I do not believe that the inlet and outlet temperatures (both) are sent out.
You could have a look on the Tuya developer site and see which DPS value are provided in there.
I have grabbed all of my data from the Tuyapi and there is nothing in there that relates
Craig
I came accross this item and thought maybe good to share my experience with a Fairland Heatpump. Even I do not use HomeAssistent I think the info can be usefull. Fairland was very helpfull and send me Modbus documents about the coils/registers etc. You can get the error status, running speed, inlet/outlet temp. Also set the required temp setting, running mode and switch it on/off
Details can be found here
https://www.domoticz.com/forum/viewtopic.php?t=38835
Great work on this - thanks for putting it all together - did you find that you could leave their WIFI controller running as well - or did you do a complete bypass by unpugging it ?
Craig
For my Fairland it is still connected to my Guest WIFI network. But without this Wifi connection the modbus also works. But in my case modbus and the app are still working.
thanks for that - thats great news
I have ordered the same Modbus devices you are using as they look quite neat and will implement this once they arrive.
I use Node red for my system so will probably use that instead to talk Modbus to the device
Craig
I have tried to add my Aquark Mr. silence to Home Assistant but i can only turn it on and off.
The pump is added in the Tuya app and in that app I can control the heatpump perfectly.
I also connected my Tuya account to Home Assistant and I can control lights etc. Also the heatpump is showing and turning on and off works, but changing the temperature doesn’t (also reading current temperature doesn’t show anything).
When changing the temperature I get this error message:
Kan service climate/set_temperature niet aanroepen. Entity climate.inverter_pool_heat_pump does not support this service.
The translation (done by me so the original message can be different:
Cannot call service climate/set_temperature. Entity climate.inverter_pool_heat_pump does not support this service.
Is the Madimack Tuya control able to set the output level, or is just on/off?
Yes, i have a Madimack Elite V3 and works perfectly, including adjusting the power level. I have is turn on when we have lots of solar power and water temp is <30degs. I used Tuya Local.
I use the Ecowitt floating water temp gauge for the water temp sensor, you can’t rely on the Madimack output temp, as it’s not in the pool.
Inspiring! My heat pump arrives on Wednesday. I hope I can set it up as well as you have. What you’ve done with your solar is exactly what i’m imagining.
Good tip regarding the madimack temperature gauge. Where/how did you mount the ecowitt? Did you consider making your own with esphome?
I didn’t consider making my own temp gauge (have done lots with ESPs before) because the Ecowitt gateway connects my weather station as well. The Ecowitt water temp gauge is great because it is completely a sealed floating gauge, it would be hard to build something
I’m pleased to report back that I got my madimack hooked up via Tuya Local. Have not yet gotten around to acquiring a pool temp gauge. Am still temped to make a temperature gauge, which will probably be a mistake, but… makers gonna make.
I would like to give it a go. Could you please share the modbus spec? thanks in advance.
Recently have gotten an Fairland Mr. Silences Full invertor pool heater.
I was able to integrate it with the local tuya hacs integration
(1st time user of tuya, not a real fan and like esphome more 
plans in the future will be to look at modbus)
Currently am still figuring out what all the values are, some where easy to map others less.
If I read the forum, I see some nice climate cards configured. When I try this, I get an unavailable state.
Are some of you able to explain a little bit how this was setup?
I use Tuya Local from HACS instead of Local Tuya.
Then the climate card looks like the screenshots in the posts here.
Does anybody know if the heat pump Aquaforte 90SP is being supported by this integration? According to the manual it’s not using the InverGo app… that’s why I’m hesitating. Before I buy I want to make sure it’s going to work with HA 
!
What parameters did you use for the solar automation?
Have you ever managed to include a heatpump with modbus to HA?
I bought a new heatpump that also has this second, unused RS485 port and i tried to connect to it with a local USB RS485-dongle - without success so far.
My problem is to translate @bluejohn 's input to my software (i tried QModMaster)
I just installed my Aquark and also connected the RS485 port to RS485 to ETH converter. Would be great to have a wired option not just WiFi.
