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–EIMWC00803-21_01EN - 12/57
37. The accidental discharge of refrigerant in a closed area can cause a lack of oxygen and, therefore, the risk of
asphyxiation: install the machinery in a well ventilated environment according to EN 378 -3 and the local
regulations in force.
38. The installation must comply with the requirements of EN 378 -3 and the local regulations in force; in the case of
installations indoors, good ventilation must be guaranteed and refrigerant detectors must be fitted when
necessary.
1.2
Description
Daikin Centrifugal Water Chillers are complete, self-contained, automatically controlled fluid chilling units. Each unit is
completely assembled and factory tested before shipment. Models DWSC are cooling-only.
In the DWSC, each unit has one compressor connected to a condenser and evaporator. Information in this manual referring
to all DWSC units except where specifically noted.
The chillers use refrigerant R-134a, R-513A and R-1234ze to reduce the size and weight of the package compared to
negative pressure refrigerants, and since these refrigerants operates at a positive pressure over the entire operation range,
no purge system is required.
The controls are pre-wired, adjusted and tested. Only normal field connections such as piping, electrical and interlocks,
etc. are required, thereby simplifying installation and increasing reliability. Most necessary equipment protection and
operating controls are factory installed in the control panel.
The basic sizes of units are the 079, 087, 100, 113 and 126. They provide a cooling capacity range from 750 kW to
4500 kW.
