A.O. Smith EQ 280, Инструкция по установке и эксплуатации

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2.3 Pilot adjustment
The pilot can be adjusted by means
of the regulating screw under the
plastic cover on the right hand side of
the gas control block.
Turn the screw clockwise to
reduce the gas pressure and anti
clockwise to increase the pressure.
Care should be taken to ensure the pilot
covers the thermocouple element
correctly.
2.4 Putting out of operation
1. For short periods of time the control
knob should be turned to (
✸
); the
pilot keeps burning.
2. For longer periods of time the knob
should be turned to the (
●
) position;
the pilot is extinguished.
3. Close the gas tap in the supply pipe.
In case of longer interruptions or in
the event of risk of frost it is
recommended to also close the cold
water tap and to drain the appliance
after cooling (open the drain tap; it is
possible to connect a drain hose to
the drain tap; open the nearest hot
water drain point to prevent air
locks).
To be able to drain the appliance
completely it should be disconnected
and tilted slightly in the direction of
the drain tap.
2.5 Temperature regulation
The appliance is under water
supply pressure (maximum 8 bar). The
amount of cold water that is added is
equal to the amount of hot water used.
The gas control block automatically
regulates the gas supply. The main
burner will ignite as soon as a reduction
in water temperature is sensed by the
thermostat. The main burner will shut
down as soon as the preset
temperature is achieved.
Position 1 = approximately 30°C
Position 2 = approximately 40°C
Position 3 = approximately 50°C
Position 4 = approximately 60°C
Position 5 = approximately 70°C
At high water temperatures there is
more scale buildup in the appliance. It is
for this reason that it is recommended to
place the temperature control knob in
position 4 as the accumulation of scale
will be reduced. In addition a safety
thermostat has been fitted. This
thermostat completely shuts off the gas
supply if the water temperature
reaches 82°C, also extinguishing the
pilot burner.
Drawing 8 - Setting the pilot