Tech Controllers EU-20 User Manual page 2

Principle of operation
The task of the regulator is to switch the pump on when the temperature
exceeds the pre-set value and to switch the pump off when the boiler
cools down (as a result of damping). It prevents unnecessary operation of
the device which, in turn, helps to save electricity (up to 60%, depending
on the boiler use) and prolongs the life of the device. Consequently, the
device is more reliable and the maintenance costs are reduced.
How to use the regulator
The pump activation temperature is set using a potentiometer (within
the range of 25˚C-85˚C). The pump is disabled if the actual temperature
drops by 2˚C below the pre-set value. It prevents regular pump activation
(which affects its durability) due to small temperature fluctuation.
Apart from the potentiometer, the regulator is equipped with a power
switch (if the device is switched on, the control light power goes on), a
switch to enable the pump manually (when the pump is enabled, Manual
mode control light goes on) and a control light labelled manual which
signalises the pump operation.
The regulator has a WT 1,6A tube fuse-link protecting the network.
How to install the regulator
The sensor should be installed in a proper place with the use of a cable
tie and protected from the influence of external factors with an insulating
tape. The device power cord should be connected in the following way:
blue (N) and brown (L) - 230V AC/50 Hz, yellow-green (protective)
should be earthed.
EU Declaration of conformity
Hereby, we declare under our sole responsibility that EU-20 manufactured
by TECH, headquartered in Wieprz Biała Droga 31,
34-122 Wieprz, is compliant with:
• Directive 2014/35/EU of the European Parliament and of the
Council of February 26, 2014 on the harmonisation of the laws of Member
States relating to the making available on the market of electrical
equipment designed for use within certain voltage limits (EU
Journal of Laws L 96, of 29.03.2014, p. 357),
• Directive 2014/30/EU of the European Parliament and of the
Council of February 26, 2014 on the harmonisation of the laws of Member
States relating to electromagnetic compatibility (EU Journal of Laws L 96
of 29.03.2014, p.79),
• Directive 2009/125/EC establishing a framework for the
setting of ecodesign requirements for energy-related products,
• the regulation by the Ministry of Economy of May 8, 2013
concerning the essential requirements as regards the restriction of
the use of certain hazardous substances in electrical and electronic
equipment, implementing provisions of RoHS directive 2011/65/EU.
For compliance assessment, harmonized standards were used:
PN-EN 60730-2-9:2011, PN-EN 60730-1:2016-10
Wieprz, 06.05.2019
3
2
1
10
9
1.Potentiometer
2. Control light indicating manual mode
3. Control light indicating power supply
4. Control light indicating pump operation
5. Power switch
6. Fuse 1,6A
7. Power supply
8. CH pump output
9. Temperature sensor
10.Manual mode switch
TECHNICAL DATA
NO SPECYFIKATION
1. Power supply
2. Maximum power consumption
3. Ambient temperature
4. Pump max. output load
5. Temperature measurement accuracy
6. Sensor thermal resistance
7. Fuse
4
5
6
8
230V ±10% /50Hz
2W
5÷50
0,5A
1°C
-30÷99°C
1,6A