The Element by Dutypoint unvented water heater is a high quality stainless steel unvented cylinder which can provide hot water from a cold mains water supply of between 1.5 bar and 16 bar.
Models and Performance Models and Performance This section contains details on the different models in the Element UHP Cylinder range, with their relative specifications and performance. 2.1 General Technical Specification This table shows specifications which apply to every model in the Element UHP range Description Value Maximum Flow Rate...
Installation Instructions Installation Instructions WARNING: UNDER NO CIRCUMSTANCES MUST THE FACTORY FITTED TEMPERATURE PRESSURE RELIEF VALVE BE REMOVED. THIS WILL INVALIDATE ANY GUARANTEE OR CLAIM. THE COLD-WATER INLET VALVE ASSEMBLY MUST BE FITTED OR THE UNIT WILL NOT PERFORM SATISFACTORILY. THIS WILL INVALIDATE ANY GUARANTEE OR CLAIM. —...
4.7 Check Water Pressure and Flow Rates Dutypoint suggests 1.5 bar pressure and 20 litres/minute flow rate to be the minimum requirements for satisfactory operation. The unit will still operate below this, but it will not be possible to run two or more outlets at the same time.
IMPORTANT: IF A SECONDARY CIRCULATION CIRCUIT IS INSTALLED THEN A LARGER EXPANSION VESSEL MAY BE REQUIRED TO HANDLE THE INCREASE IN WATER VOLUME. — Calculate the additional water volume; — Contact Dutypoint Service on 01452 300590 regarding suitable vessel sizes. Figure 2: Secondary Return Connection Installation Secondary...
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Installation Instructions 4.15 External Expansion Vessel This smaller tank is connected to the cold-water inlet side of the vessel. Mount the tank according to separate manufacturer’s instructions provided with the external expansion vessel. A suitable expansion vessel is supplied with Element cylinders with external expansion. Pre-charge the expansion vessel to match the pressure relief valve (PRV) pressure setting.
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Installation Instructions Figure 4: Combination Inlet Valve Pressure relief valve connection Supply to cylinder Mains water connection Balanced cold To expansion water (if required) vessel...
Wiring Instructions Wiring Instructions Wiring instructions for the Element UHP Cylinder Range. WARNING: ALL ELECTRICAL WIRING SHOULD BE CARRIED OUT BY A COMPETENT ELECTRICAL CONTRACTOR AND MUST CONFORM TO THE LATEST IEE WIRING REGULATIONS — Do not switch the power on until the unit has been filled with water and all wiring has been earthed. Figure 5: S Plan Wiring Diagram...
Wiring Instructions Figure 6: Y Plan Wiring Diagram 5.1 Immersion Heater Secondary circuit connections MUST be made to the cylinder in accordance with the recommended installation diagram. A drain cock should be fitted in the cold water inlet to facilitate draining of the cylinder. Not supplied. IMPORTANT: ENSURE THAT THE IMMERSION HEATER THERMOSTAT IS SET TO A MAXIMUM OF 60°C.
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Wiring Instructions 5.2 Fitting the Twin Thermostat Figure 8: Cylinder Thermostat and Thermal Cut-Out Connections Housing Twin Thermostat Insert probes through hole in housing Secure front face using self-tapping screws provided...
Tundish Tundish The tundish supplied must be fitted so it is visible to the occupier. The discharge pipe must be 22mm copper pipe. Regulations do not permit more than 3 x 90-degree bends between the cylinder and the outflow. Between the temperature & pressure relief valve and the first 90-degree bend there must be a fall of at least 300mm.
Discharge Pipework Discharge Pipework 7.1 G3 Requirement ‘...there shall be precautions...to ensure that the hot water discharged from safety devices is safely conveyed to where it is visible but will not cause danger to persons in or about the building.’ 7.2 G3 Guidance The discharge pipe (D1) from the vessel up to and including tundish is generally supplied by the manufacturer of the hot water storage system.
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Discharge Pipework Figure 10: Typical Discharge Pipework Arrangement Metal discharge pipe (D1) from temperature relief valve to tundish Safety device (e.g. 600mm max. temperature relief valve) 300mm min. Sleeved through wall Discharge below fixed grating Metal discharge pipe (D2) Fixed grating from tundish with contin- uous fall of at least 1 in Trapped gully...
WARNING: IF COLD/ARM WATER EXISTS FROM THE TEMPERATURE AND PRESSURE RELIEF VALVE (TPV) OR FROM THE PRESSURE RELIEF VALVE (PRV): — Call your installer or call Dutypoint Service on 01452 300590. WARNING: IF VERY HOT WATER EXITS FROM EITHER VALVE: —...
Maintenance Maintenance Servicing and maintenance should only be carried out by a competent unvented hot water installer or Dutypoint authorised personnel. WARNING: BOTH THE PRIMARY AND SECONDARY SYSTEMS WILL CONTAIN VERY HOT WATER THAT WILL SCALD — Care must be taken when opening any joints, seals or valves.
Fault Finding 10 Fault Finding DANGER OF ELECTRIC SHOCK — Disconnect the electrical supply before removing any electrical equipment cover. Table 2: Faults, Causes and Remedies Fault Possible Cause Remedy One pipe circulation in the case of short pipe Install a non-return valve as close as possible Cylinder cools down overnight networks with low pressure loss to the cylinder...
In addition Dutypoint Ltd guarantees domestic stainless steel inner hot water cylinders for a period of 25 years from the date of purchase against faulty material or manufacture provided that: –...
Disposal 12 Disposal 12.1 Disposal of packaging Those responsible for installing the cylinder are responsible for disposal of any transport packaging. Observe national regulations. 12.2 Cylinder disposal You must not dispose of the cylinder or any of its accessories in normal domestic rubbish. The cylinder and accessories must be disposed of in accordance with national regulations.
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