VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised March 2019)
, Page
31.
HEATING
MODE W1
Boiler heating mode W1
configuration according to
the type of application
HEATING
MODE
W2/DHW
Boiler heating mode W2 or
DHW configuration according
to the type of application
CAPACITY
LIMITING
Capacity limiting mode
configuration
AUXILIARY
BOILER
Auxiliary boiler mode
configuration (if needed)
LIMIT
SETTING
Configuration of the boiler
operating limits
ALARM
Configuration of the
alarms
COMMUNICATION
Configuration of the
boiler communication
parameters (Web,
Email, Bacnet)
OCCUPATION
Configuration of the
occupation parameter
mode
MODE BOOST
Enable Boost mode
WARM WEATHER
SHUTD.
Enable warm weather
shut-down function
CHANGE
PASSWORD
Changing the
Installer
password
HEATING MODE W1
Selection of the operating mode
In this menu you must select an operating mode
for selecting the desired setpoint temperature
depending on the application. A heat demand or
a demand must be present on W1 and/or
W2/DHW so that the boiler can heat up.
Otherwise the boiler will indicate “---“
During a heat demand, the boiler activates
(depending on a PID curve) the number of stages
required in sequence so that the boiler output
temperature is maintained at the approximate
set-point temperature.
Here is the list of W1 heating modes:
FIXED
Fixed boiler set-point
DDC 0-
10 VDC
Modulation of the boiler set-point
using a 0-10VDC signal
OUTD
RESET
Modulation of the boiler set-point
using the outdoor temperature
STOP
No heating demand on W1
Fixe
This mode is used for an installation where it is
desired to have a fixed set-point temperature.
If the boiler is thermostat-controlled with a heat
demand signal on W1, the boiler uses the
corresponding set-point (
T. Set-point W1
) as the
supply temperature.
DDC 0-10 VDC
This operating mode allows modulating the boiler
set-point temperature according to a 0-10VDC
signal applied the terminal
0-10VDC
and bornier
0-10Vdc G
et
0-10Vdc T
, produced by an
external
controller
(Ex:
Building
Energy
Management Controller).
The details of the parameters in this mode are
presented in
Section 4.6.3
.
