aquatherm AT-5000 Installation, Use & Care Manual - Page 9

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UNIT PREPARATION AND OPERATION

e. Set Master switch to on position. LCD display on temperature controller

will power up indicating set point temperature and water circulating

temperature.

display correct tank temperature and pressure to equalize.

f. Select desired tank temperature on LCD display by adjusting temperature

controller (red buttons on right side of LCD display).

g. Set Standby switch to On position. Temperature controller will now take

command of determining whether cooling or heating is required and

automatically control tank temperature.

Note: See following section for temperature controller functions.

Master

Switch

Standby

Switch

4. Temperature Controller Indicator Lights: There are three indicator lights

below the LCD display; green, amber, and red. These lights indicate the

current condition of the system as follows:

• No Lights Illuminated: Temperature stabilized to within ± .5° F of set

point and within differential parameters.

• Green Light Illuminated: System chiller is operating and lowering water

temperature to set (desired) temperature.

• Green Light Flashing: System safety has been initiated and 3-minute

time delay has begun. Possible cause: power failure, unit startup.

• Amber Light Flashing: System temperature is above or below 5° F of set

(desired) water temperature. Possible causes: initial unit setup deviation,

water added to tank, power failure.

• Red Light Illuminated: System heater is operating and raising water

temperature to set (desired) temperature.

• Red Light Flashing: System safety has been initiated and 3-minute time

delay has begun. Possible cause: power failure, unit startup.

Note: If indicator lights continue flashing after 3 minute delay, turn off

Standby and Master Switches and seek service.

Allow several minutes for the temperature controller to

Indicator

Lights

Adjust

Set

Temperature