Application guidelines VSH scroll specificities Reinforced high grade ductile cast iron scroll set. Oil circulation at high speed is minimized by separating oil and gas flows with an oil return tube to A patented oil injection the sump system ensures that scrolls are optimally lubricated at all compressor speeds.
Application guidelines Variable speed compressors Compressor Variable speed technology offers more flexi- 3. Best Seasonal Efficiency Ratio: Select a size bility in compressor selection than fixed speed compressor size which achieves the minimum compressors. Selection of the right variable system cooling demand at its minimum speed. speed compressor size can be done by different Ensure that the compressor is able to cover the methods:...
Application guidelines Nomenclature and specifications Compressor nomenclature Variable speed Evolution index Family, Lubricant Motor protection type VSH scroll, POE lubricant N: no internal motor protection R410A refrigerant (protection by drive) Equipment version Swept volume A: brazed connections in cm3/rev Standard approval Motor voltage code UL index J: 200-240V / 3 ph / 50 &...
This connection is a female ¼” NPTF fitting, which in order to collect the oil at the bottom of the oil allows oil to be removed for testing, replacement sump. etc… VSH088 and VSH117 are not equipped with oil drain fitting. Suction & discharge Suction Discharge...
Application guidelines Dimensions CDS302 frequency converter - enclosure C1 200-240 volts – 15-18-22 kW - IP55 housing 0.35 0.36 0.47 0.75 scale 1:2 Min 7.87 12.20 Air space outlet 10.71 12.13 Air outlet 25.51 26.77 Min 7.87 Mounting base Air inlet Air space inlet 0.39 0.35...
66 ft. From network to frequency converter From frequency converter to compressor Type inch² Type inch² CDS-15kW 0.039 VSH088-J 0.039 200 - 240 V CDS-18.5 kW 0.054 VSH117-J 0.054 CDS-22 kW 0.077 VSH170-J 0.077...
Application guidelines Electrical data, connections and wiring Hipot test procedure 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 (dielec- •...
Application guidelines Electrical data, connections and wiring EMC correct installation of an IP20 frequency drive CDS302 EMC qualification reports are available upon request to Danfoss technical support. PLC etc. Panel Grounding rail Cable insulation stripped Min. 0.025 in ² (16 mm²)
Application guidelines Electrical data, connections and wiring Wiring connections 39 39 Ana out COM 42 42 Ana out + 50 50 Ana in +10 V 230 V 53 53 Ana in 0 ± 10 V ~ 54 54 Ana in 0 ± 10 V 2 A max 55 55 Ana in COM 12 12 +24V...
Application guidelines Electrical data, connections and wiring Electrical connections Electrical power is connected to the compres- The cable gland has to be of EMC design to ga- sor terminals by Ø 3/16” screws. The maximum ranty a good grounding of the armored cable. thightening torque is 2ft.lbs.
The derating values are shown in the drive application manual and are linked to 3000 m 0.82 the drive frame and IP protection level. 3500 m 0.78 For more details about these specific running conditions, please contact Danfoss technical support. FRCC.PC.014.A4.22...
Application guidelines Operating conditions Application envelope 50 - 90 Hz Superheat: 11°F 30 - 90 Hz Evaporating temperature °F Short cycle timer function Short cycle control is directly provided by the Short cycle settings are accessible in parameter CDS302 frequency converter, when parameter 28.0* list, in the “compressor functions”...
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 depos-...
Refer to accessory list for code numbers. For VSH088 and VSH117 this function is factory preset to “enabled”. Go to parameter 28.3* in the frequency converter for settings (factory presets are done).
Application guidelines System design recommendations Essential piping design The working pressure in systems with R410A is In systems with R410A, the refrigerant mass flow considerations about 60% higher than in systems with R22 or will be lower compared to R22/R407C systems. R407C.
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”...
Application guidelines System design recommendations Crankcase heater / sump heater: When the propriate oil temperature is maintained under compressor is idle, the oil temperature in the all ambient conditions (temperature and wind). sump of the compressor must be maintained at no lower than 18°F above the saturation tem- Provide separate electrical supply for the perature of the refrigerant on the low-pressure...
22°F above the ambient tempera- satisfactory level. ture for air cooled condensers. 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.
Application guidelines Specific application recommendations levels during low loading periods. 9 to 10.8°F way that the minimum pressure differential is stable superheat is required. In addition, the maintained between the suction and discharge refrigerant charge should be sufficient to ensure pressures.
Specific application recommendations Application guidelines sive temperatures. Operating the compressor at Refer to section “Discharge gas temperature pro- too high discharge temperatures can result in tection” function for frequency converter settings mechanical damage to the compressor as well as and accessories availability. thermal degradation of the compressor lubricat- ing oil and a lack of sufficient lubrication.
For VSH170, an inferior hood is delivered with the SSH (Surface Sump Heater) to improve its heating VSH088 efficiency. Noise level for VSH170 given below includes this inferior hood attenuation. VSH117 For VSH088 and VSH117, inferior hood are not 68 (*) available. VSH170 79 (*) 88 (*) Sound power at ARI A/C conditions measured in free space.
Installation Each compressor is shipped with printed instruc- be downloaded from: tions for installation. These instructions can also www.instructions.cc.danfoss. com Compressor handling Each VSH scroll compressor is equipped with two When the compressor is mounted as part of lift rings on the top shell. Always use both these an installation, never use the lift rings on the rings when lifting the compressor.
For servicing of existing installations where acid formation is present the Danfoss DCL solid core filter driers containing activated alumina are recommended. Brazing and soldering...
Never use other gasses such as ing pressures: oxygen, dry air or acetylene as these may form an 483 psig for VSH088 & 117 Maximum compressor test pressure (low side) 438 psig for VSH170 Maximum compressor test pressure (high side)
Application guidelines Installation Vacuum pump down and Moisture obstructs the proper functioning condition can also lead to copper plating. All moisture removal of both the compressor and the refrigeration these phenomena may cause both mechanical system. Air and moisture reduce service life and and electrical compressor failures.
Always use original Danfoss POE oil 160SZ from When the compressor is running under stabilized new cans. conditions the oil level must be visible in the sight glass.
Code n° for Model & Model IP class RFI class Coating Code n° for ordering ordering power 131N3583 IP20 131N6978 131N6979 IP55 131N6980 CDS302 VSH088-H 120G0007 15.0kW 131N6981 IP20 131N6982 131N6983 IP55 131N6984 131N6985 IP20 131N6986 131N6987 IP55 131N6988 CDS302...
Gasket for oil sight glass (white teflon) VSH all models Multipack 7956005 Gasket for oil sight glass (white teflon) VSH all models Industry pack 8154001 Danfoss CC blue spray paint VSH all models Single pack Spare parts frequency converter LCP’s Code n° Pack Description...
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Application guidelines Accessories Accessory bags Code n° Pack Description Application Packaging size Until 2011 After 2011 120Z0344 130B0980 Accessory bag IP20 15 - 18.5 kW Single pack 120Z0346 130B1300 Accessory bag IP20 22 kW Single pack 120Z0347 130B2060 Accessory bag IP55 15 - 18.5 kW Single pack 120Z0349...
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