Worcester MT20 2019 Installation and Operating Manual

Pages 12

Year 2019

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Worcester MT20 2019 Timer Specification

The Worcester MT20 2019 Timer is a sophisticated yet user-friendly control device designed for managing central heating systems. It features a 24-hour mechanical timer, allowing users to conveniently set on and off periods throughout the day. The timer is housed in a compact and durable casing, making it ideal for both residential and small commercial applications. It operates by integrating directly with compatible Worcester heating systems, ensuring seamless communication and reliable performance. The MT20 is engineered for straightforward installation, typically mounted onto the boiler's fascia, and is powered directly from the boiler, eliminating the need for additional wiring or power sources.

The device's interface is intuitive, featuring a rotating dial with clearly marked segments that users can easily adjust to set desired heating periods. Each segment represents a 15-minute interval, providing precise control over heating schedules. The MT20 also includes a manual override feature, allowing users to switch the heating on or off outside of the programmed times without disrupting the existing schedule. This functionality is particularly useful for unexpected temperature changes or irregular occupancy patterns.

The Worcester MT20 2019 Timer is designed with energy efficiency in mind, enabling users to optimize heating schedules and potentially reduce energy consumption and costs. Its robust construction ensures longevity and reliable operation, making it a practical choice for enhancing the functionality of Worcester boiler systems. Overall, the MT20 Timer combines simplicity, efficiency, and reliability, catering to users who require effective time-based control of their heating systems.

Worcester MT20 2019 Timer F.A.Q.

How do I set the current time on a Worcester MT20 2019 Timer?

To set the current time, rotate the dial clockwise until the correct time is aligned with the reference mark. Ensure that the time is set to either AM or PM as required.

Why is my Worcester MT20 Timer not turning on the heating?

Check if the timer is set to the correct program and that the time is accurately set. Ensure that the system is not in 'OFF' mode and that there is power supplied to the boiler.

How can I program the Worcester MT20 Timer for daily heating schedules?

Use the tappets around the edge of the dial to set desired on and off times. Push the tappets out for 'ON' periods and in for 'OFF' periods, ensuring the timer is set to 'Timed' mode.

What should I do if the timer dial is not rotating?

First, check the power supply to ensure the timer is receiving electricity. If the power supply is fine, the timer may need to be reset or replaced if it's faulty.

How do I reset the Worcester MT20 Timer?

To reset the timer, turn off the power supply for about 10 seconds and then turn it back on. Re-set the current time and schedule as needed.

Can the Worcester MT20 Timer be used with a combi boiler?

Yes, the Worcester MT20 Timer can be used with combi boilers. Ensure it is correctly installed and configured according to the boiler's requirements.

What maintenance does the Worcester MT20 Timer require?

The MT20 Timer requires minimal maintenance. Regularly check for dust and debris around the timer and ensure all settings are correct. Annual inspections by a professional are recommended.

How do I switch between manual and automatic modes on the MT20 Timer?

To switch modes, use the mode selector switch on the timer. Set it to 'Manual' for continuous operation or 'Timed' for scheduled heating.

Why is there a clicking noise coming from my Worcester MT20 Timer?

The clicking noise is typically the sound of the timer switching between on and off periods. If the noise is excessive, inspect for any loose parts or consider professional servicing.

How can I extend the heating period without changing the schedule?

Use the override function to temporarily extend the heating period. This can be done by adjusting the manual override switch on the timer to the 'ON' position.