___________________________________________________________________________ 24NT 1965 A - 03/2019
The night-time ventilation function can only begin on summer nights and when conditions allow.
Note.
The night-time ventilation function is deactivated when the following functions are used:
•
DCV sensor control (PF01=3)
•
Recirculation casing fan (PG12=1)
To use this function, the outdoor and return air temperature sensors must be activated and operational. If one of the
two sensors is in error mode, the function will be deactivated. If the RTC system clock is incorrect, this function is
deactivated.
7.6
MORNING START
This function enables you to boost the heating at the start of the COMFORT programme slot, (activation of parameter
PF32
), shifting the flows (parameter
PF33
) for a boost slot of 10 minutes (parameter
PF34
by default).
Note.
If the RTC system clock is incorrect, this function is deactivated.
7.7
OFFSETTING THE AIR FLOW RATE
It is possible to adapt the air flow rates for each speed by activating parameter
PF39.
The shifting value for the air flow
rate can be configured with
PF40
It is possible to adapt the air flow rates for each speed so that the network's air flows can be changed without falling
below speed 1. This mode is activated via parameter
PF39
and offset speed
PF40
. The values for selection are: -2 ; -1 ;
0 ; +1 ; +2. The minimum speed that can be configured is V1.
7.8
FREECOOLING/FREEHEATING
When conditions outdoors are good, the control allows you to open the exchanger by-pass damper to prevent heating
air that is already sufficiently warm (parameter
PG08
). This function uses the fresh air temperature sensor (T3) and
the return air temperature sensor (T2). The machine switches to FREECOOLING when the conditions are met
The function activates, causing the exchanger by-pass damper to open.
Note:
To use this function, the temperature sensors must be activated and operational. If one of the two sensors has
a fault, the function will be deactivated.
When freecooling mode is activated, the by-pass valve is open. As a result, the installation operates entirely with fresh
air and the exchanger does not allow energy recovery.
7.9
CHANGE OF SEASON
In Change-over configuration (PG=02), it is possible to directly configure the seasonal control via parameter PH09,
based on the conditions
•
0: via keypad (change is possible in the user menu)
•
1: Blocking of summer mode
•
2: Blocking of winter mode
•
3: Via DI control
COMFORT
ECONOMY
PF34
Time
Speed
PT01
