User's Manual of Fiber Laser Chiller
14
6.2 Waterway connection
Determine the piping layout direction according to the equipment import and export label,
in case the equipment cannot run normally.
The pipeline should be cleaned during internal construction to strictly avoid impurities.
Once impurities enter the system, it is easy to reduce the cooling capacity and may cause
faults of the water pump or refrigeration system.
Pipe connection: The connection method between the chiller and the laser is shown in FIG.
6. The inner diameter of the distribution pipe shall not be less than the diameter of the inlet
and outlet of the chiller.
Pipe resistance: The connection pipe between equipment should be the shortest distance,
avoid right Angle and bending, the total pressure drop ≤ 0.05mpa.
If metal lines are used, insulation measures should be taken to prevent energy loss.
Pipeline pressure must reach more than 1.5 times of water pump supply pressure.
Fig.6 Connection diagram of chiller and laser
6.3 Circuit connection
1.
Please refer to the wiring label of the chiller when wiring.
2.
Recommended reference standard for power cord diameter selection.
Rated current
/ A
≤5
≤10
≤15
≤25
≤35
≤50
Power line diameter
(copper wire)/mm
2
1.0
1.5
2.5
4.0
6.0
10.0
This data is provided in accordance with IEC 60204-1, for reference only.
The power cord must use standard cable.
Rated power refer to chiller nameplate.
3.The main circuit of power supply must be installed with appropriate leakage and overload
protection devices, and ensure the chiller is well grounded.
4.The allowable fluctuation of power supply voltage is less than ±10% and frequency fluctuation is
less than ±1Hz, and it should be far away from the electromagnetic interference source.
5.Connection of signal terminals: output passive dry node signals for traffic alarm and over
temperature alarm.
Length of one side≤5m
Length of one side≤20m
Low temperature backwater
High temperature
backwater
（
External
Light Road
）
Chiller
Laser
Cutting head
Switch
Note
：
Water pipe color: for chillers, blue is effluent, red is backwater