Reliant FVIR GAS WATER HEATER Gebrauchs- und Pflegeanleitung PDF herunterladen (Seite 23)

periods of heat-up and cool-down.

2. Condensation causes sizzling and popping within the

burner area and should be considered normal.

3. Sediment buildup in the tank bottom will create varying

amounts of noise and may cause premature tank failure.

Drain and flush the tank as directed under the “Draining

and Flushing” section.

Smoke/Odor

The water heater may give off a small amount of smoke

and odor during the initial start-up of the unit. This is due to

the burning off of oil from metal parts of a new unit and will

disappear after a brief period of operation.

“AIR” In Hot Water Faucets

Hydrogen gas can be produced in a hot water system that has

not been used for a long period of time (generally two weeks

or more). Hydrogen gas is extremely flammable and can ignite

when exposed to a spark or flame. To prevent the possibil-

ity of injury under these conditions, we recommend the hot

water faucet be opened for several minutes at the kitchen sink

before using any electrical appliance which is connected to the

hot water system. If hydrogen is present, there will probably

be an unusual sound such as air escaping through the faucet

as water begins to flow. Do not smoke or have any open flame

near the faucet at the time it is open.

Safety Shut-off

This water heater is designed to automatically shut-off in the

event of the following:

1. The water temperature exceeds 189°F (87°C) for 160°F

models.

3. Excessive combustion chamber temperatures.

4. The presence of flammable vapors.

This unit is equipped with a flammable vapor sensor, designed

to shut off the gas supply in the event the heater has been

exposed to flammable vapors (spilled gasoline or paint fumes

for example). IMPORTANT: If the flammable vapor sensor

activates a qualified service person must be contacted to reset

the water heater. This unit is also equipped with a thermal

switch designed to shut off the gas control valve/thermostat

in the event the water heater has poor combustion caused

by a blocked vent or insufficient combustion air. If the switch

opens, check the flame-trap for signs of high temperature (blue

or black discoloration), and inspect your installation for any

problems with venting or combustion air (See Troubleshooting

Flowchart on page 29). Reset the thermal switch by depressing

the small button in the center of the switch.

IMPORTANT: Correct any issues prior to resetting the switch.

Contact the Product Service and Support Department for

service information at: 1-800-365-4054.

A temperature limit switch or ECO (Energy Cut Off) sensor

located in the gas control valve\thermostat, is used to shut off

the water heater if the water temperature exceeds 189°F (87°C).

The Diagnostic Status Light will flash a code indicating

an “Overheat Failure” (4 Flashes). See “Operating the

Temperature Control System.” If the gas control valve/

thermostat has an “ECO Lockout” the gas control valve/

thermostat must be replaced by a qualified person. Contact

your local dealer for service information.

Operational Conditions

Condensation

Whenever the water heater is filled with cold water, some

condensate will form while the burner is on. A water

heater may appear to be leaking when in fact the water is

condensation. This usually happens when:

a. A new water heater is filled with cold water for the first

time.

b. Burning gas produces water vapor in water heaters, par-

ticularly high efficiency models where flue temperatures

are lower.

c. Large amounts of hot water are used in a short time and

the refill water in the tank is very cold.

Moisture from the products of combustion condense on the

cooler tank surfaces and form drops of water which may fall

onto the burner or other hot surfaces to produce a “sizzling” or

“frying” noise.

Excessive condensation can cause pilot outage due to water

running down the flue tube onto the main burner and putting

out the pilot.

Because of the suddenness and amount of water,

condensation water may be diagnosed as a “tank leak”. After

the water in the tank warms up (about 1-2 hours), the condition

should disappear.

Do not assume the water heater is leaking until there has been

enough time for the water in the tank to warm up.

An undersized water heater will cause more condensation.

The water heater must be sized properly to meet the family’s

demands for hot water including dishwashers, washing

machines and shower heads.

Excessive condensation may be noticed during the winter and

early spring months when incoming water temperatures are at

their lowest.

Good venting is essential for a gas fired water heater to

operate properly as well as to carry away products of

combustion and water vapor.

It is always recommended that a suitable metal drain pan

be installed under the water heater to protect the area from

water damage resulting from normal condensation production,

a leaking tank or piping connections. Refer to the “Location

Requirements” section.

Water Heater Sounds

During the normal operation of the water heater, sounds or

noises may be heard. These noises are common and may

result from the following:

1. Normal expansion and contraction of metal parts during

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