====== puu's MitsuRunner setup =====

  * My slightly modified MitsuRunner software on GitHub: https://github.com/kestopuu/mitsurunner/

Notable changes to the original SW and HW:
  * Two additional Dallas sensors in heat exchanger pipes (used for research and as spare parts)
  * Current clamp sensor monitoring input power of the heat pump
  * Variable temperature delta threshold to start defrosting:
    * if (input) power < 500W, threshold = 4
    * if 900W <= power < 1000W, threshold = 5
    * if power >= 1000W, threshold = 6
 \\ \\ 
----

===== MitsuRunner wiring =====

==== Defrost thermistor's wires inside the outdoor unit ====
{{:1613833132673.jpg?direct&600|}}
{{:1613833227097.jpg?direct&600|}}
 \\ \\ 
==== Defrost hack wires installed ====
{{:1613833279863.jpg?direct&600|}}
{{:1613833353619.jpg?direct&600|}}
 \\ \\ 
==== MitsuRunner's AC wires and current measurement clamp ====
{{:1628058938369.jpg?direct&600|}}
 \\ \\ 
----

===== Sensors =====

==== Outdoor heat exchanger sensor ====
Outdoor heat exchanger sensor (vertically installed on the lowest pipe) and two additional sensors just in case
{{:1628058538905.jpg?direct&600|}}
{{:1628058554351.jpg?direct&600|}}
 \\ \\ 
==== Middle DS18B20 is used for MitsuRunner, blue arrow points to the location of the original defrost thermistor ====
{{:1628143146973.jpg?direct&600|}}
 \\ \\ 
==== Outdoor temperature sensor ====
{{:1628059042729.jpg?direct&600|}}
{{:1628083497222.jpg?direct&600|}}
 \\ \\ 
----

===== Enclosure =====

{{:1628058612319.jpg?direct&600|}}
{{:1628058837331.jpg?direct&600|}}
{{:1628059021262.jpg?direct&600|}}
 \\ \\ 
----

===== Other hacks =====

==== Defrost thermistor insulated ====
{{:1628058402250.jpg?direct&600|}}
 \\ \\ 
==== Holes drilled to avoid ice accumulating ====
{{:1628058345389.jpg?direct&600|}}