Navien NPE-32AWE, Руководство по установке

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45 Maintaining the Water Heater
12. As cleaning the heat exchanger is finished, reassemble the
parts.
Note
This water heater requires very little maintenance,
however a qualified technician should inspect the
water heater at the beginning of every heating season
and/or when there is a problem.
6. 4 Cleaning the I nlet W ater F ilter and
R ecirculation I nlet F ilter
To clean the filters:
1. Drain the water heater. R efer to “6.2 Draining the Water
Heater” on page 42.
2. While the filters are removed, rinse it with clean running
water (cold) and, if necessary, scrub it clean with a brush.
Cold Water
Inlet Filter
R ecirculation
Inlet Filter
(“A” model only)
3. R einsert and tighten the filters.
Cold Water
Inlet Filter R ecirculation Inlet Filter
(“A” model only)
4. R efill the water heater. R efer to “6.2 Draining the Water
Heater” on page 42.
10. R emove the six bolts connecting the mixing chamber and
the heat exchanger, and then remove the mixing chamber,
burner and the chamber brackets.
11. Use the brush to dislodge the debris and pour water down
the channels to flush out the debris.
Note
It is important to keep electric parts of the water
heater safe from water.
Navien recommends to use a hose.
If the water pressure of the hose is too high, water
may splash to other electric parts of the water
heater. Keep the water pressure of the hose as low
as it can.
If the water heater is installed in high area and you
cannot see the inside of the heat exchanger, use a
solid support and be careful not to fall.