Page 2 - CONTENTS
Page 1 Version 1.0Aug 2018 CONTENTS Important Notes ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page 2 Installation Instructions ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Page ...
Page 3 - Important Notes; Not suitable for use in mobile homes.
Page 2 Version 1.0Aug 2018 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 mainte...
Page 4 - Installation Instructions; Local building, water, and gas fitting regulations; OUTDOOR
Page 3 Version 1.0Aug 2018 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 300...
Page 5 - The hot water heater is an outdoor unit, and; MUST NOT; be installed indoors.
Page 4 Version 1.0Aug 2018 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...
Page 6 - Do not install the unit at location subject to vibrations.
Page 5 Version 1.0Aug 2018 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...
Page 9 - Parts
Page 8 Version 1.0Aug 2018 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 o...
Page 10 - Figure 5
Page 9 Version 1.0Aug 2018 Typical Installation of Outdoor Hot Water Heater (No Venting Required) Note:ONSEN hot water heater is for outdoor installation ONLY Figure 5
Page 11 - Figure 6
Page 10 Version 1.0Aug 2018 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 ...
Page 12 - Figure
Slo H Afavd9 Version 1.0A Secure the to ower mounti Horizontal Ob AS/NZS 5601 acing the te vertically abodoes not com9. 3 ug 2018 p mounting b ng bracket to bstructions stipulates a rminal. Struc ve and below ply with this bracket to th o the wall wit minimum ho cture w...
Page 13 - Water Supply; MUST ONLY
Page 12 Version 1.0Aug 2018 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, minimu...
Page 15 - Local codes shall govern the piping used for water connections.
Page 14 Version 1.0Aug 2018 With the service valve closed, remove the water filter, clean it, and refit the filter – see 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 ...
Page 17 - Turn on the gas service valve.; Hot and Cold Supply Line Insulation
Page 16 Version 1.0Aug 2018 After the water heater is installed, the appliance and its gas connection, including factory connections, MUST be leak‐tested at normal operating pressure. Warning! NEVER use an open flame to test for gas leak! Turn on the gas service valve. Use ...
Page 20 - Remote ControlInstallation(For Certain Models ONLY)
Page 19 Version 1.0Aug 2018 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 sunli...
Page 21 - Connect the cable to the remote control – see Figure21
Page 20 Version 1.0Aug 2018 Connect the cable to the remote control – see Figure21 Remove the cover of the remote control – see Figure 22. Fix the remote control to the wall by using suitable screws and wall anchors – see Figure 23. Figure21 Figure22 Figure 23
Page 22 - Ensure that water heater power has been disconnected.
Page 21 Version 1.0Aug 2018 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. Warning! Do NOT at...
Page 23 - Power Connection
Page 22 Version 1.0Aug 2018 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 ma...
Page 24 - Test the Unit; Turn the gas and water supplies ON. Test for leaks.
Page 23 Version 1.0Aug 2018 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 ...
Page 25 - About the Gas Water Heater
Page 24 Version 1.0Aug 2018 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...
Page 27 - Technical Specifications
Page 26 Version 1.0Aug 2018 Technical Specifications Product : ONHW26NG50 Voltage : 240 Vac / 50Hz Installation : Outdoor ONLY Capacity : 26Lpm (25°C and above) , 14Lpm (45°C and above) Gas type : Natural Gas (NG) Remote ...
Page 32 - Turn ON the Hot Water Heater; Do NOT try to light any appliance.
Page 31 Version 1.0Aug 2018 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....
Page 33 - Setting Water Temperature
Page 32 Version 1.0Aug 2018 Activating the water heater : o Disconnect the water heater power plug. o 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 ...
Page 35 - Remote Control Operation; Press the power ON/OFF button
Page 34 Version 1.0Aug 2018 Remote Control Operation 1. Press the power ON/OFF button once, the digital display will light up and will automatically recall the previous setting for temperature output. 2. For water heater installations with more than one remote control installe...
Page 36 - Turn off hot water delivery at all outlets.
Page 35 Version 1.0Aug 2018 6. If there is more than one remote control installed, the following priority switching operations apply : i. Turn off hot water delivery at all outlets. ii. With power ON, in standby mode, and display OFF, press ON button of the remote control to assign it priority st...
Page 37 - Caution
Page 36 Version 1.0Aug 2018 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) Cle...
Page 38 - Fig
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Page 39 - Figu
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Page 40 - Regular Visual Check
Page 39 Version 1.0Aug 2018 Open the water service valve. Open all water outlets and let water run till air has been purged from water lines – see Figure 45. Plug in the power supply. Open the gas service valve. Restart the hot water heater – see Figure 46. 4) R...
Page 41 - Problem
Page 40 Version 1.0Aug 2018 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....
Page 43 - Replacement Parts
Page 42 Version 1.0Aug 2018 40 Fan circuit error 50 Water outlet over heating 51 Water inlet over high 60 Water outlet temperature circuit malfunction 70 Program error Note: if the displayed error is not listed above, immediately turn off the water heater can contact authoris...
Page 45 - Product Record; □ Kitchen
Page 44 Version 1.0Aug 2018 Product Record Customer Name :_____________________________________________________________________________ Mobile No. : _________________________________________________________________________________ Address : ___________________________________________________...
Page 46 - Error Description
Page 45 Version 1.0Aug 2018 Maintenance Record Maintenance Date Error Description Repair Details Service Personnel Signature House owner confirmation ...
