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Andris R - User & Installation Manual

  • Text
  • Valve
  • Discharge
  • Heater
  • Fitted
  • Mains
  • Tundish
  • Appliance
  • Electrical
  • Reducing
  • Anode
  • Andris
  • Manual

- Check that the

- Check that the discharge pipe drains safely to waste and is readily visible. - Check, in the case where some components are not factory fitted, that they are marked so as to refer to the warning label on the water heater. - Open all outlet taps. - Turn on the mains water supply. - Close taps in turn as water flow stabilises with no air bubbles. - Check for leaks. - Check that no water is passing through the safety valve(s). - Test the operation of the safety valve(s) by lifting/turning the lever/knob, and observing that water flows through and safely to waste. - Switch on electricity and set thermostat to at 60°C to reduce the build up of scale in hard water areas. - Check the water heats up. - Check that is secure and visible on the heater and related warning labels are fitted to the controls. - Demonstrate operation to user, including operation of safety valve(s) and what to do if it/they operate(s). - Give this handbook to the user and discuss future maintenance. - Drain and refill the entire system ensuring it is flushed in accordance with BS6700. MAINTENANCE a) For the user In order to obtain the best performance from the heater, the sacrificial anode must be checked every year and replaced as necessary. If the heating element is heavily coated with scale we recommend descaling and removing any lime deposit from the heater at the time of this inspection. Where the additional cold water controls are fitted, the expansion vessel will need to be recharged by the installer. Important note: The heater must be serviced annually. Failure to service which includes inspection and replacement of the sacrificial anode will invalidate warranty. b) For the installer WARNING: Switch off the power first. Access to the electrical components, the magnesium anode and water container is gained by unscrewing the 2 screws on the front cover. If the thermal cut-out has operated the cause must be found before resetting. To drain the heater close the service valve and: i) for under-sink models disconnect pipes and removed the heater from the wall. ii) for over-sink models undo the cold water supply pipe and open a hot water tap. The heating element may be removed (after taking out the thermostat phials on model 30 L) by undoing the M6 nut. The assembly should then be turned through 90° anti-clockwise to ease removal from the water container. Once the element is free from the water container the anode may then be inspected and removed if necessary. When reassembling the cover make sure that the regulation knob is coupled with the thermostat. Check controls (where fitted) as per the following: - Line strainer - with the water supply turned off remove screen from strainer and clean of any detritus; - Expansion vessel - with the water supply turned off and taps open, check expansion vessel pressure and top up as necessary; - Temperature & pressure relief valve - with the water supply turned on, check manually by lifting the test lever/ turning the test knob (ensure valve closes after testing); - Expansion relief valve - check manually by turning the test knob (ensure valve closes after testing); - Discharge pipes (D1) - from both temperature & pressure relief and expansion relief valve for obstructions; - Tundish & discharge pipe (D2)- open either valve gradually to produce a full bore discharge into tundish and D2 without any back pressure; - Pressure reducing valve - check that the correct outlet pressure is being maintained by recording the pressure at an in-line terminal fitting i.e. tap. FAULT FINDING 1) Pressure and temperature valve dripping/running all the time. Cause: Thermal cut-out and thermostat have failed (this is only the case if the water being discharged is near to boiling). Mains pressure is too high. A pressure reducing valve must be fitted (see fig. 3). 14

2) Pressure relief valve dripping/running all the time. Cause: Mains pressure is above 3.5 bar. A pressure reducing valve must be fitted (see fig. 2). 3) Dripping while unit heating. Cause: Not enough pipe work for expansion; or stop-cock, non-return valve or pressure reducing valve has been fitted on the cold mains supply (see fig. 2). If an expansion vessel has been fitted, the charge may have failed. 6) No water at all. 4) No hot water. Cause: Thermal Cause: cut-out Valve has incorrectly operated. fitted. The heating Debris element in the has mains. burnt-out. The thermostat Mains is water faulty. supply turned off. 5) Milky water. Cause: 7) This Grey is metallic a result of deposit heavily limed in the and water oxygenated water being heated. This is harmless and the cause is the water or Cause:Corrosion a loose jumper washer of in the the sacrificial outlet tap and anode. not the heater itself. (Note: Corrosion of the sacrificial anode is normal operation of the unit) 6) No water at all. Cause: Valve incorrectly fitted. Debris 8) in Rapid the mains. depletion of the sacrifical anode (see 7) Mains water Cause: supply Di-electric turned off. junctions not fitted Water softener fitted on incoming supply to water heater 7) Grey metallic (Softened deposit will in the cause waterthe anode to deplete more rapidly than hard water) Cause: Corrosion of the sacrificial anode. (Note: Corrosion of the sacrificial anode is normal operation of the unit) 8) Rapid depletion of the sacrifical anode (see 7) Cause: Note Di-electric Whilst junctions Ariston not do fitted not advise against the use of water softener devices, the Water softener fitted on incoming supply to water heater (Softened end user will cause must the be anode advised to deplete that more rapid rapidly depletion than hard water) of the sacrificial anode may occur as a result of the softened water which can result in metallic grey deposit Note Whilst in the Ariston water. do not advise against the use of water softener devices, the end user must be advised that rapid depletion of the sacrificial anode may occur as a result of the softened water which can result in metallic grey deposit in the water. 10 and 15 litre capacity units can be installed in a number of ways. The following guidelines are designed to help select the correct method prior to installation. Is the unit over 15 litres? YES NO Will the inlet pipework accomodate the expanded water without the hot water entering any supply pipe connected to the cold water draw-off? YES NO Do any check valve, stop taps with loose jumpers or devices that prevent reverse flow exist in the supply pipework? Is the mains pressure > 3.5 bar? YES NO YES NO Is the mains pressure > 3.5 bar? Is the mains pressure > 3.5 bar? YES NO YES NO Install Kit A + Kit B + Kit C Install Kit A + Kit C Install Kit A + Kit B + Kit C Install Kit A + Kit C Install Kit A + Kit B + Kit C Kit C Recommended 15

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