Worcester Greenstar 24i Junior 2009 User Instructions

Worcester Greenstar 24i Junior 2009 Boiler manual cover
Pages 20
Year 2009
Language(s)
English en

Worcester Greenstar 24i Junior 2009 Boiler Specification

The Worcester Greenstar 24i Junior is a compact, wall-mounted, gas-fired condensing boiler designed for efficiency and reliability. Introduced in 2009, it is part of the Greenstar range known for its environmentally friendly performance and suitability for small to medium-sized homes. The boiler operates on natural gas and features a SEDBUK 2005 efficiency rating of 90.1%, highlighting its high energy efficiency.

This model provides a central heating output of 24 kW and a domestic hot water (DHW) flow rate of up to 9.8 liters per minute at a 35-degree temperature rise. It is equipped with a low NOx and CO emissions system, complying with environmental standards. The 24i Junior utilizes a fan-assisted flue system, allowing flexible installation options with flue lengths up to 4 meters.

This boiler is fitted with a user-friendly interface, including simple controls and an LED display for operational status and diagnostics. It incorporates advanced heat exchanger technology to maximize heat transfer and reduce energy consumption. The unit also supports optional weather compensation controls for enhanced efficiency.

The Worcester Greenstar 24i Junior features built-in frost protection, making it suitable for installation in various locations, including unheated areas. It is compatible with a range of Worcester Bosch controls and accessories, enhancing its functionality and ease of use. The compact dimensions of this model, measuring 710 x 400 x 330 mm, contribute to its versatility in installation, making it an ideal choice for homes with limited space. With its combination of efficiency, performance, and environmental consideration, the Greenstar 24i Junior remains a reliable choice for residential heating and hot water needs.

Worcester Greenstar 24i Junior 2009 Boiler F.A.Q.

How do I reset the Worcester Greenstar 24i Junior 2009 Boiler?

To reset the boiler, press the reset button located on the control panel. Hold it for a few seconds until the reset light stops blinking.

What should I do if the boiler is not heating water?

Check if the boiler pressure is between 1 and 1.5 bar. If the pressure is low, top it up using the filling loop. Ensure there are no error codes on the display.

How often should I service my Worcester Greenstar 24i Junior 2009 Boiler?

It is recommended to service your boiler annually to ensure it operates efficiently and safely. Schedule this with a certified engineer.

What could cause my boiler to make a banging noise?

A banging noise, also known as kettling, can be caused by limescale buildup in the heat exchanger. It's advisable to contact a professional engineer for descaling.

How can I increase the water pressure in my boiler?

Locate the filling loop beneath the boiler and slowly open the valves to allow water into the system. Monitor the pressure gauge and close the valves once it reaches 1 to 1.5 bar.

Why is the boiler not igniting?

Check the gas supply to ensure it is turned on. Inspect for any error codes and reset the boiler if necessary. If the issue persists, contact a professional.

What is the recommended temperature setting for my boiler?

For optimal efficiency, set the boiler temperature to 60-65°C for hot water and 75°C for central heating. Adjust based on your comfort and energy efficiency needs.

How do I bleed a radiator connected to the Worcester Greenstar 24i Junior 2009?

Turn off the heating system and use a radiator key to open the bleed valve. Allow trapped air to escape until water begins to flow steadily, then close the valve.

What maintenance tasks can I perform myself on my boiler?

Regularly check the pressure gauge, bleed radiators, and ensure the area around the boiler is clear. For more complex maintenance, consult a certified technician.

Why does my boiler keep losing pressure?

Pressure loss can be due to leaks in the system, a faulty pressure relief valve, or air in the system. Inspect for visible leaks and consult an engineer if the issue continues.