Related Manuals for Danfoss R134a
Summary of Contents for Danfoss R134a
- Page 1 Application guidelines Danfoss scroll compressors SM SY SZ R22 - R407C - R134a - R404A - R507A - R513A - 50 - 60 Hz http://cc.danfoss.com...
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Page 3: Table Of Contents
Installation ..........42 Terminal box temperature ........17 Compressor handling and storage ....42 Three phase electrical characteristics .... 18 Compressor mounting .........42 Danfoss MCI soft-start controller ..... 19 Compressor holding charge ......43 General wiring information ........20 System cleanliness ..........43 Motor protection............22 Tubing ................43... -
Page 4: Compressor Model Designation
Internal overload protector SY: Scroll, POE lubricant, R22/R417A/ : brazed S 112-124-147 R407C/R134a/R513A** : brazed SZ: Scroll, POE lubricant, R407C - R134a Internal thermostat S175-185 : rotolock (R404A, R507A for SZ084 to SZ185, R513A for SZ148 to SZ185 **) : brazed... -
Page 5: 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 6: 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 7: Technical Specifications
Condensing temperature 54.4 °C 50 °C 54.4 °C (dew point) Sub-cooling 8.3 K 10 K 8.3 K Superheat 11.1 K 11.1 K Subject to modification without prior notification For regular updates and detailed capacities, please refer to Coolselector®2 www.coolselector.danfoss.com AB237986441643en-010801... -
Page 8: 60 Hz Data
7.2 °C (dew point) Condensing temperature 54.4 °C 54.4 °C (dew point) Sub-cooling 8.3 K 8.3 K Superheat 11.1 K 11.1 K Subject to modification without prior notification For regular updates and detailed capacities, please refer to Coolselector®2 www.coolselector.danfoss.com AB237986441643en-010801... -
Page 9: 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 10: Sm 112-124-Sm/Sz147
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 11: Sm/Sz 148-161
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 12: Sm/Sz 175-185 & Sy185 R And C Version
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 13: 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 14 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 A: 479.5 ±1.2 Suction...
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Page 15: Connection Details
Discharge 1" 3/8 Oil sight glass All Danfoss SM / SY / SZ scroll compressors come equipped with a sight glass (1"1/8-18 UNEF) which may be used to determine the amount and condition of the oil contained within the sump. -
Page 16: 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 Motor voltage code 3 code 4 code 6... -
Page 17: Ip Rating
Any compressor damage related to this 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 18: Three Phase Electrical Characteristics
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 SM124 0.27 200-230V/3 ph/60 Hz SM/SZ147 0.24 SM/SZ148... -
Page 19: Danfoss Mci Soft-Start Controller
25°C, the measured Coefficient a = 234.5 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 20: 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 21 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...
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Page 22: 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 23: 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) 80ms 920ms 40ms... -
Page 24: Approval And Certifications
SM / SY / SZ scroll compressors comply with the Certificate are listed on: Documentation for certificates following approvals and certificates. Commercial Compressor | Danfoss CE 0062 or CE 0038 or CE 0094 SM / SY / SZ models (European Directive) -
Page 25: Operating Conditions
R22. mixture and has a temperature glide of 7.4°C R134a R134a is an HFC refrigerant and has zero ozone applications with high evaporating and high depletion potential (ODP = 0). R134a is a pure condensing temperatures, R134a is the ideal refrigerant and has zero temperature glide. -
Page 26: Motor Supply
• Maximum superheat of 30 K The figures below show the operating envelopes • Minimum and maximum evaporating and for refrigerants R22, R407C, R134a, R404A, R507 condensing temperatures as per the operating and R513A. envelopes. SM084 to 185 SY185 to 380 S.H. - Page 27 Operating conditions SZ084 to 185 (except SZ147) R134a S.H. = 11.1 K S.H. = 30 K SUPERHEAT Evaporating temperature (°C) SZ147 R134a S.H. = 11.1 K Evaporating temperature (°C) SY240 to 380 R134a S.H. = 11.1 K S.H. = 30 K SUPERHEAT Evaporating temperature (°C)
- Page 28 Application Guidelines Operating conditions SZ148-185 / SY185 R513A SH=10K SH=30K Evaporating temperature (°C) 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.
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Page 29: Application Envelopes At Mean Temperatures
When discussing temperatures. In these Selection and Application evaporating and condensing temperatures Guidelines, Danfoss Commercial Compressors therefore, it is important to indicate whether displays temperatures as DEW point values. these are DEW point values or MEAN point values. - Page 30 Application Guidelines Operating conditions 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. = 30 K SUPERHEAT S.H. = 11.1 K Evaporating temperature (°C) Mean temperature Mean temperature conditions Example for SZ 084 to 185...
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Page 31: Discharge Temperature Protection
No risk of operation beyond the application envelope. DGT protection required. No DGT protection required. Maximum Operating High evaporating temperature above map border compressor failure. Hence Danfoss recommend Pressure (MOP) introduce reliability risks for compressors, such as customer to use expansion devices (EXV or TXV) protection high oil dilution rate in oil sump, leading to low with MOP function. -
Page 32: Cycle Rate Limit
Minimum low pressure pump-down switch setting ** *LP safety switch shall never be bypassed and shall have no time delay. ** Recommended pump-down switch settings: 1.5 bar (R22, R407C, R404A) or 1 bar (R134a) below nominal evaporating pressure. Note that these two different low pressure full time under such condition. -
Page 33: System Design Recommendations
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 34: Refrigerant Charge Limit
Note: for special conditions such as low ambient temperature, low refrigerant load or brazed plate heat exchangers please refer to section “Low ambient temperature” More detailed information can be found in the paragraphs hereafter. Please contact Danfoss Technical Support for any deviation from these guidelines. - Page 35 Sump heater accessories are available from charge for compressors requires a crankcase Danfoss (see section “Accessories”). Liquid line solenoid valve An LLSV may be used to isolate the liquid charge The quantity of refrigerant on the low pressure...
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Page 36: Liquid Flood Back
A continuous liquid flood back will cause oil dilution and, in extreme situations lead to lack of lubrication and high rate of oil leaving the Danfoss SM/SY/SZ scroll compressors can tolerate occasional liquid flood back. However system compressor. Liquid flood back test - Repetitive liquid... -
Page 37: Low Ambient Application
“High and low pressure Low ambient operations The Danfoss SM / SY / SZ scroll compressor levels during low loading periods. A minimum of requires a minimum pressure differential of 6 to 7 5 K stable superheat is required. -
Page 38: 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 39: 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... -
Page 40: 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 41 Because of the Danfoss scroll’s unique design of a full-suction gas-cooled motor, compressor The Danfoss SM / SY / SZ scroll compressor is body insulation across its entire operating range is possible. Acoustic hoods are available from designed to be quiet and the frequency of the sound generated is pushed into the higher Danfoss Commercial Compressors as accessories.
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Page 42: Installation
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 43: Compressor Holding Charge
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... -
Page 44: System Pressure Test
For specific applications not covered herein, then begin adding the brazing material. Move please contact Danfoss Commercial Compressors the torch evenly around the joint, in applying for further information. System pressure test Always use an inert gas such as nitrogen for an inflammable mixture. -
Page 45: Leak Detection
For new installations with SM/SY/SZ compressors After burn out, remove & replace the liquid with polyolester oil, Danfoss recommends using line filter drier and install a Danfoss type DAS the Danfoss DML (100% molecular sieve) solid burn-out drier of the appropriate capacity. -
Page 46: Insulation Resistance And Dielectric Strength
1 or 2% of the total system refrigerant charge (in weight) can be used to roughly define Always use original Danfoss oil from new cans. the required oil top-up quantity but in any case Compressor series... -
Page 47: Ordering Information & Packaging
* Nbr = number of compressors per pallet Ordering information 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. AB237986441643en-010801... - Page 48 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 49 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 50 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 51 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...
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Page 52: 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 53 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 54 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 55 Type Code No Description Application Packaging Size 160SZ 7754023 POE lubricant, 160SZ, 1 litre can SZ with R407C, R134a, R404A, R513A Multipack 160SZ 120Z0571 POE lubricant, 160SZ, 2.5 litre can SZ with R407C, R134a, R404A, R513A Multipack 320SZ 7754121 POE lubricant, 320SZ, 1 litre can...
- Page 56 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) | 2020.12 AB237986441643en-010801...