DEVI DEVIreg 528 User manual

DEVIreg™ 528
Electronic Thermostat
Installation Guide
www.DEVI.com

Table of Contents
1 Introduction ............... 3
1.1 Technical Specifications ..... 4
1.2 Safety Instructions ........ 5
2Mounting Instructions ......... 6
3Settings ................. 9
4Warranty ................. 11
5 Disposal Instruction .......... 11
1 Introduction
DEVIreg™ 528 is an electronic thermostat provided with a 2-
pole switch and a floor sensor to measure and control the
desired floor temperature. It can either be flush-mounted
or surface-mounted.
The thermostat has a button for adjusting the temperature
setting with a scale from ( ) 1 to 6 (each step corresponds
to approximately 8°C). Furthermore, it has a LED indicator
showing standby periods (green light) and heating periods
(red light).
More information on this product can also be found at:
devireg.devi.com
DEVIreg™ 528
Installation Guide 3

1.1 Technical Specifications
Operation voltage 220-240~, 50Hz
Standby power consumption Max. 0.25W
Relay:
Resistive load
Inductive load Max 10A / 2300W @ 230V cos φ= 0.3 max 1A
Sensing units NTC 15kOhm at 25°C
Sensing values:
0°C
25°C
50°C
42kOhm
15kOhm
6kOhm
Hysteresis ± 0.4°C
Ambient temperature -10°C to +30°C
Frost protection temperature 5°C -
Temperature range ( ) 5-45°C with floor sen-
sor only
Cable specification max 1x4mm2or 2x2,5mm2
Ball pressure temperature 75°C
Pollution degree 2 (domestic use)
Type 1C
Storage temperature -20°C to +65°C
DEVIreg™ 528
4 Installation Guide

IP class 31
Protection class Class II -
Dimensions 85 x 85 x 36mm
Weight 90g
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)
1.2 Safety Instructions
Make sure the mains supply to the thermostat is turned off
before installation.
IMPORTANT: When the thermostat is used to control a
floor heating element in connection with a wooden floor or
similar material, always use a floor sensor and never set the
maximum floor temperature to more than 35°C.
Please also note the following:
▪The installation of the thermostat must be done by an
authorized and qualified installer according to local
regulations.
▪The thermostat must be connected to a power supply
via an all-pole disconnection switch.
DEVIreg™ 528
Installation Guide 5

▪The sensor is to be considered as live voltage. Have
this in mind if the sensor must be extended.
▪Always connect the thermostat to continuous power
supply.
▪Do not expose the thermostat to moisture, water, dust,
and excessive heat.
2 Mounting Instructions
Please observe the following placement guidelines:
Place the thermostat at a suitable height on
the wall (typically 80-170cm.).
In wet rooms, place the thermostat according
to local regulation on IP classes.
Note: A floor sensor enables a more accurate
temperature control and is recommended in
all floor heating applications and mandatory
under wooden floors to reduce the risk of
over-heating the floor.
DEVIreg™ 528
6 Installation Guide

▪Place the floor sensor in a conduit in an appropriate
place where it is not exposed to sunlight or draft from
door openings.
▪Equally distant and >2cm from two heating cables.
▪The conduit should be flush with the floor surface -
countersink the conduit if necessary.
▪Route the conduit to the connection box.
▪The bending radius of the conduit must be min 50mm.
Follow the steps below to mount the thermostat:
1. Open the thermostat:
devireg™550
3
5
6
24
20
30
40
50
▪Press the release tab in the bottom of the thermostat
using a screwdriver or similar object.
▪Carefully detach the front cover.
▪Carefully detach the frame.
DEVIreg™ 528
Installation Guide 7

2. Connect the thermostat according to the connection
diagram.
IP31
-10T30
D528
Mains
220-240V~
Max. Load
10 (1) A
Sensor
NLNTC
N
LOAD
L
LOAD
-5°C
L
By connecting an external timer to the terminal
marked by a moon symbol (and by using for example
the same phase as for the mains power supply), the
thermostat can be set to reduce the temperature by
5ºC during specified periods.
The screen of the heating cable must be connected to
the earth conductor of the power supply cable by us-
ing a separate connector.
Note: Always install the floor sensor in a conduit in the
floor.
DEVIreg™ 528
8 Installation Guide

3. Mount and reassemble the thermostat:
▪Fasten the thermostat to a flush-mounting box
or a surface-mounting box by driving the screws
through the holes in each side of the thermostat.
▪Install the frame and front cover in the reverse or-
der of disassembly.
4. Turn on the power supply.
3 Settings
Please be aware of the following:
▪The floor temperature is measured where the floor
sensor is placed.
▪The temperature of the bottom of a wooden floor
can be up to 10 degrees higher than the top.
▪Floor manufactures often specify the max tempera-
ture on the top surface of the floor (usually 27-28˚C).
▪Always use a floor sensor or a room + floor sensor
combination to control floor heating. Without a floor
sensor, the temperature control may be less accurate
and you risk overheating the floor.
DEVIreg™ 528
Installation Guide 9

Ther-
mal
resist-
ance
[m2K/
W]
Examples of floor-
ing
Details Approximate
setting for 25˚C
on top surface
of floor
0.05 8 mm HDF based
laminate
> 800
kg/m3
28˚C
0.10 14 mm beech par-
quet
650 - 800
kg/m3
31˚C
0.13 22 mm solid oak
plank
> 800
kg/m3
32˚C
< 0.17 Max. carpet thickness
suitable for floor
heating
acc. to
EN/IEC
1307
34˚C
0.18 22 mm solid fir
planks
450 - 650
kg/m3
35°C
DEVIreg™ 528
10 Installation Guide

How to change the minimum and maximum floor tem-
peratures
1. Remove the adjust-
ment button.
2. Move the pins to the
desired positions.
3. Put the adjustment
button back in place.
devireg™550
3
5
6
24
20
30
40
50
4 Warranty
2
Y E A R
5 Disposal Instruction
DEVIreg™ 528
Installation Guide 11

DEVIreg™ 528
12 Installation Guide

DEVIreg™ 528
Installation Guide 13

DEVIreg™ 528
14 Installation Guide

DEVIreg™ 528
Danfoss A/S
Electric Heating Systems
Ulvehavevej 61
7100 Vejle
Denmark
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
www.DEVI.com
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its
products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes
being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. DEVI and the DEVI logo-
type are trademarks of Danfoss A/S. All rights reserved.
0809XXXX & VIGDN102 Produced by Danfoss © 05/2012

DEVIreg 528 ELKO
140F1030
Thermostat - Floor Sensor 220-240V~ 50-60Hz~ +5 to +45°C 10A/2300W@230V~ IP 31
Product Documentation
FI SSTL 3531035
Designed in Denmark for Danfoss A/S
5 7 0 3 4 6 6 2 0 9 1 2 7