5550 - Uncategorized VIESSMANN - Free user manual and instructions
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| Product Type | Heating System Control Unit |
| Brand | Viessmann |
| Model | 5550 |
| Dimensions (H x W x D) | approx. 300 x 400 x 120 mm |
| Weight | approx. 2.5 kg |
| Power Supply | 230 V AC, 50 Hz |
| Power Consumption | max. 15 W |
| Display | Backlit LCD |
| Key Functions | Heating control, hot water scheduling, weather compensation |
| Compatibility | Viessmann heating systems with Vitotronic interface |
| Connectivity | Wired bus, optional KM-BUS |
| Programming | 7-day timer with up to 3 heating periods per day |
| Temperature Range | 5°C to 30°C (room temperature) |
| Protection Rating | IP20 |
| Operating Temperature | 0°C to 40°C |
| Maintenance | Clean with soft dry cloth; do not use liquids; annual check by technician |
| Safety Features | Overheat protection, frost protection, child lock |
| Spare Parts Availability | Via Viessmann service centers; part numbers listed in manual |
| Reparability | Modular design; user-replaceable fuse; professional repair for main board |
| Installation | Wall mounting; wiring by qualified electrician |
Frequently Asked Questions - 5550 VIESSMANN
How do I reset the Viessmann 5550 to factory settings?
Press and hold the Menu and OK buttons simultaneously for 5 seconds until the display shows 'Reset'. Confirm with OK.
Why is my heating not turning on even though the 5550 shows a heating schedule?
Check if the frost protection mode is active or if the room temperature setpoint is below current temperature. Also ensure the system is in heating mode (not summer mode).
Can I control the 5550 remotely?
The 5550 itself does not have built-in Wi-Fi. For remote control, you need a Viessmann Vitoconnect gateway connected to the KM-BUS interface.
What does the error code 'F0' mean on the display?
Error F0 indicates a sensor fault (usually outdoor or flow temperature sensor). Check sensor wiring and replace if necessary.
How often should I clean the Viessmann 5550?
Clean the casing with a soft dry cloth every few months. Avoid water or cleaning agents. For internal dust, contact a service technician.
Can I replace the fuse myself?
Yes, the fuse is located on the back panel. Use a 2A 250V fuse. Always disconnect power before replacing.
How do I set the clock on the 5550?
Press Menu, select Settings > Date/Time. Use the arrow keys to adjust and press OK to confirm.
Is the 5550 compatible with underfloor heating?
Yes, but you need to set the heating curve appropriately for low-temperature systems. Consult the manual for underfloor settings.
What warranty does the Viessmann 5550 have?
Standard warranty is 2 years from purchase date. Registration may extend to 5 years. Keep proof of purchase.
How do I update the firmware on the 5550?
Firmware updates are performed by a Viessmann service technician using a special tool. There is no user-update function.
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USER MANUAL 5550 VIESSMANN
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Product information
Brand : VIESSMANN
Model : 5550
Category : Uncategorized