The installation of the cold and hot shock test chamber is a crucial step in ensuring stable equipment performance and extending service life. It requires comprehensive consideration of various factors such as environmental conditions, electrical configuration, equipment layout, and subsequent maintenance. The following provides a detailed explanation from three stages: pre installation preparation, equipment positioning and fixation, and system connection and debugging:
1、 Environmental preparation before installation
1. Space selection requirements: Priority should be given to indoor dry and well ventilated areas, avoiding direct sunlight or being close to heat sources such as stoves and heaters. At least 30cm of operation and maintenance space should be reserved around the equipment to ensure effective heat dissipation of the condenser. If the ambient temperature is easily affected by seasons (such as high temperatures in summer or severe cold in winter), it is recommended to equip an air conditioning system to control the room temperature within the range of 5-30 ℃ to reduce equipment load fluctuations.
2. Ground and structural treatment: The installation ground should be level, sturdy, and able to withstand the weight of the equipment (usually 300-500kg). If the ground is uneven, adjust the bottom adjustable foot pad or repair the ground to ensure equipment balance. For water-cooled models, it is also necessary to consider the slope design of the drainage pipeline to avoid wastewater backflow.
3. Power and gas supply configuration: Special circuits should be laid in advance according to the equipment power. The air switch capacity is generally 63A or 125A, and copper core cables with an area of 16 square millimeters or more should be equipped. The pressure of the gas source should be stable between 1-6kg, and a filter should be installed at the interface to prevent impurities from entering the pipeline.
2、 Equipment handling and positioning specifications
1. Anti vibration and tilt control: During transportation, severe vibration or inversion is strictly prohibited, and the tilt angle should not exceed 45 ° to avoid refrigerant leakage or compressor damage. It is recommended to use original shock absorbers and avoid moving equipment with fragile parts such as handheld wires and motors.
2. Positioning and fixing adjustment: After the equipment is in place, it needs to be adjusted horizontally through the four adjustable flat feet at the bottom to ensure that the box is stable and not shaking. Maintain a distance of at least 10cm between the back and the wall to prevent dust accumulation from affecting heat dissipation efficiency. For large models, it is necessary to use expansion bolts to fix the base and reduce operational vibration noise.
3、 System connection and debugging verification
1. Connection between water and electricity and pipelines
-Humidification system water injection: Pure water or distilled water should be added to the water tank, and the water level should be controlled below 70% to avoid overflow and corrosion of internal components.
-Cooling water circulation: Water cooled models need to be connected to pre treated cooling water, and underground water is prohibited to prevent scaling and blockage of pipelines.
-Sealing test: All interfaces (such as drainage pipes and air supply joints) need to undergo pressure testing to ensure no leakage.
2. Electrical wiring and safety protection: Connect the power supply according to the wiring diagram provided by the manufacturer and install a leakage protection device. Voltage stabilizers (such as autotransformers) should be installed in areas with unstable voltage to prevent compressor burnout due to low voltage. Communication ports (such as RS485) should be kept away from strong electromagnetic interference sources to ensure stable data transmission.
3. Calibration and functional testing
-Sensor calibration: Use a standard thermometer to perform multi-point calibration on the sensors inside the box, with an error range of ≤± 0.5 ℃.
-Cold and hot shock test: Run the high and low temperature cycles without load (such as -40 ℃ →+150 ℃), and record whether the temperature rise and fall rate meets the nominal value (usually ≥ 5 ℃/min).
-Safety interlock check: Verify whether the heating automatically pauses when the box door is opened to prevent operator burns.