Ariston NIMBUS PLUS 50 S EXT - WHOLE SYSTEM FINAL INSTALLATION OVERVIEW; Under-Floor System Installation Note

59 / GB
A
B
C
D
E
F
5/8”
3/8”
INTERNAL UNIT
VE
1
6
4 5
2
3
7
Legend:
1. Internal unit
2. External unit
3. External sensor
4. High-temperature heating zone /
Low temperature cooling zone
(with fan coil unit)
5. Low temperature heating zone /
High-temperature cooling zone
6. System interface
7. By pass
Return Zone 1
DHW Return
Flow Zone 1
DHW Flow
Discharge
of safety valve
3 bar
EXTERNAL UNIT
FINAL INSTALLATION OF THE WHOLE SYSTEM
NOTE: Installation with under-fl oor systems
For under-fl oor installations, make sure to install a safety device on the heating delivery circuit, as required by DTU 65.11. For the thermostat
hookup, refer to “Electrical connections”.
If the delivery temperature is too high, the system stops in both domestic hot water and heating/cooling modes, and the remote control will
report error code 116 “Under-fl oor heating thermostat open”. The system will start again when the manual re-arm thermostat is closed.