Famco Danfoss Maneurop MT Manual
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Famco Danfoss Maneurop MT Manual

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Application guidelines
Maneurop® reciprocating
compressors MT / MTZ
50 - 60 Hz - R22 - R417A - R407A/C/F - R134a - R404A / R507
http://danfoss.us.com/

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Summary of Contents for Famco Danfoss Maneurop MT

  • Page 1 Application guidelines Maneurop® reciprocating compressors MT / MTZ 50 - 60 Hz - R22 - R417A - R407A/C/F - R134a - R404A / R507 http://danfoss.us.com/...

  • Page 4: Table Of Contents

    Application guidelines Contents Maneurop® reciprocating compressors ..5 Refrigerants and lubricants ......22 General information ............22 Compressor model designation ...... 6 R22 ...................22 Code numbers (for ordering) ........... 6 Alternatives R22, HFC retrofit .........22 Compressor reference (indicated on the compressor R407C ..................23 nameplate) ................

  • Page 5: Maneurop® Reciprocating Compressors

    Application guidelines Maneurop® reciprocating compressors Maneurop® reciprocating compressors from MTZ compressors can be used in new Danfoss Commercial Compressors are specially installations and also to replace Maneurop® MTE designed for applications with a wide range of compressors in existing installations. operating conditions.

  • Page 6: Compressor Model Designation

    Application guidelines Compressor model designation Code numbers (for ordering) Packaging type Compressor type : single pack M : industrial pack (see ordering section) Polyolester oil Oil equalisation port and threaded sight glass KBtu/h @ ARI.60Hz Motor voltage code 1: 208-230V/1~/60Hz 3: 200-230V/3~/60Hz 4: 380-400 V/3~/50Hz &...

  • Page 7: Specifications

    Application guidelines Specifications Technical specifications Displacement Available motor voltage codes Compressor Cyl. charge weight model cfh at number Code in3/rev 3600 rpm ● ● ● ● MT/MTZ018 1.84 ● ● ● ● ● ● MT/MTZ022 2.33 ● ● ● ● ●...

  • Page 8: Nominal Performance Data For R404A And R22

    Application guidelines Specifications Nominal performance data for R404A and R22 R404A Refrigeration 50 Hz, EN12900 ratings 50 Hz, ARI ratings 60 Hz, ARI ratings To = 14°F, Tc = 113°F, SC = 0 F, SH = 18°F To = 20°F, Tc = 120°F, SC = 0°F, SH = 20°F To = 20°F, Tc = 120°F, SC = 0°F, SH = 20°F Compressor model Cooling...

  • Page 9: Nominal Performance Data For R407C And R134A

    Application guidelines Specifications Nominal performance data for R407C and R134a R407C Air conditioning 50 Hz, EN12900 ratings 50 Hz, ARI ratings 60 Hz, ARI ratings To = +41°F, Tc = 122°F, SC = 0F, SH = 18°F To = +45°F, Tc = 130°F, SC = 15°F, SH = 20°F To = +45°F, Tc = 130°F, SC = 15°F, SH = 20°F Compressor model Cooling...

  • Page 10: Nominal Performance Data For R407A And R407F

    Application guidelines Specifications Nominal performance data for R407A and R407F R407A Refrigeration 50 Hz, EN12900 ratings 50 Hz, ARI ratings 60 Hz, ARI ratings To = 14°F, Tc = 113°F, SC = 0 F, SH = 18°F To = 20°F, Tc = 120°F, SC = 0°F, SH = 20°F To = 20°F, Tc = 120°F, SC = 0°F, SH = 20°F Compressor model Cooling...
  • Page 11 Application guidelines Operating envelopes MT - R22 - R417A S.H. = 20F S.H. = 54F Evaporating temperature (F) MTZ - R407C at DEW point S.H. = 20F S.H. = 54F Evaporating temperature (F) MTZ - R134a MTZ R134a SH 18°F RGT 68°F Evaporating temperature (°F) MTZ - R404A / R507...

  • Page 12: Operating Envelopes

    Application guidelines Operating envelopes MTZ – R407A at Dew Point S.H. = 18F RGT 68F Evaporating temperature (F) MTZ – R407F at Dew Point S.H. = 18F RGT 68F Evaporating temperature (F) Discharge temperature Even when the motor windings are protected The thermostat must be attached to the protection against overheating by the internal motor...

  • Page 13: Zeotropic Refrigerant Mixtures

    Application guidelines Operating envelopes Zeotropic refrigerant Refrigerant mixtures can be either zeotropic or In a zeotropic mixture (like R407C) on the other mixtures azeotropic. hand the composition of vapor and liquid changes during the phase transition. When the An azeotropic mixture (like R502 or R507) effect of this phase transition is very small, the behaves like a pure refrigerant.

  • Page 14: Outline Drawings

    Application guidelines Outline drawings 1 cylinder Ø 8.82” Suction rotolock 1” 1 1/4” LP gauge port 1/4” (schrader) 13.11” 14.02” 10.35” Discharge rotolock oil equalization 1” 3/8” 3.86” 2.68” 2.68” 0.98” 3.23” Mounting hole for PTC crankcase heater 4.29” 4.65” 33°...

  • Page 15: Cylinders

    Application guidelines Outline drawings 2 cylinders Ø 11.34" Suction rotolock 1 3/4" Schrader 1/4" 16.26" Discharge rotolock 1 1/4" 9.92" Oil equalization 10.43" 3/8" Mounting hole for 3.86" PTC crankcase heater 4.61" 2.91" 2.68" 0.79" Threaded oil sight glass 3.23" /3.86"...
  • Page 16 Application guidelines Outline drawings 4 cylinders Ø 13.86" 8.27" 21.18" (2) Schrader 1/4 " 20.39" (1) Suction rotolock 1 3/4" Discharge rotolock 1 1/4" 4.61" Oil equalisation Threaded oil 3/8" sight glass 8.23" 9.17" 6.10" 4.92" 3.74" 3.90" 3.86" 9.13" Mounting hole for PTC crankcase heater 15°...

  • Page 17: Single Phase Electrical Characteristics

    Application guidelines Electrical connections and wiring LRA - Locked Rotor MCC - Maximum Winding resistance (Ω) Single phase electrical Current (A) Continuous Current (A) ( ± 7 % at 68° F) characteristics Motor Code Winding start start MT/MTZ018 1.32 4.16 1.32 3.75 MT/MTZ022...

  • Page 18: Psc Wiring

    Application guidelines Electrical connections and wiring Suggested wiring diagrams 230 V Single phase - PSC wiring with trickle circuit 220 k - 1 W Motor protector A & C Run capacitors Common Start winding (auxiliary) Run winding (main) A µF Thermostat Single phase - CSR wiring 230 V...

  • Page 19: Winding Resistance

    Application guidelines Electrical connections and wiring Three phase electrical characteristics LRA - Locked Rotor MCC - Maximum Winding resistance (Ω) Current (A) Continuous Current (A) ( ± 7 % at 68° F) Motor Code MT/MTZ018 2.29 9.18 3.34 MT/MTZ022 22.5 2.29 11.6* 3.34...
  • Page 20 Application guidelines Electrical connections and wiring Suggested wiring diagram with one shot pump-down cycle and CONTROL CIRCUIT safety lock-out relay 180 s Control device ..........TH Optional short cycle timer (3 min) ..180 s Control relay ............ KA Liquid Solenoid valve ....... LLSV Compressor contactor ........

  • Page 21: Soft Starters

    Application guidelines Electrical connections and wiring Soft starters Starting current of Maneurop® 3-phase For details of the CI-tronic MCI soft starters, compressors can be reduced by using a soft please refer to literature DKACT.PD.C50. starter. Two different versions are available: CI-tronic soft starters type MCI (recommended) For details of the SCR soft start kits, please...

  • Page 22: Refrigerants And Lubricants

    Application guidelines Refrigerants and lubricants General information When choosing a refrigerant, different aspects Additional points could influence the final choice: must be taken into consideration: • Environmental considerations • Legislation (now and in the future) • Standardization of refrigerants and lubricants •...

  • Page 23: R407C

    Application guidelines Refrigerants and lubricants R407C Refrigerant R407C is an HFC refrigerant with specific information about zeotropic refrigerants; similar thermodynamic properties to those of refer to section "zeotropic refrigerant mixtures". R22. R407C must be charged in the liquid phase. R407C has zero ozone depletion potential Always use the Maneurop®...

  • Page 24: R407A

    Application guidelines Refrigerants and lubricants R407A Refrigerant R407A is an HFC with similar in liquid phase, Use of R407A allow to comply thermodynamic properties to those of R404A, with the new Fgaz regulation from 2015. R407A R407A is a zeotropic refrigerant and has a GWP is stated at 2107 [CO2=1,0].
  • Page 25 Application guidelines System design recommendations Piping design Oil in a refrigeration circuit is required to lubricate system, the amount of oil returning to the moving parts in the compressor. During normal compressor is lower than the amount of oil system operation small oil quantities will leaving the compressor, the compressor will continuously leave the compressor, with the become starved of oil and the condenser,...
  • Page 26 Application guidelines System design recommendations In most installations the initial compressor oil installations with the risk of slow oil return such Oil charge and oil separator charge will be sufficient. In installations with line as in multiple evaporator or multiple condenser runs exceeding 66 ft, or with many oil traps or an installations, an oil separator is recommended.
  • Page 27 Application guidelines System design recommendations Operating voltage and cycle The operating voltage limits are shown in the compressors is 2%. Voltage unbalance causes rate table on “Voltage application range” paragraph. high current draw on one or more phases, which The voltage applied to the motor terminals must in turn leads to overheating and possible motor Operating voltage range always be within these table limits.
  • Page 28 Application guidelines System design recommendations • evaporator fan failure or blocked air filters. • permanent oil dilution In these situations, liquid refrigerant will • in extreme situations with high system continuously enter the compressor. refrigerant charge and large amounts of The negative effects from continuous liquid floodback, liquid slugging could occur.
  • Page 29 Application guidelines Sound and vibration management Sound Running compressors cause sound and vibration. Because Maneurop® compressors are 100% Both phenomena are closely related. suction gas cooled, and require no body cooling, they can be insulated. Values for the Sound produced by a compressor is transmitted sound reduction achieved with acoustic hoods in every direction by the ambient air, the are shown also in the table below.
  • Page 30 Application guidelines Installation and service System cleanliness System contamination is one of the main factors material. Clean all parts before brazing and affecting equipment reliability and compressor always purge nitrogen or CO through the service life. pipes during brazing to prevent oxidation. If flux is used, take every precaution to prevent Therefore it is important to ensure system leakage into the piping.
  • Page 31 Application guidelines Installation and service In this situation nitrogen or CO must be purged down and moisture removal must be performed through the compressor via the schrader valve to to this pack (rack) as if it were a complete system prevent air and moisture ingress.
  • Page 32 Application guidelines Installation and service To eliminate these factors, a vacuum pull- restarted from step 1. When the pressure slowly down according to the following procedure is increases, this indicates the presence of moisture. recommended: In this case step 2 and 3 should be repeated. ...
  • Page 33 Application guidelines Installation and service The optimum suction gas superheat is 18°F. A The maximum allowable superheat is about Suction gas superheat lower superheat value will contribute to better 54°F. Higher values can be accepted but in these system performance (higher mass flow and cases, tests have to be performed to check that more efficient use of evaporator surface).
  • Page 34 Application guidelines Ordering information and packaging Packaging Single pack Multipack Industrial pack Model Gross Gross Gross Dimensions Dimensions Static Dimensions Static weight weight weight (in) (in) stacking (in) stacking (lbs) (lbs) (lbs) MT/MTZ 018 50.7 MT/MTZ 022 50.7 l: 13.0 l: 45.3 l: 45.3 MT/MTZ 028...
  • Page 35 Application guidelines Ordering information and packaging MT compressors in industrial pack Code no. Compressor model 460/3/60 208-230/1/60 200-230/3/60 230/1/50 380/3/60 400/3/50 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 MT32-1VM MT32-3VM MT32-4VM MT32-5VM...
  • Page 36 Application guidelines Ordering information and packaging R404A / R507 / R134a / R407A/C/F MTZ compressors in industrial pack Code no. Compressor model 460/3/60 208-230/1/60 200-230/3/60 230/1/50 380/3/60 400/3/50 MTZ018 MTZ18-1VM MTZ18-3VM MTZ18-4VM MTZ18-5VM MTZ022 MTZ22-1VM MTZ22-3VM MTZ22-4VM MTZ22-5VM MTZ22-9VM MTZ028 MTZ28-1VM MTZ28-3VM MTZ28-4VM...
  • Page 37 Application guidelines Ordering information and packaging R404A / R507 / R134a / R407A/C/F MTZ compressors in single pack Code no. Compressor model 460/3/60 575/3/60 208-230/1/60 200-230/3/60 230/1/50 230/3/50 380/3/60 400/3/50 500/3/50 MTZ018 MTZ18-1VI MTZ18-3VI MTZ18-4VI MTZ18-5VI MTZ022 MTZ22-1VI MTZ22-3VI MTZ22-4VI MTZ22-5VI MTZ22-6VI MTZ22-9VI...
  • Page 38 Application guidelines Updates Previous Version Current Version • Page 7: Approvals & certificates, Pressure • Page 7: Updated Approvals & certificates, Pressure equipment directive 2014/68/EU, Low equipment directive 97/23/EC, Low voltage directive 2006/95/EC & Machine directive voltage directive 2014/35/EU & Machinery directive 2014/30/EU 2006/42/EC •...
  • Page 40 Danfoss Commercial Compressors 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.
  • Page 41 MAKING MODERN LIVING POSSIBLE MPZ - Refrigeration 1 cyl. range Medium temperature 50 - 60 Hz R404A / R507A SELECTION & APPLICATION GUIDELINES...
  • Page 44 CONTENTS MPZ RECIPROCATING COMPRESSORS ............................COMPRESSOR MODEL DESIGNATION ..............................Compressor reference ........................................SPECIFICATIONS ................................................ Technical specifi cations ........................................Approvals & certifi cates ........................................Nominal performance ........................................OPERATING ENVELOPE ..........................................OUTLINE DRAWINGS p 10 ..........................................ELECTRICAL CONNECTIONS AND WIRING p 12 ..........................
  • Page 45 MPZ RECIPROCATING COMPRESSORS series from Danfoss Further, its new shell housing with Commercial Compressors is a range of solder connections is designed to be hermetic reciprocating compressors as compact as possible. for medium / high evaporating temperature applications. The compressors can be operated at a return gas temperature (suction gas The MPZ is engineered as a true temperature) of 20°C on most of its...
  • Page 46 COMPRESSOR MODEL DESIGNATION Compressor reference A 4 L B 2 A Medium temperature Evolution index compressor Further options POE lubricant 2: standard & R404A / R507A refrigerant 3: oil sight glass Displacement cm³ Piping / connections Certification index B: brazed / solder Motor voltage code Protection type 1: 208-230 V / 1 ph / 60Hz...
  • Page 47 SPECIFICATIONS Technical specifi cations Cyl. Displacement number charge weight * Compressor model /h at m³/h at /rev 2900 rpm 3500 rpm MPZ038 25.2 MPZ048 10.1 25.2 MPZ054 11.3 25.2 MPZ061 10.6 12.7 25.75 MPZ068 11.8 14.3 25.75 * Net weight apply only on code 4 Approvals Danfoss MPZ compressors comply Certifi...
  • Page 48 SPECIFICATIONS Nominal performance data - R404A 50 Hz To = -10°C, Tc = 45°C, RGT= 20°C, SC = 0 K To = -10°C, Tc = 45 °C , SH = 10 K, SC = 0 K To = 5°C, Tc = 50°C , RGT = 20°C, SC = 0 K Compressor model Cooling Power...
  • Page 49 OPERATING ENVELOPE SH10K RGT 20°C MPZ - R404A / R507A Evaporating temperature...
  • Page 50 OUTLINE DRAWINGS Side view, 3 phase models Suction tube ODF 3/4” Process tube 346.1 ODF 3/8” 348.2 Discharge ODF 1/2” 20.1 91.7 18.7 152.3 108.5 77.3 56.3 Oil sight glass optional Side view, single phase models Suction tube ODF 3/4” Process tube ODF 3/8”...
  • Page 51 OUTLINE DRAWINGS 234.3 Top view, all models 190.5 87.3 (x2) 190.5 242.2 103.3 (x2) 19.1 13.4 34.7 14.8 34.3 14.8 Silent block Bolt H M8 x 40 Grommet compression not included Lock washer (around 1 mm) Flat washer Ø 31.75...
  • Page 52 ELECTRICAL CONNECTIONS AND WIRING Three phase electrical LRA - Locked Rotor MCC Maximum Continuous Winding resistance (Ω) Current (A) Current (A) ( ± 7 % at 20° C) characteristics Motor Code MPZ038 71.6 29.2 11.5 1.15 MPZ048 71.6 29.2 12.2 1.15 MPZ054 71.6...
  • Page 53 ELECTRICAL CONNECTIONS AND WIRING Three phase L3 L2 Control circuit Suggested wiring diagram with safety lock-out relay Control device ..................... Optional short cycle timer (3 min) 5 pts 180 s ..Control relay ....................Compressor contactor ..............Safety lock out relay ................
  • Page 54 ELECTRICAL CONNECTIONS AND WIRING Soft starters Starting current of Danfoss MPZ 3- For details of the Danfoss CI-tronic™ phase compressors can be reduced by MCI soft starters, please refer to using a Danfoss electronic soft starter. literature DKACT.PD.C50. The starting current can be reduced by up to 50% depending on the Use of a soft starter requires that the compressor model.

  • Page 55: System Design Recommendations

    SYSTEM DESIGN RECOMMENDATIONS Piping design Oil in a refrigeration circuit is required poorly designed system, the amount to lubricate moving parts in the of oil returning to the compressor is compressor. During normal system lower than the amount of oil leaving operation small quantities of oil will compressor, compressor...

  • Page 56: Operating Limits

    SYSTEM DESIGN RECOMMENDATIONS The pipe sizes selected for specifi c It is recommended that the suction systems diff er from these lines are insulated to limit suction gas recommended sizes. superheat. Discharge line When the condenser is mounted the compressor are required to prevent above the compressor, a loop above liquid draining from the condenser into the condenser and a U-trap close to...

  • Page 57: Operating Voltage And Cycle Rate

    SYSTEM DESIGN RECOMMENDATIONS Low ambient temperature ambient temperatures, problems. A non-return valve in the the condensing temperature and discharge line is required and special operation condensing pressure in air cooled care should be taken when designing condensers will decrease. the discharge line.) •...

  • Page 58: Liquid Refrigerant Control And Charge Limit

    SYSTEM DESIGN RECOMMENDATIONS Liquid refrigerant control Refrigeration compressors are basi- frigerant can dilute the oil, wash oil out and charge limits cally designed as gas compressors. of bearings and result in high oil carry Depending on the compressor de- over, resulting in loss of oil from the sign and operating conditions, most sump.
  • Page 59 SYSTEM DESIGN RECOMMENDATIONS Liquid fl oodback at change I n heat pumps, change over from The negative eff ects are: cooling to heating cycles, defrost and • oil dilution over cycles in reversible low load short cycles may lead to liquid •...

  • Page 60: Sound And Vibration Management

    SOUND AND VIBRATION MANAGEMENT Sound Running compressors vibrate and Danfoss MPZ compressors are 100% generate refrigerant gas pulsations. suction gas cooled, and require These vibrations, when coupled to no body cooling, thus they can ambient air, are heard as sound. Those be insulated.

  • Page 61: Installation And Service

    INSTALLATION AND SERVICE System cleanliness System contamination is one of the purge nitrogen or CO through the main factors aff ecting equipment pipes during brazing to prevent reliability and compressor service life. oxidation. If fl ux is used, take every precaution to prevent the leakage of Therefore important...

  • Page 62: System Pressure Test

    INSTALLATION AND SERVICE System pressure test It is recommended that an inert gas taken since it can form an infl ammable such as nitrogen be used for pressure mixture with the compressor oil. When testing. Always use the appropriate performing a system pressure test, the pressure regulator with gas cylinders.
  • Page 63 INSTALLATION AND SERVICE 3. When the vacuum level of 500 5. Break the vacuum with nitrogen or micron is reached, the system must the fi nal refrigerant. be isolated from the vacuum pump. Wait 30 minutes during which the 6. Repeat step 2 and 3 on the total system pressure should not rise.

  • Page 64: Ordering Information And Packaging

    ORDERING INFORMATION AND PACKAGING Ordering - Code no. Motor voltage code Single pack Compressor Design model Nominal voltage 460/3/60 208-230/1/60 200-230/3/60 230/1/50 400/3/50 Standard 120F0093 120F0118 120F0047 120F0143 MPZ038 Sight Glass 120F0098 120F0123 120F0052 120F0148 Standard 120F0094 120F0119 120F0048 120F0144 MPZ048 Sight Glass 120F0099...
  • Page 68 The Danfoss product range for the refrigeration and air conditioning industry Danfoss Refrigeration & Air Conditioning is We focus on our core business of making a worldwide manufacturer with a leading quality products, components and systems position in industrial, commercial and that enhance performance and reduce supermarket refrigeration as well as air total life cycle costs –...
  • Page 69 MAKING MODERN LIVING POSSIBLE Maneurop® reciprocating compressors MT/MTZ 50 - 60 Hz R-22, R-407C, R-134a, R-404A / R-507A SELECTION & APPLICATION GUIDELINES...
  • Page 70 CONTENTS MANEUROP® RECIPROCATING COMPRESSORS ............p 3 COMPRESSOR MODEL DESIGNATION ..................p 4 Code numbers ............................p 4 Compressor reference ........................p 4 Versions ................................. p 4 SPECIFICATIONS ............................p 5 Technical specifications ........................p 5 Approvals &...

  • Page 71: Maneurop® Reciprocating Compressors

    MANEUROP® RECIPROCATING COMPRESSORS Maneurop® reciprocating compres- The compressor design allows for the sors from Danfoss Commercial Com- motor to be 100% suction-gas cooled. pressors are specially designed for The positive benefits of internal motor applications with a wide range of protection, high efficiency circular valve operating conditions.

  • Page 72: Compressor Model Designation

    COMPRESSOR MODEL DESIGNATION Code numbers (for ordering) Available code numbers are listed on pages 32-33 Compressor reference (indicated on the compressor nameplate) Versions S version (standard) VE version (optional) Oil equalization Oil equalization Models Oil sight glass Oil sight glass connection connection MT/MTZ018-040 (1 cyl.)

  • Page 73: Specifications

    SPECIFICATIONS Technical specifications Displacement Available motor voltage codes charge weight Compressor Cyl. model number cfh at Code /rev 3600 rpm ● ● ● ● ○ MT/MTZ018 1.84 ● ● ● ● ● ● MT/MTZ022 2.33 ● ● ● ● ● ●...

  • Page 74: Nominal Performance For R-404A And R-22

    SPECIFICATIONS Nominal performance data for R-404A and R-22 R-404A Refrigeration 50 Hz, EN12900 ratings 50 Hz, ARI ratings 60 Hz, ARI ratings To = 14°F, Tc = 113°F, SC = 0 F, SH = 18°F To = 20°F, Tc = 120°F, SC = 0°F, SH = 20°F To = 20°F, Tc = 120°F, SC = 0°F, SH = 20°F Compressor Cooling...

  • Page 75: Nominal Performance For R-407C And R-134A

    SPECIFICATIONS Nominal performance data for R-407C and R-134a R-407C Air Conditioning 50 Hz, EN12900 ratings 50 Hz, ARI ratings 60 Hz, ARI ratings To = +45°F, Tc = 130°F, SC = 15°F, SH = 20°F To = +45°F, Tc = 130°F, SC = 15°F, SH = 20°F To = +45°F, Tc = 130°F, SC = 15°F, SH = 20°F Compressor Cooling...

  • Page 76: Operating Envelopes

    OPERATING ENVELOPES R-22 S.H. = 20F S.H. = 54F Evaporating temperature (F) R-407C at DEW point S.H. = 20F S.H. = 54F Evaporating temperature (F) R-134a S.H. = 20F S.H. = 54F Evaporating temperature (F) R-404A/R-507A S.H. = 20F S.H. = 54F Evaporating temperature (F)
  • Page 77 OPERATING ENVELOPES Zeotropic refrigerant Refrigerant mixtures can be either zeo- An azeotropic mixture, on the other tropic or azeotropic. hand, (like R-502 or R-507A) behaves mixtures In a zeotropic mixture (like R-407C) like a pure refrigerant. During a phase on the other hand the composition of transition (from vapor to liquid or from vapor and liquid changes during the liquid to vapor) the composition of va-...

  • Page 78: Outline Drawings

    OUTLINE DRAWINGS 3.15 1 cylinder Terminal box Mounting hole for PTC crankcase heater 4.84 Spade connectors Oil sight glas 1/4” AMP-AWE (VE - models only) Ground M4-12 Knock-out Ø 0.83” IP rating: 55 (with cable gland) Ø 0.83” 55° 2.68 Ø...

  • Page 79: Cylinders

    OUTLINE DRAWINGS 3.15 2 cylinders 3.78 Terminal box for model (1) Spade connectors 1/4” AMP-AWE Mounting hole for PTC crankcase heater Ground M4-12 Knock-out Ø 0.83” IP rating: 55 (with cable gland) Ø 0.83” 37° Terminal box for model (2) 4.92 5.71 Screw...

  • Page 80: Cylinders

    OUTLINE DRAWINGS 3.78 4 cylinders Terminal box 9.69 Mounting hole for Screw Oil equalization PTC crankcase heater 10-32 UNF x 9/5” VE models only Ground M4-12 Knock-out Ø 1.14” IP rating: 54 (with cable gland) Ø 1.14” 8.22 - 8.25 Ø...

  • Page 81: Electrical Connections And Wiring

    ELECTRICAL CONNECTIONS AND WIRING MCC - Maximum LRA - Locked Rotor Winding resistance (Ω) Continuous Current Single phase electrical Current (A) ( ± 7 % at 68° F) characteristics Motor Code Winding start start MT/MTZ018 1.36 4.82 1.80 4.70 MT/MTZ022 49.3 1.25 2.49...

  • Page 82: Suggested Wiring Diagrams

    ELECTRICAL CONNECTIONS AND WIRING Suggested wiring diagrams Single phase PSC wiring with trickle circuit Motor protector A & C Run capacitors Common Start winding (auxiliary) Run winding (main) Single phase CSR wiring with trickle circuit Motor protector A & C Run capacitors Start capacitor Common...

  • Page 83: Three Phase Electrical Characteristics

    ELECTRICAL CONNECTIONS AND WIRING Three phase electrical characteristics LRA - Locked Rotor MCC - Maximum Winding resistance (Ω) Current (A) Continuous Current (A) ( ± 7 % at 68° F) Motor Code MT/MTZ018 2.49 10.24 3.38 MT/MTZ022 22.5 2.49 10.24 3.38 6.58 MT/MTZ028...

  • Page 84: Soft Starters

    ELECTRICAL CONNECTIONS AND WIRING Wiring diagram without pump-down cycle Control device ..................... Optional short cycle timer (3 min) 5 pts 180 s ..Control relay ....................Compressor contactor ..............Safety lock out relay ................H.P. switch ......................Fused disconnect ..................Fuses ..........................

  • Page 85: Refrigerants And Lubricants

    REFRIGERANTS AND LUBRICANTS General information When choosing a refrigerant, various final choice: factors must be taken into considera- • Environmental considerations tion: • Standardization of refrigerants and lu- • Legislation (now and in the future) bricants • Safety • Refrigerant cost •...
  • Page 86 REFRIGERANTS AND LUBRICANTS R-134a Refrigerant R-134a is an HFC refrige- choice. R-134a is a pure refrigerant and rant with thermodynamic properties has no temperature glide. For R-134a comparable to those of the CFC refri- applications always use the Maneurop® gerant R-12. R-134a has zero ozone MTZ compressor.

  • Page 87: System Design Recommendations

    SYSTEM DESIGN RECOMMENDATIONS Piping design Oil in a refrigeration circuit is required to designed system, the amount of oil re- lubricate moving parts in the compres- turning to the compressor is lower than sor. During normal system operation the amount of oil leaving the compres- small quantities of oil will continually sor, the compressor will become star- leave the compressor, with the dischar-...

  • Page 88: Operating Limits

    SYSTEM DESIGN RECOMMENDATIONS The suction rotolock valves that can be tems may differ from these recommen- ordered from Danfoss as accessories ded sizes. are designed for average pipe sizes, and It is recommended that the suction selected for systems running at nominal lines be insulated to limit suction gas conditions.

  • Page 89: Operating Voltage & Cycle Rate

    SYSTEM DESIGN RECOMMENDATIONS Low pressure A low pressure safety switch is recom- at too lower suction pressures. mended to avoid compressor operation R-22 R-407C R-134a R-404A / R-507A Test pressure low side psig Working pressure range high side psig 158 - 402 181 - 426 115 - 328 191 - 402...

  • Page 90: Liquid Refrigerant Control & Charge Limits

    SYSTEM DESIGN RECOMMENDATIONS Liquid refrigerant control Refrigeration compressors are basically rable to a long service life. Liquid refri- designed as gas compressors. Depen- gerant can dilute the oil, wash oil out and charge limits ding on the compressor design and of bearings and result in high oil carry operating conditions, most compres- over, resulting in loss of oil from the...
  • Page 91 SYSTEM DESIGN RECOMMENDATIONS Crankcase heater A crankcase heater protects against oil sump to ensure good heat transfer to the off-cycle migration of refrigerant the oil. and proves effective if oil temperature Belt crankcase heaters are not self-re- is maintained 18 F above the satura- gulating.

  • Page 92: Sound And Vibration Management

    SOUND AND VIBRATION MANAGEMENT Sound Running compressors cause sound and cooling, they can be insulated. Values vibration. These phenomena are closely for the sound reduction achieved with related. acoustic hoods are shown also in the Sound produced by a compressor is table below.

  • Page 93: Vibration

    SOUND AND VIBRATION MANAGEMENT Vibration The mounting grommets delivered Care must be taken to avoid tubing ha- with the compressor should always be ving frequencies resonant close to the used. They reduce vibration transmitted compressor frequency. by the compressor mounting feet to the Vibration is also transmitted by the re- base frame.

  • Page 94: Installation And Service

    INSTALLATION AND SERVICE System cleanliness System contamination is one of the gen or CO through the pipes during main factors affecting equipment relia- brazing to prevent oxidation. If flux is bility and compressor service life. used, take every precaution to prevent It is, therefore, important to ensure sys- it entering the piping.

  • Page 95: System Pressure Test

    INSTALLATION AND SERVICE system is ready, the compressor caps immediately after mounting, thus kee- can be removed and the compressor ping the compressor isolated from the connected to the system with a mini- atmosphere or from a system not yet mum exposure to ambient air.

  • Page 96: Vacuum Pull-Down Moisture Removal

    INSTALLATION AND SERVICE Note 2: Leak detecting additives shall flammable mixture. Never use CFC or HCFC refrigerants for leak detection in not be used as they may affect the HFC systems. lubricant properties. Note 1: Leak detection with refrigerant Warranty may be voided if leak detec- may not be allowed in some countries.
  • Page 97 INSTALLATION AND SERVICE Oil charge and oil level The oil charge must be checked before oil contained in accessories such as oil commissioning (1/4 to 3/4 of the oil si- separators or oil traps). If oil has alrea- ght glass). Check the oil level again after dy been added, and the oil level in the a minimum of 2 hours operation at no- compressor keeps decreasing, the oil...

  • Page 98: Accessories And Spareparts

    ACCESSORIES AND SPAREPARTS The tables below show an extract of the sors. For an exhaustive list please refer available accessories and spare parts to Accessories & Spare parts catalogue, Rotolock accessories for Maneurop® reciprocating compres- ref. FRCC.EK.002.A1.02 Type Code no. Description Application Packaging Pack size...

  • Page 99: 3-Phase Soft Start Equipment

    ACCESSORIES AND SPAREPARTS 3-phase soft start equipment Type Code no. Description Application Packaging Pack size SCR01 7702003 Soft start kit with statoric resistors, prewired box, SCR01 MT/MTZ044-081 Single pack SCR03 7705001 Soft start kit with statoric resistors, prewired box, SCR03 MT/MTZ100-160 Single pack MCI 15 C...

  • Page 100: Ordering Information And Packaging

    ORDERING INFORMATION AND PACKAGING Ordering information Maneurop® MT & MTZ reciprocating The code numbers ending in "M" in compressors can be ordered from Dan- the tables represent compressors in in- foss Commercial Compressors in either dustrial pack. For ordering single units, industrial packs (also called multiple please replace the last letter "M"...
  • Page 101 ORDERING INFORMATION AND PACKAGING MTZ compressors in industrial pack R-404A / R-507A / R-134a / R-407C (multiple packaging) Code no. Compressor Design model 460/3/60 575/3/60 208-230/1/60 200-230/3/60 230/1/50 230/3/50 380/3/60 400/3/50 500/3/50 MTZ18-1M MTZ18-3M MTZ18-4M MTZ18-5M MTZ018 MTZ18-1VM MTZ18-3VM MTZ18-4VM MTZ18-5VM MTZ18-6VM MTZ22-1M...

  • Page 102: Ordering

    ORDERING INFORMATION AND PACKAGING Packaging Single pack Multipack Industrial pack Gross Gross Model Dimensions Dimensions Static Dimensions Static weight weight weight stacking stacking 1 cylinder MT/MTZ018 MT/MTZ022 MT/MTZ028 l: 13.0 l: 39.4 l: 47.2 w: 11.6 w: 23.6 w: 31.5 MT/MTZ032 h: 15.2 h: 20.0...
  • Page 104 The Danfoss product range for the refrigeration and air conditioning industry Danfoss Refrigeration & Air Conditioning is We focus on our core business of making a worldwide manufacturer with a leading quality products, components and systems position in industrial, commercial and that enhance performance and reduce supermarket refrigeration as well as air total life cycle costs –...
  • Page 105 Application guidelines Maneurop® reciprocating compressors NTZ R404A - R507 - 60 Hz http://danfoss.us.com/...
  • Page 107 Application guidelines Content Maneurop® reciprocating compressors ....................5 Features ....................................5 Specifications ............................6 Technical specifications and nominal ratings ......................6 Versions ....................................6 Compressor reference ...............................6 Dimensions ............................7 1 cylinder ....................................7 2 cylinders ....................................8 4 cylinders ....................................9 Electrical connections and wiring ..................... 10 Voltage application range .............................
  • Page 108 Application guidelines Content Sound and vibration management ....................21 Sound ....................................21 Vibration ....................................21 Installation and service ........................22 System cleanliness ................................22 Compressor handling, mounting and connection ....................22 Compressor connection to the system ........................23 System pressure test ............................... 23 Leak detection ...................................

  • Page 109: Maneurop® Reciprocating Compressors

    Application guidelines Maneurop® reciprocating compressors Features The Maneurop® NTZ series from Danfoss A liquid injection system is not required. All Commercial Compressors is a range of hermetic components are of high quality and precision to reciprocating compressors for low evaporating assure a long product life.

  • Page 110: Specifications

    Application guidelines Specifications Technical specifications and nominal ratings Displacement Nominal ratings* Number 50 Hz 60 Hz Compressor Swept volume 50 Hz 60 Hz charge weight model /rev 2900 rpm 3500 rpm Cooling capacity Cooling capacity cylinders Btu/h Btu/h/w Btu/h Btu/h/w NTZ048 2.93 4084...

  • Page 111: Dimensions

    Application guidelines Dimensions 1 cylinder ø 8.8 Suction rotolock 1"1/4 Schrader 1/4" 13.8 (NTZ068 -1) 13.1 10.4 Discharge rotolock 1" Oil equalisation 3/8" 3.85 2.68 2.68 0.98 3.22 PTC crankcase heater 4.29 4.65 All dimensions in inch 33° 35° Threaded oil sight glass Silent block HM8-40...

  • Page 112: Cylinders

    Application guidelines Dimensions 2 cylinders ø 11.3 Suction rotolock Schrader 1"3/4 1/4" 16.3 Discharge rotolock 1"1/4 9.91 10.43 Oil equalisation 3/8" 3.85 4.61 crankcase heater 2.67 1.28 3.22 Threaded oil 3.86 sight glass 6.13 2.37 (1) NTZ096 - 108 - 136 except NTZ136-1 (2) NTZ136-1 All dimensions in inch 6.73...
  • Page 113 Application guidelines Dimensions 4 cylinders Ø 13.9 8.27 20.4 Schrader 1/4 " Suction rotolock 1"3/4 Discharge rotolock 1"1/4 4.61 Oil equalisation Threaded oil 3/8" sight glass 8.23 6.10 3.74 3.86 9.13 Mounting hole for PTC crankcase heater All dimensions in inch Silent block HM12-50 15°...

  • Page 114: Electrical Connections And Wiring

    Application guidelines Electrical connections and wiring Voltage application range Motor voltage code Nominal voltage Voltage application range 208-230 V / 1 / 60 Hz 187 – 253 V 200-230 V / 3 / 60 Hz 180 – 253 V 380-400 V / 3 / 50 Hz 340 –...

  • Page 115: Single Phase Psc Wiring With Trickle Circuit

    Application guidelines Electrical connections and wiring Single phase PSC wiring with trickle circuit Motor protector A & C Run capacitors Common Start winding (auxiliary) Run winding (main) Single phase CSR wiring with trickle circuit Motor protector A & C Run capacitors Start capacitor Common Start winding (auxiliary)

  • Page 116: Three Phase Electrical Characteristics

    Application guidelines Electrical connections and wiring Three phase electrical characteristics Winding resistance (Ω) Compressor (Locked Rotor Amp) A (Maximum Continuous Current) A (between phases +/- 7% at 77°F) model NTZ048 10.1 2.80 11.55 13.10 NTZ068 48.5 14.8 1.58 7.11 9.70 NTZ096 20.4 10.1...

  • Page 117: Wiring Diagram Without Pump-Down Cycle

    Application guidelines Electrical connections and wiring Wiring diagram without CONTROL CIRCUIT pump-down cycle 180 s Control device Optional short cycle timer (3 min) 180 s Control relay Compressor contactor Safety lock out relay H.P. switch Fused disconnect Fuses Compressor motor 85 52 019 - A Discharge gas thermostat IP rating...

  • Page 118: Approval And Certifications

    Application guidelines Approval and certifications Approvals and certificates Maneurop® NTZ compressors comply with the Certificates are listed on the product datasheets: following approvals and certificates. http://www.danfoss.com/odsg All models (European Directive) Models with motor voltage code 1, 3 & 4, (Underwriters Laboratories) NTZ048 - 9 &...

  • Page 119: Operating Conditions

    Application guidelines Operating conditions Refrigerants and Maneurop® NTZ compressors are designed and Only approved refrigerants and lubricants as lubricants optimised for refrigerants R404A and R507. listed in below table may be used. The use of hydrocarbons is not authorised in NTZ compressors.

  • Page 120: Operating Limits

    Application guidelines Operating conditions Operating limits High pressure A high-pressure (HP) safety switch is required to circuit or associated with a manual reset device to shut down the compressor should the discharge prevent cycling around the high pressure limit. pressure exceed the values shown in the table below.

  • Page 121: System Design Recommendations

    Application guidelines System design recommendations Maneurop® NTZ compressors have been does not warrant the compressors for use on designed and qualified for stationary equipment mobile applications such as trucks, railways, using standard alternating power supply. Danfoss subways, ships etc. Piping design Oil in a refrigeration circuit is required to Lubricant getting trapped in the evaporator or lubricate moving parts in the compressor.

  • Page 122: Oil Charge And Oil Separator

    Application guidelines System design recommendations Oil charge and oil In most installations the initial compressor oil installations with the risk of slow oil return such separator charge will be sufficient. In installations with line as in multiple evaporator or multiple condenser runs exceeding 66 ft, or with many oil traps or an installations, an oil separator is recommended.

  • Page 123: Cycle Rate Limit

    Application guidelines System design recommendations Cycle rate limit No more than 12 starts per hour (6 when a soft start-up as well as proper oil return from the start accessory is used) are allowed. A higher system to the compressor. number would reduce the service life of the A 5-minute delay between two successive motor-compressor unit.

  • Page 124: Crankcase Heater

    Application guidelines System design recommendations Crankcase heater A crankcase heater protects against the off-cycle The below illustrated mounting positions are migration of refrigerant and proves effective if recommended: oil temperature is maintained 18°F above the saturated LP temperature of the refrigerant. Tests Belt crankcase heaters are not self-regulating.

  • Page 125: Sound

    Application guidelines Sound and vibration management Sound Compressors in operation are one of the sources is to fit an acoustic hood accessory. Because of sound and vibration in a refrigeration system. Maneurop® NTZ compressors are 100% suction Both phenomena are closely related. gas cooled and require no external cooling they can be insulated or enclosed in a sound proofing Sound produced by a compressor is transmitted...

  • Page 126: Installation And Service

    Application guidelines Installation and service System cleanliness System contamination is one of the main factors pipes during brazing to prevent oxidation. If that affects equipment reliability and compressor flux is used, take every precaution to prevent service life. Therefore it is important to take care the leakage of flux into the piping.

  • Page 127: Compressor Connection To The System

    Application guidelines Installation and service Compressor connection New compressors have a protective nitrogen the pipes when mounted on the compressor. In to the system holding charge. Only remove the suction and this situation nitrogen or CO must be purged discharge plugs just before connecting the through the compressor via the schrader valve compressor to the installation, so as to prevent to prevent air and moisture ingress.

  • Page 128: Leak Detection

    Application guidelines Installation and service Leak detection Whenever possible the compressor must be kept these gasses can form an inflammable mixture isolated from the system during leak detection by with the compressor oil. Never use CFC or HCFC closing the suction and discharge valves. Use a refrigerants for leak detection of HFC systems.

  • Page 129: Refrigerant Charging

    Application guidelines Installation and service Refrigerant charging It is recommended that charging be done to the operation. R404A is a near-azeotropic mixture high side of the system. Charge refrigerant as and must be charged in the liquid phase. R507 is close as possible to the nominal system charge an azeotropic mixture and can be charged either before starting the compressor.

  • Page 130: Ordering Information And Packaging

    Application guidelines Ordering information and packaging Code numbers NTZ compressors in single pack (2) (for ordering) Motor voltage code Compressor model 460/3/60 208-230/1/60 200-230/3/60 230/1/50 380/3/60 400/3/50 NTZ048 120F0072 120F0026 120F0001 120F0087 120F0168 NTZ068 120F0073 120F0027 120F0002 120F0088 120F0169 NTZ096 120F0074 120F0028 120F0003...

  • Page 131: Accessories

    Application guidelines Accessories Rotolock service valves and valve sets (without gasket) Pack Type Code n° Description Application Packaging size 8168027 Rotolock valve, V01 (1" Rotolock, 3/8" ODF) Models with 1" rotolock connection Multipack 8168031 Rotolock valve, V06 (1" Rotolock, 1/2" ODF) Models with 1"...
  • Page 132 Application guidelines Accessories Solder sleeves Pack Type Code n° Description Application Packaging size 8153010 Solder sleeve, P01 (1" Rotolock, 3/8" ODF) Models with 1" rotolock connection Multipack 8153007 Solder sleeve, P06 (1" Rotolock, 1/2" ODF) Models with 1" rotolock connection Multipack 8153011 Solder sleeve, P09 (1"1/4 Rotolock, 5/8"...
  • Page 133 Application guidelines Accessories PTC heaters Pack Type Code n° Description Application Packaging size PTC27W 120Z0459 PTC heater 27W All models Multipack PTC27W 120Z0460 PTC heater 27W All models Industry pack Single phase PSC starting kits Pack Type Code n° Description Application Packaging size...
  • Page 134 Application guidelines Accessories Acoustic hoods Pack Type Code n° Description Application Packaging size 1 cyl 120Z0575 Acoustic hood for 1 cyl NTZ048-068 Single pack 2 cyl 120Z0576 Acoustic hood for 2 cyl NTZ096-136 Single pack 4 cyl 120Z0577 Acoustic hood for 4 cyl NTZ215-271 Single pack Mounting kits...
  • Page 135 Application guidelines Updates Previous version Current version • Page 6: Technical specifications and nominal • Page 6: Updated NTZ068 Nominal ratings in ratings Technical specifications and nominal ratings • Page 10: Voltage application range • Page 10: Updated Nominal voltage & Voltage application range for Motor voltage code 5.
  • Page 136 Danfoss Commercial Compressors 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.
  • Page 137 Application guidelines Danfoss scrolls, H-Series Residential and light commercial 50 - 60 Hz - R22 - R407C - R410A http://cc.danfoss.com...
  • Page 140 Contents GENERAL INFORMATION ....................6 PRODUCT INFORMATION ....................7 Features ..........................7 Compressor model designation ..................8 Nomenclature ..................................8 Technical specifications ...................... 9 50-60 Hz data ..................................9 Dimensions ........................12 HRM032-034-038-040-042 / HRP034-038-040-042 / HRH029-031-032-034-036-038 / HRM-045-047 / HRP-045-047 / HRH039-040 ......................12 HRM048-051-054-058-060 / HLM068-072-075-078-081 / HRP048-051-054-058-060 / HLP068-072-075-078-081 / HRH041-044-049-051-054-056 / HLH061-068 / HLJ072-075-083 ....
  • Page 141 Contents Manage off cycle migration ....................33 Requirement ..................................33 Evaluate the risk ................................33 Test, criteria and solutions ............................. 34 Provide power supply and electrical protection ............. 35 Wiring information ................................35 Control logic ........................36 Safety control logic requirements ..........................36 Cycle rate limit requirements ............................

  • Page 142: General Information

    General Information Danfoss scroll compressors are designed and You are strongly advise to follow these manufactured according to the state of the instructions. For any deviation from the art and to valid European and US regulations. guidelines, please contact Danfoss Technical Particular emphasis has been placed on Support.

  • Page 143: Features

    Features Danfoss H-series scroll compressors are and process control were first priority. The result manufactured using the most advanced is a highly efficient product with the highest machining, assembly, and process control reliability obtainable, and a low sound level. techniques. In design of both the compressor The H-series compressors can be black or blue and the factory, very high standards of reliability depending on the production site.

  • Page 144: Compressor Model Designation

    Compressor model designation Danfoss H-series scroll compressor for R22/ nomenclature which equals the technical R407C/R410A is available as single compressor reference as shown on the compressor and can be assembled in tandem combinations. nameplate. Code numbers for ordering are listed The example below presents the compressor section “Ordering information and packaging”.

  • Page 145: Technical Specifications

    Technical specifications 50-60 Hz data Nominal tons Nominal cooling Power Swept E.E.R Displacement Oil charge Model 60 Hz capacity input volume weight Btu/h Btu/h/W /rev HRM025T4 5950 20 300 1.86 10.9 34.1 1.06 HRM034U4 8 350 28 490 2.66 3.14 10.7 46.2 8.03...
  • Page 146 Technical specifications 50-60 Hz data Nominal tons Nominal cooling Power Swept E.E.R Displacement Oil charge Model 60 Hz capacity input volume weight Btu/h Btu/h/W /rev HRP025T4 5730 19 570 1.86 3.08 10.5 34.1 5.90 1.06 HRP034T4 7 940 27 080 2.68 2.96 10.1...
  • Page 147 Technical specifications 50-60 Hz data Nominal tons Nominal cooling Power Swept E.E.R Displacement Oil charge Model 60 Hz capacity input volume weight Btu/h Btu/h/W /rev HRH029U4 7 120 24 310 2.43 10.0 2.93 27.8 4.84 1.06 HRH034U4 8 500 29 000 10.0 2.93 33.3...

  • Page 148: Dimensions

    Dimensions HRM032-034-038-040-042 / HRP034-038-040-042 / HRH029-031-032-034-036-038 / HRM-045-047 / HRP-045-047 / HRH039-040 238.8 190.25 - 190.75 4 x Ø 19.0 - 20.0 95.25 95.25 128.5 109.7 238.8 190.25 - 190.50 111.3 14° 34° 31° 69.4 - 71.4 45° 163.5 - 165.5 Discharge line 12.75-12.85 (0.502-0.506 inch)

  • Page 149: Hlp068-072-075-078-081 / Hrh041-044-049-051-054-056 / Hlh061-068 / Hlj072-075-083

    Dimensions HRM048-051-054-058-060 / HLM068-072-075-078-081 / HRP048-051-054-058-060 / HLP068-072-075-078-081 / HRH041-044-049-051-054-056 / HLH061-068 / HLJ072-075-083 190.25 - 190.75 190.25-190.75 4 x Ø 19.0 - 20.0 4 x Ø 19.0 - 20.0 95.25 95.25 95.25 95.25 138.2 118.3 133.6 119.2 190.25 - 190.75 190.25-190.75 (1) 121 (1) 121...
  • Page 150 Dimensions HCM/HCP 094-109-120 231.9 190.25 - 190.75 4 x Ø 19.0 - 20.0 95.25 95.25 231.9 125.1 190.25 - 190.75 122.9 14° 31° 34° 78.5 - 80.5 45° 183.14 - 185.14 Discharge line 22.31 - 22.48 (0.878-0.885) Suction line 28.65 - 28.83 (1.128-1.135) 92.0 - 94.0 (1) 490.1...

  • Page 151: Hcj090-105-120

    Dimensions HCJ090-105-120 190.25 - 190.75 4 x Ø 19.0 - 20.0 95.25 95.25 125.1 190.25-190.75 122.9 14° 31° 34° 45° 78.5 - 80.5 183.14 - 185.14 Discharge line 22.31 - 22.48 (0.878-0.885) Suction line 28.65 - 28.83 (1.128-1.135) 92.0 - 94.0 491.8 518.5 358.2...

  • Page 152: Hcj091-106-121

    Dimensions HCJ091-106-121 190.25-190.75 4 x Ø 19.0 - 20.0 95.25 95.25 125.1 190.25-190.75 122.9 14° 34° 31° 78.5 - 80.5 45° 183.14-185.14 Discharge line 22.31 - 22.48 Suction line 28.65 - 28.83 92.0 - 94.0 535.5 508.3 375.2 311.4 10.9 HCJ091-106-121 All dimensions in mm Terminal box...

  • Page 153: Hlh061-Hlj072-Hlj083

    Dimensions HLH061-HLJ072-HLJ083 190.25-190.75 4 x Ø 19.0 - 20.0 95.25 133.5 95.25 119.2 190.25-190.75 31° 34° 78.5 - 80.5 45° 73° 182.54-184.54 Discharge line Suction line 12.75 - 12.85 22.30 - 22.48 92.0 - 94.0 435.9 402.7 202.4 85.3 56.7 10.9 Terminal box Mounting grommet...
  • Page 154 Dimensions Schrader ports for HP/LP switches and/or access ports Oil equalization line Crankcase heaters Tandems to be acheived by assembly of individual compressors, if they are the feature 8 compressor. Tandem model Composition L (mm) H(mm) Wmm) Outline drawing number TLJ082 HRH041 + HRH041 8556080...

  • Page 155: Electrical Data, Connections And Wiring

    Electrical data, connections and wiring Motor voltage Danfoss scroll compressors H Series are available in four different motor voltages as listed below. Motor voltage code Code 1 Code 2 Code 4 Code 5 Code 7 Code 9 Nominal voltage 200-220 V - 3 ph 380-415V - 3 ph 220-240 V -1 ph 500 V - 3 ph...

  • Page 156: Ip Rating

    Electrical data, connections and wiring IP rating The compressor terminal box IP rating according to CEI 529 is IP22 for all models. IP ratings is only valid when correctly sized cable glands of the IP rating is applied. • First numeral, level of protection against contact and foreign objects protection against object size over 12.5 mm (fingers of similar) •...

  • Page 157: Electrical Connections

    Electrical data, connections and wiring Electrical connections Danfoss scroll compressors are designed to the defined nominal voltage. PSC wiring is operate without any assistance if running within sufficient (see below). PSC wiring The start winding (C-S) of the motor remains in circuit through a permanent (run) capacitor.

  • Page 158: Pressure Equipment Directive 97/23/Ec

    Approvals and certifications Approvals and certificates Danfoss scroll H-series compressors comply with Certificates are listed on the product datasheets: the following approvals and certificates. http://www.danfoss.com/odsg CE 0062 or CE 0038 All models (European Directive) All models (Underwriters Laboratories) Other approvals / certificates Contact Danfoss Pressure equipment Products...

  • Page 159: Design Piping

    Design piping General requirements Proper piping practices should be employed to: 2. Avoid condensed liquid refrigerant from draining back to the compressor when stopped 1. Ensure adequate oil return, even under (discharge piping upper loop). For validation minimum load conditions (refrigerant speed, tests see section “Manage off cycle migration”.

  • Page 160: Tandem Requirements

    Design piping Tandem requirements Danfoss scroll compressor H series tandem use The discharge line as no impact on oil balancing static oil balancing principle to equalize oil level and is shown with tees, to indicate that both left between the compressors by gravity. This is and right side discharge header are possible ensured by a precise suction and oil equalization piping designs.

  • Page 161: Design Compressor Mounting

    Design compressor mounting General requirements Compressors used in single applications must be and the manifold assembly must be mounted mounted with flexible grommets. with flexible grommets onto frame. Compressors used in parallel application must be During operation, the maximum inclination from mounted with rigid mounting spacers onto rails the vertical plane must not exceed 3 degrees.

  • Page 162: Manage Sound And Vibration

    Manage sound and vibration Typical sounds and vibrations in systems can be The following sections focus on the causes and broken down into the following three categories: methods of mitigation for each of the above • Sound radiation (through air) sources.

  • Page 163: Gas Pulsation

    Sound and vibration management Mechanical vibrations Vibration isolation constitutes the primary are held to a strict minimum. In addition, it is method for controlling structural vibration. extremely important that the frame supporting H-series scroll compressors are designed to the mounted compressor be of sufficient mass produce minimal vibration during operations.

  • Page 164: Manage Operating Envelope

    Manage operating envelope Requirement The operating envelope for H-series scroll Steady-state operation envelope is valid for a compressors is given in the figures below and suction superheat within 5K to 30K range. guarantees reliable operations of the compressor for steady-state and transient operation. R22, R407C Model variation T SH 11K...
  • Page 165 Manage operating envelope R22, R410A Model variation U SH 11K Evaporating temperature (°C) R407C R410A Working pressure range high side bar (g) 10.9 - 27.7 10.5 - 29.1 15.8 - 44.5 Working pressure range low side bar (g) 1.4 - 6.9 1.1 - 6.4 1.9 - 10.8 Maximum high pressure safety switch setting*...

  • Page 166: Evaluate The Risk

    Manage operating envelope Evaluate the risk We consider two types of operating envelope management: Basic: Advanced: • HP and LP switch • HP and LP sensor • MOP (Max Operating Pressure) ensured by expansion • Operating envelope limits (permanent and transient) device integrated into control logic •...

  • Page 167: Manage Superheat

    Manage superheat During normal operation, refrigerant enters Liquid flood back can cause oil dilution and, in the compressor as a superheated vapor. Liquid extreme situations lead to liquid slugging that flood back occurs when a part of the refrigerant can damage compression parts. entering the compressor is still in liquid state.

  • Page 168: Test, Criteria And Solutions

    Manage superheat Test, criteria and solutions Test N° Purpose Test condition Pass criteria Solutions Liquid flood back testing must be carried out under expansion valve threshold operating conditions: a high pressure ratio and minimum evaporator load (A). 1. Check expansion valve selection Oil superheat>10K and setting.

  • Page 169: Manage Off Cycle Migration

    Manage off cycle migration Off -cycle refrigerant migration happens: When the compressor starts running again, the • when the compressor is located at the coldest refrigerant diluted in the oil generates poor part of the installation, refrigerant vapor lubrication conditions. In extreme situations, condenses in the compressor.

  • Page 170: Test, Criteria And Solutions

    Manage off cycle migration Test, criteria and solutions Test N° Purpose Test condition Pass criteria Solutions Check that When all compressors are idle: Energize CCH*. there is no • Check in liquid line sight glass that 1. Check bulb position, tightness of Stabilize the non-running system at migration of there is no liquid refrigerant transfer...

  • Page 171: Provide Power Supply And Electrical Protection

    Provide power supply and electrical protection Wiring information Requirements: • HP safety switch and DGT must be wired in the • An additional external overload protection is safety chain. Other safety devices such as LP can still advisable for either alarm or manual reset. be either hardware or software managed.

  • Page 172: Control Logic

    Control logic Safety control logic requirements Tripping conditions Re-start conditions Value Time Value Time HP switch Manual reset See Pressure settings table from section “Manage LP safety switch operating envelope” Immediate, no delay. Conditions back to normal. Maximum 5 auto reset during No by- pass Switch closed again a period of 12 hours, then...

  • Page 173: Defrost Logic Recommendations

    Control logic Defrost logic In reversible systems, the defrost logic can be 2. Transferring liquid refrigerant from one recommendations worked out to limit liquid flood back effect by: exchanger to the other one thanks to pressures. 1. Running full load during defrost to share liquid refrigerant between all compressors.

  • Page 174: Reduce Moisture In The System

    Reduce moisture in the system • can destroy the lubricating properties of the oil. Excessive air and moisture • can increase condensing pressure and cause All these phenomena can reduce service life excessively high discharge temperatures. and cause mechanical and electrical compressor •...

  • Page 175: Assembly Line Procedure

    Assembly line procedure Compressor storage Store the compressor not exposed to rain, between -35°C and 52°C when charged with corrosive or flammable atmosphere between refrigerant. -35°C and 70°C when charged with nitrogen and Compressor holding • Remove the suction plug first and the discharge Each compressor is shipped with a nominal dry charge nitrogen holding charge between 0.3 and 0.7 bar...

  • Page 176: Piping Assembly

    Assembly line procedure Piping assembly Good practices for piping assembly is a pre-requisite to ensure compressor service life. System cleanliness Circuit contamination possible cause: Requirement: Brazing and welding oxides During brazing, flow nitrogen through the system Filings and particles from the removal of burrs in Remove any particles and burrs generated by tube pipe-work cutting and hole drilling...

  • Page 177: Refrigerant Charging

    Assembly line procedure Vacuum evacuation and Requirements: Recommendations: moisture removal • Never use the compressor to evacuate the • Energized heaters improve moisture removal. system. • Alternate vacuum phases and break vacuum • Connect a vacuum pump to both the LP and HP with Nitrogen to improve moisture removal.

  • Page 178: Commissioning

    Commissioning Preliminary check Check electrical power supply: • Voltage and voltage unbalance within tolerance: • Phase order: For H-series compressors equipped For more details refer to section “Motor voltage”. with an electronic module, reverse rotation will be automatically detected. For more details refer to section “Motor protection”.

  • Page 179: Dismantle And Disposal

    Dismantle and disposal Danfoss recommends that compressors and compressor oil should be recycled by a suitable company at its site. FRCC.PC.012.A7.02...

  • Page 180: Ordering Information And Packaging

    Ordering information and packaging Packaging Single pack Compressors are packed individually in a cardboard box. They can be ordered in any quantity. Minimum ordering quantity = 1. As far as possible, Danfoss will ship the boxes on full pallets of 8,9, or 16 compressors according below table.

  • Page 181: Compressor Code Numbers

    Ordering information and packaging Compressor code Danfoss H-series scroll compressors can be Please use the code numbers from below tables numbers ordered in either industrial packs or in single for ordering. packs. R22 Single pack Code no. Model Compressors Connections Features Variation 120U0921...

  • Page 182: R22 Industrial Pack

    Ordering information and packaging R22 Industrial pack Code no. Model Compressors Connections Features Variation 120U0918 120U2026 120U0993 HRM032 120U0953 120U2364 120U2119 120U2084 HRM034 120U0923 120U1078 120U0998 120U2229 120U2369 120U2134 120U2089 HRM038 120U0928 120U1088 120U1008 120U0963 120U1053 120U2374 120U2139 120U2459 HRM040 120U0933 120U1098 120U1018...

  • Page 183: R407C Single Pack

    Ordering information and packaging R407C Single pack Code no. Model Compressors Connections Features Variation HRP034 120U2024 120U2019 HRP038 120U1086 120U1006 120U0961 HRP040 120U1096 120U1016 120U1929 HRP042 120U1106 120U1026 120U2157 HRP045 120U1116 120U1036 120U0976 HRP047 120U1126 120U1046 120U0986 HRP048 120U1661 HRP048 120U1656 HRP051 120U1501...

  • Page 184: R407C Industrial Pack

    Ordering information and packaging R407C Industrial pack Code no. Model Compressors Connections Features Variation HRP034 120U2021 120U2016 HRP038 120U1083 120U1003 120U0958 HRP040 120U1093 120U1013 120U1926 HRP042 120U1103 120U1023 120U2154 HRP045 120U1113 120U1033 120U0973 HRP047 120U1123 120U1043 120U0983 HRP048 120U1658 HRP048 120U1653 HRP051 120U1498...

  • Page 185: R410A Single Pack

    Ordering information and packaging R410A Single pack Code no. Model Compressors Connections Features Variation HRH029 120U2277 120U2282 120U2287 HRH031 120U1136 120U1251 120U1191 120U1166 120U1216 HRH032 120U1141 120U1256 120U1196 120U1171 120U1221 HRH034 120U1146 120U1261 120U2446 120U2650 120U1226 120U2654 HRH036 120U1151 120U1266 120U1201 120U1176 120U1231...

  • Page 186: R410A Industrial Pack

    Ordering information and packaging R410A Industrial pack Code no. Model Compressors Connections Features Variation HRH029 120U2274 120U2279 120U2284 HRH031 120U1133 120U1248 120U1188 120U1163 120U1213 HRH032 120U1138 120U1253 120U1193 120U1168 120U1218 HRH034 120U1143 120U1258 120U2443 120U2647 120U1223 120U2651 HRH036 120U1148 120U1263 120U1198 120U1173 120U1228...
  • Page 187 Ordering information and packaging Model Industrial Model Voltage code Connections Features Single pack variation pack HRM025 121L2781 121L2784 HRM034 121L2364 121L2367 HRM034 121L2119 121L2122 HRM038 121L2089 121L2092 HRM042 121L2124 121L2127 HRM051 121L1673 121L1676 HRM054 121L2749 121L2752 HRM060 121L1718 121L1721 HRM060 121L2757 121L2760 HRM060...

  • Page 188: Run Capacitors For Psc Wiring

    Spare parts & accessories Run capacitors for PSC wiring Pack Type Code n° Description Application Packaging size PSC wiring Run Capacitor 70 µF, motor voltage HRM032-034-038-040-042 - HRP034-038-040-042 70 µF 120Z0051 Multipack code 5 - 220-240V / 1 / 50Hz - HRH031-032-036 60 µF 120Z0050 PSC wiring Run Capacitor 60 µF, code 5...

  • Page 189: Rotolock Adaptor

    Spare parts & accessories Rotolock adaptor Application Pack Type Code n° Description Packaging (see above group) size 120Z0366 Rotolock adaptor (1-1/4" ~ 3/4") Group 1 suction Multipack 120Z0367 Rotolock adaptor (1-1/4" ~ 7/8") Group 2 & 3 suction Multipack 120Z0364 Rotolock adaptor (1-3/4" ~ 1-1/8") Group 4 suction Multipack 120Z0365 Rotolock adaptor (1"...

  • Page 190: Lubricant

    Spare parts & accessories Lubricant Type Code No Description Application Packaging Pack Size 120Z5034 PVE (0.95 liter can) 320HV (FVC68D) HRH, HLH, HLJ, HCJ, HRP, HLP & HCP Multipack Mounting hardware Type Code No Description Application Packaging Pack Size 120Z5017 Mounting grommet All models Single pack...
  • Page 191 Updates Previous version Current version • Updated Layout • Page 6: Added General information • Page 9-10: Technical specifications • Page 9-11: Updated Technical specifications • Page 18: Added Tandem dimensions • Page 17: Motor voltage • Page 19: Updated Motor voltage with Voltage unbalance formula •...
  • Page 194 Danfoss Commercial Compressors 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.
  • Page 195 MAKING MODERN LIVING POSSIBLE Application guidelines Danfoss Scroll for Refrigeration MLM / MLZ 50 - 60 Hz - R404A - R507 - R134a - R22 http://cc.danfoss.com...
  • Page 197 Application Guidelines Contents Features ............. 4 System design recommendations ..27 General ...................27 Scroll compression principle ....5 Essential piping design considerations ......27 The scroll compression process........5 Refrigerant charge limit ..........28 Off-cycle migration ............28 Compressor model designation ....6 Liquid flood back ..............30 Nomenclature ................

  • Page 198: Features

    Application Guidelines Features With its unique scroll design and manufacturing scroll compressors designed for commercial process flexibility, the new Danfoss MLZ/ refrigeration applications. These compressors MLM refrigeration compressor offers a highly are engineered for refrigeration, and offer efficient solution for demanding refrigeration cooling capacity from 3.4 to 21 kW (2 to 10 HP) applications.

  • Page 199: The Scroll Compression Process

    Application Guidelines Scroll compression principle The scroll compression The entire scroll compression process is pocket moves towards the centre of the scroll process illustrated below. The centre of the orbiting scroll set, with corresponding increase in gas pressure. traces a circular path around the centre of the Maximum compression is achieved, as the pocket fixed scroll.

  • Page 200: Compressor Model Designation

    Application Guidelines Compressor model designation Nomenclature Type Size Motor Features M LZ T 4 L Application Other features M: medium temperature refrigeration Oil equali- LP gauge Oil sight Gas equalisa- sation drain port glass tion port Threaded None Schrader None None Family, Refrigerant &...

  • Page 201: 50 Hz

    Application Guidelines Technical specifications 50 Hz Efficiency * Nominal Power Net weight Swept volume Displacement Oil charge cooling capacity * input * (with oil) Model Btu/h Btu/h/W cm3/rev m3/h Litres MLZ015 3300 11300 1.75 1.89 6.45 33.8 MLZ019 4500 15400 2.16 2.06 7.03...

  • Page 202: 60 Hz

    Application Guidelines Technical specifications 60 Hz Efficiency * Nominal Power Net weight Swept volume Displacement Oil charge cooling capacity * input * (with oil) Model Btu/h Btu/h/W cm3/rev m3/h Litres MLZ015 4100 14000 1.94 6.62 33.8 MLZ019 5500 18800 2.58 2.11 7.20 43.5...

  • Page 203: Technical Specifications

    Application Guidelines Technical specifications R404A / R507 Model 2300 2900 3500 4300 5200 6200 7400 8700 MLZ015T4 1900 2400 3000 3700 4400 5300 6300 7400 1800 2400 2900 3600 4300 5100 6000 3000 3800 4600 5600 6700 8000 9500 11200 MLZ019T4 2600 3300...

  • Page 204: R22

    Application Guidelines Technical specifications Model 2600 3200 3800 4600 5500 6600 7800 MLZ/MLM015T4 2800 3500 4200 5100 6000 7100 3800 4500 5400 6400 3400 4200 5000 6000 7100 8500 10000 MLZ/MLM019T4 3800 4600 5500 6500 7800 9200 4900 5800 6900 8300 3600 4400...

  • Page 205: R134A

    Application Guidelines Technical specifications R134a Model 2400 3000 3700 4500 5400 MLZ/MLM015T4 2700 3300 4100 4900 5900 2400 3000 3600 4400 5200 3100 3800 4700 5800 7000 MLZ/MLM019T4 3500 4300 5200 6300 7600 3100 3800 4700 5600 6700 3300 4100 5000 6100 7400...

  • Page 206: Dimensions

    Application Guidelines Dimensions MLZ/MLM015-019-021-026 Brazed Rotolock 4x Ø19.0 4 x Ø 19 111.5 suction line 31° 34° 31° 34° 73° 73° 45° 45°±2° Ø163.5-165.5 Ø163.5 - 165.5 Discharge port1/2” Discharge line Suction port 3/4” ODF Ø1.00”-14UN(2A) Suction line Ø1”1/4-12UN(2A) 72.1-75.1 72.1-75.1 Oil sight glass Oil sight glass...
  • Page 207 Application Guidelines Dimensions MLZ/MLM030-038-042-045-048 Brazed Rotolock 4x Ø19 4 x Ø 19 95.25 121.2 suction line 120.3 34° 31° 34° 31° 45°±2° 45° 73° Ø182.54-184.54 Ø182.54 - 184.54 Discharge port Discharge line 1/2” ODF 1) Ø1” - 14UN(2A) 3/4” ODF 2) Ø1”1/4 - 12UN (2A) Suction port 7/8”...
  • Page 208 Application Guidelines Dimensions MLZ/MLM058-066-076 Brazed Rotolock 4 x Ø 19 4xØ19 124.9 suction line 119.27 73° 34° 31° 45° 31° 73° 45°±2° Ø185 Ø185 Discharge port 7/8” ODF Discharge line Suction port 1”1/8 ODF Suction line Ø1”1/4 - 12UN(2A) Ø1”3/4 - 12UN(2A) Oil sight glass 1) 517 1) 490...

  • Page 209: Oil Sight Glass

    Application Guidelines Dimensions Oil sight glass MLZ / MLM scroll compressors come equipped with a threaded oil sight glass with 1”1/8 - 18 UNEF connection. It can be used for a visual Oil sight glass check of the oil amount and condition or it may Schrader valve be replaced by an accessory oil management and cap...

  • Page 210: Electrical Data, Connections And Wiring

    Application Guidelines Electrical data, connections and wiring Motor voltage MLZ/MLM scroll compressors are available in 6 different motor voltages. Motor voltage Motor voltage Motor voltage Motor voltage Motor voltage Motor voltage code 1 code 2 code 4 code 5 code 7 code 9 200-220 V - 3 ph 380-400 V - 3 ph...
  • Page 211 Application Guidelines Electrical data, connections and wiring Three phase electrical Max Oper A Winding resistance (Ohm) characteristics Compressor model T1-T3 T1-T2 T2-T3 MLZ/MLM015T2 14.5 1.23 1.67 1.67 MLZ/MLM019T2 17.5 13.3 0.87 1.18 1.18 MLZ/MLM021T2 17.5 13.6 0.87 1.18 1.18 MLZ/MLM026T2 22.0 16.6 0.87...

  • Page 212: Lra (Locked Rotor Amp)

    Application Guidelines Electrical data, connections and wiring LRA (Locked Rotor Amp) LRA is the higher average current as measured The LRA value can be used as a rough estimation on a mechanically blocked compressor tested for the starting current. However in most cases, under nominal voltage.

  • Page 213: Nominal Capacitor Value And Relays

    Application Guidelines Electrical data, connections and wiring remains at high temperature and thus at high internal protector to open and would cause even resistance as long as power is connected to the further delay until the overload is reset. compressor. When the compressor is switched off, the PTC cools down to its initial low resistance The following PTC types are recommended for and becomes available to support the next...

  • Page 214: Three Phase

    Application Guidelines Electrical data, connections and wiring Three phase CONTROL CIRCUIT Suggested wiring diagram with "one shot" pump down cycle and safety lock-out relay 180 s Control device ..........TH Optional short cycle timer (3 min) ..180 s Control relay ............ KA Liquid Line Solenoid valve ......LLSV Compressor contactor ........

  • Page 215: Approvals And Certificates

    Application Guidelines Approvals and certifications Approvals and MLZ scroll compressors comply with the Certificates are listed on the product datasheets: certificates following approvals and certificates. http://www.danfoss.com/odsg CE 0062 or CE 0038 All MLZ models (European Directive) Models with motor code 1, 2 & 4 except when using (Underwriters Laboratories) PTCSCR system Other approvals / certificates...

  • Page 216: Refrigerant And Lubricants

    Application Guidelines Operating conditions • Refrigerant and lubricants The scroll compressor application range is influenced by several parameters which need to • Motor supply be monitored for a safe and reliable operation. • Compressor ambient temperature These parameters and the main •...
  • Page 217 Application Guidelines Operating conditions Motor supply MLZ / MLM scroll compressors can be operated ranges. In case of risk of under-voltage operation, at nominal voltages as indicated in table section special attention must be paid to current draw “Motor voltage”. Under-voltage and over-voltage and start assist for single-phase compressors may operation is allowed within the indicated voltage be required.
  • Page 218 Application Guidelines Operating conditions MLZ - R134a SH 11K Evaporating temperature (°C) MLZ / MLM - R22 SH: 11K RGT: 25°C Evaporating temperature (°C) FRCC.PC.015.A5.02...

  • Page 219: Maximum Discharge Gas Temperature

    Application Guidelines Operating conditions Maximum discharge gas The discharge temperature depends mainly on thermostat attached to the discharge line 15 cm temperature the combination of evaporating temperature, (6 inches) from the compressor shell. Maximum condensing temperature and suction gas discharge gas temperature must not exceed superheat.

  • Page 220: High And Low Pressure Protection

    Application Guidelines Operating conditions High and low pressure R404A R134a protection Working pressure range high side bar (g) 7.03 - 27.9 7.20 - 27.7 4.91 - 22.1 Working pressure range low side bar (g) 0.71 - 6.4 1.04 - 7.2 0.64 - 4.0 Maximum high pressure safety switch setting bar (g)

  • Page 221: General

    Application Guidelines System design recommendations General Successful application of scroll compressors beyond the limits given in this manual. Poor is dependent on careful selection of the performance, reduced reliability, or both may compressor for the application. If the compressor result. is not correct for the system, it will operate Essential piping design Proper piping practices should be employed to...

  • Page 222: Refrigerant Charge Limit

    Application Guidelines System design recommendations Refrigerant charge limit MLZ/MLM scroll compressors can tolerate liquid compressor is limited. In this respect, follow the refrigerant up to a certain extend without major guidelines given in the section: “essential piping problems. However, excessive liquid refrigerant in design recommendations”...
  • Page 223 Application Guidelines System design recommendations Due to the Danfoss scroll compressors inherent ability to handle liquid refrigerant, crankcase Provide separate electrical supply for the heaters are not required when the system charge heaters so that they remain energized even when does not exceed the recommended maximum the machine is out of service (eg.

  • Page 224: Liquid Flood Back

    Application Guidelines System design recommendations • While the thermostat is off, the number of Other application needs a liquid receiver to store pressure switch resets should be limited to the refrigerant. avoid short cycling of the compressor. Use dedicated wiring and an additional relay which Receiver dimensioning requires special attention.

  • Page 225: Specific Application Recommendations

    Application Guidelines Specific application recommendations Low ambient application Low ambient start-up Under cold ambient conditions (<0°C), upon Early feeding of the evaporator and management start-up the pressure in the condenser may be so of the discharge pressure could help to attenuate low that a sufficient pressure differential across these effects.

  • Page 226: Low Load Operations

    Application Guidelines Specific application recommendations Low load operations The compressor should be run for a minimum that the motor receives enough cooling under period to ensure that the oil has sufficient time conditions of lowest refrigerant mass flow. to properly return to the compressor sump and Brazed plate A brazed plate heat exchanger needs very Due to the small volume of the brazed plate heat...

  • Page 227: Starting Sound Level

    Application Guidelines Sound and vibration management Starting sound level During start-up transients it is natural for the compressor rotation is characterized by an compressor sound level to be slightly higher objectionable sound. To correct reverse rotation, than during normal running. MLZ/MLM scroll disconnect power and switch any two of the compressors exhibit very little increased start-up three power leads at the unit contactor.

  • Page 228: Mechanical Vibrations

    Application Guidelines Sound and vibration management Mechanical vibrations Vibration isolation constitutes the primary In addition, it is extremely important that the method for controlling structural vibration. frame supporting the mounted compressor be MLZ/MLM scroll compressors are designed to of sufficient mass and stiffness to help dampen produce minimal vibration during operations.

  • Page 229: Installation

    Application Guidelines Installation Each MLZ/MLM compressor is shipped with www.danfoss.com or directly from: printed Instructions for installation. These http://instructions.cc.danfoss.com Instructions can also be downloaded from our web site System cleanliness The refrigeration system, regardless of the type mesh screen and can cause considerable damage of compressor used, will only provide high within a bearing assembly.
  • Page 230 Application Guidelines Installation Compressor connection When brazing the compressor fittings, do not overheat the compressor shell, which could severely damage certain internal components Heat shield due to excessive heating. Use of a heat shield and/or a heat-absorbent compound is highly recommended.

  • Page 231: Vacuum Evacuation And Moisture Removal

    Application Guidelines Installation Vacuum evacuation and Moisture obstructs the proper functioning of the MLZ and MLM compressors are delivered with moisture removal compressor and the refrigeration system. < 100 ppm moisture level. The required moisture level in the circuit after vacuum dehydration Air and moisture reduce service life and increase must be <...

  • Page 232: Ordering Information And Packaging

    Application Guidelines Ordering information and packaging Packaging Single pack Compressors are packed individually in a cardboard box. They can be ordered in any quantity. Minimum ordering quantity = 1. As far as possible, Danfoss will ship the boxes on full pallets of 6 or 9 compressors according below table.

  • Page 233: Single Pack

    Application Guidelines Ordering information and packaging Single pack Brazed version Model Voltage Voltage Voltage Voltage Voltage Voltage Compressors Connections Features variation code 1 code 2 code 4 code 5 code 7 code 9 MLZ015 120U8036 121U8002 121U8024 MLZ019 121U8060 121U8038 121U8004 121U8026 MLZ021...

  • Page 234: Industrial Pack

    Ordering information and packaging Application Guidelines Industrial pack Brazed version Model Voltage Voltage Voltage Voltage Voltage Voltage Compressors Connections Features variation code 1 code 2 code 4 code 5 code 7 code 9 MLZ015 120U8035 121U8001 121U8023 MLZ019 121U8059 121U8037 121U8003 121U8025 MLZ021...

  • Page 235: Spare Parts & Accessories

    Application Guidelines Spare parts & accessories Run capacitors for PSC wiring Code n° Description Application Packaging Pack size 8173231 PSC wiring Run capacitor 40 µF, motor voltage code 5 - 220-240V / 1 / 50 Hz MLZ/MLM015 Multipack 120Z0051 PSC wiring Run Capacitor 70 µF, motor voltage code 5 - 220-240V / 1 / 50Hz MLZ/MLM019-021-026 Multipack 8173233...

  • Page 236: Crankcase Heater

    Application Guidelines Spare parts & accessories Rotolock service valves and valve sets (without gasket) Code n° Description Application Packaging Pack size 7968004 Rotolock valve, V06, (1” Rotolock, 1/2” ODF) Industry pack Discharge MLM/Z015-026-045 8168031 Rotolock valve, V06, (1” Rotolock, 1/2” ODF) Multipack 7968006 Rotolock valve, V04, (1”1/4 Rotolock, 3/4”...

  • Page 237: Magnetic Discharge Non Return Valve

    Application Guidelines Spare parts & accessories Magnetic discharge non return valve Code No Description Application Packaging Pack Size 120Z5046 Magnetic discharge non return valve MLZ/MLM058-066-076 Multipack Lubricant Code No Description Application Packaging Pack Size 120Z5034 PVE lubricant, 1 litre can 320HV (FVC68D) Multipack IP54 upgrade kit Code No...
  • Page 238 Danfoss Commercial Compressors 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.
  • Page 239 Application guidelines Danfoss scroll compressors SM SY SZ R22 - R407C - R134a - R404A - R507A - 50 - 60 Hz http://cc.danfoss.com...
  • Page 241 Application Guidelines Content Compressor model designation .....4 System design recommendations ..32 Nomenclature ............4 General ...............32 Essential piping design considerations ..32 Danfoss scroll compression principle ..5 Refrigerant charge limit ........33 Off-cycle migration ..........33 Features.............6 Liquid flood back ...........35 Technical specifications ......7 Specific application recommendations 36 50 Hz data ..............

  • Page 242: Compressor Model Designation

    Application Guidelines Compressor model designation Danfoss scroll compressors are available Code numbers for ordering list are in section both as single compressors and as tandem “Ordering information & packaging”. units. The example below presents the single compressor nomenclature which equals the For tandem and trio assemblies, please refer technical reference as shown on the compressor to the Danfoss Parallel Application Guidelines...

  • Page 243: Danfoss Scroll Compression Principle

    Application Guidelines Danfoss scroll compression principle In a Danfoss SM / SY / SZ scroll compressor, the compression is performed by two scroll elements located in the upper part of the compressor. Suction gas enters the compressor at the suction connection.

  • Page 244: Features

    Application Guidelines Features In addition to the existing SM range compressors • Part protection and assembly reduces internal previously available, Danfoss is completing its leaks and increases life durability. range with 3 compressors. • Improved part isolation reduces greatly The new SM112-124 and SM/SZ147 compressors acoustic levels.

  • Page 245: 50 Hz Data

    Application Guidelines Technical specifications 50 Hz data Nominal Swept Displacement Nominal cooling capacity Power input E.E.R. Cap. 60 Hz volume charge weight   Model Btu/h Btu/h /W cm3/rev m3/h SM084 20 400 69 600 6.12 3.33 11.4 114.5 19.9 3.25 SM090 21 800...

  • Page 246: 60 Hz Data

    Application Guidelines Technical specifications 60 Hz data Nominal Nominal cooling Swept Displace- Power input E.E.R. Cap. 60 Hz capacity volume ment  charge weight  Model Btu/h Btu/h /W /rev SM084 24 600 84 000 7.40 3.34 11.4 114.5 24.1 3.25 SM090 26 400...

  • Page 247: Dimensions

    Application Guidelines Dimensions SM/SZ 084-090-100-110-120 Ø 240 Ø 230 A: 464.5 B: 514.5 A: 508 B: 558 A: 381.6 115.3 B: 431.6 A: 251.9 B: 288.4 Ø 254 A: 294.5 B: 330.8 A: 141.9 B: 178.4 100.4 99.4 4 holes Ø 19.4 A: 163 B: 179 A: 156.7...
  • Page 248 Application Guidelines Dimensions SM 112-124-SM/SZ147* SM/SZ 147 code 3 * except code 3 Ø 224 Ø 223.6 Ø 220.8 A: 535 Ø 243 B: 540 C: 542 A: 504 B: 509 C: 511 Ø 243 190.5 190.5 4 holes 4 holes 30°...
  • Page 249 Application Guidelines Dimensions SM/SZ 148-161 SM 148-161 code 3 SM 148-161 code 4 Ø266 Ø 266 115.3 270.4 99.5 99.5 4 holes 158.6 Ø 19.4 30° All dimensions in mm Grommet HM 8 bolt Lock washer Compressor base plate Flat washer Steel mounting sleeve 28 mm Rubber grommet...
  • Page 250 Application Guidelines Dimensions SM/SZ 175-185 & SY185 R and C version Brazed version Rotolock version Ø 266 Ø 256 641.3 528.5 Ø 316.3 110.1 345.4 279.4 4 holes Ø 19.43 304.8 370.8 30° 238.5 All dimensions in mm Grommet HM 8 bolt Lock washer Compressor base plate...

  • Page 251: Sm/Sz 185 P, X, Y Version

    Application Guidelines Dimensions SM/SZ 185 P, X, Y version Brazed version Rotolock version Ø 256 528.5±1.2 528.5±1.2 Ø 317 SANS COMPRESSION: 29.5 / Without compression SANS COMPRESSION: 29.5 AVEC COMPRESSION: 28.0 / Without compression / With compression AVEC COMPRESSION: 28.0 / With compression 345.4 279.4...
  • Page 252 Application Guidelines Dimensions SY 240-300-380 Brazed version Rotolock version Ø344 Ø344 Discharge 1”1/8 Discharge A&B: 1”1/8 C: 1”3/8 A: 690.9±2 B: 701.9±2 Ø333 C: 726 Ø333 A: 690.9 A: 618 B: 701.9 B: 629 C: 653 A: 618 B: 629 A: 479.5±1.2 Suction A: 479.5 ±1.2...

  • Page 253: Connection Details

    Application Guidelines Dimensions Connection details SM/SZ084-090-100-110- SM112-124- Model SM/SZ175 - SM/SZ/SY185 SY240-300 SY380 120-148-161 SM/SZ147 Version C-P-X MA - MB AA - AB AA - AB Suction and discharge connection brazed rotolock brazed brazed rotolock brazed brazed Oil sight glass threaded threaded threaded...

  • Page 254: Motor Voltage

    Application Guidelines Electrical data, connections and wiring Motor voltage Danfoss SM / SY / SZ scroll compressors are available in five different motor voltages. Motor voltage Motor voltage Motor voltage Motor voltage Motor voltage code 3 code 4 code 6 code 7 code 9 380 - 400 V - 3 ph...

  • Page 255: Ip Rating

    Application Guidelines Electrical data, connections and wiring SY 240 – 300 – 380 & The terminal box is provided with 2 triple SM/SZ 185 - P, X, Y versions Blue knockouts and 1 single knockout for power Black Brown supply and 4 double knockouts for the safety control circuit.
  • Page 256 Application Guidelines Electrical data, connections and wiring Three phase electrical characteristics Max. op. current Winding resistance Compressor model Ω SM/SZ084 0.44 SM/SZ090 0.38 SM/SZ100 0.38 SM/SZ110 0.26 SM112 0.27 SM/SZ120 0.26 Motor voltage code 3 SM/SZ124 0.27 SM/SZ147 0.24 200-230V/3 ph/60 Hz SM/SZ148 0.29 SM/SZ161...

  • Page 257: Danfoss Mci Soft-Start Controller

    Application Guidelines Electrical data, connections and wiring LRA (Locked Rotor Amp) Locked Rotor Amp value is the higher current as current. However in most cases, the real starting measured on mechanically blocked compressor current will be lower. A soft starter can be applied tested under nominal voltage.

  • Page 258: General Wiring Information

    Application Guidelines Electrical data, connections and wiring Input controlled soft start When the control voltage is applied to A1 - A2, the MCI soft starter will start the motor, according to the settings of the ramp-up time and initial torque adjustments. When the control voltage is switched OFF, the motor will switch off instantaneously.
  • Page 259 Application Guidelines Electrical data, connections and wiring Compressor models SM / SZ 175 – 185 R and C version CONTROL CIRCUIT CONTROL CIRCUIT 180s 180s LLSV Wiring diagram without pump-down cycle Wiring diagram with pump-down cycle Compressor models SY 240 - 300 - 380 & SM/SZ-185 (P, X, Y versions) Wiring diagram with pump-down cycle Wiring diagram without pump-down cycle Legends...

  • Page 260: Motor Protection

    Application Guidelines Electrical data, connections and wiring Motor protection The table below shows the protection method for the various compressors models. Overheating protection Over current protection Locked rotor protection Phase reversal protection   SM/SZ 175-185 R & C version Internal thermostat External overload protection Reverse vent.

  • Page 261: Voltage Unbalance

    Application Guidelines Electrical data, connections and wiring A red/green twin LED is visible on the module. A blinking red LED indicates an identifiable fault A solid green LED denotes a fault free condition. condition: PTC overheat Delay timer active (after PTC overheat) 40ms 460ms 40ms...

  • Page 262: Low Voltage Directive

    Application Guidelines Approval and certifications Approvals and SM / SY / SZ scroll compressors comply with the Certificates are listed on the product datasheets: certificates following approvals and certificates. http://www.danfoss.com/odsg CE 0062 or CE 0038 or CE0871 SM / SY / SZ models (European Directive) SM / SY / SZ...

  • Page 263: Operating Conditions

    Application Guidelines Operating conditions • Refrigerant and lubricants The scroll compressor application range is influenced by several parameters which need to • Motor supply be monitored for a safe and reliable operation. • Compressor ambient temperature • Application envelope (evaporating These parameters and the main temperature, condensing temperature, return recommendations for good practice and safety...

  • Page 264: Motor Supply

    Application Guidelines Operating conditions Motor supply SM / SY / SZ scroll compressors can be operated voltage ranges. In case of risk of under-voltage at nominal voltages as indicated on “Motor operation, special attention must be paid to voltage code” section. Under-voltage and over- current draw.
  • Page 265 Application Guidelines Operating conditions SZ084 to 185 (except SZ112-124-147) R134a S.H. = 11.1 K S.H. = 30 K SUPERHEAT Evaporating temperature (°C) SZ147 R134a Evaporating temperature (°C) SY240 to 380 R134a S.H. = 11.1 K S.H. = 30 K SUPERHEAT Evaporating temperature (°C) FRCC.PC.003.B4.02...

  • Page 266: Application Envelopes At Mean Temperatures

    Application Guidelines Operating conditions SZ084 to 185 R404A / R507A S.H. = 30 K SUPERHEAT S.H. = 11.1 K Evaporating temperature (°C) SZ084 to 185 & SY185 Dew temperature conditions R407C at DEW temperature S.H. = 30 K SUPERHEAT S.H. = 11.1 K Evaporating temperature (°C) SY240 to 380 Dew temperature conditions...
  • Page 267 Application Guidelines Operating conditions Dew temperature and mean temperature for R407C pressure (log) Mean Mean enthalpy The following operating diagrams show the difference between mean and dew temperature application envelopes. Dew temperature Dew temperature conditions Example for SZ 084 to 185 S.H.

  • Page 268: Discharge Temperature Protection

    Application Guidelines Operating conditions Discharge temperature The discharge gas temperature must not exceed discharge temperature must be monitored protection 135°C. The discharge gas thermostat accessory kit during development test by the equipment (code 7750009) includes all components required manufacturer. for installation, as shown below. The thermostat must be attached to the discharge line within The DGT should be set to open at a discharge gas 150 mm from the compressor discharge port and...

  • Page 269: Cycle Rate Limit

    Application Guidelines Operating conditions Internal pressure relief valve The SY/SZ240 to SY/SZ380 incorporate an internal relief valve set to open between the internal high and low pressure sides of the compressor when the pressure differential between the discharge and suction pressures surpasses 31 to 38 bar.

  • Page 270: General

    Application Guidelines System design recommendations General Successful application of scroll compressors beyond the limits given in this manual. Poor is dependent on careful selection of the performance, reduced reliability, or both may compressor for the application. If the compressor result. is not correct for the system, it will operate Essential piping design Proper piping practices should be employed to...

  • Page 271: Refrigerant Charge Limit

    Application Guidelines System design recommendations Refrigerant charge limit Danfoss SM / SY / SZ compressors can tolerate Use the tables below to quickly evaluate the liquid refrigerant up to a certain extend required compressor protection in relation with without major problems. However, excessive the system charge and the application.
  • Page 272 Application Guidelines System design recommendations Sump heater The surface sump heaters are designed to protect heater. A crankcase heater is also required on all the compressor against off cycle migration of reversible cycle applications. refrigerant. When the compressor is idle, the oil temperature in the sump of the compressor must The heater must be energized for a minimum of 6 be maintained at no lower than 10 K above the...

  • Page 273: Liquid Flood Back

    Application Guidelines System design recommendations Liquid flood back During normal operation, refrigerant enters the design must be such that repeated and excessive compressor as a superheated vapour. Liquid flood back is not possible. flood back occurs when a part of the refrigerant entering the compressor is still in liquid state.

  • Page 274: Specific Application Recommendations

    Application Guidelines Specific application recommendations Low ambient application Low ambient start-up Under cold ambient conditions (<0°C), upon protection” in order to prevent this from start-up the pressure in the condenser and, happening. if present, the receiver may be so low that Early feeding of the evaporator and management a sufficient pressure differential across the of the discharge pressure could help to attenuate...

  • Page 275: Low Load Operations

    Application Guidelines Specific application recommendations Low load operations The compressors should be run for a compressor sumps and that the motor has minimum period in order to ensure that the sufficient time to cool under conditions of lowest oil has sufficient time to properly return to the refrigerant mass flows.

  • Page 276: Water Utilizing Systems

    Application Guidelines Specific application recommendations Discharge line, reversing The Danfoss SM/SY/SZ scroll compressor is a high position. At the same time, it is important that valve, solenoid valves volumetric machine and, as such, can rapidly the selection and sizing of the reversing or 4-way build up pressure in the discharge line if gas valve ensure that the valve switches quickly in the line becomes obstructed even for a very...

  • Page 277: Sound And Vibration Management

    Application Guidelines Sound and vibration management Starting sound level During start-up transients it is natural for the compressor rotation is characterized by an compressor sound level to be slightly higher objectionable sound. To correct reverse rotation, than during normal running. SM / SY / SZ scroll disconnect power and switch any two of the compressors exhibit very little increased start-up three power leads at the unit contactor.
  • Page 278 Application Guidelines Sound and vibration management Compressor sound radiation For sound radiating from the compressor, the come into direct contact with any non-insulated emission path is airborne and the sound waves parts on the walls of the unit. are travelling directly from the machine in all directions.

  • Page 279: Installation

    Application Guidelines Installation Each SM / SY / SZ compressor is shipped with web site: www.danfoss.com or directly from: printed Instructions for installation. These http://instructions.cc.danfoss.com instructions can also be downloaded from our Compressor handling and Each Danfoss SM / SY / SZ scroll compressor is and between -35°C and 70°C when charged with storage equipped with two lift rings on the top shell.

  • Page 280: Compressor Holding Charge

    Application Guidelines Installation Mounting of SY 240-300-380: the required bolt Note: for parallel assemblies see specific size is HM10. The minimum required flat washer recommendations in Danfoss parallel application outside diameter is 27 mm. Mounting bolts guidelines, FRCC.PC.005. must be tightened to a torque of 40 Nm. These Lock washer * HM 10 Bolt * bolts and washers are not supplied with the...

  • Page 281: System Pressure Test

    Application Guidelines Installation Compressor connection When brazing the compressor fittings, do not only enough brazing material to flow the full overheat the compressor shell, which could circumference of the joint. severely damage certain internal components • Move the torch to Area C only long enough to due to excessive heating.

  • Page 282: Leak Detection

    Application Guidelines Installation Leak detection Leak detection must be carried out using a or acetylene as these may form an inflammable mixture of nitrogen and refrigerant or nitrogen mixture. and helium, as indicated in the table below. Pressurize the system on HP side first then Low Never use other gasses such as oxygen, dry air side.

  • Page 283: Insulation Resistance And Dielectric Strength

    Application Guidelines Installation Vacuum or charge from one side can seal the Be sure to follow all government regulations scrolls and result in a non-starting compressor. regarding refrigerant reclamation and When servicing, always ensure that LP/HP storage. For more detailed information, see pressures are balanced before starting the “Recommended refrigerant system charging compressor.

  • Page 284: Ordering Information & Packaging

    Application Guidelines Ordering information & packaging Packaging Single pack Industrial pack Compressor models Gross Gross Static Length Width Height Length Width Height weight Nbr* weight stacking pallets SM/SZ084 1140 SM/SZ090 1140 SM/SZ100 1140 SM/SZ110-120 1140 SM112 1150 SM124 1150 SM/SZ147 1150 SM/SZ148-161 1140...
  • Page 285 Application Guidelines Ordering information & packaging SM-SY Single Code no. Compressor model Connections Motor protection 460V/3/60Hz 200-230V/3/60Hz 380V/3/60Hz 380-400V/3/50Hz SM084 Brazed Internal SM084-4VI SM090 Brazed Internal SM090-3VI SM090-4VI SM100 Brazed Internal SM100-3VI SM100-4VI SM100-9VI SM110 Brazed Internal SM110-3VI SM110-4VI SM110-9VI SM112 Brazed Internal...
  • Page 286 Application Guidelines Ordering information & packaging SM-SY Industrial Code no. Compressor model Connections Motor protection 460V/3/60Hz 200-230V/3/60Hz 380V/3/60Hz 380-400V/3/50Hz SM084 Brazed Internal SM084-4VM SM090 Brazed Internal SM090-3VM SM090-4VM SM090-9VM SM100 Brazed Internal SM100-3VM SM100-4VM SM100-9VM SM110 Brazed Internal SM110-3VM SM110-4VM SM110-9VM SM112 Brazed...
  • Page 287 Application Guidelines Ordering information & packaging SZ Single Code no. Compressor model Connections Motor protection 460V/3/60Hz 200-230V/3/60Hz 380V/3/60Hz 380-400V/3/50Hz SZ084 Brazed Internal SZ084-4VI SZ090 Brazed Internal SZ090-3VI SZ090-4VI SZ090-9VI SZ100 Brazed Internal SZ100-3VI SZ100-4VI SZ100-9VI SZ110 Brazed Internal SZ110-3VI SZ110-4VI SZ110-9VI SZ120 Brazed...
  • Page 288 Application Guidelines Ordering information & packaging SZ Industrial Code no. Compressor model Connections Motor protection 460V/3/60Hz 200-230V/3/60Hz 380V/3/60Hz 380-400V/3/50Hz SZ084 Brazed Internal SZ084-4VM SZ090 Brazed Internal SZ090-3VM SZ090-4VM SZ090-9VM SZ100 Brazed Internal SZ100-4VM SZ100-9VM SZ110 Brazed Internal SZ110-3VM SZ110-4VM SZ110-9VM SZ120 Brazed Internal...

  • Page 289: Accessories

    Application Guidelines Accessories Solder sleeve adaptator set Pack Type Code n° Description Application Packaging size 7765005 Solder sleeve adapter set (1"3/4~1"1/8), (1"1/4~3/4") SM/SZ084-090-100 Multipack SM110-112-120-124-148-161&SM/SZ147& 120Z0405 Solder sleeve adapter set (1"3/4~1"3/8), (1"1/4~7/8") Multipack SZ110-120-148-161 SM110-112-120-124-148-161&SM/SZ147& 7765006* Solder sleeve adapter set (1"3/4~1"3/8), (1"1/4~3/4") Multipack SZ110-120-148-161 7765028 Solder sleeve adapter set (2"1/4~1"5/8), (1"3/4~1"1/8)
  • Page 290 Application Guidelines Accessories Rotolock nuts Pack Type Code n° Description Application Packaging size 8153123 Rotolock nut,1"1/4 Models with 1"1/4 rotolock connection Multipack 8153124 Rotolock nut,1"3/4 Models with 1"3/4 rotolock connection Multipack 8153126 Rotolock nut,2"1/4 Models with 2"1/4 rotolock connection Multipack Rotolock service valve Pack Type...
  • Page 291 Application Guidelines Accessories Discharge temperature protection Pack Type Code No Description Application Packaging Size 7750009 Discharge thermostat kit All models Multipack 7973008 Discharge thermostat kit All models Industry pack Mounting hardware Pack Type Code No Description Application Packaging Size Mounting kit for scroll compressors. Grommets, 8156138 Single pack sleeves, bolts, washers...
  • Page 292 Application Guidelines Accessories Terminal boxes, covers & T-block connectors Pack Type Code No Description Application Packaging Size 8156139 Terminal box 186 x 198 mm, incl cover SM/SZ148-3.161-3.175.185 Single pack 120Z0413 Terminal box cover SM/SZ147-3 Single pack SM084.090.100.110.112.120.124.147 Service kit for terminal box 96 x 115 mm, including 1 .148.161 (except SM148-3.161-3) &...
  • Page 293 Application Guidelines Updates Previous Version Current Version • Page 19: Danfoss MCI soft-start controller • Page 19: Updated Danfoss MCI soft-start controller • Page 27: Added SZ147 R134a operating map FRCC.PC.003.B4.02...
  • Page 294 Danfoss Commercial Compressors 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.

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