Reliant FVIR GAS WATER HEATER Technical Information PDF herunterladen (Seite 30)

BULLETIN 15

CONDENSATION

SYMPTOMS The water heater appears to be releasing water while the main burner is on or water

is found surrounding the heater shortly after the water heater has been used. This

bulletin explains why ﬂ ue gases condense and how you can differentiate between

condensation and leaking.

CAUSES Condensate is the result of air borne water vapor being chilled below the dew point.

The dew point is the temperature at which water vapor turns into liquid. Low incoming

water temperatures cool the piping and the heat transfer surfaces of the water heater.

When the main burner comes on, the hot ﬂ ue gases turn into condensate upon contact

with these surfaces. The typical home water heater will produce about one-half gallon

of water vapor during every hour of operation. Condensate is often mistaken for

leaking.

Newer heaters will condensate more than older heaters because modern water heaters

are much more efﬁ cient than their predecessors. The newer heaters utilize as much of

the energy out of the main burner ﬂ ame as possible. This lowers the ﬂ ue gas and tank

storage temperature and closer to the dew point temperature.

DIAGNOSIS To distinguish between a condensating water heater and a leaking water heater:

1. Wipe up any water under the heater.

2. Turn the knob on the thermostat to the pilot position.

3. Wait 8 hours, check for water accumulation under the heater.

4. Condensation should stop when the entire tank water is heated above

approximately 115 degrees.

• If no water is under the heater, the water heater was condensating.

• If water is under the heater, check further for a loose ﬁ tting. If all ﬁ ttings are

tight and the tank is leaking, replace the water heater. Leaking heaters cannot

be “repaired”.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 43 44

Keine Kommentare

Reliant FVIR GAS WATER HEATER Technical Information Seite 30