Intellihot iQ1501 Commercial Tankless Water Heater Instruction Manual

Intellihot iQ1501 Commercial Tankless Water Heater

Product Information

Specifications:

• Model: iQ751 – iQ1501
• Software Version: Jan 2021 – Revision 04
• Wi-Fi Module : IGT-SPR0085

Product Usage Instructions

Control Panel
The control panel is used to navigate through various settings and options of the water heater.

Turning Water Heater ON and OFF

1. When power is applied or the electrical switch is turned ON, the Main Menu screen will appear.
2. To turn OFF, press and hold the Power button.
3. Press the Power button to turn ON the unit.

Setting the Time
Follow the on-screen prompts to set the time on the water heater.

Adjusting the Water Temperature

1. Ensure all water faucets are closed.
2. Press the Up/Down arrows to adjust the temperature.
3. Press the Back button to return to the main screen.

Security
To set passcode protection, follow the instructions provided. In case of a forgotten passcode, press the ? icon and call technical support.

iNTouch (aka BMS)
If equipped, the iNTouch icon will be active for additional features and controls.

Life Screen
This screen displays the remaining life of various components. Contact technical support for part orders.

Unit Information
This screen provides model details, software version, serial number, and contact information for support. Press (+) to view heat engine details.

More Screens
Explore additional screens for error history, Wi-Fi status, and telliCare service for remote monitoring and maintenance.

FAQ

What should I do if I forget the passcode?
If you forget the passcode, press the ? icon and call technical support for assistance. Follow the prompts provided.

Operation

Control Panel

• Main Menu Screen

• Selecting the Menu button brings up this screen.

• A sleep mode screen will appear after a period of inactivity.

Turning Water Heater ON and OFF

1. When power is applied to the water heater or the electrical switch is 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.
• All water faucets must be closed before changing the temperature setting. The unit must not be operating.

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.

2. 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.

  * Press ON/OFF and follow the prompts.

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

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.

• Press the (+) button to show the details of the various heat engines.

• 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.
  Service Alert| Reset Code
  ---|---
  Electrode| 0836
  Blower| 2009
  Time Valve (Water Valve)| 0721
  Gas Valve| 0682
  O-Ring

(at the HEX inlet & HEX outlet)

|

0310

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

1. Wi-Fi
   • Intellihot Gen II water heaters are Wi-Fi 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.

  * Status of Wi-Fi connection screens.

2. **Error History

**
There are two error history screens. One screen provides an overview of the entire unit. Pressing the (+) icon provides more detailed error information.

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 an app on a mobile device.
   • On Startup:

  * Tap anywhere on the screen to conti

  * If setup is not complete:

  * 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 follow the prompts on the app.

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.

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 37 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 communication cables at this time.
8. Power up all the units and assign a unique number, one through four to each unit. Set the STAGING to ON.

When the multi unit setup changed, the system take a few seconds to complete the changes.
Note: Different size water heaters (iQ751, iQ1001, or iQ1501) can be connected. When assigning unit numbers, start with the smallest unit and progress to the largest.
WARNING
Before making any adjustments or connections inside the water heater cabinet, make sure the power is disconnected. Unplug the water 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 front door 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, locate DIP Switch 3 on circuit board 1. Position the switch in the ON position (left) as shown in the table below.

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

14. On any water heater unit between the first and last unit, Unit 2 and/or Unit 3, position all DIP SW3 switches in the OFF position (right).

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.

18. On the first water heater, locate DIP Switch 3 on circuit board 1. Position the switch in the ON position (left) as shown in the table below.

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

20. On any water heater unit between the first and last unit, Unit 2 and/or Unit 3, position all DIP SW3 switches in the OFF position (right).

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

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

23. 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
    Note:

    • 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.

    • 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.
      iQ751/iQ1001/iQ1501 Cascading Support

      Model (Max Number of Cascaded Units)|

iQ751

|

iQ1001

|

iQ1501

iQ751| Yes (Max 4 units)| Yes (Max 4 units| Yes (Max 4 units)
iQ1001| Yes (Max 4 units)| Yes (Max 4 units)| Yes (Max 4 units)
iQ1501| Yes (Max 4 units)| Yes (Max 4 units)| Yes (Max 4 units)
All other models (i200, i250, iQ251, iQ251D, iN401,

iN501, iQ2001 and iQ3001)

|

Not Supported

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.

Cascade Termination DIPSW 3 Setting(Two Units)| Cable Connection| Note
---|---|---
Unit| DIP SW 3 ON (up)| DIP SW 3 OFF (down)|

Cascade cable connects from Unit#1 last HEX to Unit#2 H1

|

Remove the iOT board

from Unit#2

Unit# 1| H1| Except H1
Unit #2| Last HEX| Except Last HEX
Cascade Termination DIPSW 3 Setting(Three Units)| Cable Connection| Note
---|---|---
Unit| DIP SW 3 ON (up)| DIP SW 3 OFF (down)| 1.  Cascade cable connects from Unit#1 last HEX to Unit#2 H1.

2.   Cascade cable connects from Unit#2 last HEX to Unit#3 H1.

|

Remove the iOT board from Unit#2 and Unit#3.

Unit# 1| H1| Except H1
Unit #2| –| All HEXes
Unit #3| Last HEX| Except Last HEX
Cascade Termination DIPSW 3 Setting(Two Units)| Cable Connection| Note
---|---|---
Unit| DIP SW 3 ON (up)| DIP SW 3 OFF (down)| 1.  Cascade cable connects fromUnit#1 last HEX to Unit#2 H1.

2.   Cascade cable connects froUnit#2 last HEX to Unit#3 H1.

3.   Cascade cable connects from Unit#3 last HEX to Unit#4 H1.

|

Remove the iOT board from Unit#2, Unit#3 and Unit#4

Unit# 1| H1| Except H1
Unit #2| –| All HEXes
Unit #3| –| All HEXes
Unit #4| Last HEX| Except Llast HEX

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