State Industries SSED 5 Water Heater User Manual


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MAINTENANCE
GENERAL
Water heater maintenance includes inspection and testing of the
       
cleaning, and removal of lime scale from the heating elements. Where
used, water heating system circulating pumps should be oiled.

accordance with the maintenance schedule, see Table 7. Tank sediment
removal and element lime scale removal must be performed when
needed as determined by periodic inspections.
TEMPERATURE-PRESSURE RELIEF VALVE OPERATION
DANGER
• Burn hazard.
• Hot water discharge.
• Keep clear of Temperature
Pressure Relief Valve
discharge outlet.

be checked to ensure that it is in operating condition every 6 months.
      


water discharge will not cause any property damage, as water may be
extremely hot. Use care when operating valve as valve may be hot.
To check the relief valve, lift the lever at the end of the Temperature-

seat properly and operate freely.
If after manually operating the valve, it fails to completely reset and
continues to release water, immediately close the cold water inlet to



on page 8 for instructions on replacement.
FIGURE 6.

discharges periodically, this may be due to thermal expansion.
Note: Excessive water pressure is the most common cause of

         
        

constant relief of thermal expansion.

a closed system that does not have a thermal expansion tank installed
is not covered under the limited warranty. Thermal expansion tanks
must be installed on all closed water systems.
DO NOT PLUG THE TEMPERATURE-PRESSURE RELIEF VALVE
OPENING. THIS CAN CAUSE PROPERTY DAMAGE, SERIOUS
INJURY OR DEATH.
Explosion Hazard
Temperature-Pressure Relief Valve
must comply with ANSI Z21.22-
CSA 4.4 and ASME code.
Properly sized Temperature-Relief
Valve must be installed in opening
provided.
Can result in overheating and
excessive tank pressure.
Can cause serious injury or death.
 Operation Interval Required
Tank
 Monthly

Removal

Elements

Removal


delimer and
element gaskets
TABLE 7. MAINTENANCE SCHEDULE.
FLUSHING

1. Turn off the electrical supply to the water heater at the breaker or
disconnect switch.
2. Turn off the pilot toggle switch on the water heater.
3. Ensure the cold water inlet valve is open.
4. Open a nearby hot water faucet and let the water run until the
water is no longer hot. Then close the hot water faucet.
 
to an adequate drain.
6. Ensure the drain hose is secured before and during the entire
       
pressure applied to the water heater.
 
 

 
10. Remove the drain hose.

in this manual on page 15.
12. Turn on the electrical supply to the water heater.
13. Turn on the pilot toggle switch on the water heater.
 
complete several heating cycles to ensure it is operating properly.
SEDIMENT REMOVAL
Water borne impurities consist of fine particles of soil and sand
which settle out and form a layer of sediment on the bottom of
the tank. In time, if not removed, the level of sediment might
reach the heating elements and cause their failure.
       
removal should be performed at the same time as follows.
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