AERMEC VMF-E19 Manuel D'utilisation Et D'installation page 32

Attention: even if the water probe is upstream of the valve, the season changeover is based on the air temperature.
With this configuration, the heater can have two different types of operation in heating mode, depending on how the thermostat
works:
OPERATING MODE
AUTO
V1
V2
V3
AUX
COLD PLASMA AIR PURIFIER AND GERMICIDAL LAMP
If the accessory configured (via dip 5 and dip 6) is the air purifier (Cold Plasma/bactericidal lamp), the "Aux" position is used to purify
the air regardless of the thermostat operation requests. This type of accessory is activated even if the operating speed selector is
not on "Aux". To run the purifying device at minimum speed regardless of the thermostat requests, use the "Aux" position; in this
way, the thermostat will always activate ventilation, closing the shut-off device that you are advised to use alongside this function
to avoid any deterioration of the environment (overheating or undercooling).
The Cold Plasma device must be assembled on output Y2, in place of the second valve. Configure the thermostat to manage the
Cold Plasma by setting dip 5 = OFF and dip 6 = ON. The Cold Plasma is powered simultaneously with the ventilation function, in
both heating and cooling mode.
As described above, the Cold Plasma device is used in the "Aux" position for purifying only, whereas in the other positions (except
OFF) it's activated on the basis of the thermostat operation requests. In the case of continuous ventilation (Dip 3 ON), the Cold
Plasma remains active - along with ventilation - even when the thermostat request has been fulfilled.
COMFORT FUNCTION
In centralised systems with fan coils connected in a network, their setpoints are defined by a central unit. The user may increase or
decrease the value as indicated in the table below.
To change the value, focusing on the current interfaces, use the setpoint adjustment knob as shown in the figures:
Global setpoint
Variation of
Variation of
0.5°C
MIN
- 6°C
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AVMFE19LJ 2201 - 5779300_06
The electric heater intervenes if there is a thermostat operation request and the water temperature is sufficiently
low (as shown in the figure "Season changeover (water side) and Ventilation enabling")
0.1°C
Variation of
0.5°C
MAX
+ 6°C
HEATER ACTIVATION
The heater is activated as the sole heating source
Variation of
0.2°C
MIN
Global setpoint
Variation of
0.1°C
MAX
- 3°C + 3°C
Variation of
0.2°C