Strebel S-CB+ Series, Руководство по установке, эксплуатации и техническому обслуживанию

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S-CB
+
Boiler Range Manual
81
11.2.2 R
OOM THERMOSTAT ON
/
OFF
A room thermostat with a fixed set point and using an ON/OFF control can be connected to the boiler (Connections
13-14). Changing the flow temperature set point and activation of a timer program can be done by this room ther-
mostat or by programming the boiler settings. See chapter 10.10
11.2.3 R
OOM THERMOSTAT
OPEN-THERM
An RC Open Therm controller can be connected to the boiler for temperature reading(s) and remote programming
(connections 13-14).
11.2.4 O
UTDOOR TEMPERATURE RELATED FLOW CONTROL
The flow temperature can be calculated by using the measured outdoor temperature for controlling the boiler. See
for detailed information § 10.11.
11.2.5 0-10 V
DC REMOTE FLOW TEMPERATURE SET POINT
The flow temperature is controlled by connecting an external 0-10 Vdc signal to the boiler (connections 15-16).
P5 BB Analogue input config (0=off 1=temperature 2=power) (display D1)
This parameter must be set at "1" so the supplied 0-10 Vdc signal will control the temperature set point.
Possible settings are:
0 =
0-10 V control off
1 = 0-10 V temperature set point control active
2 = 0-10 V burner input control active
P5 AI Minimum temperature 0-10V input (display D2)
The standard starting temperature of the heat demand, when the minimum voltage signal is sent to the boiler.
The factory settings for all heating applications are working fine and it is therefore advised not to change these
settings. Always consult the manufacturer for advice if parameter changes are needed.
See also the following graph for the relation between the temperature and the control signal
0-10 Vdc control signal
tem
p
erature s
ett
ing
°C
P2GB off P2GA on P2GC max.
P6BA max. temperature set point
e.g. 90°C
P5AI min. temperature set point
e.g. 20°C (default)