20/80 RSS Flowmatic - Central heating boiler Vokèra - Free user manual and instructions
Find the device manual for free 20/80 RSS Flowmatic Vokèra in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | Central heating boiler (condensing) |
| Model | 20/80 RSS Flowmatic |
| Brand | Vokèra |
| Power Output | 20 kW (heating) |
| Flow Rate | 80 L/min (hot water) |
| Fuel Type | Natural gas / LPG |
| Efficiency | Up to 94% (condensing) |
| Energy Class | A (ERP directive) |
| Dimensions (HxWxD) | 800 x 440 x 380 mm |
| Weight | 35 kg |
| Mounting Type | Wall-hung |
| Water Connection | 15 mm (flow and return) |
| Gas Connection | 15 mm (G 1/2) |
| Flue Type | Room-sealed (concentric) |
| Control System | Electronic with flowmatic modulation |
| Safety Features | Flame supervision, overheat protection, frost protection |
| Maintenance | Annual service recommended; filter cleaning every 6 months |
| Spare Parts Availability | Common parts (pump, fan, PCB) widely available |
| Warranty | 2 years (standard) |
Frequently Asked Questions - 20/80 RSS Flowmatic Vokèra
How do I reset the boiler after a fault?
Press the reset button on the front panel for 3 seconds. If the fault persists, check the pressure gauge and refer to the manual.
What is the ideal water pressure for operation?
The system should have a pressure between 1.0 and 1.5 bar when cold. Below 0.5 bar, use the filling loop to add water.
Can I use this boiler for underfloor heating?
Yes, the 20/80 RSS Flowmatic can be used with underfloor heating, but a mixing valve may be required to lower the flow temperature.
Why does the boiler keep turning off?
Possible causes include low water pressure, blocked flue, or a faulty thermistor. Check error code and consult the manual.
How often should I service the boiler?
An annual service by a Gas Safe registered engineer is recommended to maintain safety and efficiency.
Does the boiler provide domestic hot water?
No, this model is a central heating boiler only. For hot water, a separate cylinder or combi boiler is needed.
What type of flue is required?
The boiler requires a room-sealed concentric flue (60/100 mm). Ensure the flue termination is clear of obstructions.
Can I install the boiler in a cupboard?
Yes, provided there is adequate ventilation and access for maintenance. Minimum clearance of 600 mm at the front.
Why is the radiator not heating up fully?
Check for air in the system (bleed radiators), ensure radiator valves are fully open, and verify the boiler pump is running.
What does the 'Flowmatic' feature do?
Flowmatic automatically adjusts the pump speed to maintain optimal flow rate and reduce energy consumption.
User questions about 20/80 RSS Flowmatic Vokèra
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Central heating boiler in PDF format for free! Find your manual 20/80 RSS Flowmatic - Vokèra and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. 20/80 RSS Flowmatic by Vokèra.