67
Parameter setting
Sensor Vari KNX 3L-TH-D
• Status: 19.10.2016 • Errors excepted. Subject to technical changes.
for the initial start-up, as the factory settings are always used until the first communi-
cation (setting via objects is ignored).
During initial commissioning, a
setpoint value
must be defined which is valid until
the first communication of a new setpoint value. For units which have already been ta-
ken into service, the last communicated setpoint value can be used. Basically, an air
humidity range is specified in which the setpoint value can be changed (
object value
limit
).
Enter, how the setpoint value will be received from the bus. Basically, a new value can
be received, or simply a command to increase or decrease.
A set setpoint value will be retained until a new value or a change is transferred. The
current value is saved in EEPROM, so that it is retained in the event of a power supply
failure and will be available once the power supply is restored.
In "Humidification and dehumidification" control mode, a dead zone is specified so that
no direct changeover switching between humidification and dehumidification is pos-
sible.
Humidification starts, when the relative air humidity is lower or equal to the setpoint
value - dead zone value.
Dehumidification and/or humidification
Depending on the control mode, settings sections for humidification and dehumidifi-
cation appear (level 1/2 ).
Maintain the
setpoint received via communication
object
• never
• after power supply restoration
• after power supply restoration and
programming
Start setpoint in %
valid until first communication
(not upon saving the setpoint value after
programming)
0 … 100; 50
Object value limit (min.) in %
0…100; 30
Object value limit (max.) in %
0…100; 70
Type of setpoint value change
Absolute value • Increase/decrease
Increment
(upon increase/decrease change)
1% • 2% • 3% • 5% • 10%
Dead zone between humidification and
dehumidification in %
(only if both humidification and dehumidifi-
cation are used)
0…50; 10
Summary of Contents for Vari KNX 3L-TH-D
Page 5: ...4 Clarification of signs ...
