Battery Operation Water + Damper - AERMEC UFB W Manuel D'utilisation Et D'installation

The "continuous minimum speed" is linked to the
position of dip switch 8 according to the table:
39.

BATTERY OPERATION WATER + DAMPER

UFB20W also provide management of the
motorised dampers in intake
This underfloor unit uses the battery combined
with the modulation of air coming from under the
floor according to two criteria:
VMF-E4 OPERATING MODE
40. BATTERY OPERATION WATER + DAMPER
If there is a shut-off valve (dip1 ON), the
position of the probe can be managed from
either upstream or downstream of the valve
(on the standard position engraved in the heat
exchanger). The substantial difference between
the two consists of managing the ventilation
differently. If the water probe is upstream of the
valve (dip2 ON) or not present, there is a heat
29 IUFBTY 1601 - 5495900_01
• Replacement: the heat exchanger (battery)
is used to condition the spaces if the
renewal air in intake does not present
temperatures suited to the setpoint chosen
by the user. The figure shows the thresholds
for enabling the operation of the motorised
damper.
AUTO/V1/V2/V3
AUX
THRESHOLDS FOR ENABLING THE BATTERY FOR AIR POST-TREATMENT
THRESHOLDS FOR ENABLING THE WATER BATTERY IN COOLING
2,0 °C
THRESHOLDS FOR ENABLING THE WATER BATTERY IN HEATING
exchanger pre-heating function that enables the
fan after 2'40" from the first valve opening.
Then the fan inhibition time is automatically
calculated and depends on how long the valve
has been closed; it can therefore vary from a
minimum of 0'00" to a maximum of 2'40". This
delayed enabling of the fan compared to the
opening of the valve is reset if the electric resistor
POSITION Continuous Minimum Speed
On
10 % of the max inverter speed
Off
20 % of the max inverter speed
MANAGEMENT OF BATTERY + DAMPER
1,0 °C
SETPOINT
1,0 °C
2,0 °C
SETPOINT
• Integration: the heat exchanger and
the renewal air modulation are used
simultaneously.
The choice of operation mode (replacement/
integration) takes place through the VMF-E4 user
interface:
REPLACEMENT
INTEGRATION
UNDERFLOOR AIR TEMPERATURE [°C]
UNDERFLOOR AIR TEMPERATURE [°C]
is enabled. This is to ensure greater user safety.
The figure provides an indication of the operating
logic of the valve if the thermostat is used with
thermostat-controlled or modulated ventilation
logic. As seen in the figure, in HEATING mode the
valve is used by exploiting the terminal's capacity
to emit heat even with the fan off (chimney
effect). On one hand, this allows use of the