Danfoss Reciprocating Compressor Pdf

[Tom Donahou]

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Danfoss reciprocating inverter compressors avoid oversized and short cycling systems. The compressor automatically adapts to the current load. By combining an efficient Danfoss Maneurop reciprocating compressor with a Danfoss Drive, the company provides an innovative and intelligent package that utilizes variable-speed technology to ensure superior efficiency across the entire operating range for precision cooling.

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Maneurop MT, MTZ, NTZ reciprocating compressors from Danfoss fit in a wide variety of applications, like walk-in coolers, milk tanks, or air dryers, and are available in a wide range of operating conditions. Each compressor feature a large internal free volume that protects against the risk of liquid hammering.

Maneurop MT, MTZ, and NTZ hermetic reciprocating compressors by Danfoss are designed for low-, medium-, and high-temperature applications. Compressors are available for a wide range of applications, refrigerants, and operating conditions and future-proven, built-in performance enhancers and safety measures.

Available from 0.4 to 34 kW (depending on refrigerant), in fixed and variable-speed versions, Danfoss Light Commercial and Commercial reciprocating compressors can fit in a wide variety of commercial refrigeration and air conditioning applications.

Maneurop reciprocating compressors from Danfoss Commercial Compressors are specially designed for applications with a wide range of operating conditions. All components are of high quality and precision in order to ensure a long product life.

These Reciprocating compressors are used for Commercial Refrigeration and Air Conditioning applications with refrigerants R22, R407C, R134a, R404A and R507. Nominal capacities ranging from 1 to 24 kW.

Used Frigotronic HTA-CU-40 condensing unit. Complete with a Danfoss MTZ80HP4AVE hermetic reciprocating compressor, condenser with 2 fans - 50 Hz - 1500 RPM, OCS RFC220425 liquid receiver 14 liter, liquid line filter dryer and a Johnson Controls pressure switch.

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Danfoss Maneurop reciprocating compressors are specially designed for applications with a wide range of operating conditions. All components are of high quality and precision in order to assure a long product life.The compressor design allows for the motor to be 100% suction-gas cooled. The positive benefits of internal motor protection, high efficiency circular valve design and high torque motors provide for a quality installation.

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Electrical Connection:Refer to section 5 for information on electrical connection.Follow the instructions for contactor and motor contactor selection.Connect the driving motor as described in the sectionIf using a direct start circuit diagram, follow the instructions in the section For electronic trigger unit INT69 G, refer to the section for information on the connection.Functional Test:

Perform a functional test of the electronic trigger unit INT69 G as described in section

Oil Sump Heater:

If required, follow the instructions in section 5.7 for installing and operating the oil sump heater.Frequency Converters:

Refer to section 5.8 for the selection and operation of frequency converters.

Technical Data:

Refer to section 8 for detailed technical data on the compressor.Dimensions and Connections:

For information on dimensions and connections refer to the section

Declaration of Incorporation:

Read the declaration of incorporation provided in the sectionUL-Certificate of Compliance:

Review the UL-Certificate of Compliance in section

Note: Unauthorized changes or modifications to the product not covered by the manual are prohibited and will void the warranty. Ensure that the manual is available to personnel operating and maintaining the product, and pass it on to the end customer when installing the compressor.Foreword

DANGER: Risk of accidents.Refrigerating compressors are pressurized machines and, as such, call for heightened caution and care in handling. Improper assembly and use of the compressor can result in serious or fatal injury!

CO2 applications require a completely new kind of system and control. They are not a general solution for the substitution of F-gases. Therefore, we expressly point out that all information in these assembly instructions has been provided according to our current level of knowledge and may change due to further development. Legal claims based on the correctness of the information cannot be made at any time and are hereby expressly excluded. Unauthorized changes and modifications to the product not covered by this manual are prohibited and will void the warranty! This instruction manual is a mandatory part of the product. It must be available to the personnel who operate and maintain this product. It must be passed onto the end customer along with the unit in which the compressor is installed. This document is subject to the copyright of Bock GmbH, Germany. The information provided in this manual is subject to change and improvements without notice.Safety

Identification of safety instructions:DANGERIndicates a dangerous situation that, if not avoided, will cause immediate fatal or serious injury WARNINGIndicates a dangerous situation which, if not avoided, may cause fatal or serious injuryCAUTIONIndicates a dangerous situation which, if not avoided, may immediately cause fairly severe or minor injury.NOTICEIndicates a situation which, if not avoided, may cause property damage INFOImportant information or tips on simplifying workGeneral safety instructions

These assembly instructions describe the standard version of the compressors named in the title manufactured by Bock. Bock refrigerating compressors are intended for installation in a machine (within the EU according to the EU Directives 2006/42/EC Machinery Directive and 2014/68/EU Pressure Equipment Directive, outside the EU according to the respective national regulations and guidelines). Commissioning is only permissible if the compressors have been installed by these assembly instructions and the entire system into which they are integrated has been inspected and approved by legal regulations. The compressors are intended for use with CO2 in transcritical and/or subcritical systems in compliance with the limits of application.Only the refrigerant specified in these instructions may be used! Any other use of the compressor is prohibited!

Qualifications required of personel

WARNING: Inadequately qualified personnel pose the risk of accidents, the consequence being serious or fatal injury. Work on compressors must therefore only be performed by personnel with the qualifications listed below:e.g., a refrigeration technician or refrigeration mechatronics engineer.As well as professions with comparable training, which enable personnel to assemble, install, maintain, and repair refrigeration and air-conditioning systems.Personnel must be capable of assessing the work to be carried out and recognizing any potential dangers.Product DescriptionShort descriptionSemi-hermetic two-cylinder reciprocating compressor with suction gas-cooled driving motor.The flow of refrigerant sucked in from the evaporator is led over the engine and provides for particularly intensive cooling. Thus the engine can be kept on a relatively low temperature level, especially during high load.Oil pump independent of the direction of rotation for reliable and safe oil supply.One decompression valve each on the low and high-pressure side, which vents into the atmosphere when inadmissibly high-pressure levels are reached.Dimension and connection values can be found in Chapter 9Product DescriptionNameplate (example)Observe the limits of application diagrams!

Electrical accessories can change the IP protection class!Type key (example)) HG: Hermetic Gas-Cooled (suction gas-cooled)) X: Ester oil charge) ML: Deep freezing at low and medium evaporation temperaturesS: For frequency regulation and extended limits of applicationAreas of application

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