Rinnai E75CP, E110CP, E75CN, E110CN user manual Confined Space, Louvers and Grills, Location

Page 35

Confined Space:

(Small Room, Closet, Alcove, Utility Room, Etc.)

A confined space is defined in the NFPA #54 as "a space whose volume is 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." A confined space must have two combustion air openings. Size the combustion air openings based on the BTU input for all gas utilization equipment in the space and the method by which combustion air is supplied:

Using indoor air for combustion Using outdoor air for combustion

Louvers and Grills

When sizing the permanent opening as illustrated in figure 17, consideration must be taken for the design of the louvers or grills to maintain the required free area required for all gas utilizing equipment in the space. If the free area of the louver or grill design is not available, assume wood louvers will have 25% free area and metal louvers or grills will have 75% free area. Under no circumstance should the louver, grill or screen have openings smaller than ¼”.

Example:

Wood: 10 in x 12 in x 0.25 = 30 in2

Metal: 10 in x 12 in x 0.75 = 90 in2

Location

To maintain proper circulation of combustion air two permanent openings (one up- per, one lower) must be positioned in confined spaces. The upper shall be within 12 inches of the confined space and the lower opening shall be within 12 inches of the bottom of the confined space. Openings must be positioned as to never be obstructed.

Combustion air provided to the appliance should not be taken from any area of the structure that may produce a negative pressure (i.e. exhaust fans, powered ventila- tion fans).

Gas Vent / Boiler Exhaust

OUTLET AIR DUCT

BOILER

 

12in. MAX

PERMANENT

BOILER

 

OPENINGS

 

 

12in. MAX

 

12"

 

(300mm)

Instructions Rinnai E-Series

INLET AIR DUCT

Louvers and grills

10"

(250mm)

figure 17

Installation & Servicing

35

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Contents Instructions Updating of documentation Contents of instructionsSubject to technical changes Content Hazard definitions Safety and general instructionsSymbol definitions Designated useWhat to do if YOU Smell GAS Following instructions must be followedDisposal Follow these instructions for the space heating waterTools, materials and additional equipment Regulations and guidelines Modulating Description of the boilerRoom sealed boiler CondensingTransportation Packaging and transportationScope of delivery Requirements for the installation room InstallationFitting the boiler E75CP DimensionsConnection for combustion air supply and vent system Plumbing Kit Plumbing KitsLow Loss Header Clearances from boilerCSA Technical specificationsCentral heating system Connecting the boilerCompression fittings Plumbing Kit installationInstallation & Servicing Instructions Rinnai E With the boiler Safety valveLow water cut off Expansion tankGas supply connection Underfloor heating system plastic pipesGas piping Gas connection with natural gasPropane Supply Pressure Requirements Gas connection with propane gasCondensate drain pipe Hot water supplyAgency Vent system and air supply systemIntake / Exhaust Guidelines To the boiler. See the list on2a Examples vent and air supply systems concentric 2b Examples vent and air supply systems parallel Room Air System outdoor combustion air Installation of the vent systemConcentric system see Parallel system seeTerminal positions Recommended vent/air intake terminal positionItem Description Flue Material United States Occur to building products in the vicinity seeDimensioning of the exhaust and air intake duct Total equivalent length Concentric system Combustion air and vent piping lengthsCalculation of equivalent length vent system Parallel systemBoiler type E75 E110 Calculation of compensation factorUnconfined Space Room Air System indoor combustion airLocation Confined SpaceLouvers and Grills Using Outdoor Air For Combustion Using Indoor Air For CombustionConnection terminal E-Series Connecting incoming powerElectrical connections Are used must have a Volt free contactElectrical diagram Electrical ladder diagram Operation indication Boiler controlsGood-state or standard read out Technical read outExplanation of the function buttons Requirements of the water system Freeze protection Filling the heating systemWith water will have to be done Close main gas shut off valve Do not try to light the burner by handPress the STORE-button to confirm the code code blinks1 AdjustmentsAltering adjustments Press the Mode-button for 5 secondsParameter Mode Outdoor reset Isolating the boiler Activating factory settings green button functionBoiler and/or the installation Commissioning Start up of the boiler Testing for gas leaksTesting the Ignition Safety shut off device Boiler needs maintanance Checking for contaminationType of boiler Checking of the zero pressure control Follow the next procedureChecking the O2 Measuring the ionization current Installing the casingTechnician MaintenancePeriodic examination of venting systems and boiler InspectionCarrying out a pressure test of the heating system Checking and adjusting the gas/air ratioVisual inspection for general signs of corrosion Measuring the inlet gas pressureReplace the gasket with a new one Maintenance activitiesCondensate tray Condensate trapVisual inspection of the flame WarrantyG K Parts of the boilerError indication short reference Blocks and ErrorsBlock External safety contact is activeBlocks Check flow through the installation Check flow through the boiler and DHW fascility Execute Parameter-ResetCheck the sensors NTC 1 and NTC Check the boiler Pump Check the main Power supplyRectify the short-circuit If necessary replace this part ErrorsError Check Disconnected Components for short-circuiting Disconnect voltage from the boiler and check the fuse F2Check the 24 Volt Connection Gas Check the data in Error modeIonisation flow Ionisation cable or O2 setting Rectify the prece Ding error Software error con Trol unitReset the boiler Error persists After reset Software error Control unit Software error Control unit Error Check Disconnected parts for wear and tear Remove Voltage from the boiler and check fuse F2Check the 24 Volt Connections Software error Control unit If necessary Replace the flow Sensor Temperature of 36 is displayed at positionCheck flow sensor NTC1 Check actual flow temperatureCheck return Sensor NTC Check actual return temperatureIf necessary Replace the fan Fuse is working and the error is repeatedWiring and voltage are OK and error is repeated Fan is not SpinningReplace Sensor Check the wiringWiring is OK but the error is repeated Shut down of return sensor T2 Contact for supply sensor T1 open Check the data Error mode Software error Control unit Central heating but no hot water Other errorsThree-port valve is not circulating to central heating Key of the central heating program is not switched onHot water but no central heating RS100 with outdoor Sensor Room sensor-OnKey pump program Is on Absence Positive results Insufficient quantity of hot waterHot and cold water Connection to the boiler Mixed up Incorrect flow reducing ValveFlow reducing valve Temperature drop of the DHWDHW power for the boiler is set too low Radiators do not get hot enough or warming up takes too long Incorrect choice InstallationParts casing E-Series Spare partsDescription Installation Manual E-SERIESParts 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 166 167 Parts electrical components E-Series101 Rinnai/ Ubbink Parts list vent systemVent Products Heatfab103 Common venting guidelines104 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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