Brookfield Bath, Model TC-602 - Manual (Page 9)

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Once the Safety Set temperature has been set, turn power to the Controller ON by pressing the
Power Switch on the front of the Controller. The pump will begin operating, the display will flash the
current temperature set point (tx.xx), the °C LED will light, and the current bath temperature will
appear on this display. Pump speed selection is made using the Pump Speed Selection Switch on
the rear of the Controller (see Section 1.4).
If power is disrupted because the Safety Set temperature was exceeded, place the Circuit
Breaker/Power Switch in the OFF position, press the Safety Set Reset Button, correct the problem
(low liquid level, incorrect Safety Set temperature, etc.), and then restore power.
Activation of the Safety Set during normal operation will display a fault (FLt 3) on the readout.
3.5 Selecting Temperature Units
The control set point and actual bath temperatures may be displayed in either °C or °F. The
factory-default is °C.
To change from °C to °F, place the Circuit Breaker/Power Switch on the rear of the Controller in
the OFF position and then press and hold the P2 Button while turning the power back ON.
To change from °F to °C, place the Circuit Breaker/Power Switch in the OFF position and then press
and hold the P3 Button while turning the power back ON.
NOTE: When the temperature display units are changed, the High Limit value and all temperature
presets revert to the factory-default values. If a calibration value has been entered, the value will be
retained.
3.6 Setting the High Limit
This feature provides additional safety and protection by allowing a selectable upper temperature
limit set point. To avoid an unwanted shutdown during regular operation, the high limit value should
be set at least 5°C higher than the selected control temperature
To set the High Limit temperature set point, press the P2 and P3 keys simultaneously and repeat
until (Hxxx) appears on the display. This is the current High Limit value. It is factory set at 152°C.
To change the displayed value, press and turn the Select/Set Knob until the desired High Limit set
point value is displayed. A clockwise rotation increases the value; a counterclockwise rotation
decreases the value. Press the Select/Set Knob a second time to accept the new value and return to
normal operation.
If the High Limit value meets or exceeds the control temperature set point, (E-H1) will flash on the
display. If this occurs, enter a higher value for the High Limit or reduce the control temperature set
point.
If the actual bath temperature reaches the High Limit setpoint, (FLt 1) will flash on the display.
Should this occur the Controller will automatically remove power from the heater and, in
Refrigerating/Heating units, the compressor as well. The pump will continue to operate.
Once the problem is corrected (bath temperature reduced or High Limit value increased), press the
Power button to clear the message.
3.7 Setting the Set Point Temperature
Press and release the Select/Set Knob. The decimal point flashes to indicate that the set point
temperature can be changed.
Turn the Select/Set Knob until the desired temperature set point is displayed. A clockwise rotation
increases the setting; a counterclockwise rotation decreases the setting. Press the Select/Set Knob
a second time to accept the displayed value. The decimal point stops flashing and the display will
indicate the actual bath temperature. Allow sufficient time for the bath to stabilize at the desired
temperature before making any adjustments to set point temperature.
NOTE: The unit will automatically accept the displayed set point after approximately 10 seconds of
inactivity, even if the Select/Set Knob was not pressed.
The set point temperature may be checked at any time by pressing the Select/Set Knob.
If the set point temperature cannot be raised, it is possible that the High Limit value is set lower than
the desired control temperature set point. Reset the High Limit value to 5°C or more above the
desired set point temperature.