Installation, commissioning and servicing instructions

Transcription

1 8 Inclined pressure reducing s opyright 0 aleffi H Series Installation, commissioning and servicing instructions Function Pressure reducing s are installed in residential water systems to reduce and stabilise inlet pressure from the water mains supply which is generally too high and variable for domestic appliances to function properly. These s can also be used to control inlet pressure to domestic hot water storage and in hot water applications. The aleffi H series have been specifically designed and manufactured to meet the requirements of S7.:00 Valves primarily for use in warm and hot water systems - P. : ontrol s. Product range S 7. of 067 Series H US Pressure reducing N (/ ), N 0 (/ ) N ( ) Female connections (ISO 7/) ode 0H US -way pressure reducing N 0 (/ ) Female connections (ISO 7/) ode H US -way pressure reducing N 0 (/ ) Female connections (ISO 7/) Technical specifications Materials: ody: over: ontrol spindle: artridge: omponents: iaphragm: Seals: Strainer: Plug ( way model): dezincification resistant alloy R N 6 W60N P6G0 stainless steel POM brass N 6 W67N PM PM stainless steel PPG0 Performance: Pressure setting range: kpa; 00 kpa (code H US) Factory setting: 00 kpa Max. inlet pressure: 000 kpa Max. working temperature: 80 Medium: water omplies with: S 7.

2 S 7. WMK 067 Series Pressure range: kpa Max inlet pressure 600 kpa Flow rate: 00 kpa 600 kpa Max temperature: 60 imensions S 7. WMK067 Series Pressurerange: kPa Maxinletpressure600kPa Flowrate: 00kPa 600kPa Maxtemperature: 60 ode H H 6H / / 7, 7, Ø 6 Ø 6 Mass (kg) 79 0, 8, 0,6 7, Ø 6 9 0, Pressure drop diagram Under following conditions: - Inlet pressure: 800 kpa - Outlet set pressure: 00 kpa p (kpa) / / p (m w.g.) N 0 0, 0, 0 Flow rate (S 7.): N N 0 N 0 l/min 0 l/min 0 00 kpa 70 l/min 0 l/min 0 00 kpa 7 l/min l/min 600 kpa 0 0 Flow rate (l/min) (m /h) S 7. WMK067 Series Pressurerange: kPa Maxinletpressure600kPa Flowrate: 00kPa 600kPa Maxtemperature: 60 p (kpa) / p (m w.g.) ode N 0H 0 / 7, 0 Ø 6 8, Mass (kg) 0,9 0 0, Flow rate (S 7.): N kpa 0 00 kpa 600 kpa 0, Flow rate (l/min) (m /h) p (kpa) / p (m w.g.) , 0, Flow rate (l/min) (m /h) ode H N 0 / 67 6 Ø 6 Mass (kg) 0,9 Flow rate (S 7.): N kpa

3 Installation The pressure reducing must be installed by a licensed plumber and in accordance with S/NZS 00, relevant local requirements and following these instructions. heck Pressure reducing Line strainer (where fitted) Isolating MINS SUPPLY Pressure reducing Line strainer (where fitted) Isolating MINS SUPPLY heck Straight outlet ngle outlet Inlet Outlet Inlet Plug Plug Outlet System without recirculation STORG HOT WTR HTR Tempering OL WTR INLT

4 . Flush the system.. Install the pressure reducing in any position either vertically or horizontally, not upside down, paying attention to the direction of flow indicator on the body of the.. aleffi H series pressure reducing s are factory set at 00 kpa.. If required, reset the pressure by turning the screw on the top of the plastic cover. Turn it clockwise to increase the pressure and anticlockwise to decrease it. Note: code H has fixed setting, not adjustable. Recommendations for installation. Installation below ground If installing the H series underground, please ensure that steps are taken to protect the from becoming frozen in frost-prone areas. Please allow yourself sufficient space to remove the cartridge should maintenance be required. The reading of a gauge for setting purposes may be difficult and an alternate means of checking downstream pressure may ne necessary.. Water hammering This is one of the main problems which may affect pressure reducing s. It is best to fit special devices to absorb water hammering when fitting pressure reducing s in systems at risk. WRNING: If it is critical to maintain the downstream pressure setting to protect equipment, as a safety measure, we recommend that a pressure, or safety, relief is installed downstream of the pressure reducing. Trouble-shooting. Increased downstream pressure near a water heater This problem is due to the water being heated by the water heater. There is no relief of the pressure because the reducing is correctly closed. The solution is to install an expansion vessel (between the heater and the reducer) to absorb the pressure increase.. The pressure reducing does not maintain its set pressure In most cases this is the result of impurities that deposit on the seat causing leakage with a resulting increase in pressure downstream. The solution is to fit a filter upstream from the reducer and subsequently to maintain and clean the cartridge (see Maintenance).

5 Maintenance Proceed as follows for periodic cleaning of the strainer and inspection of the cartridge: Turn off upstream water supply to the pressure reducing and open an outlet downstream to relief pressure Unscrew (anticlockwise) the setting screw to decompress the spring inside. Unscrew the cover. xtract the cartridge with the aid of pincers to grip the head of the screw. fter inspection and cleaning, refit the cartridge or, alternatively, fit a replacement cartridge. 6 Reset the (see Installation). Safety If the pressure reducing is not installed, commissioned and maintained properly in accordance with the instructions contained in this manual, it may not operate correctly, and may cause damage to objects and/or persons. Make sure that all the connections are water-tight. When installing the pressure reducing, make sure not to over-tighten the connections to the as, over time, a failure can occur with subsequent water leakage causing damage. In the case of highly aggressive water, arrangements must be made to treat the water before it enters the pressure reducing, in accordance with current legislation. Otherwise, the pressure reducing may be damaged and not function correctly. Leave this operating manual with the user

6 USTRLIN GNT ll Valve Industries Unit, 8-8 Sir Joseph anks rive Kurnell NSW Ph: (0) 8 98 Fax: (0) 8 98 mail: info@all.com.au LFFI S.R. 9, n. 800 Fontaneto d gogna (NO) Italy Tel. Int R.. Fax mail:info@caleffi.com