Do you have a question about the Rinnai RL75eN and is the answer not in the manual?
Explains safety alert symbols and hazard classifications.
Covers safe operating practices and appliance care to prevent hazards.
Details built-in safety mechanisms like overheat and flame failure protection.
Outlines functions and availability of various temperature controller models.
Step-by-step guide for adjusting water temperature using the controller.
Provides available temperature ranges for different models and settings.
Explains how to set temperature without a controller using dip switches.
Instructions for adjusting voice prompt volume on specific controllers.
Guide to set desired water volume for bath filling function.
Procedure to enable or disable controller beep sounds.
Instructions for setting the time on the temperature controller.
Steps for cleaning internal components and the exterior of the appliance.
Guidelines for checking burner flame pattern for satisfactory operation.
Common problems and their potential solutions for troubleshooting.
How to retrieve error codes and operating data from the controller.
Information on water quality parameters and their maximum allowable levels.
Key guidelines and warnings for proper appliance installation.
Required minimum clearances around the appliance for safe operation.
Instructions for securely mounting the water heater to a wall.
Requirements for proper electrical grounding and power supply connection.
General instructions for safe and compliant gas supply line installation.
Example calculation for sizing gas piping based on BTU load and pipe length.
Details on water inlet/outlet connections and required valves.
Installation of isolation and pressure relief valves for system isolation and safety.
Features and recommendations for preventing freezing damage to the unit and piping.
Step-by-step instructions for manually draining the water heater for storage or freeze protection.
Method to prevent freezing by running a minimal water flow.
Important considerations for connecting multiple water heaters.
Procedure for setting dip switches based on installation altitude.
Recommended placement guidelines for temperature controllers.
Options for connecting multiple controllers to a single water heater.
Specifications for temperature controller wiring cable length and gauge.
Step-by-step guide for physically mounting the temperature controller.
Critical safety precautions and warnings before initial appliance operation.
Detailed steps for starting and operating the water heater.
Procedure for safely shutting off the gas supply to the unit.
Graph showing pressure loss versus water flow rate for different models.
Chart illustrating water flow capacity based on temperature rise.
Recommendations for setting temperatures for domestic hot water and space heating.
Guidelines on pump selection and sizing for circulation systems.
Fields for recording purchase and installation details for warranty.
Details on what the warranty covers and its duration.
Explains Rinnai's actions for warranty repairs or replacements.
Information on how to contact for warranty service and proof of purchase.
List of conditions and situations excluded from warranty coverage.
General installation requirements mandated by state regulations.
Specific requirements for Massachusetts, including CO detectors and signage.
Explains safety alert symbols and hazard classifications.
Covers safe operating practices and appliance care to prevent hazards.
Details built-in safety mechanisms like overheat and flame failure protection.
Outlines functions and availability of various temperature controller models.
Step-by-step guide for adjusting water temperature using the controller.
Provides available temperature ranges for different models and settings.
Explains how to set temperature without a controller using dip switches.
Instructions for adjusting voice prompt volume on specific controllers.
Guide to set desired water volume for bath filling function.
Procedure to enable or disable controller beep sounds.
Instructions for setting the time on the temperature controller.
Steps for cleaning internal components and the exterior of the appliance.
Guidelines for checking burner flame pattern for satisfactory operation.
Common problems and their potential solutions for troubleshooting.
How to retrieve error codes and operating data from the controller.
Information on water quality parameters and their maximum allowable levels.
Key guidelines and warnings for proper appliance installation.
Required minimum clearances around the appliance for safe operation.
Instructions for securely mounting the water heater to a wall.
Requirements for proper electrical grounding and power supply connection.
General instructions for safe and compliant gas supply line installation.
Example calculation for sizing gas piping based on BTU load and pipe length.
Details on water inlet/outlet connections and required valves.
Installation of isolation and pressure relief valves for system isolation and safety.
Features and recommendations for preventing freezing damage to the unit and piping.
Step-by-step instructions for manually draining the water heater for storage or freeze protection.
Method to prevent freezing by running a minimal water flow.
Important considerations for connecting multiple water heaters.
Procedure for setting dip switches based on installation altitude.
Recommended placement guidelines for temperature controllers.
Options for connecting multiple controllers to a single water heater.
Specifications for temperature controller wiring cable length and gauge.
Step-by-step guide for physically mounting the temperature controller.
Critical safety precautions and warnings before initial appliance operation.
Detailed steps for starting and operating the water heater.
Procedure for safely shutting off the gas supply to the unit.
Graph showing pressure loss versus water flow rate for different models.
Chart illustrating water flow capacity based on temperature rise.
Recommendations for setting temperatures for domestic hot water and space heating.
Guidelines on pump selection and sizing for circulation systems.
Fields for recording purchase and installation details for warranty.
Details on what the warranty covers and its duration.
Explains Rinnai's actions for warranty repairs or replacements.
Information on how to contact for warranty service and proof of purchase.
List of conditions and situations excluded from warranty coverage.
General installation requirements mandated by state regulations.
Specific requirements for Massachusetts, including CO detectors and signage.
| Type | Tankless |
|---|---|
| Fuel Type | Natural Gas |
| Maximum Flow Rate | 7.5 GPM |
| Temperature Range | 98°F - 140°F |
| Energy Factor | 0.82 |
| Ignition Type | Electronic Ignition |
| Venting | Direct Vent |
| Warranty | 12 years heat exchanger, 5 years parts |












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