Date: review: approval: date: entry into force: signature: copy number: change sign: reason and purpose: set up the correct solar water cooler team to use, maintain and maintain sop to ensure the safe, reliable and efficient operation of the equipment. The date of approval of the revised number is effective for the ministry of production and technology, ministry of quality, qa qc, qc, sop use and maintenance range: this standard applies to the use, maintenance and maintenance of the solar water chiller unit. Functional operator: equipment manager for operating equipment strictly in accordance with this standard. The main power switch is connected 12 hours before the start-up of the unit responsible for the preparation of the implementation of this standard, so that the oil heater can reach the current lubricants with sufficient temperature. Check and determine that valves are correctly opened to prevent damage to compressors from abnormally high pressure. Operating at the magnetic switch of the water pumps and cooling towers to make the pumps and cooling towers operational and check their operation. Full opening of the liquid export cut-off valve of the condenser. The operating switch on the crew will be moved to the "on " position and the compressor will be activated in a few minutes as indicated in the "standard sequencing table " . Note: for compressor screws to move in the right direction, all units have phase protections. The shift can be determined by the following method: (1) the r, s, t phase is correctly connected by means of a phase table; (2) the reverse protection controls the compressor. In the event of the above, the power supply will be cut and the power supply of the crew, r., s., t., will be switched to one another. Operation of chilled, cooled water pumps and support equipment such as wind hoses and cooling towers to check whether frozen water and cooled water flows and other equipment are functioning properly. Set the required temperature for frozen water. Press the (on) button, the compression opportunity is activated, with reference to the standard sequence table. When the mainframe is stable, the discharge and inhalation pressure are checked. Refrigerant excretion and inhalation pressure curve. Check if the temperature controller is functioning properly. Check if the control and protective devices are normal. Sets 5 and 30 seconds for star-triangular start-up and offload running timers, respectively. The post-operational operation does not cut the power after the mainframe has ceased to operate during the regular operating season, otherwise the compressor oil heater cannot heat up to cause damage to the compressor. When the compressor has to be shut down for a long period of time to cut off the power supply, remember that 12 hours before the re-operator team should be powered to heat the oil inside the compressor. Maintenance should be careful that, in the event of an unfortunate fire, the main power supply should be immediately shut down and fire extinguishers applied to the oil and electricity fires. When the electrical panel is opened to adjust temperature, the main power source is shut down. If the sheet is closed, the crew cannot be operated. Regular maintenance according to “description” maintained the crew in good condition. Refrigerated exhaust parts are not exposed by hand and the temperature may exceed 100°c because the copper pipe on the side of the exhaust is heated by the refrigerant. All main switches will be closed if a colder leak or a cold/hot water leak is detected. In addition, if the crew cannot be stopped by the control switch, the main power switch can be shut down and stopped. Component compressors - the heli-snail straight compressor uses roll bearings and ball bearings. The operational life of the bearings is approximately 40,000 hours. Therefore, after the compression manoeuvres are performed every 40,000 hours, the bearings will need to be replaced. For details, please refer to the manual for maintenance of a semi-closer mill. Electrical devices - constant careful attention to work voltage, current and phase balance. Check if contact is due to loose connections. Control and protection devices - do not make any arbitrary adjustments to the set value unless the set value differs from the value in table 2. Lubricant compressor - the compressor has been injected with appropriate lubricant in the plant and the information is included in the “details of components” and compressor plates for technical material 1. Oil mirror observation: the unit operated with more than one third of the oil surface. After more than a long period of operation, the caco3 and other minerals in refrigerated and cooled water tend to sink inside the tube. If these sediments are increased, there will be over-consumption of electricity, such as excessive exhaust pressure or low inhaling pressure, indicating a large amount of sediment in evaporation and condensers. The following figure shows the extent of the cleaning required. When the aircraft is shut down for long periods of winter, it should be cleaned inside and outside, kept dry, recycle the refrigerant to the condenser and close the cooler liquid export cut-off valve to cover the crew and tighten the filling covers on the cut-off valve during the stoppage to prevent external environmental effects such as dust. The evaporation unit, the condenser and the water pipe are fully discharged to prevent the freezing of water during winter. It would be preferable to inject anti-frozen agents into water pipes. The initial start-up in the spring, after any long stoppage, must be prepared once the crew is re-started: a thorough inspection and clean-up of the crew. The spare parts to be replaced for the replacement of all electrical power lines should be ordered on the schedule of components. Do not simply replace any different parts. Refrigerated circulation filters: each time the crew runs, check if the filters are blocked. Refrigerated injections: injecting refrigerants should be carried out with attention to excretion and inhalation pressures, and operate cooling and freezing pumps. If leaks or cold-cycle replacement units are suspected, leak tests should be performed. In the case of refrigerant injection, follow the following instructions: when the refrigerant is fully leaked, the circulation system is completely vacuumed and water removed before injection. Breathing and injection of refrigerants by means of figure 1 (rcu40-240sc). Opens all closing valves. Pneumatic pipes are connected to high-pressure and low-pressure ends. Air and water are pumped out completely with vacuum pumps. Injection of appropriate refrigerants with required refrigerant weight indicated in the host sign. When the injection is stopped because the ambient temperature is too high, it is performed according to 3. 6. 2. 2 "when only a small amount of refrigerant is required". Operation of refrigerated water pumps, cooling of water pumps and running of the mainframe when only a small quantity of refrigerant is required, which, if required, will protect short circuits at low pressure. The pneumatic pipe road is connected to the low pressure end. Gradual injection of refrigerant gases into the refrigerant cycle system and detection of discharge and inhalation pressures. Normal operating pressure (refrigerant) low pressure: the evaporation unit normal operating pressure is as shown in the figure below 0. 25 mpa or above 0. 65 mpa indicates an abnormal state. High pressure: the normal exhaust pressure is as shown in the figure below 1. 2 mpa or above 2. 2 mpa indicating an abnormal state. Rcu40sc standard worksheet operating test and maintenance log type: rcu 40sc team out of plant
