Danfoss ECtemp 550 User manual

MAKING MODERN LIVING POSSIBLE
Installation Guide
ECtemp 550
Electronic Intelligent Thermostat
www.EH.danfoss.com

Danfoss A/S is not liable or bound by warranty if these
instructions are not adhered to during installation or service.
The English language is used for the original instructions.
Other languages are a translation of the original instructions.
(Directive 2006/42/EC)
© 2012 Copyright Danfoss A/S

Table of Contents
1 Introduction ............... 3
1.1 Technical Specifications ..... 4
1.2 Safety Instructions ........ 6
2Mounting Instructions ......... 7
3Settings ................. 12
3.1 Time and Day of Week Settings 13
3.2 Basic Settings ........... 14
4 Warranty ................. 21
5 Disposal Instruction .......... 21
1 Introduction
The ECtemp 550 thermostat controls electrical floor heat-
ing elements using a built-in and/or an external tempera-
ture sensor. The thermostat can be optimised for the room
within a few days after the installation by continuously col-
lecting updated temperature data. This will enable the unit
to compensate for sudden temperature changes and
makes it possible to achieve the selected temperature at
the right time.
Furthermore, the unit is able to automatically lower or raise
the temperature at specific points of time, i.e. automatically
switch between comfort and economy temperature.
ECtemp 550
Installation Guide 3

Note: This thermostat does not apply to tariff control or
similar systems.
More information on this product can also be found at:
ectemp.danfoss.com
1.1 Technical Specifications
Operation voltage 220-240 V~, 50/60 Hz
Standby power consump-
tion <500mW
Relay:
Resistive load
Inductive load Max. 16A / 3680W @ 230V cos φ= 0.3 Max. 1A
Sensing units NTC 15 kOhm at 25°C
Sensing values:
0°C
25°C
50°C
42kOhm
15kOhm
6kOhm
Hysteresis ± 0.2°C with room sensor
± 0.4°C with floor sensor
only
Ambient temperature 0 to +30°C
Floor temperature limit +20 to +50°C
Frost protection temp. 5°C -
ECtemp 550
4 Installation Guide

Temperature range +5 to +35°C (room) or +5 to
+50 (floor)
Lowering in economy peri-
ods 0 to -30°C
Offset (temp. correction) -5,5 to +5,5°C
Cable specification max. 1x4mm2or 2x2,5mm2
Ball pressure temperature 75°C
Pollution degree Degree 2 (domestic use)
Type Type 1C
Software class Class A
Storage temperature -20°C to +65°C
Battery back-up 100 hours
IP class 30
Protection class Class II -
Weight 110g
Dimensions 85 x 85 x 55mm (in-wall
depth: 24mm)
The product complies with the EN/IEC Standard "Automatic
electrical controls for household and similar use":
▪EN/IEC 60730-1 (general)
▪EN/IEC 60730-2-7 (timer)
▪EN/IEC 60730-2-9 (thermostat)
ECtemp 550
Installation Guide 5

1.2 Safety Instructions
Make sure the mains supply to the thermostat is turned off
before installation. If the thermostat is installed in a net-
work, the mains supply to all thermostats in the network
must be off.
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.
▪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.
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6 Installation Guide

2 Mounting Instructions
Please observe the following placement guidelines:
Place the thermostat at a suitable height
on the wall (typically 80-170cm.).
The thermostat should not be placed in
wet rooms. Place it in an adjacent room.
Always place the thermostat according to
local regulation on IP classes.
Do not place the thermostat on the inner
side of an exterior wall.
Always install the thermostat at least 50
cm. from windows and doors.
ECtemp 550
Installation Guide 7

Do not place the thermostat in a way that
it will be exposed to direct sunlight.
Note: A floor sensor enables a more accu-
rate temperature control and is recom-
mended in all floor heating applications
and mandatory under wooden floors to
reduce the risk of over-heating the floor.
▪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.
ECtemp 550
8 Installation Guide

Follow the steps below to mount the thermostat:
1. Open the thermostat:
▪Push down the release tab.
▪Carefully detach the front cover.
▪Remove the two screws.
▪Carefully detach the display module. Make sure to
pull it straight out to avoid damaging the 8-pin con-
nector plug on the back of the module.
▪Carefully detach the frame.
ECtemp 550
Installation Guide 9

2. Connect the thermostat according to the connection
diagram.
IP30
0T30
D550
Max.Load
16 (1) A
NTC
Sensor
Mains
220-240V~
NLdevinet
N
LOAD
L
LOAD
The screen of the heating cable must be connected to
the earth conductor of the power supply cable by us-
ing a separate connector.
The devinet terminals are used when connecting ther-
mostats in a network. Network cables must be of
identical isolation value as normal installation cables
and have a recommendable specification of
2x1,5mm2 and a total length of maximum 100m.
Note: Always install the floor sensor in a conduit in the
floor.
ECtemp 550
10 Installation Guide

3. Mount and reassemble the thermostat.
= Screw holes for mount and reassemble the ther-
mostat.
▪Fasten the thermostat to a socket or an exterior wall
box by driving the screws through the holes in each
side of the thermostat.
▪Install the frame, display module, and front cover in
the reverse order of disassembly.
Make sure to carefully put the display module in
place and do not over-tighten the screws.
4. Turn on the power supply.
Initially main supply the thermostat for 15 hours to fully
charge the battery. The current time and day is then kept
for 100 hours if mains supply is off. All other settings are
stored permanently.
ECtemp 550
Installation Guide 11

3 Settings
The thermostat is automatically activated when the power
supply is turned on.
Note: If the unit has never been activated before, basic con-
figuration settings must be specified.










1. Symbol for frost protection.
2. Numeric display of time, temperature, text, etc.
3. Day of week.
4. Flashing indication of actual time.
5. Symbol for setting of time and day.
6. Symbol for timer mode.
7. Symbol indicating that the floor is being heated.
8. Symbol for degrees.
9. Safety lock.
10. Symbol for economy periods with lower temperature.
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12 Installation Guide

3.1 Time and Day of Week Settings
1. Press and hold the button for 3
seconds.
The clock symbol appears on
the display and the day of the
week is shown as a number
(from 1-7) just below the time.
You change the day of week by
turning the button in either di-
rection and the time passes
00:00.
2. Find and set the correct day and time. A black dot will
appear on the outer ring at the same time.
3. Press the button once to confirm.
ECtemp 550
Installation Guide 13

3.2 Basic Settings
The following table shows the default values of the basic
settings:
Item Default setting Options
Network type Alone (ALO) Independent (ALO)
Master (MAS)
Slave (SLA)
Adaptive function On (AdAP) On (AdAP)
Off (OFF)
Sensor Room + floor sen-
sor (rFS)
Floor sensor (FS)
Room sensor (r S)
Room + floor sensor (rFS)
Max. floor tempera-
ture
+35 °C +20 to +50 °C
Offset 0.0 °C -5.5 to +5.5 °C
Lowering in economy
periods
-5 °C -1 to -30 °C
Day of week 1 1 to 7
Time 00.00 24 hour clock
Timer Set Up to 336 settings/week
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14 Installation Guide

How to enter the basic configuration settings
1. Press and hold the button for 12 seconds
until “COdE” appears.
2. Turn the button clockwise until “0044”
appears.
3. Press the button once to confirm.
Network: How to specify whether you want to connect
this thermostat with other thermostats in a network
Please note that the slave units must be connected to the
master unit using the devinet terminals.
1. Define the thermostat as independent, master or
slave unit.
To define this unit as an independent
unit or if network is not used, choose
ALO.
To define this unit as the master unit in
the network, choose MAS.
ECtemp 550
Installation Guide 15

To define this unit as a slave unit in the
network, choose SLA.
Only one unit in the network can be defined as master
unit. All slave units will respond to and send informa-
tion to the master unit. Time, day of week and econo-
my periods will be controlled from the master unit. All
other settings must be specified for each slave unit.
No more than 32 units can be combined in a network
including independent units (even though these units
do not communicate with the master unit).
2. Press the button once to confirm your selection.
ECtemp 550
16 Installation Guide

Adaptive regulation: How to specify whether or not to
optimise this thermostat for the room by timing heat-
ing start/stop
1. Turn the adaptive function on or off.
To let the unit continuously collect updated room
data, choose AdAP.
This means improved performance (with compensa-
tion for e.g. sudden temperature drops in the room)
and precise timing so the selected temperature is ach-
ieved at the desired time.
To turn off the adaptive function, choose OFF
This means that the heating will not start/stop until
the specified time.
2. Press the button once to confirm your selection.
ECtemp 550
Installation Guide 17

Sensor: How to specify whether an external floor sen-
sor, the built-in room sensor or both is used to control
the floor heating
1. Turn the button to choose one of the following sensor
settings:
If both a room sensor and a floor sensor is
used, choose rFS.
This option is suitable for all rooms but
wet rooms. The thermostat must be in-
stalled in the same room as the floor sen-
sor and the heating elements.
If only a floor sensor is used, choose FS.
The built-in room sensor is not used. This
option is suitable for rooms in which a
constant floor temperature is required,
e.g. in a bathroom.
If only a room sensor is used, choose r S.
This option is not recommendable due
to an increased risk of overheating the
floor. The thermostat must be installed in
the same room as the heating elements.
2. Press the button once to confirm your selection.
ECtemp 550
18 Installation Guide

How to set the maximum floor temperature
Special condition: This setting only applies if a floor sen-
sor is used (the FS or rFS sensor option has been set).
1. Turn the button to change the tempera-
ture.
2. Press the button once to confirm your se-
lection.
Note: Please contact the floor supplier before changing the
maximum floor temperature and be aware of the following:
▪The floor temperature is measured where the 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.
ECtemp 550
Installation Guide 19

Thermal
resist-
ance
[m2K/W]
Examples of floor-
ing
Details Approximate
setting for
25˚C floor
temperature
0.05 8 mm HDF based
laminate > 800 kg/m328˚C
0.10 14 mm beech par-
quet
650 - 800
kg/m3
31˚C
0.13 22 mm solid oak
plank > 800 kg/m332˚C
< 0.17 Max. carpet thick-
ness suitable for
floor heating
acc. to EN
1307
34˚C
0.18 22 mm solid fir
planks
450 - 650
kg/m3
35°C
Offset: How to select an offset value for calibrating
the thermostat’s temperature display so the thermo-
stat shows the same temperature as another ther-
mometer in the room
Special condition: This option only applies if an installa-
tion with a room sensor is used.
1. Turn the button to specify an offset value
between -5,5°C and +5,5°C.
2. Press the button once to confirm your se-
lection.
ECtemp 550
20 Installation Guide