Horstmann CentaurPlus C21 Series 2 User Operating Instructions Manual Download Page 1

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Two Channel Central Heating and Hot Water Programmer

The Horstmann CentaurPlus C21 two channel programmer

gives independent control over hot water and heating

with up to 3 ON/OFF settings per 24 hours.

It also has a 1 hour manual boost button for the hot water and

an advance button for the central heating.

There is also a programming switch allowing permanent selection of:

OFF/ON/AUTO/ALL DAY.

CentaurPlus C21 Series 2

User Operating Instructions

Summary of Contents for CentaurPlus C21 Series 2

Page 1: ...control over hot water and heating with up to 3 ON OFF settings per 24 hours It also has a 1 hour manual boost button for the hot water and an advance button for the central heating There is also a pr...

Page 2: ...ch period symbol 4 SET button 5 Hot Water BOOST or adjust button 6 Central Heating ADVANCE or adjust button 7 Hot Water HW programme select button or ENTER button 8 Central Heating CH programme select...

Page 3: ...d Fully Pumped or Gravity System The installer will have set the programmer to suit the installed system This is normally a Fully Pumped system which will allow independent control of the central heat...

Page 4: ...independent it is possible to have them set differently if necessary All of the settings above will be permanent i e unaffected by programme times until alteration by the user The diagram below illus...

Page 5: ...Use the and buttons to adjust the minutes and press ENTER Use the and buttons to set the date and press ENTER Use the and buttons to set the month and press ENTER Use the and buttons to set the year...

Page 6: ...e the buttons and the programmer will return to preset factory settings General Information BATTERY The programmer is fitted with a non rechargeable long life battery which will maintain the programme...

Page 7: ...der 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 Tim...

Page 8: ...Email sales horstmann co uk Website www horstmann co uk Horstmann Controls Limited Bristol BS4 1UP Leaflet number P84362 Issue 1 8...