Contents

Preface
Contents
1 Key to symbols and safety instructions
- 1.1 Key to symbols
- 1.2 Safety precautions
- 2 General information
  - 2.1 Energy efficiency
  - 2.2 Appliance identification and serial number
  - 2.3 Servicing
  - 2.4 Maintaining your appliance
  - 2.5 Benchmark standard
  - 2.6 User caution
- 3 Prepare for operation
  - 3.1 Open vented heating systems
  - 3.2 Sealed heating systems
    - 3.2.1 Checking the system pressure
    - 3.2.2 Constantly re-pressuring the system pressure
  - 3.3 Topping up the system pressure
- 4 Controls
  - 4.1 Operating the appliance
    - 4.1.1 Switching the appliance ON/Off
    - 4.1.2 Setting the appliance flow temperature
    - 4.1.3 Turning the central heating off during the summer
    - 4.1.4 Appliance frost protection
- 5 Clearances and ventilation information
  - 5.1 Appliance clearances
  - 5.2 Ventilation information
- 6 Malfunction or failure
  - 6.1 Fault finding
  - 6.2 Appliance reset
  - 6.3 Extreme cold weather
- 7 Environment protection/ disposal
- 8 Tips on energy saving
- 9 Your guarantee
  - 9.1 Guarantee registration
- 10 Glossary

Worcester Greenstar 9Ri 2018 User Instructions

Worcester Greenstar 9Ri 2018 Boiler manual cover

Pages 20

Year 2018

Language(s)

of 20

Worcester Greenstar 9Ri 2018 Boiler Specification

The Worcester Greenstar 9Ri 2018 Boiler is a compact, wall-mounted gas-fired condensing boiler designed for small to medium-sized properties. It is part of Worcester Bosch's Greenstar Ri series, which is renowned for reliability and efficiency. The 9Ri model boasts a heat output of 9kW, making it ideal for homes with up to 9 radiators. This boiler is engineered with a high-efficiency condensing system, achieving an impressive 92% efficiency rate, which qualifies it for an A-rating under the ErP Directive. It features a low energy pump that reduces electrical usage, contributing to lower energy bills and environmental impact.

The unit is compatible with a range of optional controls, including the Worcester Bosch smart thermostat, which allows for enhanced energy management and user convenience. The compact dimensions of this boiler, with a height of 600mm, width of 390mm, and depth of 270mm, enable easy installation in a variety of locations, such as kitchen cupboards or small utility rooms. The boiler's lightweight design, weighing approximately 22.6kg, further simplifies the installation process.

The 9Ri includes a user-friendly control panel with simple-to-use dials and an LED display for easy monitoring and adjustment of heating settings. It also features built-in frost protection, ensuring reliable operation in colder conditions. The boiler is compatible with a range of flue options, providing flexibility in installation and placement within the home. Additionally, the Greenstar 9Ri is backed by a warranty from Worcester Bosch, underscoring the brand's commitment to quality and customer satisfaction. This boiler stands out as an efficient and reliable heating solution for smaller properties, offering excellent performance and ease of use.

Worcester Greenstar 9Ri 2018 Boiler F.A.Q.

How can I reset my Worcester Greenstar 9Ri 2018 Boiler?

To reset your Worcester Greenstar 9Ri boiler, locate the reset button on the control panel. Press and hold the button for a few seconds until the reset light goes off. Release the button and wait for the boiler to restart.

What should I do if my boiler is not heating water properly?

First, check if the thermostat is set correctly and ensure that there is power to the boiler. If the issue persists, check the pressure gauge; it should be around 1 to 1.5 bar. If the pressure is low, you may need to top it up. If problems continue, contact a professional technician.

How often should I service my Worcester Greenstar 9Ri boiler?

It is recommended to service your boiler annually. Regular maintenance ensures efficiency, prolongs the lifespan of the boiler, and helps prevent unexpected breakdowns.

What can cause my boiler to leak water?

Common causes of boiler leaks include a faulty pressure valve, corroded pipes, or loose joints. Check for visible leaks and tighten any loose connections. If the issue persists, it may require a professional inspection.

Why does my boiler make banging noises?

Banging noises, often called "kettling," occur due to lime scale build-up or air in the system. Bleed the radiators to remove air and check for any blockages in the system. If the noise continues, consider contacting a heating engineer.

How do I adjust the water temperature on my Worcester Greenstar 9Ri?

To adjust the water temperature, locate the temperature control knob on the front of the boiler. Turn the knob to the desired temperature setting. Refer to the user manual for specific guidance on temperature ranges.

What should I do if the boiler displays an error code?

Consult the user manual for the specific error code displayed. Each code corresponds to a specific issue. Follow the recommended troubleshooting steps or contact a qualified technician for assistance.

Is it normal for my boiler to emit a slight smell?

A slight smell when you first use the boiler is normal due to dust burning off. However, persistent or strong odors may indicate a gas leak or other issue. In such cases, turn off the boiler and contact a professional immediately.

How do I bleed the radiators connected to my boiler?

Use a radiator key to open the bleed valve. Turn the key counterclockwise until you hear a hissing sound, which is the air escaping. Once water starts to flow steadily, close the valve by turning the key clockwise.

What is the ideal pressure for my Worcester Greenstar 9Ri boiler?

The ideal pressure for the Worcester Greenstar 9Ri boiler is between 1 and 1.5 bar when the system is cold. Check the pressure gauge and adjust as necessary, following the instructions in the user manual.