TFPF03MC - Thermostat Seitron - Free user manual and instructions
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| Product type | Digital thermostat for fan coil units |
| Brand | Seitron |
| Model | TFPF03MC |
| Dimensions (W x H x D) | 129 x 96 x 37 mm |
| Weight | ~265 g |
| Power supply | 230 V~ or 24 V~ (selectable via jumper JP1/JP2) |
| Power consumption | 1.2 VA |
| Operating temperature | 0 °C to 40 °C |
| Storage temperature | -10 °C to +50 °C |
| Operating humidity | 20 % to 80 % RH (non-condensing) |
| Protection rating | IP20 |
| Housing material | Self-extinguishing ABS V0 |
| Housing color | Dome: safety white; base and keys: light gray |
| Temperature sensor type | NTC 4.7 kΩ ±2% at 25 °C (internal or external optional) |
| Ambient temperature accuracy | ±1 °C |
| Ambient temperature resolution | 0.1 °C |
| Control range | 5 °C to 35 °C (configurable) |
| Display range | 0 °C to 40 °C |
| Differential | 0.2 °C to 1.0 °C (adjustable) |
| Fan outputs | 3 voltage-free relays (terminals 1-4): 3 A @ 230 V~, cos φ=1 |
| Valve outputs | Terminals 8-11: 0.3 A @ 230 V~, max 10 VA (inductive load) |
| Main functions | 3-speed fan control, heating/cooling mode, automatic changeover, Economy function, antifreeze, minimum thermostat, dirty filter alert |
| Supported installation types | 2-pipe, 4-pipe, integral electric heater, heat pump |
| Maintenance and cleaning | Periodic cleaning of the fan coil filter; the unit signals via the display "FIL-TER"; reset by holding the speed key for 10 seconds |
| Safety | Power supply via omnipolar switch (contact gap ≥3 mm); installation by qualified personnel; double insulation of accessible probes |
| Spare parts and repairability | NTC 4.7 kΩ sensor; repairs reserved for a professional |
| General information | Compliant with European directive 1999/44/EC; warranty available on request |
Frequently Asked Questions - TFPF03MC Seitron
How to switch from heating to cooling mode?
Press and hold the On/Off key for a few seconds until hea (heating) or Coo (cooling) appears. Then press the speed key to toggle between modes. The selection is automatically saved after a few seconds.
How to adjust the fan speed?
Press the ♣ (speed) key multiple times to cycle through options: FI1 (low speed), FI2 (medium), FI3 (high) and AUT (automatic). In automatic mode, the speed adapts to the difference between room temperature and setpoint.
How to activate the Economy function?
Press the Menu key until ECO appears on the display. This function reduces the setpoint temperature (heating) or increases it (cooling) by a step defined by parameter P17. You can also activate it remotely via terminal 7.
What does the display « FIL-TER » mean?
It is a reminder to clean the fan coil filter. It appears after a certain number of operating hours (set by P32). Press any key to make it disappear. To reset the counter, hold the speed key for 10 seconds until "FIL-TER" reappears.
How to configure the thermostat for a 2-pipe or 4-pipe system?
Access the installer configuration: turn off the thermostat, then press and hold both On/Off and Menu keys until COn appears. Use the Menu key to navigate to parameter P01. Set it to 0 (2-pipe) or 1 (4-pipe) using the speed key. Press Menu until "End" to save.
Can I use an external temperature sensor?
Yes, an optional external NTC 4.7 kΩ sensor can be connected to terminals SA or 13 and 14. To activate it, set parameter P10 to 1 (external) in the installer configuration. The thermostat then uses this sensor instead of the internal one.
How to limit the setpoint adjustment range?
In the installer configuration, set parameters P12 (heating lower limit) and P13 (heating upper limit) between 5 °C and 35 °C. For cooling, use P14 and P15. The adjustment knob will not exceed these values.
What are the electrical connections for the fan?
The fan connects to terminals 1, 2, 3 (respective speeds) and 4 (common). These outputs are voltage-free (dry contacts) and support 3 A at 230 V~. Ensure that the thermostat power supply (terminals 5 and 6) respects polarity (L and N) at 230 V~.
How to use the « window contact » function?
Connect a window contact (normally closed) to terminals 12 and 14. In the installer configuration, set P07 to 3 (window contact: open interrupts regulation) or 4 (inverse logic). When the window is open, the output symbols flash and regulation is suspended.
What is the « minimum thermostat » function?
This function prevents the fan from operating if the heating water is not hot enough. You can use a water temperature sensor (set by P24) or a bimetallic contact (P07=2) connected to terminals 12-14. In heating mode, if the water temperature is below the threshold, the fan remains blocked (the fan blades flash).
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