SuperGreen IR-30 User manual

OPERATION & INSTALLATION MANUAL
IR-30, IR-234, IR-245, IR-260, IR-288, IR-14K220, IR-18K220
Electric Tankless Hot Water Heater

Table of Contents
SAFETY INFORMATION............................................................................................1
INTRODUCTION.......................................................................................................2
Unit Operation ........................................................................................................2
Unit Freezing ..........................................................................................................2
Maintenance ...........................................................................................................2
Included Parts List...................................................................................................2
INTERFACE..............................................................................................................3
IR-30, IR-234, IR-245, IR-260, IR-288 ......................................................................3
IR-14K220, IR-18K220.............................................................................................4
MOUNTING YOUR WATER HEATER...........................................................................5
ELECTRICAL INSTALLATION....................................................................................7
IR-30 Wiring Diagram..............................................................................................8
IR-234, IR-245, IR-260, and IR-288 Wiring Diagram ...................................................8
14K220 and 18K220 Wiring Diagram .........................................................................9
HOW TO CALIBRATE..............................................................................................10
TROUBLE SHOOTING.............................................................................................11
WARRANTY ...........................................................................................................12

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Thank you for choosing SuperGreen products. The most advanced tankless water heaters in
the world today using quartz technology and true modulation. All of our products are made
with the highest grade materials and professionally assembled.
We strive to satisfy each customer with our unit’s superior quality, longevity, and the
modern design of all our products.
Before use of the unit, please carefully read and understand the manual.
It contains important information regarding the correct use and care of the unit.
SAFETY INFORMATION
IT IS IMPORTANT TO COMPLETELY READ AND UNDERSTAND THE INSTALLATION
PROCEDURES BEFORE CONTINUING THE INSTALLATION.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE,
SERIOUS BODILY INJURY, OR DEATH.
THIS PRODUCT SHOULD BE INSTALLED BY A LICENSED ELECTRICIAN AND
PLUMBER IN ACCORDANCE WITH ALL NATIONAL, STATE, AND LOCAL ELECTRICAL
& PLUMBING CODES.
Keep this manual in a convenient place for future reference.
DANGER! WATER TEMPERATURE SAFETY
SETTING
Safety is our primary goal when selecting
the water temperature. Any temperature
above 120°F can cause serious scalding or
death. Energy conservation is a factor to
be considered when selecting the water
temperature. Setting the water heater’s
thermostat to a lower setting will allow a
higher flow rate and use less energy.
Check our website,
www.supergreenusa.com for the
latest version of the Installation &
User Manual.

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INTRODUCTION
SuperGreen Tankless hot water heaters do not store water like a conventional tank-type
water heater. It contains multiple high powered quartz heating tube elements that are
capable of heating water “on-demand” and continuously as needed, so you will never have
to worry about running out of hot water again.
The unit’s working principle and designs are simple. When the power is turned on, the
microprocessor will check the temperature sensor and current leakage sensor, if there are
no errors, the hot water generator is ready to work.
The performance of the products listed are dependent on incoming water temp, water flow
rate, and set temperature of the thermostat. In order for it to function properly it must be
matched by location, application, and unit size. As it requires no venting, all units can be
installed literally anywhere that is convenient for the owner.
This product should be installed indoors only. An outdoor installation is permitted as long as
it is mounted in a suitable enclosure that protects it from all-weather elements including
freezing. Freezing of the unit may result in permanent damage and will void the warranty.
Unit Operation:
When you open the hot water valve, the flow sensor activates at a minimum water flow. The
flow sensor sends the information to the temperature controller to begin modulating the
heating elements to heat the water as it passes through the quartz heating tubes and to
maximize efficiency.
If the water flow rate exceeds the maximum heating capacity of the unit, the unit will reach
a maximum achievable temperature based on flow rate and unit size. When a reduction in
the excessive flow rate is made, the unit will achieve the set point temperature.
When the fixture is closed, the demand stops, the flow sensor sends information to the
controller to turn off the power to the quartz heating elements. The unit remains in it
standby mode until the demand for the hot water is needed.
Unit Freezing:
In case of freezing, please wait for the complete defrosting of the unit before using. Verify
this by running water through it before turning on the power. Activating unit while still
frozen will damage the heaters internal components and void the warranty.
Maintenance:
This unit requires no maintenance. To extend unit service life, it is recommended to use an
inlet pre filter, check and clean it periodically. This is an additional part from the internal
screen included with the unit. Do not attempt to open the case to make adjustments,
repairs, or for any reason. Opening of unit will void all warranties and could result in serious
injury or property damage.
Included Parts List:
•Electric water heater
•Water (adjust) valve
•Wall Mount bracket
•Screws
•Internal screen

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INTERFACE
When you open the hot water valve, the flow sensor activates at a minimum
water flow. The flow sensor sends the information to the temperature
controller to begin modulating the heating elements to heat the water as it
passes through the quartz heating tubes and to maximize efficiency.
If the water flow rate exceeds the maximum heating capacity of the unit, the
unit will reach a maximum achievable temperature based on flow rate and
unit size. When a reduction in the excessive flow rate is made, the unit will
achieve the set point temperature.
When the fixture is closed, the demand stops, the flow sensor sends
information to the controller to turn off the power to the quartz heating
elements. The unit remains in it standby mode until the demand for the hot
water is needed.
IR-30, IR-234, IR-245, IR-260, IR-288

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IR-14K220, IR-18K220
Power On/Off
Increase Temperature
Decrease Temperature
Power
connection

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MOUNTING YOUR WATER HEATER
1. Affix mounting plate to wall. Mark holes with pencil.
2. Drill screw holes.
3. Install plastic inserts into holes for appropriate fastening.
4. Mount the back panel to wall using supplied screws.
5. Install unit on mounting bracket and fix with 4 screw.

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PLUMBING INSTALLATION
CAUTION: Breaker must remain off until installation is complete.
Step 1: Flush cold water line to clear any debris before connecting to unit.
Step 2: Install a shut off valve and pre filter (Not Supplied) to prevent any particles entering
the unit that may clog or damage the internal parts.
Step 3: Using flexible lines only, connect the Cold Water line to the water heater inlet
labeled with a blue ring. Connect furnished Water Valve to the water heater outlet labeled
with a red ring. Connect the HOT WATER outlet line to the Water Valve. DO NOT Solder any
fittings to unit. This will damage internal sensors and components and void the warranty.
Use flexible lines and screw fittings only to unit. A TP valve is not required in most
jurisdictions. Verify your local codes accordingly and if required install on outlet side only.
Step 4: Verify all fittings are tight and secure. Open hot water source and allow water to run
though the water heater for at least 1 to 2 minutes. This will purge the air from the water
lines and must be performed prior to turning on the power at the unit. This is a Mandatory
step to prevent Damage to Heating Elements.
Verify all connections are free of leaks.
Model Maximum Flow Rate Connection Size
IR-30
1.0 GPM
1/2" NPST
IR-234
1.0 GPM
1/2" NPST
IR-245
1.5 GPM
1/2" NPST
IR-260
3.0 GPM
1/2" NPST
IR-288
3.0 GPM
1/2" NPST
IR-14K220
3.6 GPM
1/2" NPST
IR-18K220
4.0 GPM
3/4" NPT

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ELECTRICAL INSTALLATION
CAUTION: Breaker must remain off until installation is complete.
SERIOUS BODILY INJURY
OR DEATH COULD OCCUR IF YOU IGNORE THIS WARNING.
SuperGreen products must be installed by a licensed and qualified electrician in accordance
with all applicable national, state, and local electrical codes depending on country.
Before installing this product, ensure that the home has sufficient electrical power available
to handle the maximum amperage load of the applicable model.
Specifications by Model
MODEL
NUMBER
MAX
KW
VOLTS
MINIMUM
BREAKER
MAX POWER
(AMP)
MINIMUM
WIRE
IR-30
3.4
120
30 AMP Single Pole
29
1 x 10 AWG
IR-234
3.4
240
20 AMP 2 Pole
15
2 x 12 AWG
IR-245
4.5
240
20 AMP 2 Pole
19
2 x 12 AWG
IR-260
6.0
240
30 AMP 2 Pole
25
2 x 10 AWG
IR-288
8.8
240
40 AMP 2 Pole
37
2 x 10 AWG
IR-14K220
14.0
240
60 AMP 2 Pole
59
2 x 6 AWG
IR-18K220
18.0
240
80 AMP 2 Pole
75
2 x 4 AWG
Step 1: Remove cover of the water heater carefully and locate the electrical supply on the
top right hand corner facing the unit.
Step 2: Use the correct wire gauge that meets all NEC or country of installation guidelines
based on the size of the breakers used and the length of the run. Then run the set of wires
from the home’s main panel to the tankless water heater. A separate ground conductor is
required. (See above chart for minimum wire size) This minimum wire size is based on
maximum of 50’ of length.
Step 3: Connect the wires to one two pole breaker (see wiring diagram). Use a green wire
for the ground ONLY.
Step 4: Verify all connections are tight and secure. Verify the correct breaker size. Verify
the ground conductor size and connection with applicable codes.
IR-30, IR-234, IR-245, IR-260, IR-288, IR14k220, and IR18k220 Wiring Diagram:
(Pictured Requirement is for EXAMPLE only) Verify all requirements with each
unit.

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IR-30 Wiring Diagram:
IR-234, IR-245, IR-260, and IR-288 Wiring Diagram:
USA
EUROPE/ASIA
GROUND
Green
Green/Yellow
Stripe
HOT
Black
Brown
NEUTRAL
White
Blue

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14K220 and 18K220 Wiring Diagram:

Page | 10
How to calibrate your hot water using water valve
1. Make sure all electrical wires and water pipes are properly installed. Check the power
requirement for each model. Before start up, check that all connections are secure and
fittings are tight. Confirm that all air has been purged from the system.
2. With the water running, use the lower heating mode button to turn on the unit and turn
to maximum mode (or set temp). The water begins to heat and the current temperature is
shown in the display. Dial the Gate Valve on the Hot Side Only to calibrate your hot water
vs the flow rate. Ideally, you will gain a higher flow rate by lowering the set temp as water
moves through the water heaters quartz elements faster. If hotter water is required, simply
raise the set temp and slow the water flow rate to meet your temperature needs.
3. Calibrate using Gate Valve (water valve) at hot outlet and choose a desirable
temperature by pressing the mode buttons and adjusting the gate valve until you have a
comfortable water temperature and flow rate. Never use the cold inlet valve to adjust flow.
This will restrict water from flowing in and cause damage to the heating elements.
4. Turn off water and unit is set.
SIZING GUIDE
MODEL
NUMBER
MAX
KW
35 F
45 F
55 F
65 F
75 F
IR-30
3.4
-
0.50
0.60
0.70
0.90
IR-234
3.4
-
0.50
0.60
0.70
0.90
IR-245
4.5
-
0.60
0.70
0.90
1.20
IR-260
6.0
0.50
0.80
1.00
1.20
1.50
IR-288
8.8
1.00
1.30
1.50
1.70
2.30
IR-14K220
14.0
1.50
2.00
2.30
2.60
3.30
IR-18K220
18.0
2.00
2.50
3.00
3.40
4.30
GALLONS PER MIN OUTPUT BASED ON WATER TEMP.

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TROUBLE SHOOTING
If you are having any problems getting your unit to work after going through the check list,
please call our technical support team for any help.
TOLL FREE 1-888-270-8452
You can also email us at:
[e-mail]
Problem Possible Cause Solution
E3 Error Code The water flow is too restricted. This causes
overheating on the unit.
Allow time to cool down,
Increase water flow, or
reduce power.
B1 or E1 Error Code Temperature sensor problem Contact support for part
replacement
E5 Error Code Electric current leakage Contact support
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) or the digital display
does NOT light up.
No power or incorrect wiring.
Make sure the breakers at
main electrical panel are ON.
You may have a faulty
breaker or unit may be
wired incorrectly.
Flow sensor is not activating
Open up the system and
check to see if anything is
stuck in the flow sensor.
Verify screen is clean.
Contact support.
Water heater is heating, but
the water temperature is not
hot enough.
Flow rate is too high.
Adjust the water valve to
decrease the water flow.
This should increase the
temperature.
The unit is under sized for
the application
Check map sizing guide to
confirm if the correct unit is
installed

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WARRANTY
Manufacturer only warrants to the original purchaser at the original installation address of
purchaser (collectively, the “Buyer”) the hot water generator and its components as
manufactured by the Manufacturer (the "Product") to be free from defects in materials and
workmanship, under normal use and service for the period of time identified below
beginning from the date of Purchase. Manufacturer Warranty is only offered if the
Manufacturer products are installed by a licensed contractor In accordance with National
and Local Codes having jurisdiction governing the installing area, and installed to
Manufacturer Specifications using all included components supplied by Manufacturer and
other parts that may be required to protect equipment.
Warranty for the following units:
MODEL NUMBER
WARRANTY
IR-30
2 Years
IR-234
2 Years
IR-245
2 Years
IR-260
2 Years
IR-288
2 Years
IR-14K220
5 Years Heating Element/3 Years Parts
IR-18K220
5 Years Heating Element/3 Years Parts
This warranty will replace the unit in its entirety should it be defective without repair
determined by Manufacturer for the period above and warranty shall remain in effect from
the original purchase date only. A repair fee will be in place depending on the unit. If faster
shipping service is desired, the Buyer must select and pay.
SUCH WARRANTIES DO NOT COVER:
•Product misuse, tampering or misapplication, accidental damage, or improper
installation.
•Product failure caused by chemical corrosion, or freezing.
•Product failure due to lightning, flood or other natural or manmade calamities.
•Costs incurred for shipping, delivery, handling, and/or administrative charges.
•Labor charges of any kind.
Manufacturer shall not be liable for incidental, consequential, special or contingent damages
or expenses arising, directly or indirectly, from any defect in the hot water generator or the
use of the hot water heater.
Manufacturer shall not be liable for any water damage arising, directly or indirectly, from
any defect in the hot water heater component part(s) or from its use.
Buyer obligation under the terms of purchase and sale require that Warranty Registration
must be returned within the prescribed timeframe (within 30 calendar days) and retain all
proof of purchase, installer receipts for Warranty in order to protect Buyer’s rights and
obtain Manufacturer’s Warranty benefits. The Warranty resides with the Buyer with proof of
purchase; not simply with an individual in possession of a Product.
https://www.supergreenusa.com/support/warranty-registration/

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AFTER (30) CALENDAR DAYS FROM RECEIPT OF PRODUCT THERE WILL BE NO RETURNS OR
WARRANTY WITHOUT RECEIPT OF WARRANTY REGISTRATION BY SUPERGREEN. BUYER
ACCEPTS ALL SALES AS FINAL. ANY ALTERATION TO THE PRODUCT VOIDS ALL
WARRANTIES. SUPERGREEN PRODUCTS IS NOT RESPONSIBLE FOR ANY OTHER CHARGE
OR EXPENSE INCURRED, OTHER THAN THE ORIGINAL PURCHASE PRICE OF THE PRODUCT.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY
TO YOU. THIS WARRANTY GIVES YOU SPECIFIC SOME STATES DO NOT ALLOW THE
EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU
SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHERS.
Manufacturer Contact:
SuperGreen Inc.
4501 107th Circle N. Suite #1
Clearwater, Fl 33762 www.supergreenusa.com
888-270-8452
Manufacturer reserves the right to discontinue, or change at any time, specifications or
designs without notice and without incurring obligations.