VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised August 2017)
, Page
43.
4.6.3 MODE : DDC 0-10VDC
Modulation of the set-point temperature as a function of 0-10 VDC
(Available only on SCR model)
This operating mode allows to modulate the set-point temperature of
the water outlet of the boiler according to a 0-10VDC signal applied
to the terminal block
0-10Vdc T
and
0-10Vdc G
from an external
controller (Ex: An energy management software).
A heat demand (closed contact W1 and / or W2-DHW) must be
present so that the boiler can heat up.
Figure 17 : Mode DDC 0-10 VDC
Table 11 : Specific parameters in DDC 0-10 VDC
Display
BACnet variable
Description
Parameters
Default
T. STPT 0-10VDC
AV_TBoilerSTPTCalculatedV
This variable represents the set-point temperature
based on the voltage of the building control system.
0
C or
0
F
---
STPT at Min Volt
WP_STPTatMinRemote010V
Set-point of the boiler temperature corresponding to
the voltage level of
Min Voltage
.
0
C or
0
F
80
0
F
STPT at Max Volt
WP_STPTatMaxRemote010V
Set-point of the boiler temperature corresponding to
the voltage level of
Max Voltage
.
0
C or
0
F
140
0
F
Actual voltage
AV_Remote010VSTPT
Voltage emitted by the external controller in real
time
0-10 V
---
Max Voltage
WP_MinRemoteVSTPT
The maximum voltage that the external controller
can send
0-10 V
10
Min Voltage
WP_MaxRemoteVSTPT
The minimum voltage that the external controller
can send
0-10 V
0