JULABO FPW50-MA Refrigerated and Heating Circulators - Manual (Page 36)

Operating procedures
36
6.2.2. Switching on the cooling machine
Switching on:

Switch on the cooling machine using the switch (1b) .

Control of the cooling machine:
With the mains switch (1b) turned on, the circulator automatically
switches the cooling machine off and on.
• It is switched off, if:
- the actual working temperature is increased by >30 °C
(cooling is not required).
- the heater operates at full power (>800 W) for longer than 5
minutes.
• It is switched on, if:
- cooling is necessary for maintaining the bath temperature.
After switch-off, the cooling machine automatically switches on
only after a delay of 5 minutes for protecting the cooling
compressor.

To save energy, turn off the cooling machine with the mains
switch (1b) whenever cooling is not required.
Caution: F12-MA
If the circulator is turned off with the mains switch (1a), or in operating state
„OFF“ or „rOFF“, the refrigerating unit is not switched off simultaneously.
Turn off the refrigerating unit with the mains switch (1b) as well.
Danger of freezing when water is used as bath fluid!