LU-VE Emeritus LU1W Manual De Usuario página 179

The evaporation adjustment set-point is parameter PF10, expressed in temperature. Even when evaporating, the
evaporation pressure is converted to temperature according to the refrigerant type set for parameter PH01, to be
compared with the set-point.
You can set a second PE10 set-point higher than the first and switch the set-point in use via DI2 input: PH32 enables
the function and the PH33 parameter changes the polarity of the contact (N.O. → contact open = PF10, contact closed
= PE10).
Parameter PE01, set to Evaporation or Condensing + Evaporation, allows the set-point between PF10 and PE10 to
dynamically vary (set-point floating) based on ambient temperature, even in evaporation mode. With floating set-
point, for each PE08 duration in which the ambient temperature remains above the PE06 ambient temperature
threshold, the set-point increases an offset that is equal to parameter PE05. This happens until the set-point reaches
the maximum value PE10. Instead, for each PE08 duration where the ambient temperature remains below the PE06
temperature minus the PE07 differential, the evaporation set-point decreases by an offset equal to the PE05
parameter until PF10 is reached.
The DI2 digital input prevails over setting the floating set-point by outdoor temperature.
The set-point in use can be viewed on the VENTILATION screen and via MODBUS via the actSetH parameter.
PARAMETER
NAME
PF10 Evaporation set-point
PE10 Maximum evaporation set-point
PH32
Enable DI2 set-point selection
Logic DI2 set-point selection
PH33 N.O. = normally open contact
N.C. = normally closed contact
Floating set-point type:
0 = No (disabled)
PE01
1 = Condensing
2 = Evaporation
3 = Cond. + Evap.
Evaporation set-point variation
PE05
offset
Outdoor temp. threshold for
PE06
evaporation set-point increase
Outdoor temp. differential for
PE07
evaporation set-point return
Waiting time set-point
PE08
decrease/increase
Refrigerant type:
1 = R22
2 = R134a
PH01 3 = R404a
4 = R407c
5 = R410a
6 = R507
LU1W - User Manual
DESCRIPTION
DEFAULT MIN
VALUE VALUE
0.0 -30.0
10.0 -30.0
No No
N.O. N.O.
No No
0.5 0.0
30.0 20.0
2.0 0.0
300 0
R410a R22
56
MAX
UM
VALUE
40.0 °C
°C
40.0
-
Yes
-
N.C.
Visual +
- USER → OPTIMIZAT.
Evap
°C
20.0
80.0 °C
°C
20.0
sec
9999
- USER → OPTIMIZAT.
R507
REV.1.1 – 07/11/2017 - ENG
MENU
ADVANCED →
VENTILATION
ADVANCED →
T. OUTDOOR
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
T. OUTDOOR
ADVANCED →
T. OUTDOOR
ADVANCED →
T. OUTDOOR
ADVANCED →
T. OUTDOOR