Download Installation Instructions and User Guide
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FITTING • The valve must be installed with isolation valves on both the hot and cold water Before installation, the system operating systems as close as possible to the valve; so conditions of inlet pressures, hot water as to allow the valve to be commissioned The highest flow rates will be achieved under balanced pressure conditions, but the pressure at the valve inlets must be within a ratio of 5:1cold under flow conditions and the size and layout of and tested correctly. temperature and hot and water flow rates pipework and fittings must take this into account. should be determined and confirmed to be FITTING within the expected conditions of normal use • The valve is supplied with integral strainers Before installation, the system operating conditions of inlet pressures, hot water temperature and hot and coldin water flowtable rates should be determined and confirmed to be within the expected on the hot and cold water supplies therefore shown the below. conditions of normal use shown in the table below. inline strainers should not be required. Maximum static pressure (bar) Supply pressure hot and cold (bar) Hot supply °C Cold supply °C Mixed water temperature BS1287 10.0 0.1 – 1.0 55 - 65 Maximum 25 Maximum 46 BSEN1111 10.0 1.0 – 5.0 55 – 65 Maximum 25 Maximum 46 • The valve is fitted with integral “listed” non- return valve cartridges which command the water supply, therefore the thermostatic Valves mustmust operate operate in either a highin pressure settingaorhigh a low pressure setting. These valvesarevalve is protected against cross-flow due to Valves either pressure not capable of operation with, for instance hot water supply in one pressure range and cold water supplyor in the range. Insetting. these conditions it is necessary to either boost one setting a other lowpressure pressure These valves unbalanced line pressures as required by pressure or reduce the other so that both supplies are within a common pressure range. If your watercapable supply cannotof meetoperation these conditions with, then the valve cannot be guaranteed to the Water Supply (Water Fittings) are not for instance operate as a Type 2 valve. hot water supply in one pressure range and Regulations 1999. Operating pressures above 5.0 Bar will require the installation of a pressure reducing valve. Correct water location of supply the mixing valve is important to ensure that it is accessible cold in the other pressure range.for commissioning and servicing. In these conditions it is necessary to either Assembly Procedure • The valve body is clearly marked ‘C’ for Cold andother a blue boost one pressure orwith reduce the so that indicator and ‘H’ for Hot and a red indicator. both supplies are within a the common pressure • Unpack the main valve assembly, remove the The valve must be correctly connected to respective supplies range. If your water supply cannot meet three plastic protection caps and check that these conditions then the valve cannot be into the water the bores are free of debris and the end • The use of sealing compounds must be avoided since they may intrude supply and impair the valve performance. guaranteed to operate as a Type 2 valve. sealing faces are clean. • The valve must be so installed that it is readily accessible for commissioning and maintenance when being installed in accordance with TMV2. Operating pressures above 5.0 Bar will require • Unpack the two tailpieces and confirm • The valve must be installed with isolation valves on both the hot and cold water systems as as possible to the of valve; as to allow thereducing valve to be commissioned theclose installation a sopressure valve. and tested they are complete with union nuts and correctly. Correct location of the mixing valve is compression nuts and olives. • The valve is supplied with integral strainers on the hot and cold water supplies therefore inline strainers should not be required. important to ensure that it is accessible for • The valve is fitted withand integralservicing. “listed” non-return valve cartridges which command the water commissioning • Locate the sealing gaskets, insert them into supply, therefore the thermostatic valve is protected against cross-flow due to unbalanced line pressures as required by the Water Supply (Water Fittings) Regulations 1999. the union nuts against the faces of the • The valve body is tailpieces and screw the union nuts onto the clearly marked with valve until a tight seal has been made. Procedure Assembly ‘C’ for Cold and a blue indicator and ‘H’ • Remove the compression nuts and olives for Hot and a red from the tailpieces. Locate the inlet filter indicator. screens and insert them into the bore of the The valve must be correctly connected to the respective supplies • The use of sealing compounds must be avoided since they may intrude into the water supply and impair the valve performance. • The valve must be so installed that it is readily accessible for commissioning and maintenance when being installed in accordance with TMV2. tailpieces up to the shoulder. • Assemble the valve to the pipework and ensure the hot and cold water pipes have full penetration into the tailpiece. • Tighten the compression nuts ensuring that the end of the pipe remains in contact with the filter element.