Installation and User Guide
DEVIreg™ Hotwater
FEC | Produced by Danfoss ©
4
1
Introduction
DEVIreg™ Hotwater
is a 4 channel electronic programmable controller . 3 additional chan-
cels are not used in this constellation . The device is DIN-rail mountable and is used for
control of Devi Hotwatt cables . Every channel (4) can be individually set up, this will allow
for 4 different temperatures and disinfection schedules .
Universal analog channels’ inputs can be selected via software between 7 types of temperature
sensors including NTC 15 kOhm at 25 °C . The controller has a LCD display, Modbus RS-485
serial interface and 110/230 V AC power supply . Voltage to sensors is SELV .
DEVIreg™ Hotwater
has 8 control relays – 2 sets of max . 10 A and 6 sets of max . 6 A; For this
specific application 2, 10A and 2, 6A relays are used . Relay control functions can be set to
Hot-water maintenance and legionella control of a hot-water system by use of applicable
heating cables . Additionally, relay contacts are not connected to a voltage source inside the
controller, and can be used for control systems with any voltage up to 250 V AC .
Hardware of
DEVIreg™ Hotwater
is based on the Danfoss controller type MCX08M2,
art . no . 080G0307, but is customized with special software .
The product complies with the EN/IEC Standard “Automatic electrical controls for house-
hold and similar use”:
•
EN/IEC 60730-1 (general)
•
EN/IEC 60730-2-9 (thermostat)
More information on this product can also be found at:
devi.com
Connection scheme DEVIreg™ Hotwater
S
- temperature Sensor;
H
- Heating element .
CO
M
CO
M
DI 1-4
DI 1
C 1
NO 1
DI 2
C 2
NO 2
DI 3
NC 3
C 3
NO 3
DI 4
NC 4
C 4
NO 4
DI 5
C 5
NO 5
DI 6
C 6
NO 6
DI 7
NC 7
C 7
NO 7
AI 1
CO
M
AI 2
CO
M
AI 3-4
AI 3
AI 4
CO
M
AI 5-8
AI 5
AI 6
AI 7
AI 8
Power
110/230 V AC
RS485
NC 8
DI 8
C 8
NO 8
CO
M
DI 5-8
D -
D +
GND
RS485
(Modbus)
for H2
for H3
for H1
H1
H2
H3
H4
for H4
S -
temperature Sensor;