AERMEC MULTI CONTROL User Manual

56
GB
4598010_00
The fourth window of the PLANT SETUP allows the user to
set the logic with which the units are managed; this window
displays the following information:
- Unit management logic (
1
): indicates which management
logic is currently set for the system; the management logics
can be:
- FREE:
With the “FREE” control, the units are managed independently;
the following are determined for each one:
• Enabling according to the plant.
• Operating setting (fi xed or with compensation).
• Unit diagnostics.
In this mode, the units are not subject to be switched on/off
according to the load, but are controlled independently by
their own thermostat; one example of this type of control are
“4-pipe” systems (simultaneous generation of hot and cold
water).
- LOAD:
With the “LOAD” control, the units are managed according
to the operating season and to the actual load demand
determined by analysing the thermostats of the units actually
on; the following are determined for each one:
• Enabling according to the plant.
• Enabling according to the operating season.
• Switch-on depending on the load demands and according
to the sequence implemented by the type of rotation.
• Operating setting (fi xed or with compensation).
• Unit diagnostics.
To correctly confi gure operation of the units in this mode, the
following parameters must be set:
• On/Off delay.
• On/Off power.
- DELTA T:
With the “DELTA T” control, the units are managed according
to the operating season and the outlet and inlet temperature
of the group. The VMF-CRP1 expansion module must be
inserted to be able to use this control method. In this mode,
the following are determined for each unit:
• Enabling according to the plant.
• Enabling according to the operating season.
• Switch-on depending on the temperature trend of the water
produced by the group and according to the sequence
implemented by the type of rotation.
• Operating setting (fi xed or with compensation).
• Unit diagnostics.
As mentioned previously, in this control mode the installer
must set the type of system appropriately (single/double ring);
this parameter is fundamental to correctly control the outdoor
units. In fact for double ring systems, and more precisely
for all systems in which water in the secondary circuit is
circulated by an independent pump, it is guaranteed that the
SUW probe appropriately reads the liquid temperature thus
ensuring correct functioning of the control (activation of the
units); in these types of installations, when the load has been
satisfi ed, all the units can therefore be switched off (even the
pumps); for single ring systems on the other hand, the water
fl ow (with consequent reading of the SUW probe) must be
guaranteed by the circulating pumps in the units; in these
installations, even when the load has been satisfi ed, at least
one unit must always operate.
To correctly confi gure operation of the units in this mode, the
following parameters must be set:
• On/Off delay.
• Temperature On.
• Off Temperature.
• Type of plant.
• Setting the control logic of the units (Password 303):
!
The DELTA T mode is guaranteed if the following
conditions are respected:
• Presence of VMF CRP 1.
• SUW probe on.
• SIW probe on.
If one of these requirements is missing, the
system will change to FREE mode.
A
B
C
ESC
E
Regulation type
DELTA T
1
TYP
D
Regulation type
DELTA T
2

AERMEC MULTI CONTROL Specifications

General

Brand	AERMEC
Model	MULTI CONTROL
Category	Control Panel
Language	English