TSUN + PHNIX
See TSUN solar production and PHNIX in one app. Automatic solar control of PHNIX isn't available in Zerofy yet.
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See TSUN solar production and PHNIX side by side. Automatic solar control isn't available yet.
Cloud Integration
No hardware required. Connect your TSUN and PHNIX via cloud APIs in minutes.
TSUN + PHNIX: TL;DR
TSUN and PHNIX both connect to Zerofy, but automatic solar control of PHNIX isn't available yet. Zerofy reads your TSUN system through TSUN Smart and controls your PHNIX heat pump through the PHNIX cloud. No extra hardware needed.
What Zerofy can do with TSUN and PHNIX
| Solar data from TSUN | Live values and history, new data every 5 min |
| Connection to PHNIX | Cloud – your PHNIX account |
| Set room temperature | Yes |
| Set flow temperature | Yes |
| Autopilot: Solar mode | Not available |
| Autopilot: Smart mode (tariffs and forecasts) | Not available |
In practice
- Autopilot isn’t available for PHNIX yet, so Zerofy won’t run your PHNIX heat pump on solar surplus automatically. You can see TSUN production and PHNIX in one app and adjust the room temperature and flow temperature from there.
- Because Zerofy does not run PHNIX units on surplus automatically, put the heating or pool-heating window into the middle of the day with a schedule; pool heat pumps run mainly in summer, when midday PV output is highest.
What TSUN and PHNIX offer on their own
TSUN: TSUN has no heat pump or heating-rod control in its product range.
PHNIX: PHNIX’s “PV Ready” function lets the heat pump adjust its compressor frequency to the available solar power, controlled by a home energy manager or, if there is none, by PHNIX’s own Smart Meter. A “Spot Time” mode works with grid prices (target temperature, maximum frequency, six daily timers), and the Heco series also has an SG Ready interface.
Zerofy connects the two: it reads TSUN production and controls your PHNIX heat pump to match, together with your other devices in one app.
Setting up TSUN and PHNIX in Zerofy
1. Connect TSUN
Zerofy connects to the TSUN cloud with your TSUN Smart login and reads your inverter data.
- Register your system in the TSUN Smart app.
- In Zerofy, add an inverter, choose TSUN and log in with your TSUN Smart credentials.
Good to know: Only TSUN Smart accounts work (inverter IDs starting with Y); TSUN Home accounts are not supported. Battery and meter data are only partly available, depending on the system.
2. Connect PHNIX
Zerofy connects to the PHNIX cloud with your PHNIX app login and shows the heat pump’s live status; you can set the room temperature and the water circulation temperature from Zerofy.
- Connect the heat pump to the internet and register it in the PHNIX app.
- In Zerofy, add PHNIX and log in with your PHNIX account credentials.
Good to know: Zerofy’s Autopilot does not yet run PHNIX heat pumps on solar surplus or dynamic prices; control from Zerofy is manual or by schedule.
About TSUN and PHNIX
TSUN – TSUN (TSUNESS Co., Ltd., Suzhou, China, with a German office in Frankfurt) makes microinverters from 300 W single units to 3.3 kW 6-in-1 units. In Europe it is mainly found in 800 W balcony systems such as the TSOL-MS800, often combined with TSUN balcony storage (MSU2000, MSU4000Elite). Monitoring app: TSUN Smart.
PHNIX – Guangdong PHNIX Eco-energy Solution Ltd. is a Chinese heat pump manufacturer based in Guangzhou (Nansha), founded in 2002. It makes air-to-water heat pumps for heating, cooling and hot water, hot-water heat pumps and swimming pool heat pumps, and exports about half its products, including to Europe. Products: Air-to-water heat pumps (Everest, Heco, GreenTherm Pro R290, HeatGreen), airExpert R290 all-in-one hot-water heat pump, full-inverter swimming pool heat pumps.
Manufacturer information last checked: October 2026.
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