DX type water-cooled screw chiller (PCB Control) MCAC-CTSM-2014-03
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connection of the temperature sensor. Common two-core cable (2×0.75mm2) shall be used for
the connection of flow switch to connect to the NO contact of the switch, i.e. the opening point
when waterless. Two buttons can be connected to the external of remote start and stop.
(9) If the customer desires the linked control of the water pump, connect the water pump as shown
in the diagram, where an intermediate relay is required. If the function of linked control of water
pump is not needed, ensure that the water pump is started before starting the machine.
CAUTION: An independent power supply box needs to be equipped with the power supply of
the water pump.
(10) The wiring ports for remote start/stop, flow switch, cool/warm switch, water pump linked control,
alarm indication, etc. are reserved in the electrical cabinet of the unit.
(11) Passive inching button is used for remote start and stop, and the flow switch must be
connected to the NO contact, or the machine cannot be started.
Passive holding switch is used for cool/warm switch, e.g. common selection switch. Controls of
large power electrical appliances such as water pump and user electric heating must be
interfaced with a relay, or the PCB might be burned. Other outputs can be directly connected to
indicator lamps or alarms.
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