Application guidelines. Maneurop® reciprocating compressors. MT / MTZ. 50 – 60 Hz – R22 – RA – RA/C/F – Ra. Danfoss Commercial Compressors Online Datasheet Generator . instalación y aplicación de para compresores Maneurop MT, MTZ y LTZ. Guías de Aplicación . 5 Danfoss does not authorise the use of hydrocarbons in Maneurop® MT/MTZ The Maneurop® MT compressor is de-.
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Compresores Danfoss Para a Download Report. Published on Dec View Download 5. The compressor designations are built up according to the following system: All compressors have a green label with the cataloto. This label has a blue stripe and thetext Ra. Danfoss compressors have a manufacturing date code stamping on the housing. The formmainly d recently is stamping into the top cover of the housing. On some compressorproduction lines the stamping has been changed to needle printing into the side of the housing.
This is going to be introduced on all products. For a certain period 2 different codes, in needle printing and cover stamping, will be used inparallel. The coding is designed not to be mixed up with the previous version.
Example recent date code: LFFEThe first line states the model designation and the code no. Example new date code: H 6 characters A01B 7 characters Composition of line 1H Production hour 00 to 23 or shift code -1, -2, -3B: Compressors with denominations ending with FT are F-types designed for low evaporationtemperatures LBP Low Back Pressure for use in refrigerators, freezers and similar applica-tions operating in regions with unstable supply voltage. Compressors with denominations ending with FK are F-types danfose for low evaporationtemperatures with LST starting characteristics capillary tube.
Compressors with denominations ending with FX are F-types designed for low evaporationtemperatures with HST starting characteristics expansion valve.
Compressors with denominations ending with G are primarily designed for high evaporationtemperatures HBP High Back Pressure for use in liquid coolers, dehumidifiers, refrigerateddisplay counters, vending machines and similar applications.
The compressors can also beused for Heavy Duty purposes at low evaporating temperatures for use in refrigerators, freezersand similar applications operating in regions with unstable supply voltage.
Compressors with denominations ending with GK are G-types designed for high evaporatingtemperatures with LST starting characteristics capillary tube. Compressors with denominations ending with GX are G-types designed for high evaporatingtemperatures with HST starting characteristics expansion valve. The recommandations must be regarded as a guideline only as they presuppose a properdimensioning of the refrigeration system. In order to secure a satisfying lifetime of the compressor, and to protect the compressoragainst overload, some design criteria for the appliances must be fulfilled.
Both the condensing temperature and the compressor temperature should be kept as low aspossible. This can be done by using well-dimensioned condenser surfaces and by ensuringgood ventilation around the compressor under all operating conditions. In order to protect the compressor against overload, the compressor has to start and workproperly through pressure peaks obtained in the highest ambient temperature and lowest obligingvoltage. At peak load the condensing temperature must not exceed F 70C.
The windingtemperature must not exceed F C. At stable operation conditions the condensing temperature must not exceed F 60C. Thewinding temperature must not exceed F C.
These limitations secure protection of valves, gaskets, oil, and motor insulation1. The electrical equipment is classified as normal tight IP20 Earth connections are located on the bracket around the current lead-in of the compressor. No attempt must be made to start the compressor without a complete starting device. The compressors can be supplied with the following motor systems: This starting device requires a pressure-equalizedsystem before each start. This starting device is normally used in well-designed refrigeratingsystems with capillary tube as throttling device.
The design of the electrical equipmentdepends on the actual compressor design. As shown in the drawings the following designsof starting devices exist: This starting device requires a pressure-equalized sys-tem before each start.
The design of the electrical equipment dependson the actual compressor design. As shown in the drawings the following designs of startingdevices exist: This starting device is mandatory for some compressor designs and itis an option for others specified in the invidual data sheets. This starting device requires no pressure-equalization beforeeach start and is normally used in refrigerating systems with expansion valve as throttlingdevice or in capillary tube systems where pressure equalizing is not obtained during the standstillperiods.
The starting capacitor is designed for short time cut-in. The design of the electrical equipment depends on the actual compressor design. As shown in the drawings the following designs ofstarting devices exist: This starting device is mandatory for some compressor designs and it is an option for others specified in the invidual data sheets.
Actual standards to which thecompressors have been approved are specified in the individualdatasheets. Approval markings appear on a separate approvalmark label.
The maximum impurity content is 40 to 50 mg depending on the compressorsize. The refrigerant charge must never be too large to be contained on the condenser side of therefrigeration system.
Only the refrigerant amount which is necessary for the system to functionmust be charged. The refrigerant amount may be critical as regards oil foaming and liquid hammer after longstandstill periods. Because of this, limitations of refrigerant charges have been introduced.
The maximum refrigerant charge is specified in the individual datasheets. If these limitations cannot be complied with, the risk may be reduced if catallogo crankcase heater isproperly used or if a pump down system is established. The compressors are supplied charged with dried and degassed oil, which is normally sufficientfor the lifetime of the compressor.
The refrigeration systems and the system componentsmust be dimensioned in such a way that the oil can be lead back continuously to the compressorhousing without accumulating in the system, e. The compressors use polyolester oils and are approved only cataloto these oils and Ra. The oil charge is specified in the individual datasheets.
Soldering problems caused by oil in the connectors can be avoided by placing the compressoron its baseplate some time before soldering it into the system.
The compressor must never beplaced upside down when mounting the rubber grommets in the baseplate. Instead place thecompressor on its side with the catalpgo upwards. The mounting accessories damfoss the compressors are available in two versions, with bolt joint orsnap-on joint. The code numbers for the mounting accessories are specified in the individualcompressor datasheets. Moisture andImpuritiesJuly CK.
Quantities per pallets are specified in the individual datasheets. Electricalcomponents are packed in separate boxes. The most important performance controls ddanfoss out during manufacturing are, A high potential insulation test with V for 1 second Pumping capacity Tightness of discharge side and discharge valve Tightness of compressor housing Check of the right oil charge Noise testThe compressors are supplied with sealed connectors and the sealing should not be removedbefore the system assembly takes place max 15 minutes with open connectors.
Normally, the capillary tube shall be adjusted at low evaporating temperatures. Compared toan optimized R12 system with the same evaporator capacity, the Ra system must havean increased resistance defined as approx. The same size of cagalogo tube as used for R12 can be used at catalkgo evaporating tempera-tures. A drier with 3 desiccant of Molecular Sieves must always be used.
Compresores Danfoss Para 134a
Rules for dryness and cleanliness of system components e. DIN are transferred toRa systems. The system components must not contain mineral oil or greasy substances. The compressors must be soldered into the system no later than 15 minutes after the con-nector seals have been removed.
The same evacuation procedure as for R12 systems must be used. The system must not contain any chlorine. The charging equipment must only be used for Ra. If the same vacuum pump is to be used for R12 and Ra systems, a special Ester oil mustbe used in agreement with the pump supplier. No high potential test nor start tests must be carried out while the compressor is under vacuum. Allow the compressor to assume a temperature above 50F 10C before starting the firsttime in order to avoid starting problems.
Anti-freeze agents must not be used in the compressors as such agents are damaging toseveral of the materials used. In particular, the ethyl or methyl alcohol contents of such anti-freeze agents have a destructive effect on the synthetic motor insulation. Conversion fromR12 to Ra8. Condition at delivery12 CK. Dimensions G GHeight in.
LBP F 54,4C 2. MBP F 54,4 C 2. HBP F 54,4 C 2.
Ambient and suction gas temp. Compressors for Refrigeration and Air ConditioningA compresoree range of hermetic reciprocating compressors and scroll compressors aswell as aircooled condensing units.
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The product range is applied in air conditioningunits, water chillers and commercial refrigeration systems. Refrigeration and Air Conditioning ControlsWith our full product range we cover all the requirements for mechanical andelectronically controlled refrigeration systems. Our products are applied for all commercial-and industrial refrigeration applications as well as for air conditioning.
Compressors for Refrigerators and FreezersHermetic compressors and fan-cooled condensing units for householdrefrigeration units such as refrigerators and freezers, and for commercial installa-tions such as sales counters and bottle coolers.