Wall installation ONE - HestiaPi/hestia-touch-openhab GitHub Wiki

HestiaPi's case comes in 2 parts. The backplate that goes to the wall and should not be visible and the front cover. The backplate should have 4 small holes, 3 larger holes and an opening for the wires coming from the wall.

If you bought HestiaPi, all internal screws are replaced with plastic rivets. Otherwise you would need:

  • 4 x 2.5Mx25mm hex screws
  • 4 x 2.5M hex nuts

For attaching to the wall you need:

  • 4 x 3.5Mx40mm non-countersunk screws

Place the hex screws through the 4 small holes entering from the side facing the wall. Secure them in the hex slot and make sure they are sit flush. Remove the LCD from the PCB and insert the PCB alone guiding the 4 screws through the 4 corner holes of the Pi and secure with the nuts. Avoid using a large tool. You can simply tighten them by hand. Don't overtighten.

With the remaining 3 larger holes mark your wall and drill according to the location of the wires. The opening of the backplate should match the location of the wires. Secure the backplate and PCB with the 3 larger screws.

Complete wiring according to your model instructions.

Wiring Diagram for US/HVAC model Wiring Diagram for EU model

Remove any protective film from the LCD if present and lock the LCD on the cover from the inside making sure the LCD's header is at the top.

Guide the 4 wires through the slit of bottom partition of the cover and secure the sensor in it so that it is thermally protected from the rest of the circuit.

If you installed the bottom screw it may block the cover to fully insert. Clip off part of the sensor partition to allow enough clearance.

Hold the front cover aligned to the backplate and bring closer while you make sure the pin header of the PCB is aligned to the header of the LCD. Push firmly from the sides of the cover and not from the LCD till it locks in place. Make sure no wires are caught in between as this may block the cover from locking in place securely.