AquaStar 125B NGS Panduan Petunjuk Pemasangan dan Pengoperasian - Halaman 9
Jelajahi secara online atau unduh pdf Panduan Petunjuk Pemasangan dan Pengoperasian untuk Pemanas Air AquaStar 125B NGS. AquaStar 125B NGS 16 halaman. Automatic instantaneous type water heaters for use with natural and liquefied petroleum gas
Halaman CetakNOTE: 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
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