas Code (NFGC) mandates a manual gas shut-off valve: See NFCG for complete instructions. Local codes or plumbing authority requirements may vary from the instructions or diagrams provided and take precedent over these instructions. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992... - Page 55 Gas Inlet Water Inlet Remote Control Front Cover 8.8.8 Power Cord Control Panel Water Outlet ON/OFF DOWN CAUTION! For your safety, DO NOT attempt repair of electrical wiring, gas. Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992 Designed in Summerville, SC...
- 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 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.
- Page 57 Be sure to check with your home warranty company for assistance prior to reaching out to Eccotemp. PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL AND ALL ECCOTEMP CONTENT IS PLEASE NOTE: 45H IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND 45HI IS FOR INDOOR PERMANENT INSTALLATIONS ONLY.
- Page 58 315-A INDUSTRIAL ROAD, SUMMERVILLE, SC 29483 | 1-866-356-1992 © Eccotemp 2023 All Rights Reserved | Printing Version 3.1...
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