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Summary of Contents for Helo HNS-S
- Page 1 REWARD YOURSELF Instructions for Use and Installation STEAM GENERATOR HNS – S (1317 - … - 17) 3,4 kW – 7,7 kW HNS – S Pro (1317 - … - 17) 9,5 kW – 16 kW CONTROL CENTRE Trend (RA – 31) Premium Wifi (RA –...
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Page 2: Table Of Contents
Instructions for Use and Installation HNS – S Contents Specifications Easy maintenance Accessories General Warnings Installation principle Overheating protector Main switch Ventilation Automatic flushing Automatic interim rinsing during use Descaling Cleaning the steam room Steam generator couplings Water and steam pipe connections Electrical connections Remote control Circuit board RJ connectors... -
Page 3: Easy Maintenance
Steam nozzles (3.4 – 6.0 kW 1 piece, 7.7 – 9.5 kW 2 pcs, 12 – 16 kW 3 pcs) (7819604) General The HNS-S steam generators are only intended for use in heating spa facilities. Using steam generators in areas other than steam rooms can damage the building's structure. - Page 4 Instructions for Use and Installation HNS – S Testing the water before using the steam generator. The water test kit supplied with the steam generator includes test slips which are used to determine water hardness as follows: Dip the test slip in water for about 1 second, take it out and shake off the excess water. After a minute, compare the colour code appearing on the test slip with the code key in the packet.
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Page 5: Overheating Protector
Instructions for Use and Installation HNS – S The thermostat should be fitted about 1700 mm above the floor, ideally on the wall opposite the door. We recommend sealing the thermostat installation hole with appropriate sealing material, so that moisture cannot enter the structures. -
Page 6: Descaling
Instructions for Use and Installation HNS – S Descaling Part of the limescale accumulated in the steam generator is flushed away during the automatic flushing and rinsing cycle, but some of it will remain. Therefore it is important that the steam generator's automatic flushing function is not out of order due to faulty electric connection. -
Page 7: Steam Generator Couplings
Instructions for Use and Installation HNS – S Steam generator couplings Connectors for the control Water filler valve ¾” panel and temperature sensor Main switch Connector for the Connectors for electric supply accessories Fuse T3,15AH Safety valve installation The safety relief valve is installed on the cover's steam hose with the supplied components. As a minimum, seal the threads using thread seal tape. -
Page 8: Water And Steam Pipe Connections
Instructions for Use and Installation HNS – S Water and steam pipe connections Connect the flexible water connection tube in the packaging to the water connection in the installation panel of the unit and to the cold water piping of the building. The water pressure must be at least 0.2 Pa (2 bar) and at most 1 MPa (10 bar). -
Page 9: Electrical Connections
Instructions for Use and Installation HNS – S Electrical connections The sauna heater must be connected to the mains by a qualified electrician and in compliance with current regulations. The steam generator should be connected with a semi-permanent connection. Use H07RN-F (60245 IEC 66) cables or a corresponding type. - Page 10 Instructions for Use and Installation HNS – S NTC connector for RJ10 connectors Surface sensor water tank sensor connectors RJ45 for additional relay board 4 units of RS 485 control panels DIP switches DIP switch positions for using a steam generator Switch diagram Contacto Main...
- Page 11 Instructions for Use and Installation HNS – S NOTE: Controlling the lights in the steam room with the circuit board is is only possible with resistive loads (incandescent light bulbs). The circuit board relay cannot withstand capacitive loads (switched-mode power supply units).
- Page 12 Instructions for Use and Installation HNS – S Troubleshooting WARNING! The steam generator may have several electric circuits. Make sure that the device is completely de-energised before carrying out any work. Checks and troubleshooting. In case of malfunction check that: the control panel and the steam generator are installed according to the connection diagrams the steam generator is installed properly according to this instruction manual the downpipe has adequate descent towards the drain...
- Page 13 Instructions for Use and Installation HNS – S Warm water comes out of the steam nozzle, there is little or no steam in the steam room. Cause: The electromagnetic valve for the incoming water is stuck open because of dirt or an electrical fault. See test 3.
- Page 14 Instructions for Use and Installation HNS – S TEST 1. Checking limescale deposits in the water tank. Open the steam generator's uppermost lock nut. Lower a torch bulb that is connected to a battery with wires into the opening use it to light up the interior of the water tank. If there is a layer of limescale thicker than 3 cm on the bottom, the steam generator has not been serviced and the limescale has not been removed according to the instructions.
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