Honeywell ST9100A User Manual

ST9100A – User Guide

1 Day Timer, 1 channel

Honeywell Control Systems Ltd.

Arlington Business Park,

Bracknell

Berkshire

RG12 1EB

Technical Help Desk: 08457 678999

www.honeywelluk.com

50022737-001 B

Features

Easy to use slider and buttons combined with ‘LoT’™ Technology and an

‘OK’ button, allows you to conﬁrm changes and stay in control.

LoT™ Technology provides you with informative ‘on-screen’ feedback and operational

assistance as and when required.

Extra Large LCD (Liquid Crystal Display) with Backlight provides added user friendliness and clearer viewing – even in the dark.

1-day Programme lets you choose settings built into ST9100A to match your lifestyle, while maximising energy savings, or alter them to your personal settings.

Automatic Summer/Winter Time Change will adjust the clock forward and backward automatically when the clocks change, saving you having to change your ST9100A every time.

Built-in Memory holds your programme indeﬁnitely - even if the mains power fails.

Energy Efﬁciency and the Environment

Home energy use is responsible for more than ¼ of the total UK carbon emissions which contribute to climate change. Heating and hot water systems based on boilers account for of this ﬁgure, so it is important to understand how your controls can help to maximize energy efﬁciency while maintaining your comfort.

Your Timer should be used in conjunction with appropriate temperature controls. In order to save energy the following general points should be observed:

1. Ensure your system contains a room thermostat and a hot water thermostat, and that both are set to appropriate temperature levels: typically 20°C for the room temperature and between 55 - 60°C for the hot water temperature.

2. Programme your heating and hot water to be off when you are not in the house. If you are concerned about possible frost damage to any exposed pipe work, it is advisable to ﬁt a frost protection system – your installer can advise you about this.

3. Think about how you use your domestic hot water – if you have a storage system, it is not necessary to have this switched on all the time, even when you are in the house.

4. Consider the heat up times required for your central heating. Every home responds differently when the heating is switched on. Adjust the start time so that you are not cold when you get up in the morning. A shorter heat up time is required for other heating periods.

5. In the evening, when the house is up to temperature, it is often possible to switch off the heating up to an hour before you go to bed, without any noticeable reduction in comfort.

PLEASE RESPECT YOUR ENVIRONMENT!

Take care to dispose of this product and any packaging or literature in an appropriate way

This product and its associated documentation and packaging are protected by various intellectual property rights belonging to Honeywell Inc. and its subsidiaries and existing under the laws of the UK and other countries. These intellectual and property rights may include patent applications, registered designs, unregistered designs, registered trade marks, unregistered trade marks and copyrights.

Honeywell reserves the right to modify this document, product and functionality without notice. This document replaces any previously issued instructions and is only applicable to the product(s) described.

This product has been designed for applications as described within this document. For use outside of the scope as described herein, refer to Honeywell for guidance. Honeywell cannot be held responsible for misapplication of the product(s) described within this document.

Manufactured for and on behalf of the Environment and Combustion Controls Division of Honeywell Technologies Sarl, Ecublens, Route du Bois 37, Switzerland by its Authorised Representative Honeywell Inc.

This document is to be left with the user

and forms part of a Home Information Pack

WHAT IS A PROGRAMMER?

...an Explanation for Householders

(as recommended by the Energy Savings Trust)

Programmers allow you to set ‘On’ and ‘Off’ time periods. Some models switch the central heating and domestic hot water on and off at the same time, while others allow the domestic hot water and heating to come on and go off at different times. Set the ‘On’ and ‘Off’ time periods to suit your own lifestyle. On some programmers you must also set whether you want the heating and hot water to run continuously, run under the chosen ‘On’ and ‘Off’ heating periods, or be per manently off. The time on the programmer must be correct. Some types have to be adjusted in spring and autumn at the changes between Greenwich Mean Time and British Summer Time. You may be able to temporarily adjust the heating programme, for example, ‘Override’, ‘Advance’, or ‘Boost’. These are explained in the manufacturer’s instructions. The heating will not work if the room thermostat has switched the heating off. And, if you have a hot-water cylinder, the water heating will not work if the cylinder thermostat detects that the hot water has reached the correct temperature.

EXTRA HOUR

OVERRIDE

DAY/TIME

PROGRAMME

RUN

ST91 00A

Contents

WHAT IS A TIMER?

General Description ........................................................................................3

The way to use a Timer ...................................................................................3

GETTING STARTED WITH YOUR ST9100A

Step 1: Setting the Date & Time .....................................................................4

Step 2: Running a Built-in Programme ...........................................................5

PROGRAMMING YOUR ST9100A

The Built-in Programmes ................................................................................6

Your Personal Programme ..............................................................................6

Reviewing the Programme Times ...................................................................7

Modifying the Programme ..............................................................................7

Exiting Programming Mode ...................................................................9

Disabling/Enabling Time Periods ...................................................................9

OPERATING YOUR ST9100A

Choosing the Operating Mode .....................................................................10

Override the Operation Without Changing the Programme .........................11

The Extra Hour Function ...............................................................................11

FINE TUNING YOUR ST9100A

Changing From AM/PM Time display to the 24-hour Clock .........................12

Changing the Installer Parameters ...............................................................12

FAQ & TROUBLESHOOTING

How do I set the time only, if the ST9100A clock is not correct? ..................14

What do I do when the clocks go back in October and forward in March? .14

What should I do if I get ‘lost’ while programming the ST9100A? ................14

What happens if there is a power failure? ....................................................14

Troubleshooting Guide .................................................................................15

CONFIGURATION & SERVICE DATA

Conﬁguration Data (to be completed by Installer) .......................................18

Boiler & System Service Log ........................................................................19

ST9100A Controls Layout

Time Display

LoT™ Technology Display

Programme Time Markers

Operating Mode Indicator

Extra Hour Button

Indicator Lamp

Override Button

Slider

Operating Mode Button

OK/Next Button

Clock – and + Buttons

1 2 3 4

CONFIGURATION & SERVICE DATA

Boiler & System Service Log

The space below can be used to provide a record of boiler & system services and the names and contact numbers of the Installer and Service Personnel.

This information is important for a Home Information Pack.

Service/Installation Date

Installation/Service Engineer

Telephone Number / Contact Details

Keep this document in a Home Information Pack

WHAT IS A TIMER?

General Description

Your Honeywell ST9100A provides timing control for your central heating system, letting you set ON and OFF periods to suit your own lifestyle.

The ST9100A does not directly control the temperature but works together with other temperature controls, such as room thermostats, to control your heating system in your home.

ST9100A has 1-day programming and 2 on/off periods per day, making it very simple to use.

The following instructions explain how to programme and use the ST9100A to provide the most home comfort at the least cost.

The way to use a Timer

Think about the time periods when you are typically in the house and when you are not. These are the times you should use as the basis for the programmes. It will be necessary to allow some heat-up time for the heating system after periods when it has been off – this would typically be 1 - 1½ hours, depending on your house and your preferences.

Other features are commonly available on the Timer to enhance comfort and convenience, for example, OVERRIDE, EXTRA HOUR, and MODE buttons.

A typical use of the OVERRIDE feature is when you return home unexpectedly for the rest of the day and the heating is off. Just press the OVERRIDE button and the heating will come on until the next programme time, at which point it will follow the normal programme. The advantage here is that you do not have to remember to switch off because the normal time programme does this for you.

A typical use of the EXTRA HOUR button would be if you returned to the house for a short period when the heating was off. Pressing the EXTRA HOUR button gives you 1, 2, or 3 hours of heating, exactly when you need it. Another typical use is when the heating is already on and you want it to stay on a little longer - just press EXTRA HOUR and, for that day only, an hour will be added to the end of the time at which heating normally goes off.

The MODE button allows you to select how you want to operate your heating. The most obvious use is to switch heating OFF during the summer months, but you may also use this feature if you take a mid-week day off work, you can then set the MODE to ONCE to keep the system ON during the day from the ﬁrst programmed ON time till the last programmed OFF time.

Your ST9100A should have been set up to work correctly when it was installed. However, the following will show you how you can modify your settings to meet your particular lifestyle.

To assist you with programming and everyday use your ST9100A will display text messages at every stage to help you get the most out of your central heating system. The ST9100A uses LoT™ Technology to constantly update the display to give you feedback about what is required.

Step 1: Setting the Date & Time

Your ST9100A had the date and time set at the factory, and these are normally maintained by a backup battery in the event of power failures. If you wish to change the date or time, or if the LoT™ Display shows the message ‘SET DATE + TIME’ just follow the instructions below. Otherwise, go to Step 2.

a. Move the slider to the DAY/TIME position. The message ‘SET DATE + TIME’ will

show brieﬂy on the screen, followed by ‘SET THE DAY’, and the day of the month will now be ﬂashing to indicate it can be changed.

b. To change the day of the month, press the or buttons until the correct

day is shown. Each press of the button will change the date by one day. As soon as a change has been made, the message ‘IS DAY OK?’ will be displayed. Once the correct day is reached, press the green button to conﬁrm, and move to the next step. If you do not need to make a change, just press the button immediately and this will move you to the next step.

c. The month digits will now be ﬂashing and ‘SET THE MONTH’ will be displayed. To

change the month, press the or buttons until the correct month is shown. The message ‘IS MONTH OK?’ will be displayed. Press the green button to conﬁrm the month is correct, and move to the next step.

GETTING STARTED WITH YOUR ST9100A

DAY/TIME

PROGRAMME

RUN

GETTING STARTED WITH YOUR ST9100A

d. The year digits will now be ﬂashing and ‘SET THE YEAR’ will be displayed. To

change the year, press the or buttons until the correct year is shown. The message ‘IS YEAR OK?’ will be displayed. Press the green button to conﬁrm the year is correct. If you have made a change, and the date is a valid date, the message ‘DATE SAVED’ will show, and you can move to the next step. If the date you set was not valid, for example 31 September, the message ‘INVALID’ will show and you will be returned to the start of the date setting operation.

e. The time will now be ﬂashing and the message ‘SET THE TIME’ will be displayed.

To change the time, press the or buttons until the correct time is shown. Each press of the button will change the time by one minute. Holding the button down for more than a few seconds will change the time slowly at ﬁrst, then quickly. The message ‘IS TIME OK?’ will be displayed. Press the green button to conﬁrm the time is correct. If you have made a change, the message ‘TIME SAVED’ will show, followed quickly by ‘DATE + TIME COMPLETE’.

f. Move the slider to the RUN position, to complete setting the date and time.

Note: if the slider is moved at any time before the date and time have been set correctly, the message ‘DATE UNCHANGED’ will be displayed brieﬂy, and your changes will not be saved.

Step 2: Running a Built-in Programme

With the date and time correct, your ST9100A Timer will now be operating to the built-in programme. This has been designed to provide heating at typical times throughout the day, but if you want to customise the settings, please see the next section ‘PROGRAMMING YOUR ST9100A’ (page 6).

PROGRAMMING YOUR ST9100A

The Built-in Programmes

The built-in programmes give you a starting point that you can personalise to your own requirements. Your Installer should have selected one and ticked the box alongside it. If there is no tick, the product normally leaves the factory with Proﬁle A installed, but it is a simple matter to select one of the other proﬁles (see Changing

the Installer Parameters, page 12).

Your Personal Programme

The table below has been left blank for you to record your own personal programme. For ease of use, your ST9100A is supplied as standard with only 2 on/off’s enabled. To enable ON/OFF period 3 see Fine Tuning your ST9100A (page 12).

ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3

Built-in Programme (Proﬁle C)

ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3

6:30am 7:30am 5:00pm 10:00pm Not used Not used

Built-in Programme (Proﬁle b)

ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3

6:30am 9:30am 4:30pm 11:00pm Not used Not used

Built-in Programme (Proﬁle A)

ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3

6:30am 8:30am 4:30pm 10:30pm Not used Not used

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