Operation
Thermo Scientific Laboratory Refrigerators and Freezers
Installation and Operation Manual
21
6.4 Control Panel Lights
(Model 04LFEETSA)
The freezer is controlled with the thermostat knob.
1. Red control light
2. Yellow control light
3. Thermostat knob
Modes of operation
Continuous operation – the yellow light is on.
The cooling system operates continuously. This mode is selected when you
want to freeze large amounts.
Automatic operation – the yellow light is off.
The interior temperature is controlled by the thermostat which turns the
cooling system on and off. The frequency of switching the cooling system
on and off depends on:
•
The thermostat knob position (thermostat setting),
•
How often you open the door and
•
Ambient temperature
Temperature Selection
When the freezer operates automatically, the interior temperature is
controlled by the thermostat. The most suitable thermostat positions are in
the middle between
max
and
min
.
We recommend setting the thermostat on positions towards
max
only in
case you want to accelerate cooling or when the operation mode shall
correspond to the ambient temperature.