Table Of Contents - Danfoss Maneurop NTZ Application Manuallines

Application Guidelines Content
General Information ........................................ 4
Maneurop® reciprocating compressors ......... 5
Features .......................................................................5
Specifications .............................................................6
Technical specifications and nominal ratings 6
Versions ........................................................................6
Compressor reference ............................................6
Nominal performance data for R404A ..............7
Nominal performance data for R452A ..............7
Nominal performance data for R454C ..............8
Nominal performance data for R455A ..............8
Dimensions ...................................................... 9
1 cylinder .....................................................................9
2 cylinders ................................................................ 10
4 cylinders ................................................................ 11
Electrical connections and wiring ................ 12
Voltage application range .................................. 12
Single phase electrical characteristics ........... 12
Nominal capacitor values and relays.............. 12
Single phase motor protection and suggested
wiring diagram ....................................................... 12
Trickle circuit ........................................................... 12
PSC wiring ................................................................ 12
CSR wiring ................................................................ 12
Single phase PSC wiring with trickle circuit 13
Single phase CSR wiring with trickle circuit 13
Single phase CSR wiring without trickle
circuit ......................................................................... 13
Three phase electrical characteristics ............ 14
Three phase motor protection and suggested
wiring diagram ....................................................... 14
Wiring diagram with pump-down cycle ....... 14
Wiring diagram without pump-down cycle 15
IP rating ..................................................................... 15
Motor protection ................................................... 15
Voltage unbalance ................................................ 15
Approval and certifications .......................... 17
Approvals and certificates.................................. 17
Pressure equipment directive 2014/68/EU .. 17
Low voltage directive 2014/35/EU .................. 17
Machinery directive 2014/30/EU ..................... 17
Internal free volume ............................................. 17
Operating conditions .................................... 18
Refrigerants and lubricants ............................... 18
Operating envelope ............................................. 18
R404A / R507A ........................................................ 18
R452A ........................................................................ 18
R454C ......................................................................... 19
R455A ........................................................................ 19
Operating conditions ........................................... 19
Discharge temperature protection ................. 20
Operating limits ..................................................... 20
System design recommendations ................ 21
Piping design .......................................................... 21
Suction line .............................................................. 21
Discharge line ......................................................... 21
Oil charge and oil separator .............................. 22
Filter driers ............................................................... 22
Suction pressure control ..................................... 22
Suction line heat exchanger.............................. 22
Cycle rate limit ........................................................ 23
Liquid refrigerant control and charge limits 23
Off-cycle migration ............................................... 23
Liquid floodback during operation ................ 23
Crankcase heater ................................................... 24
Liquid line solenoid valve & pump-down .... 24
Suction accumulator ............................................ 24
Sound and vibration management .............. 25
Sound ........................................................................ 25
Vibration ................................................................... 25
Installation and service ................................. 26
System cleanliness ................................................ 26
Compressor handling, mounting and
connection ............................................................... 26
Compressor connection to the system ......... 27
System pressure test ............................................ 27
Leak detection ........................................................ 28
Vacuum pump-down and dehydration
procedure ................................................................. 28
Start-up ..................................................................... 28
Refrigerant charging ............................................ 28
Oil charge and oil level ........................................ 29
Installation checks ................................................ 29
Ordering information and packaging .......... 30
Code numbers (for ordering) ............................ 30
Packaging ....................................................... 30
Accessories ..................................................... 31
AB245486497018en-000601
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