SERVICE HANDBOOK FOR STANDARD RESIDENTIAL FVIR GAS WATER HEATERSMODELS: G/LORT, G/LORS, G/LBRT, G/LBRS, G/LBCT, G/LBCS,G/LKRT, G/LKRS, G/LKCT, G/LA
10Burner/Manifold Door Assembly: The burner/manifold assembly consists of several components such as: main burner, burner oriﬁ ce, manifold tube, pil
11Energy Cut Off (ECO): A metal tube (Temperature Probe) mounted onto the back of the gas control valve/thermostat is immersed inside the tank water.
12Thermostat Operation: Standard residential water heaters use mechanical thermostats. With a mechanical thermostat, a dial setting of 120° F may shut
13BASIC INSTALLATION & OPERATIONTable 1:BTUH InputMinimum Square Feet with 8’ CeilingTypical Room with 8’ Ceiling30,000 188 9 x 2145,000 281 14 x
14BASIC INSTALLATION & OPERATIONAll Air from Inside the Building: When additional air is to be provided to the conﬁ ned area from additional room(
15BASIC INSTALLATION & OPERATIONVent Connectors:1. Type B, Double wall, U.L. Listed Vent Pipe.2. Single wall Vent Pipe.Maintain the manufacturer
16• The connector must be firmly attached and sealed to prevent it from falling out.• To aid in removing the connector, a thimble or slip joint may
17DRAINING AND FILLING THE WATER HEATERD raining the Water HeaterThe water heater should be drained if being shut down during freezing temperatures.
18CHECKING THE GAS SUPPLY PRESSUREChecking the Gas Supply PressureGas pressure checks are done with flowing gas using a gas pressure gauge capable of
19CHECKING FOR SUFFICIENT COMBUSTION AIR OR VENTING ISSUESFlue Products Vented to Ouside of BuildingDraft HoodDilution Air Air is drawn in for combust
20TESTING THE THERMOCOUPLE AND GAS CONTROL VALVE/THERMOSTATThermocouple Output TestThe following test will check the DC voltage generated by the therm
21Removing the Burner from the Manifold/Burner Assembly Natural Gas (Low Nox) & L.P. Gas Burn
22OTHER FITTINGSNOT SHOWN FOR CLARITYIGNITER WIRETHERMOCOUPLETWO PIECE WIRE CONNECTOR RETAINER CLIPPILOT TUBEPILOT BRACKETPILOT MANIFOLD TUBEMANIFOLD/
23MANIFOLD TUBETIPBRACKETSLOTCLOSE-UP INSIDE VIEW OFTHE COMBUSTION CHAMBER.Figure 27Removing and Replacing the Gas Control Valve/Thermostat
24ADJUSTING THE TEMPERATURE ON THE GAS CONTROL VALVE THERMOSTATWater temperature over 125°F (52°C) can cause servere burns instantly resulting in
25GAS WATER HEATER SIZING GUIDEUse the following information as a guide to approximate the correct size water heater for the residence:30 gallon size
26TECHNICAL BULLETINSWATER HAMMER ...
27BULLETIN 11WATER HAMMERGENERAL Water hammer is the destructive force, pounding noise and vibration in a piping system when water ﬂ owing through a p
28BULLETIN 13MINERAL BUILD-UPSYMPTOMS • Rumbling • Crackling • PoppingCAUSE With the increase in fuel costs and hot water consumption, deliming ha
29BULLETIN 14ALUMINUM HYDROXIDESYMPTOMS “Crackling”, “gurgling”, or “popping” noises from new water heaters (installed less than six months).CAUSE In
3Your safety and the safety of others is extremely important in the servicing of this water heater. Many safety-related messages and instructions have
30BULLETIN 15CONDENSATIONSYMPTOMS The water heater appears to be releasing water while the main burner is on or water is found surrounding the heater
31BULLETIN 21DISCOLORED WATERSYMPTOMS Rusty, brown, black, or yellow water appearing in the hot water.CAUSES Complaints of discolored water are common
32BULLETIN 22SMELLY WATERCAUSES The most common cause of “smelly water” is a non-toxic sulfate reducing bacteria, scientiﬁ cally termed Divibrio Sulfu
33BULLETIN 23CHLORINATION PROCEDURECAUSES The chlorination procedure is used to eliminate various bacteria that accumulate and grow in water heaters.
34BULLETIN 35NOT ENOUGH HOT WATER - GASCAUSES Complaints regarding an insufﬁ cient supply of hot water are typically the result of a water heater that
35BULLETIN 45THERMAL EXPANSIONSYMPTOMS • Effects are only noticeable after hot water use followed by periods of no water use.• Relief valve drips du
36THERMAL EXPANSIONTHE FIX The ideal ﬁ x involves the use of a pressure reducing valve if supply pressures are above 60 to 70 psi, and a properly size
37BULLETIN 52LEAKING TEMPERATURE AND PRESSURE RELIEF VALVESYMPTOMS • Water seeping around the relief valve tank connection• Leakage at the threaded
38BULLETIN 60INSULATION BLANKETSGENERAL The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank heaters.
39Draw efficiency is the quantity of hot water available to the consumer before the outlet water temperature decreases 25 degrees F. A 40 gallon wate
Fire or Explosion HarzardDo not store or use gasoline or other flammable vapors andliquids in the vicinity of this or any other appliance. Avoid all i
40One pound of gas pressure is equal to 27.7 inches water column pressure Inches of Water Column X .036091 = PSI Inches of Water Column
44FOR ASSISTANCE, CONTACT RELIANCE WATER HEATERS RESIDENTIAL TECHNICAL ASSISTANCE 1-800-365-4054 OR WWW.RELIANCEWATERHEATERS.COM.
PROBLEM POSSIBLE CAUSE TEST / CORRECTIVE ACTION5TROUBLESHOOTING QUICK REFERENCENO HOT WATER:Insufﬁ cient Combustion Air or Venting Issues – combustion
PROBLEM POSSIBLE CAUSE TEST / CORRECTIVE ACTION6WATER LEAKAGE:Thermostat does not shut-off Check the Gas Control Valve/Thermostat as described on p. 2
7TABLE OF CONTENTSBASIC INSTALLATION ...
8Exhaust Vent toOuside of BuildingUnionUnionWater Shut-Off ValveWater Supply- Cold*Expansion Tank Pressurize to EqualSupply Water Pressure*(Relieve wa
9This portion of this handbook applies to the Operations and Servicing of Residential Gas, Tank Type, Water Heaters, which are vented atmospherically