Danfoss ECtemp 330 User manual
ECtemp 330 (+5 to +45°C)
Electronic Thermostat
Installation Guide
electricheating.danfoss.com
ECtemp 330 (+5 to +45°C)
Installation Guide2
Danfoss A/S is not liable or bound by warranty if these in-
structions 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.
© 2013 Copyright Danfoss A/S
ECtemp 330 (+5 to +45°C)
3Installation Guide
1 Introduction
ECtemp 330 is an electronic thermostat to be installed in
electric cabinets with DIN rail attachment. The thermostat
must be installed via an all-pole disconnection switch. Ei-
ther a floor sensor or an external room sensor must be used
to measure and control the desired temperature.
The thermostat has a button to adjust the temperature
setting with a scale from +5 to +45°C. An LED indicator
shows standby periods (green light) and heating periods
(red light).
More information on this product can also be found at:
ectemp.danfoss.com
Table of Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . 3
1.1 Technical Specifications . . . . . . . . . . . 4
1.2 Safety Instructions . . . . . . . . . . . . . . . 5
2 Mounting Instructions . . . . . . . . . . . . . . . 6
3 Settings . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Warranty. . . . . . . . . . . . . . . . . . . . . . . 10
5 Disposal Instruction . . . . . . . . . . . . . . . 12
ECtemp 330 (+5 to +45°C)
Installation Guide4
1.1 Technical Specifications
Operation voltage 220-240V~, 50Hz
Standby power consumption Max 0.25W
Relay:
Resistive load
Inductive load
Max 16A / 3680W @ 230V
cos φ= 0.3 max1A
Sensing units NTC 15kOhm at 25°C
Sensing values:
0°C
25°C
50°C
42kOhm
15kOhm
6kOhm
Hysteresis ± 0.2°C
Ambient temperature 10°C to +50°C
Lowering in economy periods -5°C
Temperature range +5 to +45°C
Cable specification max 1x4mm² or 2x2,5mm²
Ball pressure temperature 75°C
Pollution degree 2 (domestic use)
Type 1C
Storage temperature -20°C to +65°C
IP class 20
ECtemp 330 (+5 to +45°C)
5Installation Guide
Protection class Class II -
Dimensions 86 x 36 x 58mm
Weight 83g
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.
• The sensor is to be considered as live voltage. Have
this in mind if the sensor must be extended.
ECtemp 330 (+5 to +45°C)
Installation Guide6
• 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:
• Install the thermostat in an electric cabinet with DIN
rail attachment or a separate DIN attachment accord-
ing to local regulation on IP classes.
• Do not place the thermostat in a way that it will be
exposed to direct sunlight.
Follow the steps below to mount the thermostat:
1. Click the thermostat on to the DIN rail attachment.
2. Connect the thermostat according to the connection
diagram.
+5°C to
+45°C
ECtemp 330 (+5 to +45°C)
7Installation Guide
N
L
PE
The screen of the heating cable must be connected
to the earth conductor of the power supply cable by
using a separate connector.
Note: Always install the floor sensor in a conduit in
the floor.
3. Turn on the power supply.
3 Settings
If a floor sensor is used, please 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.
ECtemp 330 (+5 to +45°C)
Installation Guide8
• Floor manufactures often specify the max tempera-
ture on the top surface of the floor (usually 27-28˚C).
• Always use a floor sensor to control floor heating.
Without a floor sensor, the temperature control may
be less accurate and you risk overheating the floor.
Thermal
resist-
ance
[m²K/W]
Examples of
flooring
Details Approximate
setting for
25˚C floor
temperature
0.05 8 mm HDF based
laminate
> 800 kg/m³ 28˚C
0.10 14 mm beech
parquet
650 - 800
kg/m³
31˚C
0.13 22 mm solid oak
plank
> 800 kg/m³ 32˚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
ECtemp 330 (+5 to +45°C)
9Installation Guide
ECtemp 330 (+5 to +45°C)
Installation Guide10
4 Warranty
A 2-year product warranty is valid for:
• thermostats: ECtemp 330 (+5 to +45°C).
Should you, against all expectations, experience a problem with your Danfoss
product, you will find that Danfoss offers Danfoss warranty valid from the date
of purchase on the following conditions: During the warranty period Danfoss
shall offer a new comparable product or repair the product if the product is
found to be faulty by reason of defective design, materials or workmanship. The
repair or replacement.
The decision to either repair or replace will be solely at the discretion of Dan-
foss. Danfoss shall not be liable for any consequential or incidental damages
including, but not limited to, damages to property or extra utility expenses. No
extension of the warranty period following repairs undertaken is granted.
The warranty shall be valid only if the WARRANTY CERTIFICATE is completed
correctly and in accordance with the instructions, 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 filled in, stamped and
signed by the authorized installer performing the installation (Installation
date must be indicated). After the installation is performed, store and keep the
WARRANTY CERTIFICATE and purchase documents (invoice, receipt or similar)
during the whole warranty period.
Danfoss warranty shall not cover any damage caused by incorrect conditions of
use, incorrect installation or if installation has been carried out by non-author-
ized electricians. All work will be invoiced in full if Danfoss is required to inspect
or repair faults that have arisen as a result of any of the above. The Danfoss
warranty shall not extend to products which have not been paid in full. Danfoss
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.
For full warranty text please use QR code
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