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iO
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2.5. FAN
The Fan window allows selecting how the fan control of the A/C machine will be performed.
Figure 3.4. Fan window
Fan restriction based on the no. of open grilles:
if this parameter is enabled ("Yes"), it
will be possible to limit the fan speed of the A/C unit according to the number of open grilles.
The levels that may be established are:
“Only Medium”, “Only Minimum” or “Medium and
Minimum
”. Depending on the selected option, one of the following boxes will be shown (or
both,
if “Medium and Minimum” is selected).
Force Minimum Fan under:
sets the minimum number of grilles that must be open
before it is permitted to leave the minimum fan level (object "A/C Unit - Fan Status" will
reflect the current fan level; see Table 3.1).
Force Medium Fan under:
sets the minimum number of grilles that must be open
before it is permitted to commute from the medium fan level to the maximum fan level
(object "A/C Unit - Fan Status" will reflect the current fan level; see Table 3.1).
Initial Speed
Percentage
Interpolated Speed Percentage
Level
0%
0%
Auto
1-33%
33%
Minimum
34-66%
66%
Medium
67-100%
100%
Maximum
Table 3.1. Fan speed percentages
Step control:
the selection of this option ("Yes") enables the 1-bit object "A/C Unit - Fan
Step", which allows increasing (sending the value "1") or decreasing (value "0") the fan speed
in one level (for example, under the minimum level of speed, if the value "1" is sent via this fan
step object, the speed will become medium).
