Ariston NIMBUS COMPACT M NET 40 M EXT Technical Instructions For Installation And Maintenance page 59

1 ZONE FSP
The circulation pump which drives the fl uid between the external unit and the heating/cooling system in positioned in the exter-
nal unit. The unit also has two "2 kW" heating elements and an expansion vessel.
3
2
7
8
2 ZONE FSP
The circulation pump which drives the fl uid between the external unit and the heating/cooling system in positioned in the exter-
nal unit. The unit also has two "2 kW" heating elements and an expansion vessel, two circulation pumps and a mixer valve to supply
two heating/cooling zones at diff erent temperature.
3
2
9
10
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.
1
VE
9
Legend:
1. Internal unit
2. External unit
3. External sensor
4. Two high and low temperature heating/cooling zones
5. Two low temperature heating/cooling zones
6. Two zones: high temperature heating or low temperature cooling
1
7. System interface and Sensys Net
8. Zone Control room sensor
9. Filtre
10. Cartridge Anti-freeze
VE
11. By pass
11
11
Legend:
1. Internal unit
2. External unit
3. External sensor
4. High-temperature heating zone /
Low temperature cooling zone
(with fan coil unit)
5. Heating/low temperature cooling zone
6. System interface and Sensys Net
7. Filter
8. Cartridge Anti-freeze
9. By pass
5 4
4
5
59 / GB
6
7
8
6