31
GB
6795773_01
The presence of the VMF-ACS accessory in the system is the
fundamental requirement to allow production of domestic hot
water. This parameter specifi es whether this accessory is present
in the system; to set this value, it is necessary to:
(1) Enter modifi cation mode by pressing the
C
key; after this
key has been pressed, the current setting will be highlighted.
(2) Press the
A
or
B
key to modify the setting; the settings
of this function can be:
• DHW (VMF-ACS accessory present);
• NO DHW (VMF-ACS accessory not present).
(3) Press the
C
key to confi rm the value entered; once this
key has been pressed, the current setting will be highlighted
normally, thus indicating that the modifi cation procedure has
concluded.
After the data has been entered, it will be possible to:
- Pass on to the following window by pressing the
B
key.
- Go back to the previous window by pressing the
A
key.
- Press the
D
key to return to the selection of the menus.
• Set the presence of the VMF-ACS accessory module
In the proposed system example, the
value of this parameter is DHW, since the
system is provided with the production of
domestic hot water, and the consequent
installation of the VMF-ACS accessory.
This parameter specifi es whether the system allows simultaneous
activation of chiller loads (compressor plus possible
supplementary electric resistance inside the chiller) and those
linked to domestic hot water (electric resistance in DHW storage
tank); to set this value it is necessary to:
(1) Enter modifi cation mode by pressing the
C
key; after this
key has been pressed, the current setting will be highlighted.
(2) Press the
A
or
B
key to modify the setting; the settings
of this function can be:
- ON (simultaneous loads allowed);
- OFF (simultaneous loads denied).
(3) Press the
C
key to confi rm the value entered; once this
key has been pressed, the current setting will be highlighted
normally, thus indicating that the modifi cation procedure has
concluded.
After the data has been entered, it will be possible to:
- Pass on to the following window by pressing the
B
key.
- Go back to the previous window by pressing the
A
key.
- Press the
D
key to return to the selection of the menus.
• Set management of simultaneous loads
The setting of this parameter depends
on the type of electric system installed
in the plant; should the sum of the loads
exceed the maximum limit set by the
electric system, simultaneous loads
must be avoided; in the example system,
simultaneous loads will be avoided since
it is assumed to be powered by a normal
domestic electrical system.
A
B
C
D
Qualification of load
ESC
OFF
A
B
C
D
Sanitary water
ESC
DHW
