Rheem 30 Gallon Use & Care Manual Download Page 12

12

Installing the water heater.

The water heater must be installed with the factory supplied draft hood in place.

Insulation Blankets

Venting

Vent connectors must be attached to the 
draft hood outlet to connect the water 
heater to the gas vent or chimney. The 
vent connectors must be the same size 
(diameter) as the draft hood or larger, 
never smaller. 

For proper venting in certain installations 
a larger vent connector size may be 
needed. Consult the Vent Tables in 
Appendix G of the latest version of the 
National Fuel Gas Code (ANSI standard 
Z223.1 or NFPA 54.)

Horizontal vent connectors must be 
pitched upward to the chimney at least 
1/4” per foot of length. Single wall vent 
connectors must be at least 6” from 
adjacent unprotected combustible surface. 
Vent joints must be securely fastened 
by sheet metal screws or other approved 
method.

Test for spillage at the draft hood relief 
opening after 5 minutes of main burner 
operation.  Use a flame of a match or 
candle or smoke.  The flame or smoke 
should be pulled into the draft hood’s 
relief opening(s).

Insulation blankets, available to the 
general public, for external use on gas 
water heaters are not necessary.  The 
purpose of an insulation blanket is to 
reduce the standby heat loss encountered 
with storage tank heaters.  This water 
heater meets or exceeds the 

N

ational

Appliance Energy Conservation Act 
standards with respect to insulation and 
standby loss requirements making an 
insulation blanket unnecessary. 

The manufacturer’s warranty does not 
cover any damage or defect caused by 
installation, attachment or use of 
any type of energy saving or other 
unapproved devices (other than those 
authorized by the manufacturer) into, onto 
or in conjunction with the water heater. 
The use of unauthorized 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 
unauthorized devices.

CAUTION: If local codes require the 

application of an external insulation 
blanket to this water heater, pay careful 
attention to the following so as not to 
restrict the proper function and 
operation of the water heater:

 

Do not cover the operating or warning 
labels attached to the water heater or 
attempt to relocate them on the exterior 
of insulation blanket.

z

Do not apply insulation to the top of the 

water heater. This will interfere with the 
safe operation of the draft hood.

z

Do not cover the burner access door, 
jacket door, gas control (thermost at)/gas 
valve or pressure and temperature relief 
valve.

z

Do not apply insulation to the bottom 
of the water heater or the area where 
the combustion air inlet openings are 
located. This area must be unobstructed 
so as not to restrict combustion air flow 
to the burner.

z

Inspect the insulation blanket frequently 
making certain it has not sagged and is 
restricting the air flow to the combustion 
air inlet openings (perforation holes) 
located around the lower perimeter of 
the water heater jacket. This could result 
in an unsafe operating condition.

DANGER: Failure to 

install the draft hood and 
properly vent the water 
heater to the outdoors as 
outlined in the Venting 
section of this manual will 
result in unsafe operation of 
the water heater causing 
bodily injury, explosion, 
fire or death. To avoid the 
risk of fire, explosion, or 
asphyxiation from carbon 
monoxide, NEVER operate 
the water heater unless it is 
properly vented and has 
adequate air supply for 
proper operation as 
outlined in the Venting 
section of this manual.

WARNING: If local codes 

require external application 
of insulation blanket kits 
the manufacturer’s 
instructions included with 
the kit must be carefully 
followed.

Summary of Contents for 30 Gallon

Page 1: ...the proper installation and adjustment of the water heater and two for the owner operator to explain the features operation safety precautions maintenance and troubleshooting of the water heater This...

Page 2: ...of your water heater You ll find many answers to common problems in the Troubleshooting Guide If you review the chart of Troubleshooting Tips first you may not need to call for service READ THIS MANU...

Page 3: ...nt system for proper installation at initial start up and at least annually thereafter Refer to the Care and Cleaning section of this manual for more information regarding vent system inspection DANGE...

Page 4: ...5 minutes 125 F 11 2 to 2 minutes 130 F About 30 seconds 135 F About 10 seconds 140 F Less than 5 seconds 145 F Less than 3 seconds 150 F About 11 2 seconds 155 F About 1 second Table courtesy of Shr...

Page 5: ...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 level Before attempting to light the water heater make sure to look...

Page 6: ...installation For residential water heaters of a capacity greater than 52 gallons consult the local building jurisdiction for acceptable bracing procedures Have the installer show you the location of t...

Page 7: ...ilot or main burner can ignite these vapors and create a shut down condition of the water heater which will not allow the water heater to ignite until examined by a Qualified Service Technician The wa...

Page 8: ...located as specified above and each must have a minimum net free area of not less than one square inch per 4000 Btuh of the total input rating of all the appliances in the enclosure If horizontal duc...

Page 9: ...reby relieving the over pressure condition and eliminating the repeated operation of the relief valve Other methods of controlling thermal expansion are also available Contact your installing contract...

Page 10: ...e end 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...

Page 11: ...er must be isolated from the gas piping system by closing the manual gas shut off valve during any pressure testing of the gas supply piping at pressures equal to or less than 3 8 psi 10 5 w c for nat...

Page 12: ...y 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 unauth...

Page 13: ...ter heater jacket DON T remove the Burner Access Door unless absolutely necessary This should only be done by a qualified service technician A new burner access door gasket must be installed on any bu...

Page 14: ...tion air inlet openings observed see page 7 Water heater completely filled with water Air purged from water heater and piping Water connections tight and free of leaks Gas line equipped with shut off...

Page 15: ...ng unit hot water supply line and cold water return line not supplied with water heater NOTE This check valve is incorporated in some heating units Refer to the installation instructions supplied with...

Page 16: ...ual Failure to do so can result in unsafe operation of the water heater resulting in property damage personal injury or death Should you have any problems reading or following the instructions in this...

Page 17: ...MMABLE To dissipate such gas and to reduce risk of injury it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected...

Page 18: ...t Therefore always remember to test the water temperature with your hand before use and remember that hotter water increases the risk of scald injury Also always supervise young children or others who...

Page 19: ...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...

Page 20: ...r cleaning remove the burner from the water heater A vacuum cleaner can be used on the burner and floor shield inside the water heater The burner can also be cleaned by scrubbing with mild detergent P...

Page 21: ...he water heater requires air for ventilation air supplied to combustion and ventilation See the Combustion and the water heater location Ventilation Air information in the Installing The Water Heater...

Page 22: ...ighting The Water Heater section of this manual The gas control thermostat z See the Water Temperature Setting of The Water may be set too low Heater section of this manual Leaking or open hot z Make...

Page 23: ...thermostat burners vent connectors or other safety devices Refer repairs to qualified service personnel Draft hood Flue baffle and hanger Anode rod Heat Trap Heat Trap Nipple Nipple Dip tube Dip tube...

Page 24: ...Drive East Montgomery Alabama 36109 1413 Phone 1 800 432 8373 When contacting the manufacturer the following information will be requested a Model and serial number of the water heater as shown on the...

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