Swegon WISE - Interacting Functions with the Air Handling Unit

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WISE User Manual
Interacting functions with
the air handling unit
Room temperature for communication
The aim of this function is to provide a representative temper-
ature for all selected rooms under the air handling unit. The
temperature mirrors the current room temperature better than
e.g. an individual sensor in the extract air. The function can be
used by GOLD or the BMS system to better improve the supply
air temperature by knowing the room temperature.
How does room temperature work for
communications?
The function calculates a common room temperature for all
rooms under an air handling unit. It is possible to select whether
a room is to be included in the calculation or not. There are four
dierent methods to calculate the common room temperature:
• Average value
• Lowest
• Highest
• Average value weighted
The dierence between Average value and Average value
weighted is that Average value weighted uses the room’s maxi-
mum air ow as the weighting factor.
The function works both with GOLD and other air treatment units.
In order to use another air handling unit than GOLD, the calcu-
lated temperature can be retrieved via the external protocol.
For use of GOLD, if the temperature is OK and room temperature
for communication is enabled on GOLD, the calculated room
temperature will be automatically written to GOLD.
Forwarding of operating information
from the air handling unit
The operating information from the air handling unit is commu-
nicated to the WISE system, which results in several common
benets. Signals that are transferred are Summer night cooling,
Morning heating, Filter calibration and Stop.
When the air handling unit has stopped, SuperWISE blocks all
comfort alarms, this function requires the BMS system or GOLD/
COMPACT air handling unit to forward the operating status to
the WISE system.
If the GOLD or COMPACT air handling unit is linked to the WISE
system, all alarms are transferred from the air handling unit to
SuperWISE for a complete alarm overview.
Note that GOLD air handling unit must have soware version
1.21 or newer installed to be compatible with SuperWISE.
How do the various modes work?
Morning heating
The room adopts this mode with an external signal from the
BMS system or from a GOLD air handling unit. There are sepa-
rate temperature/min. ow settings for this mode. The function
of the mode is to heat with warm air from the air handling unit.
The air ow is set to maximum and is maintained as long as
the temperature is below the cooling setpoint value, or until the
external signal stops. See the table in “Operating mode” section.
Summer night cooling
The room adopts this mode with an external signal from the
BMS system or from a GOLD air handling unit. There are sepa-
rate temperature/min. ow settings for this mode. The function
of the mode is to cool with cold air from the air handling unit.
The air ow is set to maximum and is maintained as long as the
temperature is above the heating setpoint value, or until the
external signal stops. See the table in “Operating mode” section.
Filter calibration
Filter calibration is a function used by a connected air handling
unit when the air handling unit calibrates the pressure drop
across an air lter. During lter calibration the air handling unit
delivers a high air ow to give a correct pressure drop reading
from the air handling unit lter.
• The WISE system opens all dampers on zone and room levels
during the lter calibration cycle.
• Filter calibration is not a separate mode. The rooms continue
to be in their ordinary operating mode during lter calibra-
tion, but with a fully open damper.
• The alarm is suppressed during lter calibration.
Stop
The room adopts this mode with an external signal from the
BMS system or from a GOLD or COMPACT air handling unit.
The stop symbol is shown on room level to indicate that the air
handling unit is switched o. Alarms as a consequence of the air
handling unit being switched o are ignored. All dampers switch
to a specic given mode, preset to 50% degree of opening, and
stop temporarily to regulate the ow.