Midea LSBLG320/MZ - Page 45

DX type water-cooled screw chiller (PCB Control) MCAC-CTSM-2014-03
44
- the special parameters
- alert configuration parameters
- valve parameters
⑤ Press UP/DOWN button to select the category, and then press ENTER to enter the first class number
⑥ Press UP/DOWN to select parameters to be set, and then press ENTER to move to the parameter
value;
⑦Press UP/DOWN to modify the parameter value;
⑧Press ENTER to save the new parameter values;
⑨ Repeat the above 6, 7, 8 step change other parameters;
⑩ Press Esc to exit the manufacturer parameter modification program.
Unit Type
380,500,600,720,880,1000,1200,1420
Remarks
Setting
parameters
Refrigerant
R134a
Selected based on the refrigerant
type of the unit
Valve
Danfoss ETS250
Sensor S1
4-20 mA; 0-10.0 V
Automatically brought out by
subsequently set parameters
Control mode
shell-and-tube unit
---
Overheat degree
6
---
Valve opening upon start
50%
---
Pre-positioning delay
6
---
Valve opening in standby
state
0
---
Power supply mode
1
Available values include: (1) 0: 24 V
AC (2) 1: 24 V DC; default value: 0
Check
parameters
Enable manual valve
positioning
0
---
Manually set the valve
position
0
---
Auxiliary control
Invalid
---
Relay settings
Alarm relay
---
DI2 settings
Invalid
---
Variable 1 on the display
Overheat degree
---
Variable 2 on the display
Valve opened
---
Sensor S1 alarm
management
Valve at a fixed position
---
Sensor S2 alarm
management
Valve at a fixed position
---
S1: calibration offset
0
---
S1: calibration gain, 4–20
1
---