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GENER

AL INFORMA

TION

PR

ODUC

T INFORMA

TION

INTEGR

ATION INT

O SY

STEM

ORDERING INFORMA

TION

SY

STEM DESIGN

Manage superheat

Test, criteria and solutions

Test N°

Purpose

Test condition

Pass criteria

Solutions

Liquid flood

back test

Steady-state

Liquid flood back testing must be

carried out under expansion valve

threshold operating conditions:

•

Lowest foreseeable evaporation,

and highest foreseeable

condensation.

•

Minimum number of compressor

running.

For reversible system, perform test

in both heating and cooling mode.

Suction superheat >5K (9°F)

1. Check expansion valve selection

and setting.

•

For Thermostatic expansion valve

(TXV) check bulb position...

•

For Electronic expansion valve

(EXV) check measurement chain and

PID....

2. Add a suction accumulator*.

Transient

Tests must be carried out with most

unfavorable conditions :

•

fan staging,

•

compressor staging

•

…

Oil superheat shall not be more than

30 sec below the safe limit defined in

the Dilution Chart. (see graph below)

Defrost test

Check liquid

floodback

during defrost

cycle

Defrost test must be carried out in

the most unfavorable conditions

(at 0°C (32°F) evaporating

temperature).

Oil superheat shall not be more than

30 sec below the safe limit defined in

the Dilution Chart. (see graph below)

1. Check defrost logic.

In reversible systems, the defrost

logic can be worked out to limit

liquid floodback effect. (for more

details see “Control Logic”).

2. Add a suction accumulator*.

*Suction accumulator offers protection by trapping the liquid refrigerant upstream from the compressor. The accumulator should be sized at least 50 % of the total system
charge. Suction accumulator dimensions can impact oil return (gas velocity, oil return hole size…), therefore oil return has to be checked according to section “Manage oil in the
circuit”.

A

During normal operation, refrigerant enters
the compressor as a superheated vapor. Liquid
flood back occurs when a part of the refrigerant
entering the compressor is still in liquid state.

Liquid flood back can cause oil dilution and, in
extreme situations lead to liquid slugging that
can damage the compressor.

Requirement

System evaluation

In steady state conditions the expansion device
must ensure a suction superheat within 5K to 30K
(9 to 54°F).

Use the table in relation with the application to
quickly evaluate the potential tests to perform.

Application

Tests to perform

Non reversible

Liquid flood back test

Reversible

Liquid flood back test

Defrost test

39

FRCC.PC.045.A7.02

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Содержание DSH Series

Страница 1: ...Danfoss scroll compressors DSH 090 to 485 Single and manifold 50Hz 60Hz R410A Application guidelines http cc danfoss com ...

Страница 2: ......

Страница 3: ...ia and solutions 31 Manage sound and vibration 32 Compressor sound radiation 32 Mechanical vibrations 34 Gas pulsation 34 Manage operating envelope 35 Requirement 35 High and low pressure protection 37 Discharge temperature protection 37 System evaluation 38 Test criteria and solutions 38 Manage superheat 39 Requirement 39 System evaluation 39 Test criteria and solutions 39 Manage off cycle migrat...

Страница 4: ...ns are highlighted with the following icons This icon indicates instructions to avoid safety risk This icon indicates instructions to avoid reliability risk The purpose of this guideline is to help customers qualify compressors in the unit You are strongly advise to follow these instructions For any deviation from the guidelines please contact Danfoss Technical Support In any case Danfoss accepts ...

Страница 5: ... thus reducing the effort of the motor and its electrical consumption and improving the system s seasonal energy efficiency How do IDVs work DSH090 105 120 140 161 184 DSH240 295 381 485 Overview Intermediate discharge valves IDVs increase seasonal efficiency Heat shield lowers the heat transfer between discharge and suction gas and the acoustic level Internal Non Return Valve INRV prevents excess...

Страница 6: ...omenclature Family lubricant refrigerant DSH Scroll POE lubricant for R410A Motor protection A Electronic module 24V AC B Electronic module 110 240V L Internal overload protector Suction and discharge connections A Brazed connections Family lubricant refrigerant Nominal capacity Approvals Voltage Version Evolution index Evolution index A Z A 4 DSH A AB 485 Motor voltage code 3 200 230V 3 60Hz 4 38...

Страница 7: ...2 58 128 DSH105 9 0 32280 110100 10 01 3 22 11 00 103 5 6 32 21 8 770 3 3 113 64 141 DSH120 10 0 36630 125000 11 25 3 26 11 11 116 9 7 13 24 6 869 3 3 113 64 141 DSH140 12 0 41510 141600 12 75 3 26 11 11 133 8 12 27 9 985 3 3 113 67 148 DSH161 13 0 47220 161100 14 7 3 21 10 96 151 7 9 26 31 9 1127 3 3 113 69 152 DSH184 15 0 53160 181400 16 36 3 25 11 09 170 3 10 39 35 8 1264 3 6 123 71 5 158 DSH24...

Страница 8: ...SH120 17 5 63523 216741 19 8 3 21 10 94 43 2 1526 DSH210E 2xDSH105 18 0 63979 218296 20 0 3 20 10 90 43 6 1540 DSH230U DSH090 DSH140 19 0 68359 233242 21 3 3 21 10 95 46 5 1642 DSH240E 2xDSH120 20 0 72601 247713 22 5 3 23 11 01 49 2 1737 DSH251U DSH090 DSH161 20 5 74018 252549 23 3 3 18 10 86 50 5 1783 DSH260U DSH140 DSH120 22 0 77437 264214 24 0 3 23 11 01 52 5 1854 DSH274U DSH090 DSH184 22 5 799...

Страница 9: ...6 538892 49 4 3 20 10 90 105 8 3736 DSH590 2xDSH295 50 0 173643 592487 53 9 3 22 10 99 116 4097 DSH620 DSH240 DSH381 50 0 180421 615616 57 0 3 17 10 80 120 1 4241 DSH675 DSH295 DSH381 55 0 196129 669211 61 5 3 19 10 89 130 3 4602 DSH725 DSH240 DSH485 60 0 211737 722468 66 1 3 20 10 93 140 7 4969 DSH760 2xDSH381 60 0 218615 745935 69 0 3 17 10 80 144 6 5107 DSH780 DSH295 DSH485 65 0 227444 776063 7...

Страница 10: ... 243 9 57 485 19 09 235 9 25 451 17 76 180 7 09 230 9 06 230 9 06 8560004 DSH105 120 140 161 243 9 57 542 21 34 278 10 94 509 20 04 180 201 7 09 7 91 230 9 06 230 9 06 8560003 8560041 DSH184 243 9 57 558 21 97 299 11 77 524 20 63 201 7 91 230 9 06 230 9 06 8560023 DSH240 318 12 52 683 26 89 331 13 03 648 25 51 428 16 85 345 13 58 371 14 61 8556089 DSH295 318 12 52 683 26 89 331 13 03 648 25 51 428...

Страница 11: ...ction Brazed 1 1 8 Brazed 1 3 8 Brazed 1 5 8 Brazed 1 5 8 Discharge connection Brazed 7 8 Brazed 7 8 Brazed 1 1 8 Brazed 1 3 8 Oil sight glass Threaded 1 1 8 18 UNEF Oil equalization connection Rotolock 1 3 4 Rotolock 2 1 4 Oil drain connection None Female Flare incorporating a Schrader valve Low pressure gauge port Shrader Male Flare incorporating a Schrader valve Outline 11 FRCC PC 045 A7 02 ...

Страница 12: ...ERAL INFORMATION SYSTEM DESIGN INTEGRATION INTO SYSTEM ORDERING INFORMATION PRODUCT INFORMATION L1 H H1 D L Dimensions Tandem assemblies H L L1 H1 D D H L L1 H1 D H L L1 H1 H1 H D L1 L 12 FRCC PC 045 A7 02 ...

Страница 13: ...184 850 33 46 428 16 85 580 22 83 8556231 DSH345U DSH161 DSH184 850 33 46 428 16 85 580 22 83 8556231 DSH368E DSH184 DSH184 850 33 46 428 16 85 580 22 83 8560113 DSH360X DSH120 DSH240 903 35 55 533 20 98 731 28 78 359 min 14 13 min 211 8 31 8560128 DSH424X DSH184 DSH240 903 35 55 533 20 98 731 28 78 8556259 DSH456X DSH161 DSH295 903 35 55 533 20 98 731 28 78 8560128 DSH479X DSH184 DSH295 903 35 55...

Страница 14: ...4 84 518 20 39 584 22 99 515 min 20 28 min 8556194 1139 44 84 518 20 39 584 22 99 511 min 20 12 min 8556193 DSH720 3 x DSH240 1467 57 76 543 21 38 731 28 78 535 min 21 06 min 211 8 31 8556118 DSH885 3 x DSH295 1467 57 76 543 21 38 731 28 78 8556118 DSH1140 3 x DSH381 1467 57 76 545 594 21 46 23 39 803 31 61 8556120 DSH1245 2xDSH381 DSH485 1520 59 84 573 594 22 56 23 39 803 31 61 8556172 DSH1350 DS...

Страница 15: ... 9 50Hz Nominal voltage 380 415V 3ph 380 400V 3ph Voltage range 342 457V 342 440V 60Hz Nominal voltage 200 230V 3ph 460V 3ph 575V 3ph 380 400V 3ph 380V 3ph Voltage range 180 253V 414 506V 517 632V 342 440V 342 418V DSH240 4 and DSH381 4 DSH240 9 to DSH485 9 The voltage range indicates where the compressor can run in the majority of the application envelope A boundary voltage supply which accumulat...

Страница 16: ...Cover holding screws x3 Torque 2 2 Nm Blue Brown M1 M2 Control circuit Terminal box Black Blue Brown Faston 1 4 tabs Power supply Sump heater Module power supply M1 M2 Control circuit M1 M2 control circuit Power supply Power supply Power supply The terminal box is provided with 2 triple knockouts for power supply 2 double knockouts and 3 simple knockouts for the safety control circuit The 2 power ...

Страница 17: ... 158 F Three phase electrical characteristics Terminal box temperature Compressor model LRA MCC Max operating current Winding resistance A A A Ω Motor voltage code 3 200 230V 3ph 60Hz DSH090 203 43 38 0 39 DSH105 267 51 45 0 27 DSH120 267 61 48 0 27 DSH140 304 64 56 0 24 DSH161 315 69 64 0 22 DSH184 351 75 71 0 22 DSH240 485 105 103 0 16 DSH295 560 128 112 0 13 DSH381 717 170 155 0 09 DSH485 1010 ...

Страница 18: ...Electrical data connections and wiring Winding resistance is the resistance between phases at 25 C 77 F resistance value 7 Winding resistance is generally low and it requires adapted tools for precise measurement Use a digital ohm meter a 4 wires method and measure under stabilised ambient temperature Winding resistance varies strongly with winding temperature If the compressor is stabilised at a ...

Страница 19: ...T1 T2 and T3 respectively Compressor models DSH 240 to 485 are delivered with an electronic module which provides protection against phase reversal and phase loss at start up The phase sequencing and phase loss monitoring functions are active during a 5 sec window 1 second after compressor start up power on L1 L2 L3 Should one of these parameters be incorrect the relay would lock out contact M1 M2...

Страница 20: ...ation of conformity Contact Danfoss Products Internal free volume without oil Low pressure side High pressure side Total litre cu inch litre cu inch litre cu inch DSH090 11 7 714 0 7 43 12 4 757 DSH105 13 6 830 0 7 43 14 3 873 DSH120 13 6 830 0 7 43 14 3 873 DSH140 13 6 830 0 7 43 14 3 873 DSH161 13 6 830 0 7 43 14 3 873 DSH184 13 9 848 0 7 43 14 6 891 DSH240 28 5 1739 2 5 153 31 0 1892 DSH295 28 ...

Страница 21: ...ation tests see section Manage off cycle migration General recommendations are described in the figures below 3 Piping should be designed with adequate three dimensional flexibility to avoid excess vibration It should not be in contact with the surrounding structure unless a proper tubing mount has been installed For more information on noise and vibration see section on Sound and vibration manage...

Страница 22: ...61 DSH140 1 5 8 1 3 8 1 1 8 120Z0692 8556230 DSH304U DSH120 DSH184 1 5 8 1 3 8 1 1 8 120Z0694 8556231 DSH322E DSH161 DSH161 1 5 8 1 3 8 1 1 8 120Z0634 8560114 DSH324U DSH140 DSH184 1 5 8 1 3 8 1 1 8 120Z0694 8556231 DSH345U DSH161 DSH184 1 5 8 1 3 8 1 1 8 120Z0694 8556231 DSH360X DSH120 DSH240 2 1 8 1 3 8 1 3 8 120Z0709 8560128 DSH368E DSH184 DSH184 1 5 8 1 3 8 1 1 8 120Z0634 8560113 DSH424X DSH18...

Страница 23: ...ght DSH090 DSH105 DSH195U Left 120Z0694 5312497P01 25mm 0 98inch Cp2 Right 5312497P05 26mm 1 02inch Cp2 DSH090 DSH120 DSH210U Left 120Z0694 5312497P04 27mm 1 06inch Cp2 Right 5312497P04 27mm 1 06inch Cp2 DSH105 DSH105 DSH210E Left 120Z0634 Not needed Right DSH090 DSH140 DSH230U Left 120Z0694 5312639P05 23mm 0 91inch Cp1 Right 5312639P05 23mm 0 91inch Cp1 DSH120 DSH120 DSH240E Left 120Z0634 Not nee...

Страница 24: ...79P10 35 5mm 1 4inch CP2 Right 5311579P10 35 5mm 1 4inch CP2 DSH161 DSH295 DSH456X Left 120Z0709 5312497P01 25mm 0 98inch Cp1 Right 5312497P05 26mm 1 02inch Cp1 DSH184 DSH295 DSH479X Left 120Z0709 5312497P05 26mm 1 02inch CP1 Right 5312497P05 26mm 1 02inch CP1 DSH240 DSH240 DSH482 Left 7777041 Not needed Right DSH240 DSH295 DSH535 Left 7777037 5311579P01 31mm 1 22inch Cp1 Right DSH184 DSH381 DSH56...

Страница 25: ... DSH552 Left 120Z0685 5312497P04 27mm 1 06inch CP1 5312497P06 24mm 0 94inch CP3 Right 5312497P08 26 5mm 1 04inch CP1 5312639P04 24 5mm 0 96inch CP3 DSH240 DSH240 DSH240 DSH720 Left 120Z0673 5311579P08 30mm 1 18inch Cp3 Right 7777039 5311579P03 34 5mm 1 36inch Cp1 and Cp3 DSH295 DSH295 DSH295 DSH885 Left 120Z0673 5311579P08 30mm 1 18inch Cp3 Right 7777039 5311579P03 34 5mm 1 36inch Cp1 and Cp3 DSH3...

Страница 26: ...ch will ensure best oil balance R Oil equalization design The oil level is balanced by a pipe of 1 1 8 oil equalization line In order ensure best oil balance the organ pipe need to be mounted inside the oil equalization port as indicated on below picture To connect the equalization line on rotolock connections the organ pipe adaptor and teflon gasket are included in the tandem kit must be used DSH...

Страница 27: ...tion port To connect the equalization line on rotolock connections the organ pipe adaptor sleeves Teflon gaskets included in the tandem accessory kit must be used For DSH120 DSH161 or DSH184 For DSH240 DSH295 or DSH381 DSH360X 424X 456X 479X 565X DSH482 535 DSH590 to DSH1350 Tightening torque 100Nm Organ pipe The oil level is balanced by a pipe of 1 3 8 or 1 5 8 To connect the equalization line on...

Страница 28: ...essor from the base frame The grommets must be compressed until contact between the flat washer and the steel mounting sleeve is established The required bolt size for the DSH090 105 120 140 161 184 compressors is HM8 40 This bolt must be tightened to a torque of 15Nm 15mm 0 59 inch HM 8 bolt Lock washer Flat washer Steel mounting sleeve Rubber grommet Nut Tightening torque 15 Nm To be used in sin...

Страница 29: ...er grommets and spacers must be installed below the rails The rigid mounting spacers are included in tandem accessory kits The rubber grommets are supplied with compressor For more details about parallel mounting feet please see parallel unit outline drawing Included in tandem kit Not supplied Supplied with the compressor Not supplied Φ8x75mm 0 31x2 95inch Tightening torque 15Nm 4mm 0 16 inch thic...

Страница 30: ... Not supplied Φ10mm Tightening torque 39Nm 5mm 0 2inch thickness Tightening torque 55Nm For parallel mounting the compressors must be mounted with hexagonal rigid spacers on the rails Rubber grommets and spacers must be installed below the rails These parts are included in accessories Tightening torque 39Nm HM10 x100 5mm 0 2inch Thickness Tightening torque 55Nm Tightening torque 16Nm Supplied in a...

Страница 31: ...ling mode Oil level must be visible or full in the sight glass when the compressors are running and when all compressors of the circuit are stopped 1 Top up with oil generally 3 of the total system refrigerant charge in weight 2 Check that manifold piping is conform to Danfoss requirements 3 Integrate a function in control logic to stop manifold periodically in order to balance oil for more detail...

Страница 32: ...enuation dBA DSH090 73 6 76 6 120Z0034 Not Needed DSH105 75 6 78 6 102Z0035 DSH120 75 6 78 6 120Z0035 DSH140 76 6 79 6 120Z0035 DSH161 76 6 79 6 120Z0035 DSH184 78 6 81 6 120Z0135 DSH240 82 6 86 4 120Z0022 120Z0353 DSH295 82 6 86 4 120Z0022 120Z0353 DSH381 87 6 89 4 120Z0022 120Z0353 DSH485 89 4 91 4 120Z0022 120Z0353 Sound power and attenuation are given at ARI conditions measured in free space F...

Страница 33: ...9 0 82 0 DSH324U DSH140 DSH184 80 0 83 0 DSH345U DSH161 DSH184 80 0 83 0 DSH368E 2 DSH184 81 0 84 0 DSH360X DSH120 DSH240 83 0 86 5 DSH424X DSH184 DSH240 83 5 87 0 DSH456X DSH161 DSH295 83 0 87 0 DSH479X DSH184 DSH295 83 5 87 0 DSH565X DSH184 DSH381 87 5 89 5 DSH482 2xDSH240 85 0 890 DSH535 DSH240 DSH295 85 0 89 0 DSH590 2xDSH295 85 0 89 0 DSH620 DSH240 DSH381 88 0 91 0 DSH675 DSH295 DSH381 88 0 9...

Страница 34: ... to DSH485 However when system structure natural frequencies are close to running frequency vibrations are amplified due to resonance phenomenon A high vibration level is damageable for piping reliability and generates high sound levels Mitigations methods 1 To ensure minimum vibrations transmission to the structure strictly follow Danfoss mounting requirements mounting feet rails etc For further ...

Страница 35: ...elope Single DSH240 to DSH485 Tandem DSH482 535 DSH590 to DSH970 Trio DSH720 to DSH1350 Condensing temperature C Condensing temperature F Evaporating temperature C Evaporating temperature F 40 5 10 15 20 25 30 35 40 45 50 55 60 65 70 41 50 59 68 77 86 95 104 113 122 131 140 149 158 35 30 25 20 15 10 5 0 5 10 15 20 25 30 40 31 22 13 4 5 14 23 32 41 50 59 68 77 86 S H 5 K 9 F S H 30 K 54 F Condensin...

Страница 36: ... 40 31 22 13 4 5 14 23 32 41 50 59 68 77 86 Condensing temperature F 41 50 59 68 77 86 95 104 113 122 131 140 149 158 Pressure settings R410A Working range high side bar g 9 9 44 7 psig 144 648 Working range low side bar g 1 7 15 5 psig 25 225 Maximum high pressure safety switch setting bar g 46 1 psig 669 Minimum low pressure safety switch setting bar g 1 5 psig 22 Minimum low pressure pump down ...

Страница 37: ... components required for installation as shown on the right DGT installation must respect below requirements The thermostat must be attached to the discharge line within 150mm 5 91inch from the compressor discharge port and must be thermally insulated and tightly fixed on the pipe The DGT should be set to open at a discharge gas temperature of 135 C 275 F or lower DSH240 295 381 485 compressors in...

Страница 38: ...velope limits integrated into control logic DGT external See Test criteria and solutions HP switch setting MOP Max evap T LP switch setting Condensing pressure control DGT tests N o 1 and 2 Test criteria and solutions Test N Purpose Test condition Pass criteria Solutions 1 Ensure compressor operate within envelope Start test at minimum foreseeable evaporating temperature minimum ambient temerature...

Страница 39: ...uperheat shall not be more than 30 sec below the safe limit defined in the Dilution Chart see graph below 1 Check defrost logic In reversible systems the defrost logic can be worked out to limit liquid floodback effect for more details see Control Logic 2 Add a suction accumulator Suction accumulator offers protection by trapping the liquid refrigerant upstream from the compressor The accumulator ...

Страница 40: ...erence at 20 C 68 F ambient temperature 25 30 22 5 27 5 20 17 5 15 12 5 10 7 5 5 25 30 20 15 10 5 0 5 10 15 20 25 30 2 5 0 Unsafe Area Safe Area Evaporating Temperature C Oil Superheat K 13 22 4 5 14 23 32 41 50 59 68 77 86 Evaporating Temperature F 45 54 40 5 49 5 36 31 5 27 22 5 18 13 5 9 4 5 0 Oil Superheat F Oil temperature sensor must be placed between the oil sight glass and the compressor b...

Страница 41: ... must close when system stop including in power shut down situation Non split No test or additional safeties required Surface Sump Heater External Non Return Valve Split Since each installation is unique refrigerant charge may vary Surface Sump Heater Liquid Line Solenoid Valve pump down cycle External Non Return Valve Surface Sump heater The surface sump heater are designed to protect the compres...

Страница 42: ...5 14 31 DSH565X DSH184 DSH381 14 31 DSH482 2xDSH240 21 46 DSH535 DSH240 DSH295 21 46 DSH590 2xDSH295 25 55 DSH620 DSH240 DSH381 21 46 DSH675 DSH295 DSH381 25 55 DSH760 2xDSH381 29 64 DSH725 DSH240 DSH485 21 46 DSH780 DSH295 DSH485 25 55 DSH865 DSH381 DSH485 29 64 DSH970 2xDSH485 34 75 Trio DSH420 3xDSH140 14 31 DSH483 3xDSH161 14 31 DSH552 3xDSH184 14 31 DSH720 3xDSH240 21 46 DSH885 3xDSH295 25 55...

Страница 43: ...090 to DSH184 and electronic module relay output M1 M2 only for DSH240 to DSH485 must be wired in the safety chain Other safety devices such as LP can be either hardware or software managed Provide separate electrical supply for the heaters so that they remain energized even when the machine is out of service e g seasonal shutdown The wiring diagrams below are examples for a safe and reliable comp...

Страница 44: ...ses F1 Compressor contactor KM High pressure safety switch HP Safety pressure switch LPS Discharge gas thermistor embedded in compressor DGT Compressor motor M Motor Protection Module MPM Thermistor chain motor and discharge temperature S Surface sump heater SSH Thermal magnetic motor circuit breaker CB Legends Provide power supply and electrical protection 44 FRCC PC 045 A7 02 ...

Страница 45: ... SS CB SSH Legends Compressor model DSH485 except code 3 SSH CONTROL CIRCUIT LPS UNIT CONTROLLER SEPARATE SUPPLY KM DGT MPM S CB Fuses F1 Compressor contactor KM High pressure safety switch HP Safety pressure switch LPS Discharge gas thermistor embedded in compressor DGT Compressor motor M Motor Protection Module MPM Thermistor chain motor and discharge temperature S Surface sump heater SSH Therma...

Страница 46: ... MCI50CM DSH295 code 4 MCI50CM MCI50CM DSH381 code 4 MCI50CM MCI50CM DSH485 code 4 MCD201 055 MCD201 055 DSH485 code 3 MCD5 0195B T5 MCD5 0195B T5 MCI15C MCI25C MCI50CM replaces the contactor KM All settings such as initial torque ramp up time less than 0 5 sec and ramp down time are preset and do not require any modification See wiring diagram MCI25M MCI50CM requires a by pass contactor K1 This c...

Страница 47: ...s t a y s i n h e a t i n g m o d e E X V o p e n e d t o t r a n s f e r l i q u i d f r o m o u t d o o r t o i n d o o r e x c h a n g e r t h a n k s t o p r e s s u r e d i ff e r e n c e W h e n p r e s s u r e s a r e a l m o s t b a l a n c e d c h a n g e 4 W V t o c o o l i n g m o d e W h e n p r e s s u r e s a r e a l m o s t b a l a n c e d c h a n g e 4 W V t o h e a t i n g m o d e...

Страница 48: ...Two types of pump down exist One shot pump down preferred when last compressor of the circuit stops suction presssure is decreased 1 5bar 22psi below nominal evaporating pressure with minimum of 1 7bar g 25psig Even if suction pressure increases again the compressor will not restart Continuous pump down traditional pump down Compressor restarts automatically when suction pressure increases up to 4...

Страница 49: ... failure Requirements Solutions DSH compressors are delivered with 100ppm moisture level At the time of commissioning system moisture content may be up to 100ppm During operation the filter drier must reduce this to a level between 20 and 50ppm To achieve this requirement a properly sized and type of drier is required Important selection criteria s include driers water content capacity system refr...

Страница 50: ... when lifting the compressor Use lifting equipment rated and certified for the weight of the compressor or compressor assembly A spreader bar rated for the weight of the compressor is highly recommended to ensure a better load distribution The use of lifting hooks closed with a clasp is recommended For tandem and trio assemblies use a spreader bar and all compressor rings as shown in picture below...

Страница 51: ...ded to use double tipped torch using acetylene to ensure a uniform heating of connection For discharge connections brazing time should be less than 2 minutes to avoid NRVI damages if any To enhance the resistance to rust a varnish on the connection is recommended Before eventual un brazing of the compressor or any system component the refrigerant charge must be removed System pressure test and lea...

Страница 52: ...quid phase while compressor is running by slowly throttling liquid in Never bypass safety low pressure switch For more detailed information see Recommended refrigerant system charging practice FRCC EN 050 Several tests have been performed on each compressor at the factory between each phase and ground Dielectric strength test is done with a high potential voltage hi pot of 2Un 1000V AC at least an...

Страница 53: ...face sump heaters must be energized at least 6 hours in advance to remove refrigerant A quicker start up is possible by jogging the compressor to evacuate refrigerant Start the compressor for 1 second then wait for 1 to 2 minutes After 3 or 4 jogs the compressor can be started This operation must be repeated for each compressor individually The system must be monitored after initial startup for a ...

Страница 54: ...UCT INFORMATION SYSTEM DESIGN INTEGRATION INTO SYSTEM ORDERING INFORMATION Dismantal and disposal Danfoss recommends that compressors and compressor oil should be recycled by a suitable company at its site 54 FRCC PC 045 A7 02 ...

Страница 55: ...0 35 4 125 276 DSH381 760 29 9 600 23 6 900 35 4 172 379 DSH485 760 29 9 600 23 6 900 35 4 189 417 Compressor model Nbr Length Width Height Gross weight Static stacking pallets mm inch mm inch mm inch kg lbs DSH090 8 1150 45 3 950 37 4 680 26 8 494 1089 2 DSH105 8 1150 45 3 950 37 4 750 29 5 544 1199 2 DSH120 8 1150 45 3 950 37 4 750 29 5 544 1199 2 DSH140 8 1150 45 3 950 37 4 750 29 5 566 1248 2 ...

Страница 56: ...184 120H1186 DSH105 Brazed Internal 120H1188 120H1190 120H1192 120H1194 DSH120 Brazed Internal 120H1196 120H1198 120H1200 120H1202 DSH140 Brazed Internal 120H1204 120H1206 120H1208 120H1210 DSH161 Brazed Internal 120H1212 120H1214 120H1216 120H1218 DSH184 Brazed Internal 120H1220 120H1222 120H1224 120H1226 DSH240 Brazed Module 24V AC 120H1159 120H1119 120H1151 120H1135 Brazed Module 110 240V 120H1...

Страница 57: ...84 Brazed Internal 120H1221 120H1223 120H1225 120H1227 DSH240 Brazed Module 24V AC 120H1160 120H1120 120H1136 Brazed Module 110 240V 120H1162 120H1122 120H1138 DSH295 Brazed Module 24V AC 120H1164 120H1124 120H1140 Brazed Module 110 240V 120H1166 120H1126 120H1142 DSH381 Brazed Module 24V AC 120H1168 120H1128 120H1144 Brazed Module 110 240V 120H1170 120H1130 120H1146 DSH485 Brazed Module 24V AC 12...

Страница 58: ...1 Left 120Z0709 Right DSH482 DSH240 DSH240 Left 7777041 7777045 for 50Hz 120z0495 for 60Hz Right DSH535 DSH240 DSH295 Left 7777037 Right DSH590 DSH295 DSH295 Left 7777041 Right DSH620 DSH240 DSH381 Left 7777048 Right DSH675 DSH295 DSH381 Left 7777037 Right DSH725 DSH240 DSH485 Left 120Z0569 Right DSH760 DSH381 DSH381 Left 7777041 Right DSH780 DSH295 DSH485 Left 120Z0551 Right DSH865 DSH381 DSH485 ...

Страница 59: ...184 DSH184 DSH184 Left 120Z0685 Right DSH720 DSH240 DSH240 DSH240 Left 120Z0673 7777045 for 50Hz or 120Z0495 for 60Hz Right 7777039 DSH885 DSH295 DSH295 DSH295 Left 120Z0673 Right 7777039 DSH1140 DSH381 DSH381 DSH381 Left 120Z0686 Right 120Z0688 DSH1245 DSH381 DSH381 DSH485 Left 7777063 Right DSH1350 DSH381 DSH485 DSH485 Left 7777063 Right DSH1455 DSH485 DSH485 DSH485 Left 7777040 Right For exampl...

Страница 60: ... size 8156131 Gasket 1 1 4 Models with 1 1 4 rotolock connection Multipack 10 7956002 Gasket 1 1 4 Models with 1 1 4 rotolock connection Industry pack 50 8156132 Gasket 1 3 4 Models with 1 3 4 rotolock connection Multipack 10 7956003 Gasket 1 3 4 Models with 1 3 4 rotolock connection Industry pack 50 8156133 Gasket 2 1 4 Models with 2 1 4 rotolock connection Multipack 10 7956004 Gasket 2 1 4 Model...

Страница 61: ... 1 1 8 DSH240 295 381 Multipack 4 120Z0547 Valve set V03 2 1 4 1 5 8 V10 1 3 4 1 3 8 DSH485 Multipack 4 diameter restriction Code no Description Application Packaging Pack size 7705006 Electronic soft start kit MCI 15 C DSH090 Single pack 1 7705007 Electronic soft start kit MCI 25 C DSH105 to 184 Single pack 1 037N0401 Electronic soft start kit MCI50CM DSH240 295 381 Single pack 1 175G5205 Electro...

Страница 62: ...ulation CE UL DSH240 295 381 485 Multipack 6 120Z0377 56W 400V surface sump heater bottom insulation CE UL DSH240 295 381 485 Multipack 6 120Z0378 56W 460V surface sump heater bottom insulation CE UL DSH240 295 381 485 Multipack 6 120Z0379 56W 575V surface sump heater bottom insulation CE UL DSH240 295 381 485 Multipack 6 Discharge temperature protection Code no Description Application Packaging P...

Страница 63: ...5 mm DSH184 DSH140 code3 DSH161 code3 DSH240 295 381 Multipack 10 8173331 T block connector 80x80 mm DSH240 295 381 code 3 DSH485 Multipack 10 120Z0458 Terminal box 210 x 190 mm incl cover DSH240 295 381 485 Single pack 1 120Z0150 Terminal box cover DSH381 code 3 Single pack 1 120Z0604 Terminal box 210x340mm incl cover DSH485 code 3 Single pack 1 except code 3 Code no Description Application Packa...

Страница 64: ...69 Suction washer grommets sleeve for oil connect DSH725 Single pack 1 120Z0550 Suction washer grommets sleeve for oil connect DSH865 Single pack 1 120Z0551 Suction washer grommets sleeve for oil connect DSH780 Single pack 1 120Z0578 Suction washer grommets sleeve for oil connect DSH970 Single pack 1 Trio kits Code no Description Application Packaging Pack Size 120Z0672 Organ pipe sleeves rigid sp...

Страница 65: ...12 Tandem assemblies drawing Page15 Wiring connections Updated DSH424 DSH479 DSH565 models to DSH424X DSH479X DSH565X and its related data Added DSH360X DS456X models Page12 Updated drawing number 5 in tandem assemblies drawing Page15 Wiring connections 65 FRCC PC 045 A7 02 ...

Страница 66: ...oned us as distinct variable speed technology specialists Today we operate from engineering and manufacturing facilities spanning across three continents FRCC PC 045 A7 02 Danfoss DCS CC 2018 03 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 dan...

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