Intellihot iE1 User manual

Operation Manual
iE1

Thank you for purchasing this Intellihot unit.
This unit is designed for years of trouble free operation, and I urge you to read and follow the
instructions in this “Operation & Installation Manual.”
Our mission to create a better heating system began back in the winter of 2005 when a tank
water heater broke down and ooded my basement. By combining the principles of a diesel
engine’s robustness, robotics intelligence, and marine environment durability, we set out to
design a unit from the ground up that would outperform and outlast all others.
Quickly, our goal grew from not just making a better water heater, but creating an intelligent
water heating and delivery system. Innovation is our hallmark and simplicity, eciency, and
durability are at the core of every lntellihot product.
Our products are proudly engineered and built in Galesburg, Illinois. lntellihot has helped
commercial customers throughout the nation save thousands of dollars while eliminating
downtime. Our talented team of dedicated professionals is ready to assist you and help your
business succeed.
I thank you for purchasing our lntellihot products.
Sincerely,
Sri Deivasigamani
CEO, lntellihot Inc.

Table of Contents
8. Operations
8.1 Unit Overview ........................24
8.1.1 Start Page – Temperature Setting ...24
8.1.2 Error Page ......................24
8.1.3 Main Page – Menu Options......... 24
8.1.4 FLOW/TEMP....................25
8.1.5 telliCare ........................25
8.1.6 Life............................25
8.1.7 UNITINFO–ContactInformation ...26
8.1.8 HISTORY .......................26
8.1.9 SETTINGS ......................26
8.1.10 TIME/DATE .....................26
8.1.11 SECURITY ...................... 27
8.1.12 MODE ......................... 27
8.1.13CTA-2045 ...................... 27
8.1.14CASCADING .................... 27
8.1.15BMS–BuildingManagementSoftware28
8.2 Turning Water Heater ON and OFF ........28
8.3 Adjusting the Water Temperature .........28
9. Multi-unit Setup
9.1 General Information ....................30
9.2 Installation Procedure ..................30
9.3 Updates .............................30
9.4 How Will It Work? .....................30
9.5 AutoDiscoveryNotication.............. 31
9.6 CascadingProcess..................... 31
9.7 OineCascading......................32
9.7.1 Cascading–Proposalexplanation ...32
9.8 Adding/RemovingUnits.................32
9.9 Cascade–Unabletosetup..............33
This product complies with UL 60335-2-40/CSA 22.2 Electric Water Heater. For use as potable water heating

DANGER
To avoid product damage, personal injury, or even
possible death, carefully read, understand, and
follow all the instructions in this Installation &
Operation Manual before installing this product.
Improper installation, adjustment, alteration, or maintenance
can cause injury, loss of life, and/or property damage.
This water heater should be installed and serviced by a
qualified technician. The lack of proper service can result in a
dangerous condition.
This manual must remain with the water heater
Due to Intellihot’s policy of continuous product improvement
and technology, the design, technical specifications, or both
in this manual are subject to change without notice.
This manual contains safety information, installation
instructions, and maintenance procedures. It must be left
with the homeowner or placed near the water heater in a
noncombustible location. The customer should retain this
manual for future reference.
Contact Information
Call us, your dealer, first if you have any questions about this
product. We can help answer questions about installation,
operation, or if there are damaged or missing parts when
unpacking this unit from the shipping box.
Dealer Contact Information.
Electrical Shock Hazard - Do Not Touch
Electrical Shock Hazard
If the water heater becomes immersed in water up to or
above the level of the bottom of the element doors, the
heater should be examined by a qualified service agency
before it is placed in operation.
WARNING

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8. Operations
8.1 Unit Overview
1. The display screen shows the user operating information
of the iE1 Electric Water Heater.
2. The display screens given below are shown with an
image as an example of the display screen and its
applicable description and user operations wherever
required.
8.1.1 Start Page – Temperature Setting
1. After the water heater is turned ON, the main screen will
appear with the temperature setting option.
2. To increase the temperature as required, press the right
arrow icon > shown in the image given below.
3. To decrease the temperature as required, press the left
arrow icon < as shown in the image given below.
4. A loading bar will progress in the bottom the display
screen as shown in the image given below.
5. The loading bar will disappear after the progress is fully
completed.
6. To turn OFF the display screen, press the power icon on
the left corner of the display screen.
8.1.2 Error Page
1. If the loading bar does not complete the progress, an
error screen will appear as shown in the image given
below.
2. If any other error code appears, please refer to Section
“11.3 Troubleshooting Guide” on page 38.
3. Press the CONTACT US icon on the error page to
access the contact information for any technical support
on your iE1 Electric Water Heater product as shown in the
image below.
4. Press the back icon < to go back to the previous menu.
8.1.3 Main Page – Menu Options
Press the menu icon as shown in “8.1.1 Start Page –
Temperature Setting” to view the main page with the menu
options as shown in the image given below.
Press the back icon < to go back to the previous menu.

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8.1.4 FLOW/TEMP
1. Press the FLOW/TEMP icon as shown in Section
“8.1.3 Main Page – Menu Options” to access the
FLOW/TEMP options as shown in the image given below.
Nomenclature Description
Water Inlet Temperature of the Inlet Water
Water Outlet Temperature of the Outlet Water
Thermal Battery Percentage of Thermal Battery Charge
Flow Rate Rate of water in Gallons Per Minute
Ambient Air
temperature Temperature of the atmospheric air.
Pump Status ON/OFF status of the Pump
Heating Elements ON/OFF status of the Heating Elements
Evaporator Fan ON/OFF status of the Evaporator Fan
Compressor ON/OFF status of the Compressor
2. Press the back icon < to go back to the previous menu.
8.1.5 telliCare
1. Press the telliCare icon to access your subscription
status of the telliCare service as shown in Section 8.2.1
Main Page – Menu Options.
8.1.6 Life
1. Press the LIFE icon to access the status of the life time
of the components as shown in Section 8.2.1 Main Page –
Menu Options.
Nomenclature Description
Maintenance Life status of Maintenance to be carried out
Water Valve Life status of the Water Valve to be replaced
Pump Status of the Pump to be replaced
Heating Elements Status of the Heating Elements to be replaced
Evaporator Fan Status of the Evaporator Fan to be replaced
2. Press and hold bar to reset the life-status of the
components.
3. Enter the correct replacement code to re-set the life-
status of the above components as shown in the above
image.
4. Press the back icon < to go back to the previous menu.
NOTE: Maintenance does not require a code to reset.

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8.1.7 UNIT INFO – Contact Information
1. Press the UNIT INFO icon as shown in Section “8.1.3
Main Page – Menu Options” to access the contact
information for any technical support on your iE1 Electric
Water Heater product
2. The Unit Info pages displays your unit’s serial number,
model number, and software version as shown in the
below image.
3. Press the back icon < to go back to the previous menu.
8.1.8 HISTORY
1. Press the HISTORY icon as shown in “8.1.3 Main Page –
Menu Options” to access the history of the recent errors/
fault in the water heater.
2. Only a maximum of last 10 errors/fault with their
respective time and date will be given as shown in the
below image.
8.1.9 SETTINGS
Press the SETTINGS icon as shown in Section 8.2.1 Main
Page – Menu Options to access the setting options as
shown in the image below.
Press the back icon < to go back to the previous menu.
8.1.10 TIME/DATE
Press the TIME/DATE icon as shown in Section
8.2.7 Settings to access the TIME/DATE options as shown in
the image below.
Press the up or down arrow from the above options in your
display screen to set the correct date and time.
Press the back icon < to go back to the previous menu.

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8.1.11 SECURITY
1. Press the SECURITY icon as shown in Section
2. 8.2.7 Settings to access the SECURITY options as shown
in the image below.
3. Press the ON options to choose and confirm a 4 digit
pass-code for your water heater.
4. Press the SET PASSCODE button to reset your 4-digit
passcode.
5. In case of PASSCODE Error, please refer to Section 8.2.5
Unit Info – Contact Information.
6. Press the back icon < to go back to the previous menu.
8.1.12 MODE
1. Press the MODE icon as shown in Section 8.2.7 Settings
to access the MODE options as shown in the image
below.
2. Operate the water heater from the options as shown in
the below image and table.
Nomenclature Description
Efficiency Efficiency Mode uses the heat pump to heat
water.
Electric Electric Mode uses heating elements to heat
water
Hybrid
Hybrid Mode uses heat pump as the primary
heating source, the heating elements will heat
water if demand exceeds. It combines high
energy efficiency with reduced recovery time
Self-Learn
Unit automatically determines the source of
heat and manages the thermal battery based on
the usage pattern, it is the most efficient mode
(recommended)
8.1.13 CTA-2045
1. Press the CTA-2045 icon as shown in Section 8.2.7
Settings to access the CTA-2045 status as shown in the
image and table below.
Nomenclature Description
CTA-2045 STATUS Allows you to choose ONLINE or OFFLINE
options.
Allow Grid Control Allows you to ON or OFF the Allow Grid Control
options.
Level of Grid Support Allows you to choose from OFF – 0%, LOW
-30%, MID – 50%, HIGH – 100%
100% options.
Unit automatically determines the source of heat
and manages the thermal battery based on the
usage pattern
Allow Battery
Supercharge
Allows you to choose ON or OFF the Allow
Battery Supercharge option. With Supercharge,
the tank can charge up to 190 °F
8.1.14 CASCADING
1. Press the CASCADING icon as shown in Section 8.2.7
Settings to access the CASCADING options as shown in
the image below.
2. If there is more than one unit installed in the same
location (within 50 meters), please refer to Section 9.
Multi-Unit Overview.

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8.1.15 BMS – Building Management Software
3. Press the BMS icon as shown in Section 8.2.7 Settings
to access the BMS options as shown in the image given
below.
8.2 Turning Water Heater ON and OFF
When power is applied to the water heater or the electrical
switch is turned ON, the following initialization screen
appears.
WARNING
Turning the unit OFF does not disconnect it from the power
source. Whenever working around electrical components
within the water heater, turn off the power at the ON/OFF
breaker switch. Touching live electrical components can cause
serious injury or death.
Main menu screen automatically appears.
To turn the water heater OFF, press and hold the power
button in the top left side of the screen.
8.3 Adjusting the Water Temperature
NOTICE
The outlet water temperature is factory preset to 120°F,
however these commercial water heaters can heat water to
170°F.
DANGER
Hot water temperature over 125°F (52°C) can cause severe
burns instantly or death from scalding. Children, the disabled,
and the elderly are at the highest risk of being scalded. Do not
leave children or the infirm unsupervised. Check temperature
of hot water before taking a shower or bath. To control water
temperature to a particular faucet, temperature limiting valves
can be installed by your service professional.
If temperature is changed while someone taking shower could
cause scalding. Due to this it is recommended that all water
faucets and showers must be closed before changing the
temperature setting.

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Firmly press the (>) and (<) to increase or decrease
temperature. Firmly hold the icon until the display reaches
the desired temperature.
If temperature set to 140 or higher, a scalding warning
message will be displayed.

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9. Multi-unit Setup
9.1 General Information
Multiple units can be connected together to supply a large
demand for hot water.
The water heaters communicate through standard Bluetooth
connection (Wi-Fi 2.4 GHz Frequency) between each water
heater. The benefits of connecting the units are
• When demand for hot water is low, fewer units operate.
• If one unit has an error code, the others continue to
operate.
• Changing the settings (temperature, time, etc.) on one-unit
changes settings on all the units.
• It allows shutdown of one unit for maintenance while the
others continue to operate.
9.2 Installation Procedure
1. Make sure the water heaters are installed in the same
room. Maximum distance separation allowed is 50 ft. Any
concrete walls or separator between the units would e
communication loss and the units will not see each other.
2. Connect all the units to the power supply. Refer to
“section 7 electrical power” for additional information.
3. Install and connect the hot water lines. Make sure the
water pipe is properly sized in accordance with the
number of units being operated.
4. Install and connect the cold-water lines. Make sure the
water line is properly sized in accordance with the number
of units being operated.
5. Connect and route the condensate drain lines to a suitable
discharge location.
6. Power ON each unit one by one and wait until each unit
finishes the initialization screen. Make sure all units are in
thermal battery charging stage before continuing.
7. Each unit will have a cellular/bluetooth module used for
both cloud connection and cascade.
9.3 How Will It Work?
On First Discovery
•If units are nearby and able to cascade, a popup will
show on the display letting customer know that other
units have been discovered.
•Separation distance is limited to 50 ft.

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9.4 Auto Discovery Notification
Popups will show on any screen of the display on first time
discovery of other units. Once interacted, popup will never
show again.
Popup will not show if unit has been added into a cascade
setup.
•Yes -> Navigate to Multi-Unit settings.
•No -> Skips setup and stays on
•Current page (Normal Option).
9.5 Cascading Process
Units should be within 50 feet to enable cascading.
•No unit cascaded.
•No unit available for cascade.
For a cascade setup, click icon above the unit on the screen
to add current unit with one available unit.
Discovered units
setting
cascading
yes
(any screen)

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To remove from cascade setup, click icon above the unit
on the screen.
For a cascade setup, click icon above the unit on the
screen to add current unit with another available units.
9.6 Offline Cascading
Cascading of units that are not currently ON is not
recommended and it can cause operational problems.
This icon indicates that the concerned unit is offline from
the current unit bank.
The offline unit can be removed by holding the icon on
the screen.
9.6.1 Cascading – Proposal explanation
Make sure the water heaters are installed in the same
room. Maximum distance separation allowed is 50 ft. Any
concrete walls or separator between the units would cause
communication loss and the units will not see each other.
Communication errors with multi-unit setup may lead to hot
water delivery issues. It may cause randomly opening and
closing of the valves.
9.7 Adding/Removing Units
For a cascade setup, click icon above the unit on the
screen to add current unit with one available unit.
By the click of the icon, ‘SAVE’ option will appear on the
screen.

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After clicking the ‘SAVE’ option, second screen will appear
with ‘Multi-Unit Setup in progress
9.8 Cascade – Unable to setup
The maximum number of units that can be connected is four.

Intellihot Inc. | www.intellihot.com | 2900 W. Main Street, Galesburg, IL 61401 | 877.835.1705 | [email protected]
IGT-MNL0067
08-2023
iE1