EcoSmart ECOS 27 Element Tankless Electric Water Heater User Manual

EcoSmart ECOS 27 Element Tankless Electric Water Heater

Product Information

Specifications

• Model : 12KW ECOS 12, 18KW ECOS 18, 27KW ECOS 27
• Certifications : cETLus (Intertek) certified to UL499, Water Quality Association tested and certified against NSF/ANSI/CAN 372 for lead-free compliance

Important Safety Information
Before using the tankless electric water heater, please read and follow these safety precautions:

• Always shut off all power to the unit directly at the circuit breaker box before cleaning, installing, inspecting, repairing, disassembling, or servicing the water heater
• Failure to follow this warning could result in serious bodily injury or death
• This product should be installed by a qualified electrician and a qualified plumber in accordance with all national, state, provincial, and local electrical and plumbing codes
• Read the instructions thoroughly and completely prior to installation and use to avoid property damage, serious injury, or death

Product Registration and Warranty
To obtain warranty service, product registration is required. Complete the registration form by scanning the QR Code. Warranty registrations must be submitted within 30 days of receipt and installation of the product. Incomplete registrations will not be accepted. Keep this manual for future reference.

Sizing Guide

kW| Region A| Region B| Region C| Region D| Region E| Region F| Region G| Region H| Region I
---|---|---|---|---|---|---|---|---|---
12| 1.2| 1.3| 1.4| 1.5| 1.7| 1.9| 2.2| 2.5| 2.9
18| 1.8| 2.0| 2.1| 2.3| 2.6| 2.9| 3.2| 3.7| 4.4
27| 2.7| 2.9| 3.2| 3.5| 3.8| 4.3| 4.9| 5.6| 6.6

Inlet Water Temperature and Flow Regulator Selection
Follow these steps to choose a flow regulator based on your geographical location and model:

1. Find your model in the sizing guide table.
2. Choose the column with the inlet water temperature closest to your geographical location.
3. Take the letter matching your zone and model number and match it with the corresponding flow regulator listed.

Safety Instructions for Water Temperature Setting
When setting the water temperature, consider safety and energy conservation. Follow these instructions:

• Read the instruction manual before setting the temperature on the water heater.
• Children, disabled individuals, and the elderly are at the highest risk of being scalded. Always feel the water before bathing or showering.
• Temperature-limiting valves are available. Refer to the manual for more information.
• To protect against injury, install a mixing valve in the water system to reduce the point of discharge temperature by mixing cold and hot water in branch supply lines. Such valves can be obtained from your local plumbing supplier.

Do not destroy this manual. Please read it carefully and keep in a safe place for future reference.

Note : This Use & Care Manual covers EcoSmart® branded tankless electric water heaters.

IMPORTANT SAFETY INFORMATION
READ ALL INSTRUCTIONS BEFORE USING

When installing or using any high voltage electrical appliance, basic safety precautions should always be followed. Under no circumstance should you attempt to clean, install, inspect, repair, disassemble or otherwise service this water heater, without first shutting off all power to the unit directly at the circuit breaker box.

SERIOUS BODILY INJURY OR DEATH COULD OCCUR IF YOU IGNORE THIS WARNING. THIS PRODUCT SHOULD BE INSTALLED BY A QUALIFIED ELECTRICIAN AND A QUALIFIED PLUMBER IN ACCORDANCE WITH ALL NATIONAL, STATE, PROVINCIAL AND LOCAL ELECTRICAL & PLUMBING CODES. PLEASE READ THESE INSTRUCTIONS THOROUGHLY AND COMPLETELY PRIOR TO INSTALLATION & USE. FAILURE TO DO SO COULD CAUSE PROPERTY DAMAGE, SERIOUS INJURY, OR DEATH.

This manual should be given to the homeowner after installation and should be retained for future reference.

Product Registration is required to obtain warranty service. Incomplete Warranty Registrations will not be accepted. Product Warranties are void without receipt of Warranty Registration information within 30 days of receipt and installation of the Product

HOW TO REGISTER YOUR PRODUCT
Warranty requires product registration. To register, complete the registration form by scanning the QR Code. For additional support contact: EcoSmart at 877-474-6473

SIZING GUIDE
Please use the chart below to see how many gallons per minute your tankless water heater can produce with your incoming water temperature. The gallons per minute is calculated assuming 105°F outlet temperature.

37°| 42°| 47°| 52°| 57°| 62°| 67°| 72°| 77°|
---|---|---|---|---|---|---|---|---|---
kW| Region A| Region B| Region C| Region D| Region E| Region F| Region G| Region H| Region I
12| 1.2| 1.3| 1.4| 1.5| 1.7| 1.9| 2.2| 2.5| 2.9
18| 1.8| 2.0| 2.1| 2.3| 2.6| 2.9| 3.2| 3.7| 4.4
27| 2.7| 2.9| 3.2| 3.5| 3.8| 4.3| 4.9| 5.6| 6.6
 | Gallons Per Minute To Achieve 105°F Outlet Temp

FLOW REGULATOR OPTIONAL
To ensure the optimal temperature output and overall performance of your tankless water heater you may require a flow regulator. These flow regulators are installed on the outlet connection of your tankless water heater and limit the maximum volume coming out of your unit to a specified flow rate to prevent the exit temperature from becoming too cool. To learn more about flow regulators or find out how to purchase one for your tankless water heater visit
parts.eemax.com, use the flow regulator part number from the table below.

INLET WATER TEMPERATURE
*Selection based on inlet temperature above and outlet temperature of 105°F

Steps for Choosing a Flow Regulator

1. Find your model in the chart on the right.
2. Choose the column with the inlet water temperature closest to your geographical location.
3. Take the letter matching your zone and model number and match it with the corresponding flow regulator on the right.

Silver

| IFR 1-2

Dark Green

| IFR 1-2

Purple

| IFR 1-2

Purple

18 kW| IFR 3-4

Purple

| IFR 3-4

Purple

| IFR 3-4

Purple

| IFR 3-4

Red

27 kW| IFR 3-4

Purple

| IFR 3-4

Light Green

| IFR 3-4

Black

| IFR 3-4

Black

SAFETY

DANGER!

WATER TEMPERATURE SAFETY SETTING
Safety and energy conservation are factors to be considered when selecting the water temperature setting of the water heater’s thermostat. Water temperatures above 125°F can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below. This label is also located on the water heater near the thermostat access panel.

• Water temperatures over 125 °F can cause severe burns instantly or death from scalds.
• Children, the disabled, and the elderly are at the highest risk of being scalded.
• See the instruction manual before setting the temperature at the water heater.
• Feel water before bathing or showering.
• Temperature-limiting valves are available, see the manual.

Notice : To protect against injury, you should install a mixing valve in the water system. This valve will reduce the point of discharge temperature by mixing cold and hot water in branch supply lines. Such valves are available from your local plumbing supplier.

Table courtesy of Shriners Burn Institute
The chart shown above may be used as a guide in determining the proper water temperature for your home.

DANGER : Households with small children, disabled, or elderly persons may require a 120°F or lower thermostat setting to prevent contact with “HOT” water. The temperature of the water in the heater is regulated by the electronic control on the front of the water heater. To comply with safety regulations, the thermostat was set at 120°F/49°C before the water heater was shipped from the factory.

BEFORE INSTALLATION

PLEASE READ THESE INSTRUCTIONS THOROUGHLY AND COMPLETELY PRIOR TO INSTALLATION & USE. FAILURE TO FOLLOW INSTRUCTIONS COULD CAUSE PROPERTY DAMAGE, SERIOUS PERSONAL INJURY, OR DEATH.

By installing this product, you acknowledge the terms of the manufacturer’s warranty. Once the heater is installed, do not return product to the place of purchase. If you have any questions regarding the warranty or product return policies, please contact:

eco.support@eemax.com

Inspect all components
The contents of your box should include one of the following units:

REQUIRED TOOL LIST:

PRODUCT SPECIFICATIONS

ELECTRICAL
Power (kW)| 12 kW| 18 kW| 27 kW
Voltage (V)| 240V| 240V| 240V
Total Current (Amps)| 50| 75| 112.5
Required Wire Size

(CU) 75ºC (AWG)

| __

8

| __

8

| __

8

Required minimum breaker size

(per NEC-Intermittent Duty)

| __

1×50

| __

2×40

| __

3×40

TEMPERATURE
Temperature Adjustment Range (F)| 60-140| 60-140| 60-140
PLUMBING
Turn-On Flow Rate (GPM)| 0.5| 0.5| 0.5
Inlet & Outlet Fittings| 1/2” NPT| ¾” NPT| ¾” NPT
PRODUCT INFORMATION
Product Height (in)| 16.25| 19| 19
Product Width (in)| 7.25| 9.25| 9.25
Product Depth (in)| 3.5| 4.25| 4.25
Product weight (lb)| 5| 9.3| 10.9

SELECTING AN INSTALL LOCATION

This product is designed to be installed indoors only. You may install your unit in an outdoor lo-cation so long as it is mounted in a suitable enclosure that protects it from rain, splashed water, direct sunlight, debris, and insects.

• DO NOT install this product in a location where it may be subjected to freezing temperatures. If the water inside your tankless water heater freezes, it can cause severe and permanent damage that is not covered under your warranty.
• DO NOT locate the water heater in a location that is difficult to access.
  • Make sure that the water heater and hot water outlet pipe are out of reach of children, so they are unable to tamper with the temperature controls or injure themselves by touching the hot water outlet pipe.
  • The outlet water pipe can get very hot. This product does NOT require venting.
  • Avoid installing your tankless water heater in a location prone to excessive humidity, moisture, or dust, or in an area where it may be splashed with water or other liquids.
• DO NOT install underwater pipes or air conditioning lines that might leak or condense moisture that could then drip onto the heater.
• DO NOT install the above electrical boxes or junctions.

CAUTION : The water heater should not be located in an area where leakage will result in damage to the area adjacent to it or to lower floors of the structure. Where such areas cannot be avoided, it is recommended that a suitable catch pan, adequately drained, be installed under the water heater.

MOUNTING YOUR WATER HEATER
Your tankless water heater should be secured to the mounting surface with 4 screws (minimum 1-inch long) using the built-in mounting brackets on each side of the heater. Make sure that the mounting surface is solid and secure and ensure that the unit is level prior to securing the screws. For ease of installation and servicing, we recommend that this product be installed in an upright position with the inlet and outlet water connections at the bottom of the unit.

Required Clearances:

12kW – 7 inches top and bottom
18kW – 12 inches top only
27kW – 14 inches top only
CAUTION: Combustible materials should be kept at least 24 inches away from your water heater and the hot water outlet pipe.

PLUMBING INSTALLATION
Please follow all plumbing instructions carefully. We recommend that this product be installed by a licensed and qualified plumber in accordance with all applicable national, state, provincial, and local plumbing codes.

INSTALLATION INSTRUCTIONS

• STEP 1:
  Make sure the inlet filter screen is present in the inlet fitting and the inlet and outlet pipes are correctly aligned with the heater connections to minimize stress on the heater.
  CAUTION : Do not over-tighten plastic fittings.

• STEP 2:
  Connect the plumbing to your water heater. The rule of thumb for installing tapered threaded fittings is finger tight plus 1/2 to 1 turn with a wrench. Do not tighten more than 2 turns past finger tight. Use 1 1/2 turns of Teflon tape going clockwise around the thread, leaving the first 2 threads un-covered to avoid contaminating the water flow into the heater.

• STEP 3:
  Fully open the inlet and outlet ball valves. Test with flow and without. Check the system for water leaks at all plumbing connections. If a leak is present at the NPT threads, slowly tighten the female NPT fitting up to 2 turns past finger tight. If still leaking, remove female NPT to check for damage or contamination. Replace Teflon tape before threading NPT back on.

1. Do not solder any pipes with unit connected to pipes – heat from soldering may damage the flow sensor. Doing so will void the warranty.
2. This automatic tankless water heater is equipped with both computer-controlled and electro- mechanical auto resetting thermostat switches for high-limited temperature protection. Since this product does not use a storage tank, the use of a temperature pressure relief valve (T&P) is not required for most installations. UL Standard 499 does NOT require that a pressure relief valve be used. However, a T&P valve may be required to meet installation codes in your area. If one is required, install the pressure relief valve in accordance with local codes and ensure that it operates correctly and that air is purged from the valve prior to installing the water heater. When connecting to Flex or High Temperature CPVC pipe, we recommend that a T&P valve be used for added safety. Please note: Installations in the Commonwealth of Massachu-setts and State of Kentucky require a pressure relief valve. Please check your local installation codes for any special requirements.
3. The maximum operating water pressure is 150 PSI. If the water pressure is higher, a pressure reducing valve must be installed on the main incoming water supply line prior to installing the electric tankless water heater.
4. Flexible water heater hoses are recommended to be used with your water heater as part of the installation. When connecting the inlet water pipe to the unit, make sure to use a wrench to hold the unit’s connection, and another wrench to tighten, so that the flow sensor on the unit will not be loosened or damaged. Serious internal damage to the water heater can occur if the inlet or outlet connections are over tightened or if solder connections were made.
5. We recommend that a manual shut-off valve (ball valve) is installed on the inlet and outlet of the water heater so that there is a convenient shut-off point available in the event that future maintenance or servicing is required. It is extremely important to flush the lines to eliminate all plumbing paste or residue in the lines caused by any welding or soldering before connecting pipes to the water heater.  

PLUMBING REQUIREMENTS:

Minimum turn on flow rate 0.5 GPM
Minimum working pressure 30-150 PSI
Optimal operating pressure 35-80 PSI
Boiler drains (may be beneficial)
Use ½” and ¾” NPT fittings for install

12kW units have ½” fittings
18kW & 27kW units have ¾” fittings

ELECTRICAL REQUIREMENTS

Model

|

Voltage

|

kW

|

Total Amps

|

Required Wire Size (CU) 75° C

|

Required minimum breaker size (per NEC – Intermittent Duty)

---|---|---|---|---|---
12 kW| 240| 12| 50| 8 AWG| 1×50
18 kW| 240| 18| 75| 8 AWG| 2×40
27 kW| 240| 27| 112.5| 8 AWG| 3×40

A ground terminal (or a wire connector marked “G”, “GR”, “Ground”, or “GROUNDING”) is provided within the enclosure. To reduce the risk of electric shock, connect this terminal or connector to the grounding terminal of the electric service or supply panel with a continuous copper wire in accordance with your local electrical code.

WIRING DIAGRAM

ELECTRICAL INSTALLATION

Manufacturer recommends that this product be installed by a licensed and qualified electri-cian in accordance with all applicable national, state, provincial, and local electrical codes. As with all electrical appliances, under no circum-stances should you attempt to install, repair or disassemble this water heater without first shutting off all power to the unit directly at the fuse or breaker box. Make sure to shut off all breakers.

SERIOUS BODILY INJURY OR DEATH COULD OCCUR IF YOU IGNORE THIS WARNING.

All wiring (wire gauge) and circuit protection (breakers) must comply with the U.S. National Electrical Code (NEC) in the USA, or the Canadian Electrical Code (CEC) in Canada. Failure to do so could result in property damage and/or personal injury, and void your warranty.

Note : The Canadian Electrical Code generally requires that all supply wires and corresponding circuit protection used for domestic hot water heating and hydronic heating applications be sized to a minimum of 125% of the maximum current rating of the heater (see model specifications below for details). Before installing this product, ensure that the home has sufficient electrical power available to handle the maximum amperage load of the applicable model.

IMPORTANT NOTES:

• Model 12 kW requires 1 set of wire and ground (see wiring diagram)
• Model 18 kW requires 2 sets of wire and ground (see wiring diagram)
• Model 27 kW require 3 sets of wire and ground (see wiring diagram)

Please see electrical specifications by model and wiring diagram on the next page for additional electrical information. Each set of wires must be connected to its own individual double pole breaker.

INSTALLATION INSTRUCTIONS

• STEP 1: Take each wire pair and connect them to one breaker (see wiring diagram). Make sure that each breaker is connected with one black wire and one red wire
• STEP 2: Using a suitable wire gauge that meets all applicable electrical codes for the size of the breakers used, run the correct sets of wire from the home’s main breaker panel to the tankless water heater.
• STEP 3: A separate ground conductor for each incoming circuit is required.
• STEP 4: DOUBLE-CHECK the electrical connections to make sure they are correct and that all wire connections are tight and secure. Also confirm that the correct breaker size and wire gauge has been used and confirm that the unit has been connected to a ground in accordance with applicable codes.
• STEP 5: Confirm that all the air has been purged from the water lines prior to turning on power to the unit. Refer to STEP 2 in the plumbing installation section.

CAUTION : Ensure that you have made the correct connections. You must follow the wire connection as shown to ensure proper operation of the unit. If you mix up one set of wires with another, the unit will not operate correctly even though it turns on and otherwise appears to function properly.

The water heater is now installed and ready to use! Follow the General Operating Instructions to complete the setup. We highly recommend that this is done with the homeowner present.

GENERAL OPERATING INSTRUCTIONS

Operating your new tankless water heater is similar to using any traditional water heating system. However, it is very important that you carefully read all of the setup procedures and operating instructions and tips to ensure the maximum performance and energy savings from your new water heater. We recommend that all members of the household read these General Operating Instructions.

How your new water heater works:
Your tankless water heater does not store hot water like a traditional tank- type water heater. It contains high powered heating elements that are capable of heating water on-demand. As soon as you turn on a hot water faucet, a sophisticated flow sensor recognizes that you have turned on the water. This sensor measures flow rate while another sensor measures the incoming water temperature. This information is transmitted continually to the computer logic controls which decide how much power to send to the heating elements to heat the water to your desired temperature. Once the water faucet is turned off your water heater will turn off as well.

USER INTERFACE

CAUTION : Removing the cover to change the temperature set point exposes electrical shock and burn hazards, which can cause INJURY or DEATH. Adjustment should only be done by a licensed plumber or electrician.

DANGER : Hotter water increases the potential for Hot Water SCALDS.

CAUTION
BEFORE SWITCHING THE ELECTRICAL BREAKER “ON”, VERIFY THE INLET AND OUTLET BALL VALVES ARE FULLY OPEN AND WATER IS FLOWING THROUGH THE HOT WATER FAUCET FOR A MINUTE OR TWO UNTIL THE FLOW IS CONTINUOUS AND FREE FROM AIR POCKETS. DO NOT SWITCH THE BREAKER “ON” IF THERE IS A POSSIBILITY THE WATER IN THE HEATER IS FROZEN.

COMMISSION HEATER
Upon power on, the software revision screen is displayed, then the power selection screen (12, 18, 27 kW). The next screen represents the SAFE title, then “-1.5”G is displayed. This is a counter that represents the volume of water in gallons remaining to pass through the unit before the unit is considered commissioned. At this point, water needs to be turned on. After the counter reaches “0.0”, the temperature setpoint screen is displayed. At this point, the unit is commissioned and will heat water upon demand.

Temperature adjustable range : 60 °F – 140 °F

CHANGING SETPOINT TEMPERATURE

• To INCREASE temperature, tap the “+” button repeatedly, or hold the “+” down to INCREASE the temperature quickly.
• To DECREASE temperature, tap the “” button repeatedly, or hold the “” down to DECREASE the temperature quickly.
• Hold “ ” pressed for 3 seconds to access the Settings menu.
• To return to home screen press “ ” and hold for 3 seconds (will automatically return to home screen after 60 seconds of inactivity).

INITIAL STARTUP SCREEN FLOW

MAINTENANCE

To ensure maximum performance of your water heater and to reduce the risk of a water leak, we recommend the following maintenance:

Inspect the connections on the inlet and outlet of the water heater at least on an annual basis for any signs of damage or failure. Any signs of damage, cracks, leakage or weakness should be addressed. Take care not to over tighten the connections. Serious internal damage to your water heater can occur if you over-tighten the water heater connections at the unit.

IMPORTANT NOTES:
As with all electrical appliances, under no circumstances should you attempt to install, repair or disas-semble this water heater without first shutting off all power to the unit directly at the fuse or breaker box.

SERIOUS BODILY INJURY OR DEATH COULD OCCUR IF YOU IGNORE THIS WARNING.

When any maintenance is performed on the water heater or the home’s plumbing system that may introduce air into the plumbing pipes, it is important to turn the power off to the water heater and purge the air out of the lines before allowing the unit to power up.

FAILURE TO DO SO COULD CAUSE PER-MANENT DAMAGE TO THE HEATING ELEMENT AND VOID YOUR WARRANTY.

If you have a water supply with a high level of mineralization (hard water), you should increase the frequency of your maintenance.

FLUSHING THE WATER HEATER
Flushing the heat exchanger is a complicated procedure that should only be performed by a qualified service technician.

NOTE:
Improper maintenance WILL VOID water heater warranty.

1. Disconnect electrical power to the water heater.
2. Close the shutoff valves on both hot water outlet and cold water inlet lines (V1 and V2). See Figure 1.
3. Connect one hose (D1, Figure 1) to the valve (V3) and place the free end in a bucket. Connect one of the hoses (D3) to the circulation pump outlet and the cold water inlet line to valve V4. Connect the other hose (D2) to the circulation pump inlet and place the free end in the bucket.
4. Pour tankless water heater cleaning solution into the bucket. Ensure the cleaning solution is approved for potable water systems. Place the drain hose (D1) and hose D2 to the pump inlet in the cleaning solution.
5. Open service valves (V3 and V4) on the hot water outlet and cold water inlet lines.
6. Turn on the circulation pump. Operate the pump and allow the cleaning solution to circulate through the water heater for at least 1 hour at a rate of 4 gallons per minute. This will remove any possible harmful scale deposits.
7. Rinse the cleaning solution from the combination water heater as follows:
   • Remove the free end of drain hose D1 from the bucket.
   • Close service valve V4 and open shutoff valve V2.
   • Do not open shutoff valve V1.
   • Allow water to flow through the water heater for 5 minutes.
   • Close shutoff valve V2.
8. Disconnect all hoses.
9. Remove the cold water inlet filter from the water heater and clean out any residues.
10. Reinsert the filter and ensure the filter cap is securely tightened.
11. Open a hot water faucet. Run the water heater continuously for five minutes to ensure all cleaning solution is purged from the system. Check for leaks and ensure the water heater is operating properly.
12. Connect electrical power to the water heater.

TROUBLESHOOTING GUIDE

Please call or email our customer experience and technical support team for any help you may need.

eco.support@eemax.com

The following table represents some of the most common technical support questions.

The water heater is not heating at all (water is flowing but the unit is not heating – the outgoing water temperature is the same as the cold water supply) – the digital display does NOT light up.| __

No power or incor- rect wiring.

| __

Make sure the breakers at main electrical panel are ON. You may have a faulty breaker or unit may be wired incorrectly.

---|---|---
Flow rate is too low

/ water pressure is too low.

| Your water heater has an activation flow rate of approximately 0.5 GPM. If your water flow rate is less than this level, your unit will not activate. Increase the flow rate.
The water heater is not heating at all (water is flowing but the unit is not heating – the outgoing water temperature is the same as the cold water supply) The digital display DOES light up.| __

__

Internal part failure.

| __

__

Please call us for technical assistance.

__

__

__

__

__

__

__

Water heater is

heating, but the water tem- perature is not hot enough.

| The user’s temperature setting is too low.| Turn up the temperature setting on the unit.
__

Flow rate is too high

| Depending on your incoming water temperature and the power output of your model, your water flow rate may exceed the physical heating capacity of your water heater. Reduce the flow rate by installing an EcoSmart Flow Regulator. Use the chart in section 6 to find out which flow regulator works best for your particular model.
Crossed wires.| If it’s a new installation, have your electrician double check the wiring. Is possible that the wiring is incorrect.
Voltage less than 240 volts.| The heating elements on your water heater are design for 240 volts. When used with a lower voltage, they produce less heating power. You may need to upgrade to a larger model.
__

Mixing too much cold water.

| You do not need to mix as much cold water with your tankless water heater compared to when you use a conventional water heater. You may also have an anti-scald feature on your faucet that is mixing cold water. These types of faucets can usually be adjusted to reduce the amount of cold water mixed.
__

__

__

__

__

The water temperature

at the faucet is less than the temperature setting

of my water heater

| __

__

Voltage less than 208 volts.

| The computer chips in your tankless water heater are programmed with the expectation that your incoming line voltage is 240 volts. If you have less than 240 volts, it may affect the reading on your water heater’s digital display and cause it to read slightly higher than the actual output tempera- ture. To compensate for this, increase the setting on your water heater if you need / want hotter water.
__

Anti-Scald pressure/ balancing valve or tempering valve.

| Your faucet may have an anti-scald feature or a tempering valve that automat- ically mixes cold water even when you turn your control lever or handle to full hot. These devices are usually adjustable so you can turn off the cold mix completely. You can compensate for this by increasing the setting on your water heater if you need/want hotter water.
__

Thermal loss due to long pipe run

| As the hot water from the heater runs through the hot water delivery system to your faucet, some heat will be lost especially if it has long distance to travel or the pipes are cold. This is normal. You can compensate for this by increasing the setting on your water heater if you need/want hotter water.

ERROR CODES

DISPLAYED NOTIFICATION MESSAGE| __

DESCRIPTION

| __

CAUSE

| __

UNIT BEHAVIOR

---|---|---|---
__

A70

| Outlet Temperature too high| Outlet temperature is > (setpoint + 20°F)| Unit turns off power to the heating element until outlet temperature is less than setpoint. This notification is disabled if c05 or b10 notifications are present
A74| Intel or outlet tempera- ture below freezing| Inlet or outlet temperature

< 35°F

| Unit turns off power to the heating element until both inlet and outlet temperature > 35°F
b00| Inlet thermistor disconnected| Inlet temperature < 0°F| Unit keeps heating with assumed 65°F inlet temperature
b10| Both thermistors disconnected| Inlet and outlet temperature < 0°F| Unit keeps heating with assumed 65°F inlet

temperature, flow and latest self-calibration

c05| Outlet thermistor Disconnected| Outlet temperature < 0°F| Unit keeps heating with assumed 65°F inlet

temperature, flow and latest self-calibration

d85| Flow too high, inlet temperature too low| Power demand > 100% or unit capacity| Unit continues to operate, however set temperature will not be reached

SPARE PARTS

EX78033-01
4| Outlet manifold w/ sensors sub-assembly for 18/27kW| EX78034-01
5| Gaskets pack for 12kW| EX78035-00
6| Gaskets pack for 18/27 kW| EX78035-01
7| Heat Element replacement kit for 12kW| EX78038-00
8| Heat Element replacement kit for 18kW| EX78038-01
9| Heat Element replacement kit for 27kW| EX78038-02
10| Thermistors kit for 12kW| EX78039-00
11| Thermistors kit for 18/27kW| EX78039-01
12| Flowmeter & sensor replacement kit for 12kW| EX78040-00
13| Flowmeter & sensor replacement kit for 18/27kW| EX78040-01
14| Kit for 12kW| EX78041-00
15| Kit for 18kW| EX78041-01
16| Kit for 27kW| EX78041-02
17| Triac Kit with yellow plug wiring for 12kW| EX08001-03A
18| Triac Kit with red plug wiring for 12kW| EX08001-03B
19| Triac kit with yellow plug & wiring for 18kW| EX08001-04A
20| Triac kit with red plug & wiring for 18kW| EX08001-04B
21| Triac kit with yellow plug & wiring for 27kW| EX08001-05A
22| Triac kit with red plug & wiring for 27kW| EX08001-05B
23| Triac kit with blue plug & wiring for 27kW| EX08001-05C
24| Spare PCBA for 12kW| EX09100-350
25| Spare PCBA for 18kW| EX09100-356
26| Spare PCBA for 27kW| EX09100-357
27| Transformer for 12 kW| EX08209-03
28| Transformer for 18/27kW| EX08209-04

LIMITED WARRANTY INFORMATION

TANKLESS ELECTRIC WATER HEATERS

Subject to the terms and conditions set forth in this limited warranty, each Tankless Water Heater is warranted to the original owner (“Owner”) against mechanical or electrical failure of any component solely due to defects in materials or Manufacturer’s workmanship for a period of one year from the date of original purchase and (ii) leaks solely due to defects in materials or Manufacturer’s workmanship for the later of (x) five years from the date of original purchase or (y) the date of Owner’s occupancy of a new dwelling in which the Tankless Water Heater is installed. However, if Owner cannot document the original date of purchase with the original sales receipt, then the limited warranty period begins on the date the Tankless Water Heater was manufactured. As Owner’s sole and exclusive remedy, Manufacturer shall, at Manufacturer’s sole election, either repair or replace the Tankless Water Heater or the defective portion of such product. Manufacturer is not liable for any costs incurred by Owner, including, without limitation, the cost of any labor. Manufacturer’s maximum liability is limited to the value of the water heater. This limited warranty shall be governed by the laws of the United States.

THE LIMITED WARRANTY SHALL BE THE EXCLUSIVE WARRANTY MADE BY MANUFACTURER AND IS MADE IN LIEU OF ALL OTHER WARRANTIES, STATUTORY, EXPRESSED OR IMPLIED (WHETHER WRITTEN OR ORAL), INCLUDING, BUT NOT LIMITED TO, WARRANTIES OR MERCHANTABILITIES AND FITNESS FOR A PARTICULAR PURPOSE. MANUFACTURER EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AS WELL AS ALL OTHER EXPRESS OR IMPLIED WARRANTIES NOT EXPRESSLY PROVIDED HEREIN. OWNER’S SOLE AND EXCLUSIVE REMEDY IS PRODUCT REPAIR OR REPLACED, AS PROVIDED IN THIS LIMITED WARRANTY, AND ALL OTHER CLAIMS FOR DAMAGES ARE EXPRESSLY EXCLUDED. **** THE REMEDIES SET FORTH IN THIS LIMITED WARRANTY ARE THE ONLY REMEDIES AVAILABLE TO OWNER OR ANY PERSON FOR BREACH OF ANY COVENANT, DUTY OR OBLIGATION ON THE PART OF MANUFACTURER. MANUFACTURER IS NOT LIABLE TO OWNER OR ANY THIRD PARTY FOR ANY LOSS, PERSONAL INJURY OR PROPERTY DAMAGE, DIRECTLY OR INDIRECTLY, ARISING FROM THE TANKLESS WATER HEATER. UNDER NO CIRCUMSTANCES IS MANUFACTURER LIABLE TO OWNER OR ANY THIRD PARTY FOR INCIDENTAL, CONSEQUENTIAL, SPECIAL, CONTINGENT, OR PUNITIVE DAMAGES OF ANY DESCRIPTION, WHETHER ANY SUCH CLAIM BE BASED UPON WARRANTY, CONTRACT, NEGLIGENCE, STRICT LIABILITY, OR OTHER TORT, OR OTHERWISE.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to Owner. In such cases, the warranty shall be limited to one year from the original date of purchase or date of manufacture, as provided in this limited warranty, or the shortest period allowed by law. This warranty gives Owner specific legal rights and Owner may also have other rights which may vary from state to state.

EXCLUSIONS OF COVERAGE FROM THIS LIMITED WARRANTY

LIMITED WARRANTY

1. Manufacturer is not liable for any water damage or other damages arising, directly or indirectly, from any defect in the Tankless Water Heater component part(s) or from its use.
2. Manufacturer is not liable under this limited warranty or otherwise if:
   • The water heater or any of its component parts have been subject to misuse, abuse, alteration, neglect or accident; or
   • The rating plate(s) or serial number(s) are altered or removed; or
   • The water heater has not been installed in accordance with the applicable local plumbing and/or building code(s) and/or regulation(s); or
   • The water heater has not been installed or maintained in accordance with Manufacturer’s printed instructions, or installed with improper orientation, improper fastening, improper use of pipe dope/ plumbers putty or with the use of any non-Manufacturer-approved sealant; or
   • The water heater has not been continuously supplied with potable water or the water’s inlet temperature is above Manufacturer’s recommended maximum temperature; or
   • The water heater experiences any water pressure or flow interruptions, normal inlet water pressure is outside of the published specification for the heater; is exposed to any condition that causes the heater to turn on before the air is purged from the heater, also known as a dry fire; or
   • The water heater has been exposed to conditions resulting from floods, earthquakes, winds, fire, freezing, lightning, or circumstances beyond the Manufacturer’s control; or
   • The water heater has been removed from its original installation location; or
   • The water heater has been used for other than the intended purpose.
3. Owner, and not Manufacturer or its agent/ representative, is liable for and shall pay for all field charges for labor or other expenses incurred in the removal and/or repair of the water heater or any expense incurred by Owner in order to repair the water heater.

Subject to the terms and conditions set forth in this limited warranty, if the Tankless Water Heater fails or leaks because of defects in materials or Manufacturer’s workmanship during the applicable warranty period set forth above, Owner should contact Manufacturer for a Returned Merchandise Authorization (RMA). No returns will be accepted by Manufacturer without an RMA number and Manufacturer assumes no responsibility for a water heater returned without an RMA number. Water heaters should be wrapped and packaged securely to avoid shipping damage. All shipments of parts from the Manufacturer to the Owner to replace defective components shall be made via normal ground transportation. If expedited shipment is required, it will be provided at Owner’s additional cost.

Manufacturer’s National Service Department | 400 Captain Neville Dr. Waterbury, CT 06705 EcoSmart 877-474-6473

Product Owners hip Registration

Benefits of Registration
Registering your product will allow us to contact you in the unlikely event a safety notification is required. Filling out this form will help you obtain more efficient warranty service. Confirmation of Ownership. In case of an insurance loss such as fire, flood, or theft, this could serve as your proof of purchase.

Warranty requires product registration.
To register complete the registration form by scanning the QR Code. For additional support, contact: EcoSmart at 877-474-6473 Provide an email address to receive special offers and important communications from EcoSmart®. EcoSmart® will not sell your information.

Attn : Warranty Registration Dept. Manufacturer’s National Service Department 400 Captain Neville Drive Waterbury, CT 06705

FAQ’s

How should I clean the water heater?

When cleaning the water heater, always remember to shut off all power to the unit directly at the circuit breaker box before proceeding. Follow the cleaning instructions provided in the manual.

Can I install the water heater myself?

No, this product should be installed by a qualified electrician and a qualified plumber in accordance with all national, state, provincial, and local electrical and plumbing codes.

How do I obtain warranty service?

Product registration is required to obtain warranty service. Complete the registration form by scanning the QR Code. Warranty registrations must be submitted within 30 days of receipt and installation of the product.

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