VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised March 2019)
, Page
36.
In order to configure the VoltMax boiler to your
BACnet management system, you must activate
the function.
The controller allows a BACnet IP or MSTP
communication.
You must then enter the;
•
BAUDRATE.
For a BACnet MS / TP
communication protocol with a
Metasys
system the default baud rate is 38400.
•
MAC ID / MS/TP address.
By default for a
BACnet MS / TP communication with a
Metasys
system, the address is 5.
•
Device instance.
To be adjusted with the
client BACnet equipment.
•
SOURCE
. Can be selected as “
LOCAL
” to
control de boiler with its controller or as
“BACnet” to control the operation parameters
with an external controller.
•
If required the following informations can also
be modified to adapt to the client controller.
DATA BIT : / PARITY /STOP BIT
The names of the BACnet variables used by the
program are listed in the tables 4.5 through 4.15
below
. Variables beginning with AV and BV
are read variables, while variables beginning
with "W" are editable
.
For more information on the BACnet protocol,
please refer to the appropriate documentation.
OCCUPATION
Setting the temperature-lowering period.
Occupation setting
This function allows the boiler water temperature
to be lowered for defined periods without having
to lower all the thermostats of the building. This
function can be activated and deactivated within
the menu
Occupation
under
Occupation mode
.
This function allows the set-point temperature to
be lowered when the boiler is within the hours
specified in the
Schedule Setting
menu. The
temperature drop (the value should be negative)
in the set-point can be changed in the
Occupation Setting
menu.
The
SCR model
allows the connection of a
contact (OCC Contact) allowing the use of an
external timer to control the
OCCUPATION
function.
Ex: When the contact (switch) is open at the OCC
terminal, then the boiler will be in temperature-
lowering mode. (Night mode) When the contact
(switch) is closed, it will be in normal occupancy
mode (Day mode).
Force
is used to force the boiler to operate
normally (day mode).
A weekly schedule can be programmed under the
Schedule setting
to modify the occupation hours
of the building.
N.B: The internal clock of the controller does not
take in account the daylight-saving time changes.
Schedule Configuration
Changing a Schedule
Use this menu to configure the building’s
occupation schedule. The schedule works on a
weekly schedule (Monday - Sunday) and allow
only 1 lowering Set point periods. The first hour
represents the start of the occupancy period and
the second hour represents the innocupancy
periods.
Ex: In the case currently displayed between 07:00
and 17:59, the set-point temperature will not be
affected. On the other hand, from 18:00 to 06:59,
the set temperature will be lowered.
When the building is not occupied for a full day,
you must enter this information as follows, so that
the stpt stay in the lowering mode.
