Change Over Hot/Cold Mode - AERMEC UFB W Serie Manual De Instrucciones E Instalación

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chimney effect, and on the other hand it makes
it possible to prevent the valve from continuously
opening and closing (it has a response time of a
few minutes), and to therefore have the water
If the thermostat uses continuous ventilation, the
operating logic of the valve is that shown in the
following figure.
VALVE
41.

CHANGE OVER HOT/COLD MODE

CHANGING THE SEASON BASED ON WATER
If the thermostat is configured for use without
a valve (dip1 OFF) or with a probe upstream of
the valve (dip2 ON), then the water temperature
detected is the temperature actually available on
Cooling
In this configuration, the left LED indications
correspond to active mode.
The ventilation is activated only if the
temperature of the water is suitable for the
Heating or Cooling mode. This helps prevent
in the terminal always circulating during normal
operation.
In COOLING mode, the thermostat control of
the valve does not coincide with that of the fan.
HEATING SETTING
VALVE
Dead Band
HEATING
SETTING
the terminal and therefore the season is forced in
Heating or Cooling based on its temperature.
The seasonal thresholds are those which also
have the dip4 meanings shown.
Ventilation
disabled
17°C
22°C
22°C
25°C
undesired cold ventilation in the winter season,
and helps control the switching on and off of all
of the terminals, based on the actual state of
the water available (centralised control of On-Off
commands and Heating-Cooling commands).
COOLING SET
COOLING
SET
Dead Band
Heating
Normal Band (dip 4 OFF)
35°C
39°C
Reduced Band (dip 4 ON)
35°C
31°C
IUFBTY 1601 - 5495900_01
This way it is possible to make better use of the
cooling capacity of the machine and make a more
accurate check of the ambient temperature.
VALVE
VALVE
30

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