Greenway

Smart control: - reduces power costs of air handling units - adjusts ventilation to your everyday needs - provides a wide range of control options It has been estimated that smart control allows to half the average cost of electricity for ventilation.

  Control ERV based on AQI Sensor I I really struggle with using Rule Machine...I feel like it has a steep learning curve for some reason. Anyways, I have a PurpleAir Sensor (integrated with HE already) to measure the air quality in our house. When one of the values reaches 45, I want to switch on our ERV (it's already a switch in HE). I then want it to turn off when the value reaches 15. I don't want it to turn off if the Master Bathroom fan is on however. (I have a rule that turns on/off the ERV according to that switch state. Should I combine these into 1 rule? How would it look? The custom attribute used for the sensor will be  aqi10 . https://community.hubitat.com/t/control-erv-based-on-aqi-sensor/36656 Ventilation control  30 1 / 2 Mar 30 6h ago Mar 30 My house has an Energy Recovery Ventilator (ERV) which brings in fresh air from outdoors. It has a heat exchanger to capture heat (or cool) from the outgoing air. Until recently, it was controlled by a controller in t...

Some 3rd Party Code  GitHub

 We get around a 1C boost to the fresh air from loft heat exchange with the duct. The loft is consistently between 4 and 15 C hotter than the outside air and even at night boosts heat in the fresh air duct to the living room. An unanticipated benifit

4 port fan working

  The Hookup For proof of concept seems to run reliably in the lab. I don't want to be up and down ladders to make update I intend keeping the control system in Hubitat so I can tinker to my Hearts content. Boost fan PWM control as well as start relays. The valve position is a separate driver and device in Hubitat, This will use one of the PWM Four boost fans in the ducts for each room inlet. One fan in the two way turbo exhaust valve. The valve position is a separate driver and device in Hubitat, This will use one of the PWM pins on the Wemos and its analogue input for the position pot Hubitat Valve Position Driver import groovy.json.JsonSlurper metadata { definition(name: "Greenway ERV Turbo Valve", namespace: "Greenway", author: "Nick Goodey") { capability "Initialize" capability "Switch" capability "Switch Level" command "on" command "off" } preferences { section("Device...