Salus CT100 Instruction Manual

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PRODUCT COMPLIANCEThis product complies with the essential requirementsof the following EC Directives:• Electro-Magnetic CompatibilityDirective 2004/108/EC• Low Voltage Directive 2006/95/EEC• EC Marking Directive 93/68/EECSAFETY INFORMATIONThese instructions are applicable to the Salus Controlsmodel stated on the front cover of this manual only,and must not be used with any other make or model.These instructions are intended to apply in the UnitedKingdom only, and should be followed along with anyother statutory obligations.This accessory must be fitted by a Competent person,and installation must comply with the guidanceprovided in the current editions of BS7671 (IEE WiringRegulations) and Part ‘P’ of the Building Regulations.Failure to comply with the requirements of thesepublications could lead to prosecution.Always isolate the AC Mains supply before carryingout any work on the CT100 thermostat.Please leave these instructions with the end user wherethey should be kept in a safe place for future reference.INTRODUCTIONThe CT100 from Salus Controls is a practical surfacemounted mechanical thermostat. The thermostat canbe used to switch a circulating pump, boiler or mostcommon motorised zone valves.The CT100 will allow the user to control thetemperature of Domestic Hot Water Cylinders (bothuninsulated and foam lagged), and is also suppliedwith a wire strap which enables the unit to be used asa pipe thermostat.FEATURES• Surface mounted• Suitable for use on uninsulatedand foam lagged cylinders• Easy temperature adjustment• Dual use (cylinder or pipe thermostat)INSTALLATIONPlease read the important safety information at thestart of this manual before you begin to install thedevice.NOTE: All electrical installation work should becarried out by a suitably qualified Electrician orother competent person.If you are not sure how to install this thermostat consulteither with a qualified electrician, heating engineer oryour boiler / heating system supplier for advice on howto continue.The CT100 thermostat should not be mounted in alocation where it will come into direct contact withwater, moisture or condensation. The location shouldalso be accessible for the connection of the controlwiring.There are few electrical connections required to theCT100, and these connections should be made to thescrew terminals on the front of the thermostat, asindicated in the diagrams below:Terminal Description FunctionC Common Contact ---1 Normally Closed Contact made whenContact temperature drops2 Normally Open Contact made whenContact temperature risesEarth ---Fitting LocationWhen installed as a cylinder thermostat: Therecommended fitting location is approximately aquarter of the way up from the bottom of the cylinder– if the thermostat is to be mounted on a foam laggedcylinder, a sufficient amount of insulation (to the depthof the cylinder surface) must be removed to allow theCT100 to be in contact with the cylinder.When installed as a pipe thermostat: The CT100thermostat should be located as near to thetemperature source to be controlled as possible,typically not more than 0.6 metres from the boiler.OPERATIONThe CT100 thermostat switches on and off the heatsupply from the boiler to the hot water cylinder. Itworks by sensing the temperature of the water insidethe cylinder, switching on the water heating when thetemperature falls below the thermostat setting, andswitching it off once this set temperature has beenreached.The CT100 thermostat has an easily adjustable, clearlymarked scale, and the temperature should normally beset at between 60 ºC and 65 ºC. This temperaturesetting is high enough to kill off any harmful bacteria inthe water - raising the temperature of the stored hotwater any higher will result in wasted energy andincreases the risk of scalding.If your boiler has a control thermostat it should alwaysbe set to a higher temperature than the cylinderthermostat. In most boilers, a single boiler thermostatcontrols the temperature of water sent to both thecylinder and radiators, although in some there are twoseparate boiler thermostats.Turning a cylinder thermostat to a higher setting willnot make the water heat up any faster. How quickly thewater will heat up depends on the design of theheating system.CT100 INSTRUCTION MANUAL2 CT100 INSTRUCTION MANUAL3 CT100 INSTRUCTION MANUAL4 CT100 INSTRUCTION MANUAL5 CT100 INSTRUCTION MANUAL6CT100 Manual_Layout 1 24/04/2013 10:31 Page 6

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