Table Of Contents - Danfoss Maneurop NTZ Series Application Manuallines

Reciprocating compressors

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Selection & application manuallines (28 pages)

Application manuallines (34 pages)

Table of Contents

Application guidelines

Content

Maneurop® reciprocating compressors ..............................................................................................5

Features ................................................................................................................................................................................. 5

Specifications ........................................................................................................................................6

Technical specifications and nominal ratings .......................................................................................................... 6

Versions .................................................................................................................................................................................. 6

Compressor reference ...................................................................................................................................................... 6

Dimensions ...........................................................................................................................................7

1 cylinder ............................................................................................................................................................................... 7

2 cylinders ............................................................................................................................................................................. 8

4 cylinders ............................................................................................................................................................................. 9

Electrical connections and wiring .....................................................................................................10

Voltage application range .............................................................................................................................................10

Single phase electrical characteristics ......................................................................................................................10

Nominal capacitor values and relays.........................................................................................................................10

Single phase motor protection and suggested wiring diagram .....................................................................10

Single phase PSC wiring with trickle circuit ...........................................................................................................11

Single phase CSR wiring with trickle circuit ...........................................................................................................11

Single phase CSR wiring without trickle circuit.....................................................................................................11

Three phase electrical characteristics .......................................................................................................................12

Three phase motor protection and suggested wiring diagram ......................................................................12

Wiring diagram with pump-down cycle ..................................................................................................................12

Wiring diagram without pump-down cycle ...........................................................................................................13

IP rating ................................................................................................................................................................................13

Motor protection ..............................................................................................................................................................13

Voltage unbalance ...........................................................................................................................................................13

Approval and certifications ...............................................................................................................14

Approvals and certificates.............................................................................................................................................14

Pressure Equipment Directive 97/23/EC ..................................................................................................................14

Low voltage directive 2006/95 EC ..............................................................................................................................14

Machine directive 2006/42/EC ....................................................................................................................................14

Internal free volume ........................................................................................................................................................14

Operating conditions .........................................................................................................................15

Refrigerants and lubricants ..........................................................................................................................................15

Operating envelope R404A / R507.............................................................................................................................15

Discharge temperature protection ............................................................................................................................15

Operating limits ................................................................................................................................................................16

System design recommendations .....................................................................................................17

Piping design .....................................................................................................................................................................17

Suction line .........................................................................................................................................................................17

Discharge line ....................................................................................................................................................................17

Oil charge and oil separator .........................................................................................................................................18

Filter driers ..........................................................................................................................................................................18

Suction pressure control ................................................................................................................................................18

Suction line heat exchanger.........................................................................................................................................18

Cycle rate limit ...................................................................................................................................................................19

Liquid refrigerant control and charge limits ..........................................................................................................19

Off-cycle migration ..........................................................................................................................................................19

Liquid floodback during operation ...........................................................................................................................19

Crankcase heater ..............................................................................................................................................................20

Liquid line solenoid valve & pump-down ...............................................................................................................20

Suction accumulator .......................................................................................................................................................20

FRCC.PC.002.A4.22