In the summer HANS GS reminds you Please maintain your laser cutting machine chiller

Now into the hot summer, laser cutting machine work in high temperature environment need to pay attention to safety, beware of high temperature burned laser source.At this point, the function of the chiller is very important. Because the chiller is the core to control the temperature of the laser cutting machine.HANS GS reminds you please maintain your laser cutting machine chiller.

1, the compressor overload warning light alarm. Poor heat dissipation can lead to condensate condensing temperature and the corresponding condensing pressure is too high, so that the pressure controller high-pressure part of the action, the compressor overload protection, due to compressor downtime will affect the normal use of customers. The chiller should be placed in a well ventilated, heat dissipation better position.
2, pressure gauge abnormalities. When the normal operation of the chiller, the high pressure should not be greater than 2.0MPA, if this pressure, indicating the condenser heat dissipation, the treatment is high-pressure gas cleaning condenser heat sink dust, no pressure gauge equipment regularly clean the condenser heat Plate; low pressure should not be less than 0.2MPA, if less than this pressure, indicating that the condenser has leakage of fluoride or throttle parts of the phenomenon of dirty blocking.

3, the cooling effect is reduced. Long-term non-cleaning tank, the tank inside the evaporator will produce micro-organisms caused by poor exchange of hot and cold, affecting the cooling effect. Ask the customer to regularly clean the water tank and change the water in general to replace the pure water in January, and at the same time cleaning the water tank (with detergent cleaning) to ensure that the chiller water clean.
4, water pressure alarm. Water pressure is about 0.3MPA when the normal state, abnormal traffic alarm output will be caused. In order to avoid abnormal chiller flow, please check the filter and the tank inside the filter is a dirty phenomenon.
The solution of the chiller failure does not cool

Chiller does not cool: observe the chiller control panel above the press overload display.
1.Display: Display press overload generally have 3 cases, high voltage overload, low voltage overload and current overload.

A. Press the pressure controller reset button to cancel the press overload display can be judged as high voltage overload.
There are several reasons for high pressure overload, the fan does not turn, the solenoid valve card can not open, the equipment is not ventilated poor heat, the condenser dirty block.

Troubleshooting: the chiller placed in a well ventilated, heat dissipation better position, with about 1MPA atmospheric pressure blowing condenser heat sink on the dust, and then observe the compressor after the high pressure is less than 2MPA, fan does not turn and solenoid valve card Belong to the accessories, you can replace it.
B. Observe the pressure gauge, high pressure and low pressure below 0.2MPA, can be judged as low pressure overload.
Like this situation, that is, equipment fluorine system must be leaked fluoride.
Troubleshooting: the equipment to check the leak, the leak to find after the trap, take the time, pressurized oil, fluoride, fluoride on the nameplate marked by the weight of the quantitative plus, according to the pressure of professionals fluoride.
C. Through the thermal overload reset button to cancel the press overload display, can be judged as current overload.
Failure reason: current overload is the compressor current exceeds the rated current, and overload protection. Under normal circumstances only the compressor phase and the ambient temperature is too high will lead to current overload.

Troubleshooting: to improve the working environment, check the reasons for the lack of compressor, the first three-phase resistance to detect the compressor is normal (three-phase balance, resistance is about 5Ω normal), is not normal compressor is broken, check the press line is There is a bad contact and AC contactor is missing phenomenon.

No display after power on
First observe the phase sequence relay work indicator, if only a light, it means that the three-phase power is reversed, in the power to replace any two-phase on it. If the lights are bright, the controller does not work then check the phase of the regular opening point whether there is electricity, no electricity that phase sequence is broken, need to be replaced; there is electricity, then check the controller power supply is there, there are If the controller does not work, the controller is broken.

Traffic alarm
Flow alarm is the lack of traffic, flow switch action.
There are three main causes of failure 1. External resistance is too large, backwater flow is small, the alarm set value is too large, you can adjust the flow switch to solve this problem; 2. Pump internal air. Troubleshooting: In the case of power failure, unscrew the emptying screws, water overflow, and then tighten. 3. Filter and tank internal filter dirty block. Troubleshooting: Replace the filter and wash the water filter.

Water level alarm
Water level alarm is the tank water level is insufficient to produce a kind of alarm. When the water level alarm, the first observation of the water tank is not more than the water level switch, if not the water will fill, the water level more than the water level switch also alarm, check the water level of the float is stuck, will be a few activities, if But also the alarm that is the water level switch is broken or the controller is broken.

Over temperature alarm
There is over-temperature alarm, under normal circumstances is the current temperature is higher than the alarm value or lower than the alarm value of the lower limit. After the alarm, first check the water temperature inside the tank and the temperature controller shows the temperature consistent, if not consistent, that is, the controller or temperature control probe is faulty, need to be replaced. If consistent, then it is necessary to observe the ultra-high temperature alarm or ultra-low temperature alarm, ultra-high temperature alarm on the first chiller without cooling the troubleshooting method step by step treatment, ultra-low temperature alarm to check the compressor refrigeration conditions to see if There is no disconnection of the open, the controller set the ultra-low temperature alarm factory setting is 4 degrees, ultra-high temperature is 35 degrees, the ambient temperature is higher than 35 degrees or less than 4 degrees, there will be over-temperature alarm.