Rinnai E110CN, E110CP, E75CN, E75CP Room Air System indoor combustion air, Unconfined Space

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6.7.8 Room Air System (indoor combustion air)

When using indoor air, Rinnai strongly recommends the use of an indoor air filter, P/N 808000025.

This boiler requires adequate combustion air for ventilation and dilution of flue gases. Failure to provide adequate combustion air can result in unit failure, fire, explosion, serious bodily injury or death. Use the following methods to ensure adequate combustion air is available for correct and safe operation of this water heater.

Important: Combustion air must be free of corrosive chemicals. Do not provide combustion air from corrosive environments. Appliance failure due to corrosive air is not covered by warranty.

Combustion air must be free of acid forming chemical such as sulfur, fluorine and chlorine. These chemicals have been found to cause rapid damage and decay and can become toxic when used as combustion air in gas appliances. Such chemicals can be found in, but not limited to bleach, ammonia, cat litter, aerosol sprays, cleaning solvents, varnish, paint and air fresheners. Do not store these products or similar products in the vicinity of this water heater.

Unconfined Space:

An unconfined space is defined in NFPA #54 "as a space whose volume is not less than 50 cubic feet per 1000 Btu/hr (4.8 m3 per kW per hour) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space." If the “unconfined space” containing the appliance(s) is in a building with tight construction, outside air may still be required for proper operation. Outside air openings should be sized the same as for a confined space.

25FT

36FT

Installation & Servicing Instructions Rinnai E-Series

NOTE: 8FT CEILING

Unconfined Space

91,300 BTU Boiler

Unconfined space

25FT

NOTE: 8FT CEILING

Unconfined Space

200,000 BTU Boiler

36FT

figure 16

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Contents Instructions Subject to technical changes Contents of instructionsUpdating of documentation Content Designated use Safety and general instructionsSymbol definitions Hazard definitionsFollowing instructions must be followed What to do if YOU Smell GASTools, materials and additional equipment Follow these instructions for the space heating waterDisposal Regulations and guidelines Condensing Description of the boilerRoom sealed boiler ModulatingScope of delivery Packaging and transportationTransportation Installation Requirements for the installation roomFitting the boiler Dimensions E75CPConnection for combustion air supply and vent system Plumbing Kits Plumbing KitClearances from boiler Low Loss HeaderTechnical specifications CSAConnecting the boiler Central heating systemPlumbing Kit installation Compression fittingsInstallation & Servicing Instructions Rinnai E Expansion tank Safety valveLow water cut off With the boilerUnderfloor heating system plastic pipes Gas supply connectionGas connection with natural gas Gas pipingGas connection with propane gas Propane Supply Pressure RequirementsHot water supply Condensate drain pipeTo the boiler. See the list on Vent system and air supply systemIntake / Exhaust Guidelines Agency2a Examples vent and air supply systems concentric 2b Examples vent and air supply systems parallel Parallel system see Installation of the vent systemConcentric system see Room Air System outdoor combustion airRecommended vent/air intake terminal position Terminal positionsOccur to building products in the vicinity see Item Description Flue Material United StatesDimensioning of the exhaust and air intake duct Parallel system Combustion air and vent piping lengthsCalculation of equivalent length vent system Total equivalent length Concentric systemCalculation of compensation factor Boiler type E75 E110Room Air System indoor combustion air Unconfined SpaceLouvers and Grills Confined SpaceLocation Using Indoor Air For Combustion Using Outdoor Air For CombustionAre used must have a Volt free contact Connecting incoming powerElectrical connections Connection terminal E-SeriesElectrical diagram Electrical ladder diagram Technical read out Boiler controlsGood-state or standard read out Operation indicationExplanation of the function buttons Requirements of the water system Filling the heating system Freeze protectionWith water will have to be done Do not try to light the burner by hand Close main gas shut off valvePress the Mode-button for 5 seconds AdjustmentsAltering adjustments Press the STORE-button to confirm the code code blinks1Parameter Mode Outdoor reset Boiler and/or the installation Activating factory settings green button functionIsolating the boiler Commissioning Testing the Ignition Safety shut off device Testing for gas leaksStart up of the boiler Type of boiler Checking for contaminationBoiler needs maintanance Follow the next procedure Checking of the zero pressure controlChecking the O2 Installing the casing Measuring the ionization currentInspection MaintenancePeriodic examination of venting systems and boiler TechnicianMeasuring the inlet gas pressure Checking and adjusting the gas/air ratioVisual inspection for general signs of corrosion Carrying out a pressure test of the heating systemMaintenance activities Replace the gasket with a new oneCondensate trap Condensate trayWarranty Visual inspection of the flameParts of the boiler G KBlocks and Errors Error indication short referenceBlocks External safety contact is activeBlock Check flow through the installation Execute Parameter-Reset Check flow through the boiler and DHW fascilityCheck the sensors NTC 1 and NTC Check the main Power supply Check the boiler PumpError ErrorsRectify the short-circuit If necessary replace this part Check the 24 Volt Connection Disconnect voltage from the boiler and check the fuse F2Check Disconnected Components for short-circuiting Ionisation flow Ionisation cable or O2 setting Check the data in Error modeGas Reset the boiler Software error con Trol unitRectify the prece Ding error Error persists After reset Software error Control unit Software error Control unit Error Check the 24 Volt Connections Remove Voltage from the boiler and check fuse F2Check Disconnected parts for wear and tear Software error Control unit Temperature of 36 is displayed at position If necessary Replace the flow SensorCheck actual flow temperature Check flow sensor NTC1Check actual return temperature Check return Sensor NTCFan is not Spinning Fuse is working and the error is repeatedWiring and voltage are OK and error is repeated If necessary Replace the fanWiring is OK but the error is repeated Check the wiringReplace Sensor Shut down of return sensor T2 Contact for supply sensor T1 open Check the data Error mode Software error Control unit Other errors Central heating but no hot waterRS100 with outdoor Sensor Room sensor-On Key of the central heating program is not switched onHot water but no central heating Three-port valve is not circulating to central heatingKey pump program Is on Incorrect flow reducing Valve Insufficient quantity of hot waterHot and cold water Connection to the boiler Mixed up Absence Positive resultsDHW power for the boiler is set too low Temperature drop of the DHWFlow reducing valve Incorrect choice Installation Radiators do not get hot enough or warming up takes too longSpare parts Parts casing E-SeriesInstallation Manual E-SERIES DescriptionParts heat exchanger E-Series OSS1 OSS2 Clamp BAR TOP Part H.EX. Long Parts rear wall E-Series OSS1 OSS2 Parts pipes E-Series Description Parts electrical components E-Series 166 167101 Heatfab Parts list vent systemVent Products Rinnai/ UbbinkCommon venting guidelines 103104 105 106 107 800000012 9/2009

E75CP, E110CN, E75CN, E110CP specifications

Rinnai is a leading name in the heating industry, recognized for producing highly efficient and reliable tankless water heaters. Among their popular models are the Rinnai E75CN, E75CP, E110CP, and E110CN, each designed to cater to various household needs and preferences.

The Rinnai E75CN and E75CP are both remarkable for their compact size and impressive heating capabilities. The E75CN is a natural gas model, while the E75CP runs on propane. These units are designed to deliver a maximum flow rate of up to 7.5 gallons per minute, ensuring that multiple fixtures can be used simultaneously without a dip in performance.

Both models incorporate advanced temperature control technology, allowing users to set their desired water temperature with precision. The units feature a durable heat exchanger, constructed from high-grade stainless steel, which not only promotes longevity but also helps in preventing corrosion. Additionally, they come with built-in safety features, such as freeze protection and an overheat cut-off system, ensuring safe operation in varying conditions.

Moving on to the Rinnai E110CP and E110CN, these tankless water heaters are designed for larger households with higher hot water demands. The E110CP operates on propane, while the E110CN utilizes natural gas. These units deliver a maximum flow rate of up to 11 gallons per minute, making them ideal for simultaneous use in multiple bathrooms, kitchens, and laundry rooms.

The E110 models showcase Rinnai's Smart Technology, which optimizes energy consumption by adjusting the heating output based on the demand. This not only maximizes efficiency but also significantly reduces energy costs. They are equipped with digital controls and diagnostics, providing users with real-time information and the ability to troubleshoot easily if any issues arise.

In terms of installation, all four models are designed for versatility. They can be installed indoors or outdoors, giving homeowners flexibility based on their space and preference. With their compact design, these units require less space compared to traditional tank heaters, making them a suitable choice for modern homes.

Overall, Rinnai's E75CN, E75CP, E110PC, and E110CN models represent cutting-edge technology in tankless water heating. Their efficiency, safety features, and advanced technology make them an excellent choice for homeowners looking to upgrade their hot water systems. With Rinnai, users can enjoy the convenience of continuous hot water without sacrificing energy efficiency.
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