T9901018-1
Page 23 of 26
Annual Service of the Dry Cooling System
Always disconnect and isolate the mains electricity supply both at the local
electrical supply to the Thermoscreens Dry Cooling Unit and at the Mitsubishi
Electric Outdoor Unit before servicing, maintaining or repairing the Unit.
In addition to the 3 monthly checks as described above carry out the following service
procedures:-
Clean the casing of the Thermoscreens dry cooling unit using a damp cloth. Do not use
scouring cream products.
Visually inspect the pipe work system for water leaks and repair as necessary.
Check the condition of the pipework insulation and repair as necessary.
Check for loose electrical connections in the Thermoscreens dry cooling unit and in the
Mitsubishi Electric outdoor unit and tighten connections if necessary.
Clean the water dirt trap device in the chilled water pipework.
Check the concentration of anti-freeze/inhibitor in the chilled water system and replenish
if necessary.
Test the operation of the dry cooling system as described from Page 18 onwards.