Instruction manual

KT series chillers – Installation and Operation manual
Issue 7.0 Page 10
KTD models only
Connect the mains cable and switch the unit on, and after a short self-test, the temperature
controller will show coolant temperature. The KTD chiller is fitted with a high
performance 3 term PID controller, which is capable of controlling temperature to within
0.1°C of set point. The single neon, alert icon and buzzer provide visual
and audible alarm to both high and low temperature (triggered if the temperature deviates
more than 10°C either side of the set point), and to low fluid level.
Adjusting the set point (KTD only)
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 temperature
will then have to stabilise at the new set point before the alarm stops.. It is not possible to
set the temperature outside the preset values of -4°C and +35°C.
CAL controller error messages (KTD only)
Message displayed Cause and correction
InPt – FAiL
Sensor has failed.
Order replacement part number EA038
Data – FAiL
Controller problem.
Switch off, then on.
If problem is persistent, order replacement
part EA055
- AL - (At start up)
Ambient temperature outside of permitted
range, 5°C - 40°C
- AL - (After changing setpoint)
Restart the controller to reset the alarm
- AL - (During normal operation)
Fault on system.
Refer to Troubleshooting section
Operator
section