Heatrae Sadia HOTFLO Installation And User Instructions Manual
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Heatrae Sadia HOTFLO Installation And User Instructions Manual

10 and 15 litre unvented water heaters
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HEATRAE SADIA
The quality name in water heating
Installation and User Instructions
for the
HOTFLO
10 and 15 litre Unvented Water Heaters
Please read and understand these instructions before starting
work.
Please leave this leaflet with the user following installation
36 00 5719 Issue 3
1

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Summary of Contents for Heatrae Sadia HOTFLO

  • Page 1 HEATRAE SADIA The quality name in water heating Installation and User Instructions for the HOTFLO 10 and 15 litre Unvented Water Heaters Please read and understand these instructions before starting work. Please leave this leaflet with the user following installation...

  • Page 2: Technical Specifications

    C/7 bar 1.0 IMPORTANT INSTALLATION POINTS 1.1 The Hotflo unvented water heater MUST be fitted with a Pressure (expansion) Relief Valve. This MUST be fitted to the cold water supply near the heater. FAIL- URE TO PROVIDE ADEQUATE PRESSURE RELIEF WILL INVALIDATE ANY GUARANTEE AND LEAD TO A DANGEROUS INSTALLATION 1.2 Expansion can take place within the cold water supply PROVIDED THAT BOTH :...
  • Page 3 WARNING: IF WATER FLOWS FROM THE PRESSURE RELIEF VALVE OR TEMPERATURE/PRESSURE RELIEF VALVE THE ELECTRICITY SUPPLY MUST BE SWITCHED OFF IMMEDI- ATELY. CONTACT THE HEATRAE SADIA SERVICE TEAM (Tel: 01603 420330) OR AN APPROVED INSTALLER. Diagram 1 For inlet pressures up to 4.1 bar (60 p.s.i.) Diagram 2 For inlet pressures up to 4.1 bar (60 p.s.i.) where expansion...

  • Page 4: Installation - General Requirements

    Diagram 4 Temperature/Pressure Relief Valve NOTE: The fitting of Pack U6 does not alter the requirements detailed in Points 1.1 to 1.4 (Diagrams 1 to 3) 2.0 INSTALLATION - GENERAL REQUIREMENTS: 2.1 National Wiring rules may contain restrictions concerning the installation of these units in bathrooms.

  • Page 5: Installation - Electrical Requirements

    Diagram 5 Dim ension 10 Litre 15 Litre NOTE: If fitting Pack U6 the valve will add 110mm to the overall height (Dimension B) 3.0 INSTALLATION - ELECTRICAL REQUIREMENTS WARNING: This appliance must be earthed. It is suitable for a.c. supply only.
  • Page 6 4.0 INSTALLATION - DISCHARGE PIPE REQUIREMENTS 4.1 The discharge outlet from the Pressure (expansion) Relief Valve and, where fitted, the Temperature/Pressure Relief Valve must be connected to a discharge pipe. It is recommended that a tundish be installed in the discharge pipe to give a visible indication that the valves are operating.

  • Page 7: Maintenance

    6.0 MAINTENANCE Little maintenance is required, however if an element failure occurs the inner container of the unit must be replaced. To do this: 6.1 Switch off and disconnect the electrical supply. Turn off the water supply to the unit. 6.2 Open a hot tap to relieve any system pressure.
  • Page 8 6.7 Lift the inner container out with the top insulation section. Put the insulation to one side. Please Note: the inner container is manufactured from recyclable materials, dispose of the old container at a Local Authority Recycling Centre. Insert the new inner container assembly ensuring it is in the correct orientation (refer to Diagram 6).

  • Page 9: Spare Parts

    9.0 SPARE PARTS The following comprehensive list of spare parts is available for your Hotflo water heater. Please refer to the Rating Label on the side of your heater before ordering to ensure the correct spare part is obtained. DO NOT REPLACE WITH PARTS NOT RECOMMENDED BY HEATRAE SADIA - THIS WILL INVALIDATE YOUR GUARANTEE AND MAY RENDER THE INSTALLATION DANGEROUS.

  • Page 10: Fault Finding

    10.0 FAULT FINDING Disconnect the electrical supply before removing the terminal cover. It is recom- mended that any service operations on the Hotflo heater are carried out by a compe- tent person. FAULT POSSIBLE CAUSES ACTION Water not heating 1. Electrical supply fault 1.

  • Page 11: User Instructions

    12.0 USER INSTRUCTIONS 12.1 The Hotflo unvented heater stores water at the temperature set on the adjustable thermostat. This can be set to give temperatures in the range of 10 to 70 C.

  • Page 12: Environmental Information

    1. The unit has been installed in accordance with these instructions and all necessary inlet controls and safety valves have been fitted correctly. 2. Any valves or controls are of Heatrae Sadia recommended type. 3. The unit has not been tampered with and has been regularly maintained as detailed in these instructions.

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