Instruction manual

K1, K3 series chillers – Installation and Operation manual
Issue 7.0 Page 9
3.0 Operation
K series chillers have been configured to provide temperature stability to ±0.1°C.
The chiller includes digital display and high/low temperature and low fluid level alarms.
High temperature alarm: Preset at 15°C – neon only
Preset at 25°C – neon, buzzer* and HI warning display
Low temperature alarm: Preset at 8°C – buzzer* and LO warning display
Low fluid alarm: Neon and buzzer* only
* The buzzer can be muted by pressing the MUTE button on the controller.
K series chillers are fitted with a high performance 3 term PID controller, which is capable
of controlling temperature to within 0.1°C of set point. In addition, there is a high and low
temperature warning via the LED and buzzer on the display of the controller, which is
triggered if the temperature deviates more than 10°C from the set point.
Adjusting the set point
There are three buttons on the controller, used to adjust the setpoint.
Whilst depressing button Ø, press button q or p to decrease or increase the setpoint
respectively.
If the set point is moved more than 10°C the alarm may be triggered and the unit will need
to be switched off and then on to reset the alarm. It is not possible to set the temperature
outside the preset values of -4°C and +35°C.