RFREC - Heating controller DIMPLEX - Free user manual and instructions
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| Product Type | Programmable Heating Controller |
| Brand | Dimplex |
| Model | RFREC |
| Application | Room temperature control for electric or water-based heating systems |
| Display Type | LCD with backlight |
| Control Interface | Push buttons |
| Power Supply | 2 x AA batteries (1.5 V) |
| Battery Life | Up to 1 year under normal use |
| Temperature Range | 5–35 °C |
| Programming | 7-day programmable with up to 6 time periods per day |
| Operating Modes | Comfort, Eco, Frost Protection, Holiday |
| Sensor Type | Built-in thermistor |
| Output | Relay output (Normally Open), max 16 A / 230 V AC |
| Mounting | Wall mounting (suitable for standard back boxes) |
| Dimensions (W x H x D) | 122 x 82 x 28 mm |
| Weight | 160 g (without batteries) |
| Safety | Double insulated, CE marked |
| Maintenance | Clean the outer surface with a soft dry cloth; do not use water or solvents |
| Spare Parts and Repairability | Batteries and wall plate are user-replaceable; internal repairs should be carried out by a qualified technician |
Frequently Asked Questions - RFREC DIMPLEX
How do I set the current time and day on my Dimplex RFREC?
To set the time and day, press the Menu button and navigate to the Clock setting using the arrow keys. Use the + and - buttons to adjust the hours, minutes, and day of the week, then confirm with OK or Save.
What is the difference between Comfort and Eco modes?
Comfort mode maintains the room temperature at your desired comfort level (e.g., 21 °C) during occupied periods. Eco mode lowers the target temperature to an energy-saving level (e.g., 17 °C) when you are away or asleep. The RFREC automatically switches between these modes according to your weekly program.
How do I program the weekly heating schedule?
Access the Programming menu on your RFREC, select the day or group of days, and set up to 6 time periods per day. For each period, choose the desired temperature and whether Comfort or Eco mode should apply. Confirm your schedule to activate it.
Can I use the RFREC with a gas boiler or an electric heater?
Yes, the RFREC is compatible with most heating systems that accept a volt-free relay switch. If your gas boiler or electric heater is controlled by a thermostat, you can connect the RFREC output to it. For high-voltage systems, ensure the relay rating (max 16 A) is sufficient.
How do I replace the batteries and what type do I need?
Remove the front cover of the RFREC by sliding it upwards. Replace the two AA alkaline batteries with new ones, observing correct polarity. The device retains your program in memory for a short period during battery replacement.
Why is the display showing a snowflake symbol?
The snowflake symbol indicates that Frost Protection mode is active. Your controller is maintaining a minimum temperature (usually 5 °C) to prevent pipes from freezing while the heating is otherwise off. You can disable this mode through the mode selection menu.
How do I activate the Holiday mode?
Press the Mode button until the Holiday icon appears. Use the arrow keys to set the number of days you will be away, and confirm. The RFREC will maintain frost protection until the holiday period ends, then resume the normal program.
What should I do if the controller is not heating?
First, check the display for error codes or a blank screen, indicating dead batteries. Replace batteries if needed. Ensure the target temperature is higher than the current room temperature. Check the output connection and make sure the boiler/heater is powered. If the problem persists, reset the device or contact a technician.
Is the device suitable for underfloor heating systems?
Yes, the RFREC can be used to control underfloor heating zones, provided the relay output is connected to the floor heating actuator or manifold. However, for large zones or floor sensors, consider using a dedicated floor thermostat to avoid overheating. The RFREC uses room air temperature only.
How do I perform a factory reset?
To reset the RFREC to default settings, access the Menu, scroll to Settings, and select Factory Reset. Confirm your choice with OK. The device will restart and erase all personalized programs, restoring the factory defaults.
User questions about RFREC DIMPLEX
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USER MANUAL RFREC DIMPLEX
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Product information
Brand : DIMPLEX
Model : RFREC
Category : Heating controller