Heatrae Sadia Hotflo Vertical 50L V 3kW Installation, Operation And Maintenance Manual

Heatrae Sadia Hotflo Vertical 50L V 3kW Installation, Operation And Maintenance Manual

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Hotflo Vertical 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.

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Table of Contents
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Summary of Contents for Heatrae Sadia Hotflo Vertical 50L V 3kW

  • Page 1 Hotflo Vertical 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.
  • Page 2: Table Of Contents

    Contents 11. Warranty ..............20 11.1 General .............. 20 11.2 Warranty conditions ........... 20 1. Introduction ............3 11.3 Water supply requirements ........ 20 1.1 General ..............3 11.4 Claims under warranty ........20 1.2 Symbols used ............3 11.5 Exclusions ............20 1.3 Abbreviations ............
  • Page 3: Introduction

    1. Introduction Our liability as the manufacturer may not be invoked in the following cases: 1.1 General Failure to abide by the instructions for using the The following instructions are offered as a guide to appliance. the user and installer. The installation must be carried Faulty insufficient maintenance...
  • Page 4: Safety

    The pressure-relief device is to be operated regularly to remove lime deposits and to verify CAUTION that it is not blocked; (see page 14 for more details) Do not operate the immersion heater until the appliance has been filled with water. How hot water can be drained.
  • Page 5: Technical Specifications

    3. Technical specifications 3.1 Technical data Hotflo Hotflo Hotflo Product Name 50L V 3kW 80L V 3kW 100L V 3kW Product Code 7037031 7037033 7037035 Electrical rating 3.0kW @ 240V ~ / 2.8kW @ 230V Max Inlet Pressure to PRV 1.6 MPa (16.0 bar) Weight Empty kg Weight Full kg...
  • Page 6: Dimensions And Connections

    3.2 Dimensions and connections Figure 1: General dimensions Item 50L V 3kW 80L V 3kW 100L V 3kW 1028 1084 1253 1134 OUTLET 22mm / 3/4"BSP (M) INLET 22mm / 3/4"BSP (M) TEMPERATURE / PRESSURE RELIEF VALVE. DISCHARGE PIPE CONNECTION 15mm COMPRESSION 1078 Table 3: General dimensions table...
  • Page 7: Electrical Diagram(S)

    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...
  • Page 8: Description Of The Product

    4. Description of the product 4.1 General description This appliance is a purpose designed unvented water heater. The water heater has a stainless steel inner vessel, which ensures an excellent standard of corrosion resistance. The outer casing is a combination of resilient thermoplastic mouldings and coated corrosion proofed steel sheet.
  • Page 9: Before Installation

    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.
  • Page 10: Installation

    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 following the steps stated below: The top bracket bolts will require mounting to the unit.
  • Page 11 A suitable draining tap should be installed in the cold water supply to the appliance 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).
  • Page 12 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.
  • Page 13 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.
  • Page 14 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...
  • Page 15: Electrical Connections

    6.3 Electrical connections 7. Commissioning WARNING 7.1 General 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.
  • Page 16: Benchmark

    8. Operation WARNING 8.1 General If the appliance is to be left unused following installation and commissioning e.g. unocupied properties, the appliance WARNING should be drained or regularly flushed through with fresh mains water once a water discharges from week. Temperature/Pressure Relief valve...
  • Page 17: Maintenance

    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.
  • Page 18 Descaling immersion heater With all hot outlets closed cheeck all joints for leaks. Close immersion heater housing cover ensuring the catches are pushed fully home until they CAUTION "snap" into place. Secure by replacing the screw previously removed. Be careful when removing the immersion heater as some water will be left in bottom of appliance.
  • Page 19: Troubleshooting

    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.
  • Page 20: Warranty

    The appliance has not been modified or tampered The appliance should not be removed from its with in any way, other than by Heatrae Sadia or place of installation so a Heatrae Sadia authorised authorised engineers.
  • Page 21: Decommissioning

    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.
  • Page 22: Spare Parts

    13. Spare parts 15 & 16 1 & 2 Figure 11: Spare parts...
  • Page 23: Spare Parts List

    13.1 Spare parts list Item Description Part Number Electrical cover white small (50L) 7037705 Electrical cover white large (80 & 100L) 7037706 Immersion heater gasket 95611708 Immersion heater fixings 7037707 Immersion heater assembly V - 3.0kW 240V~ 7037711 Expansion vessel 8 litre (not shown) 95607675 Expansion vessel 12 litre (not shown) 95607863...
  • Page 28 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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