Rheem RMTG-66DV, P), PH-25RDVS, RUTG-66DV, ECO-180DV Routine Preventative Maintenance, Housekeeping

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Care and cleaning of the water heater:

DANGER: Before

Routine Preventative Maintenance

manually operating the relief valve, make certain no one will be exposed to the danger of the hot water released by the valve. The water may be hot enough to create a scald hazard. The water should be released into a suitable drain to prevent injury or property damage.

!DANGER: Hotter water increases the potential for Hot Water Scalds.

DANGER: Failure to perform the recommended Routine Preventative Maintenance can harm the proper operation of this water heater, which can cause carbon monoxide dangers, excessive

hot water temperatures and other potentially hazardous conditions.

Properly maintained, your water heater will provide years of dependable trouble- free service..

It is recommended that a periodic inspection of the burner, relief valve, air intake filter, water filter and venting system should be made by service personnel qualified in gas appliance repair..

It is suggested that a routine preventive maintenance program be established and followed by the user..

At least once a year, lift and release the lever handle on the pressure relief valve, located in the hot outlet piping of the water heater, to make certain the valve operates freely.. Allow several gallons to flush through the discharge line to an open drain..

NOTICE: If the pressure relief valve on the hot water heater discharges periodically, this may be due to a problem in the water system. Contact the water supplier or your plumbing contractor on how to correct this. DO NOT plug the relief valve outlet.

Rapid closing of faucets or solenoid valves in automatic water using appliances can cause a banging noise heard in a water pipe.. Strategically located risers in the water pipe system or water hammer arresting devices can be used to minimize the problem..

Inspect the area around the water heater to ensure a safe operating environment.. Keep appliance area clear and free from combustible materials, gasoline and other flammable vapors and liquids..

Ensure the unit has not been damaged.. If damage or denting is present, contact a service personnel to verify proper operation..

Check for any abnormal sounds during normal operation of the water heater..

All piping should be checked for gas and/ or water leaks.. Refer to page 18 of this manual for instructions on leak testing..

The cold water supply filters should be cleaned monthly.. Refer to the “Housekeeping” section for further information..

DO NOT operate the water heater if you feel something is wrong with the unit..

DO NOT allow children to operate or otherwise handle the unit..

Notice: After inspection, maintenance and/or cleaning, ensure proper operation by turning on a hot water faucet..

!DANGER: Shock Hazard

Make sure the electrical power to the water heater is off to avoid potential serious injury or damage to components.

!DANGER: Combustible materials, such as clothing, cleaning materials or flammable liquids, etc., must not be placed against or next to the water heater.

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Housekeeping

Before performing Housekeeping tasks to this water heater, turn the unit off and disconnect the power supply..

Vacuum around the water heater for dust, dirt and lint on a regular basis..

Clean the water heater and remote control by using a damp soft cloth with a few drops of mild detergent and gently wiping the surfaces of the unit.. Wipe any remaining moisture with a dry soft cloth..

To ensure sufficient ventilation and combustion air supply, proper clearances must be maintained..

DO NOT block or obstruct the air intake opening of the water heater.

A minimum of 12” (30 cm) is required between this combustion air inlet opening and any obstruction.

The water filters should be cleaned on a monthly basis..

HOW TO CLEAN THE WATER FILTER:

Make sure the unit is OFF and the electrical power supply has been disconnected..

Turn the water supply OFF to the heater..

Drain heater. See “Draining The Water Heater” section on page 30.

Unscrew the water filter, and slide the filter out..

DO NOT tap the filter as it may deform and/or damage the filter..

To remove severe sediment and dirt, use a soft brush and wash with running water..

Return the filter to the water heater and screw in the filter..

Turn the electrical power supply and cold water supply ON to the water heater..

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Contents Tankless Water Heater For Your Records Install and properly vent the water heater…  & # 0 Natural gas and liquefied petroleum models For Installations in the State of California Installing the water heater Location of Water HeaterCorrosive Atmospheres Inspect ShipmentVenting Venting LengthsAppliance Vent Adapter Venting Through Closed SpacesDraining the Condensate Canadian Installations US Installations Horizontal Vent Terminal LocationIndoor Water Heater Additional ConsiderationsHorizontal Vent Installation Vertical Vent Installation Vertical Vent Termination LocationThermal Expansion Mounting the Water HeaterWater Supply Connections Cold and hot water connections Lines.Air Relief Valve Drain Valve Shown on Right without TubingLeak Testing Pressure Testing the Gas Supply SystemGas Supply High AltitudeRemote Control Installation Projections Power Cord Electrical ConnectionTypical Installation of Water Heater Venting Required Per Foot Downward PitchDuring Installation of this water heater… Hot and Cold Pipe Insulation InstallationInsulation Blankets Installation Check List Indoor Water Heater LocationLighting the water heater Water Temperature Setting Safety PrecautionsTime/Temperature Relationship in Scalds Water Temperature Setting… Routine Preventative Maintenance HousekeepingVenting System Inspection Burner InspectionVacation and Extended Shut-Down Condensate Trap InspectionDraining the Water Heater Freeze ProtectionBefore You Call For Service… Error Code Guide Replacement Parts 135F 57C DIP If YOU Need Service