Geco GC203 User Manual

Page 18 Service Manual for Producers SCCB TYPE GC203
PPUH „GECO” EDITION I PRINTOUT DATE 2018-07-26
8. ‘Abnormal’,
‘strange’ behavior of
the unit.
Check:
- if 230V voltage is present on the power supply terminals L and N
- condition of the power supply connectors
- grounding of the refrigerating unit
- condition of the electrical installation and number of the units connected to
one phase
- if you have the type of thermostat (label with output scheme) designed for
your unit
- if the control panel, actuator or the ribbon plugs have been exposed to water
or any other liquid
- if the control panel, actuator or ribbon plugs are exposed to moisture or
rapid temperature fluctuations
- correct connection of the actuator to the control panel
- connect another ribbon
9. Problems with
defrosting the unit
Check:
- value of the parameter ‘d2’ and ‘c0’, ‘c1’
- value of the parameter ‘c1’. This is the maximum unit defrosting time,
whether the evaporator has reached the programmed temperature of the end
of defrosting, or not (parameter ‘d2’). If this time is too short complete
defrosting of the unit will not be possible
- correct fastening of the sensor to the evaporator lamella.
IT MUST BE FIXED SECURELY AND ADHERE CLOSELY TO THE
LAMELLA!!!
- if the evaporator sensor is fixed in place, where the ice remains for the
longest time, if not, check the temperature on the sensor at the moment,
when the last ice lumps fall off the evaporator. THIS IS THE
TEMPERATURE WHICH SHOULD BE ENTERED AS PARAMETER ‘d2’
10. The unit does not
reach the preset
temperature and
does not ‘refrigerate’
Check:
- the temperature programmed by the user
- value of the individual parameters, and in particular 'c2', 'c5', 'd0', 'd1'
- section 9 - Problems with defrosting the unit. If unit defrosting is not
complete, the unit will not be able to reach the programmed temperature !!!
- the way and place of securing the chamber sensor
- if any side panes have been fitted in the rack or sliding panes in the glass
case
- IF THE UNIT IS LEFT IN THE DRAFT OR IN THE SUN !!!
- if there are no fans or air conditioning units installed on the ceiling or nearby
- if condenser is clean
- temperature in the store (each manufacturer specifies max. working
temperature of the unit)
- gas volume, fans, evaporator heater, hose draining water from the
evaporator
11. Wrong operation
of the door open
sensor
Check:
- ‘r6’ and ‘r7’, ‘r9’ parameter value
- sensor connection correctness
- if the sensor is connected to the actuator then check the connection
between executive module with the control panel
- connect another tape

Geco GC203 Specifications

General

Brand	Geco
Model	GC203
Category	Controller
Language	English