Views
1 year ago

Cares ONE NG - Installation Manual

  • Text
  • Boiler
  • Heating
  • Flue
  • Appliance
  • Valve
  • Installation
  • Efficiency
  • Maintenance
  • Maximum
  • Domestic
  • Manual

INSTALLATION Gas Supply

INSTALLATION Gas Supply The gas installation and tightness testing must be in accordance with the requirements of BS6891. Ensure that the pipe size is adequate for demand including other gas appliances on the same supply. Electrical Supply The appliance requires an earthed 230V - 50 Hz supply and must be in accordance with current I.E.E. regulations. It must also be possible to be able to completely isolate the appliance electrically. Connection should be via a 3 amp double pole fused isolating switch with contact separation of at least 3mm on both poles. Alternatively, a fused 3 amp, 3 pin plug and unswitched socket may be used, provided it is not used in a room containing a bath or shower. It should only supply the appliance. Water Supply The boiler is suitable for sealed systems only. The maximum working pressure for the appliance is 6 bar. All fittings and pipework for the appliance should be of the same standard. If there is a possibility of the incoming mains pressure exceeding 6 bar, particularly at night, then a suitable pressure limiting valve must be fitted. The boiler is designed to provide hot water on demand to multiple outlets within the property. If there is a requirement for greater demands, for example if the boiler has several bathrooms and cloakrooms, a vented or unvented hot water storage system may be used. Showers Any shower valves used with the appliance should be of a thermostatic or pressure balanced type. Refer to the shower manufacturer for performance guidance and suitability. Flushing and Water Treatment The boiler is equipped with a stainless steel heat exchanger. The detailed recommendations for water treatment are given in BS 7593 (Treatment of water in domestic hot water central heating systems); the following notes are given for general guidance. If the boiler is installed on an existing system, any unsuitable additives must be removed. Under no circumstances should the boiler be fired before the system has been thoroughly flushed; the flushing procedure must be in line with BS 7593. We highly recommend the use of a flushing detergent appropriate for the metals used in the circuit. In hard water areas or where large quantities of water are in the system the treatment of water to prevent premature scaling of the main exchanger is necessary. The formation of scale heat compromises the efficiency of the thermic exchanger because small areas of scale cause a high increase of the temperature of the metallic walls and therefore add to the thermal stress of the heat exchanger. Demineralised water is more aggressive so in this situation it is necessary to treat the water with an appropriate corrosion inhibitor. Any treatment of water by additives in the system for frost protection or for corrosion inhibition has to be absolutely suitable for all metals used in the circuit. The use of a corrosion inhibitor in the sysem is recommended to prevent corrosion (sludge) damaging the boiler and system; If anti-freeze substances are to be used in the system, check carefully that they are compatible with the metals used in the circuit. ARISTON suggests the use of suitable anti-freeze products which will prevent rust and incrustation taking place. Periodically check the pH balance of the water/anti-freeze mixture of the boiler circuit and replace it when the amount measured is out of the range stipulated by the manufacturer (7 < pH < 8). DO NOT MIX DIFFERENT TYPES OF ANTI-FREEZE In under-floor systems, the use of plastic pipes without protection against penetration of oxygen through the walls can cause corrosion of the systems metal parts (metal piping, boiler etc), through the formation of oxides and bacterial agents. To prevent this problem it is necessary to use pipes with an “oxygen proof barrier”, in accordance with standards DIN 4726/4729. If pipes of this kind are not used, keep the system separate by installing heat exchangers of those with a specific system water treatment. Ariston suggests the installation of a magnetic filter on every installation. IMPORTANT Failure to carry out the water treatment procedure will invalidate the appliance guarantee. System Controls The boiler is electrically controlled and is suitable for most modern electronic time and temperature controls. The addition of such external controls can be beneficial to the efficient operation of the system. The boiler connections for external controls are 12V DC and so only controls of 12V DC that have voltage free contacts should be used. (page 26). ARISTON supply a range of wired and wireless system controls. Contact your supplier for more details. Location The boiler can be installed on any suitable internal wall (suitable sound proofing may be required when installing onto a stud partition wall). Provision must be made to allow for the correct routing of the flue and siting of the terminal to allow the safe and efficient removal of the flue products. A compartment or cupboard may be used provided that it has been built or modified for this purpose. It is not necessary to provide permanent ventilation for cooling purposes. Detailed recommendations are given in BS 5440 Part 2. If it is proposed that it is to be installed in a timber framed building then reference should be made to IGEM Document, IGE/UP/7 or advice sought from Gas Safe. Where a room sealed appliance is installed in a room containing a bath or shower, the appliance and any electrical switch or appliance control, utilising mains electricity should be situated specifically in accordance with current IEE Wiring Regulations. For unusual locations, special procedures may be necessary. BS 6798 gives detailed guidance on this aspect. 10 /

INSTALLATION Codensate Discharge The condensate discharge hose from the boiler must have a continuous fall of 2.5 o and must be inserted by at least 50mm into a suitable acid resistant pipe - e.g. plastic waste or overflow pipe. The condensate discharge pipe must have a minimum diameter of 22mm, must have a continuous fall and preferably be installed and terminated to prevent freezing. The discharge pipe must be terminated in a suitable position: 2. External termination of condensate drainage pipe via internal discharge branch (e.g. sink waste) and condensate siphon. i) Connecting into an internal soil stack (at least 450mm above the invert of the stack). A trap giving a water seal of at least 75mm must be incorporated into the pipe run, there also must be an air beak upstream of the trap. Tundish trap ii) Connecting into the waste system of the building such as a washing maching or sink trap. The connection must be upstream of the washing machine/sink. If the connection is downstream of the waste trap then an additional trap giving a minimum water seal of 75mm and an air break must be incorporated in the pipe run, as above. iii) Terminating into a gully, below the grid level but above the water level 3. External termination of condensate drainage pipe via internal discharge branch (e.g. sink waste - proprietary fitting). iv) Into a soakaway Note: If any condensate pipework is to be installed externally then it should be kept to a minimum and be insulated with a waterproof insulation and have a continuous fall. The total length of external pipe used should not exceed 3 metres. Tundish Some examples of the type of condensate terminations can be found below. trap 1. Internal termination of condensate drainage pipe to internal stack. 4. External termination of condensate drainage pipe via condensate siphon Tundish Tundish External pipe length max. 3 metres (must be insulated) Condensate Discharge Push fit the flexible condensate pipe into the outlet spigot on the appliance. Cut to length and locate outlet into a tundish / 11