Danfoss Maneurop reciprocating compressors MT, Maneurop reciprocating compressorsMTZ Application guide

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Application guidelines

Maneurop® reciprocating compressors MT/MTZ

50 - 60 Hz Group 2: R22, R417A, R407A/C/F, R134a, R404A / R507A, R448A / R449A, R452A, R513A Group 1: R454C, R455A

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Application Guidelines

Content

General Information ........................................ 4

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

Code numbers (for ordering) ..........................................6

Compressor reference (indicated on the compressor

nameplate) .............................................................................6

Compressor model designation .....................................6

Speciﬁcations ................................................... 7

Technical speciﬁcations .....................................................7

Approvals and certiﬁcates ................................................7

Pressure equipment directive 2014/68/EU ................7

Low voltage directive 2014/35/EU ................................7

Machinery directive 2014/30/EU ................................... 7

Internal free volume ...........................................................7

Nominal performance data for R404A and R22 ......8

Nominal performance data for R407C and R134a ... 9 Nominal performance data for R407A and R407F .10 Nominal performance data R448A/R449A and

R452A .....................................................................................11

Nominal performance data R454C, R455A and

R513A .....................................................................................12

Operating envelopes ..................................... 13

Discharge temperature protection .............................16

Zeotropic refrigerant mixtures .....................................16

Phase shift ............................................................................17

Temperature glide .............................................................17

Dew temperature and Mean temperature for zeo-

tropic mixtures ...................................................................17

Outline drawings ........................................... 18

1 cylinder ..............................................................................18

2 cylinders ............................................................................19

4 cylinders ............................................................................20

Electrical connections and wiring ................ 21

Single phase electrical characteristics .......................21

Nominal capacitor values and relays ..........................21

Trickle circuit .......................................................................21

PSC wiring ............................................................................21

CSR wiring ............................................................................21

Suggested wiring diagrams ...........................................22

Three phase electrical characteristics ........................23

Winding resistance............................................................23

Motor protection and suggested wiring diagrams 23

Soft starters..........................................................................24

Voltage application range ..............................................24

IP rating .................................................................................24

Refrigerants and lubricants .......................... 25

General information .........................................................25

R22 ..........................................................................................25

Alternatives R22, HFC retroﬁt ........................................25

R407C .....................................................................................25

R134a .....................................................................................26

R404A .....................................................................................26

R507A .....................................................................................26

R407A .....................................................................................26

R407F .....................................................................................26

R448A/R449A ......................................................................26

R452A .....................................................................................27

R454C/R455A ......................................................................27

R513A .....................................................................................27

Hydrocarbons .....................................................................27

System design recommendations ................28

Piping design ......................................................................28

Operating limits .................................................................29

Operating voltage and cycle rate ................................30

Liquid refrigerant control and charge limit ..............30

Sound and vibration management .............. 32

Sound ....................................................................................32

Vibration ...............................................................................32

Installation and service ................................. 33

System cleanliness ............................................................33

Compressor handling, mounting and connection to

the system ............................................................................33

System pressure test ........................................................34

Leak detection ....................................................................34

Vacuum pull-down moisture removal .......................34

Start-up .................................................................................35

Ordering information and packaging ..........36

Packaging .............................................................................36

3AB196386425654en-021502

Application Guidelines

General Information

Danfoss receiprocating compressors are designed and manufactured with state of the art technology and follow European and US regulations. There is an added emphasis placed on safety and reliability. Critical instructions are highlighted with the following icons:

This icon indicates instructions to avoid safety risk.

This icon indicates instructions to avoid

reliability risk.

The purpose of this guideline is informational, with the intent to educate customers as to how the compressors should properly function. If you need any additional assistance, please contact Danfoss Technichal Support. In any case, Danfoss manufacturing accepts no liability as a result of misuse or improper integration of the compressor unit.

4 AB196386425654en-021502

Application Guidelines

Maneurop® reciprocating compressors

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 assure a long product life.

Maneurop® MT and MTZ series compressors are of the hermetic reciprocating type and are designed for medium and high evaporating temperature applications.

The positive beneﬁts of internal motor protection, high eﬃciency circular valve design and high torque motors provide for a quality installation.

MT & MTZ have the same mechanical and motor design.

MT is charged with mineral oil while MTZ with polyester oil.

These compressor ranges can be used with a large choice of refrigerants according their compatibility with the oil.

MT and MTZ compressors have a large internal free volume that protects against the risk of liquid hammering when liquid refrigerant enters the compressor.

MT and MTZ compressors are fully suctiongas cooled. This means that no additional compressor cooling is required and allows the compressors to be insulated with acoustic jackets, to obtain lower sound levels, without the risk of compressor overheating.

MT and MTZ compressors are available in 16 diﬀerent models with displacement ranging from 30 to 271 cm3/rev. Seven diﬀerent motor voltage ranges are available for single and three phase power supplies at 50 and 60 Hz. All compressors are available in VE version (oil equalisation + oil sight glass).

5AB196386425654en-021502

Application Guidelines

Code numbers (for ordering)

Compressor model designation

Compressor reference (indicated on the compressor nameplate)

Compressor type

Polyolester oil

KBtu/h@ARI 60hz

Available code numbers are listed section “Ordering information and packaging”

Compressor

type

Polyolester oil

KBtu/h@ARI60hz

Displacement code

Packaging type

I : single pack M : industrial pack

(see ordering section)

Oil equalisation port and threaded sight glass

Motor voltage code*

1: 208-230V/1~/60Hz 3: 200-230V/3~/60Hz 4: 380-400 V/3~/50Hz & 460V/3~/60Hz 5: 220-240 V/1~/50Hz 6: 230 V/3~/50Hz 7: 500 V/3~/50Hz & 575V/3~/60Hz 9: 380 V/3~/60Hz

*Please consult Danfoss for motor version available

Oil equalisation port and sight glass

Generation index

Motor voltage code*

1: 208-230V/1~/60Hz 3: 200-230V/3~/60 Hz 4: 380-400V/3~/50Hz & 460V/3~/60Hz 5: 220-240V/1~/50Hz 6: 230V/3~/50Hz 7: 500V/3~/50Hz & 575V/3~/60Hz 9: 380V/3~/60Hz

*Please consult Danfoss for motor version available

6 AB196386425654en-021502

Application Guidelines

Speciﬁcations

Technical speciﬁcations

Compressor

model

MT/MTZ018 JA 30.23 5.26 1 0.95 21 MT/MTZ022 JC 3 8.12 6.63 1 0.95 21 MT/MTZ028 JE 48.06 8.36 1 0.95 23 MT/MTZ032 JF 53.86 9.37 1 0.95 24 MT/MTZ036 JG 60.47 10.52 1 0.95 24 MT/MTZ040 JH 67. 89 11. 81 1 0.95 24 MT/MTZ044 HJ 76.22 13. 26 2 1.8 35 MT/MTZ050 HK 85.64 14.90 2 1.8 35 MT/MTZ056 HL 96 .13 16.73 2 1.8 37 MT/MTZ064 HM 10 7.71 18.74 2 1. 8 37 MT/MTZ072 HN 120.94 21.0 4 2 1.8 40 MT/MTZ080 HP 135.78 23.63 2 1.8 40 MT/MTZ100 HS 171. 26 29.80 4 3.9 60 MT/MTZ125 HU 215.4 4 37.49 4 3.9 64 MT/MTZ144 HV 241.87 42.09 4 3.9 67 MT/MTZ160 HW 271.55 47. 25 4 3.9 67

Displacement

Code cm

/rev

m3/h at

2900 rpm

Cyl.

number

● Available in MT and MTZ ○ Available in MTZ only

Oil

charge

Net

weight

Available motor voltage codes

1 3 4 5 6 7 9

● ● ● ● -

● ● ● ● ●

- -

● ● ● ● ● ○ ●

● ● ● ● ● ○ ○

● ● ● ○ ● ●

● ● ●

● ●

●

○ ○ ●

● ○ ●

● ● ●

●

○

●

● ● ●

- -

● ○

●

Approvals and certiﬁcates

Pressure equipment directive 2014/68/EU

Low voltage directive 2014/35/EU

Maneurop® MT/MTZ compressors comply with the following approvals and certiﬁcates.

CE (European Directive)

UL (Underwriters Laboratories)

CCC (China Compulsory Product Certiﬁcation)

EAC Eurasian conformity mark

Products MT/MTZ 018 to 040 MT/MTZ 018 to 040** MT/MTZ 044 to 160

Refrigerating ﬂuids* Group 2 Group 1 Group 2 Category PED I II II Evaluation module no scope D1 D1 Maximum/minimum allowable

temperature - TS MT maximum allowable pressure - PS 18.4 bar(g) 18.4 bar(g) 18.4 bar(g) MTZ maximum allowable pressure - PS 22.6 bar(g) 22.6 bar(g) 22.6 bar(g)

* According to the PED classiﬁcation Group1 contains hazardous ﬂuids e.g. ﬂammable, while Group 2 all other ﬂuids ** Only motor code 4 and 5

Products MT/MTZ 018 to 040 MT/MTZ 044 to 160

Manufacturer's declaration contact Danfoss contact Danfoss

50°C > Ts > -35°C 50°C > Ts > -35°C 50°C > Ts > -35°C

Other certiﬁcates/approvals please contact Danfoss

All models

All 60 Hz models

All models code 4 and 5 under CCC scope.

All models voltage code 4 and 5

Machinery directive 2014/30/EU

Internal free volume

Products MT/MTZ 018 to 040 MT/MTZ 044 to 160

Manufacturer's declaration contact Danfoss contact Danfoss

Products

1 cyl. 7.76 0.28 2 cyl. 17.13 0.63 4 cyl. 32.2 1.20

Low side High side

Volume (litre)

7AB196386425654en-021502

Application Guidelines

Speciﬁcations

Nominal performance data for R404A and R22

R404A Refrigeration

50 Hz, EN12900 ratings

Compressor

model

MTZ018-4* 1910 1.21 2.73 1.58 2070 1.31 2.86 5.39 2630 1.76 2.86 5.10 MTZ022-4* 2630 1.48 3.06 1.77 2830 1. 62 3.24 5.96 3600 2.05 3.27 5.99 MTZ028-4* 3430 1.96 4.04 1.75 3690 2.14 4.30 5.88 4680 2.68 4.23 5.96 MTZ032-4* 3980 2.16 4.25 1.84 4260 2.37 4.56 6.13 5110 2.98 4.56 5.85 MTZ036-4* 4670 2.58 4.95 1.81 4990 2.83 5.33 6.02 5900 3.33 5.09 6.05 MTZ040-4* 5330 2.95 5.87 1.81 5680 3. 24 6.29 5.98 6740 3.76 5.88 6.12 MTZ044-4* 5370 2.78 5.35 1.93 5780 3.02 5.67 6.53 7110 3.85 5.85 6.30 MTZ050-4* 6260 3.22 5.95 1.94 6700 3.50 6.33 6.53 8360 4.42 6.53 6.46 MTZ056-4* 6710 3.51 6.83 1.91 7250 3.85 7. 25 6.43 9490 4.98 7.52 6.50 MTZ064-4* 7980 4.20 7. 82 1.90 8590 4.60 8.35 6.37 10540 5.67 8.31 6.34 MTZ072-4* 8920 4.69 8.95 1.90 9570 5.11 9.50 6.39 11960 6.53 9.73 6.25 MTZ080-4* 10470 5.61 10. 20 1.87 1118 0 6.14 10.94 6.21 13610 7. 81 11. 35 5.95 MTZ100-4* 12280 6.76 12. 21 1.82 13170 7. 35 12 .94 6.12 154 80 8.72 12. 79 6.06 MT Z125 -4* 15710 8.44 14.69 1.86 16800 9.22 15.82 6.22 19970 11 .37 16.41 5.99 MTZ144 -4* 1849 0 9.78 16.77 1.89 19690 10.66 17.99 6.30 23540 12.9 9 18.47 6 .18 MTZ160-4* 20310 11. 08 18.80 1.83 21660 12.09 20.22 6 .11 25570 14.73 20.77 5.92

* 50 Hz, EN12900 data for indicated models are Asercom certiﬁed R404A data are also valid for refrigerant R507A

To = -10°C, Tc = 45°C, SC = 0K, SH = 10K

Cooling

capacity

Power

input

Current

input

C .O.P. W/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

60 Hz, ARI ratings

Power

input

Current

input

Btu.h/W

E.E.R.

R22 Refrigeration Air Conditioning

50 Hz, EN12900 ratings

Compressor

model

MT018-4 1690 1.0 0 2.27 1.69 3880 1.45 2.73 9.13 4660 1.74 2.73 9.14 MT022- 4 2490 1.29 2.55 1.94 5360 1.89 3.31 9.68 6440 2.27 3.31 9.68 MT028-4 3730 1.81 3.59 2.06 7380 2.55 4.56 9.88 8850 3.06 4.56 9.87 MT032- 4 3950 2 .11 3.73 1.87 8060 2.98 4.97 9.23 9680 3.58 4.97 9.23 MT036-4 4810 2.35 4.30 2.04 9270 3.37 5.77 9.39 11130 4.05 5.77 9.38 MT040-4 5220 2.67 4.86 1.95 10 480 3.86 6.47 9.27 12570 4.63 6.47 9.27 MT044-4 4860 2.46 5.02 1.9 8 10520 3.53 6.37 10.17 12890 4.32 6.42 10.18 MT050-4 5870 2.94 5.53 2.00 12230 4.19 7.20 9.96 14690 5.04 7. 26 9.95 MT056-4 6450 3.18 6.39 2.03 1375 0 4.58 8.19 10.25 16520 5.58 8.23 10.10 MT064-4 7750 3.64 7.03 2.13 1573 0 5. 27 9.16 10.19 18850 6.32 9.33 10.18 MT072-4 8710 4.19 8.48 2.08 18200 6 .12 10.98 10.15 2184 0 7. 33 10.77 10.17 MT080-4 10360 4.89 9.52 2 .12 20740 7.08 12. 48 10.00 24890 8.50 12 .34 9.99 MT10 0-4 113 30 5.79 11.82 1.96 23400 7. 98 14. 59 10.01 28080 9.58 14. 59 10.0 0 MT 125-4 15260 7. 55 12 .28 2.02 30430 10.66 17. 37 9.74 36520 12. 80 17. 37 9.74 MT144-4 17280 8.47 17. 06 2.04 34340 11.9 6 22.75 9.80 41210 14. 35 22.75 9.80 MT16 0-4 19190 9.49 16. 81 2.02 38270 13. 40 2 2.16 9.75 45930 16. 08 22.16 9.75

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

ARI capacity and power input data are +/- 5% Asercom: Association of European Refrigeration Compressor and Controls Manufacturers ARI: Air Conditioning and Refrigeration Institute

To = -10°C, Tc = 45°C, SC = 0K, SH = 10K

Cooling

capacity

Power

input

Current

input

C .O.P. W/W

To = 7.2°C, Tc = 54.4°C, SC = 8.3K, SH = 11.1K

Cooling

capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = 7.2°C, Tc = 54.4°C, SC = 8.3K, SH = 11.1K

Cooling

capacity

60 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

8 AB196386425654en-021502

Application Guidelines

Speciﬁcations

Nominal performance data for R407C and R134a

R407C Air Conditioning

50 Hz, EN12900 ratings

Compressor

model

MTZ018-4* 3470 1.27 2.73 2.73 3850 1.38 2.86 9. 52 5050 1.73 2.82 9.96 MTZ022-4* 4550 1.71 3.27 2.67 5020 1.86 3.47 9.21 6280 2.26 3.45 9.48 MTZ028-4* 5890 2.17 4.30 2.72 6540 2.36 4.57 9.46 8220 2.82 4. 41 9.95 MTZ032-4* 6650 2.43 4.57 2.74 7330 2.66 4.90 9.40 9000 3.20 4.80 9.60 MTZ036-4* 7510 2.93 5.58 2.56 8280 3.21 5.99 8.80 9990 3.90 5.78 8. 74 MTZ040-4* 8660 3.40 6.46 2.55 9580 3.71 6.92 8.81 117 20 4.46 6.69 8.97 MTZ044-4* 9130 3.12 5.84 2.93 10100 3.38 6.18 10.20 127 30 4.25 6.34 10.22 MTZ050-4* 10420 3.69 6 .51 2.83 11530 4.01 6.95 9.81 14110 4.87 7. 06 9.89 MTZ056-4* 1168 0 4.02 7. 45 2.90 13000 4.37 7.91 10.15 16050 5.40 8.03 10.14 MTZ064-4* 13360 4.61 8.35 2.90 14850 5.02 8.91 10.10 18090 6.14 9.01 10.06 MTZ072-4* 15320 5.42 9.85 2.83 170 50 5.87 10.48 9.91 20780 7. 30 10. 61 9.72 MTZ080-4* 17380 6.29 11.31 2.76 19330 6.83 12 .08 9.66 22870 8.24 11. 99 9.47 MTZ100-4* 20480 7. 38 13 .05 2.78 22700 8.00 13 .83 9.68 28230 9.86 14. 22 9.77 MT Z125 -4* 26880 9.48 16 .12 2.84 29780 10.33 17. 33 9.84 35620 12.83 19.24 9.48 MTZ144 -4* 29770 10.68 18.07 2.79 33060 11.59 19.35 9.74 40900 14.42 20.40 9.68 MTZ160-4* 34090 12 .41 20.68 2.75 37820 13.46 22.14 9.59 45220 16. 64 23 .13 9. 27

* 50 Hz, EN12900 data for indicated models are Asercom certiﬁed

To = 5°C, Tc = 50°C, SC = 0K, SH = 10K

Cooling

capacity

Power

input

Current

input

C .O.P.

W/W

To = 7.2°C, Tc = 54.4°C, SC = 8.3K, SH = 11.1K

Cooling

capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = 7.2°C, Tc = 54.4°C, SC = 8.3K, SH = 11.1K

Cooling

capacity

60 Hz, ARI ratings

Power

input

Current

input

Btu.h/W

E.E.R.

R134a Refrigeration Air Conditioning

50 Hz, EN12900 ratings

Compressor

model

MTZ018- 4 1075 0.69 1.92 1. 56 2532 0.99 2.19 8.74 3038 1.19 2.29 8.74 MTZ022-4 14 08 0.82 2.16 1.73 3335 1.20 2.51 9.52 4001 1.4 4 2.62 9.52 MTZ028-4 1823 1.02 2.83 1.79 4217 1.53 3.30 9.39 5061 1.84 3.44 9.39 MTZ032-4 2076 1.25 3.33 1.66 4907 1.87 3.94 8.94 5889 2.25 4 .11 8.94 MTZ036-4 2753 1.45 3.32 1.9 0 6013 2.13 4.09 9.62 7216 2.56 4.26 9.62 MTZ040-4 2914 1.61 3.81 1.81 6342 2.33 4.89 9.28 7610 2.80 5.10 9.28 MTZ044-4 2926 1.49 4.05 1.96 6836 2.22 4.73 10. 51 8203 2.66 4.93 10.51 MTZ050-4 3364 1. 80 4.32 1. 87 7956 2.63 5.20 10.31 9547 3.16 5.42 10. 31 MTZ056-4 3526 1.88 5.31 1.87 8621 2.85 6 .17 10.34 10346 3. 41 6.44 10.34 MTZ064-4 4192 2.17 5.71 1.9 4 10 057 3.26 6. 81 10.51 12069 3.92 7.10 10.51 MTZ072-4 4873 2.50 6.67 1.95 11543 3.78 7.99 10. 41 13852 4.54 8.33 10.41 MTZ080-4 5857 2.93 7.22 2.00 1326 2 4.35 8.83 10.41 15915 5.23 9.21 10 .41 MTZ100-4 6617 3.65 8.67 1.82 15452 5.28 10.24 10.00 185 42 6.34 10.68 10.00 MT Z125 -4 8306 4.17 8.89 1.99 18941 6.29 11.5 0 10.27 22729 7. 55 11.99 10.27 MTZ144 -4 10732 5.40 11. 35 1.99 23536 7. 83 14.19 10. 27 28243 9. 39 14.80 10.27 MTZ160-4 1190 0 5.84 11.71 2.04 25779 8.57 15.11 10. 27 30935 10.29 15. 76 10.27

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

ARI capacity and power input data are +/- 5% Asercom: Association of European Refrigeration Compressor and Controls Manufacturers ARI: Air Conditioning and Refrigeration Institute

To = -10°C, Tc = 45°C, SC = 0K , SH = 10K

Cooling

capacity

Power

input

Current

input

C .O.P.

To = 7.2°C, Tc = 54.4°C, SC = 8.3K, SH = 11.1K

Cooling

W/W

capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = 7.2°C, Tc = 54.4°C, SC = 8.3K, SH = 11.1K

Cooling

capacity

60 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

9AB196386425654en-021502

Application Guidelines

Speciﬁcations

Nominal performance data for R407A and R407F

R4 07A Refrigeration

50 Hz, EN12900 ratings

Compressor

model

MTZ018- 4 1740 1.02 2.46 1.70 1940 1.12 2.58 5.91 2330 1.35 2.69 5.89 MTZ022-4 2390 1.26 2.75 1.90 2650 1.39 2.91 6.51 3180 1.67 3.04 6.50 MTZ028-4 3130 1.67 3.63 1.88 3470 1.85 3.87 6.40 416 0 2.22 4.04 6.40 MTZ032-4 3640 1.84 3.82 1.98 4000 2.04 4.10 6.69 4800 2.53 4.28 6.48 MTZ036-4 4260 2.19 4.45 1.95 4670 2.43 4.80 6.56 5600 2.92 5.00 6.55 MTZ040-4 4890 2.51 5.28 1.94 5340 2.80 5.67 6.51 6 410 3.36 5.91 6.51 MTZ044-4 4890 2.36 4.81 2.08 5 410 2.60 5.11 7.1 0 6500 3.12 5.33 7.11 MTZ050-4 5700 2.73 5.35 2.09 6280 3.01 5.69 7.12 7530 3.61 5.94 7.12 MTZ056-4 6120 2.98 6 .14 2.05 6790 3.30 6.53 7.0 2 8140 3.96 6.81 7.0 2 MTZ064-4 7270 3.57 7. 04 2.04 8040 3.95 7. 51 6.95 9650 4.75 7. 83 6.93 MTZ072-4 8130 3.98 8.05 2.04 8960 4.40 8.55 6.95 10760 5.28 8.92 6.96 MTZ080-4 9540 4.76 9.17 2.00 10 470 5.28 9.85 6.77 125 70 6.33 10. 27 6.78 MTZ100-4 1120 0 5. 74 10.98 1.95 12320 6.32 11.65 6.65 14790 7.58 12.15 6.66 MT Z125 -4 14330 7.17 13.21 2.00 15740 7.9 3 14. 24 6.77 18890 9. 51 14. 86 6.78 MTZ144 -4 16870 8.32 15.08 2.03 184 60 9.18 16 .19 6.86 22150 11. 02 16. 89 6.86 MTZ160-4 18520 9.42 16 .91 1.97 20300 10.43 18.20 6.64 24360 12.51 18.99 6.65

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

To = -10°C, Tc = 45°C, SC = 0K, SH = 10K

Cooling

capacity

Power

input

Current

input

C .O.P. W/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

60 Hz, ARI ratings

Power

input

Current

input

Btu.h/W

E.E.R.

R407F Refrigeration

50 Hz, EN12900 ratings

Compressor

model

MTZ018- 4 1850 1.08 2.53 1.71 2080 1.19 2.66 5.97 2500 1.43 2.77 5.97 MTZ022-4 2540 1.33 2.83 1.91 2840 1.48 3.01 6.55 3410 1.77 3.14 6.58 MTZ028-4 3320 1.76 3.74 1.89 3710 1.96 4.00 6.46 4450 2.35 4.17 6.46 MTZ032-4 3860 1.94 3.93 1.99 4280 2.16 4.24 6.76 5130 2.59 4.42 6.76 MTZ036-4 4520 2.32 4.58 1.95 5010 2.58 4.95 6.63 6010 3.10 5 .17 6.62 MTZ040-4 517 0 2.65 5.43 1.95 5700 2.96 5.85 6.57 6840 3.55 6.10 6.58 MTZ044-4 5200 2.49 4.95 2.09 5810 2.76 5.28 7.18 6970 3.31 5.50 7.19 MTZ050-4 6060 2.90 5.50 2.09 6730 3.20 5.88 7.18 8080 3.85 6 .13 7.16 MTZ056-4 6500 3.16 6.31 2.06 7270 3. 51 6.74 7. 07 8730 4.21 7.0 3 7. 08 MTZ064-4 7730 3.78 7.23 2.05 8620 4.19 7. 76 7.0 2 10340 5.03 8.09 7. 02 MTZ072-4 8640 4.21 8.27 2.05 9 610 4.66 8.84 7. 04 115 30 5.60 9.22 7. 03 MTZ080-4 10140 5.04 9.43 2.01 11230 5.60 10.18 6.84 13470 6.72 10.61 6.84 MTZ100-4 1190 0 6.07 11. 28 1.96 13220 6.71 12.04 6.72 15870 8.05 12 .55 6.73 MT Z125 -4 15220 7. 58 13. 58 2.01 16870 8. 41 14.72 6.85 20240 10.09 15. 35 6.85 MTZ144 -4 17910 8.78 15. 50 2.04 197 70 9.72 16.73 6.94 23730 11.6 6 17.45 6.95 MTZ160-4 19 670 9.95 17.38 1.98 2174 0 11.03 18 .81 6.73 26090 13. 24 19. 62 6.73

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

To = -10°C, Tc = 45°C, SC = 0K, SH = 10K

Cooling

capacity

Power

input

Current

input

C .O.P. W/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

60 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

Asercom: Association of European Refrigeration Compressor and Controls Manufacturers ARI: Air Conditioning and Refrigeration Institute

10 AB196386425654en-021502

Application Guidelines

Speciﬁcations

Nominal performance data R448A/R449A and R452A

R448A/R449A Refrigeration

50 Hz, EN12900 ratings

Compressor

model

MTZ018- 4 1840 1.04 2.55 1.77 2030 1.14 2.66 6.08 2430 1.36 2.78 6.10 MTZ022-4 2580 1.37 2.86 1. 88 2820 1.52 3.03 6.33 3380 1.82 3.16 6.34 MTZ028-4 3180 1.69 3.85 1. 89 3480 1.87 4.07 6.35 4170 2.24 4.25 6.35 MTZ032-4 3660 1.87 3.68 1.9 6 3970 2.08 3.97 6 .51 4770 2.49 4.14 6.54 MTZ036-4 4250 2.24 4.65 1.90 4650 2.48 4.97 6.40 5580 2.98 5 .18 6.39 MTZ040-4 4880 2.62 5.87 1.86 5340 2.90 6.27 6.28 6 410 3.48 6.54 6.29 MTZ044-4 5010 2.49 4.94 2.01 5500 2.74 5.25 6.85 6600 3.28 5.48 6.87 MTZ050-4 5700 2.87 5. 41 1.98 6310 3.18 5.74 6.77 7570 3.82 5.99 6.76 MTZ056-4 6340 3.16 6.53 2.00 7010 3.50 6.93 6.84 8 410 4.20 7.23 6.83 MTZ064-4 7330 3.62 7. 05 2.02 8040 4.01 7.56 6.84 9650 4.81 7.89 6.85 MTZ072-4 8440 4.20 8.80 2.01 9260 4.64 9.44 6.81 11110 5.57 9.85 6. 81 MTZ080-4 10010 4.97 9.66 2.02 10930 5.48 10. 34 6. 81 13120 6.57 10.79 6.82 MTZ100-4 1131 0 5.79 10.99 1.95 12430 6.37 11. 66 6.66 14910 7.65 12.17 6.65 MT Z125 -4 15220 7.4 5 13. 24 2.04 16720 8 .19 14.06 6.97 20060 9.88 14.67 6.93 MTZ144 -4 17560 8.63 15 .45 2.03 19040 9. 50 16 .69 6.84 22850 11. 40 17. 40 6.84 MTZ160-4 20140 9.87 17.11 2.04 21830 10.87 18.48 6.85 26200 13.04 19.27 6.86

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

To = -10°C, Tc = 45°C, SC = 0K, SH = 10K

Cooling capacity

Power

input

Current

input

C .O.P.

W/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling capacity

60 Hz, ARI ratings

Power

input

Current

input

Btu.h/W

E.E.R.

R452A Refrigeration

50 Hz, EN12900 ratings

Compressor

model

MTZ018- 4 2000 1.15 2.65 1.74 2150 1.25 2.77 5.87 2580 1.49 2.88 5.91 MTZ022-4 2810 1.51 2.98 1.86 3010 1.65 3.15 6.23 3610 1.98 3.29 6.22 MTZ028-4 3250 1.86 4.00 1.75 3480 2.03 4.23 5.85 4170 2.44 4.41 5.83 MTZ032-4 3790 2.06 3.83 1.84 4060 2.27 4 .13 6.10 4870 2.73 4 .31 6.09 MTZ036-4 4300 2.48 4.84 1.74 4610 2.72 5.17 5.78 5530 3.26 5.39 5.79 MTZ040-4 5090 2.89 6 .11 1.76 5470 3 .18 6.52 5.87 6560 3.81 6.80 5.88 MTZ044-4 5370 2.73 5.24 1.96 5780 2.98 5.55 6.62 6940 3.58 5.79 6.62 MTZ050-4 6110 3.16 5.74 1.93 6630 3.47 6.07 6.52 7960 4 .16 6.33 6.53 MTZ056-4 6790 3.48 6.93 1.95 7370 3.82 7.33 6.58 8850 4.58 7. 64 6.59 MTZ064-4 7840 3.98 7.48 1.97 8450 4.36 8.00 6.61 10140 5.24 8.34 6.60 MTZ072-4 9020 4. 61 9.34 1.9 6 9730 5.06 9.98 6.56 11670 6.07 10.41 6.56 MTZ080-4 9680 5.26 10. 04 1.84 10390 5.75 10.72 6.17 12470 6.90 11.18 6.17 MTZ100-4 12310 6.37 11. 68 1.93 13270 6.97 12.42 6.50 15930 8. 37 12 .96 6.50 MT Z125 -4 16 070 8.19 14.09 1.96 17330 8.96 14.98 6.60 20790 10.75 15. 62 6.60 MTZ144 -4 17830 9.58 16.44 1.86 18950 10.4 6 17.77 6.18 22740 12 .55 18 .54 6.18 MTZ160-4 19880 10.80 18.20 1.84 21130 11.8 0 19. 68 6 .11 25360 14.16 20.52 6 .11

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

To = -10°C, Tc = 45°C, SC = 0K, SH = 10K

Cooling capacity

Power

input

Current

input

C .O.P.

W/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling capacity

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling capacity

60 Hz, ARI ratings

Power

input

Current

input

Btu.h/W

E.E.R.

11AB196386425654en-021502

Application Guidelines

Speciﬁcations

Nominal performance data R454C, R455A and R513A

R454C Refrigeration

50 Hz, EN12900 ratings

Compressor

model

To = -10°C, Tc = 45°C , SC = 0K , SH = 10K 50 Hz

Cooling

capacity

Power

input

Current

input

C .O.P.

W/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

MTZ018- 4 15 69 0.87 2.28 1.8 1734 0.96 2.36 6.19 211 0 1.16 2.24 6.22 MTZ022-4 2108 1.16 2.39 1.82 2309 1. 28 2.53 6.16 2909 1.64 2.64 6.06 MTZ028-4 2768 1.49 3.75 1.85 3646 1.84 3.61 6.77 3992 2.09 3.81 6.52 MTZ032-4 3317 1.67 3. 37 1.99 3021 1.63 3.93 6.32 4763 2.29 3.61 7.11 MTZ036-4 3722 1.97 4.43 1.89 4132 2.17 4.69 6.49 5325 2.73 4.63 6.64 MTZ040-4 4479 2.33 5.3 1.92 4918 2.59 5.64 6.49 6072 3.1 5.41 6.67

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

R455A Refrigeration

Compressor

model

To = -10°C, Tc = 45°C , SC = 0K , SH = 10K 50 Hz

Cooling

capacity

MTZ018- 4 17 08 1.0 2.5 1.71 18 82 1.09 2.56 5.87 2276 1.3 2.42 5.99 MTZ022-4 2424 1.27 2.53 1.91 2654 1.4 2.68 6.46 3394 1.76 2.78 6.58 MTZ028-4 3115 1. 6 3.77 1.95 3405 1.74 3.95 6.66 4416 2.22 3.87 6.79 MTZ032-4 3534 1.76 3.52 2.01 3849 1.92 3.72 6.85 5081 2.46 3.84 7.0 4 MTZ036-4 4002 2.08 4.57 1.93 4441 2.3 4.85 6.59 5661 2.87 4.78 6.73 MTZ040-4 4668 2.43 5.54 1.92 5110 2.69 5.87 6.49 6524 3.28 5.8 6.78

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

50 Hz, EN12900 ratings

Power

input

Current

input

C .O.P.

W/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

50 Hz, ARI ratings

Power

input

Current

input

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

E.E.R.

Btu.h/W

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

60 Hz, ARI ratings

Cooling

capacity

Power

input

Current

input

Btu.h/W

60 Hz, ARI ratings

To = -6.7°C, Tc = 48.9°C, SC = 0K, SH = 11.1K

Cooling

capacity

Power

input

Current

input

Btu.h/W

E.E.R.

R513A Refrigeration Air Conditioning

50 Hz, EN12900 ratings

Compressor

model

To = -10°C, Tc = 45°C , SC = 0K , SH = 10K

Cooling capacity

Power

input

Current

input

To = 7.2°C, Tc = 54.4°C , SC = 8.3K , SH = 11.1K

C .O.P.

W/W

Cooling capacity

MTZ018- 4 118 1 0.74 2.37 1.60 2757 1.03 2.63 9.15 3395 1. 23 2.40 9.45 MTZ022-4 154 6 0.88 2.13 1.76 3526 1.26 2.53 9.56 4425 1.58 2.57 9.56 MTZ028-4 1949 1.14 3.32 1.71 4426 1.6 4 3.77 9. 22 5608 2.02 3.59 9.49 MTZ032-4 2318 1.27 2.90 1. 83 5107 1.84 3.60 9.45 6543 2.30 3.60 9.73

MTZ036-4 2670 1.47 3.70 1.81 6 010 2.12 4.59 9.66 7145 2.59 4. 51 9.42 MTZ040-4 3169 1.78 4 .74 1.78 6888 2.53 5.62 9.28 8288 2.99 5.28 9.45 MTZ044-4 3183 1.68 4.13 1.89 7380 2.40 4.84 10. 51 8 915 2.94 4.82 10.38 MTZ050-4 3621 1.90 4.30 1.91 8085 2.73 5.27 10.10 9735 3.42 5.62 9.73 MTZ056-4 3822 2.05 5.27 1.87 8894 2.97 6.28 10.20 11241 3.80 6.19 10.10 MTZ064-4 4419 2.34 5.70 1.89 10141 3.44 6.91 10.07 12580 4.34 6.91 9.90 MTZ072-4 5037 2.70 7. 05 1.87 114 36 3.95 8.35 9.90 14 046 4.97 8 .12 9.66 MTZ080-4 5700 3.09 7. 27 1. 85 12963 4.54 8.86 9.73 16031 5.76 9.02 9.52 MTZ100-4 7150 3.91 8.96 1.83 15950 5.53 10.65 9.86 19397 6.72 10.54 9.86 MT Z125 -4 9614 4.81 9.73 2.00 21058 7. 00 12 .58 10.27 25367 8.69 13 .03 9.97 MTZ144 -4 10999 5.60 11.70 1.96 23855 8.10 14.64 10.07 28791 9.98 15. 04 9.86 MTZ160-4 12490 6.38 12.63 1.96 26 641 9.26 16.28 9.83 31756 11. 57 16.80 9.39

To: Evaporating temperature at dew point (saturated suction temperature) Tc: Condensing temperature at dew point (saturated discharge temperature) SC: Subcooling SH: Superheat

ARI capacity and power input data are +/- 5% Asercom: Association of European Refrigeration Compressor and Controls Manufacturers ARI: Air Conditioning and Refrigeration Institute

50 Hz, ARI ratings

Power

input

Current

input

E.E.R.

Btu.h/W

To = 7.2 °C, Tc = 54.4°C , SC = 8.3K , SH = 11.1K

60 Hz, ARI ratings

Cooling capacity

Power

input

Current

input

E.E.R.

Btu.h/W

12 AB196386425654en-021502

Application Guidelines

MT - R22 - R417A

Operating envelopes

The operating envelopes for MT and MTZ compressors are given in the ﬁgures below and

guarantees reliable operations of the compressor for steady-state operation.

MTZ - R407C at DEW point

MTZ - R134a

Condensing temperature (°C)

-25-30 -20 -15 -10

Condensing temperature (°C)

-25-30 -20 -15 -10

S.H. = 11.1 K

Evaporating temperature (°C)

-5

Evaporating temperature (°C)

0510 15 20

MTZ R134a

SH 10K RGT 20°C

0510 15 20

S.H. = 30 K

MTZ - R404A / R507A

13AB196386425654en-021502

Application Guidelines

MTZ – R407A at Dew Point

MTZ – R407F at Dew Point

Operating envelopes

SH 10K

RGT 20°C

SH 10K

RGT 20°C

MTZ – R448A/R449A

-35 -30 -25 -20 -15 -10 10 15-5 05

SH 10K

RGT 20°C

SH10K RGT20

14 AB196386425654en-021502

Application Guidelines

Operating envelopes

MTZ – R452A

MTZ – R454C/R455A

SH 10K

-35 -30 -25 -20 -15 -10 10 15-5 05

SH10K RGT20

-35 -30 -25 -20 -15 -10 10 15-5 05

SH 10K

RGT 20°C

SH10K

RGT20°C

15AB196386425654en-021502

Application Guidelines

Operating envelopes

MTZ – R513A

Discharge temperature protection

-30 -25 -20 -15 -10 -5 10 15 20 2505

Even when the motor windings are

SH 10K

RGT 20°C

SH10K

protected against overheating by the internal motor protection, the compressor discharge gas temperature could exceed the maximum allowed value of 135°C when the compressor is operated outside its application envelope. The most eﬀective protection against too high discharge gas temperature is to mount a discharge gas thermostat. An accessory kit is available from Danfoss which includes the thermostat, mounting bracket and insulation. The thermostat must be attached to the

RGT20°C

discharge line as indicated below at no more than 150 mm from the discharge connection.

Thermostat

Discharge line

Bracket

Insulation

Zeotropic refrigerant mixtures

16 AB196386425654en-021502

Refrigerant mixtures can be either zeotropic or azeotropic.

An azeotropic mixture (like R502 or R507A) behaves like a pure refrigerant. During a phase transition (from vapour to liquid or from liquid to vapour) thecomposition of vapour and liquid stays the same.

In a zeotropic mixture (like R407C) on the other hand the composition of vapour and liquid changes during the phase transition. When the eﬀect of this phase transition is very small, the mixture is often called a near-azeotropic mixture. R404A is such a near-azeotropic mixture.

The composition change causes phase shift and temperature glide.

Application Guidelines

Operating envelopes

Phase shift

Temperature glide

In system components where both vapour and liquid phase are present (evaporator, condenser, liquid receiver), the liquid phase and vapour phase do not have the same composition. In fact both phases form two diﬀerent refrigerants. Therefore zeotropic refrigerants need some

During the evaporating process and the condensing process at constant pressure, the refrigerant temperature will decrease in the condenser and rise in the evaporator. Therefore when speaking about evaporating and condensing temperatures, it is important to indicate whether this is a dew point temperature or a mean point value. In the ﬁgure below, the dotted lines are lines of constant temperature.

They do not correspond to the lines of constant pressure.

Points A and B are dew point values. These are temperatures on the saturated vapour line.

special attention. Zeotropic refrigerants must always be charged in liquid phase. Flooded evaporators should not be applied in systems with zeotropic refrigerants. This also applies to near-azeotropic mixtures.

Points C and D are mean point values. These are temperatures which correspond more or less with the average temperature during the evaporating and condensing process. For the refrigerants with glide of around 6K, mean point temperatures are typically about 2°C to 3°C lower than dew point temperatures. According to Asercom recommendations, Danfoss Commercial Compressors uses dew point temperatures for selection tables and application envelopes etc.

To obtain exact capacity data at mean point temperatures, the mean point temperatures must be converted to dew point temperatures with help of refrigerant data tables from the refrigerant manufacturer.

Dew temperature and Mean temperature for zeotropic mixtures

17AB196386425654en-021502

Application Guidelines

1 cylinder

Outline drawings

Bump on single phase

LP gauge port 1/4” (schrader)

Suction: 142 Discharge: 142

(1)

/ 147

(1) (2)

Ø 224

Suction rotolock

(1)

1”

(2)

1”1/4

(1)

333

(2)

356

oil equalisation

3/8”

Mounting hole for PTC crankcase heater

33°

118

Threaded oil sight glass

109

35°

(2)

Discharge rotolock 1”

All dimensions in mm

Model

1 3 4 5 6 7 9

Code

MT/MTZ018 (1) (1) (1) (1) - - -

263

MT/MTZ022 (2) (1) (1) (1) (1) - (1)

MT/MTZ028 (2) (1) (1) (1) (1) - (1) MT/MTZ032 (2) (2) (2) (2) (2) (2) (2) MT/MTZ036 (2) (2) (2) (2) (2) (2) (2) MT/MTZ040 (2) (2) (2) - (2) - -

141

159

17°

Silent bloc

MT/MTZ 018 - 022 (3/4/5/6/9) 028 (3/4/5/6)

MT/MTZ022/1-028/1-032 - 036

- 040

123

Terminal box

Bolt HM8-40

Ø 31.75

Rotolock connections size Pipe sizing Rotolock valve

Suction Discharge Suction Discharge Suction Discharge

1" 1" 1/2 " 3/8" V06 V01

1"1/4 1" 5/8" 1/2 " V09 V06

Spade connectors 1/4" AMP-AWE

Earth M4-12

Knock-out Ø 21 mm

IP rating: 55 (with cable gland)

Ø 21 mm

18 AB196386425654en-021502

413

Ø 288

265

Spade connectors 1/4" AMP-AWE

Earth M4-12

Ø 21 mm

Knock-out Ø 21 mm

Application Guidelines

2 cylinders

Schrader 1/4"

252

(1)

(2)

117

(1)

(2)

Suction 179 Discharge 176

145

Outline drawings

38°

171

Suction rotolock 1"3/4

Discharge rotolock 1"1/4

Oil equalisation 3/8"

Mounting hole for PTC crankcase heater

(1)

Threaded oil sight glass

156

8°

All dimensions in mm

Model

1 3 4 6 7 9

Code

(2)

/ 98

MT/MTZ044 (1) (1) (1) (2) (1) (1) MT/MTZ050 (2) (1) (1) (2) (1) (1) MT/MTZ056 (2) (1) (1) (2) (1) (1) MT/MTZ064 (2) (1) (1) (2) - (1)

MT/MTZ072 - (1) (1) (2) - (1) MT/MTZ080 - (2) (1) (2) - (1)

Silent bloc

125

(1)

/ 196

188

Ø 31.75

8°

(2)

Terminal box for model (1)

Terminal box for model (2)

Screw

Bolt HM8-40

IP rating: 55 (with cable gland)

10-32 UNF x 9.5

Earth M4-12

Knock-out Ø 29 mm

IP rating: 54 (with cable gland)

Rotolock connections size Pipe sizing Rotolock valve

Suction Discharge Suction Discharge Suction Discharge

MT/MTZ 044 - 050 - 056 - 064 - 072 1" 3/4 1"1/4 7/ 8" 3/4" V07 V04

MT/MTZ 080 1"3/4 1"1/4 1"1/8 3/4" V02 V04

Knock-out Ø 25.5 mm

19AB196386425654en-021502

Ø 352

538 (2) 518 (1)

Threaded oil

Application Guidelines

4 cylinders

Outline drawings

Schrader 1/4 "

Suction rotolock 1"3/4

Discharge rotolock 1"1/4

210

117

155

232

155°

15°

246

205

Oil equalisation 3/8"

Mounting hole for PTC crankcase heater

15°

246

15°

All dimensions in mm

233

125

209

Model

Code

3 4 6 7 9

MT/MTZ100 (1) (1) (1) (1) (1) MT/MTZ125 (1) (1) (1) (1) (1) MT/MTZ144 (2) (2) (2) (2) (2) MT/MTZ160 (2) (2) (2) (2) (2)

sight glass

20 AB196386425654en-021502

Terminal box

Screw 10-32 UNF x 9.5

Earth M4-12

Knock-out Ø 29 mm

IP rating: 54 (with cable gland)

MT/MTZ100 - 125 - 144 - 160

Silent bloc

Knock-out Ø 25.5 mm

Rotolock connections size Pipe sizing Rotolock valve

Suction Discharge Suction Discharge Suction Discharge

1"3/4 1"1/4 1"1/8 3/4" V02 V04

Application Guidelines

Electrical connections and wiring

Single phase electrical characteristics

Nominal capacitor values and relays

* PSC: Permanent Split Capacitor CSR: Capacitor Start Run (1) Run capacitors: 440 volts (2) Start capacitors: 330 Volts

LRA - Locked Rotor

Current (A)

Motor Code 1 5 1 5 1 5

Winding run start run start

MT/MTZ018 53 40 13 10 1.35 4.25 1.35 3.83 MT/MTZ022 53 41 17 15 1.20 2 .31 1.35 3.83 MT/MTZ028 81 51 25 20 0.68 1.84 1.07 3.26 MT/MTZ032 84 70 26.5 20 0.63 2.90 0.80 4.23 MT/MTZ036 84 60 30 22 0.63 2.90 0.80 4.23 MT/MTZ040 99 - 34 - 0.54 1.87 - MT/MTZ044 97 - 31 - 0.46 1.94 - MT/MTZ050 114 - 36 - 0.38 1.83 - MT/MTZ056 136 - 42.5 - 0.33 1.64 - MT/MTZ064 143 - 46 - 0.33 2.14 - -

Models

MT/MTZ018 JA-5 20 10 100 MT/MTZ022 JC-5 20 10 100

50 Hz

60 Hz

MT/MTZ028 JE-5 20 10 100 MT/MTZ032 JF-5 25 10 135 MT/MTZ036 JG-5 25 10 135 MT/MTZ018 JA-1 15 10 100 MT/MTZ022 JC-1 30 15 100 MT/MTZ028 JE-1 25 25 135 MT/MTZ032 JF-1 25 20 100 MT/MTZ036 JG-1 25 20 10 0 MT/MTZ040 JH-1 35 20 100 MT/MTZ044 HJ-1 30 15 135 MT/MTZ050 HK-1 30 15 135 MT/MTZ056 HL-1 35 20 200 MT/MTZ064 HM-1 30 25 235

MCC - Maximum

Continuous Current (A)

PSC/CSR* CSR only

Run capacitors (1) Start capacitors (2)

(A) µF (C) µF (B) µF

Winding resistance (Ω)

( ± 7 % at 25° C)

Start relay

3ARR3J4A4

/RVA6AMKL

3ARR3J4A4

/RVA6AMKL

Trickle circuit

PSC wiring

CSR wiring

The trickle circuit provides the facility of heating the compressor crankcase by feeding a small current to the auxiliary winding and the run capacitor (See the drawings in section “Electrical connections and wiring”).

PSC wiring may be used for refrigerant circuits with capillary tubes or expansion valves with bleed ports. Pressure equalisation must be

CSR wiring provides additional motor torque at start-up, by the use of a start capacitor in combination with the run capacitor. This system can be used for refrigerant circuits with capillary tubes or expansion valves. The start capacitor is only connected during the starting operation, a potential relay is used to disconnect it after the start sequence.

By using PSC or CSR starting systems, compressor models MT / MTZ 018 - 022 can be operated without crankcase heaters as the heater function is provided by the trickle circuit.

For the larger single phase compressor

models MT / MTZ 028 - 064, the use of the PTC crankcase heater is recommended.

ensured before start-up because of the low starting torque characteristics of this system.

Some applications with high diﬀerential pressure can require a very high starting torque. For such cases the CSR starting kit can be converted to a very high starting torque kit by an additional start capcitor of 100 F parallel to the start capacitor of the CSR kit. This conﬁguration can also be used to reduce erratic starting at unfavourable conditions such as very low ambient temperature or weak voltage.

21AB196386425654en-021502

Application Guidelines

Suggested wiring diagrams

Single phase - PSC wiring with trickle circuit

Electrical connections and wiring

230 V

IOL Motor protector A & C Run capacitors C Common S Start winding (auxiliary) R Run winding (main)

Single phase - CSR wiring with trickle circuit

IOL Motor protector A & C Run capacitors B Start capacitor C Common S Start winding (auxiliary) R Run winding (main)

Thermostat

230 V

Thermostat

220 kΩ - 1 W

A µF

220 kΩ - 1 W

A µF

C µF

Start relay

B µF

15 kΩ - 1 W

IOL

Single phase - CSR wiring without trickle circuit

IOL Motor protector A+C Run capacitors B Start capacitor C Common S Start winding (auxiliary) R Run winding (main) Capacitors A and C can be replaced by a single capacitor of size A + C B capacitor delivered in two parts for MT(Z)56 & 64-1

22 AB196386425654en-021502

230 V

Thermostat

CµF Run capacitor

AµF Run capacitor

Start capacitor

Start Relay

BµF

IOL

15 kΩ -1 w

Application Guidelines

Three phase electrical characteristics

Electrical connections and wiring

LRA - Locked Rotor

Current (A)

MCC - Maximum

Continuous Current (A)

Winding resistance (Ω)

( ± 7 % at 25° C)

Motor Code 3 4 6 7 9 3 4 6 7 9 3 4 6 7 9

MT/MTZ018 38 20 - - - 9.5 5 - - - 2.58 9.34 3.41 - -

MT/MTZ022 38 20 30 - 22.5 11 6 8.5 - 6.5 2.58 11.84 3. 41 - 7. 30

MT/MTZ028 57 23 41 - 32 16 7. 5 11. 5 - 8.5 1.41 6.30 1.20 - 4.72

MT/MTZ032 60 25 44 22 35 18 8 13 5.5 9 1.32 4.45 2.01 10.11 3.40

MT/MTZ036 74 38 74 26 35 17 9 17 7 9.5 1.10 5.92 1.10 9.39 -

MT/MTZ040 98 38 74 - - 22 10 18 - - 0.89 4.05 1.10 - -

MT/MTZ044 115 48.5 77 44 78 22 9. 5 16 8.5 13 0.76 3.29 1.15 5.95 1.72

MT/MTZ050 115 48.5 77 44 78 25 11 .5 19 10 13 .5 0 .74 3.42 1.42 5.95 1.72

MT/MTZ056 130 64 105 50 72 24 14 23 11 15 0.56 2.44 0.78 3.94 1.67

MT/MTZ064 137 64 124 - 72 29 14 25 - 17.5 0.58 2.44 0.78 - 1.67

MT/MTZ072 135 80 143 - 100 30 17 27 - 18. 5 0.56 1.94 0.57 - 1.35

MT/MTZ080 140 80 132 - 102 36 19 29 - 22.5 0.49 1.94 0.57 - 1.33

MT/MTZ100 157 90 12 6 62 110 43 22 35 17 26 0. 51 2.12 0.68 3 .17 1.29

MT/MTZ 125 210 105 170 75 150 54 27 43 22 30 0.39 1.45 0.44 2.56 0.86

MT/MTZ 144 259 130 208 90 165 64 36 51 25 40 0.28 1.15 0.38 2.04 0.74

MT/MTZ 160 259 130 208 99 165 70 36 51 29 46 0.28 1.15 0.38 1.80 1.12

Winding resistance

Winding resistance is the resistance between indicated terminal pins at 25°C (resistance value

Winding resistance is generally low and it requires adapted tools for precise measurement.

+/- 7%).

Motor protection and suggested wiring diagrams

Suggested wiring diagram with “one shot” pump-down cycle and safety lock-out relay

Control device ................................................ TH

Optional short cycle timer (3 min) ..... 180 s

Control relay .................................................... KA

Liquid Solenoid valve ............................... LLSV

Compressor contactor ................................ KM

Safety lock out relay ...................................... KS

Pump-down control & LP switch ............... LP

H.P. switch ........................................................ HP

Fused disconnect .......................................... Q1

Fuses ................................................................... F1

Compressor motor .......................................... M

Discharge gas thermostat ....................... DGT

The 3-phase compressors are protected by an internal motor protector, connected to the neutral point of the star connected stator windings, the protector cuts out all 3-phases simultaneously.

CONTROL CIRCUIT

F1F1

KA KA

Note: once the overload protector has tripped it may take up to 3 hours to reset and restart the compressor. For all 3-phase compressors, a PTC crankcase heater is required.

L1 L3 L2

180 s

LLSV KS

DGT

23AB196386425654en-021502

Application Guidelines

Electrical connections and wiring

Wiring diagram without pump-down cycle

Control device ................................................ TH

Optional short cycle timer (3 min) ..... 180 s

Control relay .................................................... KA

Compressor contactor ................................ KM

Safety lock out relay ...................................... KS

High pressure switch .................................... HP

Low pressure switch ....................................... LP

Fused disconnect .......................................... Q1

Fuses ................................................................... F1

Compressor motor .......................................... M

Discharge gas thermostat ....................... DGT

Soft starters

CONTROL CIRCUIT

F1F1

KA KA

180 s

KM KA

Softstarters are designed to reduce the starting current of 3-phase AC motors.

Softstarters can be used on MTZ and MT compressor but, in order to ensure proper lubrication of compressor parts, the settings must ensure that the compressor start-up time is always less than 0.5 seconds.

L1 L3 L2

KA KS

DGT

In case of use with R454C or R455A make sure that the softstarter selected is compatible with A2L refrigerants.

The number of starts should be limited to 6 per hour. HP/LP pressure equalisation is required before starting.

Voltage application range

IP rating

Motor Code Nominal voltage Voltage application range

1 208-230 V / 1 ph / 60 Hz 187 - 253 V 3 200-230 V / 3 ph / 60 Hz 180 - 253 V

380-400 V / 3 ph / 50 Hz 340 - 440 V

460 V / 3 ph / 60 Hz 414 - 506 V 5 220-240 V / 1 ph / 50 Hz 198 - 264 V 6 230 V / 3 ph / 50 Hz 207 - 253 V

500 V / 3 ph / 50 Hz 450 - 550 V

575 V / 3 ph / 60 Hz 517 - 632 V 9 380 V / 3 ph / 60 Hz* 342 - 418 V

* Some models are approved for 380 - 400 V / 3 ph / 60 Hz. Please check datasheet.

The compressor terminal boxes IP rating according to CEI 529 are shown on the outline

The IP ratings are only valid when correctly sized cable glands of the same IP rating are applied.

drawings section.

IP 5 5

1st numeral, level of protection against contact and foreign objects 5 complete protection against contact and against harmful dust deposits

2nd numeral, level of protection against water 4 protection against water splashing from any direction 5 protection against jets of water from any direction

MT/ MTZ 1cyl = IP55 -- MT/ MTZ 2 cyl check section outline drawings -- MT/MTZ 4cyl = IP54

24 AB196386425654en-021502

Application Guidelines

Refrigerants and lubricants

General information

When choosing a refrigerant, diﬀerent aspects must be taken into consideration:

• Legislation (now and in the future)

• Safety

• Application envelope in relation to expected running conditions

Additional points could inﬂuence the ﬁnal choice:

• Environmental considerations

• Standardisation of refrigerants and lubricants

• Refrigerant cost

• Refrigerant availability

• Compressor capacity and eﬃciency

• Compressor manufacturer recommendations & guidelines

Only Danfoss lubricant are allowed for Maneurop® MT & MTZ compressors.

Refrigerant Ty pe

R22 HCFC Mineral MT Mineral oil, 160P Medium / High temperature

R417A HFC Polyolester MT Polyolester oil 175PZ Medium / High temperature

R407A / C / F HFC Polyolester MTZ Polyolester oil 175PZ Medium / High temperature

R134a HFC Polyolester MTZ Polyolester oil 175PZ Medium / High temperature

R404A HFC Polyolester MTZ Polyolester oil 175PZ Medium temperature

R5 07A HFC Polyolester MTZ Polyolester oil 175PZ Medium temperature

R448A /

R449A

R454C /

R455A

R452A HFC+HFO Polyolester MTZ Polyolester oil 175PZ Medium/High temperature

HFO Polyolester MTZ Polyolester oil 175PZ Medium/High temperature

Lubricant

type

Compressor

type

The table below gives an overview of the diﬀerent refrigerant - lubricant - compressor combinations for Maneurop® MT & MTZ compressors.

Danfoss lubricant Application

R22

Alternatives R22, HFC retroﬁt

R407C

Alternative R22 retroﬁt

with HFC refrigerants

Hydrocarbons

Polyolester MT/MTZ Polyolester oil 175PZ Medium / High temperature

Danfoss does not authorise the use of hydrocarbons in Maneurop® MT/MTZ

Capacity and other data for HFC blends refrigerants are not published in this document. Maneurop® compressors however are suitable for use with these refrigerants and can still be used

R22 is an HCFC refrigerant . It has a high GWP and therefore it will be phased out in the future. Check local legislation. Always use mineral oil 160P with R22.

A wide variety of HFC blends exist. There were developed as temporary HCFC and HFC high GWP alternatives. Some examples are R422A/D

Refrigerant R407C is an HFC refrigerant with similar thermodynamic properties to those of R22.

R407C has zero ozone depletion potential (ODP=0). Many installers and OEMs consider R407C to be the standard alternative for R22. R407C is a zeotropic mixture and has a temperature glide of about 6 K. For more speciﬁc

compressors

as replacements in existing installations, see technical news FRCC.EN.049. and FRCC.EN.085. for more information on retroﬁt.

The Maneurop® MT compressor is supplied with an initial mineral oil charge.

- R427A, ... Retroﬁt technical news have been issued to advice about use of these refrigerants.

information about zeotropic refrigerants; refer to section "zeotropic refrigerant mixtures". R407C must be charged in the liquid phase.

Always use the Maneurop® MTZ compressors with Danfoss 175PZ polyolester oil, which is supplied with the MTZ compressor.

25AB196386425654en-021502

Application Guidelines

Refrigerants and lubricants

R134a

R404A

R507A

Refrigerant R134a is an HFC refrigerant with zero ozone depletion potential (ODP = 0).

For applications with high evaporating and high condensing temperatures, R134a is the

Refrigerant R404A is an HFC refrigerant with zero ozone depletion potential (ODP = 0). R404A is especially suitable for low evaporating temperature applications but it can also be applied to medium evaporating temperature applications. R404A is a mixture and has a very small temperature glide, and therefore must be charged in its liquid phase, but for most other aspects this small glide can be neglected. Because of the small glide, R404A is often called

Refrigerant R507A is an HFC refrigerant with no ozone depletion potential (ODP = 0). As with R404A, R507A is particularly suitable for low evaporating temperature applications but it can also be used for medium evaporating temperature applications. R507A is an azeotropic mixture with no temperature glide. For low

ideal choice. R134a is a pure refrigerant and has zero temperature glide. For R134a applications always use the Maneurop® MTZ compressor with Danfoss 175PZ polyolester oil which is supplied with the MTZ compressor.

a near-azeotropic mixture. For more information refer to section «zeotropic refrigerant mixtures». For low evaporating temperature applications down to -45°C, Maneurop® NTZ compressors should be used. Refer to the NTZ selection and application guidelines. For medium temperature R404A applications, always use the Maneurop® MTZ compressor with 175PZ polyolester oil which is supplied with the MTZ compressor.

evaporating temperature applications down to

-45°C, Maneurop® NTZ compressor should be used. Refer to the NTZ selection and application guidelines. For medium temperature R507A applications, always use the Maneurop® MTZ compressor and Maneurop® 175PZ polyolester oil which is supplied with the MTZ compressor.

R407A

R407F

R448A/R449A

Refrigerant R407A is an HFC with similar thermodynamic properties to those of R404A, R407A is a zeotropic refrigerant and has a temperature glide of about 6,6K. For more speciﬁc information about zeotropic refrigerant, refer to section “zeotropic refrigerants mixtures”

Refrigerant R407F is an HFC with similar thermodynamic properties to those of R404A, R407F is a zeotropic refrigerant and has a temperature glide of about 6,4K. For more speciﬁc information about zeotropic refrigerant, refer to section “zeotropic refrigerants mixtures” and read FRCC.EN.085. R407F must be charged

R448A/R449A is an HFO/HFC Blend, with similar thermodynamic properties to those of R404A or R22. R448A/R449A is a Zeotropic refrigerant and has a temperature glide of about 6,1/6,3K. For more speciﬁc information about zeotropic refrigerant, refer to section “zeotropic refrigerants mixtures” and read FRCC.EN.085.

and read FRCC.EN.085. R407A must be charged in liquid phase, R407A GWP is stated at 2107 [CO=1,0]. Always use the Maneurop MTZ compressors with danfoss 175PZ polyolester oil, which is supplied with the MTZ compressors.

in liquid phase, R407F GWP is stated at 1825 [CO=1,0]. R407F is mainly suitable for high & medium temperature application- Always use the Maneurop MTZ compressors with danfoss 175PZ polyolester oil, which is supplied with the MTZ compressors.

R448A/R449A must be charged in liquid phase, R448A GWP is stated at 1387/1397 [CO=1,0]. Always use the Maneurop MTZ compressors with Danfoss 175PZ polyolester oil, which is supplied with the MTZ compressors.

26 AB196386425654en-021502

Application Guidelines

Refrigerants and lubricants

R452A

R454C/R455A

R513A

R452A is an HFO/HFC Blend, with similar thermodynamic properties to those of R404A or R22. R452A is a Zeotropic refrigerant and has a temperature glide of about 4K. For more speciﬁc information about zeotropic refrigerant, refer to section “zeotropic refrigerants mixtures”

R454C/R455A is an HFO Blend, with similar thermodynamic properties to R404A. R454C/ R455A is a Zeotropic refrigerant and has a temperature glide of about 6K /12K and therefore must be charged in liquid phase.

For R454/R455A C GWP is stated below 150 limit. Always use the Maneurop MTZ compressors with Danfoss 175PZ polyolester oil.

R454C/R455A is classiﬁed A2L with low ﬂammability properties. Please refer to European regulation and directives about the use of

R513A is an HFO/HFC Blend, with similar thermodynamic properties to the R134a. R513A is a Azeotrope refrigerant with a negligible glide.

R513A has zero ozone depletion potential (ODP=0) and a Global Warming Potential (AR5) at 573 [CO=1] . Always use the Maneurop® MTZ compressors with Danfoss 175PZ polyolester oil.

and read FRCC.EN.085. R452A must be charged in liquid phase, R452A GWP is stated at 1945 [CO=1,0]. Always use the Maneurop® MTZ compressors with Danfoss 175PZ polyolester oil, which is supplied with the MTZ compressors.

refrigerant of the A2L safety group (EN378, EN60335). Outside Europe refer to the local regulation.

With R454C/R455A, liquid migration to the

compressor have to be avoid:

- Maintain adequate superheat setting of minimum 8-10K

- Use solenoid valve on the liquid line and pump down is recommended.

- Use a crankase heater to avoid dissolution of the lubricant.

With R513A, liquid migration to the

compressor have to be avoid:

- Maintain adequate superheat setting of minimum 8-10K

- Use solenoid valve on the liquid line and pump down is recommended.

- Use a crankase heater to avoid dissolution of the lubricant.

Hydrocarbons

Hydrocarbons such as propane, isobutane etc. are extremely ﬂammable. Danfoss does not authorise the use of hydrocarbons with

Maneurop® MT or MTZ compressors in any way, even with a reduced refrigerant charge.

27AB196386425654en-021502

Application Guidelines

System design recommendations

Piping design

Suction lines

Oil in a refrigeration circuit is required to lubricate moving parts in the compressor. During normal system operation small oil quantities will continuously leave the compressor, with the discharge gas. With good system piping design this oil will return to the compressor. As long as the amount of oil circulating through the system is small it will contribute to good system operation and improved heat transfer eﬃciency. However, too large amounts of oil in the system will have a negative eﬀect on condenser and evaporator eﬃciency. If, in a poorly designed

Horizontal suction line sections shall have a slope of 0.5% in the direction of refrigerant ﬂow (5 mm per meter). The cross-section of horizontal suction lines shall be such that the resulting gas velocity is at least 4 m/s. In vertical risers, a gas velocity of 8 to 12 m/s is required to ensure proper oil return. A U-trap is required at the foot of each vertical riser. If the riser is higher than 4 m, additional U-traps are required for each additional 4 meters. The length of each U-trap must be as short as possible to avoid the accumulation of excessive quantities of oil (see ﬁgure below).

system, the amount of oil returning to the compressor is lower than the amount of oil leaving the compressor, the compressor will become starved of oil and the condenser, evaporator and/or refrigerant lines will become ﬁlled with oil. In such situations, additional oil charge will only correct the compressor oil level for a limited period of time and increase the amount of surplus oil in the rest of the system.

Only correct piping design can ensure a good oil balance in the system.

Gas velocities higher than 12 m/s will not contribute to signiﬁcantly better oil return. However they will cause higher noise levels and result in higher suction line pressure drops which will have a negative eﬀect on the system capacity.

For compressors mounted in parallel, the common suction riser should be designed as a double riser. Also refer to the News bulletin "Mounting instructions for installation of Maneurop® compressors in parallel " and "Parallel application guidelines".

Note that the suction rotolock valves, which can be ordered from Danfoss as accessories, are designed for average pipe sizes, selected for systems running at nominal conditions.

Discharge line When the condenser is mounted above the

compressor, a loop above the condenser and a U-trap close to the compressor are required to prevent liquid draining from the condenser into the discharge line during standstill.

The pipe sizes selected for speciﬁc systems may diﬀer from these recommended sizes.

It is recommended that the suction lines are insulated to limit suction gas superheat.

28 AB196386425654en-021502

Application Guidelines

System design recommendations

Oil charge and oil separator

Filter driers

Operating limits

High pressure

Low pressure

In most installations the initial compressor oil charge will be suﬃcient. In installations with line runs exceeding 20 m, or with many oil traps or an

installations with the risk of slow oil return such as in multiple evaporator or multiple condenser installations, an oil separator is recommended.

oil separator, additional oil may be required. In

For new installations with MTZ compressors Danfoss recommends using the Danfoss DML

ﬁlter driers containing activated alumina are

recommended. 100%-molecular sieve, solid core ﬁlter drier. Molecular sieve ﬁlter driers with loose beads from third party suppliers shall be avoided.

The drier is to be oversized rather than

undersized. When selecting a drier, always

take into account its capacity (water content For servicing of existing installations where acid formation is present the Danfoss DCL solid core

A high pressure safety switch is required to stop the compressor, should the discharge pressure exceed the values shown in the table below. The high pressure switch can be set to lower values depending on the application and ambient conditions.

A low pressure safety switch is recommended to avoid compressor operation at too lower

capacity), the system refrigerating capacity and

the system refrigerant charge.

The HP switch must either be in a lockout circuit, or be a manual reset device to prevent compressor cycling around the high pressure limit. When a discharge valve is used, the HP switch must be connected to the service valve gauge port, which cannot be isolated.

suction pressures.

MT MTZ

R22

160P

Test pressure low side 25 25 25 25 25 25 25 25 25 25 25 25 25

Working pressure range high side

Working pressure range low side

*Relief valve opening pressure diﬀerence

*Relief valve closing pressure diﬀerence

* Relief v alve ﬁtted on 2 and 4 c yl.

10.9 - 27.7 9.32 - 25.5 11.6 - 25.8 12.5 - 29.4 12.1 - 24 7.87 - 22.6 13.2 - 27.7 12. 5-2 7.3 11.7-25.9 11.7-26 .0 5.2 - 22.3 8.37-23.36 5.6-22.3

1.01 - 6.89 0.54 - 5.66 0.53 - 5.94 1.43 - 6.55 0.99 - 6.25 0.06 - 4.72 1.04 - 7.2 0.84-6.69 0.6- 6.07 0.6-6.08 0.4 - 5.2 0 .21- 5.12 5.6-22.3

Low ambient temperature operation

R417A 175P Z

30 30 30 30 30 30 30 30 30 30 30 30 30

8 8 8 8 8 8 8 8 8 8 8 8 8

R4 07A 175P Z

R407C 175P Z

R407F 175P Z

R134 a 175P Z

R404A/R507A

175P Z

bar (g)

At low ambient temperatures, the condensing temperature and condensing pressure in air cooled condensers will decrease.

R452A R449A R448A R454 C R513 A R455A

valve in the discharge line is required and special care should be taken when designing the discharge line.)

• Reduce air ﬂow to condensers.

This low pressure may be insuﬃcient to supply enough liquid refrigerant to the evaporator. As a result the evaporator temperature will strongly decrease with the risk of frosting. At compressor start-up, the compressor can pull a deep vacuum

Other problems can also occur when the compressor is operating at low ambient temperature. During shut down periods, liquid refrigerant can migrate to a cold compressor.

and it can be switched oﬀ by the low pressure protection. Depending on the low pressure switch setting and delay timer short cycling can

For such conditions a belt-type crankcase heater is strongly recommended.

occur. To avoid these problems, several solutions are possible, based on reducing condenser capacity:

• Indoor location of condensers

Note that with 100% suction gas cooled motors, Maneurop® compressors can be externally insulated.

• Liquid ﬂooding of condensers (note: this solution requires extra refrigerant charge, which can introduce other problems. A non-return

Refer to section "Liquid refrigerant control & charge limits" for more details.

29AB196386425654en-021502

Application Guidelines

Operating voltage and cycle rate

Operating voltage range

System design recommendations

The operating voltage limits are shown in the table from section “Compressor model designation”. The voltage applied to the motor terminals must always be within these table limits. The maximum allowable voltage

% voltage unbalance:

Vavg = Mean voltage of phases 1, 2 and 3 V1-2 = Voltage between phases 1 and 2

unbalance for 3-phase compressors is 2%. Voltage unbalance causes high current draw on one or more phases, which in turn leads to overheating and possible motor damage. Voltage unbalance is given by the formula:

x 100

avg

2 xV

V1-3 = Voltage between phases 1 and 3 V2-3 = Voltage between phases 2 and 3.

Cycle rate limit

There may be no more than 12 starts per hour (6 when a soft start accessory is used). A higher number reduces the service life of the motor-compressor unit. If necessary, use an antishort-cycle timer in the control circuit. A time-out of six minutes is recommended.

Liquid refrigerant control and charge limit

Refrigeration compressors are basically designed as gas compressors. Depending on the compressor design and operating conditions, most compressors can also handle a limited amount of liquid refrigerant. Maneurop® MT and MTZ compressors have a large internal volume and can therefore handle relatively large amounts of liquid refrigerant without major problems. However even when a compressor can handle liquid refrigerant, this will not be favourable to its service life. Liquid refrigerant can dilute the oil, wash oil out of bearings and result in high oil carry over, resulting in loss of

Oﬀ-cycle migration During system standstill and after pressure

equalisation, refrigerant will condense in the coldest part of the system. The compressor can easily be the coldest spot, for example when it is placed outside in low ambient temperatures. After a while, the full system refrigerant charge can condense in the compressor crankcase. A large amount will dissolve in the compressor oil until the oil is completely saturated with refrigerant. If other system components are located at a higher level, this process can be even faster because gravity will assist the liquid refrigerant to ﬂow back to the compressor. When the compressor is started, the pressure in the crankcase decreases rapidly.

The system must be designed in such a way to guarantee a minimum compressor running time in order to provide proper oil return and suﬃcient motor cooling after starting. Note that the oil return rate varies as a function of the system design.

oil from the sump. Good system design can limit the amount of liquid refrigerant in the compressor, which will have a positive eﬀect on the compressor service life.

Liquid refrigerant can enter a compressor in diﬀerent ways, with diﬀerent eﬀects on the compressor.

The liquid migration to the compressor must be avoided by maintaining adequate superheat setting of min. 8-10K.

At lower pressures the oil holds less refrigerant, and as a result part of the refrigerant will violently evaporate from the oil, causing the oil to foam. This process is often called “boiling”.

The negative eﬀects from migration on the compressor are:

• oil dilution by liquid refrigerant

• oil foam, transported by refrigerant gas and discharged into the system, causing loss of oil and in extreme situations risk for oil slugging

• in extreme situations with high system refrigerant charge, liquid slugging could occur (liquid entering the compressor cylinders).

Liquid ﬂoodback during operation

30 AB196386425654en-021502

During normal and stable system operation, refrigerant will leave the evaporator in a superheated condition and enter the compressor as a superheated vapour.

Normal superheat values at compressor suction are 5 to 30 K. However the refrigerant leaving the evaporator can contain an amount of liquid

refrigerant due to diﬀerent reasons:

• wrong dimensioning, wrong setting or malfunction of expansion device

• evaporator fan failure or blocked air ﬁlters.

In these situations, liquid refrigerant will continuously enter the compressor.

Application Guidelines

System design recommendations

Liquid ﬂoodback at change over cycles in reversible heat pumps

Liquid ﬂoodback and zeotropic refrigerants

Crankcase heater

The negative eﬀects from continuous liquid ﬂoodback are:

• permanent oil dilution

In heat pumps, change over from cooling to heating cycles, defrost and low load short cycles may lead to liquid refrigerant ﬂoodback or saturated refrigerant return conditions.

Liquid ﬂoodback in systems working with a zeotropic refrigerant introduces additional negative eﬀects. e.g. R407C, R454C, R455A. A part of the refrigerant leaves the evaporator in liquid phase and this liquid has a diﬀerent composition than the vapour.

A crankcase heater protects against the

oﬀ-cycle migration of refrigerant and proves eﬀective if oil temperature is maintained 10 K above the saturated LP temperature of the refrigerant. Tests must thereby be conducted to ensure that the appro-priate oil temperature is maintained under all ambient conditions. A PTC crankcase heater is recommended on all stand-alone compressors and split systems. PTC crankcase heaters are self-regulating.

Under extreme conditions such as very low ambient temperature a belt type crankcase heater could be used in addition to the PTC heater, although this is not a preferred solution for 1 and 2 cylinder compressors. The belt crankcase heater must be positioned on the compressor shell as close as possible to the oil sump to ensure good heat transfer to the oil.

• in extreme situations with high system refrigerant charge and large amounts of ﬂoodback, liquid slugging could occur.

The negative eﬀects are:

• oil dilution

• in extreme situations with high system refrigerant charge and large amounts of ﬂoodback, liquid slugging could appear.

This new refrigerant composition may result in diﬀerent compressor operating pressures and temperatures.

Belt crankcase heaters are not self-regulating. Control must be applied to energise the belt heater once the compressor has been stopped and then to de-energise it while the compressor is running. The belt heater must be energised 12 hours before restarting the compressor following an extended down period.

If the crankcase heater is not able to maintain the oil temperature at 10 K above the saturated LP temperature of the refrigerant during oﬀ cycles or if repetitive ﬂoodback is present a the Liquid Line Solenoid Valve (LLSV) + pump-down cycle is required, eventually in conjunction with a suction accumulator.

Crankcase heater or PTC crankcase heater always has to be use when refrigerant R454C/ R455A or R513A is used.

Liquid line solenoid valve & pump-down

Suction accumulator

In refrigeration applications, the Liquid Line Solenoid Valve (LLSV) is highly recommended. During the oﬀ-cycle, the LLSV isolates the liquid charge in the condenser side, thus preventing against refrigerant transfer or excessive migration of refrigerant into the compressor. Furthermore, when using a LLSV in conjunction with a pump-down cycle, the quantity of refrigerant in the low-pressure side of the system will be reduced.

A suction accumulator oﬀers considerable protection against refrigerant ﬂoodback at start-up, during operation or after the defrost operation. This device also helps to protect against oﬀ-cycle migration by means of providing additional internal free volume to the low pressure side of the system.

A pump-down cycle design is required when evaporators are ﬁtted with electric defrost heaters.

Liquid line solenoid valve and pump down have to be use with refrigierant R513A.

The suction accumulator must be selected in accordance with the accumulator manufacturer recommendations. As a general rule, Danfoss recommends to size the accumulator for at least 50% of the total system charge. Tests however must be conducted to determine the optimal size.

31AB196386425654en-021502

Application Guidelines

Sound and vibration management

Sound

Running compressors cause sound and vibration. Both phenomena are closely related.

Because Maneurop® compressors are 100% suction gas cooled, and require no body cooling,

they can be insulated. Values for the sound Sound produced by a compressor is transmitted in every direction by the ambient air, the mounting feet, the pipework and the refrigerant in the pipework.

reduction achieved with acoustic hoods are

shown also in the table on the right. For inside

mounted compressors, sound insulation of the

plantroom is an alternative to sound insulation of

the compressor. The easiest way to reduce the sound transmitted through ambient air is to ﬁt a Danfoss acoustic hood accessory.

Sound transmitted by mounting feet, pipework

and refrigerant should be treated the same way

as for vibration. Please refer to the next section.

50Hz

MTZ018- 4 73 74 73 76 75 71* MTZ022-4 74 74 74 74 75 69*

MTZ028-4 75 72 73 73 75 68*

MTZ032-4 73 73 73 73 72 68* MTZ036-4 72 72 72 72 73 67* MTZ040-4 72 73 75 72 73 67 MTZ044-4 80 80 80 80 - 76* MTZ050-4 83 83 83 83 - 79* MTZ056-4 81 81 80 79 - 75* MTZ064-4 80 80 80 80 - 76*

MTZ072-4 79 79 79 79 - 75* MTZ080-4 80 80 79 80 - 76 MTZ100-4 85 84 84 82 - 79*

MT Z125 -4 84 84 84 84 - 81* MTZ144 -4 83 83 83 83 - 80* MTZ160-4 83 84 83 81 - 78

* Provisional Data Sound power level for MTZ As ﬁrst approach, use these ﬁgures with -3 dB(A) reduction on the R404A sound power for MT models applied with R22. ** Acoustic hood accessory can reduce noise level by 6 to 10 dBA (depending on the operating conditions and models).

R404A R448A R449A R452A R454C R513 A

Acoustic hood

accessory**

120Z0575

120Z0576

120Z0577

60Hz

MTZ018- 4 76 75 73 76 72 71* MTZ022-4 77 77 77 77 77 72* MTZ028-4 74 73 74 73 76 68* MTZ032-4 74 74 74 74 73 69* MTZ036-4 73 73 73 73 76 68* MTZ040-4 75 73 74 74 74 69 MTZ044-4 83 81 82 81 - 77* MTZ050-4 86 86 86 86 - 82* MTZ056-4 84 84 84 84 - 76* MTZ064-4 83 83 83 83 - 78* MTZ072-4 82 82 82 82 - 77* MTZ080-4 82 81 80 82 - 77 MTZ100-4 88 86 86 85 - 81* MT Z125 -4 87 87 87 87 - 83* MTZ144 -4 86 86 86 86 - 82* MTZ160-4 86 85 84 84 - 80

R404A R448A R449A R452A

Te=-10°C / TC=45°C / SH=10

R454C/

R513A

R455A

Acoustic hood

accessory**

120Z0575

120Z0576

120Z0577

Vibration The mounting grommets delivered with the

compressor should always be used. They reduce the vibration transmitted by the compressor mounting feet to the base frame.

The base on which the compressor is mounted should be suﬃciently rigid and of adequate mass to ensure the full eﬀectiveness of the mounting grommets.

The compressor should never be directly mounted to the base frame without the grommets, otherwise high vibration transmission would occur and the compressor service life reduced. Suction and discharge lines must have adequate ﬂexibility in 3 planes. Eventually vibration absorbers may be required.

Care must be taken to avoid tubing having resonant frequencies close to those of the compressor frequency.

Vibration is also transmitted by the refrigerant gas. Maneurop® compressors have built in muﬄers to reduce this vibration.

To further reduce vibration an extra muﬄer can be installed.

Note: Maneurop® MT & MTZ compressors have been designed and qualiﬁed for stationary equipment used in A/C and Refrigeration applications.

Danfoss doesn’t warrant these compressors for use in mobile applications, such as trucks, railways, subways, etc...

32 AB196386425654en-021502

Application Guidelines

Installation and service

System cleanliness System contamination is one of the main factors

aﬀecting equipment reliability and compressor service life.

Therefore it is important to ensure system cleanliness when manufacturing a refrigeration system. During the manufacturing process, system contamination can be caused by:

• Brazing and welding oxides

• Filings and particles from removing burrs from pipe-work

• Brazing ﬂux

• Moisture and air.

Only use clean and dehydrated refrigeration grade copper tubes and silver alloy brazing

Compressor handling, mounting and connection to the system

Compressor handling

Maneurop® MT and MTZ compressors are provided with a lifting lug. This lug should always be used to lift the compressor. Once the compressor is installed, the compressor lifting

material. Clean all parts before brazing and always purge nitrogen or CO

through the

pipes during brazing to prevent oxidation. If ﬂux is used, take every precaution to prevent leakage into the piping. Do not drill holes (e.g. for schräder valves) in parts of the installation that are already completed, when ﬁlings and burrs can not be removed. Carefully follow the instructions below regarding brazing, mounting, leak detection, pressure test and moisture removal. All installation and service work shall only be done by qualiﬁed personnel respecting all procedures and using tools (charging systems, tubes, vacuum pump, etc.) dedicated for the refrigerant that will be used.

lug should never be used to lift the complete installation. Keep the compressor in an upright position during handling.

Compressor mounting

Compressor connection to the system

Mount the compressor on a horizontal plane with a maximum slope of 3 degrees. All compressors are supplied with three or four rubber mounting grommets, each complete with metal sleeves and nuts and bolts. Refer to the

These grommets largely attenuate the compressor vibration transmitted to the base frame. The compressor must always be mounted with these grommets. Refer to the table below for torque values.

section “Outline drawings”.

Designation Recommended torque (Nm)

Cable screw of T connector in electrical box screw 10/32 - UNF x 3 3

1" 80

Rotolock valves and solder sleeves

Mounting grommet bolts 1-2 / 4 cylinder 15 / 50

Oil sight glass - 50

Oil equalisation connection 1-2 / 4 cylinder 30 / 45

New compressors have a protective nitrogen holding charge.

1"1/4 90

1"3/4 110

valves to the pipework before the compressor is mounted. When all brazing is ﬁnished and when the total system is ready, the compressor

The suction and discharge caps should only be removed just before connecting the compressor to the installation to avoid air and

caps can be removed and the compressor can be connected to the system with a minimum exposure to ambient air.

moisture entering the compressor.

If this procedure is not possible, the sleeves Whenever possible the compressor must be the last component to be integrated in the system. It

or valves may be brazed to the pipes when

mounted on the compressor. is advisable to braze the solder sleeves or service

33AB196386425654en-021502

Application Guidelines

Installation and service

System pressure test

In this situation nitrogen or CO

must be purged

through the compressor via the schrader valve to prevent air and moisture ingress. Purging must start when the caps are removed and proceeded during the brazing process. When rotolock valves are used on the compressor, they shall be closed immediately after mounting, thus keeping the compressor isolated from atmosphere or from a not yet dehydrated system.

It is recommended that an inert gas such as nitrogen be used for pressure testing. Dry air may also be used but care should be taken since it can form an inﬂammable mixture with the compressor oil. When performing a system pressure test, the maximum allowed pressure for the diﬀerent components should not be exceeded.

For MT/MTZ compressors the maximum test pressures are shown in the table beside.

Note: When the compressor is built into a ”pack” or “rack” conﬁguration which is not installed immediately on its ﬁnal location, a vacuum pulldown and moisture removal must be performed to this pack (rack) as if it were a complete system (see below). The pack must be charged with nitrogen or CO

and open tubes must be blocked

with caps or plugs.

1-2-4 cylinder

compressors

Maximum compressor test pressure, low side

Maximum compressor test pressure, high side

25 bar(g)

30 bar(g)

Do not exceed 30 bar pressure diﬀerence between high pressure side and low pressure side of the compressor because this will open the internal compressor relief valve.

Leak detection

Vacuum pull-down moisture removal

Whenever possible (if valves are present) the compressor must be kept isolated from the system. Perform a leak detection using the ﬁnal refrigerant. Pressurise with nitrogen or another neutral gas and use a leak detector for the applied refrigerant. Any spectrometric detection system using helium can also be applied.

Eventual leaks shall be repaired respecting the instructions written above. It is not recommended to use other gasses such as oxygen, dry air or acetylene as these gasses can form an inﬂammable mixture. Never use CFC

Moisture obstructs the proper functioning of the compressor and the refrigeration system.

Air and moisture reduce service life and increase condensing pressure, and cause excessively high discharge temperatures, which can destroy the

or HCFC refrigerants for leak detection of HFC systems.

Note 1: Leak detection with refrigerant may not be allowed in some countries. Check local regulations.

Note 2: Leak detecting additives shall not be used as they may aﬀect the lubricant properties.

Warranty may be voided if leak detecting additives have been used.

lubricating properties of the oil. Air and moisture also increase the risk of acid formation, giving rise to copper platting. All these phenomena can cause mechanical and electrical compressor failure.

34 AB196386425654en-021502

Application Guidelines

Installation and service

Start-up

To eliminate these factors, a vacuum pulldown according to the following procedure is recommended:

 Whenever possible (if valves are present)

the compressor must be kept isolated from the system.

 After the leak detection, the system must be

pulled-down under a vacuum of 500 microns (0.67 mbar). A two stage vacuum pump shall be used with a capacity appropriate to the system volume. It is recommended to use connection lines with a large diameter and to connect these to the service valves and not to the schrader connection to avoid too high pressure losses.

 When the vacuum level of 500 micron is

reached, the system must be isolated from the vacuum pump. Wait 30 minutes during which the system pressure should not rise. When the pressure rapidly increases, the system is not leak tight.

Before initial start-up or after a prolonged shut down period, energise the crankcase heater (if ﬁtted) 12 hours prior to start-up, or turn on

A new leak detection must be performed and

the vacuum pull-down procedure should be

restarted from step 1. When the pressure slowly

increases, this indicates the presence of moisture.

In this case step 2 and 3 should be repeated.

 Connect the compressor to the system by

opening the valves. Repeat step 2 and 3.

 Break the vacuum with nitrogen or the ﬁnal

refrigerant.

 Repeat step 2 and 3 on the total system.

At commissioning, system moisture content may

be up to 100 ppm. During operation the ﬁlter

drier must reduce this to a level < 20 ppm.

Do not use a megohmmeter or apply power to the compressor while it is under vacuum, as this may cause motor winding damage.

Never run the compressor under vacuum

as it may cause compressor motor burn-out.

power for single phase compressors with trickle circuit.

Refrigerant charging

Oil charge and oil level

Suction gas superheat

Zeotropic and «near-azeotropic» refrigerant mixtures such as R404A, R407A/C/F, R448A, R449A, R454C and R455A must always be charged in the liquid phase. For the initial charge, the compressor must not run and service valves must be closed. Charge refrigerant as close as possible to the nominal system charge before starting the compressor. Then slowly add refrigerant in the liquid phase, on the low pressure side as far away as possible from the running compressor.

The oil charge must be checked before commissioning (1/4 to 3/4 of the oil sight glass). Check the oil level again after a minimum of 2 hours operation at nominal conditions. In most installations the initial compressor oil charge will be suﬃcient. In installations with line runs exceeding 20 m or with many oil traps or an oil separator, additional oil may be required. Normally the quantity of oil added should be no more than 2% of the total refrigerant charge (this percentage does not take into account oil

The optimum suction gas superheat is 10K. A lower superheat value will contribute to better system performance (higher mass ﬂow and more eﬃcient use of evaporator surface). Low super heat values however increase the risk of unwanted liquid ﬂoodback to the compressor.

For very low superheat values an electronically controlled expansion valve is recommended.

The refrigerant charge quantity must be suitable for both winter and summer operation. Refer also to section “Protection against ﬂooded starts and liquid ﬂoodback” for information about refrigerant charge limits.

when a liquid line solenoid valve is used, the vacuum in the low pressure side must be broken before applying power to the system.

contained in accessories such as oil separators or oil traps). If this amount has already been added and the oil level in the compressor keeps decreasing, the oil return in the installation is insuﬃcient. Refer also to section "Piping design".

In installations where slow oil return is likely such as in multiple evaporator or multiple condenser installations, an oil separator is recommended. Refer to the table section “Refrigerant and lubricants” to select the correct oil.

The maximum allowable superheat is about 30 K. Higher values can be accepted but in these cases, tests have to be performed to check that the maximum discharge temperature of 130°C will not be exceeded. Note that high superheat values decrease the compressor application envelope and system performance.

35AB196386425654en-021502

Application Guidelines

Ordering information and packaging

Packaging

Single pack Multipack Industrial pack

Model code 4

MT/MTZ 018

MT/MTZ 022 23 197 278

MT/MTZ 028 25 213 302

MT/MTZ 032 26 221 314

1 cylinder

MT/MTZ 036 27 229 326

Dimensions

(mm)

l: 330 w: 295 h: 385

Gross

weight

(kg)

Nbr

Dimensions

(mm)

l: 1150

w: 800

h: 510

Gross

weight

(kg)

197

Static

stacking

4 12

Nbr

Dimensions

(mm)

l: 1150

w: 800

h: 500

Gross

weight

(kg)

278

Static

stacking

MT/MTZ 040 27 229 326

MT/MTZ 044-050

2 cylinders

MT/MTZ 072-080 43 268 260

MT/MTZ 100

MT/MTZ 125 73 303 399

MT/MTZ 144 76 315 417

4 cylinders

MT/MTZ 160 76 315 417

Single pack: One compressor in a cardboard box.

Multipack: A full pallet of compressors, each individually packed in a cardboard box. Mainly dedicated to wholesalers and Danfoss

Industrial pack: A full pallet of unpacked compressors. Mainly dedicated to OEM customers.

Nbr: Number of compressor in a pack

In some publications this packaging may be indicated as individual packaging. All single pack of 4 cylinder are shipped with a small 1/4 euro pallet (570 x 400 x 117 mm) under the individual box.

distribution centres.

In some publications this packaging may be indicated as ‘Multiple packaging.

l: 395 w: 365

h: 455

l: 470 w: 400 h: 650

l: 1150

w: 800

h: 600

l: 1150

w: 800

h: 800

244

291

4 6

l: 1150

236

w: 800

h: 600

381

l: 1150

w: 800

h: 710

4MT/MTZ 056-064 41 256 248

36 AB196386425654en-021502

Application Guidelines

Ordering information and packaging

MT compressors in industrial pack - R22

Code no.

Compressor

model

MT018 MT18-1VM MT18-3VM MT18-4VM MT18-5VM -

MT022 MT22-1VM MT22-3VM MT22-4VM MT22-5VM MT22-9VM

MT028 MT28-1VM MT28-3VM MT28-4VM MT28-5VM MT28-9VM

MT032 MT 32-1VM MT32-3VM MT32- 4VM MT32-5VM MT32-9VM

MT036 MT36-1VM MT36-3VM MT36-4VM MT36-5VM MT36-9VM

MT040 MT4 0-1VM MT4 0-3VM MT40 -4VM - -

MT044 MT4 4-1VM MT4 4-3VM MT4 4- 4VM - MT4 4-9VM

MT050 MT50-1VM MT50-3VM MT50-4VM - MT50-9VM

MT056 MT56-1VM MT56-3VM MT56-4VM - MT56-9VM

MT064 MT64-1VM MT64-3VM MT64- 4VM - MT64-9VM

MT072 - MT72-3VM MT72-4VM - MT72-9VM

MT080 - MT80-3VM MT80-4VM - MT80-9VM

MT100 - MT100-3VM MT100-4VM - MT100 -9VM

MT 125 - MT125-3VM MT125- 4VM - MT125 -9VM

MT144 - MT144-3VM MT144 -4VM - MT14 4-9VM

1 3 4 5 9

208-230/1/60 200-230/3/60

460/3/60 400/3/50

230/1/50 380/3/60

MT160 - MT160 -3VM MT160-4VM - MT160-9VM

VM = Compressor, threaded oil sight glass, 3/8" oil equalisation connection

37AB196386425654en-021502

Application Guidelines

Ordering information and packaging

MT compressors in single pack - R22

Code no.

Compressor

model

MT018 MT18-1V I MT18-3VI MT18-4VI MT18-5VI - - -

MT022 MT 22-1VI MT22-3VI MT22-4VI MT22-5VI MT22-6VI - MT22-9VI

MT028 MT28 -1VI MT28-3VI MT28-4VI MT28-5VI MT28-6VI - MT28-9VI

MT032 MT32-1VI MT32-3VI MT32-4VI MT32-5VI MT32-6VI - -

MT036 MT36-1VI MT36-3VI MT36-4VI MT36-5VI MT36-6VI - MT36-9VI

MT040 MT40 -1VI MT4 0-3VI MT40 -4V I - MT40 -6VI - -

MT044 - MT44-3V I M T44-4VI - - - M T44-9VI

MT050 MT50 -1VI MT50-3VI MT50-4VI - MT50-6VI - MT50-9VI

MT056 MT56 -1VI MT56-3VI MT56-4VI - MT56-6VI MT56-7VI MT56-9VI

MT064 MT64 -1VI MT64 -3VI MT64-4VI - MT64-6VI - MT64-9VI

1 3 4 5 6 7 9

208-230/1/60 200-230/3/60

460/3/60 400/3/50

230/1/50 230/3/50

575/3/60 500/3/50

380/3/60

MT072 - MT72-3VI MT72-4VI - - - MT72-9VI

MT080 - MT80 -3VI MT80-4VI - MT80-6VI - MT80-9VI

MT100 - MT100-3VI MT100-4VI - MT100-6VI MT100 -7VI MT100 -9VI

MT 125 - MT125-3VI M T125- 4VI - MT125-6VI MT125-7VI M T125 -9V I

MT144 - MT144-3VI MT144- 4VI - - MT144-7VI M T144-9VI

MT160 - MT160-3VI MT160-4VI - MT160 -6V I MT160 -7VI MT160 -9VI

VI = Single compressor, threaded oil sight glass, 3/8" oil equalisation connection

38 AB196386425654en-021502

Application Guidelines

Ordering information and packaging

MTZ compressors in industrial pack R404A / R507A / R134a / R407A / C / F / R448A / R449A / R452A / R454C* / R455A* / R513A

Code no.

Compressor

model

MTZ018 MTZ18 -1VM MTZ18-3VM MT Z18-4VM* MTZ18-5VM* -

MTZ022 MT Z22-1VM MTZ22-3VM MTZ22-4VM* MTZ22-5VM* MTZ22-9VM

MTZ028 MTZ28-1VM MTZ28-3VM MTZ28-4VM* MTZ28-5VM* MTZ28-9VM

MTZ032 MTZ32-1VM MTZ32-3VM MTZ32-4VM* MTZ32-5VM* MTZ32-9VM

MTZ036 MTZ36-1VM MTZ36-3VM MTZ36-4VM* MTZ36-5VM* MTZ36-9VM

MTZ040 MTZ40-1VM MTZ40-3VM MTZ40-4VM* - -

MTZ044 MTZ44 -1VM MTZ44-3VM MTZ44-4VM - MTZ44-9VM

MTZ050 MTZ50 -1VM MTZ50-3VM MTZ50-4VM - MTZ50-9VM

MTZ056 MTZ56-1VM MTZ56-3VM MTZ56-4VM - MTZ56-9VM

MTZ064 MTZ64 -1VM MTZ64-3VM MTZ64-4VM - MTZ64-9VM

MTZ072 - MTZ72-3VM MTZ72-4VM - MTZ72-9VM

MTZ080 - MTZ80-3VM MTZ80-4VM - MTZ80-9VM

MTZ100 - MTZ10 0-3VM MTZ100 -4VM - MTZ100-9VM

MTZ125 - M TZ125 -3VM MTZ125-4VM - MT Z125 -9 VM

MTZ144 - MTZ14 4-3VM MTZ144- 4VM - MTZ144- 9VM

MTZ160 - MTZ160-3VM MTZ160-4VM - MTZ160-9VM

1 3 4 5 9

208-230/1/60 200-230/3/60

460/3/60 400/3/50

230/1/50 380/3/60

VM = Compressor, threaded oil sight glass, 3/8" oil equalisation connection * Qualifed with R454C / R455A.

39AB196386425654en-021502

Application Guidelines

Ordering information and packaging

MTZ compressors in single pack R404A/R507A / R134a / R407A/C/F / R448A/R449A / R452A / R454C* / R455A* / R513A

Code no.

Compressor

model

MTZ018 MTZ18 -1VI MTZ18-3VI MTZ18-4VI* MTZ18-5VI* - - -

MTZ022 MTZ22-1VI MTZ22-3VI MTZ22-4VI* MTZ22-5VI* MTZ22-6VI - MTZ22-9VI

MTZ028 MT Z28 -1VI MTZ28-3VI MTZ28-4VI* MTZ28-5VI* MTZ28-6VI - MTZ28-9VI

MTZ032 MTZ32-1VI MTZ32-3VI MTZ32-4VI* MTZ32-5VI* MTZ32-6VI MTZ32-7 VI MTZ32-9VI

MTZ036 MT Z36-1V I MTZ36-3VI MTZ36-4VI* MTZ36-5VI* MTZ36-6VI MTZ36 -7VI MTZ36-9VI

MTZ040 MTZ40-1VI MTZ40-3VI MTZ40-4VI* - MTZ40-6VI - -

MTZ044 MT Z44-1V I MTZ44-3VI MTZ44-4VI - MTZ44-6VI MTZ4 4-7VI MTZ44-9VI

MTZ050 MT Z50-1V I MTZ50-3VI MTZ50-4VI - MTZ50-6VI MT Z50-7VI MTZ50-9VI

1 3 4 5 6 7 9

208-230/1/60 200-230/3/6 0

460/3/60 400/3/50

230/1/5 0 230/3/50

575/3/60 500/3/50

380/3/60

MTZ056 MT Z56-1V I MTZ56-3VI MTZ56-4VI - MTZ56-6VI MTZ56-7VI MTZ56-9VI

MTZ064 MT Z64-1V I MTZ64-3VI MTZ64-4VI - MTZ64-6VI - MTZ64-9VI

MTZ072 - MTZ72-3VI MTZ72-4VI - MTZ72-6VI - MTZ72-9VI

MTZ080 - MTZ80-3VI MTZ80-4VI - MTZ80-6VI - MTZ80-9VI

MTZ100 - MTZ100-3VI MTZ100-4VI - MTZ100-6VI MTZ10 0-7VI MTZ100-9VI

MTZ125 - MTZ125-3V I MTZ125-4VI - MTZ125- 6VI MTZ12 5-7VI MTZ125-9VI

MTZ144 - MTZ144-3VI MTZ14 4- 4VI - - MT Z144-7VI MTZ14 4- 9VI

MTZ160 - MTZ160-3VI MTZ160-4VI - MTZ160- 6VI MTZ160-7VI MTZ160 -9VI

VI = Single compressor, threaded oil sight glass, 3/8" oil equalisation connection * Qualifed with R454C / R455A.

40 AB196386425654en-021502

Application Guidelines

Current version updates Previous version updates

Updates

• Page 22: MCC value for MTZ56-4 was changed

• Page 32: sound data for MTZ56-4 was changed

• Page 12: Nominal performance data for R454C is added

• Page 15: Operating envelope for R454C is added

• Page 25: Refrigerants and lubricants - R454C with POE oil is added

• Page 27: Refrigerants and lubricants - R454C is added

• Page 29: Pressures for R454C are added

• Page 32: Sound data for R454C is added

• Adding R455A with R454C for all on this page

41AB196386425654en-021502

Danfoss Cooling

Danfoss Inverter Scrolls

is a worldwide manufacturer of compressors and condensing units for refrigeration and HVAC applications. With a wide range of high quality and innovative products we help your company to find the best possible energy efficient solution that respects the environment and reduces total life cycle costs.

We have 40 years of experience within the development of hermetic compressors which has brought us amongst the global leaders in our business, and positioned us as distinct variable speed technology specialists. Today we operate from engineering and manufacturing facilities spanning across three continents.

Danfoss Turbocor Compressors

Danfoss Scrolls

Danfoss Optyma™ Condensing Units

Danfoss Maneurop Reciprocating Compressors

Danfoss Light Commercial Refrigeration

Compressors

Our products can be found in a variety of applications such as rooftops, chillers, residential air conditioners, heatpumps, coldrooms, supermarkets, milk tank cooling and industrial cooling processes.

Danfoss Maneurop reciprocating compressors MT, Maneurop reciprocating compressorsMTZ Application guide

Specifications and Main Features

Frequently Asked Questions

User Manual

General Information

Maneurop® reciprocating compressors

Code numbers (for ordering)

Compressor model designation

Low voltage directive 2014/35/EU

Machinery directive 2014/30/EU

Internal free volume

Nominal performance data for R404A and R22

Nominal performance data for R407C and R134a

Nominal performance data for R407A and R407F

Nominal performance data R448A/R449A and R452A

Nominal performance data R454C, R455A and R513A

Operating envelopes

Discharge temperature protection

Zeotropic refrigerant mixtures

Phase shift

Temperature glide

Dew temperature and Mean temperature for zeotropic mixtures

1 cylinder

Outline drawings

2 cylinders

4 cylinders

Electrical connections and wiring

Single phase electrical characteristics

Nominal capacitor values and relays

Trickle circuit

PSC wiring

CSR wiring

Three phase electrical characteristics

Winding resistance

Soft starters

Voltage application range

IP rating

Refrigerants and lubricants

General information

R407C

R134a

R404A

R507A

R407A

R407F

R448A/R449A

R452A

R454C/R455A

R513A

Hydrocarbons

System design recommendations

Piping design

Operating limits

Operating voltage and cycle rate

Liquid refrigerant control and charge limit

Sound and vibration management

Sound

Vibration The mounting grommets delivered with the

Installation and service

System cleanliness System contamination is one of the main factors

Compressor handling, mounting and connection to the system

System pressure test

Leak detection

Start-up

Ordering information and packaging

Packaging