Honeywell ST9100S User Manual

PLEASE RESPECT YOUR ENVIRONMENT!

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

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 permanently

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.

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.

Honeywell Control Systems Ltd.

Arlington Business Park,

Bracknell

Berkshire

RG12 1EB

50022737-003 A

Technical Help Desk: 08457 678999

www.honeywelluk.com

© 2007 Honeywell International Inc.

ST9100S – User Guide

1 Day Timer, 1 channel

With Boiler Service Reminder / Shut-down Feature

This document is to be left with the user

and forms part of a Home Information Pack

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 ST9100S 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 ST9100S

every time.

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

Boiler Service Reminder / Shut-down provides a reminder for when the boiler

service is due, and, if necessary, shuts down to ensure your safety.

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.