Heatrae Sadia HRU ECO 4 User Manual
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Summary of Contents for Heatrae Sadia HRU ECO 4
- Page 1 HRU ECO 4 User manual...
- Page 3 Safety • Do not place objects on top of the appliance. WARNING • Regularly inspect the appliance for visible de- • Do not use this appliance for functions other fects. If any faults are found, contact Heatrae than those described in the booklet. Sadia immediately. • After removing the appliance from its pack- • The appliance must only be installed by a pro- aging, ensure that it is complete and undam- fessionally qualified person. aged. If in doubt contact Heatrae Sadia. Do • Ensure that the electrical system to which the not leave the packaging within reach of chil- appliance is connected complies with applica- dren or the infirm.
- Page 4 Safety Electronic components Sharp edges of the ducts The HRU ECO 4 contains parts which may be live. The valves and grilles in your home should also be Consult a professionally qualified installer in the cleaned regularly. These can be removed from the event of an alleged fault. All repairs and mainte- wall or ceiling. Beware of protruding duct sections. nance work should be carried out by a professionally These can be very sharp. qualified installer. Replacing the valves and grilles Maintenance The valves should always be placed back in their The ventilation unit should be inspected regularly for...
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Page 5: Table Of Contents
Table of contents 7. Maintenance 1. Why use balanced ventilation? 8. Warranty conditions 2. The correct use of your ventilation system 9. Manufacturer’s statement 3. Operation of the balanced ventilation 10. EU Declaration of Conformity system 11. Troubleshooting 4. Bypass and frost protection Subject to changes without notice. -
Page 6: Why Use Balanced Ventilation
1 Why use balanced ventilation? Ventilation is necessary Moisture content of the home In the past people built houses which were not air- Incorrect use of the ventilation system by the resident tight, which leaked air, for example, at the connection in combination with today’s well-insulated homes point of the wall and the floor or roof. Cracks were gives humidity an open field. The moisture content always visible around windows and doors. All these in the homes increases and can cause health, hu- openings ensured that large volumes of air moved in midity and mould problems. A family of four persons and out of the buildings. When the wind was blowing produces 14 to 20 litres of moisture per day just by the complete air content of the home was refreshed breathing, sleeping, cooking, washing, dishwashing, three to four times an hour. This ensured very good bathing, watering plants, etc. Many products, such ventilation of the home, but a lot of energy was lost. -
Page 7: The Correct Use Of Your Ventilation System
2 The correct use of your ventilation system Ventilation requires energy. The correct use of the Some health information: ventilation system can limit energy loss as much as • 5 to 20% of people have an airway disorder. possible. The number of house dust mite has increased a hundredfold in the past 25 years. Your home has a Heatrae Sadia supplied HRU ECO • The number of people suffering from Chronic 4 balanced ventilation system with heat recovery. Non-Specific Lung Disease has doubled in This system can contribute extensively to a healthy the last 15 years. -
Page 8: Operation Of The Balanced Ventilation System
3 Operation of the balanced ventilation system The central unit of the balanced ventilation system in Optimum efficiency your home is the HRU ECO 4 (heat recovery unit). The heat exchange is highly efficient. Independent This unit has two motors. One motor for air extrac- tests at the Building Research Establishment show tion and one for air supply. Air is extracted from the that up to 91% of the discharged warmth is reused kitchen, bathrooms, en-suites, utility rooms and toi- within the home. The heat loss is, therefore, only lets and, if required, from a storage room. In larger about 9%. properties more than one unit may have been in- stalled. -
Page 9: Bypass And Frost Protection
4 Bypass and frost protection 100% Bypass Balancing the air flow The Heatrae Sadia heat recovery unit HRU ECO 4 In a balanced ventilation system the volume of air is delivered as standard with a 100% bypass valve. coming from outside equals the amount of air dis- This valve is completely integrated in the unit and harged from the home. The outside air suction fan, ensures that, if required, the fresh outside air flows therefore, turns faster when the frost protection is... -
Page 10: Grilles
5 Grilles Grilles The volume of air that has to be extracted is speci- fied in the Building Regulations. The volume of air flowing into the home has to be in balance with the extracted volume. The volume of air extracted from and supplied to the home should, in other words, be equal. The minimum air volume per room is also determined by the Building Regulations. The set volume of air is determined based on achieving an optimum home climate without wasting energy. The air intake and discharge per room are not equal. The Extract Valve extraction and intake grilles all have their own fixed positions and settings. Supply Valve The setting of the grilles should not be changed. Changing the settings may dis- rupt the operation of the complete venti- lation system. Grilles and valves should... -
Page 11: System Control
6 System control Hard wired 3 position switch The HRU ECO 4 ‘Combiflow’ system has been de- signed to recover as much heat as possible and to function well using as little energy as possible. The Heatrae Sadia HRU ECO 4 can be operated using a radio frequency operation switch. Radio frequency (RFT) operation switch The RFT (radio frequency) operation switch (trans- mitter) can be used as a 3-position mode switch with timer feature for the HRU ECO 4 ventilation unit. This... - Page 12 Recommended hours of operation A new home contains approximately 2000 litres of moisture in its floors and walls. This moisture has to be removed from the home. It is recommend that a new home be ventilated more intensively during the first few months. For example, by setting the ventila- tion system to medium mode instead of low mode during the day time. The recommended hours of op- eration are provided in the list below. To guarantee a healthy environment in your home we recommend the following daily hours of opera- tion for the ventilation system: At most 14 hours in low mode. At least 8 hours in medium mode. At least 2 hours in high mode.
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Page 13: Maintenance
7 Maintenance Airflow Valve Grilles The grilles have to be cleaned regularly to ensure the constant and reliable operation of the ventilation system and for your own health. Make sure that the setting of the system (air flow) is not changed when you clean the grilles. The valve could be turned by accident and this would mean that the opening becomes larger or smaller. Each grille should be placed back in the same duct opening in the same room from which it was removed. - Page 14 An air trap with a minimum level difference of 250 mm is added in this connection. Above the air trap, a branch pipe is mounted at a 45-degree angle. This branch pipe has a cover with a rubber ring. This can be opened to easily top up the water trap. This is required to maintain or restore the water trap. Fixed coupling with fill opening If the air trap runs dry, the air from the house sew- erage will be able to enter through the unit and be discharged outside by the discharge ventilator. No smell will be caused but the discharge capacity will decrease. We recommend refilling the air trap quar- terly. The water will evaporate more quickly in sum- mer.
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Page 15: Warranty Conditions
8 Warranty conditions The Heatrae Sadia HRU ECO 4 warranty is valid for 2 years after installation date. The installation date is indicated on the type plate. The warranty does not apply to: • Disassembly and assembly costs. • Faults which are, in our opinion, caused by in- correct treatment, negligence or an accident. • Faults that have been caused by repairs or intended repairs by third parties without our authorisation. • Faults caused by irregular and / or incompe- tent maintenance. • Modification to the appliance. • Incorrect installation of the appliance. • Incorrect power supply, please refer to page 3 for correct power supply. Should the unit become damaged or malfunction, switch it off, isolating it from the mains supply, and contact Heatrae Sadia immediately. - Page 16 Spares Heatrae Sadia HRU Item No. Part Part No. Fan (1 only) 95607722 PCB Set 95615088 Sensors (not shown) 95607723 Frost Valve 95605905...
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Page 17: Manufacturer's Statement
Declaration of Incorporation According to Annex IIB of the Machinery Directive 2006/42/EC, Heatrae Sadia Heating Hurricane Way Norwich NR6 6EA hereby declare under our sole responsibility that the following products: Heat Recovery Ventilation System Type: HRU ECO 4 is in conformity with the following EC Council Directives: - Low Voltage Directive 2006/95/EC - EMC Directive 2004/108/EC and Applied Harmonised Standards: - EN60730-1 - EN61000-3-2 - EN61000-6-1... -
Page 18: Eu Declaration Of Conformity
10 EU Declaration of Conformity EC declaration of conformity According to Annex II of the Machinery Directive 2006/42/EC Name of installer: Full address and country: Hereby declare under our own responsibility, to have installed the following product with type designation: Heat Recovery Ventilation Type: HRU ECO 4 to which this declaration refers. We declare the entire installation (being a single machine) in conformity with the Machinery Directive. Place: Date: Name: Position: Signature: Company Stamp:... -
Page 19: Troubleshooting
If the problem persists, report the details to the installer. Climate for life Heatrae Sadia at all times strive to offer people an enjoyable living and working environment with its innovative solutions in climate systems. These are solutions for temperature, clean air and hot water in the domestic envi- ronment in which people and environment go harmoniously together. - Page 20 HEATRAE SADIA HEATING Hurricane Way, Norwich NR6 6EA www.heatraesadia.com SERVICE 01603 420100 EMAIL itho@heatraesadia.com 36006179_issue_02...