User manual HONEYWELL TM50SOLAR

[. . . ] Use the appliance according to its intended use in good condition with due regard to safety and risk of danger. Note that the appliance is exclusively for use in the applications detailed in these installation instructions. Any other use will not be considered to comply with requirements and would invalidate the warranty. [. . . ] 0 bar 25 l/min 27 l/min 40 l/min pressure differential across valve approximately Control accuracy <±4K <±4K <±4K TM50SOLAR-1/2E = without connection fittings R 1/2" TM200SOLAR-3/4A =with threaded union connectors R 3/4" TM200SOLAR-3/4E =without connection fittings R 3/4" TM300SOLAR-3/4A =with threaded union connectors R 3/4" Fit a return flow-retarder unit where the hot water supply system includes a circulation circuit · Observe the flow direction arrow when fitting a KB191 return flow-retarder unit · To prevent the growth of legionella, DVGW-W551 specify that the water volume in the pipework between the mixer valve and the furthest take-off point should not exceed 3 litres. The flow direction arrows must be observed when connecting the hot and cold water inlets. The mixing valve can be set within the range 30°C to 60°C as follows: · Rotate setting wheel until the desired temperature number coincides with the marking Once the correct setting has been achieved it can be locked in position. Secure the cap in place with the screw provided 3. The valve is now ready for use o The actual set point temperature can be viewed through the clear window (2) on the locking cap Check that the designation of the valve matches the intended application, that the supply pressures are within the range of operating pressures and that the supply temperatures are within the range permitted for the valve from guidance information on the prevention of legionella. Adjust the temperature of the mixed water o record the temperature of the hot and cold supplies o record the temperature of the mixed water at the smallest and largest draw-off flow rates o turn off the cold water supply and record the mixed water temperature and the maximum temperature achieved The values should not be greater than 2°C of the nominal set point. Most domestic water supplies contain calcium which will separate out when the water is heated in a system. The degree and speed of scaling depends, amongst other factors, on water flow rates, system design, the degree of hardness of the water and the temperature to which it is heated. Over a period, scale may form within the valve, particularly at the hot inlet where the water is hottest and this may eventually prevent one or more ports from closing fully and thereby impair the temperature control. descaling of the mixing valve then becomes necessary. Because circumstances differ between installations, it is not possible to give a definitive water hardness level which will affect the mixing valve within a certain time period. Simple scale protection of the incoming water supply on any system will always provide benefits in extending the efficient operating life of thermostatic mixing valves and other fittings before service is required. scale protection is essential in applications where water is particularly hard. If purpose made measuring equipment is not readily available, a good guide to hardness can be established by checking site experience with speed of scale build up in kettles or coffee machines. [. . . ] Should the temperature be 2°C greater than the nominal setting the following should be checked before dismantling the valve o Check strainers are clean o Ensure check valves are in good working order o Check isolating valves are fully open 2. If these checks are satisfactory then the Honeywell service kit is available for cartridge replacement (separate instructions in the service kit detail this procedure). Protective cap made of transparent plastic (not in TM50SOLAR) Observe the local requirements regarding correct waste recycling/disposal! [. . . ]