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 household 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
Make sure the mains supply to the controller is turned off before installation.
Please also note the following:
• The installation of the controller must be done by an authorized and qualified installer
according to local regulations.
• The controller must be connected to a power supply via an all-pole disconnection switch.
• Always connect the controller to continuous power supply.
• Do not expose the controller to moisture, water, dust and excessive heat.
Note: Product is designed for Over Voltage Category II. When used, installation must be
equipped with transient protection.
3 Mounting Instructions
Please observe the following placement guidelines:
Install the thermostat in an electric cabinet with DIN rail attachment or a separate DIN
attachment according to local regulation on IP classes.
Do not place the thermostat in a way that will expose the controller to direct sunlight.
Follow the steps below to mount the thermostat:
1. Click the thermostat on the DIN rail attachment.
2. Connect the thermostat according to the connection diagram, see page 4.
3. The screen of the heating cable must be connected to the earth conductor of the
power supply cable by using a separate connector.
4. Turn on the power supply.
Note: Always install the sensors at assumed hottest and coldest locations on the respective pipe, and in direct contact with the pipe (2 sensors pr. heating circuit)
The DEVIreg™ Hotwater is operated via 6 physical buttons to the right of the LCD-display.
Buttons
The functions of the 4 operated buttons are:
Up, Down
Left, Right
Escape
EnterConfirm / select / go to the Main menu
Display
The DEVIreg™ Hotwater can simultaneously control up to 4 different systems
are referred as H1, H2, H3 and H4 (short for Heater).
The DEVIreg™ Hotwater provides the user with an opportunity to view the current status
of the all systems. This status is allways shown on the main screen.
Next menu entry / next line / next setting parameter
Shows additional information
Escape return to previous level of menu / show Alarm
screen
The structure in this Sub-menu is navigated like
the main menu.
Active alarms: display of the currently active
alarms and is to navigate like Alarm view.
Having an active alarm will activate alarm
relay. Alarms will be retained till reset has been
performed.
Reset Alarms: Reset all alarms by pressing
Log history: display previous alarms in a list
with date and timestamp. This is navigated like
Alarm view.
Clear log history: clears the log history permanently by pressing
Sub-menu Service
The structure in this Sub-menu is navigated like
the main menu.
System: contains a system submenu for professional users containing (Yxx) parameters.
Additionally this menu should under normal
circumstances not be used.
This menu will change according to the user
level password entered in Login.
Relay counters:
Displays the number of relay ON/OFF switching’s performed by each relay.
Software info:
Displays the installed software version.
Device info:
Displays serial number, product code and BIOS version
The structure in this Sub-menu is navigated like the main menu.
Sensor type:
to select correct type and to confirm.
Be aware that 2 sensors must be used for each heater circuit (H1-H4) and that these must
be the same type.
-PT1000
-NTC16K (NTC16.8K)
-NTC100 (NTC100K)
-NTC2K
-NTC5K
-NTC10K
-NTC15K (Std. DEVI sensor)
Has no default value as this must be set in setup wizard. Please refer to the sensors maximum
and minimum temperatures to ensure safe operation of the system.
Setpoint:
Settable with to select and to confirm.
Settable temperature setpoint (desired maintained temperature) between 20.0-80.0°C
(20-60.0°C on plastic pipe).
Has no default value as this must be set in setup wizard.
Hysteresis:
Settable with to select and to confirm.
By pressing button from Main Screen –
screen(-s) with Alarm appears.
If more than 1 Alarm is happened – use naviga-
tion by going . Pressing button again
leads from Alarm to Main Screen. Having an
active alarm will activate alarm relay. Alarms will
be retained till reset has been performed.
Main menu
Disinfection time
By pressing from the Main Screen– screen
Main Menu appears.
The menu system is navigated from Main
Screen by the following sequence:
The main menu is navigated by and .
Pressing the the selected sub-menu will be
shown. Pressing button you will be taken
Digital inputsDI1-DI8, voltage free contacts, on/off inputs
Connection specificationGrouped screws plug-in connectors
Cable specification for connectors terminals0,2-2,5 mm²
Battery back-up time, min.48 hours
Ball pressure test125 °C
Pollution degree2 (domestic use)
Controller type1 C
Operating temperatures and conditionsCE: -20T60 / UL: 0T55, 90% RH non-condensing
Storage temperature and conditions-30Т85, 90% RH non-condensing
IP classIP40 only on the front cover
Protection class Class II Immunity against voltage surgesOver Voltage Category II
Dimensions (H/W/D), DIN dimension :110(122) х 138 х 70 mm, 8 DIN modules
Mounting methodDIN rail, complying with EN 60715
Weight, net511 g
Menu languages:EN
Base controllerDanfoss MCX08M2, item no. 080G0307
Software classA
10 (3,5) A (100 000 cycles), cos(phi) = 0.5
6 (4) A (100 000 cycles), cos(phi) = 0.6
6 (4) A (100 000 cycles), cos(phi) = 0.6
E01Sensor1 A error01AUTOACTIVERead1901 .08
E02Sensor1 B error01AUTOACTIVERead1901 .09
E03Sensor2 A error01AUTOACTIVERead1901 .10
E04Sensor2 B error01AUTOACTIVERead1901 .11
E05Sensor3 A error01AUTOACTIVERead1901 .12
E06Sensor3 B error01AUTOACTIVERead1901 .13
E07Sensor4 A error01AUTOACTIVERead1901 .14
E08Sensor4 B error01AUTOACTIVERead1901 .15
A01 Heater1 high temp01AUTOINACTIVERead1901 .00
A02 Heater2 high temp01AUTOINACTIVERead1901 .01
A03 Heater3 high temp01AUTOINACTIVERead1901 .02
A04 Heater4 high temp01AUTOINACTIVERead1901 .03
A05 Heater1 disinfection fail01MANUAL INACTIVERead1901 .04
A06 Heater2 disinfection fail01MANUAL INACTIVERead1901 .05
At DEVI, we find it of great importance to deliver high quality products with long lasting effects.
DEVIwarranty™ is a series of 4 individual, best-in-market warranties to give you full peace of mind while using DEVI products in
electric heating systems. For all DEVI products, we maintain the following warranties:
Not only does this warranty include costs of reparation or replacement, but also installation and floor materials, such as damage
to brickwork and tiles. For more details, read DEVIwarranty™ terms and conditions below.
• All related accessories, including heating cables, and heating mats accessories.
Should you, against all expectations, experience a problem
the date of purchase on the following conditions:
During the warranty period DEVI shall offer a new comparable product or repair the product in case the product is found to be
faulty by reason of defective design, materials or workmanship. The repair or replacement shall be carried out free of charge
providing that the warranty claim is valid. The decision to either repair or replace will be solely at the discretion of DEVI. DEVI
shall not be liable for any consequential or incidental damages including, but not limited to, damages to property or extra utility
expenses.
An extension of the warranty period following repairs undertaken cannot be granted.
The warranty shall be valid only if the WARRANTY CERTIFICATE is completed correctly and in accordance with the instructions, and
provided the fault is submitted to the installer or the seller without undue delay and proof of purchase is provided. Please note that
the WARRANTY CERTIFICATE must be completed in English or local language.
DEVIwarranty™ shall not cover any damage caused by incorrect conditions of use, incorrect installation or if installation has been
carried out by non-authorized electricians. All work will be invoiced in full if DEVI is required to inspect or repair faults that have
arisen as a result of any of the above.
The DEVIwarranty™ shall not extend to products which have not been paid in full.
DEVI will, at all times, provide a rapid and effective response to all complaints and inquiries from our customers.
The warranty explicitly excludes all claims exceeding the above conditions.
Attention: The Warranty Certificate must be completed correctly for the Warranty to be valid.
with your DEVI product, you will find that DEVI offers DEVIwarranty™ from