Related Manuals for onsen ONHW26NG50
Summary of Contents for onsen ONHW26NG50
- Page 1 as W r He eate HW26N NG50 HW26L LP50 HW26N NG60 HW26L LP60 HW30N NG60 Insta allatio on and d Ope eratin ng Ma anual ...
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Page 2: Table Of Contents
CONTENTS Important Notes ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 2 Installation Instructions ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 3 Installation Environment ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 3 Product Accessories‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 8 Typical Installation of Outdoor Hot Water Heater (No Venting Required)‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 9 Installation (Hot Water Heater)‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 10 Water Supply‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 12 Installation (Water Supply Lines)‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 13 Installation (Gas Supply Lines)‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 15 Power Connection ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 17 Remote Control Installation (For Certain Models ONLY)‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 19 Installation Checklist ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 22 About The Water Heater‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 24 Technical Specification‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 26 Turn ON The Water Heater ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 31 Setting Water Temperature‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 32 ONSEN Remote Control (For Certain Models ONLY)‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 33 Cleaning and Maintenance ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 36 Troubleshooting ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 40 Replacement Parts‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 42 Product Record ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 44 Maintenance Record ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 45 Page1 Version 1.0Aug 2018 ... -
Page 3: Important Notes
Important Notes Dear Customer Thank you for choosing our product. This appliance is easy to use; however please read this handbook carefully before operatingit. Herein, you will find the correct method of installation and tips for best use and maintenance of the product. This appliance is designed to be easy for an adult to use at home. Children should be supervised to ensure they do not play with the appliance. Not suitable for use in mobile homes. This appliance must be connected in accordance with current water, gas, and electrical regulations. A fixed wiring installation is to be done only by an authorised electrician. Improper installation, adjustment, service, or maintenance can cause death, personal injury, or property damage. ... -
Page 4: Installation Instructions
Installation Instructions This appliance shall be installed by authorised personnel in accordance to the manufacturer’s instructions and current local electrical, gas, and water regulations. This appliance must be installed in accordance with: AS/NZS 3000 – Electrical Installations (Wiring Rules) AS/NZS 3500.4 – Plumbing and Drainage (Heater Water Services) AS/NZS 5601 – Gas Installations (for Australia) Local building, water, and gas fitting regulations Local regulations and municipal building codes including local OH&S requirements Installation Environment This hot water heater is designed for OUTDOOR installation only. The hot water heater must be installed in a position where it is above ground, in open air with natural ventilation, where, in the case of gas leakage or product combustion, gas can be released and dispersed rapidly by ventilation or convection. The unit must be mounted vertically with the water and gas connections on the underside pointing downwards. For appliances installed on elevated structures or under floors specific requirements must be adhered to. Refer to AS/NZS 5601 Section 6 for more information. ... - Page 5 halogenated hydrocarbons is safe for human breathing, however when passing through a gas flame, corrosive elements are released and will shorten the operating life of the gas appliance. Warranty is void when failure is due to operation of the appliance in corrosive conditions. Warning! Ensure that the gas supply is as stated in product data label, i.e. natural gas or LP gas. Power connection and product installation must be in accordance with manufacturer’s instruction & local regulations. Installation must only be carried out by authorised or qualified personnel. The hot water heater is an outdoor unit, and MUST NOT be installed indoors. The unit must be installed in a location where it is easy accessible for maintenance and repair. Power plug and socket installation area should be considered waterproof or free from rain splash. There must be no electrical wiring and electrical appliances on top of the water heater. Distance between the water heater and electrical appliances should be more than 500mm horizontally. Distance between water heater and the flammables should be no less than 150mm. The explosive and volatile flammables, such as gasoline, diesel, alcohol etc must be kept far away from the water heater. ...
- Page 6 The gas hot water heater must be installed in a location with good ventilation. However, there must be no window or opening holes 600mm in front, 300mm above, 150mm left and/or right, and 150mm lower than the unit’s venting holes to avoid flow of combustion exhaust entering the dwelling. The previously mentioned restricted zones are shown as shadow in Figure 1. Warning! Do not install the unit at location subject to vibrations. Do not install the unit in a recreational vehicle, mobile home, boat or other watercraft. Do not install the unit near vents for heating and cooling without a minimum clearance of 1.2m. According to AS/NZS 3500, water supplied to areas used primarily for personal hygiene is limited to a maximum of 50°C. If the appliance is pre‐set at the factory to deliver water not exceeding 50°C, local regulation may permit its installation without a temperature limiting device. Installation without a temperature limiting device is shown in Figure 2. Contact the local authorities to check if there is an uncertainty. ...
- Page 7 Gas Water Supply Fittings Model Weight Consumption Pressure (kPa) Number (kg) (MJ/hr) Min. Max. Hot Cold Gas Condensate ONHW26NG50 /ONHW26LP50 / ONHW26NG60 205 20 1000 19.3 R ¾ R ¾ R ¾ ‐ / ONHW26LP60 ONHW30NG60 235 20 1000 21.4 ...
- Page 8 Ref Item Min Clearance (Fan assisted) (mm) 1 Below eaves, balconies and other projections : ‐ Appliances up to 50MJ/hr input 200 ‐ Appliances over 50MJ/hr input 300 2 From the ground, above a balcony or other surface* 300 3 From a return wall or external corner* 300 4 From a gas meter (M) 1000 see AS/NZS 5601 Cl.5.11.5.9 for vent terminal location of regulator see AS/NZS 5601 Table 6.7 for New Zealand requirements 5 From an electricity meter or fuse box (P) ^ 500 6 From a drain pipe or soil pipe 75 7 Horizontally from any building structure* or obstruction facing a terminal 500 8 From any other flue terminal, cowl, or combustion air intake* 300 9 Horizontally from an openable window, door, non‐mechanical air inlet, or any other opening into a building with the exception of sub‐floor ventilation : ...
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Page 9: Product Accessories
NOTES: Where dimensions 3, 9 or 10 cannot be achieved an equivalent horizontal distance measured diagonally from the nearest discharge point of the terminal to the opening may be deemed bythe Technical Regulator to comply. See AS/NZS 5601 Cl 6.9.4 for restrictions on a flue terminal under a covered area. See AS/NZS 5601 Figure J3 for minimum clearances required from a flue terminal to an LP Gas cylinder. Aflue terminal is considered to be a source of ignition. For minimum clearances not addressed above acceptance should be obtained from theTechnical Regulator. Minimum clearances 4 and 5 also apply to any combustion air intake openings of appliances. Product Accessories The hot water heater comes with the accessories listed below. Please verify the accessories have been supplied before installation. ... -
Page 10: Typical Installation Of Outdoor Hot Water Heater (No Venting Required)
Typical Installation of Outdoor Hot Water Heater (No Venting Required) Note:ONSEN hot water heater is for outdoor installation ONLY Figure 5 Page9 Version 1.0Aug 2018 ... -
Page 11: Installation (Hot Water Heater)
Installation (Hot Water Heater) Wall reinforcement is required when the wall is not strong enough to hold the water heater. Failure to do so could result in personal injury and / or property damage. The water heater should be installed in a position where it is easy to access and operate. The water heater is designed to be installed either inside the wall cavity between wall studs or outside wall cavity. Make sure a properly earthed power outlet (240Vac / 50Hz) is available beside the unit. The hot water heater comes with a 1.5m length power cord – see Figure 6. Figure 6 Position the upper mounting bracket and partially screw the expandable screw in place. The clearance between the screw head and the wall should be about 3mm. Hang the upper bracket onto the screw – see Figure 7. Figure 7 Page10 Version 1.0Aug 2018 ... - Page 12 Secure the to p mounting b bracket to th he wall with t two mounting g screws, and d upon comp pleting this ta ask, secure th he ower mounti ng bracket to o the wall wit h two mount ting screws as s shown in Fig gure 8. Figure Horizontal Ob bstructions AS/NZS 5601 stipulates a minimum ho orizontal clea arance of 500 0mm betwee en a building g structure an nd ...
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Page 13: Water Supply
Water Supply Refer to Table 1, Page 6, for water supply pressure requirements. An approved pressure limiting valve may be required if the maximum water pressure exceeds the figure shown in Table 1. In order to obtained optimal hot water flow, minimum water supply pressure stated in Table 1 must be met. The hot water heater may operate at lower pressure, however rated flow may not be achieved. Contact ONSEN for gravity fed or low pressure installations. Water supply in most cities will meet the water quality requirements as shown in Table 2. If you are unsure about your local water quality, contact the water authority. If sludge or foreign objects are present in the water supply, a suitable filter or strainer should be incorporated in the water supply to water heater. The water heater MUST ONLY be used in the following water supply conditions to prevent product damage and ... -
Page 14: Installation (Water Supply Lines)
Installation (Water Supply Lines) Install the service valve at the Cold water inlet port to the heater. This valve is used when servicing and draining the unit – see Figure 10. The water piping supplying the heater should be the same nominal size as the water heater fittings on the unit. Figure 10 Before connecting the service valve to water heater, run water through the supply pipe to purge sand, debris, air, caulking, etc – see Figure 11. Figure 11 Position a bucket at the water outlet of the heater and open the service valve. Allow the cold water flow through the water heater for approximately 15 seconds and close the service valve – see Figure 12. Figure 12 Page13 Version 1.0Aug 2018 ... - Page 15 With the service valve closed, remove the water filter, clean it, and refit the filter – see Figure 13. Figure 13 Warning! Do NOT reverse HOT and COLD water connections. The flowrate of hot water may vary when there is more than one water outlet being used at the same time. The piping must be completely drainable. If any water outlet is located higher than the water heater, it is recommended a drain valve is installed at the lowest point – see Figure 14. Figure 14 Union connections are recommended for the Cold and Hot water lines. These allow water heater to be disconnected easily for servicing. For the Hot water outlet connections: Connection between water heater and the closest hot water outlet should be as short as possible but not less than 2 metres. Local codes shall govern the piping used for water connections. For energy conservation and to prevent freezing, both Cold and Hot water supply lines should be insulated. Page14 Version 1.0Aug 2018 ...
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Page 16: Installation (Gas Supply Lines)
Installation (Gas Supply Lines) Install a service valve to the gas inlet of the appliance – see Figure 15. Figure 15 Using proper size piping, fittings, and components to connect the gas line to the water heater. It is recommended that a sediment trap be fitted at the lowest point in the gas supply line – see Figure 16. Figure 16 The gas operating limit must NOT exceed 5.0kPa for Natural Gas (NG) or 7.0kPa LP gas. For input adjustment, minimum gas inlet pressure (with main burner on) is stated on the water heater data label. Contact your gas supplier for correction if gas pressure is out of the normal range. Page15 Version 1.0Aug 2018 ... - Page 17 For installation above 2000ft (600m) elevation, contact a qualified service technician to make proper altitude adjustments. Warning! Do NOT install the water heater at elevations above 2000ft (600m). Please contact ONSEN customer service for future advice. Hot and Cold Supply Line Insulation Suitable pipe insulation and/or electric heat‐tracing should be used to prevent water in the pipes from freezing. ...
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Page 18: Power Connection
Power Connections The power supply used for the water heater is 240Vac / 50Hz. A dedicated circuit is recommended for the water heater. Do NOT connect to a GFCI or AFCI circuit. Multiple units may be connected to a single circuit up to the circuit rating. Wait for 90 seconds after power is connected for the first time to initiate water heater program and operation. The power consumption for ONSEN water heater: Maximum at 60W during normal operation 2W in standby mode Up to 140W during freeze protection function Warning! Do NOT use 3‐prong to 2‐prong adapters. Do NOT use power strips or multiple outlet adapters. Field wiring connections and electrical grounding must comply with local codes & AS/NZS 3000. Do NOT connect power before venting installation is complete. Before servicing the water heater, turn off the power at the mains by disconnecting the circuit breaker. Label all wires prior to disconnection. Figure19 on page 18 shows the electrical schematic diagram of the hot water heater. ... - Page 19 Fig g ure19 Page18 Version 1.0Aug 2018 ...
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Page 20: Remote Controlinstallation(For Certain Models Only)
Remote ControlInstallation(For Certain Models ONLY) Do NOT install remote control in the following locations: Outdoor Area which it may in contact with water Area exposed to heat Area exposed to steam Area exposed to oil Area exposed to direct sunlight Area where flammable products are stored or used Remote control should be installed out of children’s reach but in an easily accessible location, e.g. kitchen, laundry room, utility room. The maximum distance between water heater and a remote control is 30m, limited by the wire length provided. One water heater can connect up to 3 remote controls at a time. Remote control cables can be any Type T 18 AWG wire similar to a thermostat wire but not sensitive to polarity. Wiring MSUT NOT be exposed. Do NOT apply sealant to remote control cable. Do NOT use network cable, telephone ... - Page 21 Connect the cable to the remote control – see Figure21 Figure21 Remove the cover of the remote control – see Figure 22. Figure22 Fix the remote control to the wall by using suitable screws and wall anchors – see Figure 23. Figure 23 Page20 Version 1.0Aug 2018 ...
- Page 22 Put the cover back onto the remote control. The tabs on the cover should line up with the slots at the back of the remote control. Secure the cover to the remote control with one screw into the bottom tab – see Figure 24. Figure24 Warning! Do NOT attempt to connect the remote control or control wire while the water heater power is ON or the water heater may be damaged. Do NOT cut or strip the remote control cable while it is connected to water heater or while the water heater power is ON. Connecting the remote control to water heater (For Certain Models ONLY) ...
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Page 23: Installation Checklist
Installation Checklist □ Follow all installation instructions covered in this manual. □ Check the gas supply pressure to make sure it is within the range as stated in data label. □ Make sure there is adequate air for combustion and ventilation as described in this manual. □ Maintain proper clearances to combustibles and non‐combustibles as specified. □ Make sure venting system complies with local codes. □ Make sure the remote control cable (if any) is properly fastened to the water heater terminal. □ Make sure the remote control (if any) is connected in accordance with all wiring codes and regulations without any exposed connections. □ Contact the local gas company to ensure gas supply pressure is within limits. □ Do NOT block or restrict any outside air intake openings. □ Do NOT remove the water heater front cover unless absolutely necessary. This should only be done by qualified personnel. ... - Page 24 Test the Unit □ Purge air and foreign objects in the gas & water supply lines before connecting the supply lines to water heater. □ Turn the gas and water supplies ON. Test for leaks. □ Isolate the gas supply. Remove test point screw located at the gas inlet connection and attach pressure gauge. ...
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Page 25: About The Water Heater
About the Gas Water Heater ONSEN water heaters models ONHW26NG50 ONHW26LP50 ONHW26NG60 ONHW26LP60 ONHW30NG60 The water heaters use gas as fuel, and can supply continuous flow of hot water for shower, washing, kitchen etc. ONSEN gas hot water heaters MUST NOT be used for pool heating. ONSEN hot water heaters features Easy to operate – the operations are intelligent, automatic‐control with the advanced microcomputer chips controlling proportional valve, infinite speed, exhaust fan speed, and heavy load combustion device. Rainproof outdoor installation – the water heater itself is installed outdoors, with special hermitical ... - Page 26 Low start‐up water pressure – the minimum working water pressure can be as low as 0.02MPa with an approximate flowrate of 3Lpm which is ideal for regions with low water pressure. Artificial intelligent & power off memory function – when the water heater is restarted, the last temperature setting will be recalled. Multiple ...
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Page 27: Technical Specification
Technical Specifications Product :ONHW26NG50 Voltage : 240 Vac / 50Hz Installation : Outdoor ONLY Capacity : 26Lpm (25°C and above) , 14Lpm (45°C and above) Gas type ... - Page 28 Product :ONHW26LP50 Voltage : 240 Vac / 50Hz Installation : Outdoor ONLY Capacity : 26Lpm (25°C and above) , 14Lpm (45°C and above) Gas type ...
- Page 29 Product :ONHW26NG60 Voltage : 240 Vac / 50Hz Installation : Outdoor ONLY Capacity : 26Lpm (25°C and above) , 14Lpm (45°C and above) Gas type ...
- Page 30 Product :ONHW26LP60 Voltage : 240 Vac / 50Hz Installation : Outdoor ONLY Capacity : 26Lpm (25°C and above) , 14Lpm (45°C and above) Gas type ...
- Page 31 Product :ONHW30NG60 Voltage : 240 Vac / 50Hz Installation : Outdoor ONLY Capacity : 30Lpm (25°C and above) , 16Lpm (45°C and above) Gas type ...
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Page 32: Turn On The Water Heater
Turn ON the Hot Water Heater Warning! Before operating the hot water heater, make sure to read and follow the below instructions, all labels on the water heater, and the “Important Notes” contained in this user manual. ONSEN hot water heaters do not have a pilot. The hot water heater is equipped with ignition device which automatically lights up the burner. Do not try to light the burner by hand. Before operating, smell around the appliance to determine if there is a gas leak. Be sure to also note any smell coming from ground level because some gases are heavier than air and will settle on the ground. If you smell gas, Do NOT try to light any appliance. Do NOT touch any electrical switch. Do NOT use a phone within the vicinity of the heater. At a safe distance from the heater, immediately call your plumber or gas supplier for advice. Do NOT return to your home until being authorised to do so by the plumber or gas supplier. Do NOT use this appliance if the internals have been wet or submerged in water. Call a qualified service technician to inspect the appliance for damage. ... -
Page 33: Setting Water Temperature
Activating the water heater : Disconnect the water heater power plug. Turn the gas service valve clockwise to the OFF position. This valve is located on the outside of the water heater. Wait for 5 minutes to clear any gas. If gas can’t be smelt, proceed to the next step. If a gas smell can be detected, STOP and refer to instructions on page 31. Turn the gas service valve counter clockwise to the ON position. Reconnect and turn on power supply to the water heater. The water heater burner will automatically light up when there is a demand for hot water. Water Temperature (°C) 2nd Degree Burn 3rd Degree Burn No Irreversible Damage Full Thickness Injury 45 2 hours 3 hours 47 20 minutes 45 minutes 48 15 minutes 20 minutes 50 8 minutes 10 minutes 55 17 seconds 30 seconds 60 3 seconds 5 seconds Table 3 Figure31 ... -
Page 34: Onsen Remote Control (For Certain Models Only)
The water heater temperature range is from 37°C to 60°C. To adjust the water temperature, refer to the ONSEN remote control instructions on page 34. The water heater may not operate with insufficient water flow. If full flow at an outlet does not activate the hot ... - Page 35 4. With hot water flowing, the temperature of the hot water cannot be adjusted higher than 48°C. To adjust the temperature higher than 48°C, all hot water outlets must be shut off and press temperature adjustment button . Note: for ONHW26NG50 & ONHW26LP50, when the hot water heater is powered ON, the temperature setting will default to 50°C. For ONHW26NG60, ONHW26LP60 and ONHW30NG60, when the hot water heater is powered ON, the temperature setting will resume at the previous remote control setting. 5. A single ONSEN water heater is capable of connecting with a maximum of 3 remote control units installed at any one time. Controlling priority can be reassigned to any one of the remote controls. The installation is parallel connection regardless of polarity as shown in Figure 35. ...
- Page 36 6. If there is more than one remote control installed, the following priority switching operations apply : Turn off hot water delivery at all outlets. With power ON, in standby mode, and display OFF, press ON button of the remote control to assign it priority status. The priority indicator will illuminate and the remote control can now adjust water temperature. After priority has been assigned to a specific controller, the priority light on all other controllers will dim and temperature adjustment from these controllers is not possible. iii. With powered ON, in standby mode, and display ON, press any button of any remote control to assign it priority status. The priority indicator will illuminate and the remote control can now adjust water temperature. After priority has been assigned to a specific controller, the priority light on all other controllers will dim and temperature adjustment from these controllers is not possible. When the water heater is in operation and delivering hot water, the priority cannot be reassigned to other remote controls. Priority reassignment can only take place when there is no hot water delivery. ...
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Page 37: Cleaning And Maintenance
Cleaning and Maintenance Caution: Prior to cleaning or maintenance, always disconnect the power supply. Regular cleaning and maintenance will help to make sure the water heater is always in good condition & prolong the working‐life of the water heater. 1) Cleaning of Hot Water Heater Ensure the heater has not been in operation for at least 1 hour and the casing is not hot. Use a vacuum cleaner to clean around the water heater to remove any dust, dirt, and/or lint build up, particularly near the air intake or vent outlet – see Figure 34.Use a damp cloth to clean the hot water heater casing. Dry the surface afterwards.Never use gritty or abrasive sponges. Acidic materials like vinegar and citric juices etc can damage the most resistant surfaces. Figure 36 Figure 34 Check the air intake and vent outlet for blockage and / or debris. The air intake requires a minimum of 300mm clearance between the air intake opening and any obstruction – see Figure 37. ... - Page 38 Drain the wat er heater. Re fer to instruc ctions of drain ning the wate er heater – se ee Figure 39. Figure37 gure 39 Unscrew and remove the e strainer. Do o not use ex xcessive forc e while rem moving it to a avoid deform mation and/o or damage to the e strainer. Cle ean the strain ner under ru nning water. ...
- Page 39 Open all wate er outlets and d let the wate er flow until w water becom es cold, then n shut off the water outlet ts – see Figur re 42. Figure 42 Close the wat er supplyserv vice valve. Re emove the str rainer and us se a suitable c container to collect water r from straine er port and hot w water outlet – – see Figure 4 43. Figu ure 43 When fully dr ained a smal l amount of w water will stil l remain in th he water heat...
- Page 40 Figure 46 4) Regular Visual Check Check and keep the hot water heater installation area clean and free from flammable materials. Visually inspect the water heater for damage and / or denting. Check for abnormal noise during operation of water heater, e.g. hissing or banging noise. Check if there is any leakage of the water or gas lines. Contact a qualified plumber to check if any of the above mentioned are present. 5) Freeze Protection ONSEN water heaters come with freeze protection function. The heaters automatically prevent freezing inside the water heater to as low as ‐14°C. This freeze protection function only protects the internal components of the water heater. 6) Vacation and Extended Shutdown If the water heaters were to remain idle for an extended period of time, the power, gas, and water supply should be turned off. The water heater and piping should be drained if they might be subjected to freezing temperatures. After an extended shutdown, the water heater operation and controls should be checked by a qualified plumber. Page39 Version 1.0Aug 2018 ...
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Page 41: Troubleshooting
Troubleshooting Warning! For your own safety, do NOT try to repair the electrical wiring, gas and water piping, remote control, burners, vent connectors, or other safety devices. Always contact a qualified service technician if you have any queries. Problem Possible Causes Solution Hot water flow is low or no hot water 1. Hot water heater is not 1. Power ON the hot water unit. delivery. powered ON. 2. Water service valve not 2. Check the service valve and completely opened. ... - Page 42 3. Increase the water outlet flowrate. 4. Strainer is blocked. 4. Clean strainer. Figure 49 Fan continues to operate after water The post purge cycle is clearing Normal operation. outlet is off. flue gas. ONSEN water heater has a built‐in electronic diagnostic system. When an error occurs, the remote control will show the error code. Refer to the error codes found below and possible faults for further information. When an error code is shown, turn OFF all hot water outlets. Turn OFF the water heater by pressing Power ON/OFF on the remote control. Wait for about 5 minutes, then restart the water heater again by pressing Power ON/OFF on the remote control. Turn on a hot water outlet and recheck the display to determine if there is still an error. If error still exists, turn off the hot water outlet and water heater. Unplug the power supply, wait for 30 seconds and reconnect it. Restart the hot water heater and turn on a hot water outlet to check again. If there is still error shown in the display, take a note of the displayed error and turn OFF the water heater. Contact authorised service centre for servicing. ...
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Page 43: Replacement Parts
Replacement Parts Warning! Always contact a qualified plumber or repairer for any servicing and repairing job. Always purchase original parts from ONSEN by stating the model number and serial number, specify gas type (LPG or NG), part description and number of parts desired. ... - Page 44 12. Front cover 13. Power box 14. Ignition device For model:ONHW30NG60 Figure 51 1. Control board 2. Gas valve 3. Burner assembly 4. Blower motor 5. Gas manifold 6. Gas inlet connector R ¾ 7. Water valve 8. Water inlet connector R ¾ 9. Strainer 10. Hot water outlet connector R ¾ 11. Remote control terminal block 12.
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Page 45: Product Record
Product Record Customer Name :_____________________________________________________________________________ Mobile No. : _________________________________________________________________________________ Address : ____________________________________________________________________________________ Email : ______________________________________________________________________________________ Hot Water Heater Model Purchased : _____________________________________________________________ Unit Serial Number : ___________________________________________________________________________ Purchased Date & Installation Date : ______________________________________________________________ Purchase Order &Quantity : ____________________________________________________________________ Installation Location : □ Kitchen □ Bathroom □ Balcony ... -
Page 46: Maintenance Record
Maintenance Record Maintenance Error Description Repair Details Service House owner Date Personnel confirmation Signature ...
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