Nimbus Compact M NET R32 Installation Manual UK
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Hydraulic connections<br />
Key<br />
Symbol<br />
Description<br />
System flow<br />
Symbol<br />
Description<br />
Hydraulic circuit-breaker<br />
Symbol<br />
Description<br />
CUBE<br />
System return<br />
Communication connection<br />
Electrical connection<br />
Domestic cold water inlet<br />
Domestic hot water outlet<br />
Buffer<br />
Storage active<br />
Timer-controlled thermostat<br />
Lightbox<br />
Zone manager<br />
Refrigerant circuit<br />
Gas supply<br />
Circulation pump<br />
Shutter valve<br />
DHW expansion vessel<br />
System expansion vessel<br />
NTC<br />
RF<br />
2-zone wired control<br />
module<br />
2-zone wireless control<br />
module<br />
AB<br />
B<br />
A<br />
Diverter valve<br />
DHW 3-way mixing valve<br />
System 3-way mixing<br />
valve<br />
Safety valve<br />
Differential bypass valve<br />
Non-return valve<br />
Sludge filter<br />
Y-shaped filter<br />
Discharge outlet<br />
Syphon<br />
Plate heat exchanger<br />
Manifold<br />
Low-temperature heating<br />
zone<br />
Radiator<br />
Fan coil unit<br />
Dehumidifier<br />
External probe<br />
RF external sensor<br />
Gateway<br />
Sensys <strong>NET</strong> HD<br />
CUBE S <strong>NET</strong><br />
RF receiver<br />
Heating only<br />
Cooling only<br />
Heating / Cooling<br />
Living room<br />
Sleeping area<br />
Delivery temperature<br />
sensor<br />
Return temperature<br />
sensor<br />
Anti-freeze kit<br />
Kit barrette<br />
CKZ puffer kit<br />
Thundish<br />
Hydraulic Kit<br />
CUBE RF<br />
Y-shaped filter kit<br />
Space heating supplementary<br />
heating element<br />
kit<br />
NOTE: installations with under-floor system<br />
In installations with under-floor heating, make sure that in all<br />
operating modes (the hot water switching mode in particular),<br />
the input temperature of the floor falls within the limits allowed<br />
for the application as specified in the national regulations.<br />
For installations with under-floor system, install a safety device<br />
on the heating delivery circuit, as specified in the national regulations.<br />
For the electrical connection of the thermostat, refer to the paragraph<br />
“Electrical connections”.<br />
If the delivery temperature is too high, the system stops in<br />
both domestic hot water and heating/cooling modes, and the<br />
remote control will report error code 936 “Under-floor safety<br />
thermostat open”. The system will start again when the manual-reset<br />
thermostat is closed.<br />
The input to be used as a connection to the under-floor safety<br />
thermostat is IN AUX 2 STE by default (function set through<br />
parameter 1.1.4).<br />
If the safety thermostat is connected to STE and the safety device<br />
intervenes, the circulation pump will continue to be fed<br />
and the anti-freeze protection is always guaranteed.<br />
If the safety thermostat is connected to STT and the safety device<br />
intervenes, the circulation pump will no longer be fed and<br />
the anti-freeze protection is not guaranteed.<br />
32 / EN
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