Comprehensive services in areas of testing, inspection, certification and training.

SZU‘s measures in connection with Covid-19

We are constantly monitoring and evaluating the COVID-19 situation. We have taken a number of measures to help minimize the risk of infection. We do everything we can to ensure that these measures have the least impact on the operation of our business and on running orders. Our main goal in this situation is to protect the health of our employees and customers.

More information:

Heat pumps

We are an accredited testing laboratory which performs tests according to relevant product standards. As the Notified Body 1015 we provide comprehensive services in area of heat pumps pursuant to Government Regulation 163/2002 Coll. (Selected construction products) and European directives.

Our laboratory is registered and recognized within the framework of the EHPA (European Heat Pump Association). We are an accredited test laboratory and a certification body for the systems MCS (The Microgeneration Certification Scheme) and Heat pump KEYMARK and also empowered accredited test laboratory Eurovent Certita Certification and LCIE (NF mark).  We actively participate in joint meetings of the EHPA and of Heat pump Keymark.

Our Test Station has been included amongst the prestigious accredited test laboratories approved by DIN CERTCO (Reg. No. PL271). Our test reports can therefore be used to obtain this certification mark of quality. Marking your products with DIN CERTCO marks will enhance their credibility not only on the European market but also on the other markets worldwide.

Our laboratories for testing of heat pumps have available state-of-the-art facilities. Testing takes place in a fully automated mode, under supervision of a test engineer.

In the field of testing and certification of heat pumps, we provide these services:

Heat pumps (warming-up heating water)
Type Capacity DHW
Air-to-water (*) 45 kW 2XL
Water-to-water 110 kW 3XL
Ground-to-water 90 kW 3XL
DX-water 40 kW 3XL

(*)Testing within the air temperature range of -30 °C to 45 °C; humidity: 35 to 95 %
DHW - Domestic Domestic Hot Water (designation of the units for hot service water)
DX - Direct Exchange (the system utilising the „direct exchange“ of heat with the earth by circulating refrigerant through copper piping)


We perform tests in accordance with these standards:

ČSN EN 14511, ČSN EN 14825, ČSN EN 255, ČSN EN 16147, ČSN EN 15879, 
ČSN EN 378, ČSN EN 12102, ČSN EN 9614, ČSN EN 60335, ČSN EN 61000,
ČSN EN 55014, etc.

We work in Technical Standardization Committee TNK 112 (Refrigeration equipment).

Who can you reach out to?

Mario Jankola

Mario Jankola

Head of Heat Pumps and Cooling
Equipment Department
+420 541 120 413
+420 739 036 837


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