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Control (HMI-SG)
Local HMI-SG controller
HMI-SG controller enables the following to be reviewed:
n
Room (outlet) temperature
n
Current air-conditioning process (cooling, heat recovery,
mixing or heating)
n
Temperature mode (Economy, Comfort)
n
Current system time and day of the week
n
Fan output stage
Device description
Function Buttons
The room unit consists of the face plate and back cover,
which can be separated. There are 8 function buttons on the
controller's face plate.
Table 3 – Display description
Display
Icon
I1
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
I12
I13
I14
I15
I16
22
The HMI-SG (Human Machine Inter-
face) enables full control and moni-
toring of the equipment's operating
parameters. The air-handling unit
parameters can be accessed through
the List of Data Points, which is pro-
tected by the password applicable
for the corresponding access level.
Description
Indication of room temperature
or correction of the required
temperature in °C or °F
Room temperature in °C
(increment 0.1 °C)
Room temperature in °F
(increment 0.5 °F)
Required temperature
correction in °C or °F
Time
Fan output (speed) stage
Days of the week
On/Off
Mode Auto
Temperature mode Economy
Temperature mode Comfort
Cooling sequence
Heating sequence
Humidification
Fan Speed Compensation
Mode Presence
(this mode is not used as standard)
Recovery and mixing sequences
– energy savings
Alarm
Data point editing
Figure 19 – HMI-SG controller
Table 4 – Function Buttons description
No.
Icon
Name
T1
Power
Air-handling unit start or stop
By long pressing the button, the
T2
Presence
controller can be unlocked/locked
to prevent unauthorized access.
The time schedule button: by hold-
ing this button, you can set the date;
T3
Program
by pressing this button, you can set
the desired temperature mode tim-
ing and required fan output stage
Temperature correction – pre-set depend-
T4
Minus
ing on the selected temperature mode
Temperature correction – pre-set depend-
T5
Plus
ing on the selected temperature mode
Confirmation of the date or time schedule
settings
By short pressing the button, the
following values are displayed:
- Supply temperature (Sply)
- Outdoor temperature (Out)
- Return water temperature (Htr)
T6
OK
- Return temperature (Rtrn)
- Room temperature (Room)
By long pressing the button,
the following values are displayed:
- Comfort temperature mode (heating)
- Economy temperature mode (heating)
- Comfort temperature mode (cooling)
- Economy temperature mode (cooling)
Fan output (speed) stage setting; each but-
ton cyclically increases the setting by one
T7
Fan
stage. The current output stage is displayed
on the display
Temperature mode selection (Auto,
Comfort and Economy). By pressing the
T8
Mode
button, the modes can be cycled. The
currently selected temperature mode
is indicated by an icon on the display
Operating conditions
Degree of protection: IP 30 Permissible ambient temperature:
5 °C to 40 °C Relative humidity < 85 %
Warning:
To avoid unintentional unit start-up, the master switch must be
switched off and locked when repairing the VCS unit.
Function description
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