Operating Principle - AERMEC GLLI10N Manual De Uso

CASSETTE LOCAL NETWORK
The VMF-FCL thermostat has been de-
signed to communicate with all thermo-
stats of the VMF family through a dedicat-
ed serial based on standard TTL logic and
low throughput. This serial communica-
tion is essential for the exchange of in-
formation within small fan coil networks.
This is in fact a network comprising no
more than 6 thermostats with a maxi-
mum length of about 30 meters. It was
designed, in fact, for small areas where
the fan coils (more than one) need to be
controlled from a single control point.
More specifi cally, this network always
contains a Master (to which a user inter-
face VMF-E4 is connected) that controls
the operation of the Slaves connected to
it, according to the settings made on its
user interface.

OPERATING PRINCIPLE

The fan coil master, or rather the one
with the VMF-E4 user interface con-
nected, cyclically transmits the follow-
ing information subsequently setting
them on the slave units.
- Regulation Setpoint
- Operating mode (OFF, AUTO, V1, V2,
V3, AUX) (on the On/Off machines)
- Operating season
Therefore the slave fan coils can not
operate (except in particular cases)
according to settings different from
those dictated by the master.
AMBIENT PROBE: the ambient control
probe is not needed on slave fan coils be-
cause these can use the control probe of
the master. However, if you want to avoid
having micro-climates, it can be installed
on the slaves that will then adjust with
the respective probe. In particular cases
where the ambient probe on the master
is faulty, the slave without probe will op-
erate in emergency mode (similar to the
master), while the slaves with ambient
probe will continue to operate normally.
WATER PROBE: the water temperature
probe can be installed or not on the vari-
ous fan coils of the TTL network. The fan
coils with probe will use this for foreseen
minimum and maximum values control,
while the ventilation will always be ena-
bled on the fan coils without water probe.
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AGLLI10/20NFJ 07/11_4528572_00
FCLI
SLAVE
EXTERNAL CONTACT INPUT: this digital
input is inhibited on all slave fan coils
while it is enabled on the master only. If
the master input is closed, all the slave
fan coils of the zone are switched off.
PRESENCE SENSOR INPUT: the presence
sensor digital input is only active on the
master fan coil
ANTI-FREEZE FUNCTION: the anti-
freeze mode is the only case in which
a slave that is in this status can operate
according to settings are not provided by
the master.
LUNGHEZZA MAX.30 (m)
FCLI
FCLI
SLAVE
MASTER
VMF-E4