AERMEC VMF-E19 Manuel D'utilisation Et D'installation page 29

Valve control logic with thermostat-controlled ventilation
HEATING SETTING
SET CALDO
100%
DEAD BAND
ZONA MORTA
Y1: 2 pipes
Y1: 2 tubi
Y2: 4 tubi Y2: 4 pipes
1.2°C
°C
1.0°C
1.8°C
Even with the VMF-MOD expansion, the ventilation control logic (thermostat-controlled, enabling, delays, forcing) remains the same as for ON/
OFF valve management.
LEGENDA
LEGENDA
Curva di funzionamento valvola ramo caldo con DIP 1 in OFF
LEGENDA
Curva di funzionamento valvola ramo caldo con DIP 1 in OFF
LEGENDA
Curva di funzionamento valvola ramo caldo con DIP 1 in ON
Curva di funzionamento valvola ramo caldo con DIP 1 in OFF
Curva di funzionamento valvola ramo caldo con DIP 1 in ON
Curva di funzionamento valvola ramo caldo con DIP 1 in OFF
Valve operating curve (heating branch) with DIP1 OFF
Curva di funzionamento valvola ramo freddo con DIP 2 in OFF
Curva di funzionamento valvola ramo caldo con DIP 1 in ON
Valve operating curve (heating branch) with DIP1 ON
Curva di funzionamento valvola ramo freddo con DIP 2 in OFF
Valve operating curve (cooling) with DIP2 OFF
Curva di funzionamento valvola ramo caldo con DIP 1 in ON
Curva di funzionamento valvola ramo freddo con DIP 2 in ON
Valve operating curve (cooling) with DIP2 ON
Curva di funzionamento valvola ramo freddo con DIP 2 in OFF
Curva di funzionamento valvola ramo freddo con DIP 2 in ON
Curva di funzionamento valvola ramo freddo con DIP 2 in OFF
Curva di funzionamento valvola ramo freddo con DIP 2 in ON
Curva di funzionamento valvola ramo freddo con DIP 2 in ON
COOLING/HEATING MODE CHANGEOVER
SEASON CHANGEOVER ON THE BASIS OF THE WATER
If the thermostat is configured to be used without a valve (dip 1 OFF) or with a probe upstream from the valve (dip 2 ON), the measured
water temperature is the one effectively available on the terminal so the season is forced to Heating or Cooling according to that
temperature. The season changeover thresholds are shown in the figure below (where you can also see the meanings of dip 4).
In this configuration, the indications of the left-hand LED correspond to the active mode (red for Heating, blue for Cooling, and blue/pink or
red/pink in the disabled area). Ventilation is only enabled if the water temperature is suitable for Heating mode or Cooling mode. This avoids
unwanted cold ventilation during the winter, and controls the activation and deactivation of all the terminals on the basis of the effective
state of the water available (centralised control of the On-Off and Heating-Cooling commands).
SEASON CHANGEOVER ON THE BASIS OF THE AIR
There are certain types of system in which the season changeover depends on the air:
• 2-pipe systems with a water probe downstream of the valve
• all 2-pipe system without a water probe
• 2-pipe systems (cooling only) + Heater (heating only)
• 2-pipe systems + Heater used for integration/replacement
• All 4-pipe systems
The season changeover takes place on the basis of the following criterion:
- Cooling mode: if the room temperature is lower than the set value and the difference is equal to the dead band (2°C or 5°C), heating mode is
activated
- Heating mode: if the room temperature is higher than the set value and the difference is equal to the dead band (2°C or 5°C), cooling mode is
activated
The dead band is defined via Dip 7 - i.e. if Dip 7 is OFF, the dead band is 5°C, whereas if Dip 7 is ON, the dead band is 2°C.
COOLING SETTING
SET FREDDO
Y1: 2/4 pipes
Y1: 2/4 tubi
0.5°C
°C
0.7°C
1.2°C
KEY
Ventilation
Vantilazione
Cooling
Freddo
disabled
disabilitata
17°C 22°C
22°C 25°C
Valve control logic with continuous ventilation
HEATING SETTING
SET CALDO
100%
Y1: 2 pipes
Y1: 2 tubi
Y2: 4 tubi Y1: 4 pipes
1.0°C
1.8°C
DIP 2
DIP 1
Heating
Caldo
35°C 39°C Normal band (Dip 4 OFF)
31°C 35°C Reduced band (Dip 4 ON)
AVMFE19LJ 2201 - 5779300_06
COOLING SETTING
SET FREDDO
ZONA MORTA DEAD BAND
Y1: 2/4 pipes
Y1: 2/4 tubi
0.7°C
1.2°C
DIP 2
DIP 2
DIP 1
DIP 2
DIP 1
DIP 2
DIP 1
DIP 1
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