Carel Hecu CO2, Руководство пользователя

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21
ENG
Hecu
C O
2
+0300085EN rel. 2.2 - 07.05.2019
5. COMMISSIONING
5.1 Guided commissioning procedure
Hecu CO2 can be setup the fi rst time from the pGDe or pLDpro user
terminal. If the controller has not yet been confi gured, the user terminal
shows the fi rst screen in a guided confi guration procedure, called the
wizard. Otherwise, the same menu can be accessed from branch: L Setup
>> b.wizard.
The main parameters needed for general confi guration are shown one at
a time. The wizard screens are all numbered in the top right corner; the
following explanations refer to this number. To go from one screen to the
next press
È
, to return to the previous screen press
Ç
.
Screen Lb01: indicates the type of system, medium or low temperature.
Screen Lb02: change unit of measure from SI (°C, barg) to Imperial (°F,
psig).
Screen Lb03: indicates the type and number of compressors.
Screen Lb04: indicates the type of modulating device associated with
the compressor selected in the previous screen.
Screen Lb05: indicates the BLDC compressor model and the power+
inverter serial address (always = 1). This is used to understand whether
the inverter is on and connected via serial with Hecu.
Screen Lb06: indicates whether the connected model of inverter is
compatible and if so automatically downloads some typical compressor
parameters to the inverter. The parameters can also be written manually
by selecting “Yes” for Write default.
Screen Lb07: indicates compressor control based on pressure and the
corresponding refrigerant.
Screen Lb08: indicates the compressor control set point and diff erential
set as default by CAREL based on the type of application and the
refrigerant. The type of control is always proportional and integral,
and when exiting the wizard, control will be fi xed set point only until
confi guring communication with the cabinets, when the fl oating suction
pressure set point can be enabled.
Screen Lb91: indicates the number of fans. A maximum of two fans can
be selected.
Screen Lb92: indicates the type of fans, ON-OFF, modulating PWM or
0-10 V.
Screen Lb95: indicates gas cooler control based on temperature.
Screen Lb96 Lb97: indicates the type of control and the working set
point and diff erential for the fans.
Screen Lb99: indicates which valves have been installed on the unit for
management of CO2, and the type
Screen Lb3a: indicates the end of the wizard procedure. Pressing ENTER
ends the procedure, and the system will be confi gured based on the
options selected.
Important: wait a few seconds for the automatic default value
download procedure to be completed.