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15.3. NETWORK SETTINGS
The VMF-E0R/VMF-E18R thermostats are designed to
communicate with the remote control panel of the
same VMF-E4 family (mandatory accessory).
The serial communications protocol is Modbus and
a TTL network, which is used for the exchange of
information within a small network of fan coil units
between one and six units, of which one is Master and
a maximum of five are Slaves.
The Master fan coil unit is the one connected to the
VMF-E4 control panel, and sets the following points:
•
Control setpoint.
•
Operating mode.
Off: Units off.
AUTO: The thermostat maintains the tem-
perature setpoint by changing the fan speed
in Automatic Mode, as a function of the space
temperature relative to the setpoint.
V1: The thermostat maintains the temperature
setpoint by On-Off cycles only using the Mini-
mum Speed of the fan.
V2: The thermostat maintains the tempera-
ture setpoint by On-Off cycles only using the
Medium Speed of the fan.
V3: The thermostat maintains the temperature
setpoint by On-Off cycles only using the Maxi-
mum Speed of the fan.
AUX: The thermostat forces into heating
mode and maintains the temperature setpoint
through the use of radiant heating and convec-
tive heating from the heat exchanger, inhibiting
the ventilation.
•
Operating season.
•
Ambient sensor.
The Slave fan coil units cannot operate with different
settings to the Master's.
16. INSTALLATION OF THE FILTER
• Installation
−The unit; with the tip of a tool, pry the upper
hooks of the grill.
−Insert the filter into the internal part of the
intake grille.
−Reassemble the suction grille to the unit; first
insert the lower hooks into the casing then
insert the upper hooks.
−Easily removable, it is supplied in a sealed pack-
age, to be opened only at the time of use.
• Maintenance
Clean frequently. Remove any accumulated
dust with a vacuum cleaner. Use of water or
detergents greatly
20
STAND ALONE application:
ZONE CONTROLLED application
TTL Line
L= max 30 mt.
WARNING:
For further information on the
use and installation of the VMF-E4
control panel refer to the acces-
sory documentation
IUL_R-UL_RIPI. 2307-C6976485_00
Omnia UL_R/UL_RI 27-37
.
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