Four-Zone Wireless WiFi Thermostat PNI CT440 with Tuya Smart App
Code: PNI-CT440Product detailed description
PNI CT440 is a thermostat with WiFi connectivity, designed for homes, offices and other buildings where comfort and a clear overview of heating or cooling matter. You can monitor and adjust the temperature remotely in the Tuya Smart app for Android and iOS, or choose an automatic mode with a schedule for different parts of the day.
The PNI CT440 comes with four control units (transmitters with a display). Each of them measures and regulates the temperature in a different room, so one system manages four separate zones. The receiver unit has a dedicated 230 V AC output for each zone, to which you connect a pump, a zone (solenoid) valve or a pump group. In addition, it has a volt-free relay that switches the boiler or another heat or cooling source with an NO-type thermostat input (dry contact). The complete set weighs 1.264 kg.
Key features
- four control units for separate regulation of four rooms
- four 230 V AC outputs for pumps, zone valves or pump groups and a volt-free relay for the boiler
- heating and cooling mode (summer/winter)
- room temperature monitoring, setting the required temperature, planning daily operating hours and timed operation in the Tuya Smart app
- daily schedule with 4 time periods and a weekly schedule from Monday to Sunday
- open window detection and frost protection
- local temperature control directly on the portable control unit
Daily program
Each day of the week can have its own plan with four time periods, for example according to your working routine. A typical example: at 06:00 in the morning you set 23 degrees, at 08:00 you lower it to 22, in the afternoon at 17:00 you raise it again to 23 and in the evening at 23:00 you lower it to 21 degrees. The plan can be adjusted on the thermostat or in your phone.
No unnecessary heating while airing
After the open window function (OWD) is enabled in the advanced settings, the thermostat reacts to a rapid temperature drop; by default it is triggered by a drop of 2 °C within 15 minutes. Heating switches off and a corresponding symbol appears on the screen. After 30 minutes the device automatically returns to the previous mode. Pressing any button during this time ends the function and restores the programmed mode.
Technical data
| Product type | wireless internet thermostat, 4 zones |
| Intended for | heating and cooling |
| Compatible brand | universal |
| Mounting | control units on the wall or desk, receiver unit on the wall |
| Material | ABS |
| Colour | white |
| Connection | wireless to the router, wireless between the receiver and the control units, wired to the heat source and to 4 pumps/valves/pump groups |
| Power supply | control unit: 2 AAA batteries, receiver unit: 230 V mains |
| Set temperature range | 5 – 35 °C, step 0.5 °C |
| Measured temperature range | 0 – 50 °C, unit °Celsius |
| Sensor sensitivity | ± 0.1 °C |
| Hysteresis | 0.2 °C (adjustable 0.1 – 6 °C) |
| Operating modes | heating / cooling (summer / winter) |
| Smartphone app | Tuya Smart / Smart Life |
| Weight | 1.264 kg |
Configurable parameters
- calibration of the internal temperature sensor
- minimum and maximum adjustable temperature
- frost protection temperature
- hysteresis
- open window function parameters
Control unit (4 pcs)
- 2 LR3/AAA batteries (not included)
- backlit 3.7" screen
- displayed data: measured room temperature, required temperature, time, current program, wireless connection status and low battery
- placement on the wall or on a desk, radio communication at 868 MHz
Receiver unit
- wall mounting and 230 V AC, 50/60 Hz power supply
- connection to the router via WiFi 802.11b/g/n (2.4 GHz), to the control units via 868 MHz radio
- for the boiler: volt-free NO/NC relay, maximum rating of the controlled circuit 12 – 240 V AC/DC, 10 A
- for the zones: 4 powered 230 V AC outputs (COM-NO), max. 5 A each
- buttons for main on/off, pairing and local control of each of the 4 zones
Use
The thermostat suits homes with central heating, underfloor heating or cooling, where up to four zones need to be controlled and remote control is wanted. Connecting the receiver to the 230 V mains should be done by an experienced electrician. Also make sure that the load of the controlled circuits does not exceed the stated ratings of the relay and the outputs.
Package contents
- four control units with a display
- receiver unit
- wall brackets, desk stands and mounting screws
- user manual
Frequently asked questions
Can I use the thermostat for several rooms at once?
Yes, that is the purpose of this model. Four control units monitor and regulate the temperature in four separate rooms.
What happens after the open window detection is enabled?
When the temperature drops quickly, heating switches off and the previous mode is restored after 30 minutes.
Which app is used for control?
Tuya Smart (or Smart Life), available for both Android and iOS.
Downloads
Additional parameters
| Category: | WiFi/Smart thermostats |
|---|---|
| Weight: | 1.264 kg |
| EAN: | 5949066537158 |
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