en:puus_setup
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Table of Contents
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 < 900W, threshold = 4
- if 900W ⇐ power < 1400W, threshold = 5
- if power >= 1400W, threshold = 6
Mitsurunner wiring
Defrost thermistor's wires inside the outdoor unit
Defrost hack wires installed
MitsuRunner's AC wires and current measurement clamp
Sensors
Outdoor heat exchanger sensor (diagonally installed) and two additional sensors just in case
Middle DS18B20 is used for MitsuRunner, blue arrow points to the location of the original defrost thermistor
Outdoor temperature sensor
Enclosure
Other hacks
Defrost thermistor insulated
Holes drilled to avoid ice accumulating
en/puus_setup.1673596532.txt.gz · Last modified: 2023/01/29 21:54 (external edit)