Delivery Content; Safety Instructions - BASETech 2226739 Mode D'emploi

Operating Instructions
Installable Thermostat
Item No. 2226739
Intended Use
The thermostat is intended for controlling the temperature (e.g. in connection with radiators)
within a temperature range of 0 ºC to +120 ºC.
It is intended for indoor use only. Do not use it outdoors. Contact with moisture, e.g. in
bathrooms, must be avoided under all circumstances.
For safety and approval purposes, you must not rebuild and/or modify this product. If you use
the product for purposes other than those described above, the product may be damaged.
In addition, improper use can result in short circuits, fires, electric shocks or other hazards.
Read the instructions carefully and store them in a safe place. Make this product available to
third parties only together with its operating instructions.
This product complies with the statutory national and European requirements. All company
names and product names are trademarks of their respective owners. All rights reserved.

Delivery Content

• Thermostat with capillary sensor
• Operating instructions
Up-to-date Operating Instructions
Download the latest operating instructions at www.conrad.com/downloads or
scan the QR code shown. Follow the instructions on the website.
Explanation of Symbols
The symbol with the lightning in the triangle is used if there is a risk to your health,
e.g. due to an electric shock.
The symbol with the exclamation mark in the triangle is used to indicate important
information in these operating instructions. Always read this information carefully.
The arrow symbol indicates special information and advice on operation.

Safety Instructions

Read the operating instructions carefully and especially observe the safety
information. If you do not follow the safety instructions and information on
proper handling in this manual, we assume no liability for any resulting personal
injury or damage to property. Such cases will invalidate the warranty/guarantee.
a) General Information
• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. This may become
dangerous playing material for children.
• Protect the appliance from extreme temperatures, direct sunlight, strong jolts, high
humidity, moisture, flammable gases, steam and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, take it out of operation and
protect it from any accidental use. Safe operation can no longer be guaranteed
if the product:
- is visibly damaged,
- is no longer working properly,
- has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stresses.
• Please handle the product carefully. Jolts, impacts or a fall even from a low height
can damage the product.
• In commercial institutions, the accident prevention regulations of the employer's
liability insurance association for electrical systems and operating facilities are to
be observed!
• Consult an expert when in doubt about the operation, safety or connection of the
appliance.
• Maintenance, modifications and repairs must only be completed by a technician
or an authorised repair centre.
• If you have questions which remain unanswered by these operating instructions,
contact our technical support service or other technical personnel.
b) Installation
• The product may only be installed by a qualified technician (e.g. electrician)
who is familiar with the relevant regulations (e.g. VDE, German electrical wiring
regulations)!
Improper work, carried out on the mains voltage, endangers not only your own life
but also the life of others!
If you do not have the expertise required for the installation, do not install it
yourself but ask a qualified technician.
• The thermostat may be mounted and operated only in enclosed housings. Only
the shaft for the dial may lead outside. The provided dial (or another suitable dial)
must be mounted on the shaft.
• The specified safety distance between live components carrying mains voltage
(contacts or connections on the thermostat, etc.) and exposed parts of the
enclosure (the device in which the thermostat is installed) must be maintained
at all times.
• The device in which the thermostat is to be installed must be separated from
the mains voltage and all other cables/leads. Disconnect the mains plug from the
mains socket.
If the device does not have a mains plug but is permanently connected to the
mains voltage, switch off the corresponding circuit breakers and also the appliance
leakage circuit interrupter so that the mains supply line is disconnected at all poles
from the mains voltage.
Secure it against unauthorised reconnection, e.g., with a danger sign.
Check there is no voltage with a suitable measuring instrument (e.g. a digital
multimeter).
• Capacitors in the device in which the thermostat is to be installed can remain
charged for a long time even after the device is switched off and disconnected
from the mains voltage.
There is a risk of a life-threatening electric shock!
• Do not use the thermostat in rooms or under adverse ambient conditions where
combustible gases, vapours or dust are or may be present! There is a risk of
explosion!
• The input power of the thermostat (see "Technical Data") must not be exceeded.
• When shifting the capillary tube and also when attaching the sensor, make sure
that neither the capillary tube nor the sensor is kinked, pinched or otherwise
damaged.
The capillary tube and also the sensor cannot and may not be shortened or cut off.
Do not turn any screws or anything similar through the sensor tip.
Doing so renders the thermostat unusable!
Operation
a) Installation and Connection
Observe the safety instructions!
The thermostat is equipped with three connections for cable
lugs; for this, also observe the overprint on the underside of
the thermostat.
If in doubt, leave the installation and connection to a specialist.
b) Operating Principle
In the long capillary tube (and the sensor tip), which is permanently connected to the thermostat,
there is a liquid that expands upon warming. At the end of the capillary tube in the thermostat
there is a pressure sensor, which is mechanically preloaded by the adjustment spindle.
A heating device, which is activated via the switch contact, increases the temperature; the liquid
in the installed sensor warms up and expands.
The control element on the pressure sensor breaks the circuit, when it reaches a given
temperature.
The temperature falls again and the liquid in the capillary tube contracts.
At a given temperature, the circuit closes again and the process is repeated.
The temperature at which the thermostat breaks the circuit can be adjusted using the
adjustment spindle.
Since this is not an electronic control, it is not possible to set thermostat exactly to a specific
temperature.
The switch contact allows control of both cooling and heating, depending which
thermostat contacts are used to make the connection (C + 2 or C + 1).