Refrigeration equipment start-up precautions
Please confirm the above contents again before the official start-up:
1, press the start compressor button, this time the cooling water pump will start running, please check the running voltage of the cooling water pump and the running start current in time whether it is normal or not, immediately after that, please check whether the import and export pressure of the cooling water pump is normal or not. The source of this article: refrigeration encyclopedia. Liquid supply solenoid valve is open, R22 liquid through the thermal expansion valve to the system evaporator liquid supply, a few seconds after the suction pressure back up to a certain value, the compressor will issue a kind of movement sound, the compressor started, its compressor starting current is the motor rated current 2 times, instantly turn to the normal compressor motor rated current.
2, when the compressor normal operation of the compressor oil heater will stop running, the electric heater indicator light will go out.
3, when the compressor is running, the coil or chiller in the warehouse will run and start to cool down.
4, when the cooling water temperature reaches 25 ℃, refrigeration wikipedia tip: here to see the set temperature oh, cooling tower fan will automatically open the operation, forced air convection to reduce the temperature of the cooling water, this time the operator needs to determine the fan's operating voltage, operating current and fan running sound is normal.
5, when the compressor is fully operational, it is necessary to confirm the operating voltage, operating current, compressor running sound. Refrigeration wikipedia tip: automatic unit is running a compressor at the beginning. When the compressor refrigeration capacity can not meet the external energy CPU issued to start the second compressor instructions to achieve the purpose of dual-head operation.
6, if the machine is a double-head refrigeration compressor unit, in the beginning of operation is to start a compressor, when the temperature sensor on the computer board detects the temperature curve is not cooling drive, the computer drives the second compressor to start running. When the temperature of the refrigeration system reaches the set requirements, the CPU unloads one compressor to run. When the temperature of the storage room completely reaches the set temperature, the CPU commands the first compressor to stop working and be in standby mode. When the second running temperature is high with the room set temperature, the CPU will start the first compressor to start running work.
7, the compressor system after normal operation, the operator will need to confirm the compressor exhaust pressure, exhaust temperature, return pressure, return temperature, compressor oil pressure, oil temperature, oil level, (refrigeration wikipedia tip: the oil level can not be lower than 1/3 of the oil cup) the oil color, the condenser inlet temperature, the condenser outlet temperature. These technical indicators should be in the normal range of compressor operation.
8, when the compressor runs for a period of time, go to observe the temperature of the warehouse cooling rate of the situation, the warehouse cooling rate is fast refrigeration compressor refrigeration capacity, the fan in the warehouse churning the airflow more fully. Also check the coiler box has no vibration sound, chiller has no noise and fan steering is correct, condensate pipe has no anti-water phenomenon.
9, when the warehouse temperature is close to the set value and the refrigeration compressor and full load operation, should check the system evaporation temperature and fan coiler air temperature, as well as the liquid supply liquid mirror liquid flow.
10, when the refrigeration compressor to cool the warehouse, the compressor operating cycle from one cycle to another cycle conversion, the need for operators to determine the compressor on and off the cycle time, it is best to record.
Xinxiang Yukun Refrigeration Technology Co. is a production and sales of refrigeration two apparatus parts and sheet metal products, mainly engaged in condenser, evaporator, heat exchanger, reservoir, filter drier, fin evaporator (condenser), stamping parts, sheet metal parts, aluminum tubes for refrigeration, etc.
Our company has always had strict quality control standards in the market of refrigeration and heat exchange equipment, focusing on providing customised services to our customers. Not only do we have high requirements for the selection of raw materials, but we also keep up to date with the latest production processes and have high testing standards.
Our company mainly produces products for:Fin Evaporator.Fin Type Condenser.Capillary Tube. Coolant Reservoir.Plate Reinforcement Parts.Stamped Parts.Aluminum Tube.Instrument Testing Equipment.
Supermarket Refrigeration Show Case Copper Condenser Coil
1. OEM or ODM can be accepted
2. Fin type: Louver or corrugated
3. Be customerized according to samples and drawings.
4. High quility and low price and energy saving 60% (CE, RoHS, EMC and ISO9001 certification) The CD series products can be used in Various specificantion Condensing Units .
They are air cooled heat exchangers for refrigeration system. They are divided in 4 group:CD,CDC,CDS and CDV.All the products have been tested on 2.8MPa air leakage,and the system is disposed of pollution,applicable to R22,R134a,R404A,R407C systems.
Our company mainly produces products for:Fin Evaporator.Fin Type Condenser.Capillary Tube.Aluminum Coolant Reservoir.Plate Reinforcement Parts.Stamped Parts.Aluminum Tube.Instrument Testing Equipment.
Supermarket Refrigeration Show Case Copper Condenser Coil
1. OEM or ODM can be accepted
2. Fin type: Louver or corrugated
3. Be customerized according to samples and drawings.
4. High quility and low price and energy saving 60% (CE, RoHS, EMC and ISO9001 certification) The CD series products can be used in Various specificantion Condensing Units .
