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Danfoss FP735SI Electronic 3 Channel Programmer - 087N789000

Danfoss FP735SI Electronic 3 Channel Programmer - 087N789000

The Danfoss programmer has three channels and outputs for controlling on and off periods for room ...

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Product Information

Full details

This guide is for homeowners and heating engineers seeking to optimize their heating and hot water systems using the Danfoss FP735Si programmer. It offers independent control of hot water and two heating zones, providing flexibility and efficiency. However, it's essential to understand the basic wiring and setup to avoid operational issues.

All features

Model Part Number087N789000
BrandDanfoss

Extended Product Information

FAQs

How do I set the time?

Follow the instructions in the user manual for setting the current time and date on the programmer.

How do I change the heating schedule?

Use the program buttons to navigate the channels and set your desired on/off times for each heating zone and hot water.

Can I override the current settings?

Yes, there is usually an override function to temporarily change the settings.

What does Part L compliance mean?

Part L compliance means that the programmer meets the requirements for energy efficiency.

What should I do if the display shows an error?

Refer to the troubleshooting section of the user manual or contact a qualified heating engineer.

Can I control the programmer remotely?

The FP735Si does not have remote control capabilities. It is designed for local control.

Troubleshooting

The heating or hot water isn't turning on.

Check the power supply to the programmer. Verify the programmed times are correct, and the override switch is not engaged.

The display is blank.

Check the fuse and power connection. If the display is still blank, consult a qualified technician.

The system isn't responding to the programmed times.

Ensure the wiring is correct. Check for any manual overrides. Consult the user manual for troubleshooting guides.

Pros and Cons

Pros

  • Independent control of hot water and two heating zones.
  • Compliant with Part L regulations.
  • Offers up to six time changes per day for each channel.
  • Easy to program and adjust settings.

Cons

  • Requires proper wiring and installation for optimal functionality.
  • May require professional installation for some users.
  • Limited to three zones only.

Setup, Compatibility & Care

  1. Installation: The FP735Si must be installed by a qualified professional to ensure correct wiring and system compatibility.
  2. Compatibility: It is designed to work with most domestic heating systems that require independent control of hot water and heating zones.
  3. Power Supply: Ensure the programmer is connected to a stable power supply.
  4. Wiring: Refer to the wiring diagrams provided with the unit. Incorrect wiring can cause operational issues.
  5. Programming: After installation, program the desired on/off times for each channel according to your needs.
  6. Maintenance: Regularly check the display and ensure the settings are correct. There is no routine maintenance required.

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