VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised March 2019)
, Page
46.
T. EXT MODE
Maximum power modulation is based on the outside temperature.
Power modulation is shown below.
If the external sensor is not connected or there is a problem with
the sensor, then the power will be limited according to
Cap. At T.
Ext. Min.
Figure 17: Adjustment curve according to the T. ext mode
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. At T.
Ext. Min
WP_CapLimitatM
inOutdT
37
8388645
Maximum authorized capacity according to
T. Ext.
Min
Ex. Maximum power is 170 kW for T. Ext min
0 to maximum
rated power
---
Cap. At T.
Ext. Max
WP_CapLimitatM
axOutdT
38
8388646
Maximum authorized capacity according to
T. Ext.
Max
Ex. Maximum power is 120 kW for T. Ext min
0 to maximum
rated power
---
Actual T.
Exterior
AV_OutdoorT
2
8388610
This variable allows you to view the outside
temperature in real time when the outside
temperature sensor is properly connected.
-46 to 107 °C
-50 to 250 °F
---
T. Ext. Min
WP_MinOutdTCa
pLimit
39
8388647
Minimal outside temperature used to adjust the
maximum power
-46 to 107 °C
-50 to 250 °F
-10 F
T. Ext. Max
WP_MaxOutdTC
apLimit
40
8388647
Maximum outside temperature used to adjust the
maximum power
-46 to 107 °C
-50 to 250 °F
65 F