Reliance Water Heaters 184333-001, 606, 11-03 Installing the New Water Heater cont’d

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Installing the New Water Heater (cont’d)

Temperature-Pressure Relief Valve

WARNING

At the time of manufacture this water heater was provided with a combination temperature-pressure relief valve certi- fied by a nationally recognized testing laboratory that main- tains periodic inspection of production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, and the current edition of ANSI Z21.22 and the code requirements of ASME. If replaced, the valve must meet the requirements of local codes, but not less than a combination temperature and pressure relief valve certified as meeting the requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22 by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials.

The valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater (150 lbs./sq. in.) and a discharge capacity not less than the water heater input rate as shown on the model rating plate. (Electric heaters - watts divided by 1000 x 3412) equal BTU/Hr. rate.

Your local jurisdictional authority, while mandating the use of a temperature-pressure relief valve complying with ANSI Z21.22 and ASME, may require a valve model different from the one furnished with the water heater.

Compliance with such local requirements must be satisfied by the installer or end user of the water heater with a local- ly prescribed temperature-pressure relief valve installed in the designated opening in the water heater in place of the factory furnished valve.

For safe operation of the water heater, the relief valve must

WARNING

The temperature-pressure relief valve must be manually oper- ated at least once a year. Caution should be taken to ensure that (1) no one is in front of or around the outlet of the tem- perature-pressure relief valve discharge line, and (2) the water manually discharged will not cause any bodily injury or prop- erty damage because the water may be extremely hot.

If after manually operating the valve, it fails to completely reset and continues to release water, immediately close the cold water inlet to the water heater, follow the draining instruc- tions, and replace the temperature-pressure relief valve with a new one.

COLD

HOT

TEMPERATURE-

PRESSURE RELIEF

VALVE

TEMPERED

not be removed from it’s designated opening or plugged. The temperature-pressure relief valve must be installed directly into the fitting of the water heater designated for the relief valve. Position the valve downward and provide tubing so that any discharge will exit only within 6 inches above, or at any distance below the structural floor. Be cer- tain that no contact is made with any live electrical part. The discharge opening must not be blocked or reduced in size under any circumstances. Excessive length, over 30 feet, or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve.

WATER

OUTLET

DISCHARGE PIPE (Do not cap or plug)

PROVIDE A 6″ AIR

GAP BETWEEN THE

END OF THE

DISCHARGE PIPE

AND DRAIN

No valve or other obstruction is to be placed between the relief valve and the tank. Do not connect tubing directly to discharge drain unless a 6″ air gap is provided. To prevent bodily injury, hazard to life, or property damage, the relief valve must be allowed to discharge water in quantities should circumstances demand. If the discharge pipe is not connected to a drain or other suitable means, the water flow may cause property damage.

The discharge pipe:

—Must not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restric- tion.

—Must not be plugged or blocked.

—Must be of material listed for hot water distribution. —Must be installed so as to allow complete drainage of both

the temperature-pressure relief valve, and the discharge pipe. —Must terminate at an adequate drain.

—Must not have any valve between the relief valve and tank.

RELIEF VALVE OPENING

"THIS WATER HEATER IS PROVIDED WITH A COMBINATION TEMPERA- TURE-PRESSURE RELIEF VALVE. FOR SAFE OPERATION OF THE WATER HEATER, THE RELIEF VALVE(S) MUST NOT BE REMOVED FROM ITS DES- IGNATED POINT OF INSTALLATION OR PLUGGED."

YOUR LOCAL JURISDICTIONAL AUTHORITY, WHILE MANDATING THE USE OF A TEMPERATURE-PRESSURE RELIEF VALVE COMPLYING WITH ANSI Z21.22 AND ASME, MAY REQUIRE A VALVE MODEL DIFFERENT FROM THE ONE FURNISHED WITH THE WATER HEATER.

COMPLIANCE WITH SUCH LOCAL REQUIREMENTS MUST BE SATISFIED BY THE INSTALLER OR END USER OF THE WATER HEATER WITH LOCAL- LY PRESCRIBED TEMPERATURE-PRESSURE RELIEF VALVE INSTALLED IN THE DESIGNATED OPENING IN THE WATER HEATER.

SEE MANUAL HEADING—"TEMPERATURE-PRESSURE RELIEF VALVES" FOR INSTALLATION AND MAINTENANCE OF RELIEF VALVE. DISCHARGE LINE AND OTHER SAFETY PRECAUTIONS.

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Contents What to do if YOU Smell GAS Used by this Water HeaterMust not be plugged or blocked General SafetyDischarge Pipe Rious Bodily INJURY, or Property Damage General Safety cont’dDEATH, Serious Bodily INJURY, or Property Damage JURY, or Property DamageTable of Contents Introduction Preparing for the New InstallationSome models are equipped with Circulating loop fittings Typical InstallationFacts to Consider About the Location Locating the New Water HeaterCombustion Air and Exhaust Locating the New Water Heater cont’dFacts to Consider About the Location cont’d 18″ Wire FenceAir for Ventilation for Appliances Located Confined Spaces Water Piping Installing the New Water HeaterTemperature-Pressure Relief Valve Installing the New Water Heater cont’dFilling the Water Heater WiringVenting Wiring DiagramALL 75 Gallon Models and 50 Gallon 65,000 BTU/HR Models Venting cont’dALL 40 and 50 Gallon 40,000 BTU/HR Models Venting Through AN Outside WallMinimum vent length for all models is 18 inches Installing the New Water Heater contdVenting System Example Installations for ALL Models Vent piping can be installed as followsVent Pipe Separation PrecautionsCementing PVC, ABS or Cpvc Pipe and Fittings Venting Through a Roof Connecting Vent to BlowerTypical installation Venting contdVenting Through a Roof CONT’D Gas PipingSediment Trap GAS Piping with Flexible ConnectorGAS Piping with ALL Black Iron Pipe to GAS Control Model Rating Plate Installation ChecklistBefore Operating the Water Heater Its hookup?ALL Models OperatingBefore the Water Heater will Operate OperationWater Heating Ignition Sequence Make sure gas and electric power are connected properlyOperating cont’d Check for LeaksFor Your Safety Read Before Operating Temperature Indicators Temperature Adjustment Buttons Temperature RegulationOperational Conditions For Your InformationStart Up Conditions Operational Conditions cont’d For Your Information cont’dBurner Inspection Periodic MaintenanceBurner Cleaning Venting System InspectionAnode Rod Inspection Periodic Maintenance cont’dTemperature-Pressure Relief Valve Operation HousekeepingDraining Drain Valve Washer ReplacementService Leakage Checkpoints Thermostat and GAS Supply Check TroubleshootingSystems Check Troubleshooting cont’dProtection Not EnoughHOT Water CondensationRepair Parts 40 Gal.† Repair Parts cont’dThis is a Repair Parts LIST, not a Packing List Part Part Number DescriptionRepair Parts 50 Gal.† Page
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