Danfoss WSH090 Application Manuallines
Scroll compressors
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Summary of Contents for Danfoss WSH090
- Page 1 Application guidelines Danfoss scroll compressors WSH090 to WSH184 50 - 60 Hz - R410A http://cc.danfoss.com...
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Page 3: Table Of Contents
Sound and vibration management ........30 Dimensions ................8 Starting sound level ...................30 Running sound level ..................30 WSH090-105-120-140* and 161* ..............8 Stopping sound level ..................30 WSH 140 and 161 code 3 and WSH184............9 Sound generation in a refrigeration or air Connection details ..................... -
Page 4: Scroll Compression Principle
Application Guidelines Scroll compression principle In a Danfoss WSH scroll compressor, the scroll (in grey) traces a circular path around compression is performed by two scroll elements the centre of the fixed scroll (in black). This located in the upper part of the compressor. -
Page 5: Features
Application Guidelines Features WSH range is composed of WSH090-105-120- to achieve the ~5% higher efficiency for low 140-161-184 which is based on current SH pressure ratio applications such as water cooled range light commercial platform. The WSH chiller, air-to-air rooftop etc... -
Page 6: Compressor Model Designation
Application Guidelines Compressor model designation Danfoss WSH scroll compressors for R410A are Code numbers for ordering are listed section available as single compressors. The example “Ordering information and packaging”. below presents the compressor nomenclature which equals the technical reference as shown on the compressor nameplate. -
Page 7: Technical Specifications
50-60 Hz data Nominal Nominal cooling Power Swept E.E.R Displacement Oil charge Net weight tons 60Hz capacity input volume Model Btu/h Bty/h/W cm3/rev m3/h WSH090 22400 76500 7.22 3.10 10.59 88.40 15.40 58.0 WSH105 26800 91500 8.60 3.12 10.63 103.50 18.00... -
Page 8: Dimensions
Application Guidelines Dimensions WSH090-105-120-140* and 161* (* except code 3) Ø 224 Oil sight glass Ø 243 Equalisation line 190.5 4 x hole 30° Ø 19.05 190.5 Ø 29 SH090 Ø 35 SH105 - 120 - 140* & 161* 60°... -
Page 9: Wsh 140 And 161 Code 3 And Wsh184
Application Guidelines Dimensions WSH 140 and 161 code 3 and WSH184 Ø 243 Ø 243 Equalisation Oil sight line glass 190.5 4 x holes Ø19.05 30° 190.5 Ø 35 SH140 & 161 code 3 60° SH184 All dimensions in mm Ø... -
Page 10: Connection Details
WSH105 -120-140-161-184 Discharge 7/8" Oil sight glass All Danfoss WSH scroll compressors come 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. Oil equalisation connection WSH090-105-120-140-161-184: 1"3/4 rotolock... -
Page 11: Electrical Data, Connections And Wiring
Application Guidelines Electrical data, connections and wiring Motor voltage Danfoss WSH scroll compressors are available in five different motor voltages as listed below. Motor voltage code Code 3 Code 4 Code 7 Code 9 Nominal voltage 380-400V - 3 ph... -
Page 12: Three Phase Electrical Characteristics
Application Guidelines Electrical data, connections and wiring Three phase electrical Max Operating Winding characteristics current Resistance Compressor model Ω WSH090 0.39 WSH105 0.27 WSH120 0.27 Motor voltage code 3 200-230V / 3ph / 60 Hz WSH140 0.24 WSH161 0.22 WSH184 0.20... -
Page 13: Danfoss Mci Soft-Start Controller
25°C, the measured resistance must be corrected using the following formula: Danfoss MCI The inrush current for the Danfoss WSH scroll effects of high starting torque surges and costly soft-start controller compressors with motor code 4 (400V /3ph /... -
Page 14: General Wiring Information
Application Guidelines Electrical data, connections and wiring General wiring The wiring diagrams below are examples for a allow the system to build pressure. But it remains information safe and reliable compressor wiring. In case an mandatory for compressor protection to apply an alternative wiring logic is chosen, it is imperative LP safety switch. -
Page 15: Motor Protection
WSH 090 - 105 - 120 - 140- 161 - 184 Internal motor protection Internal reverse vent Compressor models WSH090-105-120-140- While not compulsory, an additional external 161 -184 have been provided with an internal overload is still advisable for either alarm or overload motor protection to prevent against manual reset. -
Page 16: Approval And Certifications
-35°C < Ts < 55°C Service pressure - Ps 33.3 bar(g) Declaration of conformity contact Danfoss Low voltage directive Products WSH090 to 184 2014/35/EU Declaration of conformity Contact Danfoss ref. Low voltage Directive 2014/35/EU Machines directive Products WSH090 to 184... -
Page 17: Operating Conditions
• Compressor capacity and efficiency • Compressor manufacturer recommendations and guidelines Danfoss Commercial Compressors, along with and use in coming years, in accordance with the the whole refrigeration and air conditioning international Montreal Protocol (1984). As a result, new chlorine-free molecules have industry, shares today’s concern about the... -
Page 18: Motor Supply
Application Guidelines Operating conditions POE oil Polyolester oil (POE) is miscible with HFC's POE is more hygroscopic and also holds moisture (while mineral oil is not), but has to be evaluated more tight than mineral oil. regarding lubrication ability in compressors. It also chemically reacts with water leading to POE oil has better thermal stability than acid and alcohol formation. -
Page 19: Discharge Temperature Protection
Application Guidelines Operating conditions Discharge temperature The discharge gas temperature must not exceed Thermostat protection 135°C. The discharge gas thermostat accessory kit (code Discharge line 7750009) includes all components required for installation as shown below. The thermostat must be attached to the discharge line within 150 mm Insulation from the compressor discharge port and must be Bracket... -
Page 20: Cycle Rate Limit
180 s motor cooling after start-up along with proper oil return. Note that the oil return may vary since it depends upon system design. Please contact Danfoss Technical Support for any deviation from this guidelines. FRCC.PC.028.A5.02... -
Page 21: 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 The working pressure in systems with R410A is... -
Page 22: Refrigerant Charge Limit
Refrigerant charge limit Danfoss WSH compressors can tolerate liquid Use the tables below to quickly evaluate the refrigerant up to a certain extent without major required compressor protection in relation with problems. -
Page 23: Off-Cycle Migration
Note: for special conditions such as low ambient temperature, low refrigerant load or brazed plate heat exchangers please refer to corresponding sections. More detailed information can be found in the paragraphs hereafter. Please contact Danfoss Technical Support for any deviation from these guidelines. Off-cycle migration Off-cycle refrigerant migration is likely to occur... - Page 24 In certain conditions, the discharge valve in effective ways to protect against the off-cycle the WSH090 - 105 - 120 - 140 - 161 - 180 - 184 migration of liquid refrigerant. Once the system compressor may not completely seal and result...
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Page 25: Liquid Flood Back
A continuous liquid flood back will cause oil dilution and, in extreme situations, lead to lack Danfoss SH scroll compressors can tolerate of lubrication and high rate of oil leaving the occasional liquid flood back. However system compressor. -
Page 26: Specific Application Recommendations
“Low pressure” in order to prevent this from happening. Low ambient operations The Danfoss WSH scroll compressor requires The superheat setting of the expansion device a minimum pressure differential between the should be sufficient to ensure proper superheat suction and discharge pressures (please refer levels during low loading periods. -
Page 27: Low Load Operation
Application Guidelines Specific application recommendations Sump heaters Sump heaters are strongly recommended on will minimize refrigerant migration caused by all systems where the compressor is exposed to the large temperature gradient between the low ambient temperatures, especially split and compressor and the remainder of the system, remote condenser installations. - Page 28 135°C. be installed on the discharge line to protect Discharge line, reversing The Danfoss WSH scroll compressor is a high Check with the valve manufacturer for optimal valve, solenoid valves volumetric machine and, as such, can rapidly sizing and recommended mounting positions.
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Page 29: Water Utilizing Systems
Application Guidelines Specific application recommendations Defrost and reverse cycle The Danfoss WSH scroll compressor has the the system is unloaded to the minimum capacity ability to withstand a certain amount of liquid step for defrost or when the cycle is reversed. -
Page 30: Sound And Vibration Management
The covers and bottom insulations 50 Hz 60 Hz Acoustic hood Model Sound power Attenuation Sound power Attenuation code number dB(A) dBA (1) dB(A) dbA (1) WSH090 120Z0034 WSH105 71.5 120Z0035 WSH120 72.5 120Z0035 WSH140* 72.5 120Z0035 WSH161* 73.5 120Z0035... - Page 31 Sound and vibration management Compressor sound radiation For sound radiating from the compressor, the Due to the Danfoss scroll’s unique design of emission path is airborne and the sound waves a full-suction gas-cooled motor, compressor are travelling directly from the machine in all body insulation across its entire operating directions.
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Page 32: Installation
Instructions for installation. These instructions http://instructions.cc.danfoss.com can also be downloaded from our website: Compressor handling and Each Danfoss WSH scroll compressor is equipped refrigerant and between -35°C and 70°C when storage with two lift rings on the top shell. Always use charged with nitrogen. -
Page 33: Compressor Holding Charge
Application Guidelines Installation Compressor holding Each compressor is shipped with a nominal dry first and the discharge plug afterwards. The plugs charge nitrogen holding charge between 0.3 and 0.7 bar shall be removed only just before connecting the and is sealed with elastomer plugs. compressor to the installation in order to avoid moisture from entering the compressor. -
Page 34: System Pressure Test
.Remove all remaining flux once the joint has torch using acetylene is recommended been soldered with a wire brush or a wet cloth. for brazing operation on Danfoss SH scroll Remaining flux would cause corrosion of the compressors. tubing. -
Page 35: Leak Detection
After burn out, remove and replace the liquid line polyolester oil, Danfoss recommends using the filter drier and install a Danfoss type DAS burn- out drier of the appropriate capacity. Refer to the Danfoss DML (100% molecular sieve) solid core filter drier. -
Page 36: Refrigerant Charging
Always use original Danfoss POE oil 160SZ from level in the compressor sight glass. new cans. -
Page 37: Ordering Information And Packaging
Application Guidelines Ordering information and packaging Packaging Single pack Gross Length Width Height Compressor models weight (mm) (mm) (mm) (kg) WSH090 WSH105 WSH120 WSH140 WSH161 WSH184 Industrial pack Gross Static Length Width Height Compressor models Nbr* weight stacking (mm) (mm) -
Page 38: Ordering Information
Application Guidelines Ordering information and packaging Ordering information Danfoss WSH scroll compressors can be ordered use the code numbers from below tables for in either industrial packs or in single packs. Please ordering. Single pack code no. Compressor model WSH090... -
Page 39: Accessories
Description Application Packaging size 120Z0125 Rotolock adaptor set (1"3/4 ~ 1"1/8) , (1"1/4 ~ 7/8") WSH090 Multipack 120Z0405 Rotolock adaptor set (1"3/4 ~ 1"3/8) , (1"1/4 ~ 7/8") WSH105 to 184 Multipack 7765006 * Rotolock adaptor set (1"3/4 ~ 1"3/8) , (1"1/4 ~ 7/8") - Page 40 Description Application Packaging size 7703008 Valve set, V02 (1"3/4 ~ 1"1/8), V05 (1"1/4 ~ 7/8") WSH090 Multipack 120Z0403 Valve set, V02 (1"3/4 ~ 1"1/8), V05 (1"1/4 ~ 7/8") WSH090 Multipack 7703392 Valve set, V10 (1"3/4 ~1"3/8), V05 (1"1/4 ~ 7/8")
- Page 41 Sight glass with gaskets (black and white) All models Multipack 8156129 Gasket for oil sight glass, 1"1/8 (white teflon) All models Multipack 7956005 Gasket for oil sight glass, 1"1/8 (white teflon) All models Multipack 8154001 Danfoss Commercial Compressors blue spray paint All models Single pack FRCC.PC.028.A5.02...
- Page 42 Application Guidelines Updates Previous Version Current Version • Page 12: Three phase electrical characteristics • Page 12: Updated Motor voltage code3 (WSH105 model) in Three phase electrical characteristics • Page 16: Pressure equipment directive 97/23/ • Page 16: Pressure equipment directive EC, Low voltage directive 2006/95/EC 2014/68/EU, Low voltage directive 2014/35/EU •...
- Page 44 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 FRCC.PC.028.A5.02 © Danfoss | DCS (CC) | 2016.07...
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