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.
ECtemp 550
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
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