Riello NexSirius 006 M Instructions For The Installer And The Technical Service Centre page 92

NExSIRIUS NExSIRIUS
Par Variable name
126 AUX NUMBER
127 BACKUP ELECBOIL
128 EH PRIORITY
129 AUX T° O
130 AUX HYST
131 AUX DELAY
132 OAT BOILER
The parameters displayed in grey are not available.
Number of backup heaters
0. No backup heaters
1. 1 backup heater output (to be selected in case of boiler backup)
2. 2 backup heaters output (2nd backup heater output activated after the 1st backup
heater output)
Defines the backup energy source:
1: Electrical heater
2: Gas boiler
This code defines the electric heater output priority between back-up heaters (space
heating) and booster heater (domestic hot water). It is only active if code 127 = 1
0. All the electric heaters output can be activated at the same time, if required
1. Maximum 2 electric heaters output can be activated; booster heater has the lowest
2. Maximum 1 electric heater output can be activated; back-up heater output 1 has the
highest priority (backup heater output 2 is never ON)
3. Maximum 2 electric heaters output can be activated; booster heater has the lowest
priority (backup heater output 2 is never ON)
4. Maximum 1 electric heater output can be activated; booster heater has the highest
priority (backup heater output 2 is never ON)
The outdoor T° must be below this value to allow the backup heaters to be ON (unless
there is a failure to stop the outdoor unit and code 1.4 = 1)
If the difference between water setpoint and water temperature is higher than this
value, backup heaters are allowed to turn on
Time delay (minutes) before switching the backup heaters ON
If in Heat mode, the outdoor temperature is less than the value of this code, the
outdoor unit is turned OFF and the Boiler is used as heat source. Set to minimum value
if this function is not required.
EN
Description
92 92
Value range
Min Max
0 2
1 2
priority
0 4
-30 °C +40 °C
0 °C 10 °C
0 60
-30 °C +40 °C
Default
0
Unit
without
heater: 2
0
+4 °C
3 °C
10
-5 °C