It is a good practice to make sure all of your dip switches are set to the factory position on all of your flow selector boxes during installation. If the dip switches are not set in the factory position you will have L11 and E17 error codes to follow. You can verify the factory dip switch settings by looking at access door on the flow selector box. The L11 and E17 error codes can also be caused by wiring issues, good wiring practices can prevent having problems.


Changing dip switches on your flow selectors is not necessary because all of your flow selector addresses and port numbers are set using and codes 00FE and 0105 on your thermostat. Making sure your flow selector address and your flow selector port address is correct will make the start up process much easier. If care is taken and you have a good understanding of the wiring and installation of a VRF system the start up process can be close to seamless.


L11- Detected indoor unit address, Flow selector unit not connected.


E17- Communication trouble between indoor unit and flow selector unit.

John Grenade

Technical Service Manager • Southwest District

March 18, 2024

SystemVu Software Update

In today’s world of computers, smartphones, electronic devices they require updates for them to operate correctly. The same applies to the HVAC Industry, with units having controllers with software programs that need updates from time to time. In this article we will talk about the process to update the software in the SystemVu controller. The SystemVu is available in the following Models: 48/50FC, 48/50/GC, and 48/50LC.


The SystemVu Software Update Process in simple, below is listed the items that are needed to complete this process.


  • USB Thumb Drive no larger than 16 Gigabytes in size.
  • The latest version of software for the unit you are updating from HVACPARTNERS.COM.


In HVACPartners>Dashboard>Post-Sales-Support>Service Software


  • Once you have downloaded the last version for your unit, unzip the file and copy the SW_IMG folder and paste it on the USB Thumb Drive.


Now that you have the latest software on your USB Drive you are ready to begin to update the controller. Be sure to record your model and serial numbers, you will need them later. Once the USB Thumb Drive is inserted into the USB socket, the device will ask if want to use the USB Options?

Electronics control board with display and buttons, red arrow pointing to a chip on the right
Blue screen text: “USB CONNECTED PROCEED WITH USB OPTIONS?” with Yes and No menu choices.

Select Yes with the up and down arrows, the press Enter.


The USB Options has 5 options as shown below:

Blue-gray device menu showing “Data Acquisition” with save configs and file transfer options.

Each of the USB Options require a user login. When prompted to Log In, with the ENTER PASSWORD screen. Use the Up arrow twice to change each star to a 1 then press ENTER- do this for all characters.

Screen shows “ENTER PASSWORD” with masked input, “1***” beneath it.
Password entry screen with “1111” typed and Back and Enter buttons below.

Once you have logged in, you will need to save the equipment current configurations by choosing: “SAVE CONFIGS TO A FILE”. Align the arrow on the SAVE CONFIGS TO FILE option and press ENTER. Then press ENTER to make the STOP flash, use the UP or DOWN arrows to change the STOP to START and press ENTER. Once this is done, Choose Option 5 to UPGRADE SOFTWARE. Then scroll down to “FIND APPLICATION FILE” and press ENTER to change NO to YES.

Computer screen showing the message “+FIND APPLICATION FILE NO” in blue text on a light background

Then press ENTER to choose the USB Product Folders:

Screen showing the menu title “USB PRODUCT FOLDERS:” on a light background.

Then select the Product Software: Once selected press ENTER.

Blue monochrome LCD display reading “LC PRODUCT SOFTWARE:” with two lines of numbers beneath.

The update process will start. This will take a few minutes.

Software update screens showing firmware progress, complete message, and boot validation text on a device display

When all the files have transferred the device will restart and installed the update. Once the device has started up you need to verify that Model Number, Serial Number, and other parameters were retained. From the Main Menu select SERVICE, then select UNIT INFORMATION to see if the update retains your model and serial number. Then select SAVE CONFIGS FILE and select YES to find the .CSV file with same last four numbers of the serial number. This will restore the configurations saved prior to the update.

Camera menu showing

Press Enter and the congregations will be restored. The update process is now completed. The system will should operate normally. You have successfully updated the software for your SystemVu.


Sources:


HVAC Partners

Disclaimer: The technical statements, information and recommendations contained herein are believed to be accurate as of the date hereof, but Mingledorff’s does not make representations or warranties, express or implied, as to its accuracy, its completeness, or the results to be obtained. The information is being provided for informational purposes only and is intended for use by persons having adequate skill and expertise regarding the proper selection, use and application of the products and recommendations and at their own risk and discretion.

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