Spray System Evolution Adjustment - LU-VE Emeritus LU1W Manual De Usuario

MODBUS MODBUS
Parameter Name and
Register Register
Description
Base 0 Base 1
PR31
Adiabatic panel
0x078C 1933 adjustment type
PR32 (Low)
Set-point water flow rate
0x078D 1934 to adiabatic panels
PR32 (High)
Set-point water flow rate
0x078E 1935 to adiabatic panels
PR33
Neutral zone/ adjustment
band in adiabatic panel
0x078F 1936 flow rate adjustment
PR34
Change in modulation in
0x0790 neutral zone adiabatic
Invalid 1937 panel adjustment
PR35
Neutral zone modulation
time in adiabatic panels
0x0791 1938 adjustment
PR36
Minimum request for
0x0792 1939 adiabatic panels activation
PR37
Minimum opening value of
adiabatic panel modulating
0x0793 1940 valve
PR38
Maximum opening value of
adiabatic panel modulating
0x0794 1941 valve
PR39
AP Water valve activation
delay from AP solenoid
0x0795 1942 valves
4.5
Spray resource is activated only when the outside temperature is higher than the PE12 threshold (with return
differential parameter PE13).
When at least one spray solenoid valve is active the fan speed is limited to parameter PF36.
Considering the spray band for the spray action, it is divided into 4 steps according to the PR11, PR12, PR13
percentage parameters at which each solenoid valve is switched on/off.
Each valve supplies one of the 4 different sectors into which the exchanger spray system is subdivided: two ramps
spraying half the length of the exchanger on each of the two sides. The 4 solenoid valves activate from the least used
ramp (vice versa in closing), then in clockwise rotation with the aim of balancing the two circuits (i.e. there cannot be
2 solenoid valves open on one side and none on the other side). Delays between switching on and off consecutive
solenoid valves can be set (parameters PR14 and PR15).
LU1W - User Manual
Data Type and Notes
0 = Double loop, 1 = Direct
with saturation P, 2 =
Direct with saturation ZN
- unsigned short int
[l/h]
- long int divided into 2
word 16 bit
[l/h]
- unsigned short
[%]
- unsigned short int
[sec]
- unsigned short int
[%]
- unsigned short int
[%]
- unsigned short int
[%]
- unsigned short int
[sec]
- unsigned short int

Spray System Evolution Adjustment

Default
Min
value
0 0
2000 1
30 1
2.00 0.00
5 1
20.00 0.00
20.00 0.00
100.00 PR37
0 0
45
MODBUS
Decimal
Max Register
positions
Type
2 0 holding
30000 0 holding
1000 0 holding
100.00 0.00 holding
9999 0 holding
100.00 0.00 holding
PR38 0.00 holding
100.00 0.00 holding
9999 0 holding
REV.1.1 – 07/11/2017 - ENG