EVCO S.p.A.
Vcolor 679/689
| Installer manual ver. 1.0 | Code 144VC679E104
page
43
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70
10.14
Testing cycle
The password to enter this mode is -19.
A completely automatic testing cycle can be performed in this mode.
If proofing is configured, the testing cycle only applies to the heating phase (see point 1 below).
If retarding-proofing is configured, this function consists of the following phases:
-
heating phase
-
cooling phase
-
defrost
Press the START key to start up the testing cycle:
1.
Heating adjustment phase
The heating phase begins by checking the temperature and humidity. When setpoint T1 is reached, the heater switch-on cycles are
run to complete the phase. ‘Cycles’ are the time of the ON phase plus the OFF phase. If the setpoint is not reached in the time set
by parameter T3, the controller exits the testing cycle and the error “MAX TIME” is displayed.
If everything works correctly, the cooling phase starts up. First the T5 pull-down setpoint is reached and then compressor ON and
OFF cycles are performed on the cooling phase setpoint.
2.
Cooling adjustment phase
During this phase, probe connection is checked; the temperature of the evaporator probe must be lower than that of the cabinet,
while the temperature of the condenser must always be higher than that of the cabinet. If these conditions are not met, the test
ends.
This phase must not take longer than the maximum time set by parameter T7; if it does, the label “MAX TIME” will be displayed
and the test ends.
3.
Defrost phase
At the end of the temperature adjustment phase, a defrost cycle is forced (considering the standard defrost parameters, so
d00=0).
A label is displayed to indicate if this phase has been terminated due to temperature or time.
4.
Recovery phase
At the end of defrost, the controller must reach the cabinet setpoint set by parameter T9.
While the cycle is running, the temperatures of the cabinet-evaporator-condenser probes are displayed on the screen (if configured), as
well as the values of the humidity probe and, for each completed phase, the time and duration of the cycle.
The test can be terminated manually at any time by pressing the STOP key.
If there is a power outage during the cycle, the cycle is interrupted when power is restored.
