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R & D Center

CNAS Laboratory Accreditation

Wotech Test Center is accredited in accordance with ISO/IEC17025:2005, General Requirements for the Competence of Testing and Calibration Laboratories by CNAS(China National Accreditation Service for Conformity Assessment) and gained certificate in 2019, equating to the international mutual recognition of International Laboratory Accreditation Cooperation(ILAC) as third independent party test organization for heat pump performance tests.

Test Center Applying Rules

Product Development
Products are tested at different working conditions to ensure the best performance and reliability of the system.
Product Stability & Optimization
Any main components are changed due to supply or quality heat pump must be re-tested before production to ensure system stability and performance
Quality issue solutions
When there is quality issue that occurs at particular dry bulb, wet bulb and water simulated tests will be raised to find out the cause and give quick solutions.

Enthalphy Laboratories

Nos. of Enthalphy Labs: 6 
Tested Capability: 3~240kw 
Air Temp. regulated : -30 ~45 ℃ 
Water Temp. regulated: 0 ~65 ℃ 
Air flow regulated: 15000~66000m3/h

Chamber No. 1 , No. 2 and No. 3 for models upto 50kw Chamber No. 1 dedicated for R290

Chamber No. 4 and No. 5 for models upto 150kw

Chamber No. 6 for models upto 300kw

Development Test Standard– Pool Heat Pump
 8 test conditions 
    a. 5 performance tests (4 heating & 1 cooling) ( A27/W28, A15/W28, A7/W28, A2/W28, A35/W26) 
    b. 2 running limit tests (A35/W40 max. heating , A35/W31 max. cooling ) 
    c. 1 Low pressure limit test (A2/W5, low ambient and water temperature)
Development Test Standard – heat pump for space heating
 23 test conditions in total
    a. 11 performance tests (7 heating & 2 cooling ) 
         Heating : A7/W35, A7/W45, A7/W60, A20/W45, A2/W35, A2/W45, A2/W60 
         Cooling : A35/W7, A35/W18 
    b. 4 running limit tests 
         Max. heating A43/W60 , Max. cooling A43/W30 
         High pressure test A-7/W60, Low pressure test A-10/W15 
    c. 10 EN-14825 ErP tests ( incl. W35 & W55 )

Reliability Running Test Chambers

Object : Enthalphy tested model before mass production 
Reliability Test: Non-stop running 
Duration : Upto 2000 hrs 
Purpose: To ensure performance reliability

Acoustic Chamber

Acoustic pressure level range: 20~120dB(A) 
Measurement accuracy: 0.1dB(A) 
Maximum testable heating capacity: 240Kw 
Maximum testable size: 2.5m in width,2.5m in height

Vibration Test Platform

Test duration: 4 hrs
Maximum weight : 2000kg 
Accelerated speed 3.2 m/s² 
Simulated speed 20-60km/h
     Address:No.34, South Road, Yongfeng Industrial Park, Lunjiao, Shunde, Foshan, Guangdong PRC.




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