Danfoss VZH Series Application Manuallines
  1. Manuals
  2. Brands
  3. Danfoss Manuals
  4. Air Compressor
  5. VZH Series
  6. Application manuallines

Danfoss VZH Series Application Manuallines

Inverter scroll compressors
Hide thumbs Also See for VZH Series:
Table of Contents

Advertisement

Quick Links

Application guidelines
Inverter scroll compressors
VZH088-117-170
single and manifold
R410A
http://danfoss.us.com/

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the VZH Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Danfoss VZH Series

Summary of Contents for Danfoss VZH Series

  • Page 1 Application guidelines Inverter scroll compressors VZH088-117-170 single and manifold R410A http://danfoss.us.com/...
  • Page 3 Application guidelines Content Single compressors VZH088-117-170 - single compressors ........................4 VZH088-117-170 - hybrid manifolding ........................ 74 FRCC.PC.023.A7.22...

  • Page 4: Table Of Contents

    Application guidelines VZH088-117-170 single compressors Single compressors VZH scroll specificities .........................6 Variable speed compressors ........................7 Compressor size ......................................7 Frequency converter variants .................................7 Compressor and frequency converter combinations ........................7 Nomenclature and specifications ......................8 Compressor nomenclature ..................................8 Frequency converter nomenclature ..............................8 Technical specifications ........................9 Compressor specifications ..................................9 Frequency converter specifications ..............................9 Oil injection control ....................................9...
  • Page 5 Application guidelines VZH088-117-170 single compressors Single compressors Operating conditions .........................43 Application envelopes .................................... 43 Short cycle timer function ..................................43 Discharge gas temperature protection function .......................... 44 Discharge gas thermostat ..................................44 Oil return management function (single compressor) ....................... 45 Oil return management in hybrid manifolding ..........................

  • Page 6: Vzh Scroll Specificities

    Application guidelines VZH scroll specificities Single compressors Reinforced high grade cast iron scroll set. 2 ranges for high and low pressure ratio High speed oil circulation minimized by separating oil and gas flows with a sump oil return tube A patented oil injection system ensures optimal efficiency at low speed by improving scroll set sealing...

  • Page 7: Variable Speed Compressors

    Application guidelines Variable speed compressors Single compressors Compressor size Variable speed offers more flexibility in 3. Best Seasonal Efficiency Ratio: Select a compressor selection than fixed speed compressor size which achieves the minimum system cooling demand at its minimum speed. compressors.

  • Page 8: Nomenclature And Specifications

    Application guidelines Nomenclature and specifications Single compressors Compressor nomenclature Variable speed Evolution index Motor protection type Family N: no internal motor protection VZH scroll (protection by drive) Lubricant Equipement version POE lubricant, R410A A: brazed connections, single version refrigerant B: brazed connections, manifold version Oil sight glass Oil level switch Swept volume...

  • Page 9: Technical Specifications

    Application guidelines Technical specifications Single compressors Compressor specifications Displacement Swept Oil charge Net weight Compressor model volume 25 rps 50 rps 60 rps 100 rps (oz) (lbs) (cu.in/rev) (cu.ft/h) (cu.ft/h) (cu.ft/h) (cu.ft/h) VZH088 5.39 1088 VZH117 7.13 1434 VZH170 10.39 1045 1261 1914...

  • Page 10: Capacity Tables

    Application guidelines Technical specifications Single compressors Capacity at EN12900 rating conditions - High pressure ratio - VZH088AJ - VZH117AJ - VZH170AJ 19800 1.57 24800 1.66 30800 1.73 37900 1.75 46100 1.65 17500 2.21 22300 2.18 28000 2.21 34500 2.25 42100 2.24 50700 2.14...
  • Page 11 Application guidelines Technical specifications Single compressors Capacity at ARI rating conditions - High pressure ratio - VZH088AJ - VZH117AJ - VZH170AJ 21100 1.57 26500 1.66 32900 1.73 40400 1.75 49100 1.65 18900 2.21 24100 2.18 30200 2.21 37200 2.25 45300 2.24 54600 2.14...
  • Page 12 Application guidelines Technical specifications Single compressors Capacity at EN12900 rating conditions - High pressure ratio - VZH088AG - VZH117AG - VZH170AG 19900 1.55 25000 1.63 31100 1.70 38200 1.72 46500 1.62 17600 2.17 22500 2.14 28200 2.17 34800 2.21 42400 2.21 51100 2.10...
  • Page 13 Application guidelines Technical specifications Single compressors Capacity at ARI rating conditions - High pressure ratio - VZH088AG - VZH117AG - VZH170AG 21300 1.55 26700 1.63 33100 1.70 40700 1.72 49500 1.62 19100 2.17 24300 2.14 30400 2.17 37500 2.21 45700 2.21 55000 2.10...
  • Page 14 Application guidelines Technical specifications Single compressors Capacity at EN12900 rating conditions - High pressure ratio - VZH088AH - VZH117AH - VZH170AH 19900 25000 31100 38200 46500 17600 22500 28200 34800 42400 51100 60000 15200 19600 24800 30800 37600 45400 53300 20700 25800 31700...
  • Page 15 Application guidelines Technical specifications Single compressors Capacity at ARI rating conditions - High pressure ratio - VZH088AH - VZH117AH - VZH170AH 21300 26700 33100 40700 49500 19100 24300 30400 37500 45700 55000 64500 16700 21600 27200 33700 41100 49600 58100 23300 29100 35700...
  • Page 16 Application guidelines Technical specifications Single compressors Capacity at EN12900 rating conditions - Low pressure ratio - VZH088BJ - VZH117BJ - VZH170BJ 22100 1.84 27200 1.74 33300 1.65 40300 1.58 48500 1.54 18500 2.47 23300 2.39 28900 2.30 35400 2.22 42900 2.14 51500 2.08...
  • Page 17 Application guidelines Technical specifications Single compressors Capacity at ARI rating conditions - Low pressure ratio - VZH088BJ - VZH117BJ - VZH170BJ 23600 1.84 29100 1.74 35500 1.65 43000 1.58 51600 1.54 20000 2.47 25200 2.39 31200 2.30 38100 2.22 46200 2.14 55400 2.08...
  • Page 18 Application guidelines Technical specifications Single compressors Capacity at EN12900 rating conditions - Low pressure ratio - VZH088BG - VZH117BG - VZH170BG 22200 1.81 27400 1.71 33500 1.62 40600 1.55 48900 1.51 18700 2.43 23500 2.35 29100 2.26 35600 2.18 43200 2.10 51900 2.04...
  • Page 19 Application guidelines Technical specifications Single compressors Capacity at ARI rating conditions - Low pressure ratio - VZH088BG - VZH117BG - VZH170BG 21800 1.85 26400 1.76 31800 1.67 37900 1.60 45000 1.54 53000 1.51 18300 2.46 22700 2.39 27700 2.31 33400 2.24 39900 2.16...
  • Page 20 Application guidelines Technical specifications Single compressors Capacity at EN12900 rating conditions - Low pressure ratio - VZH088BH - VZH117BH - VZH170BH 22200 27400 33500 40600 48900 18700 23500 29100 35600 43200 51900 60900 19500 24600 30500 37400 45400 53500 25100 31300 38400 45700...
  • Page 21 Application guidelines Technical specifications Single compressors Capacity at ARI rating conditions - Low pressure ratio - VZH088BH - VZH117BH - VZH170BH 21800 26400 31800 37900 45000 53000 18300 22700 27700 33400 39900 47400 55900 65400 19000 23600 28800 34900 41700 49600 58400 24100...

  • Page 22: Dimensions

    Application guidelines Dimensions Single compressors VZH088-G/H single version VZH088-G/H manifolded version Ø8.82 Ø8.82 Discharge Discharge 7/8" 7/8" Ø8.69 Ø8.69 Suction Suction 1"1/8 1"1/8 18.49 18.49 max. max. 17.17 17.17 3.66 3.66 Ø9.57 Ø243 8.64 8.64 5.83 5.83 2.35 3.1 0.59 with 7.08 0.59 with compression...

  • Page 23: Vzh088-J Single Version

    Application guidelines Dimensions Single compressors VZH088-J single version VZH088-J manifolded version Ø8.82 Ø8.82 Discharge Discharge 7/8" 7/8" 18.49 max. Ø8.69 8.69 Suction Suction 1"1/8 1"1/8 18.49 max. 17.17 17.17 6.18 6.18 Ø9.57 Ø9.57 8.64 8.64 3.62 3.62 2.35 7.16 0.59 with 0.59 compression with compression...

  • Page 24: Vzh117-G/H Single Version

    Application guidelines Dimensions Single compressors VZH117-G/H single version VZH117-G/H manifolded version Ø8.82 Discharge Ø8.82 7/8" Discharge 7/8" Ø8.69 Suction Ø8.69 Suction 1"3/8 1"3/8 20.75 20.75 max. max. 19.43 3.66 19.43 3.66 Ø9.57 Ø9.57 10.33 10.33 7.68 7.68 3.37 3.37 2.27 7.08 0.57 with 7.16...

  • Page 25: Vzh117-J Single Version

    Application guidelines Dimensions Single compressors VZH117-J single version VZH117-J manifolded version Ø8.82 Discharge Discharge Ø8.82 7/8" 7/8" Ø8.69 Ø8.69 Suction Suction 1"3/8 1"3/8 20.75 20.75 max. max. 19.43 19.43 6.18 6.18 Ø9.57 Ø9.57 10.33 10.33 5.47 5.47 3.37 3.37 2.27 0.57 with 7.16 0.57 with...

  • Page 26: Vzh170-G/H Single Version

    Application guidelines Dimensions Single compressors VZH170-G/H single version VZH170-G/H manifolded version Ø10.47 Ø10.47 Discharge Discharge 1"1/8 1"1/8 Ø10.12 Ø10.12 25.94 25.94 max. max. Suction Suction 24.29 1"5/8 24.29 1"5/8 20.9 20.9 Ø 12.52 11.87 11.87 Ø12.52 8.27 8.27 5.96 5.96 3.64 3.64 3.01...

  • Page 27: Vzh170-J Single Version

    Application guidelines Dimensions Single compressors VZH170-J single version VZH170-J manifolded version Ø10.47 Ø10.47 Discharge Discharge 1"1/8 1"1/8 Ø10.12 Ø10.12 25.94 25.94 max. Suction max. Suction 24.29 1"5/5 1"5/8 24.29 10.9 10.9 20.9 20.9 11.87 11.87 Ø12.52 Ø12.52 6.77 5.96 6.77 5.96 3.64 3.01...

  • Page 28: Sight Glass / Oil Level Switch

    This connection is VZH088 Rotolock 1"3/4 used when compressors are mounted in parallel. VZH117 Rotolock 1"3/4 Contact Danfoss for further details and refer to VZH170 Rotolock 2"1/4 hybrid manifolding specific section at the end of this document. Oil drain fitting VZH170 are equipped with oil drain connection.
  • Page 29 Application guidelines Dimensions Single compressors CDS303 frequency converter - enclosure B1 380-480 Volts - 15 kW - IP55 housing 180 (7.09) 40 (1.57) 34 (1.34) 37 (1.46) 43 (1.7) 41 (1.61) 84 (3.31) (0.43) (0.35) (0.35) (0.47) (10.24) (0.75) Min 100 (3.94) scale 1:2 Air space outlet 242 (9.53)
  • Page 30 Application guidelines Dimensions Single compressors CDS303 frequency converter - enclosure B2 380-480 volts – 18-22 kW - IP55 housing 34 (1.34) (7.09) 37 (1.46) 43 (1.7) 30 (1.18) 84 (3.31) (0.43) 9 (0.35) (1.57) (0.47) (0.35) Min 200 (7.87) (10.24) Ø19 Air space outlet (0.75)
  • Page 31 Application guidelines Dimensions Single compressors CDS303 frequency converter - enclosure B3 380-480 volts - 15 kW - IP20 housing (0.31) (0.27) (0.31) Ø12 (0.47) Scale 1:2 Min 100 (3.94) 165 (65) Air space outlet 140 (5.51) (9.80) Air outlet (15.71) (16.53) (14.96) Mounting base...
  • Page 32 Application guidelines Dimensions Single compressors CDS303 frequency converter - enclosure B4 380-480 volts – 18-22 kW - IP20 housing 200-240 volts – 15 kW - IP20 housing 525-600 volts - 18-30 kW - IP20 housing 0.33 (9.05) Min 200 (7.87) (0.59) (9.53) air space outlet...
  • Page 33 Application guidelines Dimensions Single compressors CDS303 frequency converter - enclosure C1 200-240 volts – 15-18-22 kW - IP55 housing (0.38) (0.35) (0.47) (0.74) scale 1:2 Min 200 (12.20) Air space outlet (10.70) (12.12) Air outlet (26.77) (25.51) Min 200 Mounting base (0.39) Air inlet Air space inlet...
  • Page 34 Application guidelines Dimensions Single compressors CDS303 frequency converter - enclosure C3 200-240 volts – 18-22 kW - IP20 housing (0.33) (0.67) (12.13) Min 200 (7.87) (13.11) Air space outlet (1.42) (10.63) Air outlet (19.21) (20.51) (24.80) (21.65) Air intlet Min 200 (7.87) Air space intlet (0.47) Dimensions in mm (inch)

  • Page 35: Electrical Data, Connections And Wiring

    Application guidelines Electrical data, connections and wiring Single compressors Supply voltage Because VZH compressors are powered by a = 0.87* I frequency converter, the mains frequency, 50 or = 1.05* I 60 Hz, is no longer an issue. Only the mains = 0.90* I voltage is to be taken into account.

  • Page 36: Fuses / Circuit Breakers

    Application guidelines Electrical data, connections and wiring Single compressors Fuses / circuit breakers Danfoss recommends using the fuses/circuit and are recommended. Other types of circuit breakers listed below to protect service breakers may be used provided they limit the energy to a level equal to or lower than the personnel and property in case of component break-down in the frequency converter.

  • Page 37: Wire Sizes

    Application guidelines Electrical data, connections and wiring Single compressors Wire sizes Below table lists recommended wiring sizes for the motor compressor power supply cables. These wiring sizes are valid for a cable length up to 65 ft. from drive to from network to compressor to drive...

  • Page 38: Emc Correct Installation Of An Ip20 Frequency Drive Cds303

    Application guidelines Electrical data, connections and wiring Single compressors EMC correct installation of an IP20 frequency drive CDS303 EMC qualification reports are available upon request to Danfoss technical support. PLC etc. Panel Grounding rail Cable insulation stripped Min. 0.025 in ²...

  • Page 39: Wiring Diagram

    Application guidelines Electrical data, connections and wiring Single compressors Wiring diagram 91 (L1) (U) 96 3 Phase (V) 97 92 (L2) power 93 (L3) (W) 98 input (PE) 99 Switch Mode DC bus 88 (-) Power Supply 89 (+) 10Vdc 24Vdc Brake (R+) 82...

  • Page 40: Wiring Connections

    Application guidelines Electrical data, connections and wiring Single compressors Wiring connections T1/U T2/V T3/W Ana out COM Ana out + Ana out +10 V 230V or 24V Ana in 0 ± 10 V ～ Ana in 0 ± 10 V 2 A max Ana in COM +24V...

  • Page 41: Electrical Connections

    Application guidelines Electrical data, connections and wiring Single compressors Electrical connections Electrical power is connected to the compressor The cable gland has to be of EMC design to terminals by Ø 3/16” (4.8 mm) screws. The guaranty a good grounding of the armored cable. maximum tightening torque is 3 Nm.

  • Page 42: Approvals And Certificates

    PS - service pressure LP 483 psi(g) 483 psi(g) 438 psi(g) Low voltage directive Products VZH088-117-170 2014/35/EU Declaration of conformity ref. Contact Danfoss Low voltage directive 2014/35/EU Internal free volume Products Internal free volume at LP side without oil (lb) VZH088 VZH117 VZH170 FRCC.PC.023.A7.22...

  • Page 43: Operating Conditions

    Application guidelines Operating conditions Single compressors Application envelopes The operating envelopes for VZH scroll • Minimum suction superheat should be above compressors are given in the figures below, 5K and minimum sump superheat should be above 10K due to the risk of liquid flood back. where the condensing and evaporating temperatures represent the range for steady state operation.

  • Page 44: Discharge Gas Temperature Protection Function

    Application guidelines Operating conditions Single compressors Discharge gas temperature A discharge temperature monitor function can be To activate the discharge temperature monitor protection function enabled in the frequency converter. All settings function, with the factory setting, the only modification required is to connect the sensor are available in parameter list 28.2x, they are factory preset as follow: to Analog Input 54 (4 - 20 mA) between 13 and...

  • Page 45: Oil Return Management Function (Single Compressor)

    Insulation Bracket A DGT accessory is available from Danfoss: refer to accessories pages at the end of this document. Oil return management Insufficient oil level can be the result of oil 3000 rpm (50 rps) for too long (as programmed in function (single compressor) depositing itself in pipes and heat exchangers.
  • Page 46 (except with pump-down). Danfoss recommend to use ETS products. EXV should be closed, and remained closed, Ramp-up and ramp-down settings, of both EXV and compressor, must be done with great care.

  • Page 47: System Design Recommendations

    Application guidelines System design recommendations Single compressors Essential piping design The working pressure in systems with R410A is flow will be lower compared to R22/R407C considerations about 60% higher than in systems with R22 or systems. To maintain acceptable pressure drops and acceptable minimum gas velocities, R407C.

  • Page 48: Oil Management

    In order to prevent compressors from breaking piping (long line set, U trap…), multiple heat down due to oil level issues, Danfoss requires the exchangers and elevation changes. use of an oil separator in all long piping systems, particularly for split systems.
  • Page 49 (Orifice Φ2.0) code number 018F6257 “24V (CE)” 50Hz AC” specification 1m 3-core cable solenoil coil code number 018F6282 “220-230V 50/60Hz AC” specification 1m 3-core cable Customers can of course contact Danfoss application engineers for support regarding recommendations in such systems. FRCC.PC.023.A7.22...

  • Page 50: Heat Exchangers

    More detailed information can be found in the compressor is limited. In this respect, follow the paragraphs hereafter. Please contact Danfoss guidelines given in the section: “Essential piping technical support for any deviation from these design recommendations”...

  • Page 51: Liquid Floodback During Operation

    Application guidelines System design recommendations Single compressors VZH scroll compressors can tolerate occasional Off-cycle migration can be prevented by flooded starts as long as the total system charge implementing a crankcase heating or adding a does not exceed the maximum compressor pump-down cycle to the operation cycle and a refrigerant charge limit.

  • Page 52: Specific Application Recommendations

    12 K above the ambient temperature for air cooled condensers. reaches a satisfactory level. Note: The minimum condensing pressure must For further information, please contact Danfoss be set at the minimum saturated condensing Technical support. temperature shown in the application envelopes.

  • Page 53: Brazed Plate Heat Exchangers

    Application guidelines Specific application recommendations Single compressors An oversized valve may result in erratic control. • The compressors should be run for a minimum period in order to ensure that the This can lead to liquid refrigerant entering the compressor if the expansion valve does not oil has sufficient time to properly return to provide stable refrigerant super-heat control the compressor sump and that the motor has...

  • Page 54: Defrost Cycle Logic

    4 way valve position 2 minimum pressure for 4 way valve moving. Danfoss recommend above defrost cycle logic, 10" 2" 10" 2" In order to limit liquid amount handled by but the control logic is also system specified.
  • Page 55 Application guidelines Specific application recommendations Single compressors The use of a suction line accumulator is strongly Sustained and repeated liquid slugging and Suction line accumulator recommended in reversible-cycle applications. floodback can seriously impair the oil’s ability to lubricate the compressor bearings. This situation This because of the possibility of a substantial quantity of liquid refrigerant remaining in the can be observed in wet climates where it is...

  • Page 56: Sound And Vibration Management

    Acoustic hoods are available from Danfoss as accessories. These hoods are quick Use of sound-insulation materials on the inside of and easy to install and do not increase the overall unit panels is an effective means of substantially size of the compressors to a great extend.

  • Page 57: Speed By-Pass

    Application guidelines Sound and vibration management Single compressors Speed by-pass If vibrations occurs at some typical frequencies speed by-pass is adjustable in the frequency of the VZH variable speed compressor system, converter, in order to avoid some frequency ranges. Four by-pass ranges are adjustable, and design must be checked: frame, piping, pipes using cushioned clamps.

  • Page 58: Installation

    Application guidelines Installation Single compressors Each compressor is shipped with printed http://instructions.cc.danfoss.com instructions for installation. These instructions can also be downloaded from: Compressor handling Each VZH scroll compressor is equipped with When the compressor is mounted as part of two lift rings on the top shell. Always use an installation, never use the lift rings on the both these rings when lifting the compressor.

  • Page 59: System Cleanliness

    (water content capacity), For servicing of existing installations where acid the system refrigeration capacity and the system formation is present the Danfoss DCL solid core refrigerant charge. Brazing and soldering When brazing copper-to-copper connections, temperature of below 800°C is recommended.
  • Page 60 For more detailed information on the appropriate draw the brazing material into the joint, but not materials required for brazing or soldering, please into the compressor. contact the product manufacturer or distributor. For specific applications not covered herein, please contact Danfoss for further information. FRCC.PC.023.A7.22...

  • Page 61: High Voltage Test

    Application guidelines Installation Single compressors High voltage test On M Ohm 2000 M Ohm M ohm 200 2000MOhm 20 ohm M ohm Gossen - ISOWID - 0413 MOTOR - 24V + - DC +DC It is not necessary to perform a Hipot test •...

  • Page 62: Leak Detection

    The best location is on the Refer to news bulletin FRCC.EN.050 “Danfoss liquid line between the condenser outlet and the Commercial Compressors recommended filter drier.

  • Page 63: Oil Level Checking And Top-Up

    If any deviation is observed, this means that some oil is trapped in the system, heat exchangers and/or pipes. Always use original Danfoss POE oil 160SZ from new cans. The CDS303 frequency converter integrates an oil recovery management algorithm which needs Top-up the oil while the compressor is idle.

  • Page 64: Troubleshooting

    Setting Error(s) cable Check VZH Come back to Motor resistance factory settings and isolation Correct Incompatibility the fault Between Software & Mains shut-off Additional option before checking ! Contact your Local Danfoss Reset & start March, 2014| Commercial Compressors FRCC.PC.023.A7.22...
  • Page 65 Check main power supply Check power voltage supply voltage Power normal Set 14-11 to lower value Internal components damage Too high or Reset & start too low Contact your Local Danfoss Turn off power Reset & start March, 2014| Commercial Compressors FRCC.PC.023.A7.22...
  • Page 66 Application guidelines Troubleshooting Single compressors Check alarm # (Continue) Start failed Speed limit (low) Wrong wiring of U/V/W Minimum speed not reached after 2 sec. Compressor bearing wear Compressor stopped, similar reason as A49 Compressor stopped Automatic restart after 30s Automatic restart after 30s 10 restarts...

  • Page 67: Ordering Information And Packaging

    Application guidelines Ordering information and packaging Single compressors Kit ordering and shipping The tables on the following pages give code compressor and CDS303 frequency converter kit numbers for ordering purposes for the VZH packed and shipped separately. Packaging Compressor single pack Height Width Depth...
  • Page 68 Application guidelines Ordering information and packaging Single compressors X = Motor code Compressors industrial pack Compressor model Technical Name Code G Code J VZH088AXANA 120G0078 120G0080 VZH088BXANA 120G0079 120G0081 VZH088 VZH088AXBNA 120G0090 120G0092 VZH088BXBNA 120G0091 120G0093 VZH117AXANA 120G0082 120G0084 VZH117BXANA 120G0083 120G0085 VZH117...

  • Page 69: Vzh Voltage Code G - 380-480 Volt

    Application guidelines Ordering information and packaging Single compressors VZH voltage code G - 380-480 Volt Frequency converter Compressor model Code n° for Model & power IP class RFI class Coating ordering 134G3576 134G3577 IP20 134F9366 134G3578 CDS303 VZH088-G 15.0kW 134G4008 134G4010 IP55 134G4012...

  • Page 70: Vzh Voltage Code J - 200-240 Volt

    Application guidelines Ordering information and packaging Single compressors VZH voltage code J - 200-240 Volt Frequency converter Compressor model Model & power IP class RFI class Code n° for ordering 134G3474 IP20 134F9361 CDS303 VZH088-J 15.0kW 134G4001 IP55 134G4002 134G3585 IP20 134F9363 CDS303...

  • Page 71: Accessories

    Application guidelines Accessories Single compressors Valves, adapters, connectors & gaskets for use on suction and discharge connections Solder sleeve adapter sets Type Code n° Description Application Packaging Pack size Solder sleeve adapter set (1"3/4 Rotolock, 1"1/8 ODF), 120Z0125 VZH088 Multipack (1"1/4 Rotolock, 7/8"...

  • Page 72: Spare Parts Frequency Converter

    Application guidelines Accessories Single compressors Mounting kits Type Code n° Description Application Packaging Pack size Mounting kit for 1 scroll compressor including 4 grommets, 4 120Z0066 VZH088-117 Single pack sleeves, 4 bolts, 4 washers Mounting kit for 1 scroll compressor including 4 grommets, 4 8156138 VZH170 Single pack...
  • Page 73 Application guidelines Accessories Single compressors Fans Pack Type Code n° Description Application Packaging size 130B3406 Fan IP55 VZH117 G & J Single pack 1 Control card Pack Type Code n° Description Application Packaging size 130B1109 Control card Frequency converter / all models Single pack Accessory bags Pack...
  • Page 74 Application guidelines VZH088-117-170 - hybrid manifolding Manifold compressors General overview ..........................75 Scope ..........................................75 Benefits......................................... 75 Oil management concept ........................76 Systems ........................................76 Oil separator ....................................... 78 Approved hybrid tandem configurations and capacity range ....................80 System design recommendation .......................81 Electronic expansion valve ...................................

  • Page 75: General Overview

    Danfoss SH fixed speed compressor and VZH Application Guidelines for single compressors. Variable speed compressor in air conditioning and heat pump applications.

  • Page 76: Oil Management Concept

    VZH and SH compressors by Danfoss is designed in an innovative way which is Considering oil return risk, split system robust with any kind of upstream piping. with more than 10m piping length need mandatory application approval by Danfoss application specialists.
  • Page 77 Application guidelines Oil management concept Manifold compressors A restrictor is used in suction line of either fixed make sure fixed speed have reasonable oil level speed or inverter to well balance the low side at this condition. That means when inverter run at any frequency below 100 rps, the fixed speed pressure between Variable speed and fixed speed compressors when fixed speed is ON and...

  • Page 78: Oil Separator

    Chiyoda (CE marked) oil separator (OS) since it equipment configurations and accessory options. has been tested by Danfoss. Chiyoda OS could improve oil starvation with selected capillary size, Many oil separator design exist; the selection,...
  • Page 79 VZH170+SH295 VZH: ID Ø1.8*1380 mm*mm SH: ID Ø1.8*1600 Strainer Mesh size Orifice(mm) Φ2.0 Solenoid Code number 032F1201 valve Model: Connection(in) 1/4" Danfoss (Orifice Code 018F6257 Φ2.0)(CE) number 50Hz AC Specification 1m 3-core cable Solenoid coil Code 220-230V 018F6282 number 50/60Hz...

  • Page 80: Approved Hybrid Tandem Configurations And Capacity Range

    179.3 51.0 ARI conditions: 7.2/54.4/11.1/8.3°C The kit available for these tandems are tested with Danfoss recommended piping design. If the piping G motor code: 380-480V/3ph/50-60Hz is customized by the customer, additional test to check oil balancing must be performed. Please contact your Danfoss Application Specialist for support.

  • Page 81: System Design Recommendation

    The pump down pressure switch must have a set compressors. Please refer to the chapter on VZH point slightly higher than the lowest compressor single compressors and the Danfoss SH single safety pressure switch set point. The high- compressors application guidelines (reference pressure safety pressure switch shall stop all FRCC.PC.007) for recommended settings.

  • Page 82: Cycle Rate Limit Of Sh Compressors

    12 reduces the service life of the motor compressor unit. If necessary, place an anti-short- cycle timer in the control circuit, connected as shown in the wiring diagram in the Danfoss SH scroll compressors application guidelines. A 4-minute timeout is recommended.

  • Page 83: Installation And Service

    Frame compressors. Compressor mounting For VZH tandem systems, Danfoss supply both Regarding rubber connection, compressors rigid and rubber connections, but only rubber are mounted on the base with enough stiff by connection is recommended by Danfoss. For grommets.

  • Page 84: Tandem Piping Design

    Therefore a installation (i.e. : oil analysis). Oil equalisation connection Danfoss Commercial Compressors has developed 1-1/8” oil equalisation line specially adapted oil equalisation • SH180 to 380: 2”1/4 rotolock connection allowing the use of 2”1/4 - 1”3/8 Organ pipe...

  • Page 85: Ordering Information

    +1 x new manifolding kit(120Z0591)+1x voltage. rubber mounting kit(8156138) Please note for VZH170 hybrid manifolding, Danfoss VZH and SH scroll compressors can rigid spacers is delivered with compressor be ordered in either industrial packs or in SH180/240/295 please leave rigid connection single packs.
  • Page 86 Application guidelines Ordering information Manifold compressors Manifolding kit 230V Type Code Number 230VAC/ VDC type New code number 120Z0594 120Z0595 120Z0596 120Z0597 120Z0598 120Z0599 120Z0600 120Z0601 VZH088+ VZH088+ VZH117+ VZH117+ VZH117+ VZH170+ VZH170+ VZH170+ Description SH090 SH120 SH140 SH161 SH184 SH180 SH240 SH295...

  • Page 87: Vzh088

    Application guidelines VZH088 Manifold compressors Composition of VZH088 tandem Composition Tandem model Variable speed Fixed speed VZH088 + SH090 VZH088 SH090 VZH088 + SH120 VZH088 SH120 7/8" Discharge left 1"3/8 Suction left 1"5/8 1"1/8 See detail A 240 Mini 1"1/8 Mini Oil equalization 1"1/8...

  • Page 88: Compressor Mounting

    Application guidelines VZH088 Manifold compressors Compressor mounting The tandem is fixed on the frame using the Because VZH088 is 0.28 inch smaller than flexible grommets supplied with the compressor. SH120 and in order to have the oil equalisation connection at the same level for both The compressors are fixed on the rails (not compressors, an additional 0.28 inch rigid spacer included) using rubber grommets, mounting...

  • Page 89: Suction Washer

    Application guidelines VZH088 Manifold compressors Suction washer Due to the difference of capacities of the compressors, it is essential to equalise the pressure of the sump. But, this oil equalisation or is also function of the configuration of the suction pipe. Suction washer is on fixed speed compressors.

  • Page 90: Vzh117

    Application guidelines VZH117 Manifold compressors Composition Composition of VZH117 Tandem model tandem Variable speed Fixed speed VZH117 + SH140 VZH117 SH140 VZH117 + SH161 VZH117 SH161 VZH117 + SH184 VZH117 SH184 SH140/161/184 7/8" VZH117 7/8" Discharge left 1"3/8 Suction left 1"5/8 1"3/8 240 Mini...

  • Page 91: Oil Equalisation Connection

    Application guidelines VZH117 Manifold compressors Oil equalisation connection The level of oil is naturally balanced by a 1”1/8 oil equalization line. The kit 120Zxxxx includes a 1”3/4 to 1”1/8 adaptor sleeve (4) & a teflon seal (5) to connect the oil line to the compressor 1”3/4 oil connector ...

  • Page 92: Vzh170

    Application guidelines VZH170 Manifold compressors Composition of VZH170 Composition tandem Tandem model Variable speed Fixed speed VZH170 + SH180 VZH170 SH180 VZH170 + SH240 VZH170 SH240 VZH170 + SH295 VZH170 SH295 SH180/ Discharge 240/295 right 1”5/8 VZH170 Suction right 2”1/8 1”1/8 (2x) 319 Mini Mini...

  • Page 93: Oil Equalisation Connection

    Application guidelines VZH170 Manifold compressors Oil equalisation connection The level of oil is naturally balanced by a 1"3/8 oil equalization line. The plastic organ pipe (1) connected to the fitting (2) is preinstalled in the compressor. Oil line (3) is brazed to the sleeve (4).
  • Page 94 Application guidelines Updates Previous version Current version • Page 28: Frequency converter dimensions • Page 28: Added Bracket supplied to Frequency converter dimensions table. • Page 42: Approvals and certificates • Page 42: Added Low voltage directive 2014/35/ EU to Approvals and certificates. •...
  • Page 96 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://danfoss.us.com Danfoss Commercial Compressors, BP 331, 01603 Trévoux Cedex, France | +334 74 00 28 29 FRCC.PC.023.A7.22 © Danfoss | DCS (CC) | 2016.04...

This manual is also suitable for:

Vzh 088Vzh 117Vzh 170

Table of Contents