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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 bottom of the thermostat.
1 : HT (heating)
1 : HT (heating)
2 : CL (cooling)
C : CM
C : CM
Function
The long capillary tube (and the sensor tip), which is firmly connected to the thermostat,
contains a liquid that expands when it is heated. There is a pressure sensor at the end of the
capillary tube in the thermostat, 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.
Thermostat setting
The temperature at which the thermostat breaks the circuit can be adjusted using the
adjustment spindle.
Because this is not an electronic control, it is not possible to set thermostat precisely to a
specific temperature.
The changeover contact enables control both in the cooling and heating directions, depending on
which thermostat and which thermostat contacts are used for the connection (C + 2 or C + 1).
Care and cleaning
• Always disconnect the product from the power supply before cleaning it.
• Never use aggressive detergents, rubbing alcohol or other chemical solutions, as these
may damage the housing or cause the product to malfunction.
• Use a dry, lint-free cloth to clean the product.
Disposal
This symbol must appear on any electrical and electronic equipment placed on the
EU market. This symbol indicates that this device should not be disposed of as
unsorted municipal waste at the end of its service life.
Owners of WEEE (Waste from Electrical and Electronic Equipment) shall dispose
of it separately from unsorted municipal waste. Spent batteries and accumulators,
which are not enclosed by the WEEE, as well as lamps that can be removed from
the WEEE in a non-destructive manner, must be removed by end users from the
WEEE in a non-destructive manner before it is handed over to a collection point.
Distributors of electrical and electronic equipment are legally obliged to provide free take-back
of waste. Conrad provides the following return options free of charge (more details on our
website):
• in our Conrad offices
• at the Conrad collection points
• at the collection points of public waste management authorities or the collection points set
up by manufacturers or distributors within the meaning of the ElektroG
End users are responsible for deleting personal data from the WEEE to be disposed of.
It should be noted that different obligations about the return or recycling of WEEE may apply in
countries outside of Germany.
Circuits
2 : CL (cooling)
C : CM
Technical data
Contact rating ....................................................... 250 V/AC, 50/60 Hz, 20 A
Capillary tube and sensor material ....................... stainless steel
Capillary tube length ............................................. approx. 1 m
Capillary tube bending radius ............................... min. 5 mm
Item no.
Control range
Accuracy
Switching hysteresis
Sensor temperature
Thermostat housing temperature
Dimensions (W x H x D)
Weight
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method (e.g. photocopying, microfilming or capturing in
electronic data processing systems) requires prior written approval from the publisher. Reprinting, also in part, is
prohibited. This publication reflects the technical status at the time of printing.
Copyright 2022 by Conrad Electronic SE.
2522215
2522217
+50 to +320 °C
+50 to +200 °C
± 11 °C
± 8 °C
7 °C ± 4
6 °C ± 3
max. 340 °C
max. 220 °C
max. 120 °C
max. 120 °C
46 x 35 x 45 mm
46 x 35 x 45 mm
93 g
93 g
*2522215_2522217_V1_1022_02_dh_mh_en
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