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onsen ONHW26LP50, Installation And Operating Manual

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onsen ONHW26LP50 Installation And Operating Manual Download Page 45

Page

44 

 

Version 1.0Aug 2018 

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   

 

 

 

 

 

 

 

 

 

  □Others : __________________________________________________________ 

 
 
Installed by : _________________________________________________________________________________ 
 
 
Signature : __________________________________________________________________________________ 
 
 
 
Please fill in this card and keep it as a record. 
 
 
 
 
 

Summary of Contents for ONHW26LP50

Page 1: ...Ga Insta as W allatio Wa ONH ONH ONH ONH ONH on and ter HW26N HW26L HW26N HW26L HW30N d Ope r He NG50 LP50 NG60 LP60 NG60 eratin eate ng Ma er anual ...

Page 2: ...n 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 T...

Page 3: ...perly installed and terminated to outdoor Follow the manufacturer s instructions and all local regulations for clearances required from appliance to combustible constructions materials DO NOT MODIFY THIS APPLIANCE DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION DO NOT USE OR STORE FLAMMABLE MATERIALS IN OR NEAR THIS APPLIANCE This appliance MUST NOT be used as a do...

Page 4: ...01 The requirements are reproduced and shown on page 7 Figure 4 Note References to AS NZS 5601 are current at the time of printing but it is the installer s responsibility to ensure any subsequent changes in regulations are adhered with in full The appliance must be installed close to the most frequently used hot water outlet to minimise delay time for hot water delivery Alternatively it is possib...

Page 5: ...tally 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 The water heater should not be installed in a location where it can be adversely impacted by wind If the installation location is made of flammable material metallic heat insulation should be applie...

Page 6: ...ion 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 5...

Page 7: ...ter pipe size and layout should be in accordance with AS NZS 3500 4 All hot water pipe work should be insulated for optimal performance and energy efficiency Water heater and water lines should be protected from exposure to freezing temperatures see Figure 3 Model Number Gas Consumption MJ hr Water Supply Pressure kPa Weight kg Fittings Min Max Hot Cold Gas Condensate ONHW26NG50 ONHW26LP50 ONHW26N...

Page 8: ...ndow door non mechanical air inlet or any other opening into a building with the exception of sub floor ventilation Appliances up to 150MJ hr input 300 Appliances over 150MJ hr input up to 200MJ hr input 300 Appliances over 200MJ hr input up to 250MJ hr input 500 Appliances over to 250MJ hr input 1500 All fan assisted appliances in the direction of discharge 1500 10 From a mechanical air inlet inc...

Page 9: ...rances 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 Parts Quantity Remark Installation Operating manual 1 Keep it properly for ...

Page 10: ...Page9 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: ...perate 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 Position the upper mounting bracket and partially screw the expandable screw in place The clearance between the screw head ...

Page 12: ...n he wall with t h two mount orizontal clea n area and s cover is acce nd may resul two mounting ting screws as arance of 500 shape that c ptable Struc t in the heate g screws and s shown in Fig 0mm betwee could cover t cture only pa er failing to o d upon comp gure 8 en a building the whole ap artially obstru operate in win pleting this ta g structure an ppliance casi ucting the ap ndy condition ...

Page 13: ...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 operation failure Clean potable water free from corrosive chemicals sand grit and other contaminants Inlet water temperature above 1 C but not exceeding 48 C Do NOT reverse HOT and COLD...

Page 14: ...ould be the same nominal size as the water heater fittings on the unit Before connecting the service valve to water heater run water through the supply pipe to purge sand debris air caulking etc see 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 ...

Page 15: ...water heater it is recommended a drain valve is installed at the lowest point see 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 shal...

Page 16: ...ter heater It is recommended that a sediment trap be fitted at the lowest point in the gas supply line see 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 Figure ...

Page 17: ...his water heater is based on sea level operation At higher elevations the actual input rate may be lower than the value listed in product data label 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...

Page 18: ...tion 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 t...

Page 19: ...Version 1 0Aug 2018 Fig gure19 Page18 ...

Page 20: ...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 cab...

Page 21: ...8 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: ... connected to water heater or while the water heater power is ON Connecting the remote control to water heater For Certain Models ONLY Instructions 1 Ensure that water heater power has been disconnected 2 Remove the plastic cover from remote control connection at the bottom of water heater Do NOT remove Front Panel There is no accessible remote control terminal inside the water heater 3 Connect th...

Page 23: ...OUTDOORS Protected from freezing temperatures Proper clearance from combustible material to be observed Sufficient fresh air supply for proper operation of water heater Air supply is free from corrosive elements and flammable vapours Sufficient room to service the water heater Combustible materials are not to be kept near the heater and vent Water heater is properly secured to the wall Water Suppl...

Page 24: ...er the gas supply is inadequate and the appliances will not perform to specification If is the installer s responsibility to check the gas meter service regulator and pipe work for correct operation pipe size and rectify as required The gas regulator in the hot water heater is electronically controlled and factory preset and under normal circumstances DOES NOT need adjustment during installation C...

Page 25: ...f control circuits safety units fan proportional valve etc if there is problem the water heater will stop working and an error code will be displayed on the remote control if fitted Intelligent oxygen supply safety protection to ensure a complete highly efficient combustion process is maintained the microcomputer will automatically detect if the oxygen content and air flow is sufficient Fan speed ...

Page 26: ...ure Artificial intelligent power off memory function when the water heater is restarted the last temperature setting will be recalled Multiple safety protections automatic error detector flame failure device dual gas valve safety device strong wind pressure protection incomplete combustion detection delay ignition cleaning system over heat protection anti frozen protection anti freezing models onl...

Page 27: ...onsumption 20 205 MJ hr Min Max Temp Setting 37 60 C Factory Preset Temp 50 C Efficiency 84 Energy Star Rating 6 Min Max Water Supply Pressure 0 02 1 0 MPa Ignition System Water controlled full automatic pulse discharge ignition Water Temp Control Intelligent automatic control Gas Valve Certified Temp 20 70 C Water Valve Certified Temp 0 80 C Control Board Certified Temp 20 65 C Combustion Fan Cas...

Page 28: ...205 MJ hr Min Max Temp Setting 37 60 C Factory Preset Temp 50 C Efficiency 84 Energy Star Rating 6 Min Max Water Supply Pressure 0 02 1 0 MPa Ignition System Water controlled full automatic pulse discharge ignition Water Temp Control Intelligent automatic control Gas Valve Certified Temp 20 70 C Water Valve Certified Temp 0 80 C Control Board Certified Temp 20 65 C Combustion Fan Case Certified Te...

Page 29: ...0 205 MJ hr Min Max Temp Setting 37 60 C Factory Preset Temp 60 C Efficiency 84 Energy Star Rating 6 Min Max Water Supply Pressure 0 02 1 0 MPa Ignition System Water controlled full automatic pulse discharge ignition Water Temp Control Intelligent automatic control Gas Valve Certified Temp 20 70 C Water Valve Certified Temp 0 80 C Control Board Certified Temp 20 65 C Combustion Fan Case Certified ...

Page 30: ...205 MJ hr Min Max Temp Setting 37 60 C Factory Preset Temp 60 C Efficiency 84 Energy Star Rating 6 Min Max Water Supply Pressure 0 02 1 0 MPa Ignition System Water controlled full automatic pulse discharge ignition Water Temp Control Intelligent automatic control Gas Valve Certified Temp 20 70 C Water Valve Certified Temp 0 80 C Control Board Certified Temp 20 65 C Combustion Fan Case Certified Te...

Page 31: ...0 235 MJ hr Min Max Temp Setting 37 60 C Factory Preset Temp 60 C Efficiency 84 Energy Star Rating 6 Min Max Water Supply Pressure 0 02 1 0 MPa Ignition System Water controlled full automatic pulse discharge ignition Water Temp Control Intelligent automatic control Gas Valve Certified Temp 20 70 C Water Valve Certified Temp 0 80 C Control Board Certified Temp 20 65 C Combustion Fan Case Certified ...

Page 32: ...ed Reduce water delivery flow if the flow exceeds the water heater specification to avoid a hot water shortage Increase water delivery flow if the temperature of the delivered water is higher than the set temperature setting this might due to higher water supply temperature ONSEN hot water heater will stop working if the hot water delivery volume is lower than 2 5Lpm After an installation or a gas...

Page 33: ...r heater burner will automatically light up when there is a demand for hot water Water Temperature C 2nd Degree Burn No Irreversible Damage 3rd Degree Burn 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 Setting Water Temperature Maximum water delivery temperature occurs while...

Page 34: ...er flow If full flow at an outlet does not activate the hot water heater increase the temperature setting of the water heater via a remote control ONSEN Remote Control For certain models ONLY Warning Do NOT try to disassemble the remote control All controls are sealed and calibrated for accurate control and operation No other manufacturer s controls are suitable for ONSEN water heaters Figure 46 F...

Page 35: ...e controllers priority switching 3 Adjust the desired water temperature by using temperature adjustment buttons Temperature settings range is from 37 C to 60 C with adjustments made in 1 degree increments 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 temperatu...

Page 36: ...riority light on all other controllers will dim and temperature adjustment from these controllers is not possible iv 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 v When the ON OFF button of the remote control with priority is pressed it will tur...

Page 37: ...t 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 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 ...

Page 38: ...N he power lea eater wer OFF wait ctions of drain o not use ex ner under ru NOT to over d and turn th t for 10 seco ning the wate xcessive forc nning water tighten it Tu he water heat onds and disc er heater se e while rem Use a soft br urn on the w ter on connect powe ee Figure 39 moving it to a rush to remo water supply b er supply Clo F Fig avoid deform ve sediment by opening t ose the gas s Fi...

Page 39: ...lt the froz n service rei er flow until w emove the str 43 water will stil aining water en water ON nstall hot wa water becom rainer and us l remain in th r can be froz NSEN water h ter line and s es cold then se a suitable c he water heat zen If this h heaters will no strainer see F Fi n shut off the container to ter happens allo ot work prop e Figure 44 Figure 42 gure 44 water outlet collect wat...

Page 40: ...e 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 w...

Page 41: ...er b Open the water service valve 6 Temperature setting of water heater is too low 6 Increase the water heater temperature setting 7 Water outlet mixing valve malfunction 7 Check and replace the mixing valve 8 Error code display on the remote control 8 Refer to Error Code section If required contact a qualified service plumber 9 Water heater built in strainer is clogged or dirty 9 Clean the strain...

Page 42: ...F 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 Resta...

Page 43: ...ways 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 For model ONHW26NG50 ONHW26LP50 ONHW26NG60 ONHW26LP60 1 Control board 2 Gas valve 3 Burner assembly 4 Blower motor 5 Gas manifold 6 Gas inlet connector R 7 Wat...

Page 44: ... ONHW30NG60 1 Control board 2 Gas valve 3 Burner assembly 4 Blower motor 5 Gas manifold 6 Gas inlet connector R 7 Water valve 8 Water inlet connector R 9 Strainer 10 Hot water outlet connector R 11 Remote control terminal block 12 Front cover 13 Power box 14 Ignition device Figure 51 ...

Page 45: ..._____________________________________ Unit Serial Number ___________________________________________________________________________ Purchased Date Installation Date ______________________________________________________________ Purchase Order Quantity ____________________________________________________________________ Installation Location Kitchen Bathroom Balcony Others ________________________...

Page 46: ...Page45 Version 1 0Aug 2018 Maintenance Record Maintenance Date Error Description Repair Details Service Personnel Signature House owner confirmation ...

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