Danfoss 103E7
Background
The Danfoss 103E7 is a range, which includes this 7-Day Electronic Timeswitch designed for controlling the temperature in heating systems. These thermostats are programmable, which means you can set them to turn the heating on and off at specific times of the day to suit your schedule.
This particular model is a 7-day programmable room thermostat with a large, easy-to-read digital display. It offers a range of features such as frost protection, holiday mode, and an adjustable temperature range.
The Danfoss Randall 103E7 range is known for its accuracy and reliability, and it is compatible with a wide range of heating systems, including gas, oil, and electric boilers. It is also easy to install and use, making it a popular choice for both homeowners and professional installers.
If you are considering the Danfoss 103E7 range for your heating system, it is important to ensure that it is compatible with your particular setup. You may also want to consider consulting a professional installer to ensure that it is installed correctly and to take advantage of any additional features that the thermostat may offer.
How to operate
- Turn on the power: Make sure the power supply is connected to the thermostat.
- Set the clock: The thermostat has an internal clock that needs to be set before programming. To set the clock, press and hold the ‘SET’ button until the clock display flashes. Use the ‘+’ and ‘-‘ buttons to set the time and press ‘SET’ to confirm.
- Set the program: The thermostat allows you to set a different temperature for different times of the day. To set the program, press the ‘PROG’ button and use the ‘+’ and ‘-‘ buttons to set the desired temperature for each time period. Press ‘PROG’ again to save the program.
- Manual override: If you need to change the temperature temporarily, you can use the manual override function. Press the ‘OVERRIDE’ button, and use the ‘+’ and ‘-‘ buttons to set the desired temperature. The override will last for a set time period, after which the thermostat will return to the programmed temperature.
- Holiday mode: If you are going away for an extended period of time, you can use the holiday mode to save energy. Press and hold the ‘SET’ button until the display shows ‘Prg OFF’. Use the ‘+’ and ‘-‘ buttons to set the desired temperature, and press ‘SET’ to confirm.
- Troubleshooting: If you encounter any issues with the thermostat, refer to the user manual for troubleshooting steps.
Please note that these are just the basic steps, and the specific operation may vary depending on the model and version of the thermostat. For more detailed information, please refer to the user manual that came with your thermostat.
Technical information
| SPECIFICATION | |
|---|---|
| Brand | Danfoss |
| Central heating control type | 7-Day Electronic Timeswitch |
| Heating system compatibility | Compatible with a wide range of heating systems, including: Gas and oil-fired boilers Electric heating systems Warm air systems Hydronic heating systems Radiant heating systems Heat pump systems Zone control systems |
| Control operation | – Can be programmed for multiple on/off settings throughout the day, and also includes a manual override feature for temporary adjustments. |
| Temperature range | 0°C to 50°C |
| Display type | Backlit LCD with easy-to-read text and symbols. |
| Hertz (Hz) | Designed to operate on a frequency of 50Hz. This is the standard frequency used for power distribution in many parts of the world, including Europe, Asia, Africa, and Australia. |
| Switch rating | The Danfoss Randall 103E7 electronic programmer has a switching capability of 2 amps resistive or 1 amp inductive (cos Ø 0.6). This means that it is capable of switching loads with a maximum current of 2 amps resistive or 1 amp inductive, with a power factor of 0.6 or greater. It’s important to note that the switch rating of the 103E7 is based on its maximum current capability, and not its voltage rating. The 103E7 is designed to operate on a 230V AC, 50Hz electrical supply, but the switch rating is determined by the maximum current that the device can safely switch. If you are planning to connect the 103E7 to a load that exceeds its maximum switch rating, it’s recommended that you use a suitable relay or contactor to control the load, rather than connecting it directly to the 103E7. This can help ensure safe and reliable operation of the device and the connected load. |
| Max. load (Inductive) | The Danfoss Randall 103E7 electronic programmer has a maximum inductive load rating of 1 amp with a power factor of 0.6 or greater. This means that it is designed to safely switch loads with a maximum inductive current of 1 amp, such as those found in some types of motors and transformers. It’s important to note that the maximum inductive load rating of the 103E7 is determined by its internal switch rating, and is not related to the voltage rating of the device. The 103E7 is designed to operate on a 230V AC, 50Hz electrical supply, but its inductive load rating is determined by its ability to safely switch current with a power factor of 0.6 or greater. |
| Max. load (Resistive) | The Danfoss Randall 103E7 electronic programmer has a maximum resistive load rating of 2 amps. This means that it is designed to safely switch loads with a maximum resistive current of 2 amps, such as those found in heating elements and some types of lighting. It’s important to note that the maximum resistive load rating of the 103E7 is determined by its internal switch rating, and is not related to the voltage rating of the device. The 103E7 is designed to operate on a 230V AC, 50Hz electrical supply, but its resistive load rating is determined by its ability to safely switch current without any power factor considerations. If you are planning to connect a resistive load to the 103E7, it’s important to ensure that the maximum current of the load does not exceed the device’s resistive load rating. Connecting a load with a higher current than the device’s maximum rating can result in damage to the device or a potentially dangerous situation. |
| Power consumption | Approximately 2W when operating. |
| Dimensions | 80mm (height) x 142mm (width) x 30mm (depth). |
| Battery backup | 100-hour battery backup to ensure uninterrupted operation during power outages. |
| Programmer Voltage | 230V AC. This is the standard voltage used for power distribution in many parts of the world, including Europe, Asia, Africa, and Australia. |
| Smart compatibility | No. |
| Terminal capacity | The Danfoss Randall 103E7 electronic programmer has four terminal connections: L, N, 1, and 2. The L and N terminals are used to connect the device to the electrical supply, and are capable of accepting wires with a maximum diameter of 2.5 mm². The 1 and 2 terminals are used to connect the load to the device, and are capable of accepting wires with a maximum diameter of 1.5 mm². It’s important to note that the maximum wire diameter ratings are designed to ensure safe and reliable operation of the device. If you need to connect wires with a larger diameter than those listed, it may be necessary to use additional connectors or terminal blocks. |