Danfoss DEVI DEVIreg Hotwater User manual

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DEVIreg™ Hotwater
Installation and User Guide
DEVIreg™ Hotwater
DIN-rail programmable controller for hotwater maintenance
EN

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 3
Table of content
1 Introduction .......................................................................4
2 Safety Instructions .................................................................5
3 Mounting Instructions .............................................................5
4 User Manual .......................................................................6
4.1 General use ...................................................................6
Buttons ..................................................................................6
Display ...................................................................................6
Main Screen view (default) ................................................................7
Heater sub-screen view ...................................................................7
Setup wizard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
First start-up..............................................................................9
Sub-menu Alarm ........................................................................10
Sub-menu Service .......................................................................10
Function Setup Wizard...................................................................11
Sub-menu (H1-H4).......................................................................12
Sub-menu Disinfection schedule .........................................................14
Alarms view .............................................................................15
Main menu ..............................................................................15
4.2 Language setting ........................................................... 16
4.3 Date and Time settings ...................................................... 16
4.4 BMS(Building Management System) settings................................. 16
5 Connection diagram ............................................................. 17
Connection scheme DEVIreg™ Hotwater .................................................17
6 Technical Specifications.......................................................... 18
6.1 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Dimensions ................................................................. 19
7 Disposal Instruction.............................................................. 20
8 Warranty......................................................................... 26

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.
COM
COM 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
COM
AI 2
COM
AI 3-4
AI 3 AI 4
COM
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 COM DI 5-8
D -
D +
GND
RS485
(Modbus)
for H2 for H3for H1
H1 H2 H3 H4
for H4
S - temperature Sensor;

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 5
2 Safety Instructions
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 respec-
tive pipe, and in direct contact with the pipe (2 sensors pr. heating circuit)

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©6
4 User Manual
4.1 General use
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 Next menu entry / next line / next setting parameter
Left, Right Shows additional information
Escape Escape return to previous level of menu / show Alarm
screen
Enter Confirm / select / go to the Main menu
Display
The DEVIreg™ Hotwater can simultaneously control up to 4 different systems . These 4 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.

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 7
Main Screen view (default)
The Main Screen is the main window
appearing when the controller is powered. This
screen displays an overview of data from the
different heaters. (H1-H4) by pressing the
and more detailed information can be ob-
tained from the respective heaters sub screen.
This view provides the user with an overview of
all systems, however with limited information.
Heater sub-screen view
These screens give to user quick and more
detailed information about settings and status
of each heater.
Just press button on the Main Screen of con-
troller and H1 data will appear, press again
- and you'll see H2 data, and so on. To progress
reversly through this menu please use .
To exit from sub-screens view and return to the
Main Screen - press 1 time.

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©8
Setup wizard
On the first power on of the device, the device
will ask to run the wizard to do this press
Press once more to proceed into the setup.
The device will ask for the amount heaters use
to select and to accept.
The device will now ask for the details of each
heater in the following pattern
- Pipe material
- Sensor type
- Temperature setpoint
- Enable disinfection
All mentioned can be selected with and
accepted by .

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 9
If multiple heaters are entered, this exact pro-
cedure will repeat till all information is filled for
all heaters.
The final step in the wizard is the RTC (Real Time
Clock) press
Navigate with or select with
Manipulate with accept with or
return with
Once time and date are set confirm with
First start-up
Ensure everything is correctly connected and
securely fixed.
Please check this now.
Once verified press and hold (approx. 3-5 sec.)
to turn on the device.
T he device will now commence normal operation.

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©10
Sub-menu Alarm
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 perma-
nently by pressing
Sub-menu Service
The structure in this Sub-menu is navigated like
the main menu.
System: contains a system submenu for profes-
sional 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

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 11
RTC setup:
Setup of the real time clock, this is to navigate like explained in setup wizard step RTC.
Login:
Enables a password to be input and is to be navigated with and select
with
Configuration:
Contains buzzer activation time, delay for alarm activation and alarm state when device
is OFF.
Serial settings:
Contains Modbus/CAN serial address, Modbus serial baudrate and Modbus serial set-
tings
Language:
The structure in this Sub-menu is navigated like the main menu.
Contains the different language variants.
Function Setup Wizard
This function will reset the device into the Setup
Wizard.
Yes with or NO with

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©12
Sub-menu (H1-H4)
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.
Settable between 1.0-10.0K
Defaults to 2.0K
High temperature:
Settable with to select and to confirm.
Settable between 20.0-90.0K
Defaults to Setpoint+Hysteresis+5K
Not settable below setpoint

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 13
Alarm delay:
Settable with to select and to confirm.
Temperature alarm delay
Settable between 10-240s
Defaults to 10s
Sensor weighting:
Settable with to select and to confirm.
Weighting the impact of the 2 sensors on the heater regulation.
0% means that the regulation is made on basis of sensor A only 100% meaning sensor B only,
thus 50% is the mean between sensor A and B.
Settable between 0-100%
Defaults to 50%
Disinfection temp:
Settable with to select and to confirm.
Settable between 55-80.0°C
Defaults to 55°C
Pipe material:
Settable with to select and to confirm.
This parameter will have impact on the maximum settable temperatures.
Can be set to metal or plastic.
Has no default value as this must be set in setup wizard
Disinfection alarm temperature:
Settable with to select and to confirm.
This parameter will have impact on the alarm temperature for disinfection temperatures.
Defaults to 65°C

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©14
Maximum rising time:
Settable with to select and to confirm.
This parameter will have impact on when the alarm will be triggered due to, too low
temperature (setpoint not reached).
Defaults to 120 minutes.
Sub-menu Disinfection schedule
The structure in this Sub-menu is navigated like
the main menu.
(H1-H4) Schedule:
Press to go to next parameter and to
cancel.
Settable with to select and to
confirm.
Defaults to Sunday at 02:00.
(H1-H4) Manual start:
Starts the Disinfection procedure manually by
pressing

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 15
Temperature time table:
Temperature of
disinfection [C°] Disinfection time
55 2h 00 minutes
56 1h 20 minutes
57 1h 00 minutes
58 0h 50 minutes
59 0h 45minutes
60 0h 40 minutes
61 0h 35 minutes
62 0h 30minutes
63 0h 28 minutes
64 0h 27 minutes
65 0h 26minutes
Temperature of
disinfection [C°] Disinfection time
66 0h 25 minutes
67 0h 25 minutes
68 0h 22 minutes
69 0h 21 minutes
70 0h 20 minutes
71 0h 18minutes
72 0h 14 minutes
73 0h 12 minutes
74 0h 10 minutes
75 0h 10 minutes
Alarms view
By pressing button from Main Screen –
screen(-s) with Alarm appears.
If more than 1Alarm 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
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
back to the previous menu step.

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©16
4.2 Language setting
DEVIreg™ Hotwater controller has different programmed languages located in Sub-menu
Service under languages.
4.3 Date and Time settings
DEVIreg™ Hotwater controller has RTC (Real Time Clock) for fixing time of data logging
information, for example Alarms.
NB: Battery back-up time is min. 48 hours.
4.4 BMS(Building Management System) settings
DEVIreg™ Hotwater controller has Modbus RS-485 opto-insulated serial interface.
Modbus RS-485 settings can be done by the following menu sequence:
EN: Main Screen – Enter to Main Menu – Enter to Service – Enter to
Serial settings
EN: Main Screen – Enter to Main Menu – Device settings – BMS settings – { Enter –
Serial address – Down – Serial baud rate – Down – Serial settings }
More detailed information is contained in the Appendix A.

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 17
5 Connection diagram
Connection scheme DEVIreg™ Hotwater
COM
COM 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
COM
AI 2
COM
AI 3-4
AI 3 AI 4
COM
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 COM DI 5-8
D -
D +
GND
RS485
(Modbus)
for H2 for H3for H1
H1 H2 H3 H4
for H4
S - temperature Sensor;
S- temperature Sensor;
H- Heating element.

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©18
6 Technical Specifications
6.1 Technical data
Type Value
Nominal voltage 110/230 V~ AC, 50–60 Hz
Power consumption, max. 20 V A
Relay load:
Resistive (inductive, cos(phi sign) = 0,6)
Total current load limit
C1-NO1, C2-NO2
C3-NO3-NC3, C4-NO4-NC4
C8-NO8-NC8
32 A
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
Sensor inputs Analog inputs AI1-AI8
Compatible sensors NTC15k (15 kOhm @ 25 °C) (standard) (max 90 °C)
NTC10k (10 kOhm @ 25 °C)
NTC5k (5 kOhm @ 25 °C)
NTC2k (2 kOhm @ 25 °C)
NTC100 (100 kOhm @ 25 °C)
NTC16k (16,7 kOhm @ 100 °C)
PT1000 (1000 Ohm @ 0 °C)
Digital inputs DI1-DI8, voltage free contacts, on/off inputs
Connection specification Grouped screws plug-in connectors
Cable specification for connectors terminals 0,2-2,5 mm²
Battery back-up time, min. 48 hours
Ball pressure test 125 °C
Pollution degree 2 (domestic use)
Controller type 1 C
Operating temperatures and conditions CE: -20T60 / UL: 0T55, 90% RH non-condensing
Storage temperature and conditions -30Т85, 90% RH non-condensing
IP class IP40 only on the front cover
Protection class Class II -
Immunity against voltage surges Over Voltage Category II
Dimensions (H/W/D), DIN dimension : 110(122) х 138 х 70 mm, 8 DIN modules
Mounting method DIN rail, complying with EN 60715
Weight, net 511 g
Menu languages: EN
Base controller Danfoss MCX08M2, item no. 080G0307
Software class A

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss © 19
6.2 Dimensions
110
140 6063

Installation and User Guide DEVIreg™ Hotwater
FEC | Produced by Danfoss ©20
7 Disposal Instruction