Secure Meters
Instruction Manual for SECURE models including: C-Stat 11-B, C-Stat 17-B, Battery Powered Programmable Room Thermostat
6 N L ON OFF ON OFF HOT WATER CENTRAL HEATING PUMP & BOILER Programmer MAINS C-Stat SUPPLY N L E N CALL SAT CALL CYL STAT C W BL 0 GR L SAT 1 4 3 C-Stat replacing a conventional room thermostat on a fully pumped system with an
C-Stat 17B - Secure
File Info : application/pdf, 12 Pages, 2.35MB
DocumentDocumentC-Stat 11-B | C-Stat 17-B Installation Instructions Battery Powered Programmable Room Thermostat Programmable room thermostats are widely recognised as one of the best ways in which to control central heating. C-Stat programmable room thermostats have a large display and intuitive user interface, making them easy to set up and use. CStat uses a sophisticated load compensation (LC) algorithm for accurate temperature control and energy efficiency. Being battery powered, these models are suitable for replacing most existing room thermostats. Installation and connection should only be carried out by a suitable qualified person and in accordance with the edition of the IEE wiring regulation. Warning: Isolate mains supply before commencing installation. Positioning the C-Stat programmable room thermostat The C-Stat should be mounted on an internal wall approximately 1.5 metres from floor level and should be in a position away from draughts, direct heat and sunlight. Ensure that there will be enough space to allow access to the two retaining screws located at the base of the wall plate 1.5m 2 Fitting the wall plate To remove the wall plate from the C-Stat undo the two retaining screws located on the underside, the wall plate should now be easily removed. Once the wall plate has been removed from the packaging please ensure the C-Stat is resealed to prevent damage from dust, debris etc. The wall plate should be fitted in a position which allows a total clearance of at least 50mm around the C-Stat programmable thermostat. TOP TOP 1234 L N 12 3 4 L N Direct Wall Mounting Offer the plate to the wall in the position the C-Stat is to be mounted and mark the fixing positions through the slots in the wall plate. Drill and plug the wall, then secure the plate in position. The slots in the wall plate with compensate for any misalignment of the fixings. 3 Wiring Box Mounting The C-Stat wall plate may be fitted directly on to a single gang steel flush wiring box complying with BS4662, using two M3.5 screws. The C-stat is suitable for mounting on a flat surface only; it must not be positioned on an unearthed metal surface. Electrical Connections All necessary electrical connections should now be made. Flush wiring can enter from the rear through the aperture in the wall plate. The recommended cable size is 1.0mm². Internal wiring diagram C-STAT COMMON 1 2 3 4 CALL FOR HEAT The C-Stat is double insulated and does not require an earth connection, an earth connection block is provided on the wall plate for terminating any cable earth conductors. Earth continuity must be maintained and all bare earth conductors must be sleeved. Ensure that no conductors are left protruding outside the central space enclosed by the wall plate. Y The C-Stat has voltage free contacts Y The C-Stat is battery powered, therefore no mains connection is required to power it. Please ensure that all wiring complies with current IEE regulations 4 C-Stat 1234 L Mains Supply N E EN L COMBINATION BOILER TERMINALS Remove link if Fitted C-Stat controlling typical combination boiler installation. For precise termination connection information please refer to the boiler manufactures instructions Programmer N L HOT WATER ON OFF CENTRAL HEATING ON OFF N MAINS SUPPLY L E C-Stat C N CYL STAT CALL SAT CALL C ROOM STAT N MAINS SUPPLY L SAT E 1234 N PUMP & L BOILER C-Stat controlling a secondary heating zone on a fully pumped system with existing programmer and two spring return valves with auxiliary switches 5 Programmer NL HOT WATER ON OFF CENTRAL HEATING ON OFF N MAINS SUPPLY L E W BL C CYL STAT CALL 4 SAT CALL C-Stat 1 3 SAT 0 NL PUMP GR & BOILER C-Stat replacing a conventional room thermostat on a fully pumped system with an existing programmer and 3 port mid-position valve. Programmer NL HOT WATER ON OFF CENTRAL HEATING ON OFF N MAINS SUPPLY L E C CYL STAT CALL 4 SAT CALL C-Stat 1 3 SAT NL PUMP & BOILER C-Stat replacing a conventional room thermostat on a fully pumped system with an existing programmer and two spring return valves with auxiliary switches 6 All wiring diagrams are schematic and should be used for guidance only. INSTALLATION AND CONNECTION OF THE C-STAT MUST BE CARRIED OUT BY A SUITABLY QUALIFIED PERSON. WARNING: ISOLATE MAINS SUPPLY BEFORE COMMENCING INSTALLATION LC Temperature control software Thermostats using LC control algorithms will reduce the temperature swing that normally occurs when using traditional bellows or thermally operated thermostats. As a consequence, an LC regulating thermostat will maintain the comfort level far more efficiently than any traditional thermostat. When used with a condensing boiler, the LC 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. Y For Gas boilers set the LC setting to 6 cycles per hour (default setting) Y For Oil boilers set the LC setting to 3 cycles per hour Y For Electric heating set the LC setting to 12 cycles per hour To adjust this setting go to the SET UP MENU and select LC CYCLES 7 Fitting the C-Stat to the wall plate Fit the 2 x AA batteries provided under 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. Complete the installation by swinging the C-Stat into position by engaging the lugs at the top of the wall plate before pushing it firmly home into its plug-in terminal block. Tighten the 2 captive screws on the underside of the unit. Now ensure that the heating system is responding to the On/Off commands from the C-Stat. Explain its operation to the householder and hand over the users operating instructions to the user. 8 Installer Settings There are a number of 'Installer Settings' that should be set on installation. These can be found under the 'SET UP MENU' on page 15 of the user instructions. Clock Format Daylight saving Standby temperature Upper and Lower Temperature limits LC Cycles Optimum Start AM/PM or 24 Hour clock display - Default setting AM/PM On or Off - Default setting ON for UK Market Frost protection setting Default setting 5°C Default settings 30°C and 5°C This setting will change according to the type of boiler being used - Default setting 6 For Gas boiler this setting should be 6 cycles per hour For Oil boilers this setting should be 3 cycles per hour For Electric panel heaters this should be 12 cycles per hour On or Off Default setting Off The LC Cycles setting and Optimum Start settings should be carefully set on installation as this will affect system performance. 9 Resetting the thermostat Electronic equipment can in some circumstances be affected by electrical interference. If the display becomes frozen or scrambled simply press both the BACK and ENTER button simultaneously. BACK ENTER 10 Specification C-Stat 11-B | C-Stat 17-B Power Supply Contact type Wiring configuration Contact voltage rating Contact current rating Temperature differential Temperature accuracy Standards Dimensions (WxHxD) Weight Enclosure Ingress protection Pollution degree Insulation class Software class Control type Temperature range 2 x AA Batteries Micro-disconnection Voltage free c/o contacts (SPDT) 230V ac 50Hz (30V dc) 8A (1A inductive) 0.5°C +/- 0.5°C to 21°C BS EN / EN (60730-2-9) 120mm x 100mm x 26.5mm 0.3kg (approx) Flame retardant thermoplastic IP30 Degree 2 Class II (Double Insulated) Class A Type 2B 0°C to 40°C 11 Secure Meters (UK) Ltd Secure House, Lulworth Close, Chandler's Ford, Eastleigh, SO53 3TL, UK t: +44 1962 840048 f: +44 1962 841046 www.securemeters.com NP0 0 8 4 8 7 2 0 0 0 Part Number P84872 Issue 7