lp-32 Rev. 003 Rel. 010 Date 2.22.19
8
demand applications (spas, hot tubs, whirlpools).
6. When the system is completely flushed, purged of air, and the
temperature is set, turn on the water heating system. Observe
operation. Ensure the boiler shuts down after the storage tank set
point is satisfied.
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 water heating
system. Installer must also inform the owner that the lack of proper
care and maintenance may result in hazardous conditions.
Annual Maintenance Activities
Date Last Completed
System
1st Year
2nd Year
3rd Year
4th 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. Ensure all components
(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 lo-
cal codes. Verify system pressure is in the safe operating range.
Temperatures
*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 nec-
essary.
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 Valve 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: 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
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 2 - Maintenance Activities Checklist - *If Applicable to System
Figure 6 - Sealing the Storage Tank for Sanitary Applications
