PNI CT25T Smart WIFI Radiator Thermostat User Manual

PNI CT25T Smart WIFI Radiator Thermostat

Product presentation

PNI CT25T is a thermostat that measures the air temperature and regulates according to this the water flow inside the radiator. This thermostat does not control the heating boiler. Install a thermostatic head on each radiator and set the desired temperature for each room. How fast the temperature in a room rises depends on the settings made in the boiler and the size of the radiator. For a correct measurement of the ambient temperature, the thermostatic head must not be covered by curtains or blocked by pieces of furniture.

Main features

• Backlit screen
• Universal thread M30 x 1.5
• 5 keys for device setting
• PID controller (proportional–integral–derivative)
• Schedule per day (7 days), 4 periods per day
• The screen displays the room temperature, the set temperature, the day of the week and the time
• The temperature is displayed in Celsius degrees

Technical specifications

Power voltage	2 x AA batteries 1.5V
Memory type	EEPROM
Frequency	868MHz
Transmission power	<25mW
Set temperature	+5°C ~ +35°C
Temperature step	0.5°C
Measurement accuracy	±1°C
Maximum piston extension	5.0mm
Waterproof class	IP20

Description of screen icons

Battery installation

• Remove the cover from the back of the thermostatic head.
• Insert 2 AA alkaline batteries respecting the polarity indicated on the housing.
• Replace the cover.

Installation of thermostatic head on the thermostatic valve
Install the thermostatic head on the radiator’s valve by screwing on the M30 adapter or using one of the included adapters.

Included adapters

Device initialization

• After installing the batteries, IN IL will appear on the screen, which indicates the initialization of the device.
• When Ad AP appears on the screen, press ▲ to switch from 0 to 1 (the thermostatic head will automatically adapt to the closed-open state of the valve). The thermostatic head will close and open twice to store the two positions (closed-open).

Settings

Setting the time and the day of the week

• Long press P for about 5 seconds. Only the 7 time will be displayed on the screen. The minute indicator will flash. Press the key ▲ or ▼ until you reach the desired value (00 – 60). Short press the key P to confirm.
• Then the hour indicator will flash. Press the key ▲ or ▼ until you reach the desired value (00 – 24). Short press the key P to confirm.
• Finally, the indicator for the day of the week will flash. Press the key ▲ or ▼ until you reach the desired value (1 – 7).
• Press the key to exit the time and day setting interface.

Key lock function

If the Child Protection function has been activated in the parameter setting menu (see page 10), the thermostat keys will lock as soon as the screen backlight turns off. Long press the key M for about 5 seconds to temporarily unlock the keys.

Mode setting
Press the key M to switch to one of 3 modes: Manual, Scheduled or Eco (Vacation).

Schedule by day

• Long press the key P.
• After setting the time and day of the week, you will enter the programming mode of the 4 periods for each day of the week.
• It starts with setting the first day of the week (day 1) and the first period (period 1)
• The start time* and temperature* will flash on the screen. Each time you press the key P the chosen value will be confirmed and the next setting will be made.
• After setting the time and temperature for the first period, it automatically switches to the second period, then to the third and fourth.
• This will continue with the setting of the 4 periods for each day of the week (1 – 7).

Note: The time can be changed from quarter to quarter of an hour, and the temperature from half to half a degree. For example, you can set the time to 07:15 or 07:30 or 07:45 and the temperature to 22.0°C or 22.5°C or 23.0°C

Default settings

Period	1		2
	Hour	Temp.	Hour	Temp.
12345 (M-F)	07:00	22°C	08:30	19°C
6 (S)	08:00	22°C	08:30	22°C
7 (S)	08:00	22°C	08:30	22°C
Period	3		4
	Hour	Temp.	Hour	Temp.
12345 (M-F)	17:00	22°C	17:00	19°C
6 (S)	17:00	22°C	22:00	19°C
7 (S)	17:00	22°C	22:00	19°C

Open window detection function
If this function is activated in the parameter setting menu (see page 10), the thermostatic head will stop the heating if the room temperature drops suddenly (default setting, 2°C in 15 minutes). This sudden drop in temperature occurs when a window or door is opened while the heating boiler is operating. The open window icon appears on the screen.

• The device will return to its original operating mode after 30 minutes. The icon disappears from the screen.
• By pressing any key, you will exit the “open window” mode.

Setting parameters

• Switch off the thermostat by briefly pressing the key . Only the time and day of the week will be displayed on the screen.
• Press the keys M and ▲ simultaneously, until 01 0.0°C appears on the screen.
• Press the keys ▲ or ▼ until you reach the desired value. Press M to move to the next parameter.

Menu	Description	Interval	Default
01	Internal sensor calibration	-8°C~8°C	0°C
02	Setting the maximum temperature limit	5°C ~35°C	35°C

03	Setting the minimum temperature limit	5°C ~35°C	5°C
05	Antifreeze temperature	5°C~15°C	5°C
10	Screen display	0: room temp. 1: set temp.	0
11	Child protection	0: Keys unlocked 1: Keys locked	0
12	Open window detection	1: On 0: Off	0
13	The time interval in which the sudden drop in temperature is detected	2~30 min.	15 min.
14	Degrees lost in the time interval set at point 13	2°C 3°C 4°C	2°C

15	The time after which the device returns to its original mode of operation	10~60 min	30 min.
17	Reset	0: No 1: Yes. Press for 5 seconds. Wait for the restart therm.	0
	Software version
	Software version
31	Battery voltage	Unit: 10mV
32	PID P-band selection	2°C~10°C	7°C
33	PID I-Time selection	30~90 min	30 min

Pairing with the PNI CT25WIFI hub
The PNI CT25WIFI hub is not included in the package, it must be purchased separately. To remotely control the thermostatic head through the Tuya Smart application, it must be paired with the PNI CT25WIFI internet hub.Instructions for pairing the two devices can be found in the hub’s user manual.

Simplified EU declaration of conformity
SC ONLINESHOP SRL declares that Intelligent Thermostatic Head PNI CT25T is in accordance with RED Directive 2014/53/EU. The full text of the EU Declaration of Conformity is available at the following internet address : https://www.mypni.eu/products/7999/download/certifications

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PNI CT25T Smart WIFI Radiator Thermostat User Manual

PNI CT25T Smart WIFI Radiator Thermostat User Manual