[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-662364-105":59,"doc-detail-662364-en":129},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":122,"head_meta":124,"extra_data":126,"updated_unix":128},105,"en","rinnai-rl94i-tankless-hot-water-heater-gas-pressure-setting-troubleshooting","Rinnai RL94i Tankless Hot Water Heater - Gas Pressure Setting - Troubleshooting","","Installation commissioning procedure for a Rinnai RL94i tankless hot water heater, focused on setting and verifying gas pressure and combustion modes. Provides step-by-step checks such as confirming gas type via the data plate, attaching a manometer at the burner test point, running the unit at maximum flow, and calibrating Forced Low and Forced High using DIP switch positions. Includes safety warnings and troubleshooting notes detailing live test precautions and electrical resistance/voltage checks for gas valve solenoids, ignition, sensors, fan motor, and flame circuit verification.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/rinnai-rl94i-tankless-hot-water-heater-gas-pressure-setting-troubleshooting/662364/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/rinnai-rl94i-tankless-hot-water-heater-gas-pressure-setting-troubleshooting/662364.png","ImageObject",300,407,{"name":92,"@type":93},"mieayamfan","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-28",true,{"@type":101,"interactionType":102,"userInteractionCount":4},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"How do you calibrate Forced Low and Forced High combustion?","Question",{"text":111,"@type":112},"Flow water at the maximum available rate, move Dip SW1 switch 8 to ON, then hold the PC board switch A to calibrate Forced Low and switch back to ON. Repeat the sequence by moving Dip SW1 switch 8 OFF then ON and hold PC board switch B to calibrate Forced High.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"What gas inlet pressure readings are expected during commissioning?",{"text":116,"@type":112},"With the unit operating at maximum gas rate, the flowing inlet pressure should read 5”W.C. to -10.5”W.C. on natural gas and 8”W.C. to 13.5”W.C. on propane gas. Lower pressure indicates inadequate gas supply and noncompliance with specifications.",{"name":118,"@type":109,"acceptedAnswer":119},"What safety precautions are required before performing troubleshooting tests?",{"text":120,"@type":112},"Use extreme care to avoid contact with energized components inside the heater. Only trained and qualified service technicians should repair the unit, and the power source must be disconnected and the item isolated from the circuit before checking resistance readings.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},662364,1793213100,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":138,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":139,"faqs":140,"seo_title":141,"seo_description":67,"update_tm":128,"read_time":39},962090893677,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","User Manual of Product 1:  \nRinnai RL94IN Tankless Hot Water Heater, 9.8 GPM, Natural Gas, Indoor Installation  \n\n| | Gas Pressure Setting\u003Cbr>Ensure gas pressure check under Commissioning has been completed first! The regulator is electronically controlled and factory pre-set. Under normal circumstances it does not require adjustment during installation. Make adjustments only if the unit isnot operating correctly and all other possible causes for incorrect operation have been eliminated.\u003Cbr>1. Turn OFF the gas supply.\u003Cbr>2. Turn OFF the water supply.\u003Cbr>3. Remove the front panel (four screws) .\u003Cbr>4. Check the gas type using the data plate on the side of the unit. Confirm that the gas type switch is in the correct position (switch 1 of Dip SW2 is ON for natural gas, NG, and OFF for propane gas, LPG. ) Figure 1.\u003Cbr>5. Remove the screw and attach the manometer to the burner test point located on the gas control. Figure 2.\u003Cbr>6. Turn on the gas supply and the power supply.\u003Cbr>7. Flow water through the water heater at the maximum flow rate obtainable. (At least 3 gallons per minute is recommended. If there is not enough water flowing, the water heater could shut off or sustain damage due to overheating. )\u003Cbr>8. Move switch 8 of Dip SW1 to ON. Figure 3.\u003Cbr>9. Push the PC board switch A for one second. Figure 4.\u003Cbr>10. Calibrate “Forced Low” combustion using switch A (up) and switch B (down) .\u003Cbr>11. Move switch 8 of Dip SW1 to OFF and then back to ON. Figure 6.\u003Cbr>12. Push the PC board switch B for one second. Figure 4.\u003Cbr>13. Calibrate “Forced High” combustion using switch A (up) and switch B (down) .\u003Cbr>14. Move switch 8 of Dip SW1 to OFF. Figure 5.\u003Cbr>15. Close hot water taps.\u003Cbr>16. Turn off gas supply and 120 V power supply.\u003Cbr>17. Remove manometer and re-install allen head plug.\u003Cbr>18. Turn on the gas supply and 120 V power supply.\u003Cbr>19. Operate the unit and check for gas leaks.\u003Cbr>20. Install the front panel using four screws. |  |\n| --- | --- | --- |\n| Gas Pressure Setting\u003Cbr>NOTE: For additional installation and commissioning information refer to the Operation and Installation Manual.\u003Cbr>\u003Cbr> WARNING\u003Cbr>This appliance must be installed, serviced and removed by a trained\u003Cbr>and qualified person. During pressure testing of the consumer piping, ensure gas valve is turned off before unit is shut off. Failure to do so may result in serious injury to yourself or damage to the unit.\u003Cbr>APPLIANCE OPERATING PRESSURES Table 1\u003Cbr>Water\u003Cbr>Inlet Max. Gas Inlet Min./Max Forced Low Forced High NAT.G LPG NAT.G LPG NAT.G LPG RL94i Short flue length 150 PSI 5\"W.C.\u003Cbr>/10 .5\"W.C. 8\"W.C.\u003Cbr>/13 .5\"W.C. 0.61”W.C. 0.87”W.C. 3.0”W.C. 4.8”W.C. 0.61”W.C. 0.95”W.C. 2.3”W.C. 3. 7”W.C. Long flue length RL75i Short flue length 150 PSI 5\"W.C.\u003Cbr>/10 .5\"W.C. 8\"W.C.\u003Cbr>/13 .5\"W.C. 0.61”W.C. 0.87”W.C. 2.5”W.C. 3.9”W.C. 0.61”W.C. 0.95”W.C. 2.3”W.C. 3. 7”W.C. Long flue length\u003Cbr>Commissioning\u003Cbr>With all gas appliances in operation at maximum gas rate, the flowing inlet pressure at the incoming test point on the Rinnai water heater should read 5”W.C. -10.5”W.C. on natural gas and 8”W.C. -13.5 W.C. on propane gas. If the pressure is lower, the gas supply is inadequate and the unit will not operate to specification. Check the gas meter regulator and pipework for correct operation/sizing and correct as required. |  | \u003Cbr>Fig. 1 \u003Cbr>Fig. 2 \u003Cbr>Dip SW1\u003Cbr>Fig. 3 \u003Cbr>Fig. 4 \u003Cbr>Dip SW1\u003Cbr>Fig. 5 \u003Cbr>Dip SW1\u003Cbr>Fig. 6 |\n\n\n| Troubleshooting\u003Cbr>Important Safety Notes\u003Cbr>There are a number of (live) tests that are required when faultfinding this product. Extreme care should be used at all times to avoid contact with energized components inside the water heater. Only trained and qualified service technicians should attempt to repair this product. Before checking for resistance readings, disconnect the power source to the unit and isolate the item from the circuit (unplug it) .\u003Cbr>(SV1, SV2, SV3 , SV4 and POV) Gas valve and Modulating solenoids: (Set meter above 2K)\u003C","cbCaipnYiWuJxREx","https://ap.wps.com/l/cbCaipnYiWuJxREx","pdf",659737,"English","# Gas Pressure Setting\n## Commissioning\n# Troubleshooting\n## Important Safety Notes\n## Electrical Resistance and Voltage Checks","[{\"question\":\"How do you calibrate Forced Low and Forced High combustion?\",\"answer\":\"Flow water at the maximum available rate, move Dip SW1 switch 8 to ON, then hold the PC board switch A to calibrate Forced Low and switch back to ON. Repeat the sequence by moving Dip SW1 switch 8 OFF then ON and hold PC board switch B to calibrate Forced High.\"},{\"question\":\"What gas inlet pressure readings are expected during commissioning?\",\"answer\":\"With the unit operating at maximum gas rate, the flowing inlet pressure should read 5”W.C. to -10.5”W.C. on natural gas and 8”W.C. to 13.5”W.C. on propane gas. Lower pressure indicates inadequate gas supply and noncompliance with specifications.\"},{\"question\":\"What safety precautions are required before performing troubleshooting tests?\",\"answer\":\"Use extreme care to avoid contact with energized components inside the heater. Only trained and qualified service technicians should repair the unit, and the power source must be disconnected and the item isolated from the circuit before checking resistance readings.\"}]","Rinnai RL94i Tankless Hot Water Heater - Gas Pressure Setting - Troubleshooting | PDF"]