A.O. Smith 104 Series, Инструкция по эксплуатации

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It is re F ommended that the water heater storage tank be drained
and À ushed every 6 months to redu F e sediment buildup The
water heater should be drained if being shut down during freezing
temperatures See Features And Components in this manual for
the lo F ation of the water heater F omponents des F ribed below
TO DRAIN THE WATER HEATER STORAGE TANK:
1 Turn off the ele F tri F al supply to the water heater
2 Turn off the gas supply at the Main Gas Shutoff Valve if the
water heater is going to be shut down for an extended period
3 Ensure the F old water inlet valve is open
4 Open a nearby hot water fau F et and let the water run until the
water is no longer hot
5 Close the F old water inlet valve to the water heater
6 Conne F t a hose to the water heater drain valve and terminate
it to an adequate drain
7 Open the water heater drain valve and allow all the water to
drain from the storage tank
8 Close the water heater drain valve when all water in the
storage tank has drained
9 Close the hot water fau F et opened in Step 4
10 If the water heater is going to be shut down for an extended
period, the drain valve should be left open
TO FLUSH THE WATER HEATER STORAGE TANK:
1 Turn off the ele F tri F al supply to the water heater
2 Ensure the F old water inlet valve is open
3 Open a nearby hot water fau F et and let the water run until the
water is no longer hot Then F lose the hot water fau F et
4 Conne F t a hose to the drain valve and terminate it to an
adequate drain
5 Ensure the drain hose is se F ured before and during the entire
À ushing pro F edure Flushing is performed with system water
pressure applied to the water heater
6 Open the water heater drain valve to À ush the storage tank
7 Flush the water heater storage tank to remove sediment and
allow the water to À ow until it runs F lean
8 Close the water heater drain valve when À ushing is F ompleted
9 Remove the drain hose
10 Fill the water heater - see Filling The Water Heater in this manual
11 Turn on ele F tri F al supply to pla F e water heater ba F k in operation
12 Allow the water heater to F omplete several heating F y F les to
ensure it is operating properly
RECOMMENDED PROCEDURE FOR PERIODIC
REMOVAL OF LIME DEPOSITS FROM TANK TYPE
COMMERCIAL WATER HEATERS
The amount of F al F ium F arbonate (lime) released from water is
in dire F t proportion to water temperature and usage, see F hart
The higher the water temperature or water usage, the more lime
deposits are dropped out of the water This is the lime s F ale whi F h
forms in pipes, heaters and on F ooking utensils
Lime a FF umulation not only redu F es the life of equipment but also
redu F es ef ¿F ien F y of the heater and in F reases fuel F onsumption
The usage of water softening equipment greatly redu F es the
hardness of the water However, this equipment does not always
remove all of the hardness (lime) For this reason it is re F ommended
that a regular s F hedule for deliming be maintained
The time between F leaning will vary from weeks to months
depending upon water F onditions and usage
The depth of lime buildup should be measured periodi F ally Heaters
equipped with F leanouts will have about 2" of lime buildup when
the level of lime has rea F hed the bottom of the F leanout opening A
s F hedule for deliming should then be set up,based on the amount
of time it would take for a 1" buildup of lime It is re F ommended that
the water heater initially be inspe F ted after 6 months
Example 1:
Initial inspe F tion after 6 months shows 1/2" of lime a FF umulation
Therefore, the heater should be delimed on F e a year
Example 2:
Initial inspe F tion after 6 months shows 2" of lime a FF umulation
Therefore, the heater should be delimed every 3 months
Explosion Hazard
Temperature-Pressure Relief Valve
must comply with ANSI Z21.22-
CSA 4.4 and ASME code.
Properly sized temperature-
pressure relief valve must be
installed in opening provided.
Can result in overheating and
excessive tank pressure.
Can cause serious injury or death.
ANODE ROD INSPECTION
Property Damage Hazard
Avoid water heater damage.
Inspection and replacement of anode rod required.
CAUTION
The anode rod is used to prote F t the tank from F orrosion Most
hot water tanks are equipped with an anode rod The submerged
rod sa F ri ¿F es itself to prote F t the tank Instead of F orroding tank,
water ions atta F k and eat away the anode rod This does not affe F t
water ¶ s taste or F olor The rod must be maintained to keep tank in
operating F ondition
Anode rod deterioration depends on water F ondu F tivity, not
ne F essarily water F ondition A F orroded or pitted anode rod indi F ates
high water F ondu F tivity and should be F he F ked and/or repla F ed more
often than an anode rod that appears to be inta F t Repla F ement
of a depleted anode rod F an extend the life of your water heater
Inspe F tion should be F ondu F ted by a quali ¿ ed te F hni F ian, and at a
minimum should be F he F ked annually after warranty period
Arti ¿F ially softened water is ex F eedingly F orrosive be F ause the
pro F ess substitutes sodium ions for magnesium and F al F ium ions
Use of a water softener may de F rease the life of water heater tank
The anode rod should be inspe F ted after a maximum of three
years and annually thereafter until F ondition of anode rod di F tates
its repla F ement Anode repla F ement is not F overed by warranty
NOTE arti ¿F ially softened water requires the anode rod to be
inspe F ted annually
DRAINING AND FLUSHING
Burn harzard.
Hot water discharge.
Keep hands clear of drain
valve discharge.