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JoostBaltissen edited this page Aug 28, 2023 · 1 revision

Frequently used tweak on the DemandFlow by using the ithowifi unit.

An often heard complain with the DemandFlow is the overshoot in CO2, especially in the bedrooms. The DemandFlow sets per default the minimum flow of the bedrooms to 0. Increasing the minimum flow to 10 (depending on the size of the room) the DemandFlow is better able to keep the CO2 levels below the threshold. minimum_flow_bedroom

Setup virtual remotes on a DemandFlow unit.

Requirements

An installed and configured Non-CVE on the DemandFlow unit.

A step-by-step guide to link virtual remotes to independent rooms from the DemandFlow.

  1. Increase the amount of virtual remotes in the System settings screen of the ithowifi unit.

  2. Create a virtual remote in the virtual remotes screen on the ithowifi unit. The ID isn't very important, but the remote type must be RFT Auto. Remember the index. virtual_remote

  3. Powercycle the Demandflow unit. Press (within 30 seconds) after the powercycle on the IBS-button on the blue Demandflow unit. The alarmled on the Demandflow will blink with 4 Hz. The ventilation unit will vary in rpm.

  4. Use the original remote to select the desired room to be linked to the virtual remote. The cooking pot and hourglass can be used to select the correct room. The LED of the room will light up when selected.

rft_remote

  1. Use the webapi of the ithowifi unit to join the virtual remote to the room. Use the correct index of the virtual remote.

http://192.168.x.y/api.html?vremotecmd=join&vremoteindex=0

The room LED on the Demandflow will start blinking. It stays blinking until another room is selected.

Repeat the steps above for every room.

  1. After 5 minutes of inactivity the Demandflow unit will fall back in normal operation.
  2. Now the rooms can be controlled by the webapi of the ithowifi unit.

Set High

http://192.168.x.y/api.html?vremotecmd=high&vremoteindex=0

And back to Auto

http://192.168.x.y/api.html?vremotecmd=auto&vremoteindex=0