ZoningBOX 6 / ZoningBOX 4
Technical Support:
19
Individual Modes
: enables the
“
[Unit x] Cool Mode
”, “
[Unit x] Heat Mode
”,
“[Unit x] Fan Mode
” and “
[Unit x] Dry Mode
” one-bit objects, as well as their
corresponding status objects.
Simplified Mode: enable
s the “[Unit x] Simplified Mode” and “[Unit x]
Simplified Mode (Status)” one-bit objects.
Please refer to the previous pages for the values accepted or sent by these objects.
2.2.4
FAN
ZoningBOX can handle
two or three different fan speeds
, which is set in parameters
for each HVAC unit. Fan control can be settled as automatic control or manual control.
Automatic control
, the fan speed is calculated depending on number of in
demand zones and a ponderation factor for each zone.
Manual control
, the user can directly take part in the selection of the desired
speed through a set of communication objects of different types.
When both control modes are allowed, an object is provided to switch from one mode
to the other.
Regarding the
manual control
, the communication objects that permit commuting the
fan speed are of the following types and, in any case, are conditioned by the number of
fan speeds allowed:
One-bit objects (one per speed)
, which activate a particular speed level on
the reception of the value “1”.
Step-control objects
: one-bit objects for increasing or decreasing the speed
level sequentially, either
cyclically
(a further step once reaching the
maximum level activates the minimum level again) or not.
Figure 17.
Non-cyclic step control
Speed 1
(Minimum)
Speed 2
Speed N
(Maximum)
1
0
1
0
1
0
…………
