Geco GC201 - Functions of Buttons; Programming of Temperature; Signalling of Compressor Operation

SERVICE MANUAL FOR PRODUCERS SBR TYPE GC201 Page 7
PPUH „GECO” EDITION I PRINTOUT DATE 18-04-30
If the unit was on when power was disconnected, at the end of start procedure it will be on and the value of
temperature in chamber sensor appears on the display.
If it was off, two horizontal lines will appear on the display.
2. Functions of buttons
- When pressed and holded for 5 sec., thermostat is switched on/ off. When you hold down the button, a
rising sound signal is generated.When it is off, two horizontal lines appear on the display.
- When pressed, light is switched on/ off. This is signalled by a green diode at the button.
Button works independently from thermostat switch - .
- It is used for manual activation of defrosting or fast freezing of products depending on the setting of
parameter c4.
- used to program settings and to end programming.
- It is used to increase the set temperature during programming and to switch on the evaporator
temperature display, if the evaporator sensor is operated r2 = 0 (to activate the preview, hold the button
longer).
- It is used to reduce the set temperature during programming and to switch on the chamber temperature
during defrost (to activate the preview, hold the button longer).
3. Programming of temperature:
After pressing programming mode is turned on, the value of a parameter appears on the display and a
diode at the button switches on.
When or are pressed, the value of a parameter changes within the range ‘d0’ – ‘d1’.
When is pressed, settings are memorised and normal operation of the controller follows.
If GC201 is switched off during programming, it will not memorise the new value of temperature.
4. Signalling of compressor operation
When the compressor is on, small red diode (dot) in the right bottom corner of temperature display is on. This
facilitates checking of possible defects of the system.
If the compressor should be switched on and it is not because one of protections has been switched on (see
item 5), the dot which signals operation of the compressor will flash. When the set time of protection ends, the
dot will be lit permanently and the compressor will be switched on.