Fluval Fish tank heater A771 A771 Data Sheet
Product codes
A771
ill. C) The three protruding arms of the side mounting bracket are then clipped into the
revealed slots of flat heater bracket (ill.D). Important: Place the heater where the unit
is unobstructed, and where there is a free flow of water to ensure even heat dispersion.
Ensure that the heater is positioned so that the aquarium water level is never below the
MIN indicator found on the guard of the heater. If necessary, you can simply adjust the
heater height by sliding it along the bracket, by squeezing the two release arms on the
side of the heater guard. Be sure there are no rocks, decorations or gravel obstructions
touching the heater to create uneven heat.
revealed slots of flat heater bracket (ill.D). Important: Place the heater where the unit
is unobstructed, and where there is a free flow of water to ensure even heat dispersion.
Ensure that the heater is positioned so that the aquarium water level is never below the
MIN indicator found on the guard of the heater. If necessary, you can simply adjust the
heater height by sliding it along the bracket, by squeezing the two release arms on the
side of the heater guard. Be sure there are no rocks, decorations or gravel obstructions
touching the heater to create uneven heat.
2. Allow heater to acclimatize in the aquarium water temperature for 20 minutes before
plugging it into the electrical outlet. Be sure to arrange a drip loop for the heater cord
and any other electrical item that is placed in or on the aquarium.
and any other electrical item that is placed in or on the aquarium.
3. After 20 minutes, plug in the heater and set the degree scale if necessary (refer to the
paragraph “HOW TO SET °C OR °F DEGREE SCALE” below) and the aquarium
temperature (refer to the paragraph “HOW
temperature (refer to the paragraph “HOW
TO
SET
THE
AQUARIUM
TEMPERATURE” below). Once set, there is no need for readjustment.
4. At each Power-on, the E Heater goes through an initial self test procedure during which
it carries out a self-diagnosis to check internal circuitry and sensors operation, followed
by a period to verify the surrounding conditions. The self-diagnostic check requires
several minutes to complete, during which time the E heating element is switched on
for a few seconds only to verify the heater operation and application conditions. After
the self-diagnosis is completed, the E Heater starts its standard operation. During the
self-diagnostic test, the LCD screen will display the water temperature.
by a period to verify the surrounding conditions. The self-diagnostic check requires
several minutes to complete, during which time the E heating element is switched on
for a few seconds only to verify the heater operation and application conditions. After
the self-diagnosis is completed, the E Heater starts its standard operation. During the
self-diagnostic test, the LCD screen will display the water temperature.
WARNING: The heater must never be operated outside of the aquarium. If the water level
falls below the minimum water level MIN, the thermostat can no longer "read” the water
temperature and therefore can no longer control the heating correctly. If it has to be taken
out of the water or when transferring or changing the water, disconnect the heater from the
power source and wait for at least 30 minutes to allow it to cool down.
falls below the minimum water level MIN, the thermostat can no longer "read” the water
temperature and therefore can no longer control the heating correctly. If it has to be taken
out of the water or when transferring or changing the water, disconnect the heater from the
power source and wait for at least 30 minutes to allow it to cool down.
HOW TO SET °C OR °F DEGREE SCALE
The heater is factory set on the °C degree scale for 50 Hz markets and °F degree scale for
60 Hz markets. In case you need to change the degree scale, hold the set lever in the full
left (-) position for at least 5 seconds (ill. E). When the new degree scale is displayed, you
may release the lever. After a few seconds, the display will automatically return to display
the water temperature (ill. F).
The heater is factory set on the °C degree scale for 50 Hz markets and °F degree scale for
60 Hz markets. In case you need to change the degree scale, hold the set lever in the full
left (-) position for at least 5 seconds (ill. E). When the new degree scale is displayed, you
may release the lever. After a few seconds, the display will automatically return to display
the water temperature (ill. F).
HOW TO SET THE AQUARIUM TEMPERATURE
The heater is factory set at 25 °C / 77 °F. If a different water temperature is desired, use the
easy set lever on the top of the heater. Push the lever to the right or left and release; the
LCD screen will start to flash showing the set temperature (ill. G and H). Each subsequent
The heater is factory set at 25 °C / 77 °F. If a different water temperature is desired, use the
easy set lever on the top of the heater. Push the lever to the right or left and release; the
LCD screen will start to flash showing the set temperature (ill. G and H). Each subsequent
(C)
(D)
(E)
(G)
(H)
(F)