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Care and cleaning of the water heater.

Draining the Water Heater

CAUTION: Shut off gas to the water

heater at the gas control (thermostat)
gas cock or manual shut-off valve
before draining water.

DANGER: Before manually operating

the relief valve, make certain no one will
be exposed to the hot water released by
the valve.The water drained from the
tank may be hot enough to present a
scald hazard and should be directed to
a suitable drain to prevent injury or
damage.

In order to drain the water heater, turn
off the cold water supply. Open a hot
water faucet or lift the handle on the
relief valve to admit air to the tank. 

Attach a garden hose to the drain 
valve on the water heater and direct 
the stream of water to a drain. Open 
the valve.

Test for spillage at the draft hood relief
opening after 5 minutes of burner
operation.  Use a flame of a match or
candle or smoke.

Routine Preventative Maintenance

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

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

It is further recommended that a periodic
inspection of the gas control
(thermostat), burner, relief valve, internal
flue-way and venting system should be
made by service personnel qualified in gas
appliance repair.

At least once a year, lift and release the
lever handle on the temperature pressure
relief valve, located near the top 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 temperature and pressure
relief valve on the hot water heater
discharges periodically, this may be due to
thermal expansion in a closed water
system. Contact the water supplier or
your plumbing contractor on how to correct
this. Do not plug the relief valve outlet.

A water heater’s tank can act as a
settling basin for solids suspended in the

water.  It is therefore not uncommon for
hard water deposits to accumulate in the
bottom of the tank. If allowed to
accumulate, these solids can cover the gas
control (thermostat) sensors, causing the
sensors to operate erratically.  
Because accumulated solids can prevent the
gas control (thermostat) sensors from
accurately reading the water temperature,
the water at the fixture can be hotter than
the gas control (thermostat) dial setting. It
is suggested that a few quarts of water
be drained from the water heater’s tank
every month to clean the tank of these
deposits.

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.

The anode rod should be removed from the
water heater’s tank annually for
inspection and replaced when more than
6

of core wire is exposed at either end of

the rod. 

Make sure the cold water supply is turned
off before removing anode rod.

Housekeeping

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

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

DANGER: Combustible materials,

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

21

DANGER:

Before

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.

!

Safety Instructions

Installation Instructions

Operating Instructions

Care and Cleaning

T

roubleshooting Tips

Customer Service

Summary of Contents for GG75T06ASK

Page 1: ...al injury or death Model GG Series The purpose of this manual is twofold one to provide the installer with basic directions and recommendations for the proper installation and adjustment of the water...

Page 2: ...on a label on the appliance Staple sales slip or cancelled check here Proof of the original purchase date is needed to obtain service under the warranty IMPORTANT Fill out and return the Consumer Pro...

Page 3: ...HE WATER HEATER Gasoline as well as other flammable materials and liquids adhesives solvents etc and the vapors they produce are extremely dangerous Do not handle use or store gasoline or other flamma...

Page 4: ...ER Hotter water increases the Potential for Hot Water SCALDS D A N G E R HOT Water temperature over 125 F can cause severe burns instantly or death from scalds Children disabled and elderly are at hig...

Page 5: ...ed by federal state and or local laws rules regulations or customs LP gas must be used with great caution It is heavier than air and will collect first in lower areas making it hard to detect at nose...

Page 6: ...d to a qualified technician SAFETY PRECAUTIONS IMPORTANT SAFETY INFORMATION READ ALL INSTRUCTIONS BEFORE USING WARNING For your safety the information in this manual must be followed to minimize the r...

Page 7: ...its must comply with local codes The water heater must be located so it is not subject to physical damage for example by moving vehicles area flooding etc The water heater should be installed as close...

Page 8: ...mbustion and ventilation air supplied from outdoors or a freely ventilated attic or crawl space If air is supplied from outdoors directly or through vertical ducts there must be two openings located a...

Page 9: ...shion built in that compresses as the system pressure increases thereby relieving the over pressure condition and eliminating the repeated operation of the relief valve Other methods of controlling th...

Page 10: ...nd of the discharge line should not be threaded or concealed and should be protected from freezing No valve of any type restriction or reducer coupling should be installed in the discharge line To Fil...

Page 11: ...sting the Gas Supply System The water heater and its manual gas shut off valve must be disconnected from the gas supply piping system during any high pressure testing of that system at pressures in ex...

Page 12: ...energy saving devices may shorten the life of the water heater and may endanger life and property The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such...

Page 13: ...ments Heat Traps For increased energy efficiency some water heaters have been supplied with factory installed 3 4 NPT heat traps in the hot outlet line and cold water inlet line These heat traps may r...

Page 14: ...clear of the base of the heater Gas Supply Gas line equipped with shut off valve union and sediment trap Approved pipe joint compound used Soap and water solution used to check all connections and fi...

Page 15: ...l and take precedent over these instructions Tee fitting for vertical hot water supply lines Combination Potable and Space Heating Application Tee fitting must be installed as shown This insures that...

Page 16: ...s printed in this manual Failure to do so can result in unsafe operation of the water heater resulting in property damage bodily injury or death Should you have any problems reading or following the i...

Page 17: ...Failure to do so can result in unsafe operation of the water heater resulting in property damage bodily injury or death Should you have any problems reading or following the instructions in this manu...

Page 18: ...must be used open doors and windows for ventilation and all gas burning appliances in the vicinity should be shut off including their pilot lights to avoid vapors lighting NOTICE Flammable vapors may...

Page 19: ...sure to read and follow the warnings outlined in this manual and on the label on the water heater This label is located on the water heater near the gas control thermostat access panel Mixing valves...

Page 20: ...ays supervise young children or others who are incapacitated The gas control thermostat is constructed with a built in safety shut off device designed to shut off the gas supply to the burner if the p...

Page 21: ...he water It is therefore not uncommon for hard water deposits to accumulate in the bottom of the tank If allowed to accumulate these solids can cover the gas control thermostat sensors causing the sen...

Page 22: ...erformed only by qualified service personnel Figure A Main burner and pilot flame pattern Cast iron burner Figure B Main burner and pilot flame pattern Sheet metal burner Care and cleaning of the wate...

Page 23: ...ction of this the pilot correctly positioned manual Pilot orifice clogged The pilot should be cleaned or replaced by a qualified service technician Pilot tube pinched or The pilot should be cleaned re...

Page 24: ...t for the water heater to recover after an abnormal no hot water exceeded the capacity demand of the water heater Low gas pressure Check gas supply pressure and manifold pressure The pilot may be out...

Page 25: ...onnel Draft hood Drain valve shroud Burner supply tube Inner door Flue baffle hanger Anode rod Flue baffle collar Flue baffle Dip tube Dip tube gasket Pilot supply tube Thermocouple Piezo Ignitor Stri...

Page 26: ...ntacting the manufacturer the following information will be requested Model and serial number of the water heater as shown on the rating plate attached to the jacket of the heater Address where the wa...

Page 27: ...27 Rheem Manufacturing Company Warranty Registration Department P O Box 34070 Louisville KY 40232 4070 Please place in envelope and mail to Cut here Cut here...

Page 28: ...Mr Ms Mrs Miss Street Address City State Date Placed In Use Month Day Year Zip Code Apt Last Name Phone Number _ _ Complete and mail this Consumer Product Ownership Registration today After mailing th...

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