Horstmann, advanced simplicity

Transcription

1 @ Product Catalogue

2 Horstmann, advanced simplicity Control, it's what we're good at and in domestic central heating and hot water installations that means more accurate control of time and temperature all around the system. Sometimes the solution needs to be simple, like a room stat and timer installation or it can be more sophisticated requiring or channel electronic programmers which can independently handle hot water and separate heating zones. Our latest electronic room thermostats are clever too. Their latest thermostat technology is proven to save up to 0% in energy costs* by increasing the efficiency of the boiler firing regime. Wireless, mains or battery versions of our controls are available across the Horstmann range. Well worth checking out. Horstmann... Together, we're in control.

3 Contents Page Programmable Room Thermostats - 0 C-Stat -ZW / C-Stat 7-ZW C-Stat -B / C-Stat 7-B C-Stat -M / C-Stat 7-M ThermoPlus AS-RF 7 ThermoPlus AS / AS / PRT 9 Time Controls - ChannelPlus ChannelPlus H7X ChannelPlus H7X CentaurPlus 7 CentaurPlus ZW 9 ServicePlus Thermostats - 0 HRT-ZW / HRT-B HRT-A / HTT / HFT 7 HCT 9 Motorised Zone Valves - ZonePlus Z Series lectric Water Heating - lectrisaver lectronic 7 conomy 7 Quartz 7 BX BX

4 Additional Information - lectric Water Heating Controls Schematic diagrams Internal wiring diagrams - TPI 7 Optimum Start 8 Programmer replacement and wiring guide 9 - Thermostat compatibility guide Programmable thermostat compatibility guide

5 C-Stat -ZW and 7-ZW Wireless Z Wave programmable room thermostat with mains powered receiver Programmable room thermostats are widely recognised as one of the best ways in which to control central heating. Our C-Stat programmable room thermostats have a large display and intuitive user interface, making them easy to set up and use. C-Stat uses a sophisticated time proportional integral (TPI) algorithm for accurate temperature control and energy efficiency. The latest Z Wave wireless technology is employed for superior reliability C-Stat is the ideal control for combi boilers, extra heating zones or for retro fitting into an existing system with no room stat. Features Battery powered wireless room thermostat Mains powered receiver voltage free contacts Choice of hour or 7 day versions Up to six target temperature settings per day Menu driven programming via large back-lit display, with prompts to aid the user Automatic daylight saving time adjustment Target temperature and actual room temperature indication Temporary temperature override Holiday programme Tamperproof security code Optional optimum start facility Temperature settings - c to 0 c

6 Specification C-Stat -ZW and 7-ZW Reduced energy costs o additional wiring when installing the Z Wave wireless version in existing installations o disruption to decor Reliable Z Wave wireless connection Battery and Mains versions are also available in this range Thermostat POWR SUPPY COTACT TYP WIRIG COFIGURATIO COTACT VOTAG RATIG TMPRATUR DIFFRTIA TMPRATUR ACCURACY DSIG STADARDS DIMSIOS COSUR COSUR PROTCTIO POUTIO DGR ISUATIO CASS OPRATIG TMPRATUR RAG COCK STTIGS PR DAY TRASMITTR FRQUCY RCIVR CATGORY POWR CASS x AA Batteries Micro-disconnection Voltage free c/o contacts (SPDT) 0V AC 0Hz (0V dc) 0. c +/- 0. c at c BS x 0 x.mm Flame retardant thermoplastic IP0 Degree Double insulated 0 C to 0 c / Hour with Automatic BST / GMT adjustment target temperature settings per day 88 MHz Category Class B Receiver POWR SUPPY COTACT TYP VOTAG RATIG OPRATIG TMPRATUR RAG ISUATIO CASS RATD IMPUS VOTAG POUTIO DGR COSUR PROTCTIO DIMSIOS MOUTIG 0V AC 0Hz Micro-disconnection, Voltage Free Contact () Amps 0V AC 0 C to 0 c Double insulated Cat 00V Degree Flame retardant thermoplastic 8 x 8 x.mm terminal plug in wall plate

7 C-Stat -B and 7-B Battery powered programmable room thermostat Programmable room thermostats are widely recognised as one of the best ways in which to control central heating. Our C-Stat programmable room thermostats have a large display and intuitive user interface, making them easy to set up and use. C-Stat uses a sophisticated time proportional integral (TPI) algorithm for accurate temperature control and energy efficiency. Being battery powered, these models are suitable for replacing most existing room thermostats. C-Stat is ideal for combi boilers, extra heating zones or upgrading older inefficient room thermostats. Features Voltage free contacts Choice of hour or 7 day versions Up to six target temperature settings per day Temperature Settings - c to 0 c Menu driven programming via large back-lit display, with prompts to aid the user Automatic daylight saving time adjustment Target temperature and actual room temperature indication Temporary temperature override Holiday programme Optional high and low temperature limits Tamperproof security code Optional optimum start facility

8 Specification C-Stat -B and 7-B Reduced energy costs Minimal boiler cycling and reduced flow temperatures through use of sophisticated TPI control algorithms Runs on standard AA type batteries o need for additional wiring when replacing an existing thermostat Frost protection setting Wireless and Mains versions are also available in this range POWR SUPPY COTACT TYP WIRIG COFIGURATIO COTACT VOTAG RATIG COTACT CURRT RATIG TMPRATUR DIFFRTIA TMPRATUR ACCURACY DSIG STADARDS DIMSIOS COSUR COSUR PROTCTIO POUTIO DGR ISUATIO CASS OPRATIG TMPRATUR RAG COCK STTIGS PR DAY MOUTIG x AA Batteries Micro-disconnection Voltage free c/o contacts (SPDT) 0V AC 0Hz (0V dc) 8A (A inductive) 0. c +/- 0. c at c BS x 0 x.mm Flame retardant thermoplastic IP0 Degree Double insulated 0 C to 0 C / Hour with Automatic BST / GMT adjustment target temperature settings per day terminal plug in wall plate

9 C-Stat -M and 7-M Mains powered programmable room thermostat Programmable room thermostats are widely recognised as one of the best ways in which to control central heating. Our C-Stat programmable room thermostats have a large display and intuitive user interface, making them easy to set up and use. C-Stat uses a sophisticated time proportional integral (TPI) algorithm for accurate temperature control and energy efficiency. Being mains powered these models won't need the batteries changing every two years. C-Stat M is ideal for control of combi boilers or extra heating zones where no thermostat has been fitted previously. Features Voltage free contacts Choice of hour or 7 day versions Up to six target temperature settings per day Menu driven programming via large back-lit display, with prompts to aid the user Automatic daylight saving time adjustment Target temperature and actual room temperature indication Temporary temperature override Holiday programme Tamperproof security code Optional optimum start facility Battery Reserve

10 Specification C-Stat -M and 7-M Reduced energy costs Minimal boiler cycling and reduced flow temperatures through use of sophisticated TPI control algorithms Frost protection setting o battery replacement required Wireless and Battery versions are also available in this range POWR SUPPY COTACT TYP WIRIG COFIGURATIO COTACT VOTAG RATIG COTACT CURRT RATIG TMPRATUR DIFFRTIA TMPRATUR ACCURACY IMPUS RATIG DSIG STADARDS DIMSIOS COSUR COSUR PROTCTIO POUTIO DGR ISUATIO CASS OPRATIG TMPRATUR RAG COCK STTIGS PR DAY MOUTIG 0V 0Hz Micro-disconnection Voltage free c/o contacts (SPDT) 0V AC 0Hz (0V dc) 8A (A inductive) 0. c +/- 0. c at c Category II 00V BS x 0 x.mm Flame retardant thermoplastic IP0 Degree Double insulated 0 C to 0 C / Hour with Automatic BST / GMT adjustment target temperature settings per day terminal plug in wall plate

11 ThermoPlus AS-RF Wireless Programmable Room Thermostat The ThermoPlus AS-RF is an intelligent wireless programmable thermostat, which transmits control signals to an RF receiver unit via Z-wave mesh radio technology. The ThermoPlus range was designed following research showing the difficulties visually or dextrally impaired people have whilst using heating controls, it is easy to install and easy to use. Perfect where installing additional wiring is difficult and where a straightforward easy to use programmable thermostat is required. Wireless radio frequency connection Colour coded, bright D Warm/ Cool display and Braille 7 markings on the main override buttons Preset clock with battery back-up Automatic BST / GMT time change Audible and tactile feedback Back lit CD display

12 Specification ASR-RF is a mains powered receiver for connecting where a mains supply is readily available. AS-RF thermostat transmits via Z wave mesh radio technology and is capable of operation in most domestic houses with an operating range of approximately 0 metres. Ideal for controlling combi boilers, it can be mounted in any suitable location without the need to disturb existing wiring or décor. Operates from standard AA batteries, with years+ life and separate clock battery. For day-to-day use only, buttons are needed. The centre 'Warm/Cool' button changes the temperature state and the '+' and '-' buttons provide fine user adjustment as well as audible feedback. ach adjustment is immediately reflected in changes to the bright red and blue D display. The built-in clock is programmed to the correct time during manufacture and a built-in calendar will automatically adjust for summer and winter time changes, so there's never any need for user adjustment. COTACT RATIG AC COTACT TYP SUPPY BATTRY TYP POUTIO DGR DOUB ISUATD COSUR PROTCTIO OPRATIG TMPRATUR RAG TMPRATUR COTRO RAG STADBY TMPRATUR CAS MATRIA DIMSIOS DISPAY COCK DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS OPRATIG PRIODS PR DAY PROGRAMM STTIGS OVRRID MOUTIG OPRATIG FRQUCY () Amps 0-0V Micro disconnection Voltage Free 0V AC 0Hz ithium + AA (ASRF) Degree Yes IP0 0 C to 0 C + C to +0 C + C to +0 C Thermoplastic flame retardant 0 x 90 x mm iquid Crystal, back lit Hour minute steps minute steps Warm per day Auto, Standby Instant Warm / Cool pin plate 88 MHz 8

13 ThermoPlus AS, AS & PRT Programmable Room Thermostats Mains and battery powered programmable room thermostats designed for ease of use with a unique button user interface. ThermoPlus allows a high and low temperature setting to be pre-programmed with simple user overrides available for the user. Despite the simple user interface ThermoPlus contains the latest TPI energy saving software and can make a significant contribution to saving energy. ThermoPlus has voltage free contacts and is ideal for use with combi boilers. Simple button operation Colour coded, bright D Warm / Cool display and 9 Braille markings on the main override buttons Preset clock Automatic BST/GMT time change Preset or custom heating profiles Back lit CD display Audible and tactile feedback Fixed hypothermia protection (PRT) Frost protection setting

14 Specification AS & PRT AS is mains powered for applications where a permanent mains supply is readily available. COTACT RATIG AC COTACT TYP PRT is identical to the AS but with a fixed hypothermia setting of C. SUPPY AS AS is battery powered for applications where no mains supply is readily available to operate the unit or an existing thermostat is being replaced. Additional features include standard AA batteries, years+ battery life and separate clock power back-up. Battery life is conserved by means of an 8 second auto power down mode to all indicator lights. RSRV BATTRY TYP POUTIO DGR DOUB ISUATD COSUR PROTCTIO OPRATIG TMPRATUR RAG TMPRATUR COTRO RAG STADBY TMPRATUR CAS MATRIA DIMSIOS DISPAY COCK DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS OPRATIG PRIODS PR DAY PROGRAMM STTIGS OVRRID MOUTIG () Amps 0-0V Micro disconnection Voltage Free AS/PRT 0V AC 0Hz AS x AA (R) batteries ithium battery Degree Yes IP0 0 C to 0 C + C to +0 C + C to +0 C Thermoplastic flame retardant 0 x 90 x mm iquid Crystal, back lit Hour minute steps minute steps Warm per day Auto, Standby Instant Warm / Cool AS/PRT pin plate AS Standard wall box fixing 0

15 ChannelPlus X Series lectronic Programmers A range of electronic programmers that offer up to four independent channels and feature a large, easily read display and simple menu driven programming. Three and four channel models are made for multiple zone control with single and two channel models used with combi boiler systems and stored hot water systems.,, or channels hour or 7 day Back-lit CD display Simplified menu driven programming Advance and boost on each channel Preset clock Automatic Winter / Summer time changes year warranty

16 Specification CHAPUS H7X Programmer with 7 day setting over four independent channels. Designed for use with fully pumped central heating systems using four separate zone valves in addition to many other applications. CHAPUS H7X Programmer with 7 day setting over three independent channels. Designed for use with fully pumped central heating systems using three separate zone valves. Meets zoning requirements of Part of the Building Regulations. CHAPUS H7VX The same as the H7X but with volt free contacts CHAPUS H7ZX Two channel with 7 day programming and independent timing of zone and zone. CHAPUS H7X Two channel with 7 day programming and independent timing of heating and hot water. CHAPUS HX Two channel with hour programming and independent timing of heating and hot water. CHAPUS H7X Single channel time switch with full 7 day programming CHAPUS HX COTACT RATIG COTACT TYP SUPPY POUTIO DGR CASS A SOFTWAR COSUR PROTCTIOS DOUB ISUATD OPRATIG TMPRATUR RAG BATTRY IF CAS MATRIA DIMSIOS DISPAY COCK DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS PROGRAMM OPTIOS () Amps 0V AC Micro-disconnection Voltage free (not H7X) 0V 0 Hz Degree Type Control IP0 Yes 0 C to +0 c ithium Thermoplastic flame retardant 0 x x 7 mm Back lit liquid crystal hour or hour AM/PM minute steps 0 minute steps O, OFF, All Day, Auto & Holiday OPRATIG PRIODS PR DAY for each channel OVRRID (ACH CHA) or hour boost or hour extension to O period Instant advance MOUTIG 9 pin wall fixing plate Single channel time switch with hour programming. Voltage free contacts make both the H and H7 units ideal for combi boilers.

17 ChannelPlus H7X Series lectronic Programmers A three channel programmer giving independent timing of each channel on a 7 day programme. Ideal for the control of two heating zones as well as hot water via separate thermostats and zone valves. Back-lit CD display Preset clock Automatic Winter / Summer time changes Simplified menu driven programming Advance and boost on each channel Full 7 day operation Volt free version year warranty

18 Specification ChannelPlus H7X Series Programmer with 7 day setting over independent channels (e.g. Zones, and or hot water, heating and ) Designed for use with fully pumped central heating systems using three separate port zone valves. Part of the Building Regulations requires properties above 0 sq m floor space to have two separate heating zones. This is an ideal application for the H7X. Also available: ChannelPus H7VX The same as the H7X but with volt free contacts COTACT RATIG COTACT TYP SUPPY POUTIO DGR COSUR PROTCTIO DOUB ISUATD OPRATIG TMPRATUR RAG BATTRY IF CAS MATRIA DIMSIOS DISPAY COCK DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS PROGRAMM OPTIOS () Amps 0V AC Micro-disconnection Voltage free (not H7X) 0V 0 Hz Degree IP0 Yes 0 C to 0 c ithium Thermoplastic flame retardant 0 x x 7 mm Back lit liquid crystal hour or hour AM/PM minute steps 0 minute steps O, OFF, All Day, Auto & Holiday OPRATIG PRIODS PR DAY for each channel OVRRID (ACH CHA) or hour boost or hour extension to O period Instant advance MOUTIG 9 pin wall fixing plate RATD IMPUS VOTAG Cat 00V POUTIO DGR Degree COSUR PROTCTIO Flame retardant thermoplastic

19 ChannelPlus H7X Series lectronic Programmers A four channel version of the ChannelPlus programmer for larger dwellings, featuring zone control of Hot Water and Heating as well as many other zoning applications including Underfloor heating. Full 7 day operation over independent channels Back-lit CD display Preset clock Automatic Winter / Summer time changes Simplified menu driven programming Advance and boost on each channel year warranty

20 Specification ChannelPlus H7X Series A user friendly channel programmer designed for domestic use, providing advanced, easily programmed features. The latest Building Regulations Domestic Heating Compliance Guide requires each heating zone that exceeds 0 sq m to have independent time and temperature control. COTACT RATIG COTACT TYP SUPPY POUTIO DGR CASS SOFTWAR COSUR PROTCTIO DOUB ISUATD OPRATIG TMPRATUR RAG BATTRY IF CAS MATRIA DIMSIOS DISPAY COCK DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS PROGRAMM OPTIOS () Amps 0V AC Micro-disconnection 0V 0 Hz Degree Type Control IP0 Yes 0 C to 0 c ithium Thermoplastic flame retardant 0 x x 7 mm Back lit liquid crytal hour or hour AM/PM minute steps 0 minute steps O, OFF, All Day, Auto & Holiday OPRATIG PRIODS PR DAY for each channel OVRRID (ACH CHA) or hour boost or hour extension to O period Instant advance MOUTIG 9 pin wall fixing plate RATD IMPUS VOTAG Cat 00V POUTIO DGR Degree COSUR PROTCTIO Flame retardant thermoplastic

21 CentaurPlus Series lectronic time controls CentaurPlus single channel time switches and two channel programmers are highly popular and affordable with the latest Series units now featuring an upgraded back lit display screen and incorporating an automatic GMT/BST clock. All models feature an industry standard six pin backplate which permits easy replacement/upgrade with the C and C7 controls being suited for use with combi boilers and the C and C7 versions for non combi boiler installations where a hot water cylinder is in use. hour and 7 day options Up to O/OFF's a day Hot water boost and central heating advance Programme options: O, OFF, A DAY or AUTO Mains powered with battery back up Standard wall plate Simple to plug in and replace 7

22 Specification CentaurPlus C7 Two channel 7 day control allowing independent time control of central heating and hot water COTACT RATIG COTACT TYP SUPPY POUTIO DGR CASS A SOFTWAR OPRATIG TMPRATUR RAG BATTRY IF CentaurPlus C Simple, low cost hour version of the C7 CentaurPlus C7 CAS MATRIA Single channel, 7 day time control suitable for combi boiler applications, an extra heating zone or the pump on a solid fuel boiler. DIMSIOS DISPAY COCK CentaurPlus C DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS OPRATIG PRIODS CentaurPlus C CentaurPlus C OVRRID 7 Day Hour Channel CentaurPlus C7 CentaurPlus C7 Two Single Channel Simple, low cost version of the C7 MOUTIG () Amps 0V AC Micro-disconnection Voltage free (C & C7 only) 0V AC 0Hz only Degree Type Control 0 C to +0 C Minimum 0 months continuous operation Thermoplastic flame retardant 8 x 0 x 9mm Back lit liquid crystal Hour AM/PM Auto BST/GMT changeover minute steps 0 minute steps C & C7 per day C & C7 per day for CH & per day for HW C7 & C7 Separate programmes possible for each day of the week C & C7 hour boost, hour extension to O period & Instant Advance C & C7 hour boost (HW only), hour extension to O period (HW only) & Instant advance (CH only) terminal plug in wall plate 8

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24 Specification CentaurPlus ZW The CentaurPlus ZW timeswitch and thermostat communicate using proven Z wave wireless technology with the installation highly suited for use with combi boilers. It is ideal as a system upgrade, in most cases requiring no wiring. The back plate on the CentaurPlus ZW is an industry standard pin unit usually enabling a simple push fit replacement. The HRT-ZW is battery powered and requires no disruptive wiring, enabling it to be positioned in the most efficient area of a room. COTACT RATIG COTACT TYP SUPPY POUTIO DGR CASS A SOFTWAR OPRATIG TMPRATUR RAG BATTRY IF CAS MATRIA The thermostat incorporates the latest TPI energy saving software and Z wave wireless technology. It features a back lit display, conventional knob temperature adjustment, set temperature display and displays the actual room temperature at a touch of the dial. CentaurPlus ZW combined wireless room stat and timeswitch Suitable for combi boilers Volt free contacts Automatic BST/GMT time change Back lit display Boost and Advance Helps to meet Part of Building Regs Built in Z wave receiver Industry standard terminal wall plate ZW wireless technology TPI energy saving software Clear backlit display Temperature range -0 C Battery operated for wire free installation DIMSIOS DISPAY COCK DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS OPRATIG PRIODS PR DAY OVRRID MOUTIG TRASMITTR FRQUCY () Amps 0V AC Micro-disconnection Voltage free 0V AC 0Hz only Degree Type Control 0 C to +0 C Minimum 0 months continuous operation Thermoplastic flame retardant 8 x 0 x 9mm Back lit liquid crystal Hour AM/PM Auto BST/GMT changeover minute steps 0 minute steps per day (Separate programmes possible for each day of the week) hour boost, hour extension to O period & Instant Advance terminal plug wall plate 88MHz HRT-ZW ROOM THRMOSTAT POWR SUPPY x AAA alkaline batteries OPRATIG TMPRATUR 0 C to +0 C RAG TMPRATUR RAG C to 0 C CAS MATRIA Thermoplastic flame retardant DIMSIOS 8 x 8 x.mm RATD IMPUS VOTAG Cat 00v COSUR PROTCTIO Ip0 TRASMITTR FRQUCY 88MHz DSIG STADARD

25 ServicePlus Series Service Interval Programmers ServicePlus is a range of programmers and time switches developed to facilitate compliance with the Gas Safety (installation and Use) Regulations 998. Although not intended to replace the normal servicing regime, ServicePlus can act as a supplementary reminder to enabling compliance. Features an upgraded back lit display screen and incorporates an automatic GMT/BST clock. Service interval safety check clock Can fully or partially shut down the system once a service period is overdue Service period is set by installer using unique key code Facilitates compliance with Gas Safety Regulation Building Regs Part compliant

26 Specification The ServicePlus service interval timer range is based on the popular Centaurplus range of domestic central heating programmers and timeswitches. All the functions and facilities available in the CentaurPlus range are also available in the equivalent ServicePlus model..g. S7R is based on C7, S7R is based on C7 etc. The ServicePlus range of programmers and time switches are designed to carry out a full or partial boiler shutdown once the servicing date has become overdue. The Installer can set the ServicePlus so that either a full shutdown will occur after a 8 day warning period of the boiler service becoming due or partial shutdown can be selected where a minute period of heating and hot water will occur every hour. These minute periods will occur every hour but never consecutively from one hour to the next. If programmed on installation, the minute 'On' periods will reduce the effectiveness of the heating system so that it becomes uncomfortable for the occupier without it providing no heating at all. This should have the effect of encouraging the householder to call the service engineer to check the system. COTACT RATIG COTACT TYP SUPPY POUTIO DGR CASS A SOFTWAR OPRATIG TMPRATUR RAG BATTRY IF CAS MATRIA DIMSIOS DISPAY COCK DISPAYD TIM ADJUSTMTS SWITCHD TIM ADJUSTMTS OPRATIG PRIODS PR DAY (For more detailed information on these products, please refer to CentaurPlus Series ) S7R 7 day programmer SR hour programmer OVRRID S7R 7 day timeswitch SR hour timeswitch CentaurPlus S CentaurPlus S Minimum 0 months continuous operation Thermoplastic flame retardant 8 x 0 x 9mm Back lit liquid crystal Hour AM/PM minute steps 0 minute steps S & S7 per day S & S7 per day for CH & per day for HW S7 & S7 Separate programmes possible for each day of the week S & S7 hour boost, hour extension to O period & Instant Advance S & S7 hour boost (HW only), hour extension to O period (HW only) & Instant advance (CH only) terminal plug wall plate 7 Day Hour Channel CentaurPlus S7 CentaurPlus S7 Two Single Channel MOUTIG () Amps 0V AC Voltage free (S & S7 only) with optional mains switched supply 0V AC 0Hz only Degree Type Control 0 C to +0 C

27 Series lectro-mechanical Programmers series mechanical programmers are the simplest way to control hot water and central heating in the home. Simple to use with easily understood settings adjusted in seconds Rotating hour dial and tappet arrangement asy to install using a nine pin backplate Advance control to allow manual override O or OFF Programme options: O, OFF, All Day or Auto

28 Specification DIADM TIARA & DIADM This twin circuit, hot water and central heating programmer, with indicator lights, has programmes available for fully pumped systems, including independent programming of heating and hot water and 0 programmes for gravity hot water / pumped heating systems. The Diadem is ideal for gravity systems and fully pumped systems with zone valves. TIARA The Tiara has all the capability and features of the Diadem, but without the indicator lights. The Tiara is ideally suited for both gravity systems and fully pumped systems with either mid-position or zone valves. COTACT RATIG COTACT TYP MOTOR POWR COSUMPTIO DIRT PROTCTIO MOISTUR PROTCTIO COSUR PROTCTIO MAXIMUM OPRATIG TMPRATUR DIA STTIG DIMSIOS MOUTIG COROT COTACT RATIG COTACT TYP The Coronet is particularly suitable for combi boiler systems, warm air systems and extra zone control. Indicator ights Immersion Heaters Independent CH / HW Gravity HW Pumped Systems Combi Boilers O / OFF twice a day O All Day Permanent O/OFF Coronet Twin Circuit Single Circuit MOTOR Tiara O, OFF Tappets Min. O/OFF period mins mm x 07mm x 9mm 9 Pin wall fixing plate COROT A single circuit timeswitch for straight forward, accurate time control. Diadem Double circuit (.) Amps 0V AC Micro-disconnection changeover Voltage Free Synchronous 0V 0Hz Double Insulated.W ormal Situations Ordinary Ip0 + C POWR COSUMPTIO DIRT PROTCTIO MOISTUR PROTCTIO COSUR PROTCTIO MAXIMUM OPRATIG TMPRATUR DIA STTIG DIMSIOS MOUTIG Single circuit () A 0V AC Micro-disconnection changeover Voltage Free Synchronous 0V 0Hz Double Insulated.W ormal Situations Ordinary Ip0 + C O, OFF Tappets Min. O/OFF period mins mm x 07mm x 9mm 9 Pin wall fixing plate

29 HRT-ZW and HRT-B lectronic Room Thermostats Wireless or wired, this range of purpose designed room thermostats from Horstmann offer the latest energy saving control technology combined with established Horstmann design and manufacturing expertise, making them suitable for use in most types of heating system. They are also perfect partners for use with Horstmann Programmers and Zone valves. Wireless or wired (battery operated) versions TPI temperature control software Clear backlit digital display Temperature range -0 C asy to install and use

30 Specification HRT-ZW with ASR-ZW receiver Wireless Z-wave electronic room thermostat and ASRZW receiver with TPI energy saving software avoids disruptive and time consuming wiring compatible with most heating systems. With proven Z-wave wireless technology using the 88.MHz operating frequency, the thermostat unit features a constant RF status display with its receiver being mains powered with volt free contacts. HRT-B The HRT-B is a wired battery operated room thermostat with TPI energy saving software for use with new installations or as a replacement for existing room thermostats. HRT-ZW POWR SUPPY POUTIO DGR TMPRATUR ACCURACY TMPRATUR RAG OPRATIG TMPRATUR RAG CAS MATRIA DIMSIOS RATD IMPUS VOTAG COSUR PROTCTIO DSIG STADARD TRASMITTR FRQUCY x AAA alkaline batteries Degree +/- 0. C C - 0 C 0 C - 0 C Thermoplastic flame retardant 8 x 8 x.mm Cat 00v IP MHZ ASR-ZW The HRT-B has amp volt free change over contacts making it ideal for use with combi boilers as well as conventional mains operated equipment. POWR SUPPY COTACT TYP Designed to look good, these thermostats will out perform many older styles of thermostat and can often produce savings in the order of 0% over and above those achieved by traditional units using older technology. COTACT RATIG POUTIO DGR OPRATIG TMPRATUR RAG CAS MATRIA The TPI settings are adjustable for Gas, Oil and lectric systems and the display shows C resolution, heating O symbol, target and actual temperatures at the touch of the dial and an energy saving back light that switches off after 7 seconds. DIMSIOS RATD IMPUS VOTAG COSUR PROTCTIO Available in wireless and wired versions for new and replacement situations there is a Horstmann thermostat to suit most installations. HRT-B The wireless version employs the latest Z-wave radio frequency (RF) technology resulting in a highly reliable and trouble free wireless connection with minimal setting up procedures. COTACT TYP Thermostat battery life is in excess of two years using standard AAA batteries which are supplied. A battery low indication tells the user when the batteries need changing. COTACT RATIG POUTIO DGR TMPRATUR ACCURACY TMPRATUR RAG CAS MATRIA POWR SUPPY DIMSIOS RATD IMPUS VOTAG COSUR PROTCTIO DSIG STADARD 0 V AC 0 Hz Micro disconnection Voltage free () Amps 0 V AC Degree 0 C - 0 C Thermoplastic flame retardant 8 x 8 x.mm Cat 00v IP0 x AAA alkaline batteries Micro disconnection Voltage free changeover () Amps 0 V AC Degree +/- 0. C C - 0 Thermoplastic flame retardant 8 x 8 x.mm Cat 00v IP

31 HRT-A, HFT and HTT Mains Operated lectronic Room Thermostats This range of purpose designed room thermostats from Horstmann offer the latest energy saving control technology combined with established Horstmann design and manufacturing expertise. This makes them suitable for use in most types of heating system that respond to a 0 volt mains electrical On/Off signal. They are also perfect partners for use with Horstmann Programmers and Zone valves. 0 volt mains operation TPI temperature control software Standard, Frost and Tamperproof versions asy to install and use Designed to look good, these thermostats will out perform many older styles of thermostat and can often produce savings in the order of 0% over and above those achieved by traditional units using older technology. The temperature control accuracy of +/- 0. C and different TPI settings for Gas, Oil and lectric systems will reduce the temperature swing that normally occurs with older style thermostats. As a consequence these thermostats will help to save energy as the control algorithm allows the boiler to operate in condensing mode for longer periods. 7

32 Specification HRT-A Room Thermostat Mains powered, electronic unit with TPI technology for new and replacement installations. Temperature setting range -0 C POWR SUPPY COTACT RATIG COTACT TYP POUTIO DGR TMPRATUR ACCURACY TMPRATUR RAG HTT Tamper proof Room Thermostat A tamper proof version of the HRT-A for use in public areas or other situations where subsequent temperature adjustment is not required/desirable. Internal setting dial Temperature setting range 0-0 C CAS MATRIA DIMSIOS RATD IMPUS VOTAG COSUR PROTCTIO DSIG STADARD 0v 0Hz () Amps 0V AC Micro-disconnection Degree +/- 0. C (at C with 0. amp load) HRT-A -0 C HTT 0-0 C HFT 0-0 C Thermoplastic flame retardant 8 x 8 x.mm Cat 00v IP HFT Frost Thermostat lectronic mains operated frost protection thermostat. nsures heating will switch on whenever frost conditions are detected. Internal setting dial Temperature setting range 0-0 C 8

33 HCT Hot Water Cylinder Thermostat This cylinder thermostat is fitted to the hot water cylinder to ensure that water temperature is controlled to a safe temperature whilst also saving energy by stopping uncontrolled heating of the hot water. This type of cylinder stat is intended for use as part of a fully pumped heating and hot water system in conjunction with motorised zone valves a room thermostat and a two channel central heating programmer. 0V mains operation Adjustable temperature range 0 C to 90 C Amp changeover (S.P.D.T.) contacts Switching differential of approximately 8 C Bimetallic sensor system 9

34 Specification Cylinder Thermostat HCT With an adjustable temperature range of between 0 C to 90 C, the Horstmann cylinder thermostat is suitable for mounting on either domestic hot water cylinders or large heating pipes. COTACT COFIGURATIO OPRATIG VOTAG SWITCH CURRT TMPRATUR RAG SWITCHIG DIFFRTIA COSUR PROTCTIO SSOR SYSTM DIMSIOS SPDT 0/0V 0/0Hz 0V AC Amps maximum +0 c to +90 C +8 C Approx IP0 Bimetallic 0 x 70 x mm 0

35 ZonePlus Z Series Motorised Valves A range of motorised valves that combine proven controls technology with the latest Horstmann design features, permitting easy installation and maintenance. There are models in the range: mm and 8mm port spring return valves and a mm port mid position diverter valve. asily replaceable actuator Industry standard fittings and wiring xtra long. metre cable Hansen Class F Synchron motor

36 Specification ZonePlus Z COTACT AD POWR SUPPY POWR COSUMPTIO AD SUPPID mm mid-position diverter valve complete with compression fittings. ZonePlus Z mm spring return zone valve with auxiliary switch complete with compression fittings. ZonePlus Z8 8mm spring return zone valve with changeover auxiliary switch complete with compression fittings. MAXIMUM AMBIT TMPRATUR MAXIMUM FUID TMPRATUR MAXIMUM DIFFRTIA PRSSUR MAXIMUM STATIC PRSSUR MATRIAS BA COVR VAV BODY PIP FITTIG SIZ Port ZonePlus Z Port mm ZonePlus Z8 ZonePlus Z 8mm Amp 0V AC 0V 0Hz W. Metre, Industry Standard colour coding. 0 C 88 C 0. bar 8. bar thylene Propylene Dio Mono (PDM) Thermoplastic Brass Z & Z mm compression (supplied) Z8 8mm compression (supplied)

37 lectrisaver lectronic Timer The lectrisaver is a simple push button electronic timer that saves energy by remembering to switch off an appliance when you might forget Suitable for loads up to kw, lectrisaver is a perfect boiler override or extension timer and can also be used on electrical equipment such as panel heaters, immersion heaters, heated towel rails and oil filled radiators. Flush or surface mounting Wiring is simple with easy access terminals

38 Specification lectrisaver COTACT RATIG Simply press the boost button and walk away, safe in the knowledge that if you forget, lectrisaver won't The kw rating makes lectrisaver suitable for use with immersion heaters with a range of applications in shops, offices, schools, church halls, student accommodation and all around the home. Oil fired radiators Towel rails SUPPY POUTIO DGR COSUR PROTCTIO SHOCK PROTCTIO IV PARTS OPRATIG TMPRATUR RAG DIMSIOS Boiler override Panel heaters There are three lectrisaver models which offer preset time periods minutes minutes - - hours MOUTIG Amps 0V AC Suitable for loads up to kw 0V 0Hz Degree IP0 Class nclosed 0 c to C 87mm x 87mm x mm (Flush mounting) or mm (Surface mounting) Single gang moulded box (Min. mm deep, not supplied)

39 lectronic 7 Series Immersion Heater Control The Horstmann lectronic 7 is the digital equivalent to the renowned Horstmann conomy 7 Quartz timer and is designed for use with conomy 7 and other more recent cheap rate tariff arrangements. Where hot water is heated by off peak electricity it is important that the immersion heater controller offers ease of use coupled with the most efficient performance. This is where the Horstmann lectronic 7 Series controller comes into its own. Compatible with most cheap rate or off peak tariff structures, the lectronic 7 is fully interchangeable with all past and present Horstmann conomy 7 controllers Built in clock automatic Summer / Winter time change Up to three off peak settings per hours Programmable and manual boost Programme security feature Suitable for use with single, dual or twin element immersion heaters

40 Specification lectronic 7 Series The lectronic 7 is designed to control one or two kw immersion heaters, utilizing off peak electricity tariffs to provide a tank full of hot water each morning. Additional off peak settings are available to take advantage of the latest off peak tariff arrangements. A boost button is provided to top up the hot water if supplies are running low and an automatic boost setting to provide a pre-programmed daily boost is also available. The lectronic 7 Series is interchangeable with previous conomy 7 controllers using the standard size conomy 7 wall box and plug in connectors. A lithium battery provides more than adequate back up to maintain time and programme settings in the event of a power failure. COTACT RATIG COTACT TYP SUPPY POUTIO DGR MOISTUR PROTCTIO COSUR PROTCTIO SHOCK PROTCTIO IV PARTS OPRATIG TMPRATUR RAG BATTRY RSRV DIMSIOS COCK PROGRAMM OPTIOS BAB APPROVD Amps 0V AC Suitable for immersion heaters up to kw Micro-disconnection on control Disconnection to immersion heaters on double-pole rocker switch 0V 0Hz Degree ormal situations Ordinary IP0 Class nclosed 0 c to C Approximately years total power disconnection 70 x x 0 mm (xcluding rocker switch) AM/PM Indication Winter/Summer indication OFF PAK - Up to On/Off time periods BOOST Programmable automatic boost and one hour manual boost Yes

41 conomy 7 Quartz Immersion Heater Control Designed for use with conomy 7 off peak rate overnight electricity, the conomy 7 Quartz is the standard by which all other water heating controls are judged and is the alltime best seller in water heating controls. Quartz controlled within 0 minutes a year Rechargeable battery keeps time during power interruptions Summer and winter time settings instantly visible arge terminals and back box for easy installation Indicator lights show whether on-peak or off-peak power is being used Up to 0 minute boost means extra hot water at any time Industry standard wall box and connections 7

42 Specification conomy 7 Quartz A proven, reliable and accurate unit, the conomy 7 Quartz is easy to install and set, providing a tankful of hot water to start each day utilizing conomy 7 off peak rate overnight electricity. The manual boost timer provides extra hot water in the day time should it be needed. COTACT RATIG COTACT TYP 7 Quartz Hour The 7 Quartz hour model has the same specification as the conomy 7 Quartz but with 0 0 minutes boost timer. SUPPY POUTIO DGR MOISTUR PROTCTIO COSUR PROTCTIO SHOCK PROTCTIO IV PARTS IMPUS RATIG OPRATIG TMPRATUR RAG BATTRY RSRV DIMSIOS COCK PROGRAMM OPTIOS BAB APPROVD Amps 0V AC Suitable for immersion heaters up to kw Micro-disconnection on control Disconnection to immersion heaters on double-pole rocker switch 0V 0Hz Degree Ordinary IP0 Class nclosed 000V 0 c to + C 0 hours 70 x x 0 mm (xcluding switches) AM/PM Indication Winter/Summer indication OFF PAK Adjustable between ½ & 7 hours BOOST conomy 7 Quartz 0-0 minutes 7 Quartz Hour 00 minutes Yes 8

43 BX000 Water Heating Boost Control This simple boost control is intended for use with electric water heating systems where the immersion heater(s) are controlled by the lectricity Company's Radio Teleswitch, Radio Telemeter or Tariff time switch. The BX000 allows the user to 'top up' the hot water if extra supplies are needed during the day time with the main water heating taking place overnight using off peak electricity. Makes the most effective use of the latest cheap-rate tariff structures, electronically hour or hour boost Always gives priority to off-peak supply 9

44 Specification BX000 Automatically cancels any boost that has been selected prior to the off-peak supply becoming available Indicator lights show when 'boost' or 'off-peak' are operational Incorporates two double pole switches: one for hour supply: one for off-peak (cheap rate) supply Accepts all incoming and outgoing wiring for single, dual or two separate kw immersion heater applications COTACT RATIG COTACT TYP POWR SUPPY POUTIO DGR COSUR PROTCTIO SHOCK PROTCTIO IV PARTS OPRATIG TMPRATUR RAG TIM PRIOD DIMSIOS BRITISH STADARDS Amps 0V AC Suitable for immersion heaters up to kw Disconnection to immersion heater on double-pole switch 0 V 0Hz Degree IP0 Class nclosed 0 C to C or hours 70 x x mm Designed to meet BS

45 7BX Water Heating Boost Control This simple boost control is intended for use with electric water heating systems where the immersion heater(s) are controlled by the lectricity Company's Radio Teleswitch, Radio Telemeter or Tariff time switch. The 7BX allows the user to 'top up' the hot water if extra supplies are needed during the day time with the main water heating taking place overnight using off peak electricity. Designed to accept wiring from both hour and off peak circuits Adjustable 0-0 minute run-back boost timer Simple to install and use

46 Specification 7BX Simple to install and use Boost period adjustable between 0 and 0 minutes eon indicator shows when boost timer is running Can be used with one or two immersion heaters Suits earth-leakage circuit breaker installations COTACT RATIG COTACT TYP POWR SUPPY POUTIO DGR COSUR PROTCTIO SHOCK PROTCTIO IV PARTS OPRATIG TMPRATUR RAG TIMR BOOST DURATIO DIMSIOS BRITISH STADARDS Amps 0V AC Suitable for immersion heaters up to kw Disconnection to 'off peak' immersion heater on double-pole switch 0 V 0Hz Degree IP0 Class nclosed 0 C to C 0-0 minutes 70 x x mm Designed to meet BS BAB APPROVD

47 lectric Water Heating Controls - Schematic System Diagrams These diagrams show the schematic installation wiring for each of the Horstmann electric water heating controls 7 & 7Q Single element immersion heater installation consumer unit Immersion heater circuit 7 & 7Q Twin element immersion heater installation consumer unit Immersion heater circuit Boost lectricity Company's equipment 7 & 7Q Dual element immersion heater installation consumer unit ight Rate lectricity Company's equipment Immersion heater circuit ight Rate BX000 & 7BX Single element immersion heater installation hr consumer unit lectricity Company's equipment Boost Off-peak consumer unit lectricity Company's equipment BX000 Twin element immersion heater installation 7BX Twin element immersion heater installation hr consumer unit hr consumer unit Boost Double pole isolator lectricity Company's equipment lectricity Company's equipment ight Rate ight Rate Off-peak consumer unit Boost Off-peak consumer unit Installation and connection must be carried out by a suitably qualified person and in accordance with the current edition of the IT wiring regulations

48 Internal Wiring Diagrams Programmers and Timeswitches These diagrams are intended for guidance only and show the switched outputs for each model. Full system wiring diagrams are supplied with each set of installation instructions. ChannelPlus HX / H7X ChannelPlus H7X O MAIS SUPPY OFF O CH ZO OFF O CH ZO OFF HW O COM O O O COM O COM O MAIS SUPPY CH ZO CH ZO COM HW When used to control MAIS VOTAG SYSTMS Terminals,, and should be electrically linked by means of a suitable piece of sleeved conductor When used to control OW VOTAG SYSTMS these links MUST OT be fitted COM O 0V 0Hz COMM OFF O The CentaurPlus ZW has voltage free contacts. A link - is required for mains voltage applications CentaurPlus C / C7 0V CentaurPlus C7-ZW MAIS SUPPY ChannelPlus H7X ChannelPlus H7VX CH OFF TIMD OUTPUT CH O MAIS SUPPY OFF HW OFF O HW O IV UTRA ARTH ChannelPlus HX / H7X / H7ZX 0HZ COMM OFF CentaurPlus C / C7 O 0V 0HZ HW OFF CH OFF HW O CH O Installation and connection must be carried out by a suitably qualified person and in accordance with the current edition of the IT wiring regulations

49 Tiara / Diadem O MAIS SUPPY OFF O TIMD OUTPUT Coronet OFF 0V 0Hz O MAIS SUPPY TIMD OUTPUT ServicePlus SR & ServicePlus S7R ServicePlus SR & ServicePlus S7R MAIS IV TO COMM I BOIR OFF TIMD OUTPUT O 0V 0HZ HW OFF CH OFF HW O CH O Thermostats These diagrams are intended for guidance only and show the switched outputs for each model. Full system wiring diagrams are supplied with each set of installation instructions. Programmable Room Thermostats C-Stat B C-Stat M CA COMMO 0V MAIS SUPPY CA FOR HAT CA FOR HAT C-Stat ZW Receiver ThermoPlus AS / PRT Internal lectronics 0V 0Hz COMM OFF O 0V 0HZ COMM O Installation and connection must be carried out by a suitably qualified person and in accordance with the current edition of the IT wiring regulations

50 ThermoPlus AS ThermoPlus AS-RF Receiver IV (I).V OAD (HAT) OT USD 0V (PARKIG) 0Hz COMM OFF O The reciver has Voltage Free contacts. A link between ive and terminal is required for mains Voltage applications CentaurStat /7 HCT - Cylinder Stat (PARKIG) OAD (COO) OAD (HAT) (I) COM SAT CA Room Thermostats HRT - A / HTT / HFT HRT-B 0V 0Hz Mains supply Switched live (call) COMMO CA FOR HAT HRT-ZW Receiver HRT Internal lectronics 0V 0Hz COMM OFF OAD (HAT) DO OT US (I) O The receiver has Voltage Free contacts A link between live and terminal is required for mains voltage applications. Installation and connection must be carried out by a suitably qualified person and in accordance with the current edition of the IT wiring regulations

51 TPI energy saving software where it is used the benefits Time Proportional Integral (TPI) energy saving software is key to the performance of thermostats in a number of Horstmann's central heating controls notably the HRT range of room thermostats, C-Stat programmable room thermostats, the CentaurPlus ZW combined wireless room 'stat and time-switch and the ThermoPlus range of easy-to-use programmable room thermostats. TPI has proven energy saving features that have been independently assessed (by TACMA) to save the householder up to 0% annually on fuel costs. So, how does it work? Traditionally, room stats use either mechanical bellows or thermally operated switches. These are much less accurate in maintaining the room temperature at the 'set point' as they produce fairly large swings of temperature caused by the differential between the on and off switch point. In turn, this causes the boiler to fire inefficiently and often over-heat the room. A thermostat controlled by TPI software makes a series of precise calculations once it has entered the control or proportional band. When set to cycles per hour the software will calculate the amount of heat needed during each 0 minute period and switch the boiler on for a proportion of that 0 minutes to maintain the set temperature. This stops the wide fluctuations in temperature that can occur with conventional thermostats. The TPI software then 'fine tunes' the calculations to constantly review performance and carry out further, fine, adjustments if necessary. When used with a condensing boiler, the TPI thermostat will help to save energy as the control algorithm allows the boiler to operate in condensing mode more consistently compared to older types of thermostat. This effect is achieved by keeping the return water temperature below the critical ºC needed for the boiler to operate in condensing mode for longer. Thermostat comparison set at C C BOIR O TIMS C C C 0 xample : TPI set to cycles per hour giving 0% load every 0 minute cycle Temperature 0 0 C HRT-B running TPI 0 C 9 C 8 C BOIR O TIMS 7 C C C xample : TPI set for cycles per hour giving approximately % load very 0 minute cycle 7 Time ( hour intervals) Actual test results of common mechanical room thermostats and the Horstmann HRT-ZW room thermostat

52 Optimum start C-Stat programmable room thermostat The Horstmann C-Stat is an electronic programmable room thermostat that combines time and temperature control in a stylish design that features simple, menu driven programming and a clear, back lit user interface.among its many new features the C-Stat features an (optional) optimum start function. C-Stat also uses the latest TPI energy saving software for accurate temperature control. TPI is highly accurate and sensitive and can produce savings of as much as 0% annually* on central heating fuel costs. Models in the range feature hour and 7 day programming with up to six temperature settings per day. The intuitive interface ensures they are easy to set up and use. The Optimum Start feature: This (optional) setting will allow the C-Stat to anticipate the next set temperature and switch on the central heating up to hours in advance to ensure the set room temperature has been reached by the time it is due to take effect. Optimum Start As a consequence the 'switch on' time could take place anywhere between hours and zero minutes before the set time. It is assumed that the heating can increase at a rate of C per hour. Therefore, the maximum extent of this setting is that it can switch on up to hours before the set temperature and raise the temperature by C (with an assumed warm up rate of C per hour). Room Temperature The hour optimisation period and the C per hour assumed temperature rise are non adjustable Hours before next temperature setting of 0 C The optimisation process will be cancelled if any overrides are used during the hour period of operation. Benefits For units without an optimum start or delayed start feature, normal practice is to set the heating to come on approximately hour before it is expected to be up to the set room temperature. For example, if a householder gets up at.0am, the heating will typically be set to come on at.0am to allow the house to be warm by.0am. The benefit of the optimum start feature is that the heating switch on time is calculated based on the temperature sensed hours before the set time. The actual switch on time is then delayed as long as possible whilst still achieving the correct required temperature at the set time. In mild weather conditions, the start time will be delayed until the last possible moment achieving considerable (energy) savings over a fixed hour warm up time. By contrast, in exceptionally cold weather conditions, the heating may be brought on up to hours before the time required but this will not be normal (in the UK) and savings should outweigh the extra heating needed in exceptionally cold conditions. The added benefit of optimum start is that comfort conditions will be improved as the heating will be better controlled and less likely to overheat the house on mild mornings. 8

53 Heating Programmer Replacement and Wiring Guide If you re replacing a central heating programmer you could just fit what was there before, or go one better and fit Horstmann. This handy guide shows you which of our programmers, from a straightforward electro mechanical unit to a channel 7 day electronic programmer, is the perfect match. Often you can simply plug in without even having to rewire. Whichever one you select, you can be sure that it s well designed, beautifully engineered and bang up to date with the latest spec. You won t be replacing it in a hurry. hour 7 Day CentaurPlus C CentaurPlus C7 ChannelPlus HX ChannelPlus H7X CentaurPlus C CentaurPlus C7 ChannelPlus HX ChannelPlus H7X Using the Guide First locate the existing programmer or timeswitch in the left hand column of the Programmer Compatibility Guide. Then simply follow the colour coded line over to the far right to find the recommended Horstmann replacement. The colour of the line indicates if it is a direct plug-in replacement or not. Where a hour programmer or timeswitch is recommended, its 7 day equivalent can be used and fitted in the same way. Wiring Comparison Table Before removing any existing programmer it is essential to make a note of wire colours, terminal positions and numbers in relation to the existing backplate. The charts only include programmers or timeswitches where wiring changes are necessary when fitting our recommended replacement. Where a direct plug-in replacement is available or where terminal connections do not change, the appropriate replacement is shown on the Programmer Compatibility Guide. For clarity the Compatibility Guide recommends replacements which are hour programmers/timeswitches. All cases where a hour programmer is stated as the recommended replacement, it s 7 day equivalent can be used and fitted in the same way. Download our wiring guide here Apple QR code 9 Android QR code Installation and connection should only be carried out by a suitably qualified person and in accordance with the current edition of the IT wiring regulations. The information contained in this manual is intended for guidance only and is believed to be correct. Secure Controls (UK) imited can accept no liability for any errors or omissions and reserve the right to make changes at any time without notice.