In October 2020, the specialists of JT Unimetal carried out the second phase of reconstruction and automation of the centralized heating boiler house for the Technical School in the town of Viski, Latvia. The main target of works was to upgrade the boiler house systems up to the operator’s free level.

Client: Municipality "Viski", Daugavpils region
Power: 2.5MW
System parameters: 110C / 6bar
Fuel: Wood chips

This time our scope included the following works:
• automation of boiler hydraulic piping
• automation of the fuel supply system
• design, manufacturing, and installation of an automatic control cabinet
• operator’s room setup
• boiler house remote control system upgrade
• installation of the heating unit and automatic recharge of the heating system (storage tank of 1100l)
• replacement of frequency converters of pumps
Stated works were followed by the scope implemented during the first phase:
• dismantling of existing fuel supply mechanisms and installation of new screw feeders
• integration of new fuel feeding mechanisms into the existing fuel handling system
• service platforms adjustment and installing additional platforms
• changing the existing control system of the boiler room in order to:
o improves the efficiency of the combustion process with different types of fuel and different regimes
o change and improve access levels to provide remote control and reduce staff presence.
• start-up, test and adjustment of the reconstructed fuel supply system
• preparation of technical and executive documentation
• staff training