VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised March 2019)
, Page
47.
SCHEDULE MODE
Power can be modulated according to a fixed schedule. This can be programmed in the
Schedule Setting
menu.
Display
BACnet variable
Instance
Tag
Description
Parameters
Default
Current
authorized
max power
(%)
AV_CapLimitPrc
54
8388662
The value of power (%) calculated based on the
current and the boiler’s nominal operating voltage
0 to maximum
rated power (%)
---
Cap In
Schedule
WP_CapLimitDay
Mode
41
8388649
Power limitation when the boiler internal clock is
within the power limitation schedule.
0 to maximum
rated power
---
Cap Out
Schedule
WP_CapLimitNig
htMode
42
8388650
Power limitation when the boiler internal clock is
outside the power limitation schedule.
0 to maximum
rated power
---
Schedule
---
Configuring the boiler power limitation schedule. In
order to operate correctly, you must first adjust the
internal boiler clock in the
Clock Setting
menu.
---
---
AUXILIARY BOILER SETTINGS
(Variables beginning with AV and BV are read variables, while variables beginning with "W" are editable)
(Only available on SCR model)
The system allows control of an auxiliary boiler to the system. The different configuration options are shown below.
In order for the boiler to start, two conditions must be met:
The water outlet temperature of the Voltmax boiler must be below the start-up
temperature Aux.
(
T. Out Boiler
< (
T Set-point
-
Delta T. Aux Start
)
The water outlet temperature of the Voltmax boiler must be below the start-up
temperature Aux. for a period of X minutes (
Start Delay Aux
), after the Voltmax
boiler is at 100% of its authorized power.
In order for the auxiliary boiler to turn off, the water outlet temperature of the
Voltmax boiler must be above the Aux.
T Out Boiler
> (
T. Set-point
-
Delta T. Aux Stop
)
