Heatrae Sadia HRU ECO 4 Installer Manual
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Summary of Contents for Heatrae Sadia HRU ECO 4
- Page 1 HRU ECO 4 Installer manual...
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Page 2: Table Of Contents
Table of contents 1. General Information 1.1 Introduction 1.2 Warranty and Liability 1.3 Safety 2. Technical Information 2.1 General Description 2.2 Description of Parts 2.3 Dimensional Sketch 2.4 Bypass and Frost Protection 2.5 Specifications 2.6 Capacity Graph 2.7 Sound Data 2.8 Dipswitches 3. -
Page 3: General Information
England and Wales) details 4 clearly defined systems of ventilation to dwellings. System 4 - Continuous mechanical extract with heat recovery (MVHR) is complied with by the new HRU ECO 4 ultra-high efficiency whole house heat recovery ventilation system. -
Page 4: Safety
Liability The HRU ECO 4 was designed for balanced ventilation systems for both high-rise and low-rise dwellings. He- atrae Sadia is not liable for any other type of application that has not been discussed and approved by them. Heatrae Sadia is not liable for any damages caused by: •... -
Page 5: Technical Information
2.1 General Description The purpose of the HRU ECO 4 is optimum ventilation of homes with minimal energy loss. Air is extracted from the kitchen, bathrooms, ensuites, utility rooms and the toilet and, if required, from a storage room. Air is supplied to the bedrooms and living room. -
Page 6: Dimensional Sketch
2.4 Bypass and Frost Protection Bypass The heat recovery unit HRU ECO 4 is delivered as standard with a fully integrated bypass valve. This valve is fully automatic. The bypass ensures that the air from outside is fed around the heat exchanger. It seals the path to the heat exchanger completely. - Page 7 The power with which the bypass valve discharges heat depends on the temperature of the air inside and the temperature of the air outside. It also depends on the air volume discharged by the HRU ECO 4. The rule of thumb for the HRU ECO 4 is to discharge 50 W thermal power per degree of temperature difference at 150 m3/h (medium mode).
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Page 8: Specifications
0.56 * Values to be entered in the EPC calculation according to NEN 5128. Weight: 24 kg + 1 kg The thermal efficiency of the HRU ECO 4 has Dimensions: 848 mm (H) been determined by TNO at 96.2%, reference 730 mm (W) number TNO-MEP 2002KTW/534. -
Page 9: Sound Data
2.7 Sound Data Sound level Lw(A) Total 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz [dB(A)] [dB] [dB] [dB] [dB] [dB] [dB] [dB] [dB] <23.5 47.2 30.4 23.3 21.4 13.2 11.5 30.5 45.2 34.2 32.1... -
Page 10: Installation Regulations
The HRU ECO 4 should be located on a suitable wall. • The HRU ECO 4 requires 230 V 50 Hz mains voltage. The tolerance for the mains voltage is 5 %. If fitted on the ring main, the unit needs to fitted with a 3 Amp fuse. -
Page 11: Mounting The Unit
Frost protection valve Extract from dwelling Exhaust to atmosphere Fresh air intake from atmosphere The HRU ECO 4 is delivered as standard Supply to dwelling with a mounting set. The mounting materials (High-Rise Building) are to be procured elsewhere. The location of the drill holes is indicated in the drawing. - Page 12 Standard version. Turned version. Suction of Fresh Outside Air This nozzle is used for the intake of outside air. This duct should be thermally insulated and damp proof to prevent condensation on the outside of the duct. Discharge to Outside This nozzle is used for the discharge of air.
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Page 13: Connecting The Condensation Discharge
3.6 Connecting the Condensation Discharge The condensation discharge piping is located at the bottom of the HRU ECO 4. Connect this properly to prevent damage to the unit by condensation. The exterior diameter of the glued joint of the supplied condensation discharge coupling is 40 mm. -
Page 14: Control Using Rft Switch
3.8 Control using RFT Switch The HRU ECO 4 can be operated using the RFT switches. These are used to switch between low, medium and high mode. The low mode is used at night, the medium mode during the day when there are people at home and the high mode when cooking, showering or bathing. -
Page 15: Maintenance
4 Maintenance 4.1 Cleaning Grilles without Filters Grilles without filters can be taken out of the duct opening (twist to the left). Before you clean the grille in warm water (with detergent), remove the foam plastic ring. After cleaning, the grille can be replaced in the duct opening with a twist to the right. -
Page 16: Maintenance Of Ducting
Turn the front 90 degrees clockwise until the front door is vertically in the unit. • Place the feeder cable in the wall socket. • The HRU ECO 4 is ready for use. • Replacement heat exchangers are available from Heatrae Sadia. 4.3 Maintenance of Ducting... -
Page 17: Fans
4.5 Fans The unit has two energy-saving direct current motors. The fans have a permanent magnet motor and therefore, the required energy supply is minimal. The blades are robust and bent backwards. The shape of the blades ensures the fan is less susceptible to long-term contamination. The maintenance frequency for the cleaning of the blades is normally once every six years but this depends on the maintenance of the filters. -
Page 18: Troubleshooting
5 Troubleshooting 5.1 Troubleshooting Work Method The following table contains a list of possible problems. Each problem is followed by a number. This is the number of the possible cause of the problem. This number can be used to find the possible cause in the table of causes. -
Page 19: Table Of Causes
5.3 Table of Causes No. Possible Problem Number of Solution No power supply to the wall socket. The supply cable is not fitted correctly to the unit connector. The fuse on the printed circuit board is faulty. The fan’s connector on the printed circuit board is not fitted correctly. 4;... -
Page 20: Spares
6 Spares Heatrae Sadia HRU Item No. Part Part No. Fan (1 only) 95607722 PCB Set 95615088 Sensors (not shown) 95607723 Frost Valve 95605905... -
Page 21: Erp Technical Data
7 ErP Technical Data Description of device Brand - Heatrae Sadia Type - HRU ECO 4 House (95060002) Technical Specification Specific energy consumption class Specific energy consumption SEC = -38.00 kWh/(m2a) Residential Ventilation Type of ventilation unit VU = Unit (VU) - Page 22 Description of device Brand - Heatrae Sadia Type - HRU ECO 4 Apartment (95060003) Technical Specification Specific energy consumption class Specific energy consumption SEC = -38.00 kWh/(m2a) Residential Ventilation Type of ventilation unit VU = Unit (VU) Bidirectional Ventilation unit (BVU)
- Page 23 Notes:...
- Page 24 HEATRAE SADIA HEATING Hurricane Way, Norwich NR6 6EA www.heatraesadia.com SERVICE 01603 420100 EMAIL itho@heatraesadia.com 36006182_issue_03...