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Danfoss HHP Series Application Manuallines

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Application guidelines
Danfoss Heat Pump scroll
compressors, HHP-Series
50Hz - R407C
http://cc.danfoss.com

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  • Page 1 Application guidelines Danfoss Heat Pump scroll compressors, HHP-Series 50Hz - R407C http://cc.danfoss.com...

  • Page 4: Table Of Contents

    Application Guidelines Content Scroll compression principle ................... 6 Scroll compressor components ..........................6 The scroll compression process ..........................7 Performance ..................................7 Compressor model designation ..................8 Nomenclature .................................. 8 Label ....................................8 Technical specifications ....................9 50-Hz data ..................................9 Performance table ................................
  • Page 5 Application Guidelines Content System design recommendations .................. 19 General ....................................19 Essential piping design considerations .........................19 Refrigerant charge limit ..............................20 Reversible heat pump systems ..........................20 Crankcase heater................................22 Minimum sump superheat ............................22 Loss of charge protection ............................22 Oil level checking and top-up ...........................22 High pressure ratio ................................22 Preventing liquid flood back .............................22 Testing for excessive liquid flood back ........................22...

  • Page 6: Scroll Compressor Components

    Application Guidelines Scroll compression principle Scroll compressor The motor stator is rigidly attached to the shell. shaft is supported by two bearings, one in the components The rotor is shrink-fit onto the eccentric shaft. The crankcase and the second below the motor. FRCC.PC.017.A2.02...

  • Page 7: Performance

    SUCTION COMPRESSION DISCHARGE Danfoss Heat Pump scroll compressors are and the factory, very high standards of reliability manufactured using most advanced and process control were first priority.

  • Page 8: Compressor Model Designation

    Application Guidelines Compressor model designation Nomenclature Type Size Motor Features Application: Other features H: high temperature Gas equali- Oil sight Oil equali- LP gauge sation port glass drain sation port None None None None None Family: HP: heat pump R407C PVE Tubing and electrical connections P: brazed connections, spade terminals C: brazed connections, screw terminals...

  • Page 9: Technical Specifications

    Superheat: 10 K Subcooling: 5 K Subject to modification without prior notification Conditions: 400V/3ph/50Hz (motor T4), 230V/1ph/50 Hz (motor T5) For full data details and capacity tables refer to Online Datasheet Generator : www.danfoss.com/odsg Performance table Model 2 550 3 070...

  • Page 10: Hhp015-019-021-026

    Application Guidelines Dimensions HHP015-019-021-026 238.8 190.25 - 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 (1/2 inch) Suction line (1) 19.13-19.23 (3/4 inch) 72.1 - 75.1...

  • Page 11: Hhp030-038-045

    Application Guidelines Dimensions HHP030-038-045 190.25 - 190.75 4 x Ø 19.0 - 20.0 95.25 95.25 133.6 119.2 190.25 - 190.75 14° 31° 34° 78.5 - 80.5 45° 182.54 - 184.54 Discharge line 12.75-12.85 (1/2 inch) Suction line 22.30-22.48 (7/8 inch) 92.0 - 94.0 402.7 435.9...

  • Page 12: Electrical Data, Connections And Wiring

    Application Guidelines Electrical data, connections and wiring Motor voltage Danfoss Heat Pump scroll compressors are available in 2 different motor voltages. Motor voltage code 4 Motor voltage code 5 Nominal voltage 50 Hz 380-400V-3-50 Hz 220-240V-1-50 Hz Voltage range 50 Hz...

  • Page 13: Ip Rating

    25°C, the measured resistance must be corrected with following formula: Electrical connections The Danfoss Heat Pump scroll compressors are running within the defined nominal voltage. PSC designed to operate without any assistance if wiring is sufficient (see below).

  • Page 14: Nominal Capacitor Value

    HHP026T5LP6 HHP030T5LC6 HHP038T5LC6 Internal motor protection The Danfoss Heat Pump scroll compressors are If the internal overload protector trips out, it must equipped with an internal line break protector cool down to about 60°C to reset. Depending on mounted on the motor windings. The protector...

  • Page 15: Approvals And Certifications

    Application Guidelines Approvals and certifications Approvals and certificates The Danfoss Heat Pump scroll compressors Certificates are listed on the product datasheets: comply with the following approvals and http://www.danfoss.com/odsg certificates. CE 0062 or CE 0038 All models (European Directive) All models...

  • Page 16: Operating Conditions

    The PVE lubricant is compatible with R22 which makes the Danfoss Heat Pump scroll compressors a very versatile multi- refrigerant solution. Motor supply The Danfoss Heat Pump scroll compressors can...

  • Page 17: Application Envelope

    DGT compressor! protection is required (n°1) and where it is not (n°2). A DGT accessory is available from Danfoss: refer to section "Spare parts and accessories". FRCC.PC.017.A2.02...

  • Page 18: High And Low Pressure Protection

    (loss of charge safety switch) setting is also listed in the table above. On/off cycling (cycle rate Danfoss recommends a restart delay timer to limit cooling after start-up along with proper oil return. limit) compressor cycling. The timer prevents reverse...

  • Page 19: General

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

  • Page 20: Refrigerant Charge Limit

    Application Guidelines System design recommendations Refrigerant charge limit Danfoss Heat Pump scroll compressors can Use the tables below to quickly evaluate the tolerate liquid refrigerant up to a certain extend required compressor protection in relation without major problems. However, excessive with the system charge and the application.
  • Page 21 Application Guidelines System design recommendations Heat pumps NON- NON- INDOOR COIL BLEED BLEED Expansion device NON- OUTDOOR COIL BLEED BLEED Expansion device <3.6 kg SYSTEM CHARGE >3.6 kg <5.4 kg >5.4 kg TEST REQUIRED ACCEPTABLE SUMP SUPERHEAT TEMPERATURE ACCUMULATOR REQUIRED INDOOR COIL BLEED BLEED...

  • Page 22: Crankcase Heater

    6K to 17K above saturated suction section "System design recommendations". Loss of charge protection Danfoss Heat Pump scroll compressors do not • A discharge line thermostat set no higher than include a thermal valve protection; therefore, 140°C is recommended. The thermostat must...

  • Page 23: Running Sound Level

    Because of the Danfoss’s unique design of a full- also do not generate the penetrating power of suction gas & oil cooled motor, compressor body lower-frequency sound.

  • Page 24: Installation

    Application Guidelines Installation Each Danfoss Heat Pump scroll compressor is shipped with printed Instructions for installation. System cleanliness The refrigerant compression system, regardless System contamination is one of main factors of the type of compressor used, will only provide affecting equipment reliability and compressor high efficiency and good reliability, along with a service life.

  • Page 25: Vacuum Evacuation And Moisture Removal

    The compressor should not be exposed to the open air for extended The PVE oil used in Danfoss Heat Pump scroll periods. compressors is highly hygroscopic and will •...

  • Page 26: Liquid Line Filter Driers

    Remove and replace the liquid line filter burnout drier and the liquid line and suction line drier and install a Danfoss type DAS burnout drier filter driers. of appropriate capacity. FRCC.PC.017.A2.02...

  • Page 27: Ordering Information And Packaging

    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 compressors according below table. • Each box also contains following accessories: •...

  • Page 28: Spare Parts & Accessories

    Application Guidelines Spare parts & accessories Run capacitors for PSC wiring Pack Type Code n° Description Application Packaging size 40 µF 8173231 Run capacitor (µF) HHP015 Multipack 60 µF 120Z0050 Run capacitor (µF) HHP019, HHP021 Multipack 70 µF 120Z0051 Run capacitor (µF) HHP026 Multipack 50 µF...

  • Page 29: Discharge Temperature Protection

    Application Guidelines Spare parts & 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 Lubricant Pack Type Code No Description Application Packaging Size 120Z5034 PVE (0.95 liter can)
  • Page 32 Danfoss Commercial Compressors, BP 331, 01603 Trévoux Cedex, France | +334 74 00 28 29 FRCC.PC.017.A2.02 - January 2015 - Replaces FRCC.PC.017.A1.02 April 2010 © Copyright Danfoss | Commercial Compressors | 2015.01...
  • Page 33 Compresseurs scroll Danfoss pour la réfrigération Efficacité et fiabilité élevées, même à de basses températures Plus frais que jamais ! Les séries MLZ et LLZ pour la réfrigération moyennes et basses températures, sont efficient par design. Répondez aux normes agro-alimentaires les plus strictes et réduisez les coûts de fonctionnement.
  • Page 34 Compresseurs scroll de Danfoss destinés aux applications de réfrigération Les séries MLZ et LLZ ont été spécialement conçues pour les applications de réfrigération moyennes et basses températures. Elles conviennent à un large éventail de conditions de fonctionnement dans divers systèmes de refroidissement.
  • Page 35 Avec injection de vapeur avec l’injection de vapeur Température d’évaporation(°F) à de basses températures Danfoss vous propose, en option, le kit économiseur pour améliorer l’efficacité du compresseur et sa puissance à l’aide RGT :  20 °C / 68 °F de l’injection de vapeur.
  • Page 36 R134A MLZ – applications moyennes températures 50Hz   PUISSANCE FRIGORIFIQUE EN W / TEMPÉRATURE DE CONDENSATION 40 °C EN12900 Puissance Puissance Puissance frigorifique absorbée sonore Modèle -15 °C -10 °C -5 °C 0 °C 5 °C 10 °C 15 °C en W en kW dB(A) MLZ015 1 650 2 100 2 640 3 280...
  • Page 37 R404A MLZ – applications moyennes températures 50 Hz PUISSANCE FRIGORIFIQUE EN W / TEMPÉRATURE DE CONDENSATION 40 °C EN12900 Puissance Puissance Puissance frigorifique absorbée sonore Modèle -25 °C -20 °C -15 °C -10 °C -5 °C 0 °C 5 °C 10 °C en W en kW dB(A) MLZ015 1 660 2 180 2 770 3 450...
  • Page 38 Danfoss n’assume aucune responsabilité quant aux erreurs qui se seraient glissées dans les catalogues, brochures ou autres documentations écrites. Dans un souci constant d’amélioration, Danfoss se réserve le droit d’apporter sans préavis toutes modi cations à ses produits, y compris ceux se trouvant déjà en commande, sous réserve, toutefois, que ces modi cations n’a ectent pas les caractéristiques déjà...
  • Page 39 Guide de sélection et d’application RECIPROCATING COMPRESSORS MT/MTZ 50 Hz R407C R134a R404A / R507 1 CYLINDRE 2 CYLINDRES 4 CYLINDRES 8 CYLINDRES Refrigeration and Demandez-nous Air Conditioning toujours plus...
  • Page 40 ......p 3 DANFOSS MANEUROP NOMENCLATURE DES COMPRESSEURS ..p 4 Référence commerciale .

  • Page 41: Compresseurs À Pistons

    Danfoss Maneurop Compresseurs à Pistons Les compresseurs hermétiques à pistons Danfoss Maneurop sont spécialement conçus pour pouvoir être utilisés dans une vaste plage de conditions de fonctionnement. Toutes les pièces sont réalisées avec une grande précision et une qualité supérieure pour garantir une durée de vie maximale.

  • Page 42: Nomenclature Des Compresseurs

    Nomenclature compresseur RÉFÉRENCE COMMERCIALE MT Z 64 - Type emballage Type compresseur (voir p 27) Égalisation d'huile Huile polyolester + voyant à visser Code tension moteur Puissance moteur (voir ci-après) (diviser par 12 pour convertir en CV) EXEMPLES : MT 64 - 4I MT 64, emballage individuel (I), code tension 4, version standard MT 64 - 4VI MT 64, emballage individuel (I), code tension 4, version VE (V)

  • Page 43: Données Techniques

    Données techniques CARACTÉRISTIQUES TECHNIQUES Versions** Nbre Charge Poids Cylindrée cyl. huile Modèles Code tension compresseur /rev) /h)* (kg) MT / MTZ 18 JA 30.23 5.26 0.95 S-VE S-VE S-VE S-VE MT / MTZ 22 JC 38.12 6.63 0.95 S-VE S-VE S-VE S-VE S-VE...

  • Page 44: Performances Nominales R22, R407C

    Données techniques PERFORMANCES NOMINALES R22, R407C - 50 HZ PERFORMANCES NOMINALES * PERFORMANCES NOMINALES ** MT - R22 MTZ - R407C Puissance Puissance Intensité Cœf. de Puissance Puissance Intensité Cœf. de Modèles frigorifique absorbée absorbée performance frigorifique absorbée absorbée performance compresseur (kW) (W/W)

  • Page 45: Performances Nominales R134A, R404A, R507

    Données techniques PERFORMANCES NOMINALES R134a, R404A, R507 - 50 HZ PERFORMANCES NOMINALES * PERFORMANCES NOMINALES ** R134a R404A / R507 Puissance Puissance Intensité Cœf. de Puissance Puissance Intensité Cœf. de Modèles frigorifique absorbée absorbée performance frigorifique absorbée absorbée performance compresseur (kW) (W/W) (kW)

  • Page 46: Plages D'application

    Plages d’application Plage d’application pour les compresseurs MT au S.H. = 11.1 K S.H. = 30 K Température d'évaporation (°C) Plage d’application pour les compresseurs MTZ au R407C S.H. = 11.1 K S.H. = 30 K au point de rosée Température d'évaporation (°C) Plage d’application pour les compresseurs MTZ au...
  • Page 47 Selon les recommandations fluide frigorigène est généralement Glissement de température : de l’Asercom, Danfoss Maneurop décrit comme presque azéotrope. Durant les phases d’évaporation utilise les températures de rosée Le R404A est classé dans cette et de condensation, à...

  • Page 48: Tables De Performances

    Tables de performances Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 0.59 1 240 0.69 1 740 0.79 2 360 0.88 3 120 0.95 4 040 1.00 5 140 1.04 6 430 1.04...
  • Page 49 Tables de performances Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 4 850 2.64 6 670 2.99 8 820 3.35 11 340 3.69 14 260 4.01 17 610 4.30 21 430 4.56 25 750...

  • Page 50: R407C

    Tables de performances R407C Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 1 690 0.80 2 280 0.87 3 020 0.93 3 920 0.98 4 990 1.00 6 270 1.00 7 760 0.98 1 490 0.83 2 040...
  • Page 51 Tables de performances R407C Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 10 080 4.53 13 440 4.99 17 510 5.39 22 380 5.72 28 130 5.95 34 830 6.07 42 580 6.05 9 050 4.72 12 230...

  • Page 52: R134A

    Tables de performances R134a Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 0.60 1 290 0.67 1 790 0.73 2 380 0.78 3 070 0.82 3 880 0.84 4 820 0.84 5 890 0.83 0.62...
  • Page 53 Tables de performances R134a Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 5 700 3.16 7 880 3.52 10 560 3.85 13 790 4.14 17 650 4.36 22 210 4.50 27 520 4.55 33 670 4.49...

  • Page 54: R404A / R507

    Tables de performances R404A / R507 Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 0.67 1 210 0.78 1 640 0.87 2 170 0.95 2 830 1.02 3 640 1.07 4 590 1.09...
  • Page 55 Tables de performances R404A / R507 Modèles P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. P.F. P.A. 5 660 3.88 7 590 4.44 10 020 4.97 13 050 5.45 16 730 5.85 21 150 6.16 26 380...

  • Page 56: Dimensions

    Dimensions 1 CYLINDRE Boîte à bornes Voyant d'huile (modèle VE uniquement) Connecteurs (plats) 1/4” AMP-AWE Borne de terre M4-12 Opercule Ø 21 mm 55˚ Ø 21 mm Indice de protection : IP 55 (avec presse étoupe) Ø 225 Modèle avec code moteur 3,4 et 6 forme enveloppe supérieure arrondie...

  • Page 57: Cylindres

    Dimensions 2 CYLINDRES Boîte à bornes Trou de fixation pour la résistance de carter PTC Connecteurs (plats) 1/4” AMP-AWE Borne de terre M4-12 Opercule Ø 21 mm 37˚ Ø 21 mm Indice de protection : IP 55 (avec presse étoupe) Boîte à...

  • Page 58: Cylindres

    Dimensions 4 CYLINDRES Trou de fixation Boîte à bornes pour la résistance Voyant d'huile de carter PTC (modèle VE uniquement) 10-32 UNF x 9,5 Borne de terre M4-12 Opercule Ø 29 mm Ø 29 mm Indice de protection : IP 54 (avec presse étoupe) Boîte à...

  • Page 59: Cylindres

    Dimensions 8 CYLINDRES Égalisation d'huile Boîte à bornes 10-32 UNF x 9,5 Ø 29 mm Borne de terre M6 Opercule Ø 29 mm Opercule Ø 21 mm Indice de protection : IP 55 (avec presse étoupe) Prise de pression BP(schrader) Ø...

  • Page 60: Caractéristiques Électriques

    Caractéristiques électriques et schémas de câblage COMPRESSEURS MONOPHASÉS Ω LRA - Intensité rotor MCC - Intensité maximale Résistance bobinage ( bloqué (A) de service (A) (± 7 % à 20° C) Code moteur Phase principal démarrage principal démarrage MT / MTZ 18 JA 1.36 4.82 1.78...

  • Page 61: Schémas De Câblage

    Caractéristiques électriques et schémas de câblage SCHÉMAS DE CÂBLAGE CONSEILLÉS 230 V Monophasé Câblage PSC avec Ω “trickle circuit” 220 k - 1 W µ Thermostat C : Commun / S : Phase de démarrage (auxiliaire) / R : Phase principale (marche) A &...

  • Page 62: Compresseurs Triphasés

    Caractéristiques électriques et schémas de câblage COMPRESSEURS TRIPHASÉS Ω LRA - Intensité rotor MCC - Intensité maximale Résistance bobinage (± 7 % à 20° C) bloqué (A) de service (A) Code moteur MT / MTZ 18 JA 2.49 10.24 MT / MTZ 22 JC 2.49 10.24 2.49...

  • Page 63: Compresseurs 8 Cylindres

    50% par rapport à la durée de vie de ces pièces pour les compresseurs triphasés. valeur nominale Pour ces réglementations, Danfoss • peuvent être utilisés sur les installations Note importante : le nombre de Maneurop offre des kits de démarrage existantes utilisant les compresseurs démarrage doit être limité...

  • Page 64: Informations Générales / Normes

    Informations générales et normes MARQUES DE CONFORMITÉ NORMES VERBAND UNDERWRITERS EUROPEAN FRANÇAISES DEUTSCHER LABORATORIES INC. DIRECTIVE ELEKTROTECHNIKER La plupart des compresseurs Maneurop ® MT / MTZ répondent aux normes internationales de sécurité et sont approuvés par les organismes ci-dessus. Tous les modèles MT & MTZ sont marqués CE. Se référer au bulletin technique TI2-011 pour une liste détaillée. INDICE D’ÉVOLUTION TECHNIQUE EX: MT125 HU 4 D VE MT 18...

  • Page 65: Indice De Protection

    Divers INDICE DE PROTECTION IP Les indices de protection IP des boîtiers de raccordement électrique sont indiqués sur les plans des compresseurs (voir pages correspondantes). Lettre de désignation Les informations ci-contre indiquent les différentes combinaisons possibles Premier chiffre suivant la norme CEI 529. Degré...

  • Page 66: Fluides Frigorigène Et Lubrifiants

    Note : la charge initiale 160P doit-être à base de R22 remplacée par de l’huile 160ABM. Hydrocarbones Danfoss Maneurop n’autorise pas l’utilisation des hydrocarbones dans ses compresseurs Selon le protocole de Montréal Aussi, les performances et autres avec ces fluides frigorigènes et peuvent les fluides frigorigènes CFC tels que...
  • Page 67 Les hydrocarbones tels que propanes, cas l’utilisation de ces fluides même avec une charge réduite en isobutanes, … etc sont très inflammables. frigorigènes hydrocarbones avec les fluide frigorigène. Danfoss Maneurop n’autorise en aucun compresseurs Maneurop MT ou MTZ Catalogue 50 Hz RECIPROCATING COMPRESSORS...

  • Page 68: Recommandations Système

    être calculé pour fonctionne (vitesse 8 à 12 m/s). rotolock, qui peuvent être fournies garantir une vitesse minimale des gaz comme accessoire par Danfoss de 4 m/s. La section équivalente des tubes Maneurop, sont définies au diamètre Dans les parties verticales, la vitesse montants doit être calculée pour une...

  • Page 69: Limites D'utilisation

    Recommandations système Tuyauteries de refoulement où la longueur des tuyauteries excède voyant liquide, etc..., doivent toujours Lorsque le condenseur est implanté 20 m, ayant plusieurs pièges à huile où être sélectionnés en fonction du fluide au-dessus du compresseur, un piège bien possédant un séparateur d’huile, frigorigène utilisé.

  • Page 70: Plage De Tension Et Cyclage Moteur

    Recommandations système PLAGE DE TENSION ET CYCLAGE MOTEUR Plage de tension d’utilisation décrites dans ce tableau. génèrent des surintensité dans une Les limites d’application en plage de La différence de tension maximale ou plusieurs des phases moteur tension sont spécifiées dans le tableau entre phases pour le moteur triphasé...
  • Page 71 Recommandations système Retour du fluide frigorigène au Les conséquences négatives de ce type d’importants retours liquide, des coups compresseur de fonctionnement sont : de liquide pourront se produire En régime de fonctionnement normal • dilution permanente de l’huile et stabilisé, le fluide frigorigène quitte •...
  • Page 72 Recommandations système Résistance de carter d’huile à 10 K au-dessus de la tempé- à distance, groupe de condensation et Une résistance de carter protège le rature de gaz saturé dans l’enveloppe installations “split-system”. compresseur contre les migrations de du compresseur pendant les périodes Tous les compresseurs 8 cylindres sont fluide frigorigène pendant les périodes d’arrêt.

  • Page 73: Acoustique Et Vibration

    Un soin particulier doit être pris pour tions fixes en A/C ou réfrigération. vibratoires. éviter de réaliser une tuyauterie ayant Danfoss Maneurop ne garantit pas ces Le compresseur ne doit jamais être une fréquence de résonance proche mêmes compresseurs en application assemblé...

  • Page 74: Installation Et Mise En Service

    Installation et maintenance PROPRETE DU CIRCUIT La qualité mise en œuvre lors du • Humidité et air. mettre en place une vanne schrader, montage d’une installation contribue très Utiliser uniquement du tube cuivre de par exemple), les limailles et copeaux largement à...

  • Page 75: Détection Des Fuites

    Installation et maintenance Lorsque des vannes rotolock sont Schrader prévues sur le compresseur elles doivent être fermées immédiatement après montage, afin d’isoler le compresseur de l’ambiance d’une part ou du circuit non encore déshydraté d’autre part. Note : dans le cas d’un montage en centrale, par exemple, en atelier et non pas sur le site définitif, un tirage au vide poussé...

  • Page 76: Démarrage

    Installation et maintenance un niveau de vide de 500 microns s’accroît rapidement, le système d’humidité dans l’installation peut (0.67 mbar). n’est pas étanche. atteindre 100 ppm. Une pompe à vide appropriée Procéder de nouveau à une opération En fonctionnement, l’utilisation d’un à...
  • Page 77 Installation et maintenance faible que possible car elle s’avère être correct, il est impératif - la présence de gaz incondensables augmente les performances de de vérifier l’isolation de la ligne - une surchauffe excessive compresseur et aussi sa durée de vie. d’aspiration entre l’évaporateur et le - une charge de réfrigérant trop A noter, cependant, que des valeurs...
  • Page 78 Tous les efforts ont été faits pour publier les performances et descriptions les plus précises possibles. Cependant, du fait de l’amélioration et l’évolution constante de nos produits, ces informations sont susceptibles d’être modifiées sans avis préalable. Maneurop ® est une marque de Danfoss.
  • Page 79 Application guidelines Danfoss Scroll for Refrigeration MLM / MLZ 50-60Hz - R404A - R507 - R134a - R22 - R407A - R407F http://cc.danfoss.com...
  • Page 81 Application Guidelines Content Features ............ 4 System design recommendations ..34 General ..................34 Scroll compression principle ....5 Essential piping design considerations .....34 The scroll compression process........5 Refrigerant charge limit ..........35 Off-cycle migration ............35 Compressor model designation ..... 6 Liquid flood back ...............37 Nomenclature ...............6 Specific application recommendations 38 Label ..................6...
  • Page 82 Features With its unique scroll design and manufacturing are engineered for refrigeration, and offer process flexibility, the new Danfoss MLZ/ cooling capacity from 3.4 to 21 kW (2 to 10 HP) MLM refrigeration compressor offers a highly at common voltages and frequencies as well...

  • Page 83: The Scroll Compression Process

    SUCTION COMPRESSION DISCHARGE Danfoss scroll compressors are manufactured standards of reliability and process control using the most advanced machining, assembly, were first priority. The result is a highly efficient and process control techniques. In design of...

  • Page 84: Nomenclature

    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 85 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 11263 1.75 1.89 6.45 33.77 5.88 1.06 30.84 MLZ019 4500 15358...
  • Page 86 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 3100 10580 1.55 6.83 33.77 5.88 1.06 30.84 MLZ019 4000 13652 2.04...
  • Page 87 Technical specifications Application Guidelines 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 13993 2.10 1.94 6.62 33.77 7.09 1.06 30.84 MLZ019 5500 18771...
  • Page 88 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 3800 12969 1.85 2.04 6.96 33.77 7.09 1.06 30.84 MLZ019 4900 16724...

  • Page 89: Technical Specifications

    37300 11.30 Legend: To: Evaporating temperature in °C Qo: Cooling capacity in W RGT= 20°C Tc: Condensing temperature in °C Pe: Power input in kW Subooling= 0K Capacity data at other conditions are available in the datasheets at: www.danfoss.com/odsg FRCC.PC.015.A8.02...

  • Page 90: R22

    Legend: To: Evaporating temperature in °C Qo: Cooling capacity in W RGT = 20°C Tc: Condensing temperature in °C Pe: Power input in kW Subcooling =0 K Capacity data at other conditions are available in the datasheets at: www.danfoss.com/odsg FRCC.PC.015.A8.02...

  • Page 91: R134A

    Legend: To: Evaporating temperature in °C Qo: Cooling capacity in W RGT = 20°C Tc: Condensing temperature in °C Pe: Power input in kW Subcooling =0 K Capacity data at other conditions are available in the datasheets at: www.danfoss.com/odsg FRCC.PC.015.A8.02...

  • Page 92: R407A

    Qo: Cooling capacity in W RGT = 20°C Tc: Condensing temperature in °C Pe: Power input in kW Subcooling =0 K Capacity data at other conditions are available in the datasheets at: www.danfoss.com/odsg Only motor code4.code5 of MLZ are qualified with R407A FRCC.PC.015.A8.02...

  • Page 93: R407F

    Qo: Cooling capacity in W RGT = 20°C Tc: Condensing temperature in °C Pe: Power input in kW Subcooling =0 K Capacity data at other conditions are available in the datasheets at: www.danfoss.com/odsg Only motor code4.code5 of MLZ are qualified with R407F FRCC.PC.015.A8.02...

  • Page 94: Dimensions

    Application Guidelines Dimensions MLZ/MLM015-019-021-026 Brazed Rotolock 4x Ø19.0 4 x Ø 19 111.5 suction line 34° 31° 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 95: Mlz/Mlm030-038-042-045-048

    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 96: Mlz/Mlm058-066-076

    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 97: 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 98: 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 380-415 V - 3 ph...

  • Page 99: Three Phase Electrical Characteristics

    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 100: 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 101: 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 102: 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 103: Approvals And Certifications

    All MLZ models (European Directive) Models with motor code 1, 5 except when using (Underwriters Laboratories) PTCSCR system Other approvals / certificates Contact Danfoss Conformity to directives Pressure equipment directive 2014/68/EU Low voltage directive 2014/35/EU Machinery directive 2006/42/EC Products MLZ / MLM 015 to 076...

  • Page 104: Refrigerant And Lubricants

    Application Guidelines Operating conditions • Refrigerant and lubricants The scroll compressor application range is • Motor supply influenced by several parameters which need to • Compressor ambient temperature be monitored for a safe and reliable operation. • Application envelope (evaporating These parameters and the main recommendations for good practice and safety temperature, condensing temperature, return...
  • Page 105 According to and rise in the evaporator. Therefore when EN12900 recommendations, Danfoss Commercial speaking about evaporating and condensing Compressors use dew point temperatures for temperatures, it is important to indicate whether selection tables and application envelopes etc.

  • Page 106: Motor Supply

    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 107 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.A8.02...
  • Page 108 Application Guidelines Operating conditions MLZ015~066 - R407A SH:10K RGT: 20°C Evaporating temperature (°C) MLZ076 - R407A SH:10K RGT: 20°C Evaporating temperature (°C) FRCC.PC.015.A8.02...
  • Page 109 Application Guidelines Operating conditions MLZ015~066 - R407F SH:10K RGT: 20°C Evaporating temperature (°C) MLZ076 - R407F SH:10K RGT: 20°C Evaporating temperature (°C) FRCC.PC.015.A8.02...

  • Page 110: Maximum Discharge Gas Temperature

    DGT compressor! protection is required (n°1) and where it is not (n°2). A DGT accessory is available from Danfoss: refer to section “Spare parts & accessories”. MLZ / MLM R22 - SH 11K Example 1 ...

  • Page 111: High And Low Pressure Protection

    12 starts per hour can reduce the service life depends upon system design. of the motor-compressor unit. A one-minute time out is recommended. Danfoss recommends a restart delay timer to limit compressor cycling. The system must be designed in a way that provides a minimum compressor running time...

  • Page 112: 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 113: Refrigerant Charge Limit

    More detailed information can be found in the place in the compressor and/or the suction line instead of the evaporator. System design must be paragraphs hereafter. Please contact Danfoss for such that the amount of liquid refrigerant in the any deviation from these guidelines.
  • Page 114 Belt-type crankcase heater accessories are Optimum location area available from Danfoss (see section “Spare parts & Accessories”). The heater must be energized whenever the compressor is off. Provide separate electrical supply for the heaters so that they remain energized even when the machine is out of service (eg.

  • Page 115: 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 116: Low Ambient Application

    Several possible solutions are discharge line. available to prevent the risk of compressor to For further information, please contact Danfoss. vacuum and low pressure differential between the suction and discharge pressures. Scroll and reciprocating...

  • Page 117: 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 118: 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. 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 119: 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 120: 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 121 Remaining flux would cause corrosion of the contact the product manufacturer or distributor. tubing. For specific applications not covered herein, please contact Danfoss for further information. Ensure that no flux is allowed to enter into the tubing or compressor. Flux is acidic and can cause Brazed...

  • Page 122: Vacuum Evacuation And Moisture Removal

    50 ppm end point dryness After burn out, remove & replace the liquid (EPD). Danfoss recommends DCL (solid core) line filter drier and install a Danfoss type DAS burnout drier of the appropriate capacity. Refer driers for the MLM compressor (R22 with...

  • Page 123: Ordering Information And Packaging

    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 124: 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 125: Industrial Pack

    Application Guidelines Ordering information and packaging 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 126: Spare Parts & Accessories

    Application Guidelines Spare parts & accessories Run capacitors for PSC wiring Type Code n° Description Application Packaging Pack size 80 μF 120Z0052 PSC wiring Run Capacitor 80 μF, 60HZ,Motor Code 1 : MLZ/MLM042 Multipack "50Hz,Motor Code 5: MLZ/MLM019-021-26 70 μF 120Z0051 PSC wiring Run Capacitor 70 μF, Multipack...
  • Page 127 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 128 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 130 Our products can be found in a variety of applications such as rooftops, chillers, residential air conditioners, heatpumps, coldrooms, supermarkets, milk tank cooling and industrial cooling processes. http://cc.danfoss.com Danfoss Commercial Compressors, BP 331, 01603 Trévoux Cedex, France | +334 74 00 28 29 © Danfoss | DCS(CC) | 2016.12 FRCC.PC.015.A8.02...
  • Page 131 MAKING MODERN LIVING POSSIBLE Application guidelines Danfoss scroll compressors SM - SY - SZ R22 - R407C - R137a - R404A - R507A - 50 - 60 Hz www.danfoss.us.com...
  • Page 133 Terminal box temperature ..........17 Compressor mounting ............ 42 Three phase electrical characteristics ......17 Compressor holding charge .......... 43 Danfoss MCI soft-start controller ......... 18 System cleanliness ............43 General wiring information ........... 19 Tubing ..................43 Motor protection ............... 21 Brazing and soldering ............

  • Page 134: 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 135 In addition to the existing SM range compressors Part protection and assembly reduces internal leaks and increases life durability. previously available, Danfoss is completing its range with 3 compressors. Improved part isolation reduces greatly acoustic The new SM112-124-147 and SZ147 compressors levels.

  • Page 136: Compressor Model Designation

    "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 nameplate. documentation FRCC.PC.005. Nomenclature Family, lubricant...

  • Page 137: Technical Specifications

     Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60Hz  Net weight with oil charge Data given for code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/ODSG Rating conditions...

  • Page 138: 60 Hz Data

     Displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60Hz  Net weight with oil charge Data given for code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/ODSG Rating conditions...

  • Page 139: Dimensions

    Application guidelines Dimensions SM/SZ 084-090-100-110-120 Ø 9.45 A: 18.29 Ø 9.06 B: 20.26 A: 20 B: 21.97 A: 15.02 4.54 B: 16.99 A: 9.92 B: 11.35 Ø 10 A: 11.60 B: 13.02 A: 5.59 B: 7.02 3.95 3.91 11.18 4 holes Ø 0.76 8.66 7.29 A: 6.42...

  • Page 140: Sm 112-124-Sm/Sz147

    Application guidelines Dimensions SM 112-124-SM/SZ147* SM/SZ147 code 3 * except code 3 Ø 8.82 Ø 8.80 Ø 8.69 Ø 9.57 A: 21.06 B: 21.26 21.26 A: 10.84 B: 20.04 20.04 4.61 6.18 Ø 9.57 10.94 10.94 7.44 6.06 3.98 3.98 9.06 9.06 4 holes...

  • Page 141: Sm/Sz 148-161

    Application guidelines Dimensions SM/SZ 148-161 SM 148-161 code 3 SM 148-161 code 4 Ø 10.47 Ø10.47 14.79 4.54 7.79 23.27 17.33 17.33 10.65 7.87 7.09 3.92 3.92 4 holes 6.24 Ø 0.76 8.66 11.18 13.03 14.08 30° 7.36 8.23 3.89 7.32 8.66 All dimensions in inch...

  • Page 142: Sm/Sz 175-185 & Sy185

    Application guidelines Dimensions SM/SZ 175-185 & SY185 Brazed version Rotolock version Ø 10.47 Ø 10.08 26.69 7.80 25.25 20.81 Ø 12.45 9.34 7.09 4.33 13.60 4 holes 7.67 Ø 0.76 6.74 16.91 14.60 30° 9.39 6.57 7.76 7.09 7.96 7.32 All dimensions in inch 7.36 Grommet...

  • Page 143: Sy/Sz 240-300-380

    Application guidelines Dimensions SY/SZ 240-300-380 Brazed version Rotolock version Ø13.54 Ø13.54 Discharge 1”1/8 Discharge A&B: 1”1/8 C: 1”3/8 A: 27.2±2 B: 67.63±2 Ø13.11 Ø13.11 C: 28.58 A: 27.2±2 B: 67.63±2 A: 24.33 A: 24.33 B: 24.76 7.36 B: 24.76 C: 25.71 A: 18.88±1.2 Suction A: 1”1/2...

  • Page 144: Connection Details

    2’’ 1/8 SY/SZ 380 Discharge 1’’ 3/8 All Danfoss SM / SY / SZ scroll compressors come Oil sight glass equipped with a sight glass (1"1/8-18 UNF) which may be used to determine the amount and condition of the oil contained within the sump.

  • Page 145: Electrical Data, Connections And Wiring

    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 code 3 code 4 code 7 code 9...

  • Page 146: Ip Rating

    Application guidelines Electrical data, connections and wiring The terminal box is provided with 2 double SM/SZ 175-185 - J, K, P, S, U, W, Cover holding screw (x2) - Torque: 1.6 ft.lb X, Y versions knockouts for the power supply and 3 knockouts Terminal box for the safety control circuit.

  • Page 147: Terminal Box Temperature

    158°F. Consequently, if the compressor is installed in an enclosure, precautions must be will not be covered by Danfoss warranty. In the taken to avoid that the temperature around the same manner, cables must be selected in a way...
  • Page 148 77°F, the measured resistance must be corrected with following formula: Danfoss MCI soft-start The inrush current for the Danfoss scroll effects of high starting torque surges and costly controller compressors with motor code 4 (400V / 3 / 50Hz...

  • Page 149: General Wiring Information

    Application guidelines Electrical data, connections and wiring When the control voltage is applied to A1 - Input controlled soft start 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 150: Motor Protection

    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 SM/SZ175-185 (J, K, P, S, U, W, X, Y versions) Wiring diagram without pump-down cycle Wiring diagram with pump-down cycle Compressor models SY / SZ 240 - 300 - 380...
  • Page 151 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 115-125-160-175-185   Internal thermostat External overload protection Reverse vent.
  • Page 152 Application guidelines Electrical data, connections and wiring If any thermistor exceeds its response A red/green twin LED is visible on the module. temperature, its resistance increases above A solid green LED denotes a fault free condition. A blinking red LED indicates an identifiable fault the trip level (4,500 Ω) and the output relay then trips -ie.

  • Page 153: Voltage Unbalance

    Application guidelines Electrical data, connections and wiring The lockout may be cancelled by resetting the Compressor power mains (disconnect L-N) for approximately start 5 sec. Phase monitoring Phase sequence module logic Voltage unbalance The operating voltage limits are shown in the voltage unbalance is 2%.

  • Page 154: Approval And Certifications

    SM / SY / SZ models (European Directive) SM / SY / SZ All 60 Hz models (Underwriters Laboratories) Other approvals / certificates Contact Danfoss Pressure Equipment Products SM084 to 185 SZ084 to 185 & SY185 SY/SZ 240 to 380 Directive 97/23/EC Refrigerating fluids...

  • Page 155: Refrigerant And Lubricants

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

  • Page 156: Application Envelope At Dew Temperatures

    Application guidelines Operating conditions Motor supply SM / SY / SZ scroll compressors can be operated allowed within the indicated voltage ranges. In at nominal voltages as indicated on page 18. case of risk of under-voltage operation, special attention must be paid to current draw. Under-voltage and over-voltage operation is Compressor ambient SM / SY / SZ compressors can be applied from...
  • Page 157 Application guidelines Operating conditions SZ084 to 185 R134a S.H. = 20°F S.H. = 54°F SUPERHEAT Evaporating temperature (°F) SZ240 - 380 R134a S.H. = 20 °F S.H. = 54°F SUPERHEAT Evaporating temperature (°F) SZ084 to 185 R404A / R507A S.H. = 54°F SUPERHEAT S.H.

  • Page 158: Application Envelopes At Mean Temperatures

    When discussing DEW point temperatures. In these Selection and evaporating and condensing temperatures Application Guidelines, Danfoss Commercial Compressors displays temperatures as DEW therefore, it is important to indicate whether these are DEW point values or MEAN point point values.
  • Page 159 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 conditions Dew temperature Example for SZ 084 to 185 S.H.

  • Page 160: Discharge Temperature Protection

    Application guidelines Operating conditions Discharge temperature The discharge gas temperature must not exceed discharge temperature must be monitored protection 275°F. The discharge gas thermostat accessory kit during development test by the equipment manufacturer. (code 7750009) includes all components required 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 161: Cycle Rate Limit

    13 psi for R22. The compressor can be operated situations, for example 7 psi for R22. Cycle rate limit Danfoss recommends a restart delay timer to necessary, place an anti-short-cycle timer in the limit compressor cycling. The timer prevents control circuit, connected as shown in the wiring reverse compressor rotation, which may occur diagram section "Suggested wiring diagrams...

  • Page 162: 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 result. compressor for the application. If the compressor is not correct for the system, it will operate Essential piping design Proper piping practices should be employed to...

  • Page 163: Refrigerant Charge Limit

    Note: for special conditions such as low ambient temperature, low refrigerant load or brazed plate heat exchangers please refer to corresponding section "Specific application recommendations". More detailed information can be found in the paragraphs hereafter. Please contact Danfoss Technical Support for any deviation from these guidelines.
  • Page 164 Sump heater accessories are available from charge for compressors requires a crankcase Danfoss (see section "Accessories"). An LLSV may be used to isolate the liquid charge The quantity of refrigerant on the low pressure...

  • Page 165: Liquid Flood Back

    A continuous liquid flood back will cause oil dilution and, in extreme situations lead to lack Danfoss SM/SY/SZ scroll compressors can of lubrication and high rate of oil leaving the tolerate occasional liquid flood back. However compressor.

  • Page 166: Low Ambient Application

    "High and low pressure The Danfoss SM/SY/SZ scroll compressor requires levels during low loading periods. A minimum of Low ambient operations a minimum pressure differential of 87 to 102 psi 9 °F stable superheat is required.

  • Page 167: Low Load Operations

    Application guidelines Specific application recommendations Sump heaters are strongly recommended on will minimize refrigerant migration caused by Sump heaters the large temperature gradient between the all systems where the compressor is exposed to low ambient temperatures, especially split and compressor and the remainder of the system, remote condenser installations.
  • Page 168 275°F. The Danfoss SM/SY/SZ scroll compressor is a high position. At the same time, it is important that Discharge line...

  • Page 169: Water Utilizing Systems

    Application guidelines Specific application recommendations The use of a suction line accumulator is strongly the cycle switches back to a defrost cycle or to Suction line accumulator normal cooling operations. recommended in reversible cycle applications as a result of the possibility of a substantial quantity of liquid refrigerant remaining in the evaporator, Sustained and repeated liquid slugging and which acts as a condenser during the heating...

  • Page 170: Sound And Vibration Management

    * Bottom insulations are provided in surface sump heater accessories. Materials are UL approved and RoHS compliant. Data given for code 4 compressor, for full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/ODSG Stopping sound level SM / SY / SZ compressors are equipped with a...
  • Page 171 Because of the Danfoss’s unique design of a full-suction gas-cooled motor, compressor body The Danfoss SM / SY / SZ scroll compressor is insulation across its entire operating range is designed to be quiet and the frequency of the possible.

  • Page 172: Installation

    Compressor handling and Each Danfoss SM / SY / SZ scroll compressor is and between -31°F and 158°F when charged with storage equipped with two lift rings on the top shell.

  • Page 173: Compressor Holding Charge

    Nut * in place before shipping the unit with the * not supplied with compressor compressor installed. Note: for parallel assemblies see specific recommendations in Danfoss parallel application guidelines", FRCC.PC.005. Compressor holding charge Each compressor is shipped with a nominal dry plug first and the discharge plug afterwards.
  • Page 174 For specific temperature has been reached there as well, and applications not covered herein, please contact Danfoss Commercial Compressors for further then begin adding the brazing material. Move the torch evenly around the joint, in applying information.

  • Page 175: System Pressure Test

    Application guidelines Installation System pressure test Always use an inert gas such as nitrogen for an inflammable mixture. Do not exceed the pressure testing. Never use other gasses such as following pressures: oxygen, dry air or acetylene as these may form Maximum compressor test pressure (low side) SM/SZ 084 - 185: 363 psig SZ/SY240 - 380: 290 psig...

  • Page 176: Filter Driers

    50 ppm end point dryness (EPD). After burn out, remove & replace the liquid line filter drier and install a Danfoss type DAS burn- For new installations with SM/SY/SZ compressors out drier of the appropriate capacity. Refer to the...

  • Page 177: Commissioning

    Always use original Danfoss oil from new cans. based on the oil level in the compressor sight Compressor series glass.

  • Page 178: Ordering Information & Packaging

    Danfoss scroll compressors may be ordered following tables For tandem assemblies, please from Danfoss Commercial Compressors in either refer to the Danfoss parallel application guideline industrial packs or in single packs as listed in reference FRCC.PC.005. SM112-124-147 compressors in industrial pack Code no.
  • Page 179 Application guidelines Ordering information & packaging SM /SY compressors in single pack Code no. Compressor Motor Connections model protection 460/3/60 575/3/60 200-230/3/60 380/3/60 380-400/3/50 500/3/50 SM084 Brazed Internal SM084-3VI SM084-4VI SM084-7VI SM084-9VI SM090 Brazed Internal SM090-3VI SM090-4VI SM090-7VI SM090-9VI SM100 Brazed Internal SM100-3VI...
  • Page 180 Application guidelines Ordering information & packaging SZ compressors in single pack R407C / R134a Code no. Compressor Motor Connections model protection 460/3/60 575/3/60 200-230/3/60 380/3/60 380-400/3/50 500/3/50 SZ084 Brazed Internal SZ084-3VI SZ084-4VI SZ084-7VI SZ084-9VI SZ090 Brazed Internal SZ090-3VI SZ090-4VI SZ090-7VI SZ090-9VI SZ100 Brazed...
  • Page 181 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 SM110-112-120-124-147-148-161& 120Z0405 Solder sleeve adapter set (1"3/4~1"3/8), (1"1/4~7/8") Multipack SZ110-115-120-125-147-148-161 SM110-112-120-124-147-148-161& 7765006* Solder sleeve adapter set (1"3/4~1"3/8), (1"1/4~7/8") Multipack SZ110-115-120-125-147-148-161 7765028 Solder sleeve adapter set (2"1/4~1"5/8), (1"3/4~1"1/8)

  • Page 182: Packaging

    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 7953002 Rotolock nut,1"1/4 Models with 1"1/4 rotolock connection Industry pack 8153124 Rotolock nut,1"3/4 Models with 1"3/4 rotolock connection Multipack 7953003 Rotolock nut,1"3/4 Models with 1"3/4 rotolock connection...
  • Page 183 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, SM/SZ084-090-100-110-120-148-161-175- 8156138 Single pack...
  • Page 184 Sight glass with gaskets (black & white) All models Multipack 8156129 Gasket for sight glasse, 1"1/8 (white teflon) All models Multipack 7956005 Gasket for sight glass, 1"1/8 (white teflon) All models Multipack 8154001 Danfoss Commercial Compressors blue spray paint All models Single pack FRCC.PC.003.A5.22...
  • Page 186 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.

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