Intellihot iE1 Tankless Heat Pump Water Heater Owner’s Manual

Intellihot iE1 Tankless Heat Pump Water Heater

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 flooded 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, efficiency, 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.

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.

WARNING
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.

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.

Maintenance

Inlet Strainer Cleaning
The following procedures must be performed atleast once in every three months or it may affect the warranty of the product.

1. The water heater must be turned OFF at the breaker ON/OFF switch before maintenance checks can be performed.
2. Shut off the water inlet valve.
3. Open a nearby tap/faucet and make sure that all the water is drained then close the tap.
4. Use a wrench to loosen the water inlet strainer and remove the strainer.
5. Clean the strainer, reinstall it and tighten the strainer nut.
6. Turn on the power supply.
7. Open the water inlet valve.
8. Perform visual inspection of the water connections to
9. Make sure that there are no leaks.

Fan Guard Cleaning
The following procedures must be performed atleast once in every three months or it may affect the warranty of the product.

1. The water heater must be turned OFF at the breaker
2. ON/OFF switch before maintenance checks can be performed. Make sure that the fan stops rotating.
3. Use a cleaning brush to clean the fan guard at the back and on the side.
4. Turn ON the water heater and make sure that the fan runs properly.

Temperature-Pressure Relief Valve Test
The following procedures must be performed atleast once in every three months or it may affect the warranty of the product.

DANGER

WARNING
When testing the Temperature-Pressure Relief Valve’s functionality, make sure that no one is standing in front of or near the discharge line’s outlet. The discharged water may be hot and may cause injury to personnel.

WARNING
When using a valve, exercise caution because it might be hot and may cause injury to personnel.

CAUTION
Make sure that the surrounding is clear off any objects. The discharged water may be hot and may cause damage to property.

1. Operate the lever at the relief valve’s end several times. Make sure that the valve functions properly.
2. The temperature-pressure relief valve must be replaced if it fails to completely reset and continues to release water.

Wiring Diagrams and Troubleshooting

Operational Flow Chart

Wiring Diagram

Troubleshooting Guide
Before troubleshooting the water heater for faults please see Section “2. Safety” on page 6 for safety instructions

Temperature Sensor Open – Upper Thermal Battery Error

connectors are correctly attached.
Unplugged connectors| Replace the temperature sensor.
Faulty temperature sensor
Nicked or Broken wire.| Replace nicked or broken wires.
Incorrect temperature sensor wiring
Too much heat in the water outlet or water inlet| Allow the water outlet temperature to decrease and make sure the resistance of the temperature sensor at the connector is 18 kΩ at 50°F, 10 kΩ at 77°F, 3 kΩ at 140°F.
Faulty temperature sensor controller| **** Replace the Control Board.

Temperature Sensor Shorted- Bottom Thermal Battery Error

connectors are correctly attached.
Nipped or Broken wire| Replace nicked or broken wires.
Faulty temperature sensor| Replace the temperature sensor.

Temperature Sensor is Out of Range- Bottom Thermal Battery

Sensor value is outside the range
Temperature Sensor is disconnected| Make sure that the temperature sensor connectors are correctly attached.
**** Nipped or Broken wire| Make sure the connectors are dry and free of corosion.

Heat Exchanger Valve Fault

and free of corosion.
Nicked or broken connector| Replace nicked or broken wires and make sure the wire are correctly connected.
Faulty temperature sensor wiring
Water valve clogged or damaged| Replace the water valve

Bypass Valve Fault

dry and free of corosion.
Incorrect or broken wiring
Nicked or broken connector
Faulty temperature sensor wiring| Make sure that the temperature sensor connectors are correctly attached.
Water valve clogged or damaged| Replace the water valve
Faulty IoT interface board| Replace IoT interface board

Float Switch Failed

Bypass Valve Fault

Serviceable Parts

Display

CTA2045

Electronics

Cold Side

70 DURO

| 2
17| IGT-FTT0302| RETAINING RING, G3/4| 2
18| IGT-HRD0020| CLIP, RETAINING, Ø19mm-

Ø20mm

| 3
19| IGT-FTT0296| FITTING, ADAPTER, 20mm X G3/4| 2
20| IGT-VL0044-2| COIL ISOLATION VALVE| 1
21| IGT-SPR0003| FLOW SENSOR SPARE PARTS KIT| 1
22| IGT-OR0010| O-Ring #113 EPDM, FDA, 70 DURO| 1
23| IGT-FTT0297| FITTING, ADAPTER, 19mm X 1-1/4 NPT| 1

Cold Side

Cold Side

Glycol Side

Glycol Side

Tank

Heat Pump

Miscellaneous

Intellihot Inc. | www.intellihot.com | 2900 W. Main Street, Galesburg, IL 61401 | 877.835.1705 | [email protected]

References

• Intellihot | Best Commercial Tankless Water Heater Manufacturer

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