Stulz S-Klima C7000 User Manual page 24

Actual value
S
fix
dS
S
var
5 min.
24
Config
It is possible to have a standby unit start when an adjustable positive temperature dif-
ference to the air temperature setpoint is reached. This temperature difference can be
adjusted by the "Load start" parameter
➌
When the temperature difference is reached, the unit starts as long as it is defined as a
➍
➎
standby unit. The sequencing is not influenced by this.
➏
In order to use this function, a zone must be defined.
You can determine an integral part
discrepancy which is characteristic for P-controllers. In this case, the variable setpoint
S , which is recalculated every 5 minutes according to an integration interval, is deci-
var
sive for the control. This variable setpoint is created by adding a setpoint alteration dS
➎
to the previous setpoint.
➏
The values for the integration factor can be between 0 and 10 %. In principle, you should
➐
➑
start at a low value in order to prevent the system from oscillating because of a value that
is too large. 2 % is recommended and is increased slowly until the system is regulated.
You can adjust the following for the "Room temperature too low
air temperature too low
a. Common alarm actuation (1 = yes).
b. Alarm priority
S = S + dS
var var
n+1 n
dS = (S - Actual value) x Integration factor
fix
s represents the fixed setpoint that is
fix
set in the Config/Values/Air/Tempera-
ture menu.
Time
A standby unit can be started when an adjustable negative humidity difference to the air
humidity setpoint is reached. This humidity difference can be adjusted using the "Load
start" parameter ➌. The adjustment 0.0 % deactivates this function.
➌
➍
A standby unit can be also started when an adjustable positive humidity difference to
the air humidity setpoint is reached. This humidity difference can be adjusted using the
"Dehumidification load start" parameter ➍.
When the humidity difference is reached, the unit starts as long as it is defined as a
standby unit. The sequencing is not influenced by this.
You can adjust the following for the "Room humidity too low
➎
air humidity too low
➏
a. Common alarm actuation (1 = yes).
➐
➑
b. Alarm priority
Values
Air/temperature
➌ . The adjustment 0.0K deselects this function.
for the air temperature control to avoid a control
➍
➐ /too high ➑ " limit value alarms:
with
Air/humidity
➐ /too high ➑ " limit value alarms:
BA C7000 for EC Tower | EN | 01-2019 | 1000755
➎ /too high ➏ " and "Supply
➎ /too high ➏ " and "Supply