Rinnai RHFE-308 FTR user manual Testing Unit, Fault Finding Procedure

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TESTING

Testing Unit

Purge air from gas line.

Refer to pipe sizing chart if in doubt about the size of the gas line.

Connection can easily be reached from the top, rear or the unit. Check for leaks using soapy water or leak detection spray after turning gas on.

Plug unit in and turn power on, (CAUTION: 230V AC inside unit.)

Turn thermostat to HIGH, turn control to ON. Unit should ignite within 10 seconds.

If unit does not ignite there may still be air in the gas line. Turn control OFF, then ON.

Check pressure, Regulator is factory set.

If pressure is incorrect, CHECK SUPPLY PRESSURE BEFORE ALTERING REGULATOR. The heater must be stopped before checking pressure.

Remove the 2 test point screws and connect the manometer hoses to the differential pressure test points on the modulating valve and burner manifold.

Turn the unit to the ON position using the On/Off button on the control panel and check pressure. If pressure is correct remove manometer and replace test point screw.

Leak test all gas connections.

Fault - Finding Procedure

If unable to get the unit to operate correctly, contact Rinnai UK.

Do not use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and to replace any part of the control system and any gas control that has gotten wet.

WARNING: Do not operate appliance with any panels removed, cracked or broken.

Installation and repair should be done by a qualified service person. The appliance should be inspected before use and at least annually by a qualified service person.

More frequent cleaning may be required due to excessive lint from carpeting, bedding material,etc.

It is imperative that control compartments, burners, and circulating air passageways of the appliance be kept clean. Ventilating system should be inspected and cleaned annually of all debris and spider webs.

Warning: DO NOT OPERATE APPLIANCE UNTIL PROPER INSTALLATION HAS BEEN COMPLETED.

The gas pressure check must be carried out with all other appliances on the same main operating at maximum capacity to ensure that there is sufficient gas pressure.

With all other appliances operating the pressure at the test point on the inlet to the gas valve should read 20 mbar for Natural Gas. For LPG (Propane) the pressure should be 37 mbar. If the pressure is lower, the gas supply is inadequate and the water heater will not operate to specification. Check gas meter, regulator and pipework for correct operation/sizing and rectify as required. Note that the gas regulator on the Infinity is electronically controlled and factory pre-set. Under normal circumstances it does not need adjustment during installation.

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Contents RHFE-308 FTR Contents Getting to Know Your NEW RHFE-308FTR LouvreRemote Control OFFControl Panel Layout On / OFFFeatures Economy Mode Filter IndicatorRemote Control Auto ComfortSafety Points Clean with vacuum cleaner, weekly Turning on Operating Your NEW RHFE-308FTRTo Open the Control Panel Turning OFFRoom Temperature Adjustment Child Lock Economy Timer 1 Timer 2 Override FAN Filter Vertical Louvre AdjustmentDo not remove filter when appliance is operating Humidifier TraySetting the Clock Programming the ON/OFF Timers Turn to Next page to Operate the TimersOperating the Timers SET and Forget OperationTime Elapsed from Ignition to Preset Temperature PRE-HEATOverride Function Using the Remote ControlTo Change Temperature To Turn on or OFFCaring for Your NEW RHFE-308FTR Do not USE SolventsPRE-SERVICE Check At IgnitionError Messages Code Displayed Fault RemedyInstallation Instructions Important Safety InstructionsSpecification Location This heater is not designed to be builtSnow Areas Standard Installation of Flue ManifoldFlue Sizes FIT Back Covers Sides onlyFlue Manifold Position Wall Mounting BracketsInstalling the Flue GeneralDimension Terminal Position Distance Positioning the Flue TerminalSleeve and Manifold Installation Method for Standard WallsCheck rubber seal is in place on terminal Exhaust Pipe & Locking Clamp Fitting UnitAIR Inlet Hose Forced Flue Heater Extension Kits Names and Numbers of PartsFlue Extension Kits Installing AN Extension KIT for the RHFE-308 FTRHOW to Install Air intake hose Hose joint To prevent water condensation Maximum extendable lengthMetres less 1m per bend to a max 3 bends Conversion Fig #2 Fig #3Connecting GAS and Electrical Services Electrical ConnectionFault Finding Procedure TestingTesting Unit GAS Pressure Setting Satisfactory Unsatisfactory Front View Instruct Customer on USE of Heater Fitting TOP Spacer and Wall ClipHeater is now secured to the wall Block Diagram Wiring Diagram RHFE-308FTRDimensions Flue Position Through Wall Specification RHFE-308 FTRPage Service Contact

RHFE-308 FTR specifications

The Rinnai RHFE-308 FTR is an advanced heating appliance designed to deliver efficient and comfortable warmth, especially in residential settings. It has become a popular choice for homeowners seeking reliable heating solutions that also emphasize energy efficiency and sustainability.

One of the standout features of the Rinnai RHFE-308 FTR is its innovative technology known as "Flue Gas Heat Recovery." This technology allows the heater to utilize the heat generated by combustion to enhance the overall efficiency of the unit. By capturing and repurposing flue gases, the RHFE-308 FTR can provide superior heating performance while minimizing energy waste, making it an environmentally friendly option.

The unit is equipped with a powerful burner system that generates impressive heat output while maintaining low emissions. This not only ensures effective heating but also complies with stringent environmental regulations, contributing to a cleaner atmosphere. Additionally, the Rinnai RHFE-308 FTR is designed to operate quietly, allowing homeowners to enjoy a warm and peaceful environment.

Ease of use is another appealing characteristic of the RHFE-308 FTR. It features a user-friendly control panel, which allows for precise temperature adjustments. Homeowners can set their desired comfort level with just a few simple clicks. This model also includes programmable timer options, enabling users to schedule heating times that align with their daily routines, further enhancing convenience and energy savings.

The compact and sleek design of the RHFE-308 FTR ensures that it can easily blend into various interior styles without looking out of place. It’s also lightweight, making installation straightforward for both professional technicians and savvy DIY enthusiasts. The unit’s construction emphasizes durability, featuring high-quality materials that ensure longevity and reliable performance over time.

Safety is a paramount consideration in the design of the Rinnai RHFE-308 FTR. It comes with multiple safety features, such as overheat protection and a child safety lock, providing peace of mind for families.

Overall, the Rinnai RHFE-308 FTR stands out as a versatile and efficient heating solution. With its advanced technology, user-friendly features, and emphasis on safety, it offers a comfortable and reliable heating experience for modern homes.
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