Heidolph Hei-CHILL 3000, Operating Manual

Page: 18 / 120

Start-Up
18
Presettings
Selecting the language
(See chapter “Startup, Selecting the language”)
Setting the temperature limit
Before placing the chiller into operation, the desired temperature setting needs to be
entered depending on the thermal fluid being used.
Warning:
Risk of poisoning! Risk of injury!
Each thermal fluid covers a certain temperature range. If the tempera -
ture exceeds or drops below this temperature range, it could damage
the device and cause the thermal fluid to escape. Escaping thermal
fluids can lead to slipping and poisoning.
Check the permissible temperature range for the thermal fluid being
used and carefully set the temperature limits on the device.
The desired cooling temperature is maintained by defining the following two variables:
▪ Temperature limit :
defines the upper and lower maximum values that must not be exceeded. As soon as
the temperature exceeds or falls below these values, a warning signal will sound.
▪ Temperature setpoint :
defines the cooling temperature for the thermal fluid. Until this setpoint is reached,
the current temperature will fluctuate above and below this setpoint and thus also
between the upper and lower temperature limits.
Both values for the temperature limits are dependent on the thermal fluid being used
(see also chapter “Spare parts and accessories, Spare parts”) .
Setting the upper temperature limit
✓ The device is switched on.
➜ Select the “Setup” menu option from
the main menu.
➜ Press the button “Select” .
➜ Select the menu option “Temp. limits”
from the “Setup” submenu.