Re f r i g e r a n t C h i l l e r M a n u a l
w w w.t h e a q u a r i u m s o l u t i o n .c o m
7
OPERATION
Note:
Before starting the chiller, you must run the pump to ensure the correct operation of the water circulating/
filtration system.
There are three buttons for changing or setting the temperature on the control panel. (4 buttons on the
DC4000 model)
AQUARIUM TEMPERATURE DISPLAY & SET TEMPERATURE DISPLAYS
When in operation, the display of the chiller will show the current water temperature. Press the (SET) button
once and the display will change to show the current set temperature for the unit, a dot (1) on the display
twinkles to indicate the setting temperature. Press the SET button once again or wait for 8 seconds and the
display will return to the aquarium temperature.
ADJUSTING THE SET TEMPERATURE
Press the (SET) button for more than three seconds to enter the programming mode, indicated by a beep
and the current set temperature value will flash on the display. Press the button for increasing temperature
or button for decreasing the temperature to set your new required parameters. You will hear a beep with
each press whilst in programming mode. Press the (SET) button again to save or just wait for eight seconds.
The display will revert to the temperature of the aquarium water whilst the chiller is working. The available
temperature set range is from 4ºC to 28ºC.
DC4000 ONLY - ADJUSTING THE SET TEMPERATURE
There are 4 keys on the control panel for this larger model to control the cooling and additional heating cycle.
To adjust the chiller temperature, press (COLD) for 3 seconds and then follow the standard set temperature
adjustment instructions above. Temperature adjustment is available between 3ºC to 46ºC
To adjust the heating temperature, press (HEAT) for 3 seconds and then follow the standard set temperature
adjustment instructions above. Scroll through the modes with the
arrows.
“TPS” will be shown on the display to indicate the heating temperature is enabled. Temperature adjustment is
available between 3ºC to 46ºC.
“DST” will be shown on the display to indicate the temperature to start defrosting.
“DFT” will be shown on the display to indicate the temperature to stop defrosting.
Confirm the required mode by pressing (HEAT) again and the current set value will appear on the display, press
the
arrows to choose the required value and then press (HEAT) again to set or wait 8 seconds.
CHANGING DEFROST START AND STOP TEMPERATURES
The heating circuit of this chiller has a defrost function to maintain heating efficiency. This is not used on the
cooling mode.
To change the START defrost temperature (default -3ºC), choose function DST from the above menu and press
(HEAT) again to enable the setting mode. Press the
arrows to choose the defrost start temperature (from
-15ºC to +3ºC).
To change the STOP defrost temperature (d5C), choose function DFT from the above menu and press
(HEAT) again to enable the setting mode. Press the
arrows to choose the defrost stop temperature (from
-12ºC to +15ºC).
ADJUST HYSTERESIS TEMPERATURE
With the DC4000 model it is possible to adjust the hysteresis value between the on temperature and the off
temperature between 1ºC and 3ºC. At 1ºC the chiller will switch off and off more often but maintain a tighter
temperature range.
Press the
key for 3 seconds until the digits twinkle and press the
buttons to adjust the value.
EN