intensity ICHS-120KC-5, Installation & Owner'S Manual

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6
installation & owner’s manual
l. All possible water pipes in the system to be chilled should be
under heat preservation, including inlet pipes and flanges of the
heat exchanger.
m. The outdoor chilled water pipelines should be wrapped with
an auxiliary heating belt for heat preservation, and the material
of the auxiliary heat belt should be PE, EDPM, etc., with
thickness of 20mm, to prevent the pipelines from freezing and
thus cracking under low temperature. The power supply of the
heating belt should be equipped with an independent fuse.
n. When the ambient temperature is lower than 2°C, and the
unit will be not used for a long time, water inside the unit should
be drained. If the unit is not drained in winter, its power supply
should not be cut off, and the fan coils in the water system must
be provided with three-way valves, to ensure smooth circulation
of the water system when the anti-freezing pump is started up in
winter.
o. The common outlet pipelines of combined units should be
provided with mixing water temperature sensor.
WARNING
● For the water pipeline network including filters and heat
exchangers, dreg or dirt may seriously damages the heat
exchangers and water pipes.
● The installation persons or the users must ensure the
quality of chilled water, and de-icing salt mixtures and air
should be excluded from the water system, since they may
oxidize and corrode steel parts inside the heat exchanger.
4.2 Connection drawing of pipeline system
Stop valve Pressure gauge Water flow switch Gate valve Flexible joint
Y-shaped filter Thermometer Circulating pump Check valve Automatic discharge valve
Symbol explanation
Fig. 4-1
Main unit
Expansion tank
Water replenishing
Dirt discharge valve
Differential pressure by-pass valve
Two-way valve
Three-way valve
Terminal
Auxiliary electric heater
6
installation & owner’s manual
l. All possible water pipes in the system to be chilled should be
under heat preservation, including inlet pipes and flanges of the
heat exchanger.
m. The outdoor chilled water pipelines should be wrapped with
an auxiliary heating belt for heat preservation, and the material
of the auxiliary heat belt should be PE, EDPM, etc., with
thickness of 20mm, to prevent the pipelines from freezing and
thus cracking under low temperature. The power supply of the
heating belt should be equipped with an independent fuse.
n. When the ambient temperature is lower than 2°C, and the
unit will be not used for a long time, water inside the unit should
be drained. If the unit is not drained in winter, its power supply
should not be cut off, and the fan coils in the water system must
be provided with three-way valves, to ensure smooth circulation
of the water system when the anti-freezing pump is started up in
winter.
o. The common outlet pipelines of combined units should be
provided with mixing water temperature sensor.
WARNING
● For the water pipeline network including filters and heat
exchangers, dreg or dirt may seriously damages the heat
exchangers and water pipes.
● The installation persons or the users must ensure the
quality of chilled water, and de-icing salt mixtures and air
should be excluded from the water system, since they may
oxidize and corrode steel parts inside the heat exchanger.
4.2 Connection drawing of pipeline system
Flexible joint Gate valve Water flow switch Pressure gauge Stop valve
Circulating pump Check valve Automatic discharge valve Thermometer Circulating pump Y-shaped filter
Symbol explanation
Fig. 4-1
Main unit
Expansion tank
Water replenishing
Dirt discharge valve
Differential pressure by-pass valve
Two-way valve
Three-way valve
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