Reliance Water Heaters 11-03 Operating cont’d, Check for Leaks, Water Heating Ignition Sequence

Page 22

Operating (cont’d)

WARNING

BEFORE OPERATING [PROPANE (L.P.) GAS WATER HEATERS]: Propane (L.P.) gas is heavier than air. Should there be a leak in the system, the gas will settle near the ground. Basements, crawl spaces, skirted areas under manufactured (mobile) homes (even when ventilated), closets and areas below ground level will serve as pock- ets for the accumulation of this gas. Before attempting to operate the water heater or turning a nearby electri- cal light switch, be absolutely sure there is no accumu- lated gas in the area. Search for odor of gas by sniffing at ground level in the vicinity of the appliance. If odor is detected, follow the steps indicated at “For Your Safety” on the cover page of this manual, then leave the premises.

Operating instructions are located on front of the water heater, above or to one side of the gas control valve. See page 23.

WARNING

AN ODORANT IS ADDED TO THE GAS USED BY

THIS WATER HEATER. FOR YOUR SAFETY

IF YOU SMELL GAS:

1.Do not try to light any appliance.

2.Do not touch any electrical switch; do not use any phone in your building.

3.Immediately call you gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

4.If you cannot reach your gas supplier, call the fire department.

CHECK FOR LEAKS

Be sure to check all your gas pipes for leaks before operat- ing your water heater. Use a soapy water solution, not a match or open flame. Check the factory gas fittings when the main burner is turned “ON”.

WATER HEATING IGNITION SEQUENCE

(Make sure gas and electric power are connected properly)

1.The ignition control module is powered and monitors the system, waiting for a call for heat from the thermostat.

2.The thermostat calls for heat by reading a resistance value within a given range directly proportional to water temperature.

3.The control module:

a)Checks the pressure switch for an open circuit.

b)Energizes the blower.

c)Checks the pressure switch for a closed circuit to prove draft.

d)Sends line voltage to the hot surface igniter with a 20-second warm up period.

e)Opens the gas valve and checks the sensing rod for flame.

4.The burner heats the water to the desired thermostat setting.

a)The resistance in the thermostat rises to the value selected by the temperature control knob.

b)The control module closes the gas valve and 5 seconds later, removes power from the blower.

5.Cycle is completed.

CONTROL SEQUENCE - HOT SURFACE DIRECT IGNITION

Pre-purge

5 sec.

HSI Warm-up

20 sec.

Ignition Activation Period

4 sec.

Flame Recognition Period

1sec.

Ignition Trial

4 sec.

Interpurge

5 sec.

Post-purge

5 sec.

Retries

2

Reset from Lockout

1 hr.

Flame Sensing (Nominal)

 

HSI Off/Run Mode

4.0 µ DC

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Contents Used by this Water Heater What to do if YOU Smell GASDischarge Pipe General SafetyMust not be plugged or blocked JURY, or Property Damage General Safety cont’dDEATH, Serious Bodily INJURY, or Property Damage Rious Bodily INJURY, or Property DamageTable of Contents Preparing for the New Installation IntroductionTypical Installation Some models are equipped with Circulating loop fittingsLocating the New Water Heater Facts to Consider About the LocationFacts to Consider About the Location cont’d Locating the New Water Heater cont’dCombustion Air and Exhaust Air for Ventilation for Appliances Located Confined Spaces Wire Fence18″ Installing the New Water Heater Water PipingInstalling the New Water Heater cont’d Temperature-Pressure Relief ValveWiring Filling the Water HeaterWiring Diagram VentingVenting Through AN Outside Wall Venting cont’dALL 40 and 50 Gallon 40,000 BTU/HR Models ALL 75 Gallon Models and 50 Gallon 65,000 BTU/HR ModelsVent piping can be installed as follows Installing the New Water Heater contdVenting System Example Installations for ALL Models Minimum vent length for all models is 18 inchesCementing PVC, ABS or Cpvc Pipe and Fittings PrecautionsVent Pipe Separation Venting contd Connecting Vent to BlowerTypical installation Venting Through a RoofGas Piping Venting Through a Roof CONT’DGAS Piping with ALL Black Iron Pipe to GAS Control GAS Piping with Flexible ConnectorSediment Trap Its hookup? Installation ChecklistBefore Operating the Water Heater Model Rating PlateOperation OperatingBefore the Water Heater will Operate ALL ModelsCheck for Leaks Make sure gas and electric power are connected properlyOperating cont’d Water Heating Ignition SequenceFor Your Safety Read Before Operating Temperature Regulation Temperature Indicators Temperature Adjustment ButtonsStart Up Conditions For Your InformationOperational Conditions For Your Information cont’d Operational Conditions cont’dVenting System Inspection Periodic MaintenanceBurner Cleaning Burner InspectionHousekeeping Periodic Maintenance cont’dTemperature-Pressure Relief Valve Operation Anode Rod InspectionService Drain Valve Washer ReplacementDraining Leakage Checkpoints Troubleshooting Thermostat and GAS Supply CheckTroubleshooting cont’d Systems CheckCondensation Not EnoughHOT Water ProtectionRepair Parts Part Part Number Description Repair Parts cont’dThis is a Repair Parts LIST, not a Packing List 40 Gal.†Repair Parts 50 Gal.† Page
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