Evaporation Adjustment; Set-Point Management In Evaporation Mode - LU-VE Emeritus LU1W Manual De Usuario

This mode is available for combined heat exchangers that allow both condensing and evaporation. The parameter
defining this option, factory set, is parameter PG05.
In evaporation mode, only ventilation is controlled.
You can set evaporation mode by modifying the Mode parameter, or by using the DI3 digital contact. Digital contact
can be enabled via parameter PH34, contact polarity is determined by parameter PH35 (N.O. → open contact =
condensing/cooling, closed contact = evaporation). If enabled, the digital input status always has priority over the
"Mode" parameter.
PARAMETER
NAME
Sets the operating mode:
ModE 0 = Cooling/Condensing
1 = Heating/Evaporation
Enables DI3 condensing
PH34
/evaporation mode
Logic DI3 condensing/evaporation
mode
PH35
N.O. = normally open contact
N.C. = normally closed contact
READ ONLY
Combined condenser/evaporator
PG05
heat exchanger
0 = No
1 = Yes
MODBUS Registers
MODBUS MODBUS
Register Register Parameter Name and
Base 0 Base 1 Description
Mode
0x076C 1901 Operating Mode
PH34
Enable DI3
condensing/evaporation
0x081D 2078 mode.
PH35
Logic DI3
condensing/evaporation
0x081E 2079 mode
PG05
Combined
condenser/evaporator
0x0C13 3092 heat exchanger
5.1
Even in evaporation mode it is possible to select fixed or floating set-points with the ambient temperature (see
paragraph 4.1) and proportional adjustment or neutral zone (paragraphs 4.2.1 and 4.2.2).
LU1W - User Manual

5 EVAPORATION ADJUSTMENT

DESCRIPTION
Data Type and Notes
0 = Cooling/Condensing
1 = Heating/Evaporating
- unsigned short int
0 = disabled,
1 = enabled
- unsigned short int
0 = N.O. contact,
1 = N.C. contact
- unsigned short int
0 = No
1 = Yes
- unsigned short int

Set-point management in evaporation mode

DEFAULT MIN
VALUE VALUE
Cooling Cooling
No No
N.O. N.O.
No No
Default
value
0
0
0
0
55
MAX
UM
VALUE
Heating -
-
Yes
-
N.C.
Yes -
Decimal
min Max positions
0 1
0 1
0 1
0 1
REV.1.1 – 07/11/2017 - ENG
MENU
ADVANCED →
REGULATION
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
CONFIGURATION
MODBUS
Register
Type
0 holding
0 holding
0 holding
0 input