A.O. Smith PROLINE ELECTRIC 730098, Руководство по техническому обслуживанию и устранению неисправностей

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CHECK WATER PRESSURE
INSPECT T&P RELIEF
VALVE
4
1. Check Water Pressure
2. Control Water Pressure
3. Control Thermal Expansion
4. Inspect T&P Relief Valve
5. Drain and Flush Tank
6. Check/Replace Anode Rod
Check water pressure at the drain valve or hose
bib. If water pressure is above code maximum (80
psi), install a Pressure Reducing Valve (PRV). Water
pressures are higher at night and lower during the
day. If daytime water pressure is 60 psi or higher,
nighttime pressure will likely be above 80 psi—
install a PRV.
Inspect the Temperature and Pressure (T&P) relief
valve per instructions on the valve’s label. T&P relief
valves will drip if the water pressure is too high or
due to thermal expansion on a closed plumbing
system (need expansion tank). Control water
pressure and install a thermal expansion tank before
replacing a dripping T&P relief valve.
1
Turn power off or set control to “pilot” before
performing maintenance. Make sure water heater is
completely full of water before returning to service.
ANNUAL WATER HEATER
MAINTENANCE CHECKLIST