Lauda RA 12 - DEFINING TEMPERATURE LIMITS HI AND LO; REFRIGERATION UNIT SUBMENU COOL

28 / 52 Alpha 7/2022
7.6 Defining temperature limits Hi and Lo
With this function, it is possible to define a minimum and a maximum temperature in which the thermostat controls. By
reaching the temperature limits, a warning appears. In this way setpoint input can be prevented which may damage the
heat transfer medium or the apparatus. For example, if water is used as the heat transfer liquid, 95 °C would be practi-
cable as the maximum temperature and 5 °C as the minimum temperature. The default values are Hi = 105 °C and
Low = -30 °C.
2x for Hi
3x for Lo
and 1x
 Select option Hi (maximum temperature),
or option Lo (minimum temperature) using the key .
 Enter the selection
The maximum temperature can be set from 35 °C to 105 °C.
The minimum temperature can be set from -30 °C to 30 °C.
The current temperature limit value is displayed flashing.
or
 Set the required temperature limit.
Wait 4 seconds or
 Display flashes 4 seconds  new value is automatically accepted, or
 By pressing the <Enter> key the value is accepted immediately.
7.7 Refrigeration unit submenu CooL
Menu Cool only with cooling thermostats.
4x to CooL
and 1x
 Call the option CooL.
or
 Configure the refrigeration system with these possible settings:
Auto automatic refrigeration mode;
on refrigeration on duty;
oFF refrigeration out of duty.
 The selected mode is displayed flashing.
Wait 4 seconds or
 Display flashes 4 s  new selection is automatically accepted,
or
 it is immediately accepted with the <Enter> key.
Hi
Lo