iQe CS027 User Instructions Download Page 2

What is a programmable room thermostat?

...an explanation for householders.

A programmable room thermostat is both a programmer and a 
room thermostat. A programmer allows you to set 'ON and OFF' 
time periods to suit your own lifestyle. A room thermostat works 
by sensing the air temperature, switching on the heating when 
the  air  temperature  falls  below  the  thermostat  setting  and 
switching it off once the set temperature has been reached.

So,  a  programmable  room  thermostat  lets  you  choose  what 
times you want the heating to be on, and what temperature it 
should reach while it is on. It will allow you to select different 
temperatures  in  your  home  at  different  times  of  the  day  (and 
days of the week) to meet your particular needs.

Turning a programmable 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 the boiler and radiators. Neither does the 
setting  affect  how  quickly  the  room  cools  down.  Turning  a 
programmable room thermostat to a lower setting will result in 
the  room  being  controlled  at  a  lower  temperature,  and  saves 
energy.

The way to set and use your programmable room thermostat is 
to find the lowest temperature settings that you are comfortable 
with at the different times you have chosen, and then leave it 
alone  to  do  its  job.  The  best  way  to  do  this  is  to  set  low 
temperatures  first,  say  18ºC  and  then  turn  them  up  by  one 
degree  each  day  until  you  are  comfortable  with  the 
temperatures. You won't have to adjust the thermostat further. 
Any  adjustments  above  these  settings  will  waste  energy  and 
cost you more money.

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Summary of Contents for CS027

Page 1: ...cognised as one of the best ways in which to control central heating The CS027 programmable room thermostat has a large display and intuitive user interface making it easy to set up and use The CS027...

Page 2: ...rning a programmable 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 the...

Page 3: ...ldest room is comfortable then prevent any overheating in other rooms by adjusting theTRVs The time on the programmer must be correct Some types have to be adjusted in spring and autumn at the changes...

Page 4: ...Actual Room Temperature Day of Week Time of Day Until Time Then Temp Enter Button Button Button Back Button Set Temperature 4 DISPLAY CS027...

Page 5: ...he next temperature setting is due to operate Then temp This is the temperature setting that is due to operate next Day of the week It is important that the correct day of the week shows in the displa...

Page 6: ...temperature change TEMPORARY OVERRIDE WITH TIME EXTENSION Maximum of 4 hours The temperature will revert to its normal programmed setting at the next timed temperature change Press or to adjust temper...

Page 7: ...mperature PERMANENT OVERRIDE CANCELLATION Press or to adjust temperature New temperature setting will be shown on the display Press ENTER The hours of the UNTIL time will flash Press ENTER Press the r...

Page 8: ...am 18 C Period 3 11 30 am 20 C Period 4 01 30 pm 18 C Period 5 05 00 pm 21 C Period 6 10 00 pm 15 C Settings Saturday and Sunday Time Target Temperature Period 1 07 00 am 20 C Period 2 10 00 am 19 C...

Page 9: ...s below the standby temperature set All programme settings are overridden and the unit will not return to normal operation until the standby period has ended by pressing the ENTER button Holiday This...

Page 10: ...nge commands with the remaining settings that are not required set to the same time and temperature as the last required setting Press ENTER three times The day of the week will flash Press or to sele...

Page 11: ...rogrammes Pressing ENTER after each day to confirm The next sequential day will now flash When complete press BACK to return to normal operating mode Press ENTER To programme remaining days please go...

Page 12: ...TER Press the or to adjust to the date you wish the holiday programme to start Pressing ENTER to change between Day Month and Year Press or until HOLIDAY appears on the display The BACK date will now...

Page 13: ...se icon appearing on the right of the display Indicating a holiday period is pending To cancel a set holiday programme in ADVANCE of its activation re programme using the above procedure and set the S...

Page 14: ...he time of day will flash Press ENTER Press or to adjust hours then press ENTER Press or until Time Date appears on the display The minutes for the time of day will flash Press or to adjust minutes th...

Page 15: ...g the CS027 in the UK the daylight saving ON setting should be selected which will automatically adjust the GMT BST times accordingly Standby temperature This is the temperature setting used when in S...

Page 16: ...authorised adjustments being made in multi occupancy buildings MENU OPTIONS Contd Setting the SELECT CLOCK FORMAT Pressing BACK at any time in the process will return you to normal operating mode Pres...

Page 17: ...T BST Press ENTER twice Press ENTER Press or until Daylight saving appears on the display Press or until Set Up appears on the display Press ENTER Either Daylight Saving Off or Daylight Saving On will...

Page 18: ...operating mode Press ENTER twice Press ENTER Press or until the required option appears on the display Press or until Set Up appears on the display Press ENTER The temperature setting will now flash P...

Page 19: ...feature would normally be set by your installer Press ENTER twice Press ENTER Press or until TPI Cycles per hour appears on the display Press or until Set Up appears on the display Press ENTER The cur...

Page 20: ...nd temperature With the optimum start set to OFF the user will need to anticipate the warm up time needed in the programme settings Typically the set temperature will be set approx 1 hour in advance o...

Page 21: ...ss ENTER twice Press ENTER Press or until Tamper Setting appears on the display Press or until Set Up appears on the display The first digit of FOUR will now flash Press ENTER Press or to adjust to a...

Page 22: ...Landlord in the first instance Press ENTER twice Press ENTER The following message will appear Enter first digit The following message will appear To enter release code press ENTER Repeat the previous...

Page 23: ...K and ENTER button simultaneously Using this proceure will restore the CS027 to the original factory settings theTime and Date will remain correct BATTERY The CS027 runs on 2 standard AA Alkaline non...

Page 24: ...se carefully pull down the hinged battery cover on the front of the unit Ensure they are fitted correctly as indicated by the terminal markings in the battery compartment Please dispose the old batter...

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