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13

Using the Special Features

• 

SERVICE indicator (optional)

 

Note:

 This option only works if activated by your installer.

  The  'SERVICE'  indicator  is  displayed  at  set 

intervals as a reminder that your heating system 

requires a routine check. Please call your installer 

to arrange a maintenance visit.

  The ‘SERVICE’ indicator will remain on the display 

of the CM727 until it is either reset or disabled by 

your installer. The CM727 and heating system will 

continue to operate as normal.

• 

Automatic Summer/Winter Time Change

  The CM727 has a built-in Automatic Summer/Winter Time Change feature that will automatically 

adjust the clock forward or backward by one hour for ‘Daylight Saving Time’. This is carried out 

on the last Sunday of March and October each year.

• 

Optimum Start

  Optimum  Start  is  a  program  which  ensures  that  the  optimum  temperature  conditions  are 

achieved at the required times. This is an Energy Efficiency feature that adjusts the start time 

of your heating system depending upon how cold it is. For example, on cold days your heating 

system will be started earlier to ensure that your home is warm when you get up (at the target 

temperature) and on warmer days the heating system will be started later to save energy. So, 

if the Optimum Start Feature is used, then the time / temperature settings which are entered 

into the thermostat should be set to when you want to be warm by and not when you want the 

heating system to start.

PROGRAMMING THE CM727 

‘Using the Features’

Summary of Contents for CM721

Page 1: ...1 CM721 2 6 CM727 7 11 USER GUIDE ...

Page 2: ...providing comfortable temperatures when you are at home and energy savings when you are away The following instructions explain how to program and use the thermostat to provide the most home comfort at the least cost Controls Layout LCD Screen Battery Low Indicator Time Display Burner On Indicator Temperature Display 1 2 3 6 11 12 13 7 8 9 10 4 5 Battery Cover Program Buttons Time Change Buttons S...

Page 3: ...egin setting the date When you set the date for the first time after the batteries are inserted the display will show Press the or buttons to set the current day of the month e g d 01 1st day of the month then press the green button to confirm b Press the or buttons to set the current month of the year e g m 01 January then press the green button to confirm c Press the or buttons to set the curren...

Page 4: ...od will be pushed forward c Once the required time is reached press the green button to confirm Note If the original time setting did not require adjustment press the green button to move to step d d The temperature setting for period 1 will now be flashing To adjust this press the or buttons and confirm the setting again by pressing the green button e The next time and temperature period will now...

Page 5: ...re To review the programmed target temperature the temperature which the thermostat is trying to maintain press the button This target temperature value will be displayed flashing for 5 seconds before returning to the current room temperature value Temperature Override During normal operation AUTO mode the programmed temperature can be adjusted manually by pressing the or buttons or the button The...

Page 6: ...r backward by one hour for Daylight Saving Time This is carried out on the last Sunday of March and October each year Optimum Start Optimum Start is a program which ensures that the optimum temperature conditions are achieved at the required times This is an Energy Efficiency feature that adjusts the start time of your heating system depending upon how cold it is For example on cold days your heat...

Page 7: ...clear after a few minutes contact your installer Your installer has set a scheduled maintenance alert period on your CM721 as a recommendation that your heating system should receive a routine inspection Call your installer to arrange a maintenance visit Note The CM721 and heating system will continue to operate as normal RF communication lost due to the wrong location of the room unit Hook the ro...

Page 8: ...esigned to control your heating system efficiently providing comfortable temperatures when you are at home and energy savings when you are away The following instructions explain how to program and use the thermostat to provide the most home comfort at the least cost Controls Layout LCD Screen Battery Low Indicator Time Display Burner On Indicator Day Indicator Temperature Display 1 2 3 4 5 6 Holi...

Page 9: ...he first time after the batteries are inserted the display will show Press the or buttons to set the current day of the month e g d 01 1st day of the month then press the green button to confirm b Press the or buttons to set the current month of the year e g m 01 January then press the green button to confirm c Press the or buttons to set the current year e g yr 06 2006 then press the green button...

Page 10: ...onfirm the setting again by pressing the green button e The next time and temperature period will now be active Adjust this by repeating steps b d above until all 4 periods are set for Monday or press the AUTO button to run the program as set at any time You now have a choice of how to set the program for the next day 1 2 3 4 5 6 7 4 3 2 1 The Built in Heating Program The built in heating program ...

Page 11: ...enable time periods a To disable unwanted periods go to the desired period 2 to 4 using the PROGRAM or buttons to navigate ensure the correct period is highlighted with the flashing square symbol Press and hold the button for at least 2 seconds and the display will indicate the period has been removed from the program b To enable periods again follow the same procedure as above navigating to the a...

Page 12: ...Special Functions HOLIDAY Function The holiday function allows you to set a constant temperature default 10 C 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 thermostat is running in AUTO or MAN operating modes b Press the holiday but...

Page 13: ...ackward by one hour for Daylight Saving Time This is carried out on the last Sunday of March and October each year Optimum Start Optimum Start is a program which ensures that the optimum temperature conditions are achieved at the required times This is an Energy Efficiency feature that adjusts the start time of your heating system depending upon how cold it is For example on cold days your heating...

Page 14: ...the radio frequency system When the green LED is ON the boiler is also ON When the LED is OFF the boiler is OFF When do I need to use the push button You should use the push button to control your boiler only when the RF communication is lost see the Troubleshooting Guide Push button and relay status LED s This product and its associated documentation and packaging are protected by various intelle...

Page 15: ... clear after a few minutes contact your installer Your installer has set a scheduled maintenance alert period on your CM727 as a recommendation that your heating system should receive a routine inspection Call your installer to arrange a maintenance visit Note The CM727 and heating system will continue to operate as normal RF communication lost due to the wrong location of the room unit Hook the r...

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