Rinnai E75CN Electrical connections, Connecting incoming power, Connection terminal E-Series

Page 37

7Electrical connections

CAUTION

CAUTION

The electrical connections to the boiler must be made in accordance with all applicable local codes and the latest revision of the National Electrical Code, ANSI/NFPA-70. Installations should also conform with CSA C22.1 Canadian Electrical Code Part 1 if installed in Canada.

Devices such as, outdoor sensor, room thermostat or temperature control, temperature sensor or thermostat and an external pump are all connected to the internal connection terminal. The connection terminal is situated behind the Control Tower.

Connecting incoming power

Install a 120V main switch next to the boiler as service main switch of the boiler. Lead the cable through the back part of the boiler using a strain relief and lead the cable through the cable supports to the Control Tower.

Connect a power supply cable to the cable harness terminal strip that connects to both the power switch on the front of the Control Tower and the terminal strip with positions 1, 2, and 3 on the inside of the Control Tower.

The boiler must be electrically grounded in accordance with local codes, or in absence of local codes, with the National Electrical Code, ANSI/INFPA 70 and/or the CSA C22.1, Electrical Code.

RISK OF ELECTRIC SHOCK.

Once the main power supply is on then there is 120V on terminals 1 to 12 if the main switch next to the boiler is switched on.

-No changes may be made to the wiring of the boiler;

-All connections should be designed in accordance with the applicable regulations;

i NOTICE

The Rinnai room thermostat and controls must be connected to their allocated

 

connections. All other types or makes of room thermostats or controls which

 

are used must have a Volt free contact.

When using an on/off thermostat or control, it is possible that an anticipating resistance must be calibrated in order to prevent too high temperature fluctuations. As a standard rule this means mercury thermostats. This resistance wire is present in the Control Tower and must be connected to clamps 23 and 27. The anticipating resistance in the room thermostat has to be set at 0.11 A.

For more detailed questions regarding the components which are not supplied, the distributor should be contacted.

Connection terminal E-Series

120 V~

120 V~

 

120 V~

120 V~

 

8U352200

 

Cylinder connection

Outside

Bus

Room

External

24 V~

Power supply

External pump

Ext.controller

N

L

three-way valve

DHW

sensor

Controller

therm.

safety

100 mA

 

 

N

L

 

CH

DHW N

sensor

 

 

On / Off

contact

 

 

4

5

6

7

10

11

 

 

 

 

 

 

 

 

main power supply

120 Volts for

external pump

 

120 Volts for external control

120 Volts

 

 

 

internal three-way valve motor and DHW sensor

ARV12 outdoor sensor

Bus room thermostat

On/off thermostat or control (Volt free)

External safety contact

24 Volts maximum 100 mA

! CAUTION

CAUTION

Make sure that the power consumption of each of the terminals

 

4-5-6, 7-8-9 and10-11 does not exceed 230W or 2 Amp.

 

 

Connection terminal

figure 19

Installation & Servicing Instructions Rinnai E-Series

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Contents Instructions Subject to technical changes Contents of instructionsUpdating of documentation Content Symbol definitions Safety and general instructionsDesignated use Hazard definitionsWhat to do if YOU Smell GAS Following instructions must be followedTools, materials and additional equipment Follow these instructions for the space heating waterDisposal Regulations and guidelines Room sealed boiler Description of the boilerCondensing ModulatingScope of delivery Packaging and transportationTransportation 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 airLouvers and Grills Confined SpaceLocation 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 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 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 ErrorsBlocks External safety contact is activeBlock 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 supplyError 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 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 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 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 resultsDHW power for the boiler is set too low Temperature drop of the DHWFlow reducing valve 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.
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