AquaStar 125B NGS Kurulum ve Kullanım Talimatları Kılavuzu - Sayfa 9

Su Isıtıcı AquaStar 125B NGS için çevrimiçi göz atın veya pdf Kurulum ve Kullanım Talimatları Kılavuzu indirin. AquaStar 125B NGS 16 sayfaları. Automatic instantaneous type water heaters for use with natural and liquefied petroleum gas

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NOTE: If main burner should fail to ignite, make sure

pilot is burning. If not, repeat lighting steps 1 through 6.

TO TURN OFF GAS TO APPLIANCE

Depress the OFF button ( ) and close the main gas valve

by turning the handle clockwise (

INFORMATION ABOUT WATER TEMPERATURE

The AquaStar 125B LPS and 125B NGS water heaters

have a gas control that modulates burner output in

response to water flow. Its purpose is to ensure that the

hot water temperature will remain steady, although the

water flow demand might vary (down to 1/2 gal/minute).

The AquaStar 125 B"S" will produce a temperature rise of

approximately 90°F at flow rates between 0.5 and 1.8

gallons per minute unless the water has been preheated.

If the incoming water is already hot, the burners will

modulate accordingly so the outlet temperature will not

exceed 140°F.

Cold water will have to be mixed in at the faucet to produce

comfortable temperatures. Mixing in cold water will

produce higher flow rates and will reduce risk of scalding.

Note: 105° is the maximum recommended temperature

for a hot bath. Handwashing should not be done in water

hotter than 112° - and cooler for older adults, young children

or persons with sensory loss. Remember that scalding

can occur in 20 seconds with 135° water.

MAINTENANCE AND SERVICE

Approximately once a year, the AquaStar should be

checked, cleaned and serviced as necessary. To remove

the front cover, first remove the incandescent particle tray,

then unscrew the central screw located at the bottom of

the front cover. Pull main cover out toward you and lift up

and out. THE FOLLOWING OPERATIONS SHOULD BE

PERFORMED BY A QUALIFIED SERVICE PERSON:

Vent System: Should be checked annually. Clean and

repair as needed.

Water Valve (Part # 8707002392): The water valve on

this heater should be serviced periodically The frequency

will depend on the mineral content of the water and

conditions of use or whenever signs of corrosion appear

at the gas and water valve joint. Check that the water inlet

filter (#35 on Figure 13, page 14) is clean.

Pilot Flame: The pilot flame should burn with a clean sharp

blue flame and should resemble the diagram in Fig 8. If

the flame is yellow, or if the pilot knob has to remain

depressed for a long time in order to keep the pilot lighted,

the pilot burner and or the pilot burner orifice may need to

be cleaned (NG), the orifice may need to be replaced(LP),

and or the air screen may need cleaning. The pilot flame

should envelop approximately 10 mm (3/8") of the tip of

the thermocouple. If it is too small, the pilot burner must

be cleaned. To obtain a spark, the position of the Piezo

igniter electrode should be approximately 3 mm (1/8") from

the pilot burner tip.

) to the OFF position.

3mm

Fig. 8 - Characteristic Pilot Flame

To clean the pilot burner and/ or the pilot orifice : Turn

off the gas at the unit. Remove the cover of the heater. To

do so, remove incandescent particle tray and unscrew the

central screw located at the bottom of the front cover. Pull

main cover out toward you and lift up and out. Pull the air

screen off, wash it and blow any lint off (See Fig 10). The

pilot orifices should also be cleaned or replaced. Do not

enlarge the orifice. Do not use any wire or sharp object

to clean orifices. Natural gas orifices are large enough

that you can usually clean them by blowing through them.

LP orifices, on the other hand, are too small to clean and

should be replaced. See #3 in Trouble Shooting Section.

To access the pilot orifice, remove 2 screws holding pilot

assembly in place. Then loosen compression fittings to

expose pilot orifice.

Fig. 9 - Pilot burner with air screen/ pilot orifice

Main Burner Flames: The main burner flames should be

blue, with a more intense blue cone in the center core.

Yellow flames could be a sign of wrong size gas orifices or

Correct gap between pilot

burner tip and piezo electrode

tip

Piezo Electrode

Air screen filter

Thermocouple

Piezo

Electrode

AIR SCREEN

PILOT ORIFICE