Electric Boiler Controller NELBC-1
INTRODUCTION
Controller NELBC-1 is designed to be inst lled in three-ph se electric boilers h ving up to two
electric he ting elements - for he ting nd for domestic hot w ter (DHW). In its complete
configur tion the controller consists of executive module NEWHC1-3-2 to which ll components of
the he ting system re connected, two modules NEWHC1-3-2_TC th t control three-ph se electric
he ting elements, one for he ting nd one for DHW, nd control module NRC-8 MV th t provides
boiler's st tus visu liz tion nd llows setup nd control of boiler's oper tion. Option lly n
ddition l control module NRC-8 SV m y be connected. It functions s room thermost t s well
s sp re termin l for boiler's b sic control nd displ y of its st tus. The controller m y be used s
well in boilers th t h ve only he ting or only DHW function. In this c se only the components of
the ctive function h ve to be connected nd only one NEWHC1-3-2_TC is needed.
NELBC-1 llows flexible control of boiler's he ting elements providing m ximum comfort nd
energy s vings t the s me time. Modern user-friendly touch interf ce with gesture recognition
provides e sy n vig tion throughout inform tion screens nd settings menu. Context-dependent
virtu l keyp d nd icons th t represent the function of e ch button m kes the controller f st nd
e sy to setup nd oper te. The user c n directly set required he ting temper ture t the moment or
configure the weekly progr mmer for utom tic djustment of comfort temper ture in required
time-sp n of the d y. A complete configur tion boiler m y oper te in combined mode - he ting nd
DHW, only he ting or only DHW mode.
The controller continuously n lyzes the d t from sensors th t re connected to it nd the
me sured electric l v lues nd when devi tion in norm l oper tion of boiler is registered the
corresponding error mess ge is displ yed. The controller keeps di gnostics records of registered
events cont ining d te, time nd description of the event. Most of these events require user
intervention or service nd re therefore ccomp nied by udible sign l.
NELBC-1 h s built-in lgorithm to n lyze whether the electric he ting elements re in working
order. When this function is ctiv ted, during boiler oper tion the controller n lyzes the me sured
volt ges, currents nd power nd sign ls when registering nom lies th t m y be c used by f ulty
he ting element.
The controller llows, if necess ry, the output of the he ters to be further limited, sep r tely for
he ting nd for domestic hot w ter, for the purpose of economy or due to limit tions of the
electric l inst ll tion. Besides he ting elements, the controller lso controls the circul tion pump of
the he ting inst ll tion. Also, with the help of the corresponding sensor it monitors the pressure in
the system nd, if the v lues re outside the set r nge, displ ys n error mess ge, ctiv tes n
udible l rm, nd stops the he ters nd the pump in n emergency t low pressure, which is most
likely due to le k in the he ting system. The controller h s built-in function to protect the
he ting inst ll tion from freezing, which c n be ctiv ted if necess ry
In ddition to he ting, the boiler c n be used for screed drying, by ctiv ting speci l mode with
temper ture profile th t c n be configured ccording to the user's needs.
The built-in Wi-Fi module llows remote monitoring nd control of the boiler vi the Internet
through the N turel Sm rt Home system.
User M nu l / revision 1.2 http://www.n turel -bg.co m/ en стр. 3 от 36
