Intallation guide: HUB

Kiona's HUB is a combination of outdoor temperature sensor and collecting unit for
wM-Bus sensors. This article provides information on how to install and register HUBs.

Prerequisites

• Be qualified to carry out electrical installations.
• Have a personal Kiona-account from the building owner or from Kiona's Technical Support.
• Carry and use measuring equipment for control measurement of resistance, voltage and polarity. (measuring equipment should have a large measurment range as some signal typs send very high resistances)

Contents

• HUB
• Small black antenna
• 24VDC transformer
• Kiona junction box
• Kiona info stickers with QR-code

Preparation

Some things to think about before you start:

• Locate and find out what kind of signal the existing outdoor sensor uses
  Outdoor sensors are usually located on the north façade of the building. The signal type may be visible on the exsisting outdoor sensor, if not, use a multimeter to measure the resistance or voltage and compare with the resistance/voltage tables at the bottom of this article. (insert link to resistance table here).
• Locate heating central and controller
  The heating central is usually located in the basement similar space. The controller will be located in the heating central and will most likely have a display where you see temperatures.
• Mount on North façade
  It is essential to mount the HUB in a location that is not exposed to direct sunlight, as sun exposure can affect the accuracy of the built-in temperature sensors. DO NOT REMOVE the existing outdoor sensor from the façade. In case of any issues or if the installation cannot be completed in one day, keeping the old sensor in place allows for an easy reversion if necessary.
• Do NOT mount on metal sheet façade
  The HUB should not be mounted on a metal sheet façade, as this can reduce its ability to communicate via GSM/GPRS and also reduce its ability to collect sensor data from Kiona's wireless sensors installed in the building. If it is unavoidable, ensure there is a minimum distance of 5 cm between the HUB and the façade.
• Wiring
  We recommend using 4x1 mm² cables. Minimum wire area is 0,6 mm².
  Shielded cables are not mandatory.
  Cable will go from HUB straight to the junction box that should be placed indoors near the controller. From the junction box, 2 wires go directly to the controller where the current outdoor sensor is connected.
• Note the controller settings
  Do this before editing any settings so we have original settings documented.
• Default signal type is Ni1000(LG)
  Before the HUB is registered the default signal type is always Ni1000(LG). If the controller uses a different signal type you will get strange outdoor temperatures or no outdoor temperature before the registration is completed with the correct signal type.

Installation

• Mount the HUB on the north façade beside the existing outdoor temperature sensor. If the building does not have a north façade then it should be mounted facing northwest to avoid morning sun.
• The Kiona junction box that is included with the HUB should be placed in the substation and NOT outside on the façade. This allows for easier troubleshooting if needed.
• Connecting the HUB:

1. 1. 1. Power supply: The transformer that comes with the unit should be connected to 230VAC, which it converts to 24VDC. If the transformer is not used, it is important to ensure that 24VDC is directly connected to the terminal. NOTE: The power supply must always be connected and should not be linked to other systems such as lighting or circulation pumps.
      2. Cables from the HUB: Four out of the five cables from the HUB will be used in a standard installation. Depending on the signal type needed for the controller you will use either the white or the orange cable. The picture below shows wiring for a controller with passive signal type.
         Orange = active signal (0-10V)
         White = passive signal (resistance, ohm)
      3. Signal cables: The signal cable goes from the terminal into the controller input for outdoor temperature sensor. It is important that the signal cable from the junction box is connected with the correct polarity in the controller, white/orange B(+) and green M(-).

• Confirm +24VDC polarity/voltage before powering the HUB.
• When the HUB is powered, a red light will flash on the bottom, when the light flashes green, it is OK to start the registration process.
• Capture both close-up and distant photos of the installed HUB:
  • Close-up photos for quality assurance of the mounting.
  • Distant photos for easy identification in case of future troubleshooting.

Registration

Info

You will need the contract number to complete the registration. Contract number can be found on the packing slip or in Edge.

1. Log in with your credentials, if you don't have any - Contact your contact person at the real estate company.
2. Select Hub (2.0)
3. Enter the contract number(found on the packing slip) of the property you are installing on.
4. Make sure that the building's address is correct, then click next.
5. Select the location by using GPS or enter the address.
   1. Click on the map where the Hub is located to place a marker.
   2. You can also add detailed information about the placement in a text field. 
6. Select the antenna that is connected to the Hub.
7. Upload the photos you took earlier.
   
8. Selecting a controller brand will suggest a signal type for you.
   
9. A summary will now be shown, check that all the information is correct and click "I Accept," and then click Next.
10. Make sure that the value of Teq displayed in the tool corresponds to the outside temperature in the controller.
11. Temperature test ensures that the controller recieves the correct temperature that the HUB is simulating. Choose between 1 min or 2 min.
    • Press -10 to start signal test. The Hub will now simulate -10 degrees for 60 seconds or 120 seconds depending on which duration you choose. Make sure you get this value in the heating controller. Once the test is complete, the temperature will be restored to normal.
    • Press +10 to start signal test. The Hub will now simulate +10 degrees for 60 seconds or 120 seconds depending on which duration you choose. Make sure you get this value in the heating controller. Once the test is complete, the temperature will be restored to normal.
12. If the test results are ok (Maximum difference of 1.5 ºC), click on the "I accept" box and then on Next. If the test is not ok, check that cables are connected correctly and try again.
13. Sensor check is to ensure that the HUB is receiving data from wM-Bus devices, for example pipe.packages installed and registered in the heating central. This test is optional so if there are no wM-Bus devices registered to the contract you can simply click Next.
14. Registration complete! Call Kiona installation support (0300-713 00) for verification and settings control.
15. Place the sticker(Important! This heating system is optimized by Kiona”) on, or nearby the heating controller.

NOTE!

Very important that the outdoor temperature is correct before leaving the substation. If you are unsure, you should call Kiona's installation support. If you are having trouble getting the correct temperature in the heating controller, take a look at this article for tips on how to troubleshoot the HUB: Troubleshooting: HUB

Technical specifications