UM AER 01 N 1GB

English
53SysAer
Main menu Q0
Item
Screen code
Parameter Unit Min Fact. Max Description / Note
SERVICE
Additional heater balance
Px
OAT limit °C -40 -30 40 Below this OAT limit, auxiliary heater replaces thermodynamic heating.
Hysteresis differential °C 0 2 9
Hysteresis on OAT limit to avoid switches between compressors and additional heater when OAT is near the limit.
Py1
Enable compressors in extra heating
N/Y N
Enables the compressors to run in addition to electrical heaters, heating valve or gas burner, when OAT is below OAT limit.
FRECO
Py2
FRECO differential °C 0 2 15 FRECO operating range
FRECO min. opening % 0 10 100 FRECO valve minimum opening
Py3
de-frosting on/off ON
FRECO valve opens if the antifreeze thermostat contact is activated
defrosting opening % 0 100 100
Air parts presence PA Clogged filter switch N/Y Y Possibility to activate or not the clogged filter switch, in case Defrost PB
Start delay min 0 40 120
Cumulative time when the defrost (coil) temperature is below -5°C to start the deicing.
Maximum duration min 0 10 20
The defrost ends normally when the defrost temperature exceeds 14°C, but it will also end if it lasts more than the maximum duration.
Clock presence PC Clock board presence N/Y Y
This parameter allows to activate the clock board functions when it is not factory mounted. Switching to yes when the board is absent will generate an alarm (option).
Remote controls
Digital inputs
PD
ON/OFF ID5 N/Y N Activation of the digital input which can control the unit ON/OFF. Summer/Winter ID3 N/Y N Activation of the digital input which can control the unit Summer/Winter mode.
Miscellaneous PE
ON after blackout N/Y Y Automatic restart of the unit after an electric power cut Show langage screen
at start-up
N/Y N
Allows to select if the langage selection screen appears at each unit start-up. Only
English is available for now.
Random start time N/Y Y
If the unit is not a Plan slave, it can start after a random time (60s max) after being switched ON, or after a power failure.
Supervision PF ON/OFF by supervisor N/Y N
No parameter written or read by a supervisor needs a manual activation, except the ON/OFF function because all ON/OFF functions (display, digital input, scheduling, supervisor and PLAN) are in series. The supervisor ON/OFF variable at 0 would always lead to unit OFF, even with no supervisor connected.