Moisieienko, M. Karnaukhov, I.M. Mytsykov, A. Zelinsky, A.Y. JACoW Geneva, Switzerland 978-3-95450-182-3 10.18429/JACoW-IPAC2017-THPVA070 English 4607-4609 THPVA070 Contribution to a conference proceedings 2017 2017-05 http://dx.doi.org/10.18429/JACoW-IPAC2017-THPVA070 http://jacow.org/ipac2017/papers/thpva070.pdf Cooling system and temperature control technology elements of the linear electron accelerator of 100 MeV/100kW is a complex technological system composed of three subsystems: the cooling klystron gallery equipment (30 C ± 1), cooling of the accelerator tunnel equipment (30 C ± 1) and the cooling and temperature control accelerating sections and waveguide (40 ° C ± 0,2). The block diagram of cooling and temperature control of the linear electron accelerator of 100 MeV/100 kW, describes the basic principles to formulate requirements to the cooling systems. It describes the status of the installation, commissioning and testing of the cooling and temperature control of the accelerator - driver subcritical neutron source KIPT.