Camus Hydronics DRH300 Installation, Operation And Service Manual page 35

4-20mA/ 2-10Vdc Setpoint Operation (Standalone)
Description
•
Boiler operates with variable
setpoint determined by 4-
20mA incoming signal
•
Modulates on boiler inlet
sensor (default)
•
Heat demand is generated
when Remote Operator is
closed and 4-20mA or 2-
10Vdc signal is present.
Electrical Connection(s)
1) Place both toggle switches in LOCAL
2) Press
3) Press [CH – Central Heat Configuration]
4) Press the
5) Select Setpoint Source = S2 (J8-6) 4-20mA
6) Select 4mA water temperature
7) Select 20mA water temperature
8) Place toggle switch to REMOTE for remote operation (if required)
13) Press [Show Line] to confirm reset curve
14) Press Sensor Configuration
15) Selet S5 (J8-11) sensor: 10K NTC single non-
safety
16) Select Outdoor temperature source =
EnviraCOM outdoor sensor
17) Place toggle switch to REMOTE for remote
enable operation (if required)
Programming Instructions
and
to arrive at Setpoint
29