Danfoss VCH115, Application Manual

Page 1: ...www danfoss com Application Guide Scroll compressors VCH115 Single R410A...

Page 2: ...n 10 Compressor size 10 Compressor specification 10 Sound and vibration data 11 Sound level and acoustic hood 11 Operating envelope data 12 Operating envelope 12 Dimensions 14 VCH115 14 VCH115 with IP...

Page 3: ...mmissioning 47 Dismantle and disposal 48 Packaging 49 Single pack 49 Industrial pack 49 Frequency converter single pack 49 Ordering 50 Single pack 50 Industrial pack 50 Voltage code G 380 Volt 50 Acce...

Page 4: ...n indicates instructions to avoid reliability risk The purpose of this guideline is informational with the intent to educate customers as to how the compressors should properly function If you need an...

Page 5: ...essor is fitted with an injection port that enables to carry out vapor injection by connecting an intermediate exchanger This vapor injection will have three benefits Operating envelope enlargement by...

Page 6: ...come back directly into the compressor scroll set in case of power shortage The vapor injection must not be activated during defrost course Wet injection Whenever the vapor is no longer enough to coo...

Page 7: ...sor nameplate Code numbers for ordering are listed in section Ordering A N E G D 115 C H V Variable speed Family VCH scroll for China market Lubricant POE lubricant R410A refrigerant Swept volume in c...

Page 8: ...F 1996 2016 G July G 1997 2017 H August H 1998 2018 J September J 1999 2019 K October K 2000 2020 L November L 2001 2021 M December M 2002 2022 N 2003 2023 P 2004 2024 Q 2005 2025 R 2006 2026 S 2007 2...

Page 9: ...andardisation of refrigerants and lubricants Refrigerant cost Refrigerant availability R410A R410A is a HFC blend R32 50 R125 50 with a zero Ozone Depletion Potential ODP 0 and a Global Warming Potent...

Page 10: ...olselector 2 Compressor specification Table 3 Compressor specification Com pressor model Swept volume Displacement Oil charge Net weight 30 rps 60 rps 90 rps 120 rps 140 rps cm3 rev cu in rev m h cu f...

Page 11: ...bove sources Sound level and acoustic hood Model Frequency RPS Without accoustic hood dBA Acoustic hood code VCH115 120 89 120Z0850 VCH115 with IP54 E Box 120 89 120Z0897 NOTE Nominal sound power for...

Page 12: ...temperature C Evaporating temperature C 5 10 15 20 25 30 35 40 45 50 55 60 65 70 40 35 30 25 20 15 10 5 0 5 10 15 20 25 30 30 140rps 40 140rps 40 120rps 40 120rps Wet injection area Condensing tempera...

Page 13: ...range low side 1 2 13 4 17 194 Working pressure range high side 9 8 41 6 142 3 603 6 Maximum high pressure safety switch setting 44 638 Minimum low pressure safety switch setting 1 14 5 Danfoss Climat...

Page 14: ...4 L1 L2 L3 L4 Outline drawing number mm in mm in mm in mm in mm in mm in mm in mm in mm in VCH115 224 3 8 83 291 4 11 47 485 4 19 11 520 9 20 51 353 4 13 9 231 9 09 231 9 09 190 5 7 5 171 1 6 74 85602...

Page 15: ...3 H4 L1 L2 L3 L4 Outline drawing number mm in mm in mm in mm in mm in mm in mm in mm in mm in VCH115 with IP54 E Box 224 3 8 83 291 4 11 47 485 4 19 11 520 9 20 51 353 4 13 9 231 9 09 231 9 09 190 5 7...

Page 16: ...nly They are copper plated steel connections Design compressor mounting Grommets Compressors must be mounted with flexible grommets and metal sleeve delivered with compressor The grommets attenuate th...

Page 17: ...r speed variation leads to challenges that must be addressed by unit design The first challenge is linked to part of the load operation Unit design must ensure that oil is returning back to the compre...

Page 18: ...trical fittings must be used on electrical box s knockouts to protect against accidental contact with electrical parts inside Motor protection VCH scroll compressors are not equipped with an internal...

Page 19: ...eter 2 12 6 mm diameter 3 2 5 mm diameter 4 1 0 mm diameter 5 dust protected 6 dust tight Second characteristic numeral Against ingress of water with harmful effects 0 non protected 1 vertically dripp...

Page 20: ...essor T1 T2 T3 and drive terminals U V W matching the drive will provide correct phase supply to the compressor and reverse rotation will be not possible CDC100 terminal U to VCH terminal T1 CDC100 te...

Page 21: ...f supply voltage Inputs 2 STO Protection functions Over current protection low high current handling Compressor functions Motor protection compressor ramp up down control NOTE This compressor is equip...

Page 22: ...ons Electrical connections Wire sizes 1 2 3 4 CC 000193 5 Power input From network to drive Circuit breaker From drive to to compressor contactor Scroll compressors VCH115 Frequency converter Danfoss...

Page 23: ...from the mains the inrush peak reaches a level which is only a few percent more than the rated nominal current Drive installation Installation environment requirements Ambient temperature in the range...

Page 24: ...utomatically derates the speed and the maximum allowed output current to reduce the internal heat This can cause the compressor to trip Temperature during storage transport 35 70 C Introduction to EMC...

Page 25: ...stance 500 K Power OFF the unit Earth ground fault Disconnect power cable at compressor electrical box Perform an insulation resistance test on the compressor with megger tester 500V Replace compresso...

Page 26: ...efer to the Operating Instructions Return the drive for inspection Probably not a drive nor compressor problem Probable that the drive must be returned for inspection if under warranty Power OFF power...

Page 27: ...Analog input Analog input 1 RS485 2 RS485 3 GND R S T PE U V W PE 3 Phase Power input 50Hz Motor output LCP CDC100 CC 000200 STO function If STO function is configured internal power supply can be use...

Page 28: ...otection can be done either by the drive or the unit controller The following table describes the parameters to adjust depending on which short cycle protection is selected Table 15 Short cycle protec...

Page 29: ...ndition The feedback is typically via modbus By default alarms are reset automatically after 30s and the compressor restarts If the specified number of automatic resets 10x is reached within 10 minute...

Page 30: ...witch Following flow chart describes the strongly suggested sequence by Danfoss Time and pressure difference have to be fine tuned during system qualification EXV Opening degree and time have to be se...

Page 31: ...m 0 to 100 Start in low load and ignore demand signal for the first 5 minutes and then smooth demand signal Very frequent start and stop request Ignore stop request for the first 5 min Very frequent c...

Page 32: ...or placed between drive and compressor Condensing temperature C Evaporating temperature C 5 10 15 20 25 30 35 40 45 50 55 60 65 70 40 35 30 25 20 15 10 5 0 5 10 15 20 25 30 30 140rps 40 140rps 40 120r...

Page 33: ...perations beyond its specific application envelope example Condensing temperature C Evaporating temperature F Condensing temperature F CC 0045 Evaporating temperature C 40 35 30 25 20 15 10 5 0 5 10 1...

Page 34: ...erature of 135 C 275 F the discharge gas thermostat kit code 7750009 or the discharge temperature sensor could be used Wet injection discharge gas temperature protection refer to section Introduction...

Page 35: ...ed range from 30rps 1800rpm to 120rps 7200rpm Safeties required High pressure switch Low pressure switch Discharge gas thermostat set 135 C 275 F if necessary see Discharge temperature protection Driv...

Page 36: ...keep default value Envelope control The unit controller continuously measures evaporating and condensing temperatures as well as maintains compressor speeds according to specific zone restrictions Con...

Page 37: ...speed by pass is adjustable in the frequency converter in order to avoid some frequency ranges Four by pass ranges are adjustable and settings can be made in parameter group 4 6x Ensure that there is...

Page 38: ...e or full in oil sight glass Compressor with oil level sensor no oil level sensor trip If oil return test fails Check if potential oil trap in the system Adjust oil management parameters to optimize o...

Page 39: ...as a condenser do not place it in the airflow or oversize it If airflow is unavoidable the oil separator must be insulated Some separators require an initial oil charge to float the needle valve float...

Page 40: ...il temperature sensor Inserted type oil temperature sensor such as PT100 should be placed the position as below picture Surface temperature thermal couple should be pasted on the bottom surface of com...

Page 41: ...on ditions After defrost Oil superheat must not be more than 60 sec below 12K 21 6 F Check defrost logic 4 Way valve control and defrost logic Add suction accumulator Expansion valve Role of expansion...

Page 42: ...r model Refrigerant charge limit Kg lb VCH115 13 29 Test and components required per application Table 23 Test and components required per application Application Components required Non Split 1 Split...

Page 43: ...ly recommended to the heater to a secured power supply in order to maintain migration protection Sump crankcase heater installation is mandatory When compressor is put on hold crankcase heater should...

Page 44: ...compressor in a manner that it is not corrosive or flammable atmosphere between 35 C to 70 C 31 F to 158 F when charged with nitrogen and between 35 C 31 F and 55 C 131 F when charged with R410A refr...

Page 45: ...opper tubing Opened compressor must not be exposed to air more than 20 minutes to avoid moisture captured by PVE oil Brazing procedure Brazing operations must be performed by qualified personnel Make...

Page 46: ...n valve is present on the discharge line and maximum pressurizing speed must be respected to ensure pressure equalization between LP and HP side over scroll elements 1 An external non return valve is...

Page 47: ...ctions must be followed Motor 1800VDC for code G for 1 seconds must be applied Further reduce test voltage if do more Hipot test The current leakage must be below 5mA Drive Compressor not connected R...

Page 48: ...dings Suction and discharge pressure are within acceptable levels Crankcase heaters must be energized at least 6 hours in advance to remove refrigerant Correct oil level in compressor sump indicates p...

Page 49: ...eight Width Depth Gross Weight Static stacking pal lets mm mm mm kg VCH115 8 1150 950 750 552 2 Frequency converter single pack Table 28 Frequency converter CDC100 single pack Drive supply voltage Dri...

Page 50: ...ox VCH115DGFNA 120G0351 Industrial pack Table 30 Industrial pack Compressor model Technical Name Motor code G 380V 3ph 50Hz VCH115 VCH115DGENA 120G0320 VCH115 with IP54 E Box VCH115DGFNA 120G0352 Volt...

Page 51: ...cal box cover VZH088 G H VZH117 G H Single Pack 1 120Z0151 Electrical box cover VZH088 117 J Single Pack 1 Lubricant oils Type Code no Description Application Packaging Pack size 160SZ 7754023 POE lub...

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