Nefit connection diagram

Nefit

Wondering if a thermostat is suitable for your Nefit central heating boiler? View the connection table for all Nefit boiler models here.
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The control of the appliance is controlled by the thermostat, this can be done via on/off or modulating.

With an on/off control, the appliance is simply switched on or off and this control can also control a valve for district heating, for example. This arrangement is suitable for almost any device.

 

A modulating heating control allows the burner height of the appliance to burn at different positions. This ensures precise temperature controls and the burner activity of the boiler is precisely adapted to the heat demand. A modulating control thus achieves more efficiency from a low heating capacity.

 

In the table below you can look up your type of central heating boiler, in the columns next to it it is indicated which thermostat is suitable for your appliance and to which connection you should connect it.

Connection table

Type On off Opentherm Nefit Easy
TrendLine (All Versions) And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
TopLine I / II EN 25/30/45 And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
TopLine I / II HR 70/100 And 5 and 6 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
TopLine Single I / II And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
TopLine Compact I/II HRC 25/CW4 30/CW5 And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
TopLine AquaPower I / II (Plus) HRC And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
ProLine HRC24/CW3 and HRC24/CW4 And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
ProLine NxT HRC 24/CW3, 24/CW4 And 1 and 2 green And Thermostat on orange terminal block And via nefit connect (2)
 
Central heating boilers no longer in production
Ecomline Excellent HR(C) And 1 in 2 N.V.T. And via nefit connect (2)
Ecomline Classic HR(C) And 1 in 2 N.V.T. And via nefit connect (2)
SmartLine Basic HR(C) 24/CW3/CW4 And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
Turbo HR(C) And 1 in 2 N.V.T. N.V.T.
Ecomline VRC 24V(S) And 1 in 2 N.V.T. N.V.T.
HRC23VT And 1 in 2 N.V.T. N.V.T.
Ecomline Economy HR(C) 23V/28V And 1 in 2 N.V.T. And via nefit connect (2)
Economy HR(C) And 1 in 2 N.V.T. And via nefit connect (2)
VR FC 2520/3030 V/S (C) And 5 in 6 N.V.T. N.V.T.
VR FC 2510 V/S (C) And Knows N.V.T. N.V.T.
Ecomline Elite HRC 24/CW4, 30/CW5 And 5 and 6 green N.V.T. N.V.T.
SmartLine HR11/24, HRC 24/CW4/CW3 And 1 and 2 green And Via EMS-OT converter (1) (orange connection) And Thermostat on orange terminal block
Economy VR(C) And 1 in 2 N.V.T. And via nefit connect (2)
(1) EMS-OT converter available here
(2) Nefit connect available here
Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday
January,February,March,April,May,June,July,August,September,October,November,December
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