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Explains safety alert symbols and their meanings for potential hazards.
Highlights critical safety precautions to prevent fire, explosion, or injury.
Details the skills and qualifications required for proper installation.
Lists components supplied with the water heater for installation.
Considerations for the surrounding environment to prevent corrosion and ensure proper operation.
Specifies required clearances for vent terminals in various installation scenarios.
Specifies required clearances for outdoor vent terminals and air inlets.
Guidance on avoiding specific locations for vent termination to prevent issues.
Clearances required for indoor models RU80i and RU98i to combustibles and non-combustibles.
Guidance on determining maximum vent length based on elbows and termination type.
A list of checks to ensure proper installation location and compliance.
List of manufacturers and their tested vent products with contact information.
Prohibits specific materials and methods for vent system installation.
Diagram and instructions for horizontal flue termination.
Diagram and instructions for vertical termination with Centrotherm venting.
Details on the adaptor for twin pipe PVC/CPVC venting systems.
Critical warning about proper venting for preventing injury or death from exhaust gases.
Table specifying approved materials for vent and air piping in North America.
Method for calculating equivalent vent length using a calculation sheet.
Tables for calculating vent lengths for natural gas units based on elbows.
Tables for calculating vent lengths for propane units based on elbows.
Specific instructions for installing the Ubbink adaptor with PVC/CPVC venting.
Instructions for applying lubricant to ensure proper sealing of fittings.
Illustrations of different adaptor installation configurations for venting and intake piping.
Describes three types of certified vent termination configurations.
Instructions for installing the mechanically fastened rain cap.
Diagrams showing acceptable venting clearances for IPEX CVK termination.
Step-by-step sequence for installing the vent system.
Steps for installing the IPEX Low Profile vent termination kit.
Guidelines for locating and terminating PVC/CPVC sidewall vents.
Guidelines for terminating PVC/CPVC roof vents, including U-vents.
Step-by-step instructions for cementing PVC/CPVC vent pipe joints.
Physical data and characteristics of the Ubbink adaptor.
List of approved vent termination components with their equivalent lengths.
A worksheet for calculating total equivalent vent length for PVC/CPVC systems.
Prohibits specific connections and materials for condensate drain lines.
Requirements for installing an approved pressure relief valve.
Detailed steps for installing isolation valves.
Legend for symbols used in the basic installation piping diagram.
Safety warnings and essential steps before working with gas supply.
Table to determine correct gas pipe size for natural gas based on length and capacity.
Ensures proper electrical grounding according to codes and appliance requirements.
Recommended placement for the temperature controller to ensure visibility and functionality.
Step-by-step guide for mounting the remote temperature controller.
Comprehensive checklist to ensure all installation steps and requirements are met.
Key technical specifications for RU80/RU98 models, including consumption, capacity, and electrical data.
Detailed dimensions of the water heater unit in both inches and millimeters.
Charts illustrating pressure loss and water flow rates at different temperature rises.
Schematic showing the electrical components and connections of the water heater.
Specifications for the recirculation pump, including voltage and amperage.
Describes the sequence of operations for recirculation modes (Economy and Comfort).
Key information for safe operation and warranty adherence.
Critical safety instructions to read before operating the unit.
Explanation of the MC-91-2 controller display and its buttons.
Procedure for setting the desired water temperature using the controller.
Table showing available temperature settings in Fahrenheit and Celsius.
How to adjust the default temperature without a controller using DIP switch 5.
Remedy for power interruption issues affecting water flow.
Checks for electrical shorts related to grounding.
Instructions for cleaning internal compartments, burners, and air passages.
Instructions for manually operating the pressure relief valve annually.
Step-by-step instructions for flushing the heat exchanger with vinegar.
Steps for manually draining water from the heater.
Specific requirements for side wall horizontally vented gas-fueled equipment in MA.
Item number for the gas control assembly.
Details on extending labor coverage for residential installations.
Overview of what the Rinnai limited warranty covers for materials and workmanship.
Instructions on how to contact authorized service providers and obtain warranty service.
General| Type | Tankless Water Heater |
|---|---|
| Fuel Type | Natural Gas |
| Flow Rate | 7.5 GPM |
| Dimensions | 14.5 x 10.2 x 24.5 inches |
| Weight | 46.3 lbs |
| Category | Residential |
| Gas Type | Natural Gas |
| Energy Factor | 0.82 |
| Ignition Type | Electronic |
| Heating Capacity | 199, 000 BTU/hour |
| Energy Efficiency | 0.82 |
| Maximum BTU Input | 199, 000 BTU/hour |
| Minimum BTU Input | 15, 000 BTU/h |
| Venting | Direct Vent |
| Warranty | 5 years on parts |
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