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en:puus_setup [2023/01/10 15:41] – created puuen:puus_setup [2023/02/06 12:16] (current) – [Outdoor heat exchanger sensor] puu
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-=== Outdoor unit opened === +====== puu's MitsuRunner setup =====
-{{:en:1613833132673.png|}}+
  
-=== Defrost thermistor's wires === +  * My slightly modified MitsuRunner software on GitHubhttps://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 
 +    * if 900W <power < 1000W, threshold 
 +    * 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|}}+
  
en/puus_setup.1673358068.txt.gz · Last modified: 2023/01/29 21:54 (external edit)

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