HTP SSU-119CB - Manual (Page 10)

10
LP-32 Rev. 3.25.14
A water heating system can deliver scalding water. Be careful whenever using hot water to avoid scalding injury. Certain appliances,
such as dishwashers and automatic clothes washers, may require increased water temperature. By setting the thermostat to obtain the
increased water temperature required by these appliances, you may create the potential for scald injury.
To protect against injury, you should install a mixing valve in the water
system. This valve will reduce point of discharge temperature by mixing
cold and hot water in branch supply lines. Such valves are available from
your local plumbing supplier.
Table 1 details the relationship of water temperature and time with regard
to scald injury and may be used as a guide in determining the safest
water temperature for your applications.
PART 6 – MAINTENANCE AND TROUBLESHOOTING
Periodic maintenance should be performed by a qualified service technician to assure that all the equipment is operating safely and
efficiently. The owner should make necessary arrangements with a qualified heating contractor for periodic maintenance. Installer must
also inform the owner that the lack of proper care and maintenance of the water heating system may result in a hazardous condition.
INSPECTION ACTIVITIES DATE LAST COMPLETED
SYSTEM 1 st YEAR 2 nd YEAR 3 rd YEAR 4 th YEAR*
Piping Check system piping for any sign of leakage; make sure pipes
are properly supported.
Visual Do a full visual inspection of all system components.
Functional Test all functions of the system
Temperatures *Verify safe settings on Mixing Valve
ELECTRICAL
Smoke and CO detector
*Verify devices are installed and working properly. Change
batteries if necessary.
Circuit Breakers Check to see that the circuit breaker is clearly labeled.
Exercise circuit breaker.
Connections Check wire connections. Make sure they are tight.
RELIEF AND DRAIN VALVE
Relief Valve
Lift and release the relief valve on the storage tank. Make
certain that the valve operates properly by allowing several
gallons to flush through the discharge line. Replace if valve is
blocked or does not operate properly.
NOTE: DISCHARGED WATER MAY PRESENT A SCALD
RISK. TAKE CAUTION WHEN OPERATING RELIEF VALVE.
Drain Valve Open the drain valve and drain a few quarts of water from the
bottom of the tank to flush any hard water deposits. Replace if
valve is blocked or does not operate properly.
NOTE: DRAINED WATER MAY PRESENT A SCALD RISK.
TAKE CAUTION WHEN OPERATING DRAIN VALVE.
FINAL INSPECTION
Check list
Verify that you have completed entire check list. WARNING:
FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY
OR DEATH
Homeowner Review what you have done with the homeowner.
INITIAL AND DATE AFTER INSPECTION/SERVICE. CONTINUE INSPECTIONS ON
ANNUALLY BEYOND THE FOURTH YEAR.
Table 2 - *If applicable to system.
APPROXIMATE TIME / TEMPERATURE
RELATIONSHIPS IN SCALDS
120
o
F More than 5 minutes
125
o
F 1 ½ to 2 minutes
130
o
F About 30 seconds
135
o
F About 10 seconds
140
o
F Less than 5 seconds
145
o
F Less than 3 seconds
150
o
F About 1 ½ seconds
155 o F About 1 second
Table 1
Risk of scald injury increases as you increase water temperature.