8
C6.1.7/1110-0519/E
In case of password value equal to "0":
the first modifiable parameter code is displayed (/1).
➔
To modify parameters see chapter 2.8.2 "Parameter modification" below.
In case of password value NOT equal to "0":
a flashing 0 is displayed.
1) Press or until the password value is displayed
2) Press
SEL
to confirm password
3) The first modifiable parameter code is displayed (/1)
4) To modify parameters see chapter 2.8.2 "Parameter modification" below
/1 Value to show on display
0 = Compressors and fans states (controller 1 = Compressor(s), and controller 2 = Fan(s))
1 = Suction pressure (bar(g))
2 = Saturation temperature from suction pressure (°C)
3 = Condensing pressure (bar(g))
4 = Saturation temperature from condensing pressure (°C)
5 = Digital Scroll compressor capacity (%)
6 = Fan speed (%)
7 = Digital Scroll compressor discharge temperature (°C)
2.8.2 Parameter modification
1) Press or to show the code of the parameter that has to be changed
2) Press
SEL
to display the selected parameter value
3) Press or to increase or decrease the value
4) Press
SEL
to temporarily confirm the new value and display its code
Repeat the procedure from step 1) "
press
or
to show...
" to modify other parameters.
To exit and confirm parameters with the new values:
➔
Press PRG to confirm the new values and exit the parameter modification procedure
To exit without modifying any parameter:
➔
Do not press any button for at least 60 seconds (TIME OUT)
2.8.3 Main parameters on EC2-552
The EC2-552 parameters must be configured according to unit model.
Parameter
EC2-552
c
Application parameters
Min
Max
Unit
Default
setting
c1
Number of compressors
1
2
-
2
c4
Compressor 1 control mode
0
2
flag
2
c5
Compressor switch logic
0
1
flag
1
c6
Number of compressors to switch in
case of sensor failure
0
2
-
0
Table 4: Main parameters for operation of HLR Digital Receiver units with Digital Scroll compressor
c1 Number of compressors
This default parameter is set to 2 for two-compressor units.
For single-compressor receiver units with Digital Scroll, c1 should be changed to 1.
c4 Compressor 1 control mode
0 = compressor 1 in standard control loop
1 = compressor 1 acts as base load compressor
2 = compressor 1 acts as modulating (PWM control for Digital Scroll compressor only)
NOTE: For a digital unit c4 should only be set to "2".