Intellihot iQ2001 Tankless Water Heating Systems User Guide

iQ2001 Tankless Water Heating Systems
User Guide

Operation

12.1 Control Panel

Turning Water Heater ON and OFF

1. When power is applied to the water heater or the electrical switches are turned ON, the Main Menu screen will automatically appear.
   

2. To turn the water heater OFF, press and hold the Power button in the upper left of the screen.

3. Press the Power button to turn the unit ON.

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 its source. Touching live electrical components can cause serious injury or death.
Setting the Time

Press the Up/Down arrows to make adjustments. A progress bar will be displayed until the change completed on all the control boards.
Press the Back button to return to the main screen.

Adjusting the Water Temperature
Note: The outlet water temperature is factory preset to 120°F, however these commercial water heaters are capable of heating water to 190°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.

1. Press the +/- sign to increase/decrease the temperature by 1 °F. Press and hold the +/- sign to increase/decrease the temperature by 5 °F.
   Follow the on screen prompts to complete the temperature change.

Security
Setting Passcode Protection
It is not necessary to set a passcode for the water heater to function properly. This feature is available to help prevent unauthorized access to the unit.

Changing Passcode

12.5.3 Forgot Passcode
If the unit passcode is lost or forgotten, press the “?” icon and call technical support.

12.6 INTouch (aka BMS)
If equipped, the INTouch icon will be active.

Life Screen
These screens provide a visual indication of the remaining life of various components.
Note: Parts can be ordered by contacting technical support.

Service recommended: Order appropriate replacement part as soon as possible. To reset life, press and hold the appropriate bar and follow the prompts.

Service required: Take IMMEDIATE action when this screen appears because the part life is critical. To reset life, press and hold the appropriate bar and follow the prompts.
When a part is replaced, the screens will provide replacement part information and a screen to reset the service meter for the part being replaced.

O-Ring
(at the HEX inlet & HEX outlet)| 310
Internal Pump| 6452

Unit Information
This screen provides the model, software version, serial number, and a link to the contact us screen for the water heater.

More Screens

12.9.1 Wi-Fi
Intellihot Gen II water heaters are Wi-Fi (2.4 GHz only)
capable with the factory installed IGT-SPR0085 Wi-Fi module.
This feature also allows the units to be monitored and controlled from a mobile device by using telliCare app.

By using Forget Wi-Fi Network option existing Wi-Fi connection can be cleared.

By using Forget Wi-Fi Network option existing Wi-Fi connection can be cleared.

12.9.2 Error History

There are several error history screens. One screen provides
an overview of the entire unit. Pressing the (+) icon provides
more detailed error information.| Left and Right bank error history screens.

12.9.3 telliCare Service (Subscribe at Startup)
telliCare is a Wi-Fi enabled, prognostics and predictive maintenance service for Gen II water heaters. This service allows water heaters to be monitored and controlled remotely via telliCare app on a mobile device.
On Startup:

If telliCare setup is skipped, register the unit by scanning the QR Code via the App
Note: Each individual unit must be registered and each unit can only be registered once.

Subscribe to this service by downloading the telliCare app from iTunes App Store and following the prompts on the app.
Two status screens provide the expiration date of the service and if it is on an auto renewal schedule.

Connecting Multiple Units

General Information
Multiple units can be connected together to supply large demands of hot water.
The water heaters communicate through a cable connection between each water heater. The benefits of connecting the units are:

• When demand for hot water is low, fewer units will operate.
• If one unit has an error code, the others will continue to operate.
• Changing the settings (temperature, time, etc.) on one unit changes settings on all the units.
• It allows shut down of one unit for maintenance while the others continue to operate.

13.2 Installation Procedure

1. Connect all the units to a gas supply pipe. Make sure the pipe is properly sized in accordance with the BTU draw and number of units being operated. Refer to “6. Gas Connection” on page 18 for additional information.

2. Connect all the units to the power supply. Refer to “9. Electrical Power” on page 36 for additional information.

3. Install the combustion (fresh) air intake and exhaust outlet pipes. Refer to “7. Air Intake Inlet and Exhaust Gas Outlet Pipe Connections” on page 23 for additional information.

4. Install and connect the hot water lines. If an optional hot water storage tank is required, connect the hot water lines to this tank. Make sure the water pipe is properly sized in accordance with the number of units being operated.

5. Install and connect the cold water lines. Make sure the water line is properly sized in accordance with the number of units being operated.

6. Connect and route the condensate drain lines to a suitable discharge location. Refer to “8. Water Connections” on page 33 for additional information.

7. Do Not connect the communication cables at this time.

8. Power up all the units and assign a unique number, one through three to each unit. Set the STAGGING to ON.
   When the multi unit setup changed, the system take a few seconds to complete the changes.
   Note: Different A maximum of two iQ3001 water heater or three iQ2001 water can be connected. A iQ2001 and iQ3001 can be cascaded together as well.
   WARNING
   Before making any adjustments or connections inside the water heater cabinet, make sure the power is disconnected. Unplug the power and/or turn the circuit breaker OFF.

9. If necessary, press the Power button to turn OFF each water heater in the system and disconnect power from all the units in the system.

10. Open the side panels and locate the main circuit boards.

11. Connect the included communication cable from an open jack on the circuit board in one unit to an open jack in the next unit. Repeat this step as required by the number of water heaters being connected.

12. On the first water heater, Position the switch in the ON position (up) as shown in the table below.

13. Position all other switches on the circuit boards in the unit to the OFF position (down).

14. On any water heater unit between the first and last unit, the position of all DIP SW3 switches should be in the OFF position (down).

15. On the last water heater, locate DIP Switch 3 as shown in the table below.

16. Once the communication cables are routed and connected and the DIP switches are correctly positioned, close and lock the front door.

17. Reconnect the power and turn the water heater ON. The water heaters, should now be ready to communicate with each other and operate as a single system.

telliCare for Multiple Units
If cascading mulitple units, the Wi-Fi module on all units besides “Unit 1” in the sequence need to be disconnected to make room for cascade communication cables. Remove the attached cable at each end from the referenced jacks and set aside.

Note:
A. Whenever a change is made to any one water heater, all the other units in the system will be automatically updated to the new settings.
B. A simple way to check the cascading setup is to change temperature 1 degree down on one unit. All other units will show the new temperature within 2 minutes.

Cascade Termination DIPSW 3 Setting (iQ2001 Two Units)| Cable Connection| Note
---|---|---
Model| DIP SW 3 ON (up)| DIP SW 3 OFF (down)| Cascade cable connects from Unit#1 HEX8 to Unit#2 HEX8.| Remove the iOT board from Unit#2
iQ2001 Unit# 1| HEX 5| HEX 1, 2, 3, 4, 6, 7, & 8
iQ2001 Unit #2| HEX 5| HEX 1, 2, 3, 4, 6, 7, & 8
Cascade Termination DIPSW 3 Setting (iQ2001 Three Units)| Cable Connection| Note
---|---|---
Model| DIP SW 3 ON (up)| DIP SW 3 OFF (down)| Cascade cable connects from Unit#1 HEX8 to Unit#2 HEX8. Unit#2 HEX5 to Unit#3 HEX8| Remove the iOT board from Unit#2 and Unit#3
iQ2001 Unit# 1| HEX 5| HEX 1, 2, 3, 4, 6, 7, & 8
iQ2001 Unit #2| | All HEXes
iQ2001 Unit #3| HEX 5| HEX 1, 2, 3, 4, 6, 7, & 8
Cascade Termination DIPSW 3 Setting (iQ3001 Two Units)| Cable Connection| Note
---|---|---
Model| DIP SW 3 ON (up)| DIP SW 3 OFF (down)| Cascade cable connects from HEX12 to HEX12| Remove the iOT board from Unit#2
iQ3001 Unit# 1| HEX 7| HEX 1, 2, 3, 4, 5, 6, 8, 9, 10, 11 & 12
iQ3001 Unit #2| HEX 7| HEX 1, 2, 3, 4, 5, 6, 8, 9, 10, 11 & 12
Cascade Termination DIPSW 3 Setting (iQ2001 & iQ3001)| Cable Connection| Note
---|---|---
Model| DIP SW 3 ON (up)| DIP SW 3 OFF (down)| Cascade cable connects from HEX8 from the iQ2001 to the HEX12 on the iQ3001| Remove the iOT board from Unit#2
iQ2001 Unit# 1| HEX 5| HEX 1, 2, 3, 4, 6, 7, & 8
iQ3001 Unit #2| HEX 7| HEX 1, 2, 3, 4, 5, 6, 8, 9, 10, 11 & 12

Maintenance

Air Filter
Inspection
Check the filter every six months for dirt and dust build-up.
Clean and re-oil the filter annually. If the filter is dirty, follow the cleaning procedure.
Note: The air filter is manufactured by K&N. Contact K&N at 800-858-3333 or online at www.knfilters.com for the necessary supplies to clean the filter.

1. Loosen the band clamp and remove the air filter.

2. Inspect the inside of the filter for dirt and dust build-up. Clean the filter, if needed.

3. After inspection and/or cleaning, replace the air filter and snugly tighten the band clamp.

14.1.2 Cleaning Procedure

1. Liberally spray K&N Air Filter Cleaner and Degreaser (99-0606) onto both sides of filter and allow to soak for 10 minutes to loosen the dirt. Do not allow cleaner to dry on air filter.
   NOTICE
   K&N Air Filter Cleaner is the only cleaner formulated to safely clean K&N air filters with cotton media. The use of any other cleaning solution could damage the cotton material.

2. Rinse the air filter with cool low-pressure water applied from the outside inward in order to flush the dirt out of the filter. Continue to rinse the filter until all traces of cleaner are gone. It may be necessary to repeat Steps 1 and 2.

3. After rinsing, gently shake off the excess water and air dry the filter.
   NOTICE
   Do not use compressed air to dry the filter. Do not apply oil to the filter until it is completely dry.

4. Spray K&N Aerosol Air Filter Oil (99-0504) evenly along the crown of each pleat holding nozzle about 3” away. Allow oil to wick for approximately 20 minutes. Touch up any light areas on either side of the filter until there is a uniform red color at all areas.

14.2 Maintenance-Free Circulation Pumps
The circulation pumps are maintenance-free and therefore does not require any servicing. The speed setting must be set to Speed 3 (III). ****

Condensate Trap & Neutralizer
NOTICE
This heater does NOT have an integrated condensate trap.
An external trap must be installed to prevent CO from backing into the room.

1. Please follow the condensate trap manufacturer’s recommended maintenance. We recommend every 3 months or as often as necessary.
2. If condensate neutralizer is installed, please follow the condensate neutralizer maintenance as per the manufacturer’s recommendation.

Wye Strainer
NOTICE
This heater includes an external Wye strainer. The Wye strainer must be installed to qualify for unit warranty.

1. Please clean the Wye strainer every 3 months.

14.5 Heat Engine Locations
Use the following diagrams to identify the location of the heat engines.

When a Heat Exchanger is idle due to low demand, it will display this heat exchanger is on standby. A button named as more available to view the parameters.

Wiring Diagrams and Troubleshooting

Operational Flow Chart

Complete Wiring Diagram (iQ2001 & iQ3001)

Control Board Wiring Diagram (iQ2001)

Control Board Wiring Diagram (iQ3001)

Troubleshooting Guide

screen).
•  Malfunction of monitored part or
system.| • Refer to the remedy for indicated part or system.
Alive
| • Shows status of water heater.
• Sleep mode.
• Sleep mode passcode protected.
• Indicates an alert exists within the monitored systems.
• Indicates a fault exists within the monitored parts or system.
•  Indicates a fault exists within the monitored parts or system.| • Touch display screen to awake.
• Touch display screen to awake and enter passcode.
• Refer to the remedy for indicated part or system.
• Refer to the remedy for indicated part or system.
• Refer to the remedy for indicated part or system.

Serviceable Parts

Display

Right Side

Flue
and Hotwater Outlet Sensors)
IGT-ELC0085| iOT Kit
IGT-ELC0181| DSI to Electrode HV Cable
IGT-ELCO275| Display Harness
IGT-ELCO274| Heat Exchanger Harness
IGT-ELCO268| Air Filter Switch Harness
IGT-ELCO266| Manifold Inlet Harness
IGT-ELCO267| Manifold Outlet Harness
IGT-ELCO269| Bypass Valve Harness
IGT-ELCO273C| iQ3001 Power Harness
IGT-ELCO270C| iQ2001 Power Harness
IGT-ELC0138| Rocker Switch
IGT-SPRO117| BMS Bacnet Kit

References

• Washable Air Filters, Cabin Filters, Cold Air Kits & Oil Filters | K&N

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