ECtemp 330 (+5 to +45°C) Electronic Thermostat
Installation Guide
A front view of the Danfoss ECtemp 330 electronic thermostat. It is a white rectangular device with a black dial and a small circular indicator light on the front. The dial is marked with temperatures from 10 to 40°C. Below the main unit are screw terminals labeled 1 through 4.
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. © 2013 Copyright Danfoss A/S
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. Either 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
Technical Specifications
| Specification | Value |
|---|---|
| Operation voltage | 220-240V~, 50Hz |
| Standby power consumption | Max 0.25W |
| Relay: Resistive load | Max 16A / 3680W @ 230V |
| Relay: Inductive load | cos φ= 0.3 max1A |
| Sensing units | NTC 15kOhm at 25°C |
| Sensing values: 0°C | 42kOhm |
| Sensing values: 25°C | 15kOhm |
| Sensing values: 50°C | 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 |
| 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)
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.
- Always connect the thermostat to continuous power supply.
- Do not expose the thermostat to moisture, water, dust, and excessive heat.
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 it will be exposed to direct sunlight.
Follow the steps below to mount the thermostat:
- Click the thermostat on to the DIN rail attachment.
- Connect the thermostat according to the connection diagram.
Connection diagram showing terminals 5-8 for Sensor (labeled -5°C to +45°C) and terminals 1-4 for Mains (250V~, 16(1)A, 220-240V~ L/N). The diagram also shows the Danfoss logo and CE mark.
Settings
Wiring schematic illustrating the thermostat's internal connections. It shows inputs for Mains (L, N, PE) and outputs for Load (heating/cooling) and Timer/Night setback. An NTC sensor input is also depicted. The diagram indicates maximum load ratings for cooling (10A) and heating (16A).
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.
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.
- Floor manufactures often specify the max temperature 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 resistance [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 thickness suitable for floor heating | acc. to EN 1307 | 34°C |
| 0.18 | 22 mm solid fir planks | 450 - 650 kg/m³ | 35°C |
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 Danfoss. 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-authorized 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. A QR code is provided for accessing the full warranty text.
A red badge with a white number '2' and the text 'YEAR WARRANTY' is displayed.
WARRANTY CERTIFICATE
The Danfoss warranty is granted to:
- Address
- Purchase date
- Serial number of the product
- Product
- Art. No.
- *Connected output [W] (*Not mandatory)
- Installation Date & Signature
- Connection Date & Signature
- Stamp
Disposal Instruction
Recycling symbol ♻️, Battery symbol ?, Crossed-out bin ?️.
Company Information
Danfoss A/S
Nordborgvej 81
6430 Nordborg, Syddanmark
Denmark
Danfoss A/S
Climate Solutions danfoss.com +45 7488 2222
Any information, including, but not limited to information on selection of product, its application or use, product design, weight, dimensions, capacity or any other technical data in product manuals, catalogues descriptions, advertisements, etc. and whether made available in writing, orally, electronically, online or via download, shall be considered informative, and is only binding if and to the extent, explicit reference is made in a quotation or order confirmation. Danfoss cannot accept any responsibility for possible errors in catalogues, brochures, videos and other material.
Danfoss reserves the right to alter its products without notice. This also applies to products ordered but not delivered provided that such alterations can be made without changes to form, fit or function of the product.
All trademarks in this material are property of Danfoss A/S or Danfoss group companies. Danfoss and the Danfoss logo are trademarks of Danfoss A/S. All rights reserved.
Document reference: 08091311 & AQ088186468273en-010203. Produced by Danfoss © 07/2022
Product Label Details
Product: ECtemp 330 +5 to +45°C
Model/Part Number: 088L0445 EN
Specifications:
220-240V~
50-60Hz
+5°C to +45°C
16A/3680W@230V~
CE mark is present.
Product documentation is available.
Designed in Denmark for Danfoss A/S.
Barcode: 5703466130353
Electric Heating | Danfoss
