Ventilation Adjustment In Evaporation Mode - LU-VE Emeritus LU1W Manual De Usuario

MODBUS Registers
MODBUS MODBUS
Parameter Name and
Register Register
Description
Base 0 Base 1
actSetH
Evaporation set-point in
0x0504 1285 use
PF10
0x07AE 1967 Evaporation set-point
PE10
Maximum evaporation set-
0x07D9 2010 point
diagnostic
interface PH32
only Enable DI2 set-point
0x081B 2076 selection
0x081C PH33
Controller Logic DI2 set-point
inhibit 2077 selection
PE01
0x28CE 10447 Floating set-point type
PE05
Evaporation set-point
0x07D4 2005 variation offset
PE06
Outdoor temp. threshold
for evaporation set-point
0x07D5 2006 change
PE07
Outdoor temp. differential
for evaporation set-point
0x07D6 2007 return
PE08
Waiting time set-point
0x07D7 2008 decrease/increase
PH01
0x0806 2055 Refrigerant type
5.2
5.2.1 Proportional adjustment
With proportional control, with the adjustment temperature equal to set-point, the modulating ventilation is
activated at maximum speed (parameter PF19). The fan speed decreases as the evaporation temperature increases,
approaching the set-point value plus the evaporative proportional band (parameter PF11); at this point the fans rotate
at the minimum speed (parameter PF18).
The minimum PF18 speed is maintained until the ventilation cut-off temperature is reached in evaporation mode
(parameter PF12).
If the evaporation temperature falls below the set-point value minus the PF13 differential, ventilation is forced to
100% (over-speed function). This operation ends, returning the fan speed to the maximum at normal operating
conditions, when the adjustment temperature rises above the set-point value minus the PF14 return differential.
LU1W - User Manual
Data Type and Notes
[unit of measure as set by
PH02, default °C]
- short int
[unit of measure as set by
PH02, default °C]
- short int
[unit of measure as set by
PH02, default °C]
- short int
0 = disabled,
1 = enabled
- unsigned short int
0 = N.O. contact,
1 = NC contact
- unsigned short int
0 = no, 1 = cond, 2 = evap,
3 = cond + evap
- unsigned short int
[unit of measure as set by
PH02, default °C]
- unsigned short int
[unit of measure as set by
PH02, default °C]
- unsigned short int
[unit of measure as set by
PH02, default °C]
- unsigned short int
[sec]
- unsigned short int
1 = R22, 2 = R134a, 3 =
R404A, 4 = R407C, 5 =
R410A, 6 = R507
- unsigned short int

Ventilation adjustment in evaporation mode

Default
min
value
0.0 -3276.8
0.0 -30.0
10.0 -30.0
0 0
0 0
0 0
0.5 0.0
30.0 20.0
2.0 0.0
300 0
5 1
57
MODBUS
Decimal
Max Register
positions
Type
3276.7 0.0 holding
104.0 0.0 holding
104.0 0.0 holding
1 0 holding
1 0 holding
3 0 holding
36.0 0.0 holding
176.0 0.0 holding
36.0 0.0 holding
9999 0 holding
6 0 holding
REV.1.1 – 07/11/2017 - ENG