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Honeywell ST9500C User Manual

7 day programmer, 2 zone, 3 on/off per day
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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
50022737-007 A
Technical Help Desk: 08457 678999
www.honeywelluk.com
© 2007 Honeywell International Inc.
ST9500C – User Guide
7 Day Programmer, 2 zone, 3 on/off per day
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 confi rm 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.
Independent 7-day Programmes let you choose settings built into ST9500C for each
day of the week 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 ST9500C
every time.
Built-in Memory holds your programme indefi nitely - even if the mains power fails.
Energy Effi ciency 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 fi gure, so it is important to understand how your
controls can help to maximize energy effi ciency while maintaining your comfort.
Your Programmer 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 (if
you have stored hot water), 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 fi t 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.

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  Summary of Contents for Honeywell ST9500C

  • Page 1 1. Ensure your system contains a room thermostat and a hot water thermostat (if designs, unregistered designs, registered trade marks, unregistered trade marks and copyrights. you have stored hot water), and that both are set to appropriate temperature 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) levels: typically 20°C for the room temperature and between 55 - 60°C for the ST9500C – User Guide described. hot water temperature.
  • Page 2: Table Of Contents

    ST9500C Controls Layout Contents CONFIGURATION & SERVICE DATA WHAT IS A PROGRAMMER? Boiler & System Service Log General Description ..................3 The way to use a Programmer ................3 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. GETTING STARTED WITH YOUR ST9500C ZONE 1 ZONE 2 This information is important for a Home Information Pack. Step 1: Setting the Date & Time ..............4 Step 2: Running a Built-in Programme ............5 Service/Installation Installation/Service Telephone Number /...
  • Page 3: What Is A Programmer

    Your Honeywell ST9500C provides timing control for 2 zones within your central heating system, letting you set ON and OFF periods to suit your own lifestyle. The ST9500C 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.
  • Page 4: Getting Started With Your St9500C

    Step 1: Setting the Date & Time Your ST9500C 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™...
  • Page 5: Step 2: Running A Built-In Programme

    Step 2: Running a Built-in Programme With the date and time correct, your ST9500C Programmer will now be operating to the built-in programmes. These have been designed to provide heating in each zone at typical times throughout the day, but if you want to customise the settings, please...
  • Page 6: Programming Your St9500C

    PROGRAMMING YOUR ST9500C 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).
  • Page 7: Reviewing The Programme Times

    PROGRAMMING YOUR ST9500C Reviewing the Programme Times To review your zone 1 programme, move the slider to the ZONE 1 position. To review your zone 2 programme, move the slider to the ZONE 2 position. To review the programme times, press the button repeatedly.
  • Page 8: Copying One Day's Programme To Another Day

    OFF marker may start to flash. This indicates you have tried to set a time equal to one of the previous programme times. If this happens the ST9500C simply moves both times together as long as you continue to press the buttons.
  • Page 9: Exiting Zone 1 Programming Mode

    PROGRAMMING YOUR ST9500C Exiting ZONE 1 Programming Mode: To exit ZONE 1 programming mode, move the slider to the RUN position. This can be done at any time during the programming process, and any changes made and confirmed with the button will have been saved.
  • Page 10: Operating Your St9500C

    OPERATING YOUR ST9500C Choosing the Operating Mode (for Zone 1 and/or Zone 2) The operating mode may only be changed when the slider is set DAY/TIME to the RUN position. ZONE 1 A green INDICATOR LAMP shows when zone 1 or zone 2 is ZONE 2 switched ON.
  • Page 11: The Extra Hour Function

    OPERATING YOUR ST9500C The Extra Hour Function (for Zone 1 and/or Zone 2) The EXTRA HOUR buttons allow you to switch the zone ON for up to 3 extra hours without altering the programme. Pressing either button once will give one extra hour.
  • Page 12: Fine Tuning Your St9500C

    Changing from AM/PM Time Display to the 2 Hour Clock Your ST9500C can operate on the 12 hour AM/PM or 24 hour clock formats. To change the format, ensure the slider is in the RUN position then press and hold the buttons together for about 2 seconds.
  • Page 13 FINE TUNING YOUR ST9500C To Enter Installer Mode: a. Ensure the slider is in the RUN position, then press and hold buttons together for 8 seconds. Ignore the ‘NOT VALID’ message that is displayed for a few seconds. The message ‘SET UP MENU’ will show briefly, followed by ‘SET INSTALLER OK ?’...
  • Page 14: Faq & Troubleshooting

    What should I do if I get ‘lost’ while programming the ST9500C? The LoT™ Display on ST9500C will provide you with help and tips to work through the programming. Should you ever get ‘lost’, the simplest thing to do is to move the slider to the RUN position, and then move it back to the appropriate programming position where you got lost.
  • Page 15: Troubleshooting Guide

    FAQ AND TROUBLESHOOTING Troubleshooting Guide This is a quick guide to help you diagnose and cope with possible problems with ST9500C. For further assistance, please contact your Installer. Symptom Possible Cause Remedy ST9500C has a blank No power to the...
  • Page 18: Configuration & Service Data

    CONFIGURATION & SERVICE DATA Configuration Data (to be completed by Installer) The table below is for the Installer to complete to indicate how your ST9500C has been configured. Configurable Options Installer Configured Features tick appropriate box) 24hr or am/pm clock...