Thermostatic Mixing Valves

Transcription

1 HERMOSAIC MIXING VALVES (Safety for the Hot Water System) hermostatic Mixing Valves About Legionella 94 What is Legionella? What are the risks? Recommendations 95 General Features 96 echnical Advantages 97 Installation Advice 98 PREMIX Selection Guide 99 Coefficient of simultaneous use, probable flow rate and PREMIX sizing PREMIX Range 00/0 Quick Choice Guide hermostatic Mixing Valves & Regulators Stopcocks & Maintenance 02 Stopcocks hermostatic Cartridges Maintenance Kits Maintenance & Commissioning 03 Preventative Maintenance Calibration & Maximum emperature Limitation Controls with Duty Flush he PREMIX range benefits from a European Community grant.

2 About Legionella Recommendations Unknown contamination source Hospitals Hotels, Overseas camp sites trips emperature up to 20 C 25 to 46 C 50 C 60 C Chlorine 70 C Care-Homes Water-cure establishments Legionella Development Dormant Lethargy Multiplication 90% die in 2 h 90% die in 2 min Legionella development / temperature Source : CSC Belgium /02 65 C Circulating loop We recommend a circulating loop that maintains the hot water temperature above 55 C. M MW What is Legionella? It is a respiratory infection which is fatal in 5-20% of cases, caused by the Legionella bacteria. he people most at risk are elderly smokers, people with respiratory problems or those with weakened immune systems. Legionella bacteria develop in the warm water found in pipework and central heating systems, but only become dangerous when they are inhaled in aerosol format, as particles suspended in water droplets (i.e. aerosol). hey spread into the lungs, and are absorbed by the immune system, and rapidly proliferate in white blood cells. Legionella is treated by antibiotics (Macrolide). he World Health Organisation (WHO) cite the risk levels as,000 CFU* Legionella per litre of water (50 for hospitals). * Colony Forming Units Which installations are at risk? he installations most at risk are those which provide the ideal environment for Legionella to develop i.e. stagnant water between C, with a peak temperature between C, and deposits such as scale, rust, mud, etc.). he alert level to undertake treatment is,000 CFU of Legionella pneumophilia / litre of water. For high risk patients (with suppressed immune systems) in the hospital environment, the concentration level of Legionella will be maintained beneath the alert level for water withdrawn, in securing the points-of-use (independent and instant production of hot water, 2 micron terminal microfilters, etc.). Current Curative reatments are Ineffective. - chemical shock: an chlorine injection 0 mg/litre for 8 hours. - thermal shock: circulating hot water at 70 C for 30 minutes.. hese treatments only have a short term effect: he system can be very quickly recolonised within 3-4 weeks. In corroded storage tanks and installation dead-legs, Legionella bacteria can develop in the scale and biofilm, finding a refuge which helps them to resist temperature changes and bactericidal disinfectant solutions. Following a curative treatment, there is a risk that the biofilm will spread in the system, allowing Legionella bacteria to colonise new areas after the treatment. 2. hey can have a detrimental effect on the distribution and drainage system which are subject to extreme conditions. It is essential to ensure that the system will withstand thermal expansion of the materials (pipework, etc.), and the temperature and the type and dose of the disinfectants. (For example: damage caused by a PE sleeve joint becoming detached between the between the floor trap and a shower tray manifold, following a disinfection at 70 C.) 3. here are significant risks to users when the treatments are taking place: - the risk of 3rd degree burns during thermal shocks. - the risk of poisoning during the chemical shock treatment. 4. hese operations are costly and difficult to undertake fully at all points in the system (various deposits, dead-legs, heat loss, etc.) requiring the water supply to be out-of-service. Preventative treatment is an effective means of fighting against the risk associated with Legionella. Legionella bacteria are destroyed above 60 C and can not multiply above 47 C. he solution is to generate and store hot water at temperatures above 65 C and to distribute hot water in the circulating loop at 55 C. Hot and Cold water should be mixed as close as possible to the discharge points, using one or more thermostatic mixing valves per distribution branch (PREMIX). We recommend that all buildings open to the general public should monitor for Legionella. Recent regulations agree that the only way to limit the development of Legionella bacteria is to produce and deliver hot water at higher temperatures. he risk of scalding in healthcare facilities is therefore significantly increased: - at 50 C: 3rd degree burns within 00 seconds. Healthy adult skin will suffer burns in 30 seconds. - at 60 C: 3rd degree burns within 5 seconds on average (5 seconds for an adult, -2 seconds for children). o comply with these regulations, we therefore recommend installing a thermostatic mixing valve: - PREMIX Security at the boiler outlet to lower the temperature of the hot water distributed (i.e. from 65 to 55 C). - PREMIX Comfort upstream and as close as possible to the point-of-use to avoid any risk of scalding (i.e. 45 C maximum). Guidance for Monitoring Legionella Bacteria which requires the bacteriological quality of water to be monitored in all work places by a UKAS accredited laboratory (Source: L8 Legionnaires Disease: he control of legionella bacteria in water systems, Health & Safety Executive, 2004): Monitoring should take place: Monthly in water systems that are treated with biocides and where hot water storage and distribution temperatures are lower than those recommended to control Legionella (Hot water should be stored at 60 C and distributed at 50 C). Weekly in systems where a consistent anti-bacterial treatment regime has not been achieved. he system and treatments must be reviewed to ensure a consistent regime is achieved. Analysis for Legionella should also be undertaken in hospital wards with at risk patients e.g. hospital wards with immunocompromised patients. Samples should be taken as follows: - Cold water system - from the cold water storage tank and the furthest outlet from the tank. - Hot water system - from the calorifier outlet; the return supply to the calorifier; the base of the calorifier where the drain valves are fitted; and the furthest outlet from the calorifier. Samples may also be required in sensitive areas e.g. hospital wards with at risk patients. Areas considered at risk of contamination by Legionella bacteria include outlets that can produce hot water in aerosol format, particularly showers and hand sprays. Hot Water emperature Control At the hot water production outlet the hot water temperature should be always above 55 C. In the hot water storage facility the water must be raised to a high temperature to at least once every 24 hours: either for 2 minutes at 70 C; 4 minutes at 65 C, or 60 minutes at 60 C. At all points in the distribution system the hot water temperature must be equal to or over 50 C with the exception of the final supply pipes to the point-of-use. he final supply pipes from group thermostatic mixing valves to the point-of-use must contain less than 3 Litres of water. he maximum hot water temperature at the point-of-use is 50 C in any room used for washing or as a bathroom, 60 C in other rooms and 90 C in kitchens with appropriate notices. Note: Methods for monitoring and analysing the levels of Legionella in hot water storage and distribution systems will vary by country. You must comply with current local regulations and water byelaws set by the appropriate regulatory bodies in your own country

3 General Features echnical Advantages 65 C Circulating loop M MW Designed for commercial applications, the PREMIX group thermostatic mixing valve delivers a highly stable blend of mixed water supply at the desired temperature. It enables simultaneous supply to a large number of sanitary points-of-use (showers, washbasins, etc.) Fast to react, it regulates the hot water in the system, maintaining a constant temperature regardless of variations in pressure, flow rate and temperature in the system. he mixing valves benefit from the PREMIX technology (automotive thermo-reactive cell technology) providing precise temperature control with a highly effective performance in comparison with current technologies i.e. bi-metal, double pilots, etc. COMFOR he PREMIX thermostatic mixing valve ensures a constant temperature regardless of variations in pressure or flow rate in the system. he response is immediate for all models. PREMIX anticipates and corrects fluctuations in pressure and temperature to ensure user's comfort and safety. ANI-SCALDING SECURIY Automatic safety feature ensures that the hot water supply is shut-off if the cold supply is interrupted. emperature limitation: a locking ring limits the maximum temperature at the outlet (safety device). he temperature control is pre-set at the factory at 40 C and the installer can change the setting by adjusting the limiting ring. PREMIX provides security against scalding. ANI-LEGIONELLA PREVENAIVE & PERMANEN SOLUION o avoid any risk of Legionella developing the preventative solution is to ensure that hot water is maintained above 55 C at all times and at all points in the distribution system. Install a thermostatic mixing valve as close as possible to the point-of-use. Maintain the hot water temperature above 50 C. PREMIX prevents the risk of bacteria proliferation. We recommend a circulating loop that maintains the hot water temperature above 55 C. Operation he thermostatic element submerged in the heart of the mixing chamber reacts rapidly to every temperature variation. Constantly in motion, it expands or contracts with changes in flow rate or pressure to control a sliding valve that opens and closes the hot and cold water inlet ports or vice versa. he piston travel is limited to mm, operating in high levels of precision. As the mixed water temperature rises, the thermostatic element expands and pushes the sliding valve down. his immediately restricts the passage of hot water and opens the cold inlet. As the mixed water temperature falls, the thermostatic element contracts and the sliding valve is pushed upwards by the balancing spring. It immediately restricts the passage of cold water and opens the inlet of hot water. In case of a failure in cold water supply, the thermostatic element expands instantly and the sliding valve closes the hot inlet. he outflow is stopped instantaneously preventing the user from scalds and thermal shock. he PREMIX mechanism uses technological advances developed in the aerospace and car industries to create a simpler, more accurate and more reliable valve than those using older technology. Minimising the number of moving parts in the mechanism reduces the requirement for maintenance. he PREMIX valve offers a real competitive advantage. Long Life and Reliability he automotive thermostatic cell of the PREMIX is located in the heart of the mixing chamber. his position enables superior sensitivity to hot and cold flows and water pressures. It optimises the regulation of both hot and cold water supplies. he PREMIX range is covered by a 0 year warranty against any manufacturing defects. Precise emperature Control PREMIX valves are factory set to a nominal temperature of 40 C ±. hey are precise to one degree in the recommended range of flow. he control knob enables simple temperature. he control knob can be limited at the desired temperature in a tamperproof position. Minimal Pressure Loss he PREMIX mechanism (without hydraulic relays) enables direct circulation of water between inlets and outlet. his reduces the pressure loss and maintains flow rate to the outlet to ensure excellent performance at low, medium and high pressures. Minimum Maintenance he internal working is designed to be simple with a minimum number of moving parts. he scale-proof mechanism is corrosion resistant. Recommended maintenance: Carry out regular mixed water temperature checks test and antiscald failsafe. Easy and Low Cost Maintenance Simple cartridge mechanism is easy to change, accessible from the front without having to remove the whole mixing valve. Filters and non return valves are accessible from the exterior without having to remove the mechanism. Comprehensive Range at Competitive Prices PREMIX products are available in four sizes (from 3/4"BSP(M) to "/2 BSP(M)) with a range of maximum rates between lpm. Optional isolating ball valves with test points and strainers are available. he PREMIX Solution PREMIX Security: for hot water circulating loops. Install at the hot water production outlet (55-90 lpm adjustable from C) : > 5% energy savings: minimises heat loss (much less heat loss in a circulating loop at 55 C than in a system that does not circulate at 70 C). > Helps to prolong the life of the system (maintaining hot water in a non-circulating loop > 65 C leads to the premature aging of the installation (wears out and scale builds up more quickly). > Reduces the risk of scalding by reducing the temperature at the point-of-use. > Regulates the wide variations in temperature that result from the hot water production equipment. PREMIX Comfort: to supply 6-40 points-of-use. Install upstream of the installation (55-90 lpm, adjustable from C) : > Prevents the risk of scalding by lowering the hot water temperature at the point-of-use. > Ensures a constant temperature at the point-of-use (regulates fluctuations). PREMIX Compact: to supply 2-0 points-of-use*. PREMIX Security PREMIX Comfort Install upstream of the valve (9-23 lpm. adjustable from C) : > Prevents the risk of scalding by lowering the hot water temperature at the point-of-use. > Ensures a constant temperature at the point-of-use (regulates fluctuations). PREMIX Compact * Depending on the flow rate at the point-of-use (NB: EMPOMAIC, etc. = 3 lpm). See also the SECURIHERM range of thermostatic mixing valves. W A R R A N Y 0 YEARS W A R R A N Y 96 97

4 Installation Advice PREMIX Selection Guide Situation : Circulating Loop with PREMIX Security WIH maximum temperature limitation at the point-of-use. HW 70 C raise the temperature every 24H 70 C 50 C Premix Security 20% 80% Mixer with maximum temperature limiter or individual thermostatic mixing valve. WC : all equipment causing variations in pressure should be supplied upstream of the circulation loop. PREMIX Security enables the hot water circulating loop to be maintained at a constant temperature, which reduces heat loss (5% energy savings) and prolongs the life of the system. his avoids the risk of large fluctuations in the hot water temperature (from C), heat loss and premature aging. > Points-of-use supplied at 50 C or more equate to an increased risk of scalding. > Some regulations restrict the maximum temperature at the hot water outlet to < 50 C. Safety: All DELABIE mixers (thermostatic, electronic or time flow) which are used at the point-of-use are fitted with a maximum temperature limiter, which can be adjusted by the installer. Situation 2: Circulating Loop with PREMIX Security and mixed water supplied by PREMIX Comfort 5 C Safety at the points-of-use: anti-scalding safety or maximum temperature limiter Mixer with maximum temperature limiter or indvidual thermostatic mixing valve. he choice of PREMIX thermostatic mixing valve depends upon the installation type, the frequency of use (coefficient), the number of points-of-use, and the dynamic water pressure upstream of the PREMIX. o select the appropriate PREMIX for an installation, it is necessary to calculate the probable need of mixed water.. Determining the COEFFICIEN OF SIMULANEOUS USE It depends on type of site and number of points of use. Number of taps and valves to be connected to 5 5 to 0 0 to 5 5 to to to 60 more than 60 COEFFICIEN OF SIMULANEOUS USE Sport centres, boarding schools, camp sites, etc Hospitals, hotels, offices, apartment buildings, community homes Normal or low frequency of simultaneous use: We recommend use of the following formula to determine the simultaneity coefficient (x represents the number of points-ofuse): High frequency of simultaneous use: Apply formula: Very high frequency of simultaneous use: Use coefficient for to 5 outlets. > 55 C HW 70 C raise the temperature every 24H 50 C PC 42 C Premix Confort 37 C Mixers supplied with mixed water and cold water! 5 C NB : 3 litres maximum after PREMIX Comfort. - PREMIX Comfort for MW supply at < 55 C. - Points-of-use without maximum temperature limitation. NB: the volume of water between the PREMIX Comfort and the point-of-use should not exceed 3 L. Material / Dimension Copper 8 x Galvanised steel DN 5 PEX plastic 8 x 2.5 Length for 3 L capacity 5 m 5 m 23 m 2. Calculating the PROBABLE FLOW RAE for feeding each type of outlet he expected flow rate depends on operating flow rate for each type of outlet (refer to manufacturers data sheets for tap & valve flow rates) ype of Installation Flow rate Number of fittings otal gross flow rate Washbasin... litres/min x... Shower... litres/min x... Basin, sink, shower, bidet... litres/min x... Bath... litres/min x... OAL GROSS FLOW RAE OAL GROSS FLOW RAE x simultaneity coefficient = total PROBABLE FLOW RAE of mixed water WC : all equipment causing variations in pressure should be supplied upstream of the circulation loop SPORING Shower panels supplied with mixed water PP plastic 20 x.9 Relation Capacity / Pipe lengths (Capacity = Interior section x Length) 4 m x = If the supply temperature is < 42 C, the maximum temperature limiter on the mixer at the point-of-use will be deactivated. Situation 3: No Circulating Loop, PREMIX Comfort or PREMIX Compact and system duty flush. HW >65 C raise the temperature every 24H > 55 C 5 C Premix Comfort 40 C Shower panels WC : all equipment causing variations in pressure should be supplied upstream of the circulation loop Premix Compact 40 C Basin mixers PREMIX thermostatic, electronic shower panel Electronic controls with automatic duty flush Electronic washbasin mixer 5 C 40 C LEGEND: hese diagrams are for guidelines only. Always check your drawings with a fluid or mechanical engineer. On installations where there is no circulating loop, stagnating water at temperatures below 50 C can cause Legionella bacteria to develop. Solution : - PREMIX Comfort or PREMIX Compact to lower the temperature of the water at the points-of-use to a maximum of 50 C. - DELABIE electronic mixers, taps or valves with automatic duty flush can be installed at the extreme end of each distribution arm (as a minimum). his will avoid any bacterial development due to the automatic duty flush for ~ 45 seconds every 24 hours after the last use. hot water cold water mixed water temperature probe circulating pump non-return valve stopcock regulating valve filter 3. Sizing the appropriate PREMIX taking into account the PROBABLE FLOW RAE and pressure loss: PREMIX. Select the PREMIX size (3/4", ", etc.) according to the total probable flow rate of the installation. 2. Check the PREMIX pressure losses Having established the dynamic pressures at the group thermostatic mixing valve inlets, and the required residual pressure for supplying the installation, use the adjacent chart to select the correct size of PREMIX based on the associated pressure drop. Example: for a 50 lpm probable flow rate, the PREMIX 3/4" records a 2.4 bar pressure loss as opposed to 0.9 bar for the PREMIX ". Note: For supply pressures at 3 bar (recommended), the pressure drop should not exceed bar. Chart of pressure losses: Dynamic pressure drop when operated under varying flow rates. Reminder: Also check pipe work pressure losses (e.g. different floor levels, extended supply pipes, etc.). he above information is for guidance only. Specifiers and contractors must select thermostatic valves appropriate for the application and pipe sizes. his information is not contractual and can not supersede the designer's specifications. Designers remain responsible for determining the best simultaneity coefficient and the PREMIX sizes

5 PREMIX PREMIX H L P PREMIX type 55, 90, 40 and 90 H L P PREMIX type 2, 3, 4 and 5 PREMIX SECURIY ECHNICAL CHARACERISICS Maximum hot water temperature: 85 C. Maximum temperature limiter can be adjusted by the installer on the PREMIX Comfort model. Min. differential between HW and MW: 5 C. Min. differential between HW and : 40 C. Maximum difference in pressure at the inlets: bar (recommended 0.5 bar). Min/max pressure: - 0 bar (recommended - 5 bar). MW outlet on the top, with inlet on the left and HW inlet on the right (red indicator for hot water and blue indicator for cold water). For MW outlet at the bottom: reverse the positions of the blanking plug and the MW outlet. Highly resistant chrome-plated DZR brass body. Anti-scalding safety: 42 C max. for PREMIX Comfort, 55 C max for PREMIX Security. Quick Choice Guide for PREMIX PREMIX 3/4 /4" /2" Flow rate at 3 bar Recommended flow rate range Number of taps/valves up to 6 up to 2 up to 25 up to 40 Simultaneity coefficient Number of taps/valves up to 3 up to 6 up to 50 up to 00 Simultaneity Coefficient High simultaneous use: Sports Stadia, Swimming Pools, Boarding Schools, Campsites, etc. (DELABIE washbasins: 3 lpm - DELABIE showers: 6 lpm - Average use: 5 lpm) Normal simultaneous use: Hospitals, Hotels, Offices, Community Housing, etc. (DELABIE washbasins: 3 lpm - DELABIE showers: 6 lpm - Sinks 2 lpm - Baths 20 lpm - Average use: 2 lpm). PREMIX Security Group thermostatic mixing valve for hot water circulating loops adjustable from 46 C to 60 C featuring an interchangeable cartridge with automotive cell. Non-return valves and filters are accessible from the exterior without removing the mechanism. hermal shocks can be undertaken without removing the mixer (override button on the control knob). > 5% energy savings: reduces heat losses (circulating loop 55 C / 70 C system without circulating loop). > Prolongs the life of the hot water system (HW at > 65 C leads to premature aging within the system. Description PREMIX SECURIY PREMIX SECURIY PREMIX SECURIY 40 /4" PREMIX SECURIY 90 /2" * Flow rate at 3 bar pressure loss ** Recommended flow rate range PREMIX Comfort Size Flow rate* Dimensions Recommended BSP M lpm L H P flow rate** Reference Group thermostatic mixing valve for mixed water supply adjustable from C, featuring an interchangeable cartridge with automotive cell and adjustable maximum temperature limiter. - Non-return valves and filters are accessible from the exterior without removing the mechanism. - hermal shocks can be undertaken without removing the mixer (override button on the control knob). > 2 sizes available to replace existing models on the market (standard swap). 200 x / /2 /2 / x 220 PREMIX Comfort Recessed hermostatic control for mixed water distribution, recessed beneath a chrome-plated wall plate 60x220mm, with a waterproof recessing box. Flow rate 35 lpm at 3 bar. Adjustable temperature between C, pre-set at 38 C. Constant temperature: ±.5 C between C. Anti-scalding safety up to 42 C. Integrated non-return valves. Waterproof Recessing Box: > Prevents water entering the box from the outside, e.g. water streaming down the tiles. > Water is drained by a small channel in the waterproof seal if there is condensation or a leak due to faulty installation. > Quick installation and adjustable recessing depth from 0-30mm, stopcocks are integrated in the connectors. > Vandal proof: hidden fixings and shockproof mechanism. echnical characteristics: Recessing depth adjustable from 0-30mm with integrated connectors and stopcocks. Pre-set at 38 C (3 bar pressure for cold and hot water). Range of on control knob: C. Hot water supply temperature: C. Cold water supply temperature: 5-20 C. Minimum differential between cold and mixed water: 5 C. Recommended pressure - 5 bar. Maximum pressure differential between hot and cold water inlets: bar. PREMIX Compact hermostatic control for mixed water distribution between C. - Adjustable temperature between C, can be locked by the installer. - Anti-scalding safety and accuracy to ±.5 C between 34 and 40 C. - Automatic hot water shut-off in case of cold water supply failure. - Minimum flow rate for operation: 5 lpm. - Integrated non-return valves. hermal shocks can be easily undertaken. M/2" for 2-7 valves* (KV 9 lpm for P bar) rough cast finish with blue control cap chrome-plated body and control cap M3/4" for 2-0 valves* (KV 23 lpm for P bar) rough cast finish with blue control cap chrome-plated body and control cap * depending on the valve flow rate (NB: empomatic,... at 3 lpm). PREMIX COMFOR RECESSED Description Size Flow rate* Dimensions Number BSP M lpm L H P taps/valves** Reference PREMIX COMFOR PREMIX COMFOR PREMIX COMFOR 40 /4" PREMIX COMFOR 90 /2" PREMIX COMFOR PREMIX COMFOR PREMIX COMFOR 4 /4" PREMIX COMFOR 5 /2" EF EC EM PREMIX Compact is specially designed for installing directly on to the hot water supply pipe. If a circulating loop is installed, it will maintain the hot water temperature up to the point-of-use, ensuring that anti-scalding regulations are met. hermal shock capability without a special lever (turn the hot water control cap to the maximum, overriding the temperature limiter). PREMIX COMFOR * Flow rate at 3 bar pressure loss ** Number of showerss for guidelines only (see simultaneity co-efficient). HESE PRODUCS WILL WIHSAND HERMAL AND CHEMICAL SHOCKS subject to compliance with current protocols Always install stopcocks on the hot and cold water inlets (see page 02). 00 PREMIX COMPAC HESE PRODUCS WILL WIHSAND HERMAL AND CHEMICAL SHOCKS subject to compliance with current protocols 0

6 Stopcocks & Maintenance Maintenance & Commissioning Right-angled Stopcocks Chrome-plated ball valves with integrated filter and test point (to connect pressure and temperature gauges). FF3/4" for PREMIX 3/4" P F3/4" F" for PREMIX " P F" F /4" for PREMIX /4" P Preventive Maintenance he simple design of PREMIX makes maintenance easy:. Simple cartridge is accessible from the front without removing the valve. 2. Non-return valves are accessible from the exterior. PREMIX type and RIGH-ANGLED SOPCOCKS P In order to maintain the reliability of PREMIX and PREMIX Compact, and to prevent the risk of Legionella, we recommend the following annual service inspections:. Non-return valves and filters: descale or replace worn parts. 2. Interchangeable cartridge: descale or replace worn parts. 3. emperature commissioning. PREMIX type /4" and /2" hermostatic Cartridges for PREMIX 3/4" for PREMIX model 730 (prior to 06/2008) Complete thermostatic cartridge for standard replacements. for 3/4" (ref and ) he following PREMIX Comfort repair options are available: - either by using a standard replacement kit, - or by using spare parts available in the Repair Kit section below. PREMIX 3/4 - /2" Repair Kit for PREMIX model 730 (prior to 06/2008) Spare parts for repairs to the thermostatic cartridge include: thermostatic cell(s), piston, washers and balancing spring. for 3/4" (ref et ) for " (ref et ) for /4" and /2" (ref & ) Balancing spring hermostatic cell Piston o ensure the level of precision and optimal performance of the PREMIX thermostatic mixing valves, they should be installed in accordance with local water bylaws and relevant legislation, and in accordance with the normal operating conditions. - Ensure that pipe diameters and length of supply pipes, the selected group mixing valve and circulating loop pump are appropriate for the installed outlets. - It is essential that non-return valves, regulating valves and isolating valves are installed in the correct positions. - he pipework must be thoroughly flushed, using a large flow rate, to ensure pipes are cleaned properly before commissioning. We strongly recommend installing filters at the water inlets, stopcocks and points for measuring pressure and/or temperature (see our control valves with filters and flush outlets, see opposite). Installation and commissioning of PREMIX should be undertaken by experienced, qualified professionals. Commissioning and Maximum emperature Limiter he PREMIX Comfort is tested at the factory and calibrated to approx. 38 (pressure HW = = 3 bar). Once installed and flushed, the mixing valve must be commissioned.. Set the flow rate at 25% of the maximum flow rate. Measure the mixed water temperature at one of the points-of-use. PREMIX Compact /2 and PREMIX 3/4 - /2" Repair Kit for PREMIX model 73 (after 06/2008) Spare parts for repairs to the thermostatic cartridge include: thermostatic cell(s), piston, washers and balancing spring. ref , 73200, 73003, ref , 73400, 73005, ref , ref , o adjust the water temperature unscrew the locking screw and remove the control knob. urn the valve spindle to the right to lower the temperature and to the left to increase it (30 of rotation corresponds to C of temperature). 3. Replace the control cap with the 38 C aligned with the marker on the body. he mixer can now be adjusted from 32 to 40 C. 4. PREMIX Comfort is delivered with the maximum temperature limiter set at 40 C (the index ring set at letter A). o set the temperature to 42, remove the red index ring and position it at the second letter E. o limit the temperature to 39 C, position the index ring to the letter D. Stop at about 40 emperature stop A in line with the indicator Locking screw PREMIX Compact Repair Kit Spare parts for repairs to the thermostatic cartridge include: thermostatic cell(s), piston, washers and balancing spring. ref , 73306, , hermal Shock without removing the cartridge, or any special equipment o activate a thermal shock: Using a small screw driver, press on the red button. urn the control knob towards the left through a 3/4-turn. o return to the original temperature, turn the control knob to the right. Red indice Push urn CARRIDGE / REPAIR KIS 02 03

7 4 Water Controls with Duty Flush Water Controls with Duty Flush PREVENING WAER SAGNAION In healthcare facilities to overcome the risk of Legionella we recommend: Avoid stagnation and ensure that water circulates. In systems without circulating loops (dead-legs, supply pipes for points-of-use that are used infrequently), stagnant water that is held at temperatures below 50 C can lead to the development and multiplication of the micro-organisms responsible for infections such as Legionella. o avoid water stagnation, we recommend installing water controls with an automatic duty flush at the end of each installation branch: they will automatically flush the final pipework (not in a circulating loop) to avoid any bacterial development. Anti-bacterial duty flush: Automatic duty flush every 24 hours after the last use. All our electronic water controls are programmed with an automatic duty flush to avoid water stagnation in the pipework. Anti-bacterial duty flush Automatic duty flush (~ 45 seconds every 24 hours after the last use): avoids water stagnation and the development of bacteria in the pipework. Voluntary mode (230/2V models): Voluntary closure by passing a hand in front of the sensor, or continuous flow for 30 minutes (specifically for surgical protocols, or to evacuate the pipes voluntarily). MULI-FUNCION 230/2V electronic control unit (Ref ) is pre-set in the Standard mode: - Standard mode with automatic shut-off when hands are removed from sensor field and safety shut-off after 45 seconds, in case the user forgets. - PROG n 4: Voluntary Mode with shut-off. Code Wheel Shut-off delay Detection Safety transformer 230/2Vca Control LED for checking good functioning Protective fuse Pins connectors Ref Adjustable detection length: ~ 8 to 25cm (basin) PREMIX Electronic Shower Panels battery-operated by 6V Lithium battery, for exposed surface mounting. Anodised aluminium shower panel with hidden fixing, featuring: - PREMIX single thermostatic mixing valve. - Infrared sensor detects user presence, powered by a 6V Lithium battery. - Vandal proof, ROUND chrome-plated shower head with scaleproof nozzle and automatic flow rate regulator set at 6 lpm. - M/2" connections with integrated filters and non-return valves. with top inlets (incorporating stopcocks) inline stopcocks M/2" mm for compression fittings with back inlets (without stopcocks) by flexibles hoses M/ , /2" 66 2 MONO FUNCION 230/2V electronic control unit (Ref RP) Standard mode, without the option to change the operating mode: automatic shut-off when hands are removed from sensor field and safety shut-off after 45 seconds, in case there is an object blocking the sensor. 3 Lithium 6V BAERY-OPERAED control unit (Ref ) delivered in standard mode. Standard mode closes automatically when hands are removed from sensor field and selfclosing safety closure after 45 seconds flow in case the user forgets to shut-off the tap. 4 Electronic Model with integrated battery (Ref or ) Standard mode, without the option to change the operating mode: automatic shut-off when hands are removed from sensor field and safety shut-off after 45 seconds, in case the user forgets. Flashing LED (battery power check) Basin, shower, urinal operating mode selector est Piles 2 batteries 3 Vcc Mode empo Dist. EV Shut-off delay R M B CP LP Detection Jumpers CP: short range LP: long range Connectors Ref Average life of batteries : 350,000 uses (check LED) Adjustable detection length: ~ 8 to 25cm (basin) * For illustration only based on tests undertaken in the laboratory. Battery life will depend on usage, quality of batteries and regular maintenance of mixers and taps. 20 Operation: Activates when user presence is detected. - Valve opens when a hand is detected within 4cm of the sensor. - he valve closes voluntarily (when the hand is detected for a second time) or automatically (after minute = safety shut-off). - emperature control on the thermostatic valve. Advantages: - Anti-Legionella: HW supply > 50 C up to the panel and duty flush programmed every 24 hours after the last use. (Duty flush for minute prevents water stagnation and the development of bacteria in the pipework = risk prevention). - Anti-scalding safety: immediate HW shut-off in case of supply failure. - Comfort: constant temperatures and precise temperature control. - 80% water savings: automatic shut-off and set flow rate. - Vandal proof and limited maintenance. > We recommend installing a floor trap (see p. 9) and soap dish (see p. 88). /2" Electronic Mixer or ap H.25 L.45 Ref.s & (see page 37) Mains supply 230/2V (495444RP) 6V battery-operated (495446) Electronic Mixer or ap H.380 L.200 Ref.s 495 or 445 (see page 38) Mains supply 230/2V (495445) 6V battery-operated (495446) Wall-mounted SOAP DISH Invisible fixings. matt chrome-plated ABS bright chrome-plated ABS Electronic Mixer or ap H.0 L.40 Ref.s 378MCH & (see page 37) Mains supply 230/2V (495444RP) Electronic ap L.85 for panels 50mm Ref 4457 (see page 4) Mains supply 230/2V (495444RP) 7050 Delabie BB792 valve certified MV3 BC 99/0906 PREMIX ELECRONIC PANEL Anti-bacterial duty flush (230/2V and battery-operated) Automatic duty flush (~ 45 seconds every 24 hours after the last use): avoids water stagnation and the development of bacteria in the pipework. Electronic Mixer or ap H.00 L.5 Ref.s & (see page 36) 6V battery-operated (integrated electronic unit ). Wall-mounted electronic tap L.90 Ref (see page 40) 6V battery-operated (integrated electronic unit )