Hello all!
I have two different systems in different places. One is a dumb HVAC at work, the other is a heat pump with fan coils.
My dumb HVAC has one ZigBee relay to turn it on/off and a wall panel to controll everything else (only schedules, temperature and mode, it has no different speeds). It’s cheaper for me to turn it off in the end of the labour day than keeping it working 24/7. My automation for it is done in node-red and I’m using nodes with different temperatures at different times (like very low or very high temperatures make it start earlier), and I’m using nodes for 15min parts (if the temperature is lower or higher than x or y at 07:30 it starts, if not, at 07:45 if temperature is lower or higher than x or y +/- 1ºC it starts, and so on). But I want an automation that calculates the best time for it to start and reach 22ºC at 08h45, based on the actual temperature (I have a ZigBee thermometer/hygrometer to measure the current temperature). It can be done in node-red or directly on home assistant.
My fan coils are Daikin wall mounted units (fwt-ct range of product). Is there a way to controll them with home assistant? Daikin doesn’t have any wifi module for it that I know. But it can be controlled with an IR remote and a wall thermostat (optional). Is there any solution like the Honeywell smart thermostat to controll them?
Thanks for your help!
Most thermostats have that recovery feature built in. You set a schedule and then over time is learns when to come on so that the desired temperature at the start of the period is reached when the period starts.
But for the first one I can’t get a smart thermostat (it’s a Lennox HVAC with carel thermostat with only two wires). So, I have to create a template to calculate the best time for it to start (through ZigBee on/off relay) or use some node in node-red to do the same.
For the Daikin hydronic split (fwt-ct range) do you know any solution/hardware to put it smart?
With the Daikin I use this Broadlink RM4 Mini S Universal IR Remote Control Hub with Sensor Cable and this SmartIR custom_components. Check HERE see if you have similar model or else a lot of hassle to ‘learn’ all the IR commands. I got a couple of wall unit which is not listed there i choose same manufacture with similar model and it worked fine.
Thanks for your answer. But I already knew that solution. It isn’t listed, but I know I can use it because my smartphone with mi remote established connection to work with my unit easily.
But if the broadlink one day fails to connect the unit, for any reason, I won’t know it didn’t start it!
If I can’t get a smart thermostat to work with it (by replacing the optional wired controller), probably I’ll follow that path, but I’ll have to install a power meter to know it is working.
Daikin makes wifi adapters for some of their range. You need to open the front panel and plug in a little box. See if they make one for your model
I use Shelly EM modules to get status with the broaddlink, cheaper solutions than daikin wifi