Rinnai E75CN, E110CP, E110CN Checking of the zero pressure control, Follow the next procedure

Page 53

12.4 Checking of the zero pressure control

i NOTICE

The zero pressure control is set at the factory. To measure this value you need

a difference pressure gauge with a range of +0,2 to -0,8 mbar (+0.08 to -0.001”

 

W.C.). Follow the next procedure:

-

-

-

-

-

-

-

-

-

-

Check point contamination figure 19

Press the MODE-button for 5 seconds.

The display will show COdE followed by an arbitrary number;

Select by means of the or the button the code C123;

Press the Store-button to confirm the code (code blinks 1 x);

Press the MODE-button until SERV is shown;

Press the STEP-button once until 1 is shown; alternately 1 and OFF will be shown.

Turn the upper measuring nipple on the gas valve open (fig. 19);

Connect the hose of the digital pressure gauge to the upper measuring nipple of the gas valve

Press the button until the minimum value is achieved;

The fan will function to its minimum revolutions (burner is active)

Measure the negative pressure.

Value should be 0 to -4Pa (0 to -0.04 mbar or 0 to -0.016" W.C.).

-

Adjustment zero pressure figure 20

If the zero pressure deviates too much:

-Remove black cover of the gas valve

-Remove cap with Torx screwdriver (fig. 20)

-Turn slightly the Torx screw behind the cap: Turn left is positive pressure deviation Turn right is negative pressure deviation

Rinnai E-Series

-Ending this procedure is done by pressing the Reset button.

-Proceed by checking the O2 value and correct it if necessary.

Installation & Servicing Instructions

53

Page 52 Page 54
Image 53
Page 52 Page 54
Contents Instructions Updating of documentation Contents of instructionsSubject to technical changes Content Symbol definitions Safety and general instructionsDesignated use Hazard definitionsWhat 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 Room sealed boiler Description of the boilerCondensing ModulatingTransportation 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 Low water cut off Safety valveExpansion tank With the boilerGas 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 supplyIntake / Exhaust Guidelines Vent system and air supply systemTo the boiler. See the list on Agency2a Examples vent and air supply systems concentric 2b Examples vent and air supply systems parallel Concentric system see Installation of the vent systemParallel system see Room Air System outdoor combustion airTerminal 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 Calculation of equivalent length vent system Combustion air and vent piping lengthsParallel system Total equivalent length Concentric 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 CombustionElectrical connections Connecting incoming powerAre used must have a Volt free contact Connection terminal E-SeriesElectrical diagram Electrical ladder diagram Good-state or standard read out Boiler controlsTechnical read out Operation indicationExplanation 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 handAltering adjustments AdjustmentsPress the Mode-button for 5 seconds Press the STORE-button to confirm the code code blinks1Parameter 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 casingPeriodic examination of venting systems and boiler MaintenanceInspection TechnicianVisual inspection for general signs of corrosion Checking and adjusting the gas/air ratioMeasuring the inlet gas pressure Carrying out a pressure test of the heating systemReplace 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 temperatureWiring and voltage are OK and error is repeated Fuse is working and the error is repeatedFan is not Spinning If necessary Replace the fanReplace 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 errorsHot water but no central heating Key of the central heating program is not switched onRS100 with outdoor Sensor Room sensor-On Three-port valve is not circulating to central heatingKey pump program Is on Hot and cold water Connection to the boiler Mixed up Insufficient quantity of hot waterIncorrect flow reducing Valve Absence Positive resultsFlow 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 Vent Products Parts list vent systemHeatfab Rinnai/ Ubbink103 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.
Top Page Image Contents