Horstmann CentaurPlus C27 Programmer Programmer with… (68934)

£ 51.99INC VAT

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Horstmann CentaurPlus C27 Programmer Programmer with Li-Ion Battery Back-Up (68934)

Separate timing. 5-wire installation. Override facility. Automatic BST/GMT time change. Boost function.

  • 7 Day Programmable
  • 1 Pre-Set Programme
  • 3 On / Off Periods per Day
  • Digital Display
  • Suitable for Gravity-Fed & Pumped Systems
  • 5-Wire Installation
  • Automatic BST/GMT Time Change
  • 2 Year Manufacturer's Guarantee (T&Cs Apply)

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£51.99INC VAT

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Horstmann CentaurPlus C27 Programmer Programmer with Li-Ion Battery Back-Up is rated 4.4 out of 5 by 51.
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Rated 4 out of 5 by from Well-featured Programmer Very straightforward replacement for old programmer. Wiring identical, only needed to change the backplate. Simple to set up times for C/H and H/W. Good clear display. Useful to have (removable) battery backup. Unable to comment on reliability as only in use for 1 week, but no problems so far.
Date published: 2021-03-29
Rated 4 out of 5 by from Horstmann C27 Boought as replacement for expired C27,which had lasted several years (10 at least). Easy to fit and mount. Initial programming can take a while if each day is different, but no different to other timers. Wire and terminal space is a little cramped if you have other items in circuit (like a room thermostat). I had to fit an additional relay because the electrical load of our oil boiler and pump exceeded the timers contact rating.
Date published: 2020-12-30
Rated 5 out of 5 by from Replaced good with even better Previous version has run perfectly for 19 years, so replaced with same, but it has now been improved with automatic time change for Summer/Winter times. Replaced in 2 minutes, then set the timings.
Date published: 2020-12-11
Rated 5 out of 5 by from Easy Install Brought this to replace an old Randal 103, quick and easy replacement for an item that was in stock at my local branch. Can't judge reliability as only just fitted.
Date published: 2020-10-11
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Can this be a direct replacement for the Horstmann 425?

Asked by: Anonymous

Would this unit replace an old TimeGaurd ETU2000?

Would this unit replace an old TimeGaurd ETU2000?
Asked by: Jonesy4747

is the C27 compatible with the C21

Asked by: tooi
Straight forward swap over. Just loosen the two screws underneath, pull old unit away and remove. New C27 simply slots into existing base, push home, tighten two bottom screws and all done (bar the programming) a doddle!!
Answered by: Zakboy
Date published: 2020-12-21

Five Wire verses two wire connention

I have an existing earlier model of this programmable thermostat which is conneced to the CH system by a two wire mains connection. Can the CentaurPlus C27 be connected in the same way as it indicates a five not two wire connection?
Asked by: Llangolfer
This is not a thermostat, its a 2 channel programmer for controlling your hot water and heating at independent times of the day, and as such, it will require at least 3, 4, or 5 wires connected to operate. Look instead at product 12157 for the 2 wire programmable thermostat.
Answered by: SparkyAH
Date published: 2020-03-04

Is this suitable for controlling immersion heater economy 7?

Asked by: JackBiker
No. This type of programmer is designed for switching a small load such as a boiler, circulating pump or zone valves with a maximum load of 3 Amps. A standard 3Kw Immersion heater would require a switching capability in excess of 13 Amps. A suitable timer would be the LAP 7-Day digital immersion timer, also available from Screwfix.
Answered by: andmc136
Date published: 2019-08-12
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Specification
Brand Horstmann
Central Heating Control Type Programmers
Display Type Digital Display
Installation Type 5-Wire Installation
Manufacturer Guarantee 2 Year Manufacturer's Guarantee (T&Cs Apply)
Model No CentaurPlus C27 Programmer
Pack Size 1
Pieces in Pack/Case 1
Power Voltage Supply 230 V
Product Depth 29 mm
Product Height 84 mm
Product Type Programmer with Li-Ion Battery Back-Up
Product Width 150 mm
Programme Facility 7 Day Programmable
Smart Compatibility Not Smart
Suitable System Suitable for Gravity-Fed & Pumped Systems
Switching Capacity 3 A
Temperature Range 0 to 40 °C