Differences

This shows you the differences between two versions of the page.

--- en:puus_setup [2023/01/10 15:41] – created puu
+++ en:puus_setup [2023/02/06 12:16] (current) – [Outdoor heat exchanger sensor] puu
@@ Line 1: / Line 1: @@
-=== Outdoor unit opened ===
+====== puu's MitsuRunner setup =====
-{{:en:1613833132673.png|}}
-=== Defrost thermistor's wires ===
+  * My slightly modified MitsuRunner software on GitHub: https://github.com/kestopuu/mitsurunner/
-{{:en:1613833227097.png|}}
-=== Defrost hack wires installed ===
+Notable changes to the original SW and HW:
-{{:en:1613833279863.png|}}
+  * 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 =====
-=== Installed and taped ===
+==== Defrost thermistor's wires inside the outdoor unit ====
-{{:en:1613833353619.png|}}
+{{: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 =====
-=== Holes drilled to avoid ice accumulating: ===
+==== Outdoor heat exchanger sensor ====
-{{:en:1628058345389.png|}}
+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|}}
+ \\ \\
+----
-=== Defrost thermistor insulated ===
+===== Enclosure =====
-{{:en:1628058402250.png|}}
+{{:1628058612319.jpg?direct&600|}}
+{{:1628058837331.jpg?direct&600|}}
+{{:1628059021262.jpg?direct&600|}}
+ \\ \\
+----
-=== Outdoor heat exchanger sensor and spare sensor for the hack ===
+===== Other hacks =====
-{{:en:1628058538905.png|}}
+==== Defrost thermistor insulated ====
-=== One spare sensor on upper pipe ===
+{{:1628058402250.jpg?direct&600|}}
-{{:en:1628058554351.png|}}
+ \\ \\
+==== Holes drilled to avoid ice accumulating ====
-=== MitsuRunner in its enclosure ===
+{{:1628058345389.jpg?direct&600|}}
-{{:en:1628058612319.png|}}
-=== Enclosure inside the outdoor unit ===
-{{:en:1628058837331.png|}}
-{{:en:1628059021262.png|}}
-=== MitsuRunner's AC wires connecter ===
-{{:en:1628058938369.png|}}
-=== Outdoor temperature thermistor ===
-{{:en:1628059042729.png|}}
-{{:en:1628083497222.png|}}