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This product is discontinued

Service interval programmer

ServicePlus S17R, is a single channel 7-day time-switch, part of a range of programmers and time-switches developed to facilitate compliance with Gas Safety (Installation and Use) Regulations 1998. Although not intended to replace the normal servicing regime, ServicePlus can act as a supplementary reminder to enable compliance.

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Model Replacement
ServicePlus S17 This unit uses the same backplate as C1727 and only requires simple wiring changes C1727


  • Control of most domestic gas or oil-fired central heating and hot water systems
  • Helps to confirm CP12 compliance for private/social landlords by service interval reminder
  • Combination (‘combi’) boiler systems
  • Stored hot water systems
  • Solid-fuel systems
  • Additional zone control


  • Can fully or partially shut down the system once a service period is overdue
  • Facilitates compliance with Gas Safety Regulation 36
  • Building Regs Part L compliant
  • Standard wall plate – simple to plug-in and replace
  • Direct replacement for many competitor products


  • Features an upgraded Back-lit display screen and incorporates an automatic GMT/BST clock
  • Service-interval safety check clock
  • Service period is set by installer using unique key code
  • 7 years no quibbles warranty


Contact rating 3(1) Amps 230V AC
Contact type Voltage-free with optional mains switched supply
Supply 230V AC 50Hz only
Pollution degree Degree 2
Dimensions 84 x 150 x 29mm
Case material Thermoplastic flame retardant
Class a software Type 1 Control
Operating temperature range 0°C to +40°C
Battery life Minimum 10 months continuous operation
Display Back-lit liquid crystal
Clock 12-hour am/pm
Displayed time adjustments 1-minute steps
Switched time adjustments 10-minute steps
Operating periods Per-day 3 per-day per channel. Separate programmes possible for each day of the week
Overrides 1-hour boost, one-hour extension to On period and Instant advance
Mounting 6 terminal plug wall plate
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