HTP SSC-20TC, Инструкция по использованию и уходу, Страница: 16 / 20

lp-770 Rev. 000 Rel. 000 Date 6.21.21
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Part 6 - Maintenance and Troubleshooting
Periodic maintenance should be performed by a qualified service technician to ensure all equipment is operating safely and efficiently. The
owner should make necessary arrangements with a qualified heating contractor for periodic maintenance of the heater. Installer must also
inform the owner that the lack of proper water heater care and maintenance may result in hazardous conditions.
Annual Maintenance Activities Date Last Completed
Piping 1st
Year
2nd
Year
3rd
Year
4th
Year
Near heater piping Check heater and system piping for any sign of leakage; make sure pipes are properly
supported.
System
Visual Do a full visual inspection of all system components. Ensure all components
(including boilers, water treatment systems, mixing valves, circulators, etc.) are
operating properly and have been maintained.
Functional Test all functions of the system. Perform any maintenance required by local codes.
Verify system pressure is in the safe operating range.
Temperatures Check control for temperature accuracy.
*Verify safe settings on Mixing Valve (if installed in system).
Electrical
Smoke and CO
Detectors
*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.
Anode Rod
At least annually - Check the condition of the anodes.
To remove the anodes:
1. Shut off any power to the heater.
2. Close the domestic cold water supply valve.
3. Open the household hot water taps.
4. Attach a hose to the drain valve located at the bottom of the heater and drain
the heater.
5. Unscrew the anodes. EXAMINE THE ANODES AND REPLACE IF THE DIAMETER IS
LESS THAN 0.40 INCHES.
6. Replacement of the Anodes - The use of PTFE tape is recommended to ensure
watertight connection of the anodes.
NOTE:
Some water conditions may necessitate more frequent inspection of the an-
odes. Failure to inspect the anodes as required by installation conditions may result
in premature failure of the heater and VOID the warranty.
Relief and Drain Valve
Relief Valve Lift and release the relief valve on the water heater. 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: TAKE CAUTION WHEN OPERATING RELIEF VALVE. DISCHARGED WATER MAY
PRESENT A SCALD RISK.
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: TAKE CAUTION WHEN OPERATING DRAIN VALVE. DRAINED WATER MAY
PRESENT A SCALD RISK.
Final Inspection
Check for
Combustibles
Check area around heater for combustible materials such as gasoline or paint thinner.
If combustible materials are found, move away from the heater to a safe location.
Checklist Verify that you have completed the entire checklist. 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 Annually beyond the Fourth Year.
Table 13 - Maintenance Activities Checklist - *If Applicable to System