cgk-025v3l-b.
You need rs485 module.
I am using the model SPRSUN CGK-040V3L-B
12kw, R32, motherboard of ELECHICO model CC902, Elfin-EW11, Sprsun Heat Pump App, NO Tuya
Can I integrate the heat pump into Home Assistant with the Elfin via Modbus with your yamel?
Or should I still buy the Zlan 7110m?
https://a.aliexpress.com/_EI8cH21
Or is it better to use an esp?
Thank you for your work, I look forward to your answer!
I use the original elfin connection with heat pump : GitHub - PiterPiotr/Sprsun-PC: Integration of the Sprsun CGKxxxV3L-B heat pump with HA
@Piter123 I would like to ask you to share more details, I have bought this heat pump CGK-040VL3-B and in one week it will be installed. You are saying that the heat pump has everything out of box, there is EW11 already installed so I do not need to buy something extra hardware e.g. rs485 module ? I am familiar with HA, I have done a lot of stuff but I haven’t used modbus before, so it would be helpfull if you can share how I have to proceed to successfully connect the pump to HA in a few steps. Best regards
Yes, EW11 was included. Once you start the pump, install the application, check that everything works, make a copy of the EW11 settings and configure Modbus in EW11 according to the configuration Sprsun-PC/ew11_configuration.jpg at e37828738ed189ad51b423344d2010a8764db7a9 · PiterPiotr/Sprsun-PC · GitHub
Unfortunately, the apk configuration needs to be removed.
Powerworld R290 heatpumps seems to use a similar control board with similar modbus interface.
Any chance getting this Powerworld heatpump modbus interface supported by your code blackscreener ? 
Powerworld R290 Monoblock support · Issue #1 · PiterPiotr/Sprsun-PC (github.com)
Hi, could someone please point me in the right direction.
I’ve never done this before but I’m trying to intergrate my heat pump into HA. I’ve been given a modbus registry and have been playing around trying to get a sample of code to work. Could someone please check and guide me, this is an example of what i’ve tried:
modbus:
- name: HP+Link
delay: 5
timeout: 5
type: tcp
host: 192.168.0.169
port: 502
switches:
name: “Unit On or Off”
unique_id: “uniton”
slave: 1
address: 0
write_type: coil
command_on: 1
command_off: 0
verify:
input_type: coil
address: 2
state_on: 1
state_off: 0
Many thanks for any help, i’d just love to get any data back from the heat pump, atleast just to prove i’m in the right direction and my physical setup is correct.
Hi, the repo is not avaiable 
try to connect to cc902 board. Cant find example code…