Additional Functions; Silent Mode - LU-VE Emeritus LU1W Manual De Usuario

8.1
The Silent Mode function, when activated, limits the maximum fan speed in order to reduce the sound output of the
exchanger. This mode can be set via parameter PF30. The maximum fan speed in Silent Mode corresponds to
parameter PF33.
The Silent Mode can be activated via DI4 digital input, according to time zone, or both modes (only one of the two
activation conditions need be true for the silent mode to be active). In the case of time zone activation, it is sufficient
to set the start-up time parameter (PF31) and end time (PF32). For digital input activation, the polarity of the contact
can be changed by parameter PH39 (N.O. → contact open = inactive, contact closed = active silent mode).
PARAMETER
NAME
Silent Mode Activation and
Frequency:
0: No (Disabled)
PF30
1: DI
2: Time Bands
3: DI + Time Bands
PF31 Silent Mode Start Time
PF32 Silent Mode End Time
Maximum fan speed in Silent
PF33
Mode
Logic DI4 silent mode activation
PH39 N.O. = normally open contact
N.C. = normally closed contact
MODBUS Registers
MODBUS MODBUS
Parameter Name and
Register Register
Description
Base 0 Base 1
PF30
silent mode activation and
0x07BE 1983 frequency
PF31 (Low)
0x07BF 1984 silent mode start time
0x07C0 1985 PF31 (High)
PF32 (Low)
0x07C1 1986 silent mode end time
0x07C2 1987 PF32 (High)
PF33
maximum fan speed in
0x07C3 1988

silent mode

ui_silentModeON
silent mode activation
0x0507 1288 status
LU1W - User Manual

8 ADDITIONAL FUNCTIONS

Silent Mode
DESCRIPTION
Data Type and Notes
0 = No, 1 = DI, 2 = Time
Bands, 3 = DI + Time Bands
- unsigned short int
number of seconds from
midnight
- long int divided into 2
word 16 bit
number of seconds from
midnight
- long int divided into 2
word 16 bit
[%]
- unsigned short int
0 = OFF, 1 = ON
- unsigned short int
DEFAULT MIN
VALUE VALUE
DI + Time
No OF
20:00:00 17:00:00
7:00:00 0:00:00
60.00 0.00
N.O. N.O.
Default
value
0
20:00:00
7:00:00
60.00
-
73
MAX
UM
VALUE
-
Bands
hh: mm: ss
23:59:59
12:00:00 hh: mm: ss
100.00 %
-
N.C.
Decimal
min Max
positions
0 3
17:00:00 23:59:59
0:00:00 12:00:00
0.00 100.00
0 1
REV.1.1 – 07/11/2017 - ENG
MENU
USER →
SILENT MODE
USER →
SILENT MODE
USER →
SILENT MODE
USER →
SILENT MODE
ADVANCED →
VARIOUS
MODBUS
Register
Type
0 holding
0 holding
0 holding
0.00 holding
0 input