Electromax combined electric flow boiler and direct unvented hot water cylinder (48 pages)
Summary of Contents for Heatrae Sadia Hotflo Horizontal 50L H 3kW
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Hotflo Horizontal 50 - 100 Litres Installation, operation and maintenance manual IMPORTANT Please read and understand these instructions before starting work. Please leave this leaflet with the user following installation.
In the interest of UK customers, we are continuously 1. Introduction endeavouring to make improvements in product quality. All the specifications stated in this document 1.1 General are therefore subject to change without notice. Our liability as the manufacturer may not be invoked in The following instructions are offered as a guide to the following cases: the user and installer.
Water may drip from the discharge pipe of the pressure-relief device and this pipe CAUTION must be left open to the atmosphere; (see Do not operate immersion heater until the page 14 for more details) appliance has been filled with water. 2.2 Recommendations The pressure-relief device is to be operated regularly to remove lime deposits and to verify...
3.3 Electrical diagram(s) TO ELEMENT OUTER CLADDING NEON ELEMENT EARTH (IMMERSION STUD) CUT-OUT SENSOR GREEN & THERMOSTAT SENSOR YELLOW CUT OUT BLUE/BLACK RESET BROWN/RED THERMOSTAT ADJUSTMENT SPINDLE TERMINAL BLOCK FACTORY SET AT 54°C BLACK WIRE A TEMP RED WIRE B SAFETY SCHEMATIC DIAGRAM Figure 2: Wiring Diagram...
4.4 Standard delivery 4. Description of the product The delivery includes: 4.1 General description Water heater This appliance is a purpose designed unvented Wall mounting brackets water heater. The water heater has a stainless steel inner vessel, which ensures an excellent standard of Literature pack corrosion resistance.
Situations where maintenance is likely to be 5. Before installation neglected or safety devices tampered with. Water supplies that have either inadequate 5.1 Installation regulations pressure or where the supply may be intermittent. Situations where it is not possible to safely pipe away any discharge from the safety valves.
6. Installation 6.1 General After reading the previous sections in this booklet and choosing a suitable location for the appliance please install, paying attention to the following water, electrical and commissioning sections. Mounting the water heater The water heater should be mounted using the brackets supplied and in the steps stated below: The top bracket bolts (3 off) require mounting to the unit.
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supplied and should be fitted. A suitable draining tap should be installed in the cold water supply to the water heater between the Expansion (Pressure) Valve and the appliance at as low a level as possible. It is recommended that the outlet point of the drain pipework be at least 1 metre below the level of the base of the appliance (this can be achieved by attaching a hose to the drain tap outlet spigot).
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the valve, with no more than 600mm of pipe between Discharge the valve outlet and the tundish (see Fig 7). It is a requirement of Building Regulation G3 that any Note: To comply with the Water Supply (Water Fittings) discharge from an unvented system is conveyed to Regulations, the tundish should incorporate a suitable where it is visible, but will not cause danger to persons in air gap.
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Worked example of discharge pipe sizing through the tundish; (b) be a separate branch pipe with no sanitary appliances connected to it; Fig. 7: shows a G1/2 temperature relief valve with a (c) if plastic pipes are used as branch pipes carrying discharge pipe (D2) having 4 No.
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Maximum Resistance Minimum Size Of Minimum Size Of Resistance Valve Allowed, Expressed As A Discharge Pipe Discharge Pipe D2 Created By Each Outlet Size Length Of Straight Pipe From Tundish Elbow Or Bend (I.E. No Elbows Or Bends) 22mm up to 9m 0.8m G1/2 15mm...
6.3 Electrical connections 7. Commissioning 7.1 General WARNING Disconnect from the mains electrical WARNING supply before removing any covers. Never attempt replace DO NOT operate the immersion until the immersion heater other than with the water heater has been filled with water. recommended immersion heater.
7.4 Benchmark 8. Operation The appliance is covered by the Benchmark Scheme 8.1 General which aims to improve the standards of installation and commissioning of domestic heating and hot water WARNING systems in the UK and to encourage regular servicing to optimise safety, efficiency and performance.
9. Maintenance 9.1 General Maintenance requirements Unvented hot water systems have a continuing maintenance requirement in order to ensure safe working and optimum performance. It is essential that the relief valve(s) are periodically inspected and manually opened to ensure no blockage has occurred in the valves or discharge pipework.
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Descaling immersion heater Refill the appliance. When water issues from the hot tap allow to run for a short while to purge any air and flush through the pipework. Open successive CAUTION hot taps served by the appliance to purge any air. With all hot outlets closed check all joints for leaks.
10.1 Fault finding 10. Troubleshooting Important Servicing should only be carried out by competent persons in the installation and maintenance of WARNING unvented water heating systems. Any spare parts used MUST be authorised parts. DO NOT tamper with any of the safety Disconnect the electrical supply before removing valves or controls supplied with the water any electrical equipment covers.
The appliance should not be removed from its The appliance has not been modified or tampered place of installation so a Heatrae Sadia authorised with in any way, other than by Heatrae Sadia or engineer can assess the complete installation. authorised engineers.
12. Decommissioning 12.1 Decommissioning procedure Isolate electrical supplies and make safe Isolate the water supply Drain the appliance Remove appliance Cap pipework Environmental information Products are manufactured from many recyclable materials. At the end of their useful life they should be disposed of at a Local Authority Recycling Centre in order to realise the full environmental benefits.
13.1 Spare parts list Item Description Part Number Electrical cover white small (50) 7037705 Electrical cover white large (80 & 100L) 7037706 Immersion heater gasket 95611708 Immersion heater fixings 7037707 Immersion heater assembly H - 3.0kW 240V~ 7037710 Expansion vessel 8 litre (not shown) 95607675 Expansion vessel 12 litre (not shown) 95607863...
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Parts Center OUR NATIONWIDE NETWORK OF CUSTOMER SUPPORT ENGINEERS Tel: 0344 292 7057 Heatrae Sadia has its very own dedicated nationwide network of highly trained www.partscenter.co.uk customer support engineers so you can have peace of mind that we’re always here to help.
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