Honeywell ST9400C User Manual
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Honeywell ST9400C — User Guide 7 day Programmer 2 channel, 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 ‘Lol’™ 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 Independent 7-day Heating & Hot Water Programmes let you choose settings built into ST9400C for cach day of the weck 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 ST9400C 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 4 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 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, 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. 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. 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. Consider the heat up times required for your central healing. 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. 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. ST9400C Controls Layout 20 8 HOT WATER | SAT io We [) EXTRA HOUR B | tel AM OVERRIDE ®— MS = 9 178 Honeywell CJ) =" nav TIME (E - - НОТ WATER 10 1 @) HEATING RUN 7 ST9400C 6 12 11 4) Hot Water Operating Mode Indicator 11, Heating Operating Mode Button 2) Time Display 12 OK/Next Button (E) LoT™ Technology Display (E) Clock - and + Buttons 4 Programme Time Markers 14, Hot Water Operating Mode Button €) Day of Week Indicator 15) Holiday Bulton О) Heating Operating Mode Indicator HP Copy Day Button 23 Heating Extra Hour Button 17) Next Day Button €) Heating Indicator Lamp €) Hot Water Override Button ©) Heating Override Button €) Hot Water Indicator Lamp 10) Slider En) Hol Water Extra Hour Bullon Keep this document in a Home Information Pack Contents WHAT IS A PROGRAMMER? Générer A AA A add Bea ee ae The way to use a Programmer GETTING STARTED WITH YOUR ST9400C step: 1: бота the Dale € Time iii ana 4 step 2: Running а Built-in Programme ............... ини нии ити нинининькнннин к 9 PROGRAMMING YOUR 5T9400C The BUT PO AMMIRS iii ado Là 03 Your Personal Programme .........0.0..0....: eee recover] 6 Reviewing ihe Programme: lines... Î Moditying the Hot Water Programme issues / Copying one day's Programme to another day ...............иииинииинннь O Programming a Different Day... ss 8 Exiting HOT WATER Programming Mode ........o..o.cccccccccccononcccconcncoroncooos 9 Modifying the Heating Рюдгатте.......... ss 9 EXITING HEATING Programming Мос@...... ини еек нана нина кения ирина y Disaoling/Enabling Time Pa e 9 OPERATING YOUR ST9400C Choosing the Operating Mode.. se И \ ©; Override the Operation Without Changing the Programmes.. REN 10 The Extra Hour Function 11 Hie MORE UCI su u 11 FINE TUNING YOUR ST9400C Changing From AM/PM Time display to the 24-hour Clock 00.0.0... 12 Changing the Installer Parameters..…….. ss une 12 FAQ & TROUBLESHOOTING How do | set the time only, if the ST9400C clock is not correct?.................. 14 What do | do when the clocks go back in October and forward in March? .14 What should | do if | get ‘lost while programming the ST9400C’................ 14 What happens if there is a power failure? issues 14 Troublesnoofing SU ii Re 15 [_] MINI-PROGRAMMER OPERATING INSTRUCTIONS (Installer to tick if configured in this way) What 162 АРГО ИИА ЕЯ ies 16 Modifying the Heating & Hot Water Programme ............... ини иикинижинкичиннннни 16 Exiting HEATING & HOT WATER Programming Mode ................................ 16 Disabling/Enabling Time Perlods sise 17 Choosing Mé Operäling Mode... eR 17 Override and Extra Hour Functions LL 17 CAPOT FONDOS ee 17 CONFIGURATION & SERVICE DATA Configuration Data (to be completed by Installer)... 18 Böller & System Service LOO) susanne VO WHAT IS A PROGRAMMER? General Description Your Huneywell ST9400C provides lining control for Бо your central healing and hot water systems, letting you set ON and OFF periods to suit your own lifestyle. The ST9400C does not directly control the temperature but works together with other temperature controls, such as room thermostats and cylinder thermostats, to control your heating and hot water system in your home. With 7-day programming and up to 3 on/off periods per day, every day can be set differently, and heating and hot water can be set at different times trom each other. The following instructions explain how to programme and use the 5194000 to provide the most home comfort at the least cost. The way to use a Programmer Think about the time periods when you are typically in the house and when you are not. and also the times when you use a lot of hot water. 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 - 172 hours, depending on your house and your preferences. Other features are commonly available on the Programmer 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 1$ 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 and hot water were off. Pressing the appropriate 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 oft The MODE buttons allow you to select how you want to operate heating and hot water independently. 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. GETTING STARTED WITH YOUR ST9400C Your ST9400C 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 ST9400C will display text messages al every stage to help you get the most out of your central heating and hot water system. The ST9400C uses LOT" Technology to constantly update the display to give you feedback about what is required. Step 1: Setting the Date & Time Your ST9400C 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. S НОТ WATER HEATING A | ll i, (EN DAY/TIME (E) O CET THE TAU + \ 7 O НОТ WATER = — = cd. О POS HEATING АУМ — = Goo) Honeywell © > 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 аз a change has been made, the message ‘IS DAY OK?’ will be displayed. Once the correct day is reached, press the green ok button to confirm, and move to the next step. If you do not need to make a change, just press the (0%) 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 ST9400C 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 (0%) 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 line before Ihe dale and lime have been sel correctly, the message ‘DATE UNCHANGED’ will be displayed briefly, and your changes will not he saved Step 2: Running a Built-in Programme With the date and time correct, your ST9400C Programmer will now be operating to the built-in programmes. These have been designed to provide heating and hot water al typical times throughout the day, but if you want to customise the settings, please see the next section PROGRAMMING YOUR ST9400C (page 6). PROGRAMMING YOUR ST9400C The Built-in Programmes The buillan programines give you а slarling рони thal you can personalise lu 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). C] Built-in Programme (Profile A) ON 1 OFF 1 ON2 | OFF2 ON 3 OFF 3 Monday to | Heating 6:30am | 8:30am | 12:00pm | 1:00pm 4:30pm | 10:30pm Friday Hot Water | 6:30am | 8:30am | 12:00pm | 1:00pm | 4:30pm | 10:30pm_ Salurday € | Heating 6:30am | 9:30am | 12.00pm | 1.00um 4-30pm | 11.00pm Sunday Hot Water | 6:30am | 9:3Nam | 1200pm | 1:00nm | 430pm | 11:00nm | O Built-in Programme (Profile b) _ON1 | OFFi | ON2 | OFF2 | ON3 | OFFS Monday to | Heating 6:30am | 9:30am | 12:006m | 1:00pm 4:30pm | 11:00pm Friday Hot Water | 6:30am | 9:30am | 12:00pm | 1:00pm | 4:30pm | 11:00pm | Saturday & | Heating | 6:30am | 9:30am | 12:00pm | 1:00рт | 4:30pm | 11:00pm_ Sunday Hot Water | 6.30am | 9:30am | 12:00pm | 1:00рт | 4:30pm | 11:00pm О Built-in Programme (Profile С) ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3 Monday Lo | Healing 6:30am | 7:30am | 12:00pm | 12:00pm | 5:00pm | 10:00prn Friday Hot Water | 6:30am | 7:30am | 12:00pm | 12:00pm | 5:00pm | 10:00pm | Saturday £ | Heating 4:30am | 9:30am | 12:00pm | 1:00pm 5:30pm | 10:30pm Sunday Hot Water | 8:30am | 9:30am | 12:00pm | 1:00pm | 5:30pm | 10:30pm Your Personal Programme The table below has been left blank for you to record vour own personal programme. ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3 Monday Heating Hot Water | | Tuesday Heating Hot Water | Wednesday | Heating Hot Water | | Thursday Heating Hot Water | | Friday Heating Hot Water | | Saturday Heating Hot Water | Sunday Heating Hot Water | | PROGRAMMING YOUR ST9400C Reviewing the Programme Times To review your hot water programme, move the slider to the HOT WATER position. To review your heating programme, move the slider to the HEATING position. To review the programme times, press the @® button repeatedly. The appropriate ON and OFF markers will be displayed to show you which time is being reviewed. Any of these limes can be adjusted by using the © @& ur Dullons, and then confirmed using the OK button. Remember to return the slider to the RUN position after reviewing is complete, Modifying the Hot Water Programme The hot water programme has three pairs of ON/OFF switching times per day. Each time can be set between 3.00 am and 2.50 am (on the next day) to allow you to programme the hot water to stay on past midnight, If required. a. Move the slider to the HOT WATER position. ‘SET HOT WATER’ will show briefly to verify this action. FE HOT WATER HEATING L oy FS O — U SET HOT ШАТЕР | HOT WATER | | HEATING O U RUN he = \_ =) Honeywell =o | b. “SET ON-TIME 1' will then be displayed and the time setting for the first ON 1 time for MONDAY will now be flashing to indicate it can be changed. If you do not wish to change the time, press the green OK) button and move to the next step. If you do wish to make a change, use the © & or B buttons to change the first ON 1 time. Each press of the button will change the time by 10 minutes. As soon as the time has been changed, the message ‘ON-TIME 1 OK?’ will be displayed. Press the green OK) button to contirm the time Is correct and move to the next step. ‘SAVED’ will be displayed for a moment to confirm that any change has been saved to memory. DAY/TIME J HOT WATER HEATING L JS HOT WATER HEATING >, [MON 7 ZN > h FS O SET ON FIRE | ‘a | TIME | ‚ КЗ | ==> > A —- | | O La | 78 O et — мы ~~ pa E EXA ON? Oma a м2 ONS | OFF 1 OFF à OFF 3 ] OFF E OFF a ] PROGRAMMING YOUR ST9400C Note: When pressing the &] button the next ON or OFF marker may start to flash. This indicates you have tried to set a time equal to one of the next programme times already in the memory. Similarly, when pressing the button the previous ON or 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 ST9400C simply moves both times together as long as you continue to press the O $ or & buttons. Follow the procedure in ‘Reviewing the Programme Times (page 7) to check and adjust these times as necessary. с. ‘SET OFF-TIME 1' will be displayed and the first OFF 1 time will now be flashina. It you do not wish to change the time, press the green (0%) button and move to the next step. Otherwise, use the ©) & or |=) buttons to change the time. Press the green @ button to confirm the time is correct and move to the next step. ‘SAVED’ will be displayed for a moment to confirm that any change has been saved to memory, d. The remaining ÓN and OFF times (ON 2, OFF 2, ON 3, OFF 3) can be set by using the © Y or ® buttons to change the time, and the green @® button to confirm the time is correct and move to the next step. If you do not wish to change the time, just press the green @® button to move directly to the next ON/OFF time without making any changes. e. After setting or reviewing the last off time, OFF 3, the message ‘COMPLETE’ will be displayed to indicate the times for Monday have been set. You now have a choice of how to set the programme for the next day: Copying one day's Programme to another day (example Monday to Tuesday): f. Whilst the day is showing Monday, Press the COPY DAY button. The message ‘COPY MON TO TUESDAY OK? will be displayed and the letters TUE will flash to indicate the programme for Monday can be copied to Tuesday. 9. To select a different day to copy to, press the NEXT DAY button to cycle through the days. With each press of the NEXT DAY button the message will change to indicate the new day you are copying to. h. When the required day is indicated, press the green @® button to confirm, and the message "MON COPIED’ will be displayed for a moment. Ihe day into which Mondays programme has been copied is now available to have its programme edited. Note: Once a day's programme has been confirmed in this way, it now becomes the day whose programme is copied if the COPY DAY button is pressed again. OR Programming a Different Day: i. Press the NEAT DAY button to select the next day, which is displayed along the top of the screen. The programme for that day can then be adjusted by following steps b-e above. Programmes for the remaining days can be set in the same way, using the NEXT DAY button to move to the next day. PROGRAMMING YOUR ST9400C Exiting HOT WATER Programming Mode: To exit HOT WATER 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. Note: |f the unit is left in HOT WATER Programming mode for more than 10 minutes without the slider being moved or any buttons pressed, the message ‘MOVE SLIDER’ will be displayed. Press a button to finish programming, or move the slider to the RUN position. Modifying the Heating Programme The heating programme has three pairs of ON/OFF switching times per day. Each time can be set between 3.00 am and 2.50 am (on the next day) to allow you to programme the heating to stay on past midnight, if required. a. Move the slide switch to the HEATING position. ‘SET HEATING’ will show briefly to verify this action. J HOT WATER HEATING A (O) | SET HEATING O DAY/TIME HOT WATER HEATING Pl b. Now follow the same procedure to set the times as described in ‘Modifying the Hot Water Programme (page 7) steps b. to 1. Exiting HEATING Programming Mode: To exit HEATING 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 (6%) button will have been saved. Note: If the unit is left in HEATING Programming mode for more than 10 minutes without the slider being moved or any buttons pressed, the message ‘MOVE SLIDER’ will be displayed. Press a button to finish programming, or move the slider to the RUN position. Disabling / Enabling Time Periods (for Heating and/or Hot Water) To disable any of the time periods ON 1 to OFF 1, ON 2 to OFF 2, or ON 3 to OFF 3, simply set the ON time and its paired OFF time to the same time, and the programme will just ignore them. To re-enable the time period, simply set the two ON and OFF times to be different, Я OPERATING YOUR ST9400C Choosing the Operating Mode (for Heating and/or Hot Water) The operating mode may only be changed when the slider is set DAYITIME to the RUN position. HOT WATER A green INDICATOR LAMP shows when the heating or hot water is switched ON. HEATING RUN SS) Two MODE buttons are provided to select the Operating Mode and therefore how the heating and hot water are controlled. Heating has four possible Operating Modes; these are OFF, AUTO, ONCE, CONT. Pressing the heating MODE button scrolls round these modes in sequence, and the display indicates which mode is currently active. HOT WATER HEATING HOT WATER HEATING Ma eng ни À 19-06-2010 19-06-2010 О — O PUP TL | IN. O I | cone fad "haf or MUT | Z ONCE ONCE (DHCE» «Alto AUTO LE Fos ices Со Honeywell @D Honeywell FD , * OFF mode The heating will remain OFF. + AUTO (Automatic) mode The heating will be switched ON and OFF according to the heating programme e ONCE mode The heating will come ON at the first programmed ON time, and go OFF at the last programmed OFF time. CONT (Continuous) mode The heating will remain ON continuously. The hot water MODE button operates in the same way as described above for the heating MODE button. Overriding the Operation Without Changing the Programmes In AUTO and ONCE operating modes, the OVERRIDE buttons switch the heating or hot water ON or OFF without altering the programme. When the indicator lamp is ON, pressing the OVERRIDE button switches the heating or hot water OFF until the next programmed ON time. When the indicator lamp is OFF, pressing the OVERRIDE button switches the heating or hot water ON until the next programmed OFF time. The LoT™ Display will provide you with information about the override. 10 OPERATING YOUR ST9400C The Extra Hour Function (for Heating and/or Hot Water) The EXTRA HOUR buttons allow you to switch the heating or hot water ON for up to 3 extra hours without altering the programme. Pressing either button once will give one extra hour. The LoT™ Display will display the message ‘+ 1 HOUR’, to confirm the button has been pressed. When the green INDICATOR LAMP is OFF. pressing an EXTRA HOUR button switches the heating or hot water ON for just one hour. When the green INDICATOR LAMP is ON, pressing an EXTRA HOUR button extends the programmed ON period by one hour. Further presses of the EXTRA HOUR buttons will increase the extra hour period by one hour for each button press, up to a maximum of 3 hours. The LoT™ Display will continue to provide information on the extra hour status, To cancel the extra hours, just keep pressing the EXTRA HOUR button until the ‘CANCELLED’ message appears on the LoT™ Display. The Holiday Function The Holiday function allows you to switch off your heating and hot water for a specified number of days (from 1-99 days). This lets you save energy and related costs when you are away from home, but resumes normal operation on the day of your return To set the Holiday function: a. Ensure the slider is in the RUN position, then press the HOLIDAY button once. The message "SET HOLIDAY” will appear briefly, followed by "SET DAYS AWAY". b. Use the O) $ or ©) buttons to set the number of days you will be away. The display will show the number of days, and this number will be flashing to indicate it can be changed. The day of the week will also keep changing to show the day you return. с. If you have made a change to the number of days, the message ‘DAYS AWAY ОК ? will appear Press the green @® button to confirm your selection Я. The message ‘SAVED will be displayed for a few seconds, followed by the date you return, to enable you to check you have programmed the holiday function correctly. e. During the holiday period, the LoT™ Display will show the message ‘ON HOLIDAY” and the display will count down the number of days till you return. To cancel the Holiday function: Г. To cancel the Holiday function, just press the HOLIDAY button again. The LoT™ Display will show ‘CANCELLED’ and the unit will return to normal operation. Note: while setting the Holiday function, if there is a gap of more than 1 minute between button presses, the function will cancel itself automatically and return to normal operation. 11 FINE TUNING YOUR ST9400C Changing from AM/PM Time Display to the 24 Hour Clock Your ST9400C 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 СГ) @ and & buttons together for about 2 seconds. Ignore the ‘NOT VALID’ message that will appear briefly. All the displayed times will be automatically changed to the new format, Repeating this procedure will change the clock display back to the original format. Changing the Installer Parameters The ST9400C has a special Installer Mode where some features can be adjusted to suit your lifestyle or preferences - these are called Installer Parameters, and are listed in the table below, along with a description of the options that are possible. INSTALLER Parameter Default Options Description ‚PARAMETER Number Value 24hr or am/om 1 12 12,24 | 12 = am/pm display, clock display. 24 = 24hr display Configure backlight 2 2 0,1,2 |O=off, operation. 1 = on if button pressed, 2 = on continuously Enable/disable auto 3 | O, | O = disabled, time change. 1 = enabled 1-day or 9/2-day or 4 ri 119,7 |1 = 1-day operation, 7-day operation. 5 = 5/2-day operation, f = /-day operation Number of ON/OFFs 5 3 2,3 |2= 2 on/ofts per day, per day. 3 = 3 on/offs per day select default time 6 A А.Б, С | А = standard, programme. b = at home, C = economy Configure 7 0 0,1 0 = standard Programmer, Mini-Programmer. 1 = Mini-Programmer This will be set by your Installer and will depend on your system — do NOT change without contacting installer. Reset all parameters 8 1 0, 1 0 = do not reset 1 = default parameters 12 FINE TUNING YOUR ST9400C To Enter Installer Mode: Ensure the slider is in the RUN position, then press and hold @® and ® 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 ОК 7 Press the @® button to take you into the Installer Mode Parameter Menu. Parameter 1 is now available to change. This is to allow you to change the clock format from 12 hour AM/PM to 24 hour. At every step, the LoT'" Display will inform you what the parameter means and what option you have selected. The parameter number is shown on the display separated by a colon from the parameter value, You can change the parameter value by pressing the © @ or & buttons. At this point the description in the LoI™ Display will change and the parameter value will flash. If you press @® the value will stop flashing and be saved for use. Press (0%) to move to the next parameter available for editing. Keep pressing @® to step around the list of parameters, and use O) @ or © buttons to change the parameter value . Any parameter changes that have been confirmed with the (OK) button will be saved and used. To Exit Installer Mode: h. You can exit Installer Mode at any time by moving the slider to the next position and then back again to RUN. Note: Installer Mode will exit automatically after 10 minutes if the slider is not moved. 13 FAQ AND TROUBLESHOOTING How do I set the time only, if the ST9400C clock is not correct? Your ST9400C contains a very accurate digital clock that is factory pre-set. Should you ever need to change the time, just follow this procedure: a. Move the slider to the DAY/TIME position. b. Keep pressing the green @® button until the message ‘SET THE TIME: is displayed, To change the time, press the © € or № buttons until the correct time is shown. 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’. c. Move the slider to the RUN position, to complete changing the time. What do | do when the clocks go back in October and forward in March? Your 519400С is factory-set to adjust the clock automatically at the correct dates, so you should never need to adjust the clock forward or backwards yourself. It is possible to disable this particular feature, as described in the section ‘Changing the Installer Parameters’ (page 12). You may also check the section ‘Configuration & Service Data’ (page 18) to see how your Installer has configured your product. What should | do if I get ‘lost’ while programming the ST9400C? The LoT™ Display on ST9400€ 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. At this point just follow the instructions again. What happens if there is a power failure? In the event of a mains power failure, the ST9400C display will go blank, the indicator lamps will go out, and the control outputs will switch off. The real time will be conslantly maintained by means of the built-in ballery backup, ready lo power back up as if nothing had happened when the mains power is restored. In addition, all programmes and settings are stored in a special memory (called NV memory) which requires no power to maintain information, and so will be retained indefinitely. Should the correct time and date ever be lost, for whatever reason, the message ‘SET DATE + TIME’ will be displayed whilst the slider is in the RUN position. In this case, simply follow the procedure described under ‘Step 1: Setting the Date & Time (page 4). It should not be necessary to make any changes to your programmes. 14 FAQ AND TROUBLESHOOTING Troubleshooting Guide This is a quick guide to help you diagnose and cope wilh possible problems with S1T9400C. For further assistance, please contact your Installer. Symptom Possible Cause Remedy ST9400C has a blank LCD display No power to the heating system Check that there is power to the heating system Fault in ST9400C Call Installer 319400C indicates that Heating and/or Hot Water are ON, but radiators are cold and/ or taps are running with cola water. Temperature controls are switched off or set too low Check that the temperature controls in the system are set to appropriate levels Boiler or other system controls have malfunctioned Call Installer 319400C shows the message ‘INTFRNAI FAULT’ Fault in ST9400C Call Installer When the slider is moved to the HOT WATER position, the display shows 'NOT VALID’ 5194000 has been configured as a Mini-Programmer Check the Contents page of this booklet or the ‘Configuration & Service Data’ section (page 18) to see if your ST9400C has been configured as a Mini-Programmer. Call Installer to check if this is correct for your heating system. 15 MINI-PROGRAMMER OPERATING INSTRUCTIONS You need only refer to this section if: * The Mini-Programmer box ts licked on Ihe Contents page of this buuklel, с! e The ST9400C Configuration Data (page 18) indicates it is set as a Mini- Programmer. What is a Mini-Programmer? In a poorly controlled gravity circulation hot water system, whenever the boiler comes on to service the heating, there will inevitably be some circulation though the hot water storage tank, which will then heat up. 90, whenever the HEATING is ОМ, the HOT WATER is also ON. It is therefore NOT possible to have independent programmes for heating and hot water, so it is only necessary to enter one time programme. If you have this type of installation (gravity circulation hot water circuit WITHOUT a hot water control valve), your Installer should have restricted the ST9400C Programmer to be a Mini-Programmer. This section describes how to use the product as a Mini-Programmer. Modifying the Heating & Hot Water Programme The heating & hot water programme has three pairs of ON/OFF switching times per day. Each time can be set between 3.00 am and 2.50 am (on the next day) to allow you to programme the heating € hot water to stay on past midnight, if required. a. Move the slider to the HEATING position. ‘SET HEATING’ will show briefly to verify this action. D. Now follow the same procedure to set the times as described in ‘Modifying the Holt Waler Programme (page 7) steps b lo 1. Exiting Heating € Hot Water Programming Mode: To exit HEATING 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 Ihe @® button will have been saved. Note: |f the unit is left in HEATING Programming mode for more than 10 minutes without the slider being moved or any buttons pressed, the message ‘MOVE SLIDER’ will be displayed. Press a button to finish programming, or move the slider to the RUN position. 16 MINI-PROGRAMMER OPERATING INSTRUCTIONS Disabling / Enabling Time Periods To disable any of the time periods ON 1 to OFF 1, ON 2 to OFF 2, or ON 3 to OFF 3, simply set the ON time and its paired OFF time to the same time, and the programme will just ignore them. To re-enable the time period, simply set the two ON and OFF times to be different. Choosing the Operating Mode In a Mini-Programmer, some Operating Modes are not possible. For example, HEATING in AUTO mode and HOT WATER in OFF mode is not allowed. When configured, your ST9400C knows which combinations of Operating Mode are possible, and only permits those combinations that are allowed. Override and Extra Hour Functions When you use the hot water OVERRIDE or EXTRA HOUR functions, they will operate as normal. However, the heating OVERRIDE or EXTRA HOUR functions will also bring on the hot water. This is a consequence of the type of system you have, and is perfectly normal. Other Functions All other functions operate the in the same way as for the standard ST9400C. 17 CONFIGURATION & SERVICE DATA Configuration Data (to be completed by Installer) The table below is for the Installer to complete to indicate how your ST9400C has been configured. Configurable Options Installer Configured Features (tick appropriate box) 24hr or am/pm clock | am/pm display display eshr display Display backlight Of operation On if button pressed On continuously | Automatic time Enabled change Disabled 1-day or 5/2-day or 1-day operation 7-day operation 5/2-day operation 7-day operation Number of ON/OFFs | 2 on/offs per day per day 3 on/ofis per day Default programme | A= standard OWI Doo oOo do da b = at home | С = economy Set as No | Mini-Programmer * Yes $ Note: 1 is recommended that gravity circulation hot water systems are fitted with a suitable hot water control valve as shown in the Honeywell Sundial С Plan system (see ST9400A/ST9400C Installation Instruction sheet). If so, then there is no need to set the ST9400C as a Mini-Programmer. 18 S002 737-005 A 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 al different times. Sel the ‘On’ and ‘Off time periods to suit your own lifestyle. On some programmers you must also sel whether you want the healing and hot water to run continuously, run under the chosen ‘On’ and ‘Off heating periods, ог be permanently of, 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 \етрогату 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 swiiched 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. Plain English Campaign This product and its associated documentation and packaging are protected hy vannus intellectual property nghts 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 copynghts. Honeywell reserves the night to modify this document, product and functionality without notice. This document replaces any previously issued mstructions and is only applicable to the product(s) described. This product has been designed for applications as described within this document. Гог 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 1ЕВ Honeywell Technical Help Desk: 08457 678999 50022737-005 A www.honeywelluk.com © 2007 Honeywell International Inc. ">

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