Electronic temperature regulator
for three-phase electrical water heaters,
with two heat exchangers and
a remote control option
NHC-H42-2
software version 2.3
User manual
NHC-H42
are a new generation built-in electronic temperature regulators, designed for
combined water heaters with up to three heat sources:
•
An electrical heater;
•
A solar collector;
•
A boiler.
The controller has a contrast LCD display, four control buttons and a LED indication for the
electrical heater. NHC-H42 has a built-in electronic temperature regulator to control a mono-phase
or three-phase electrical heater with accuracy of the measured temperature up to 1%, and two
precise differential temperature regulators directly running the circulation pumps on 220VAC
The first one of the temperature regulators is specialized to work with a solar collector and the
NHC-H42-2 Reference Manual ver 1.6
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On/Off/Set
▲
▼
View/Enter
An indicator
for working
electrical heater
