Tel: 010-57286377 13391817494 (08: 00-22: 00 7 × 14 hours) Jiang Jing Wei thick right refrigeration - Professional refrigerant, refrigeration oil and HVAC accessories, refrigeration supplies to do a one-stop supplier of high quality! Our commitment: to provide genuine quality nourishment for refrigeration HVAC system! Beijing Jing Wei Sheng Technology Co., Ltd. Product Model: B100 20L Bitzer refrigeration oil, BITZER, B100 20L Products: Bitzer Bitzer compressor refrigeration oil original Bitzer Bitzer piston compressors and screw compressors for refrigeration oil, corresponding models are as follows: piston compressor: B5.2 dedicated to R22 refrigerant BSE32 / 55 dedicated to 404A, 134a and other environmentally friendly HFC refrigerant screw compressor: B100, B170, B320, dedicated to the R22 refrigerant BSE170 dedicated to 404A, 134a and other environmental HFC refrigerants BITZER semi-hermetic refrigeration compressor oil change practices I. Bitzer refrigeration oil change conditions: 1, air-conditioning unit to work long hours, the compressor has reached the maintenance time (2000 hours to run the unit for the first time, after running a total of three years, or running time of more than 10,000 to 12,000 hours); 2, due to the replacement of the compressor and the motor burned; 100 hours of continuous operation fluorine system after replacing the press; 3, for on-site assembly of the unit or units under conditions close to the limit to run in After a total of 100 hours of operation to replace frozen oil; 4, according to the case of fluorine system cleanliness discretion. Second, the type of a frozen oil, semi-hermetic piston compressor BITZER 6F-50.2 allows the refrigerant (R12-R22-R502) by BITZER B5.2 type refrigeration oil allow refrigerant (R134A-R404A-R507A) tc <55 ℃ Use BITZER BSE321 tc> 55 ℃ using BITZER BSE55 (tc: condensing temperature) 2, semi-hermetic screw compressor BITZER CSH7571-90 or CSH8571-140 allow refrigerant (R22) use B320H. Allowing the refrigerant (R134A-R407C-R404A) used BSE170. Third, the standard fuel injection; injection piston 6F-50.2 4.75dm3, screw CSH7571-90 inject 14 dm3, GSH8571-140 inject 18 dm3 four, a refrigeration oil change procedures, shut down the high-pressure and low exhaust suction valve, the use of technology on the press let go of the needle valve refrigerant inside the press, so that the compressor crankcase and the atmosphere; 2. Remove the crankcase drain plug at the shell, the crankcase oil put the net and get frozen By cleaning the filter; 3, available nitrogen from low pressure pneumatic valve needle blown, hand-blocked drain outlet pressure to increase the body, the body further exclude residual oil will dry after cleaning the filter into the body and tighten the drain plug frozen oil injection. Scenario 1: Remove the compressor crankcase side of the craft port ram, as a filling mouth frozen oil through the crankcase into the appropriate tools; Scenario 2 :( for piston aircraft) will charge fluoride table low pressure pipe connection On the low-pressure compressor valve needle craft cavity, using a vacuum pump for pumping the crankcase vacuum, another root canal filling fluoride alone remove, insert one end of the container with frozen oil, and the other end connected to the suction side of the pump low pressure the valve needle, the use of negative pressure in the crankcase crankcase oil suction frozen. Come Notes: 1, due to the original system may exist a certain amount of residual oil, fuel oil change can add some less, depending on the general increase to higher oil lens marking the lower position can be; 2, after freezing oil charge injection is completed, Tighten the process or remove the plunger tube charge fluoride, fluorine pressure gauge and connect the compressor vacuum; 3, vacuum and finished high and low pressure compressor shut-off valves open to check for refrigerant leakage phenomenon; 4, if there is no leak Wait 20 minutes after starting the unit; after opening the unit should be checked, as the compressor lubrication and oil immersion oil level immediately, if the oil level is below the normal range (1/4 endoscopy), you must add frozen oil. If necessary, can be accessed on the pump to check the oil pressure gauge needle, the suction side of the pump pressure should be consistent with the low suction pressure, oil pressure difference allowable value 1.4 ~ 3.5bar, screw machine for pressure-oil return no pump. V. Other Notes 1, polyester oil BSE170 has a strong moisture absorption, moisture in oil and oil produces a chemical reaction, and can not be removed by vacuuming, require special care while working to minimize air into the system and storage containers Do not operate in the rain. 2, for the case to replace the compressor should be noted that the original cooling system already contains a certain amount of refrigerant oil, if necessary to keep the oil in the system blow, have occurred if there was a lot of oil stored in the system, then boot shock. Tel: 010-57286377 13391817494 (08: 00-22: 00 7 × 14 hours) Jiang thick right