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Contents

CONTROL OF YOUR SYSTEM

General Description of Controls in Your System ...............................................4

The way to use a Programmer ..........................................................................4

The way to use a Room Thermostat / Optimisation ..........................................5

GETTING STARTED WITH YOUR ST9420C

Step 1: Setting the Date & Time .......................................................................6

Step 2: Running a Built-in Programme .............................................................7

PROGRAMMING YOUR ST9420C

The Built-in Programmes / Your Personal Programme......................................8

Reviewing the Programme Times .....................................................................9

Modifying the Hot Water Programme ...............................................................9

Modifying the Heating Programme .................................................................11

Disabling / Enabling Time Periods (for Heating and/or Hot Water) ................11

OPERATING YOUR ST9420C

Choosing the Operating Mode (for Heating and/or Hot Water) ......................12

Overriding the Operation Without Changing the Programmes.......................12

The Extra Hour Function (for Heating and/or Hot Water) ................................13

The Holiday Function ......................................................................................13

Enquiry Mode .................................................................................................14

FINE TUNING YOUR ST9420C

Changing from AM/PM Time Display to the 24 Hour Clock............................15

Changing the Installer Parameters .................................................................15

Optimisation ....................................................................................................17

BOILER SERVICE REMINDER

Countdown to Service / When Service is Due ................................................18

Shut-down .......................................................................................................19

OPERATING YOUR DT92E

Inquiring about the Set Temperature / Adjusting the Set Temperature ...........19

Switching Off / Display Updates / Heating Indicator / Frost Protection ..........20

DT92E OPERATING INDICATORS

Low Battery Indicator / Battery Replacement .................................................21

RF Communications Indicator / Lockout ........................................................21

DT92E ENERGY SAVING ECO FEATURE

Entering ECO Mode and Setting the Energy Saving Time Period ..................22

What Happens in ECO Mode? .......................................................................22

How to Exit ECO Mode ...................................................................................23

FINE TUNING YOUR DT92E

Changing the DT92E Installer Parameters .....................................................23

FAQ AND TROUBLESHOOTING

Frequently Asked Questions ..........................................................................25

Troubleshooting Guide ...................................................................................27

CONFIGURATION & SERVICE DATA

Configuration Data (to be completed by Installer) .........................................30

Boiler & System Service Log ..........................................................................31

Содержание Y9420H Sundial RF2

Страница 1: ...less Room Thermostat S E H w b c Y c o 1 2 3 4 5 This document is to be left with the user and forms part of a Home Information Pack g and ing to some under ust be Mean nsing mostat stat to ds on etting in the rk if a o find b The n it up st the y tat to alling hoose ightly eating ed by nt the T ...

Страница 2: ...p Heating Override Button Slider Heating Operating Mode Indicator 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 20 Heating Operating Mode Button OK Next Button Clock and Buttons Hot Water Operating Mode Button Hot Water Operating Mode Indicator Holiday Button Copy Day Button Next Day Button Hot Water Override Button Hot Water Indicator Lamp Hot Water Extra Hour Button 22 23 22 21 20 19 18 23 ...

Страница 3: ...y Button 1 2 3 4 5 6 7 8 9 10 11 12 13 OFF Standby Indicator RF Communications Indicator Battery Low Indicator Fault Indicator Setpoint Indicator Temperature Display 9 10 8 11 This p prope and ot design Honey docum This p the sc for mis Manuf Techno Repres 1 2 3 4 5 6 8 7 9 13 11 12 10 Boile The sp the na This in Serv Date DT92E Controls Layout ...

Страница 4: ...day Function 13 Enquiry Mode 14 FINE TUNING YOUR ST9420C Changing from AM PM Time Display to the 24 Hour Clock 15 Changing the Installer Parameters 15 Optimisation 17 BOILER SERVICE REMINDER Countdown to Service When Service is Due 18 Shut down 19 OPERATING YOUR DT92E Inquiring about the Set Temperature Adjusting the Set Temperature 19 Switching Off Display Updates Heating Indicator Frost Protecti...

Страница 5: ...re 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 1 hours depending on your house and your preferences If Optimum Start has been selected see page 17 you...

Страница 6: ...t of the house for a few hours or if you want a reduced temperature for a while and don t want to have to remember to turn the temperature back up see pages 22 23 for details Optimisation see page 17 for explanatory diagrams Your control system has some features called Optimisation which aim to save energy while making you as comfortable as possible These may or may not be enabled check page 30 wh...

Страница 7: ...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 D...

Страница 8: ... 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 ...

Страница 9: ...in Programme Profile b ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3 Monday to Friday Heating 6 30am 9 30am 12 00pm 1 00pm 4 30pm 11 00pm Hot Water 6 30am 9 30am 12 00pm 1 00pm 4 30pm 11 00pm Saturday Sunday Heating 6 30am 9 30am 12 00pm 1 00pm 4 30pm 11 00pm Hot Water 6 30am 9 30am 12 00pm 1 00pm 4 30pm 11 00pm Built in Programme Profile C ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3 Monday to Friday Heating 6 30am 7 30a...

Страница 10: ...he 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 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 button and mo...

Страница 11: ...ext 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 ...

Страница 12: ...NG will show briefly to verify this action b Now follow the same procedure to set the times as described in Modifying the Hot Water Programme page 9 steps b to i 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 button will have been saved Note...

Страница 13: ... AUTO Automatic mode The heating will be switched ON and OFF according to the heating programme 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 Ch...

Страница 14: ...me but resumes normal operation on the day of your return During this period heating will operate at the OFF frost protection set temperature and the hot water will remain off 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 or buttons to set the number of days y...

Страница 15: ...nformation is being viewed and the main display will show the value If the information is not available the display will show dashes instead of a temperature value The table below shows the type and sequence of information available in Enquiry Mode To exit Enquiry Mode If the button is not pressed for 30 seconds your ST9420C will return to RUN mode Information LoT Message Other display symbols Roo...

Страница 16: ... suit your application see CONFIGURATION SERVICE DATA section However you may wish to alter some of the settings yourself and this section shows you how to do this Note some parameters indicated by may only be viewed if the previous parameter is set to a particular value Set hot water temperature is only used when the system contains a CS92A wireless hot water sensor and is not used in this system...

Страница 17: ...by pressing the or buttons At this point the description in the LoT Display will change and the parameter value will flash If you press the value will stop flashing and be saved for use INSTALLER PARAMETER Parameter Number Default Value Options Description Optimum start 9 0 0 1 2 0 no optimum start 1 delayed start 2 optimum start on Optimum start limit 10 1 1 2 3 1 1 hour 2 2 hours 3 3 hours Optim...

Страница 18: ...misation The Optimisation features are explained on page 5 Parameters 9 10 and 11 are used to enable or disable and set these features to suit your requirements You can set Optimum Start Delayed Start or Optimum Stop and you can also set a limit to the Optimum Start time of 1 2 or 3 hours Note the radiator symbol will flash to indicate Optimisation is taking place The diagrams below illustrate how...

Страница 19: ...system to ensure your safety If this happens you must arrange an immediate service visit Contact details should be listed on page 31 of this guide in the section Boiler System Service Log A contact telephone number may also have been programmed into the ST9420C If so a message will appear on the LoT Display indicating the number you should call Countdown to Service Your ST9420C can indicate a coun...

Страница 20: ...own However you should still arrange an immediate service visit as this will allow you to comply with the law and ensure your gas boiler is operating safely BOILER SERVICE REMINDER OPERATING YOUR DT92E Inquiring about the Set Temperature DT92E normally displays the measured room temperature To inquire about the set temperature simply press one of the or buttons The set temperature will be shown on...

Страница 21: ...e up to a few minutes delay between an action initiated on ST9420C and the DT92E display being updated If you press a button on DT92E it may take a few seconds for ST9420C to respond DT92E will indicate it is waiting for information by displaying the hourglass symbol and dashes as shown Heating Indicator The flame symbol indicates that the boiler is on for heating The flame will disappear when the...

Страница 22: ...te and synchronise with ST9420C This process may take up to 4 minutes and will be indicated by the word Sync on the DT92E display RF Communications Indicator A brief flash of the RF symbol indicates the DT92E has been communicating with the other system controls Lockout Your DT92E works in conjunction with the ST9420C time control If the timer is set to OFF or CONT it may not be possible to overri...

Страница 23: ...CO button to enter ECO mode The word ECO will appear on the display and the thermostat will allow you to set the number of hours you want to be at the new set temperature Use the and buttons to set the hours up to a maximum of 24 hours Please note ECO mode is not accessible in Holiday mode or if Service shutdown has occurred What Happens in ECO Mode In ECO mode the display will show a countdown of...

Страница 24: ...s you how to do this INSTALLER PARAMETER Parameter Default Value Options Description Temperature measurement offset t0 0 3 to 3 K Offset to measured temperature Upper setpoint limit uL 35 21 to 35 C Upper set temperature limit in C Lower setpoint limit LL 5 5 to 21 C Lower set temperature limit in C Energy saving ECO setpoint ES 18 5 to 35 C Energy saving ECO set temperature in C Reset parameters ...

Страница 25: ...nd buttons to move from one parameter to the next Stop at the Parameter you wish to change To Change a Parameter Use the standby button to select the parameter value then the and buttons to change the value Confirm the change by pressing the button again to take you back to the parameter To Exit Installer Mode Hold the button for 3 seconds to exit Installer Mode Note The Installer Mode will exit a...

Страница 26: ...r Installer has configured your product What should I do if I get lost while programming the ST9420C The LoT Display on ST9420C 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 i...

Страница 27: ... DT92E is blocked by a metal object Check the direct path between the two devices and reposition any object that may be blocking the signal or move the thermostat How do I know when to change the batteries in the DT92E room thermostat If the DT92E batteries need changing the battery symbol will flash on the DT92E display DT92E will continue to operate for at least 4 weeks after the indicator begin...

Страница 28: ... before the counter reaches zero After servicing your boiler the Service Engineer Installer will reset the ST9420C to remind you when the next boiler service is due Each service is normally a maximum of 1 year apart Although the heating is still operating the ST9420C screen keeps flashing the message Your boiler service is overdue Arrange an immediate boiler service After servicing your boiler the...

Страница 29: ...radiator symbol DT92E shows a flashing RF symbol Your DT92E batteries are running low on power Change the DT92E batteries see page 21 for how to do this RF communication path between ST9420C and DT92E is blocked possibly by a metal object Check direct path between both products and re position any objects that may be blocking the signal Relocate the DT92E if possible ST9420C shows the message SENS...

Страница 30: ...29 ...

Страница 31: ...y operation 7 day operation Number of ON OFFs per day 2 on offs per day 3 on offs per day Default time programme A standard b at home C economy Hot water set temperature From 40 to 85 C 50 C Optimum start no optimum start delayed start optimum start on Optimum start limit 1 hour 2 hours 3 hours Optimum stop disabled enabled Frost protection temperature From 5 to 16 C 5 C Minimum ON OFF time 1 2 3 ...

Страница 32: ...as 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 Environmental and Combustion Controls Division of Honeywell Technologies Sàrl ACS ECC EMEA Z A La Pièce 16 11...

Страница 33: ...e 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...

Страница 34: ...itching on the heating when the air temperature falls below the thermostat setting and switching it off once this set temperature has been reached Turning a room thermostat to a higher setting will not make the room heat up any faster How quickly the room heats up depends on the design of the heating system for example the size of boiler and radiators Neither does the setting affect how quickly th...

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