Rheem 22V40F1 Use And Care Manual Download Page 18

18

Operating the water heater.

Water Temperature Setting…

Maximum water temperatures occur just
after the burner has shut off. To determine
the water temperature, turn on a hot water
faucet and place a thermometer in the
water stream.

The wide reference mark near WARM 
on the rim of the temperature dial,
represents an approximate water
temperature of 120°F.

The long wide reference mark, to the left,
represents an approximate water
temperature of 130°F.

Each reference mark above or below these
points indicates an approximate change of
10°F.

To adjust the temperature, turn the
temperature dial to an initial setting of
120°F.

A condition known as “stacking” or
“layering” can occur when a series of
short and frequent hot water draws are
taken.

The hottest temperature water will be at
the top of the tank, closest to the outlet
pipe delivering hot water to the home.

Stacking can cause this top layer of water
to be hotter than the water toward the
bottom of the tank near the gas control
(thermostat).

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 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 pilot flame is extinguished
for any reason.

The gas control (thermostat) is also
equipped with a single use gas shut off
device that will shut off the gas supply to
the burner if the water heater exceeds
normal operating temperatures. Refer to
the (Before You Call For Service) section
of this manual, or contact your dealer.

WARNING: Should overheating occur or

the gas supply fail to shut off, turn off the
manual gas control valve to the appliance.

If the water heater has been subjected to
fire, flood or physical damage, turn off the
manual gas control (shut-off) valve, and
do not operate the water heater again until
it has been checked by qualified
personnel.

NOTICE: Replace any part of the gas
control system which has been under water.

!

Temperature dial

(Temperatures are approximate)

WA

R

M

V

A

C

A

T

IO

N

H

O

T

C

A

UT

ION

T

H

E R

ISK OF S

CA

LD

IN

J

U

R

Y

W

ATE R INCR

E

A

S

E

S

H O T T

E

R

W A R N I N G

READ ALL INSTRUCTIONS
BEFORE

LIGHTING

130°F 

Gas cock knob

120°F

140°F 

150°F

160°F 

110°F 

100°F 

90°F 

80°F 

70°F 

60°F 

Red Button

Summary of Contents for 22V40F1

Page 1: ...r 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 Thi...

Page 2: ...model and serial numbers here You can find them 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...

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: ...r temperature for each mark on the Gas Control Thermostat Temperature Dial DANGER Hotter water increases the potential for Hot Water SCALDS D A N G E R HOT Water temperature over 125 F can cause sever...

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: ...RMATION READ ALL INSTRUCTIONS BEFORE USING WARNING For your safety the information in this manual must be followed to minimize the risk of fire or explosion electric shock or to prevent property damag...

Page 7: ...nd 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 water heater must be located so it is not subje...

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: ...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 contractor wa...

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: ...r LP gas Gas Supply The branch gas supply line to the water heater should be clean 1 2 black steel pipe or other approved gas piping material A ground joint union or ANSI design certified semi rigid o...

Page 12: ...nergy 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 un...

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: ...xisting heating unit or components of a heating system that have previously been used with a non drinking water system Toxic chemicals such as those used for boiler treatment may be present and will c...

Page 16: ...and all other labels on the water heater as well as the warnings printed in this manual Failure to do so can result in unsafe operation of the water heater resulting in property damage personal injur...

Page 17: ...more details The chart below may be used as a guide in determining the proper water temperature for your home Safety Precautions Do turn off manual gas shut off valve if water heater has been subject...

Page 18: ...r that hotter water increases the risk of scald injury Also always supervise young children or others who are incapacitated The gas control thermostat is constructed with a built in safety shut off de...

Page 19: ...ated 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 sugge...

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: ...vice technician Pilot burner tube pinched or The pilot burner should be cleaned repaired or clogged replaced by a qualified service technician Gas Cock Knob not See the Lighting The Water Heater secti...

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

Page 23: ...s vent connectors or other safety devices Refer repairs to qualified service personnel Draft hood Temperature and pressure relief valve Burner supply tube Flue baffle and hanger Anode rod Heat Trap He...

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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