Temperature Control - Swegon WISE User Manual

Temperature control

Why regulate the temperature?
In order to reach and maintain the required temperature in a
room, for good comfort and to avoid negative effects on health
that an incorrect indoor temperature can result in.
How is temperature regulated?
In order to achieve the required temperature, the temperature
is measured in the room with one or more temperature sensors
and either regulates the room to an average value of several
sensors' measured temperatures, or to the highest/lowest
measured temperature. Note that the majority of Swegon's
room sensors can provide a room temperature if required.
Individual temperature sensors can if required, e.g. when they
are improperly located and do not give a representative value,
be excluded from the calculation of the room's average value.
This is made under Settings for the relevant temperature sensor
by setting the Room temperature mode to Reference.
Operating case
If the temperature is outside of the limit values then heating or
cooling needs to be supplied. Heating and cooling is supplied to
a room by increasing the supply air flow of warm or cold air, or
by enabling the heating or cooling circuits in different climate
products. The heating/cooling signal can, e.g. result in increased
air flow if there is a cooling requirement, or open a heating actu-
ator if heating needs to be supplied.
Adjustable room parameters in SuperWISE
Section Description
Temperature setpoint
*
value
Temperature offset
*
cooling mode
Temperature offset
*
heating instance
Temperature,
Temperature
operating mode
Occupancy Forced occupancy
sensor time RTA
Temperature offset
Temperature
time***
Temperature Temperature offset*** 0
Air temperature
Temperature
difference
Temperature
Temperature
difference for alarm
Changeover Hysteresis
Supply flow
Changeover
temperature
*Set separately for the sections Occupancy, Unoccupied, Holiday, Summer night cooling and Morning heating.
**Standard value applies for Occupancy.
***Only applies to Occupancy.
Standard
Min. Max.
value
22** 0 100
1** 0.5 10
-1** -10 -0.5
Average value Lowest Highest
0 0 1200
480 0 1200
-10 10
1 0 10
2.0 1 20
2.5 0 100
0 0 100
It is even possible to control actuators in sequence, for example,
if cooling is to be realized by first increasing the air flow before
the cooling actuator is opened. Different sequences can be set
by service personnel to obtain different sequence solutions.
In many cases the supply air temperature is measured to deter-
mine whether the increased flow will have the desired effect
or not. If the supply air is warmer than the room temperature,
when the temperature regulator needs to cool, the minimum
flow will be obtained for a cooling requirement. Different mini-
mum flows are supplied depending on the room's mode, e.g.
minimum flow occupancy.
Set point adjustment
WISE RTA or the Swegon Inside app can be used to allow those
persons in the premises to influence the temperature setpoint.
The temperature setpoint is adjusted with the help of the touch
buttons when WISE RTA is in active mode, which is enabled by
pressing one of the touch buttons. After a configurable number
of seconds WISE RTA returns to deactivated mode. If the product
is battery powered, the display dims in deactivated mode, while
for the 24V-fed products it is possible to configure whether it
should continue to be lit or be dimmed in deactivated mode.
In the Swegon Inside app, the user can set the temperature
setpoint in the same way as via WISE RTA. The user can also
activate Eco mode, which automatically controls the temper-
ature setpoint based on the outdoor temperature within the
permitted temperature setpoint range.
Lowest user level
Unit
(read/write)
Celsius Local/Local Temperature setpoint value of the current operating case.
Number of degrees above the set "Temperature setpoint value"
Celsius Local/Local
that is permitted before cooling of the room occurs.
Number of degrees below the set "Temperature setpoint value"
Celsius Local/Local
that is permitted before heating of the room occurs.
Installation/ Selection that determines how the measured room temperature is
-
Installation to be presented when there are several room temperature sensors.
Timer that forces the room into occupancy during the set time
Installation/
Minutes after a setpoint offset has been made. After the set time, setpoint
Installation
offset for non-occupancy is reset.
Timer for how long the setpoint offset shall apply before it is reset,
Minutes Local/Local regardless of whether there is occupancy or not.
0 = Never rest.
The number of degrees above/below the set setpoint value at
Celsius Local/Installation
which an offset should occur.
Permitted supply air temperature to increase the flow in cooling
mode respective heating instance. Consequently, a difference
Installation/
Celsius that is 1 means that the supply air temperature must be one
Installation
degree lower than the room temperature so that a flow increase
occurs for cooling mode.
Limit for activation of the comfort alarm for temperature devia-
tions from the room set point value. The 2 °C setting means that
Installation/
the comfort alarm is given when the room temperature drops
Celsius
Installation
below the heating set point value by 2 °C or when the room tem-
perature exceeds the cooling set point value by 2° C.
Minimum permitted difference between the water's supply flow
Installation/
Celsius temperature and the room's temperature to start heating and
Installation
cooling sequences.
The temperature of the water for the changeover function when
Celsius Local/Installation there is no measured value. Can be written via SuperWISE or the
BMS system.
20220323 Swegon reserves the right to alter specifications.
WISE User Manual
Function
25