Performer® scroll compressors in parallel installation SH Range

Performer® scroll compressors in parallel installation

SH Range - R410A

MAKING MODERN LIVING POSSIBLE

APPLICATION GUIDELINES

3

CONTENTS

GENERAL OVERVIEW ........................................................................................ 5Benefi ts .............................................................................................................................................5Scope .................................................................................................................................................5Design challenge ...........................................................................................................................5 Oil equalisation ................................................................................................................5 Interconnecting piping design...................................................................................6 Compressor sequence ...................................................................................................6 Cycling .................................................................................................................................6 Cost eff ectiveness and serviceability .......................................................................6 Operating envelope .......................................................................................................6 Oil return ............................................................................................................................6OIL MANAGEMENT CONCEPTS ........................................................................ 7Static systems .................................................................................................................................7TECHNICAL SPECIFICATIONS .......................................................................... 850 Hz ..................................................................................................................................................860 Hz ..................................................................................................................................................8OPERATING ENVELOPES .................................................................................. 9SYSTEM DESIGN RECOMMENDATIONS ........................................................ 1 0Thermostatic expansion valve ............................................................................................... 1 0Refrigerant charge limits ......................................................................................................... 1 0Pressure switch settings .......................................................................................................... 1 0Essential piping designconsiderations ............................................................................... 1 0Cycle rate limit ............................................................................................................................. 1 1INSTALLATION & SERVICE .............................................................................. 1 2Handling ........................................................................................................................................ 1 2Compressor mounting ............................................................................................................ 1 2Tightening torques .................................................................................................................... 1 2Tandem and trio piping design ............................................................................................ 1 3Wiring and rotation direction ............................................................................................... 1 3Oil level .......................................................................................................................................... 1 3Failure analysis ........................................................................................................................... 1 3Oil equalisation connection .................................................................................................. 1 3CODE NUMBER INFORMATION ...................................................................... 1 4Ordering information ................................................................................................................ 1 4TANDEM UNITS SH182 TO SH760 .................................................................. 1 5Operation principle .................................................................................................................. 1 5TANDEM UNITS SH182212242282322 .................................................... 1 6Composition of tandem ........................................................................................................... 1 6Compressor mounting ............................................................................................................. 1 7Oil equalisation connection ................................................................................................... 1 7Composition of the kit ............................................................................................................. 1 7TANDEM UNITS SH195210230 .................................................................... 1 8Composition of tandem ........................................................................................................... 1 8Compressor mounting ............................................................................................................ 1 8Oil equalisation connection ................................................................................................... 1 9Suction washer ............................................................................................................................ 1 9Composition of the kit ............................................................................................................. 1 9TANDEM UNITS SH260281301 .................................................................... 2 0Composition of tandem ........................................................................................................... 2 0Compressor mounting ............................................................................................................. 2 0Oil equalisation connection ................................................................................................... 2 1Suction washer ............................................................................................................................ 2 1Composition of the kit ............................................................................................................. 2 1TANDEM UNITS SH304324345 .................................................................... 2 2Composition of tandem ........................................................................................................... 2 2Compressor mounting ............................................................................................................ 2 2Oil equalisation connection ................................................................................................... 2 3

Suction washer ............................................................................................................................ 2 3Composition of the kit ............................................................................................................. 2 3TANDEM UNITS SH360482600760 ............................................................ 2 4Composition of tandem ........................................................................................................... 2 4Compressor mounting ............................................................................................................. 2 5Oil equalisation connection ................................................................................................... 2 5Composition of the kit ............................................................................................................. 2 5TANDEM UNITS SH368 ................................................................................... 2 6Composition of tandem ........................................................................................................... 2 6Compressor mounting ............................................................................................................. 2 6Oil equalisation connection ................................................................................................... 2 7Composition of the kit ............................................................................................................. 2 7TANDEM UNITS SH420540680 .................................................................... 2 8Composition of tandem ........................................................................................................... 2 8Compressor mounting ............................................................................................................. 2 9Oil equalisation connection ................................................................................................... 2 9Suction washer ............................................................................................................................ 2 9Composition of the kit ............................................................................................................. 2 9TANDEM UNITS SH480 ................................................................................... 3 0Composition of tandem ........................................................................................................... 3 0Compressor mounting ............................................................................................................. 3 0Oil equalisation connection ................................................................................................... 3 0Suction washer ............................................................................................................................ 3 1Composition of the kit ............................................................................................................. 3 1TANDEM UNITS SH620 ................................................................................... 3 2Composition of tandem ........................................................................................................... 3 2Compressor mounting ............................................................................................................. 3 2Oil equalisation connection ................................................................................................... 3 2Suction washer ............................................................................................................................ 3 3Composition of the kit .............................................................................................................. 3 3TRIO UNITS SH550 TO 1140 ........................................................................... 3 5Operation principle ................................................................................................................... 3 5TRIO UNITS SH5507209001140 LEFT SUCTION ...................................... 3 6Composition of trio.................................................................................................................... 3 6Compressor mounting ............................................................................................................. 3 7Oil equalisation connection ................................................................................................... 3 7Suction washer ............................................................................................................................ 3 7Composition of the kit .............................................................................................................. 3 7TRIO UNITS SH550720900 RIGHT SUCTION ............................................. 3 8Composition of trio.................................................................................................................... 3 8Compressor mounting ............................................................................................................. 3 9Oil equalisation connection ................................................................................................... 3 9Suction washers .......................................................................................................................... 3 9Composition of the kit ............................................................................................................. 3 9TRIO UNITS SH1140 RIGHT SUCTION .......................................................... 4 0Composition of trio.................................................................................................................... 4 0Compressor mounting ............................................................................................................. 4 0Oil equalisation connection ................................................................................................... 4 1Suction washer ............................................................................................................................ 4 1Composition of the kit ............................................................................................................. 4 1SUCTION WASHER SELECTION ...................................................................... 4 2Tandem models .......................................................................................................................... 4 2Trio models ................................................................................................................................... 4 3Compressor position and suction header side ............................................................... 4 3

4

CONTENTS

5

Oil equalisation Contrary to semi hermetic compressors, suction gas in a hermetic compressor flows via the oil sump which makes it more difficult to maintain equal pressu-re in the sumps of parallel compressors. Since oil equalisation usually depends

on equal sump pressures this is a point of special attention. Danfoss Commer-cial Compressors has developed spe-cially adapted oil equalisation systems which ensure proper oil balancing between the compressors .

Design challenge Parallel systems have to ensure correct compressor operation, oil manage-

ment and reliability, which requires evaluation and testing.

GENERAL OVERVIEW

Benefi ts A parallel compressor installation re-fers to a system of interconnected compressors with a common suction line and common discharge line. The technique of mounting compressors in parallel, also called manifolding, has several benefits.

The main reason is reduced operating cost through greater control of capa-city and power consumption. This is achieved by staggering compressor switch-on sequences that allow the parallel system to match its power with the capacity needed.

A second reason for manifolding is improved part load efficiency. In a parallel installation the individual compressor(s) can be switched off

while the other compressor(s) keep operating at 100% load. Therefore the part load efficiency is very near the full load efficiency. Conventional fixed speed compressor unloading methods impose a serious penalty for part load efficiency, mainly at low load operation.

Third, working with parallel systems allows for standardisation of compres-sors. As an example, the capacity range 10, 15, 20, 25 and 30 Tons can be cove-red with 5 individual compressors. But the same needs can be covered with only a 10 Tons and a 15 Tons model mounted in parallel, thus reducing the number of different compressor mo-del to be stocked from 5 to 2.

Scope These application guidelines describe the operating characteristics, design features and application requirements for the Performer® SH scroll compressor in air conditioning and heat pump ap-plications. The guidelines are not valid for refrigeration applications, which re-quire dedicated compressors and more specific installations precautions.

To ensure proper parallel installation and running conditions, the following

recommendations must be followed:

It is essential to respect all instructions given in these guidelines, the instruc-tion leaflet delivered with each com-pressor and the Selection & Application Guidelines for single compressors.

For additional system components related to specific application require-ments, the supplier recommendations must always be respected.

6

Interconnecting piping design

This is an area where the manufacturer can use its research and testing capa-bilities to the users benefits. All factory designed parallel systems pass the cri-tical 500 hours run test to qualify the piping configuration. This is not easily achieved with “field” erected systems

which are often affected by infancy problems such as pipe vibrations, noi-se or ultimately pipe ruptures.

Using factory designed and tested pa-rallel systems guarantees predictable reliability.

GENERAL OVERVIEW

Compressor sequence The operating sequence should be ar-ranged in such way that the running

time of the compressors is equalised as much as possible.

Cycling As a part of the design and develop-ment process at Danfoss Commercial Compressors it is verified that oil ma-nagement and piping resistance meet engineering specifications at any cy-cling frequency.

The system must be designed in a way that guarantees a minimum compres-sor running time of 2 minutes to pro-vide sufficient motor cooling after its start and a proper oil return. Note that the oil return may vary as it is a func-tion of the system design.

Cost eff ectiveness and serviceability

In today’s business climate, machine simplicity and low cost are main requi-rements. Performer® SH scroll tandem and trio configurations are compact designs but they ensure easy mainte-

nance and service because refrigera-tion circuit connections, oil change, compressor wiring and compressor replacement are taken into account from the earliest design stage.

Operating envelope The domain of application, the types of refrigerant are evaluated to meet

the requirements of the intended ap-plications.

Oil return There is one last challenge which falls under the responsibility of the system designers and end users : proper oil re-turn from the circuit.

Whatever the design of the parallel compressor system, good oil return from the circuit is prerequisite for the success of the equipment.

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This is one of the most simple and cheapest ways of manifolding com-pressors. Compressor sumps and low pressure shells are interconnected. An interconnecting pipe, on the lower part of the compressor (below the oil level), ensures oil balancing. The suc-tion header design is critical, as it en-sures a pressure drop balancing and equal distribution of oil returning from the system when all compressors are running.

The success of such a system relies very much on the sizing of the pipe work, small differences in sump pres-sure can result in significant oil level variations.

This system is limited to three com-pressors in parallel, and needs perfect suction tube balancing.

OIL MANAGEMENT CONCEPTS

Static systems

As mentioned before, one of the chal-lenges of manifolding is oil manage-ment. To ensure suitable oil distribu-

tion, the static system as descibed hereafter is used for SH compressors.

Oil equaliser

* : SH 184 : Preliminary data Available end 2008

for +15°C evap. temp; +68°C cond. temp under nominal voltage 400V - 3 - 50 Hz / 460V - 3 - 60 Hz displacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz

ModelNominal

tons 60 HzTR

Nominal cooling capacity Powerinput

kW

Max opera-

ting current

A

Effi ciency Sound powerdB(A)

Displace-

ment

m3/hW Btu/h

COPW/W

E.E.R.Btu/h /W

50 H

z Tandem

SH182 15 44600 152200 14.38 32.2 3.10 10.58 73.0 30.8SH195 16.5 49150 167700 15.66 35.4 3.14 10.71 73.8 33.4SH210 17.5 52300 178300 16.65 37.2 3.14 10.71 74.4 35.7SH212 18 53700 183200 16.94 38.6 3.17 10.81 74.5 36.0SH230 19.5 57000 194500 18.05 40.5 3.16 10.78 74.4 38.5SH242 20 60000 204400 18.92 42.2 3.17 10.80 75.5 40.6SH260 22 64700 220600 20.32 45.5 3.18 10.86 75.5 43.4SH281 23 68800 234600 21.61 47.8 3.18 10.86 76.0 46.7SH282 24 69400 236800 21.72 48.8 3.20 10.90 75.5 46.2SH301 25 73500 250800 23.01 51.1 3.19 10.90 76.0 49.5

SH304 * 25 74650 254550 23.16 51.9 3.22 10.99 77.6 49.9SH322 26 77600 264800 24.3 53.4 3.19 10.90 76.5 52.8

SH324 * 27 79350 270750 24.56 55.2 3.23 11.02 77.6 52.7SH345 * 28 83450 284750 25.85 57.5 3.23 11.02 77.9 56.0SH360 30 88000 300600 27.46 64.2 3.20 10.95 83.0 59.2

SH368 * 30 89300 304700 27.4 61.6 3.26 11.12 79.0 59.2SH420 35 104400 356600 32.5 74.2 3.21 10.97 84.1 69.2SH480 40 121300 414300 37.74 86.2 3.21 10.98 84.1 79.3SH482 40 120800 412600 37.54 84.2 3.22 10.99 85.0 79.2SH540 45 137700 470300 42.78 96.2 3.22 10.99 85.0 89.3SH600 50 154600 528000 48.02 108.2 3.22 11.00 85.0 99.4SH620 50 150800 515000 46.96 103.6 3.21 10.97 86.1 99.6SH680 55 167700 572700 52.2 115.6 3.21 10.97 86.1 109.7SH760 60 180800 617400 56.38 123 3.21 10.95 87.0 120.0

Trio

SH550 45 132000 450900 41.19 96.3 3.20 10.95 84.8 88.8SH720 60 181200 618900 56.31 126.3 3.22 10.99 86.8 118.8SH900 75 231900 792000 72.03 162.3 3.22 11.00 86.8 149.1

SH1140 90 271200 926100 84.57 184.5 3.21 10.95 88.8 180

60 H

z Tandem

SH182 15 54200 185000 17.14 33.6 3.16 10.79 75.0 37.2SH195 16.5 59200 202000 18.53 36.1 3.19 10.90 76.1 40.4SH210 17.5 63900 217900 19.82 38.2 3.22 10.99 76.8 43.2SH212 18 64200 219000 19.92 38.6 3.22 10.99 77.0 43.6SH230 19.5 69400 236800 21.51 41.3 3.23 11.01 77.5 46.5SH242 20 73600 250800 22.5 42.8 3.27 11.15 78.0 49.2SH260 22 79100 269700 24.19 45.9 3.27 11.15 78.5 52.5SH281 23 84000 286300 25.68 48.4 3.27 11.15 79.1 56.5SH282 24 84600 288600 25.88 49 3.27 11.15 79.0 55.8SH301 25 89500 305200 27.37 51.5 3.27 11.15 79.5 59.8

SH304 * 25 90800 309653 27.7 52.8 3.28 11.18 79.8 60.4SH322 26 94400 321800 28.86 54 3.27 11.15 80.0 63.8

SH324 * 27 96300 328553 29.39 55.9 3.28 11.18 80.1 63.7SH345 * 28 101200 345153 30.88 58.4 3.28 11.18 80.5 67.7SH360 30 107400 366800 32.9 64.2 3.26 11.15 88.0 71.4

SH368 * 30 108000 368506 32.9 62.8 3.28 11.20 81.0 71.6SH420 35 127200 434400 38.93 74.9 3.27 11.16 88.5 83.5SH480 40 146700 501000 45.16 86.3 3.25 11.09 88.5 95.7SH482 40 147000 502000 44.96 85.6 3.27 11.17 89.0 95.6SH540 45 166500 568600 51.19 97 3.25 11.11 89.0 107.8SH600 50 186000 635200 57.42 108.4 3.24 11.06 89.0 120.0SH620 50 183100 625300 56.5 106.4 3.24 11.07 90.1 120.1SH680 55 202600 691900 62.73 117.8 3.23 11.03 90.1 132.3SH760 60 219200 748600 68.04 127.2 3.22 11.00 91.0 144.6

Trio

SH550 45 161100 550200 49.35 96.3 3.26 11.15 89.8 107.1SH720 60 220500 753000 67.44 128.4 3.27 11.17 90.8 143.4SH900 75 279000 952800 86.13 162.6 3.24 11.06 90.8 180

SH1140 90 328800 1122900 102.06 190.8 3.22 11.00 92.8 216.9

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TECHNICAL SPECIFICATIONS

Rating conditions: SH compressorsRefrigerant R410AFrequency 50 Hz / 60 HzStandard rating conditions ARI standardEvaporating temperature 7.2 °CCondensing temperature 54.4 °CSub-cooling 8.3 KSuperheat 11.1 K Subject to modifi cation without prior notifi cation

For full data details and capacity tables refer to Online Datasheet Generator http://cc.danfoss.com

TR= Ton of Refrigeration COP= Coeffi cient Of Performance

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OPERATING ENVELOPES

The parallel assemblies recommended design from Danfoss Commercial Com-pressors have been qualified to ensure there is no impact on the compressor operating envelopes. Consequently, the Performer® scroll tandem and trio assemblies have the operating limits as shown below.

More details can be found in the Se-lection and Application Guidelines for Performer® SH scroll compressors refe-rence FRCC.PC.007.

10

20

30

40

50

60

70

75

-30 -25 -20 -15 -10 -5 0 5 10 15 20

Evap. temp. (°C)

Co

nd

.te

mp

. (°C

)

SH = 11,1 K

R410A

Tandem: SH182 to 760Trio: SH550 to 1140

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SYSTEM DESIGN RECOMMENDATIONS

Please refer to the Selection and Ap-plication Guidelines for Performer® SH scroll compressors reference FRCC.PC.007. for general system design re-commendations that are valid for sin-gle compressors as well as for parallel systems.

Typical system requirements and re-commendations for parallel installa-tions are listed below.

Thermostatic expansion valve

When the parallel installation is ser-ving a single evaporator system the dimensioning of the thermostatic ex-pansion valve (TXV) becomes critical and must be made in relation to both minimum and maximum capacity. This will ensure correct superheat control in all situations, with the minimum of 5K superheat at the compressor suc-tion. The superheat setting of the ex-pansion device should be sufficient to ensure proper superheat levels during low loading periods. A minimum of 5K stable superheat is required.In addition, the refrigerant charge should be sufficient to ensure proper

subcooling within the condenser so as to avoid the risk of flashing in the liquid line before the expansion de-vice. The expansion device should be sized to ensure proper control of the refrigerant flow into the evaporator. An oversized valve may result in erratic control. This consideration is especially important in manifolded units where low load conditions may require the frequent cycling of compressors. This can lead to liquid refrigerant entering the compressor if the expansion valve does not provide stable refrigerant su-perheat control under varying loads.

Pressure switch settings The pump down pressure switch must have a set point slightly higher than the lowest compressor safety pressure switch set point. The high-pressure sa-fety pressure switch shall stop all com-

pressors. Please refer to Performer® SH scroll compressors single application guidelines reference FRCC.PC.007. for recommended settings.

Essential piping designconsiderations

Proper piping practices should be em-ployed to ensure adequate oil return, even under minimum load conditions with special consideration given to the size and slope of the tubing coming from the evaporator. Tubing returns from the evaporator should be de-

signed so as to not trap oil and to pre-vent oil and refrigerant migration back to the compressor during off cycles. A double suction riser may be required for low load operation if suction gas velocity is not sufficient to ensure pro-per oil return.

Refrigerant charge limits Compressor modelsRefrigerant charge

limit (kg)

Tandem units

SH182 8.0

SH195-210-230 8.5

SH212-242-260-281-282-301-304-322-324-345-368 10.5

SH360-420-480-482-540-600 17.5

SH620-680-760 17.5

Trio units SH550-720-900 23

SH1140 24.5

HP

LP>4 m/s

0.5% >

max. 4 m

0.5%<

U-trap

>4m/sEvaporator

8 to 12 m/s

max. 4 m

HP

LP

Condenser

11

Cycle rate limit The system must be designed in a way that guarantees a minimum compres-sor running time of 2 minutes so as to provide for sufficient motor cooling after start-up along with proper oil re-turn. Note that the oil return may vary since it depends upon system design.

There must be no more than 12 starts per hour; a number higher than 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 Performer® SH scroll compressors application guideli-nes. A three-minute (180-sec) timeout is recommended.

If the evaporator lies above the com-pressor, as is often the case in split or remote condenser systems, the addi-tion of a pump-down cycle is strongly recommended. If a pump-down cycle is omitted, the suction line should have a loop at the evaporator outlet to prevent refrigerant from draining into the compressor during off-cycles.

If the evaporator was situated below the compressors, the suction riser must be trapped so as to prevent li-quid refrigerant from collecting at the thermal bulb location.

When the condenser is mounted at a higher position than the compressors, a suitably sized “U”-shaped trap close to the compressors is necessary to pre-vent oil leaving the compressor from draining back to the discharge side of the compressors during off cycle.

The upper loop also helps avoid liquid refrigerant from draining back to the compressor when stopped.

Piping should be designed with ade-quate three-dimensional flexibility. It should not be in contact with the surrounding structure, unless a proper tubing mount has been installed. This protection proves necessary to avoid excess vibration, which can ultimately result in connection or tube failure due to fatigue or wear from abrasion. Aside from tubing and connection da-mage, excess vibration may be trans-mitted to the surrounding structure and generate an unacceptable noise level within that structure as well (for more information on noise and vibra-tion, see section "Sound and vibration management" in Performer® SH scroll compressors application guidelines).

SYSTEM DESIGN RECOMMENDATIONS

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INSTALLATION & SERVICE

Installation and service procedures for a parallel system are similar to basic system installations. The selection of additional system components for pa-rallel installations follows the basic sys-

tem common rules. Please refer to the Selection and Application Guidelines for Performer® SH scroll compressors (FRCC.PC.007) for detailed installation and service procedures.

Compressor mounting A common base frame, rigid enough to support the weight of the compres-sors, must be used for installation. The common frame must always be moun-ted on grommets to reduce transmis-sion of vibration to the floor. It is re-commended to install all control and safety devices on an independent fra-me. These devices should be connec-ted to the common frame using flexi-ble tubing.

Suction and discharge lines must have adequate three dimensional flexibi-lity. For parallel systems the simplest means of acquiring this is by the use of vibration absorbers.

For details see compressors mounting for each tandem/trio arrangement.

Tightening torque 15Nm


4 mm

60*

14*

SH090 to

SH184



6 mm Thickness

80*28* Tightening

torque 16Nm

SH180to

SH380

Handling Danfoss Commercial Compressors re-commends using the lift and handling devices, as shown in picture beside, and that the following procedure be used to prevent damage.

Two lift rings are provided on each compressor. Use all four rings. Maximum loads authorized per sling and for the hoist hook must not be lower than the weight of the assem-bly.

The minimum spreader bar length must be at least equal to the centre distance between the two compres-sors to prevent bending the frame. When lifting, use a spreader block between the compressors to prevent any unit frame damage. When the tandem unit is already mounted into an installation, never

lift the complete installation by using the lift rings on the compressors.

Spreader block Spreader bar

Slings

Frame

Tightening torques

* Example of recommendation

Not suppliedØ 8 x 75 mm Not supplied

Ø 8 x 75 mm

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Tandem and trio piping design

For each tandem and trio configuration specific outline drawings are available as indicated on the following pages. These drawings must always be respected.

No changes shall be made to the in-dicated tubing diameter and fitting types.

The oil equalisation line shall be made of copper tube and assembled in such a way that it does not extend above the connection height and must be horizontal so as not to trap oil.

Wiring and rotation direction

All compressors in a tandem and trio unit must be electrically wired indivi-dually.Compressors should run with the cor-rect rotation direction. This can be

achieved by having the correct phase sequence on each compressor motor terminal (L1-T1, L2-T2, L3-T3).

INSTALLATION & SERVICE

Oil level The oil must be checked before com-missioning (1/2 to full of the oil sight glass). Check the oil level again after a minimum of 2 hours operation at no-minal conditions. In most installations the initial compressor oil charge will be sufficient. In installations with line runs exceeding 20 m or with many oil traps, additional oil may be required. Normally the quantity of oil added should be no more than 2% of the to-tal refrigerant charge (this percentage does not take into account oil contai-ned in accessories such as suction ac-

cumulators, liquid receiver, or oil traps).If this amount has already been added and the oil level in the compressors keeps decreasing, the oil return in the installation is insufficient. A piping de-sign checking is required.

During operation, the oil level in the sight glass of the compressors may fluctuate. The oil level can be checked directly after the system has stopped. In this case the level must be at about 1/3 minimum in the oil sight glass.

Failure analysis When one compressor in a parallel system fails, the chance of foreign par-ticles entering other compressors is greatly increased. Therefore a failure

analysis must be done quickly to insu-re further proper running conditions for the overall installation (i.e. : oil ana-lysis).

Oil equalisation connection

Danfoss Commercial Compressors has developed specially adapted oil equali-sation systems which ensure proper oil balancing between the compressors.Hence, Performer® SH scroll compressors are equipped with rotolock connections:

SH090 to 184: 1" 3/4 rotolock connec-tion allowing use of 1”3/4 - 7/8" or 1"3/4 - 1"1/8.

SH180 to 380: 2"1/4 rotolock connec-tion allowing the use of 2"1/4 - 1"3/8 (tandem) or 2"1/4 - 1"5/8 sleeve (trio).

14

Ordering information To build a complete tandem, one must order the 2 compressors and the Tan-dem kit see their codes page 15. To build a trio, one must order 3 com-pressors and the trio kit see codes page 35.For example : Tandem SH 210- Compressor 1 : SH090 Code number 120H0004 (Industrial pack)- Compressor 2 : SH 120 Code number 120H0014 (Industrial pack)- Tandem kit : SH210 Code number 7777043.

Performer® SH scroll compressors can be ordered in either industrial packs or in single packs. Please use the code numbers from be-low tables for ordering.Refer of the FRCC.PC.007 for the pac-kaging information.

CODE NUMBER INFORMATION

Compressormodel

Pack Nbr ConnectionsMotor

protection

Code no.

3 4 6 7 9

200-230/3/60 460/3/60400/3/50 230/3/50 575/3/60

500/3/50 380/3/60

SH090Industrial 8 Brazed Internal 120H0002 120H0004 120H0006 120H0008 120H0010

Single 1 Brazed Internal 120H0001 120H0003 120H0005 120H0007 120H0009









SH180

Industrial 6

Brazed M 24 120H0266 120H0268 - 120H0270 120H0272

Brazed M 230 120H0274 120H0276 - 120H0278 120H0280

Brazed M 115 120H0282 120H0284 - 120H0286 120H0288

Single 1

Brazed M 24 120H0265 120H0267 - 120H0269 120H0271

Brazed M 230 120H0273 120H0275 - 120H0277 120H0279

Brazed M 115 120H0281 120H0283 - 120H0285 120H0287

SH184 *Industrial 6 Brazed Internal 120H0360 120H0362 120H0364 120H0366 120H0368


SH240

Industrial 6Brazed M 24 120H0290 120H0292 - 120H0294 120H0296

Brazed M 115 - 230 120H0298 120H0300 - 120H0302 120H0304

Single 1Brazed M 24 120H0289 120H0291 - 120H0293 120H0295

Brazed M 115 - 230 120H0297 120H0299 - 120H0301 120H0303

SH300


Brazed M 115 - 230 120H0236 120H0240 - 120H0244 120H0248


Brazed M 115 - 230 120H0235 120H0239 - 120H0243 120H0247

SH380**


Brazed M 115 - 230 120H0252 120H0256 - 120H0260 120H0264


Brazed M 115 - 230 120H0251 120H0255 - 120H0259 120H0263

M24: Electronic motor protection, module located in terminal box 24 V,M230: Electronic motor protection, module located in terminal box 230 V,M115-230: Electronic motor protection, module located in terminal box 115/230 V,M115: Electronic motor protection, module located in terminal box 115V

* SH184 : available end 2008** SH380 code n°3 and 9: available end 2008

15

Operation principle SH 182 to SH 760 tandems use the static system to balance the oil level between the compressors. Each of the compressors may run alone to provide proper capacity for part load opera-tion. The system has been designed

to ensure a precise pressure balancing between the sumps, facilitating the oil equalisation by gravity. The discharge line is shown with two tees, to indicate that both left and right side discharge header are possible.

TANDEM UNITS SH182 TO SH760

Tandem model Composition Suction DischargeKit tandem

Code No

Outline drawing number

Left suction connection Right suction connection

SH182 SH090 + SH090 1"3/8 1"3/8 7777044 8556044P01 8556044P02

SH195 SH105 + SH090 1"5/8 1"3/8 7777043 8556045P05 8556045P06

SH210 SH120 + SH090 1"5/8 1"3/8 7777043 8556045P01 8556045P02

SH212 SH105 + SH105 1"5/8 1"3/8 7777044 8556044P07 8556044P08

SH230 SH090 + SH140 1"5/8 1"3/8 7777043 8556045P09 8556045P10

SH242 SH120 + SH120 1"5/8 1"3/8 7777044 8556044P03 8556044P04

SH260 SH140 + SH120 1"5/8 1"3/8 7777042 8556045P07 8556045P08

SH281 SH161 + SH120 1"5/8 1"3/8 7777042 8556045P03 8556045P04

SH282 SH140 + SH140 1"5/8 1"3/8 7777044 8556044P09 8556044P010

SH301 SH140 + SH161 1"5/8 1"3/8 7777042 - -

SH304 * SH120 + SH184 1"5/8 1"3/8 7777052 8556052P07 8556052P08

SH322 SH161 + SH161 1"5/8 1"3/8 7777044 8556044P05 8556044P06

SH324 * SH140 + SH184 1"5/8 1"3/8 7777052 8556052P05 8556052P06

SH345 * SH161 + SH184 1"5/8 1"3/8 7777052 8556052P03 8556052P04

SH360 SH180 + SH180 2"1/8 1"3/8 7777041 8556035P06 8556035P03

SH368 * SH184 + SH184 1"5/8 1"3/8 7777053 8556052P01 8556052P02

SH420 SH240 + SH180 2"1/8 1"3/8 7777037 8556042P05 8556042P02

SH480 SH300 + SH180 2"1/8 1"3/8 7777038 8556042P06 8556042P03

SH482 SH240 + SH240 2"1/8 1"3/8 7777041 8556035P04 8556035P01

SH540 SH300 + SH240 2"1/8 1"3/8 7777037 8556042P04 8556042P01

SH600 SH300 + SH300 2"1/8 1"3/8 7777041 8556035P05 8556035P02

SH620 SH240 + SH380 2"1/8 1"3/8 7777048 8556042P10 8556042P09

SH680 SH300 + SH380 2"1/8 1"3/8 7777037 8556042P07 8556042P08

SH760 SH380 + SH380 2"1/8 1"3/8 7777041 8556035P08 8556035P07

* SH184 : available end 2008

Suction left1”3/8

SH090

SH090

1”1/8

Oil equalisation7/8”

Discharge left1”3/8

7/8”

SH182

See detail A

Cp2

Cp1

Suction left1"5/8

1"3/8

Oil equalisation7/8"

1"3/8

7/8"Discharge left1"3/8

SH 212 - 242 - 282 - 322

See detail A

152Mini

240 Mini

16

Composition of tandem

TANDEM UNITS SH182212242282322

Detail A

* : Example for the voltage code 4 (industrial pack).Refer to page 15 for other codes or single pack version

Tandem SH182 SH212 SH242 SH282 SH322

Compressor 1Model SH090 SH105 SH120 SH140 SH161

Code n°* 120H0004 120H0212 120H0014 120H0202 120H0024

Compressor 2Model SH090 SH105 SH120 SH140 SH161

Code n°* 120H0004 120H0212 120H0014 120H0202 120H0024

Kit Code n° 7777044

Respect indicated compressor positions


17

Compressor mounting The tandem rail assembly is fixed on the unit frame using the flexible grommets supplied with the compressor. The compressors are fixed on the rails (not included) using the 4 mm flat washers

, 14 mm rigid spacer , included in the "tandem kit" reference 7777044 (to be ordered with the compressors). An additional 7mm rigid spacer must be placed under the rail grommets (see beside drawing).

Supplied with the compressorIncluded in 7777044 kitNot supplied

Composition of the kit


The level of oil naturally balances by a pipe of 7/8". The kit 7777044 include 1"3/4 - 7/8" adaptator sleeves and new Teflon seals to connect the 7/8" equalisa-tion pipe on 1"3/4 oil connectors.

Tighteningtorque 90 Nm


Kit code number 7777044

Designation Ref. Qty.

Flat washer Thickness 4 mm 6301028P01 8

Rigid spacer Thickness 7 mm 5311629P01 8


Equalisation sleeve 1“ 3/4 Rotolock - 7/8“ ODF 5311144P07 2

Tefl on Seal 5607001P01 2

18


Compressor mounting The tandem is fixed on the frame using the flexible grommets supplied with the compressor.

The compressors are fixed on the rails (not included) using the 4 mm flat washers , 14 mm rigid spacer , in-cluded in the “tandem kit” reference 7777043 (to be ordered with the com-pressors).

An additional 7 mm rigid spacer must be placed under the rail grom-mets (see beside drawing).


SH 090

SH 105 SH 120SH 140

Because SH090 is 7 mm smaller than SH 105, SH120, SH140 and in order to have the oil equalisation connection at

the same level for both compressors, an additionnal 7mm rigid spacer must be added under the SH090 feet.

Supplied with the compressorIncluded in 7777043 kit

Not supplied

SH090Cp2

7/8” 7/8”


Suction right 1”5/8

1”1/8

Oil equalisation7/8”1”3/8

SH 195 - 210 - 230

See detail A152Mini

240 Mini

Detail A

Tandem SH195 SH210 SH230

Compressor 1Model SH090 SH090 SH090

Code n° * 120H0004 120H0004 120H0004


Code n°* 120H0212 120H0014 120H0202




, or


19

on SH 120 if main suction comes from the left for SH210

or

on SH 90 if main suction comes from the right for SH210

or

on SH105 for SH195



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 is also function of the configuration of the suction pipe.For tandem SH195:Suction from left or right: add restrictor (copper color) diameter 23 mm, at

suction of the compressor SH 105.For tandem SH210:Two profi les proposed:- Suction from the left: add restrictor

(black color) diameter 25 mm, at suction of the compressor SH 120.- Suction from the right: add restrictor

(black color) diameter 24 mm, at suction of the compressor SH 090.For tandem SH230:No restrictor is required.


The level of oil naturally balances by a pipe of 7/8”.

The kit 7777043 includes 1”3/4 - 7/8" adaptator sleeves & Teflon seals to connect the 7/8" equalisation pipe on 1”3/4 oil connectors.






Equalisation sleeve 1” 3/4 Rotolock - 7/8“ ODF 5311144P07 2


Restrictor (black color) ∅ 25 mm int (∅ 35 mm ext) 5312497P01 1


Restrictor (copper color) ∅ 23 mm int (∅ 35 mm ext) 5312497P03 1

Cp2

Cp1

1”3/8Oil equalisation 7/8”

1”3/8

Suction left 1”5/8

SH260 - 281 - 301

See detail A

Discharge left 1”3/8

152Mini

240 Mini

Detail A

20


The compressors are fixed on the rails (not included) using the 4mm flat washers , 14mm rigid spacer , in-cluded in the “tandem kit” reference 7777042 (to be ordered with the com-pressors).

An additional 7mm rigid spacer must be placed under the rail grom-mets (see beside drawing).


Supplied with the compressorIncluded in 7777042 KitNot supplied

Composition of tandem Tandem SH260 SH281 SH301


Code n° * 120H0014 120H0014 120H0202


Code n°* 120H0202 120H0024 120H0024


* : Example for the voltage code 4 (industrial pack).Refer to page 15 for other codes or single pack version.


21


Suction washer Due to the difference of capacities of the compressors, it is essential to equalise the pressure of the sump. For tandem SH260:Two profiles proposed:- Suction from the right: add a restric-tor , at suction connection of the SH120.- Suction from the left: no restrictor. For tandem SH281:Suction from the left: add a restric-tor , at suction connection of the SH120.Suction from the right: add a restric-tor , at suction connection of the SH120.For tandem SH301:Suction from left or right: add restric-tor (white color) diameter 26 mm, at suction of the compressor SH 140.

or or



The level of oil naturally balances by a pipe of 7/8”.

The kit 7777042 include 1”3/4 - 7/8" adaptator sleeves & Teflon seals to connect the 7/8" equalisation pipe on 1”3/4 oil connectors.







Equalisation sleeve 1” 3/4 Rotolock - 7/8“ ODF 5311144P07 2


Restrictor ∅ 25 mm (black color) 5312497P01 1

Restrictor ∅ 23 mm (copper color) 5312497P03 1

Restrictor ∅ 26 mm (white color) 5312497P05 1

22



The compressors are fixed on the rails (not included) using the 4 mm flat washers , 14 mm rigid spacer , in-cluded in the “tandem kit” reference 7777052 (to be ordered with the com-pressors).

An additional 7 mm rigid spacer must be placed under the rail grom-mets (see beside drawing).


SH 120SH 140SH 161

SH 184

Because SH 120, 140 and 161 are 7 mm smaller than SH 184 and in order to have the oil equalisation connection at the same level for both compres-

sors, an additionnal 7mm rigid spacer must be added under the SH 120,

140 or 161 feet.

Supplied with the compressorIncluded in 7777052 kit

Not supplied

Cp1

7/8” 7/8”



1”3/8

Oil equalisation1”1/81”3/8

SH 304 - 324 - 345

See detail A

SH184

152Mini

240 Mini

Detail A



Code n° * 120H0014 120H0202 120H0024


Code n°* 120H0362 120H0362 120H0362




, or


23



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 is also function of the configuration of the suction pipe.For tandem SH304:Suction from left or right, add a restrictor (copper color) diameter 23 mm at the suction of the compressor SH 120.For tandem SH324:Suction from left or right, add a restrictor (black color) diameter 24 mm at the suction of the compressor SH 140.For tandem SH345:Suction from left or right, add a restrictor (white color) diameter 26 mm at the suction of the compressor SH 161.


The level of oil naturally balances by a pipe of 1"1/8.

The kit 7777052 includes 1”3/4 - 1"1/8 adaptator sleeves & Teflon seals to connect the 1"1/8 equalisation pipe on 1”3/4 oil connectors.






Equalisation sleeve 1” 3/4 Rotolock - 1"1/8 ODF 5311139P02 2


Restrictor (white color) ∅ 26 mm int (∅ 35 mm ext) 5312497P05 1


Restrictor (copper color) ∅ 23 mm int (∅ 35 mm ext) 5312497P03 1

Cp2Cp1

Oil equalisation1”3/8


Discharge right 1”3/8

1”5/8

1”1/8 (2x)

Suctionleft

SH360 - 482

See detail A

Cp2

Cp1

Oil equalisation 1”3/8

Suctionright 2”1/8


1”5/8

1”1/8 (2x)

Suction left

SH600 - 760

Dischargeleft 1”3/8

See detail A

211Mini

320 Mini

Detail A

24



* : Example for the voltage code 4 (Industrial pack and motor protection M115-230 (M230 for SH 180)).Refer to page 15 for other codes, other motor protection or single pack version.

Tandem SH360 SH482 SH600 SH760

Compressor 1Model SH180 SH240 SH300 SH380

Code n° * 120H0276 120H0300 120H0240 120H0256

Compressor 2Model SH180 SH240 SH300 SH380

Code n° * 120H0276 120H0300 120H0240 120H0256





HM8 x 75

Ø 24 Ø 10

25

Compressor mounting The tandem is fixed on the frame by using grommet sleeves , flat washers

, washers and the grommets , provided in the kit 7777041.



The level of oil naturally balances by a pipe of 1”3/8. To fix this oil connec-tion equalisation rotolock, the adap-tor sleeves : 2”1/4 - 1”3/8 and Teflon seals , included in the kit 7777041 must be used.



Kit code number 7777041 (Left and Right Suction)

Designation Ref Qty

Grommet Sleeves M X05090234P01 6

Flat Washers LL10Z 6301011 6

Washers 5603010P01 6

Grommets 5603009P02 6

Sleeve 2"1/4 Rotolock - 1"3/8 ODF 5311145P08 2

Tefl on Seal ∅ 50,8 mm 5607001P04 2

SH184

SH184

Suction left1"5/8

1"3/8

Oil equalisation1"1/8

1"3/8

7/8"Discharge left1"3/8

SH 368

See detail A152Mini

240 Mini

26


TANDEM UNITS SH368

Detail A


Tandem SH368

Compressor 1Model SH184

Code n°* 120H0362


Code n°* 120H0362



Compressor mounting The tandem rail assembly is fixed on the unit frame using the flexible grommets supplied with the compressor. The compressors are fixed on the rails (not included) using the 4 mm flat washers

, 14 mm rigid spacer , included in the "tandem kit" reference 7777053 (to be ordered with the compressors). An additional 7mm rigid spacer must be placed under the rail grommets (see beside drawing).

Supplied with the compressorIncluded in 7777053 kitNot supplied

HM8 x 75

Ø 24 Ø 10

27



The level of oil naturally balances by a pipe of 1"1/8. The kit 7777053 include 1"3/4 - 1"1/8" adaptator sleeves and new Teflon seals to connect the 1"1/8" equali-sation pipe on 1"3/4 oil connectors.


TANDEM UNITS SH368






Equalisation sleeve 1“ 3/4 Rotolock - 1"1/8 ODF 5311139P02 2


211Mini

320 Mini

Detail A

Cp2

Cp1

SH 420 - 540

1”1/8 (x 2)

1”5/8

Suction right2”1/8

Suction left



1”5/8

See detail A

SH380

SH300

SH680

1”1/8 (x 2)

1”5/8


Suction left

Discharge right1”3/8


1”5/8

28



* : Example for the voltage code 4 (Industrial pack and motor protection M115-230 (M230 for SH 180)).Refer to page 15 for other codes, other motor protection or single pack version.



Code n° * 120H0276 120H0300 120H0240


Code n° * 120H0300 120H0240 120H0256






HM8 x 75

Ø 24 Ø 10

29





Suction washer Due to the difference of capacities of the compressors, it is essential to equalise the pressure of the sump. Hence, a restrictor must be added on suction connection of the smallest compressor:

For SH420 tandem:• on the suction of the compressor SH180.For SH540 tandem:• on the suction of the compressor SH240.For SH680 tandem:• on the suction of the compressor SH300.









Adaptor Sleeves 2"1/4 Rotolock - 1"3/8 ODF 5311145P08 2

Tefl on Seals ∅ 50.8 mm 5607001P04 2

Suction Restrictor ∅ 31 mm 5311579P01 1

SH300

SH180

SH 480

1”1/8 (x 2)

1”5/8


Suction left



1”5/8

See detail A

211Mini

320 Mini

Detail A

Included in 7777038 KitSupplied with the compressor

Not supplied

Tightening torque 120 Nm

HM8 x 75

Ø 24 Ø 10

30

TANDEM UNITS SH480

Compressor mounting Compressors SH180 & SH300 to be manifolded, should be ordered with specific references.

As manifoldable compressors, they are supplied with adapted grommet to be fixed on the tandem rail.

The tandem is fixed on the frame by using grommet sleeves , flat washers



The level of oil naturally balances by a pipe of 1”3/8. To fix this oil connec-tion equalisation rotolock, the adaptor sleeves : 2”1/4 - 1”3/8 and Teflon seal , included in the kit 7777038 must be used.

Composition of tandem Tandem SH480


Code n°* 120H0276


Code n° * 120H0240


* : Example for the voltage code 4 (Indus-trial pack and motor protection M115-230 (M230 for SH180)).Refer to page 15 for other codes, other motor protection or single pack version.


31

Suction washer Due to the difference of capacities of the compressors, it is essential to equa-lise the pressure of the sump. Hence, a restrictor must be added on the suction of the compressor SH180.


TANDEM UNITS SH480








Tefl on Seals ∅ 50.8 mm 5607001P04 2


211Mini

320 Mini

Detail A

SH380

SH240

SH620

1”1/8 (x 2)

1”5/8


Suction left



1”5/8

See detail A

Tightening

torque 120 Nm

HM8 x 75

Ø 24 Ø 10

32





TANDEM UNITS SH620

Composition of tandem Tandem SH620


Code n°* 120H0300


Code n° * 120H0256


* : Example for the voltage code 4 (Industrial pack and motor protection M115-230).Refer to page 15 for other codes, other motor protection or single pack version.


Not supplied


33

Suction washer Due to the difference of capacities of the compressors, it is essential to equa-lise the pressure of the sump. Hence, a restrictor must be added on the suction of the compressor SH240.


TANDEM UNITS SH620








Tefl on Seals ∅ 50.8 mm 5607001P04 2


Right suction connection

Left suction connection

Right discharge connection

Left discharge connection

35

TRIO UNITS SH550 TO 1140

Operation principle SH550 to SH1140 trio use the static sys-tem to balance the oil level between the compressors. Each of the compres-sors may run alone to provide proper capacity for part load operation. The system has been designed to ensure

a precise pressure balancing between the sumps, facilitating the oil equali-sation by gravity. The discharge line is shown with three tees, to indicate that both left and right side discharge hea-der are possible.

Trio model Composition Suction DischargeKit Trio

Code noTrio drawing

number

SH550 3 x SH180 2"5/8 1"5/87777040*7777039**

8556038P04*8556038P02**

SH720 3 x SH240 2"5/8 1"5/87777040*7777039**

8556038P03*8556038P01**

SH900 3 x SH300 2"5/8 1"5/87777040*7777039**

8556043P03*8556043P01**

SH1140 3 x SH380 2"5/8 1"5/87777040*7777049**

8556043P04*8556043P02**

* Left suction connection** Right suction connection

Cp 3

Cp 2

Cp 1

SH 550 - 720

1”1/8 (x3)


1”5/8Suction left 2”5/8

Suctionright


2”1/8See detail A

Cp3

Cp2

Cp1

SH 900- 1140

1”1/8 (x3)


1”5/8

Suction left 2”5/8

Suctionright


2”1/8

See detail A

211Mini

530 Mini

Detail A

36

TRIO UNITS SH5507209001140 LEFT SUCTION

* : Example for the voltage code 4 (Industrial pack and motor protection M115-230 (M230 for SH180)).Refer to page 15 for other codes, other motor protection or single pack version.

Composition of trio Trio SH550 SH720 SH900 SH1140

3 IdenticalsCompressors

Model SH180 SH240 SH300 SH380

Code n° * 120H0276 120H0300 120H0240 120H0256


HM8 x 75

Ø 24 Ø 10

37

Compressor mounting The Trio is fixed on the frame by using grommet sleeves , flat washers , washers and grommets , provided in the kit 7777040.


Not supplied

TRIO UNITS SH5507209001140 LEFT SUCTION

Suction washer One suction washer must be pla-ced in compressors number 3 of trio SH550, 720, 900 and 1140





Kit code number 7777040 (Left Suction)







Tefl on Seals ∅ 50.8 mm 5607001P04 3

Suction Washer∅ 33 mm 5311579P02 1

Cp3

Cp2

Cp1

SH 900

1”1/8 (x3)


1”5/8

Suction left



2”1/8See detail A

Cp3

Cp2

Cp1

SH 550 - 720

1”1/8 (x3)

Discharge lef1”5/8

1”5/8

Suction left



2”1/8See detail A

211Mini

530 Mini

Detail A

38

TRIO UNITS SH550720900 RIGHT SUCTION

* : Example for the voltage code 4 (Industrial pack and motor protection M115-230 (M230 for SH180)).Refer to page 15 for other codes , other motor protection or single pack version.

Composition of trio Trio SH550 SH720 SH900


Model SH180 SH240 SH300

Code n° * 120H0276 120H0300 120H0240


39

Compressor mounting The Trio is fixed on the frame by using grommet sleeves , flat washers , washers and grommets , provi-ded in the kit 7777039.


Not supplied


Suction washers Suction washers must be placed in compressors 1 & 3 on trio SH550-720 and 900





Kit code number 7777039 (Right Suction)







Tefl on Seals ∅ 50.8 mm 5607001P04 3

Suction Washer ∅ 34.5 mm 5311579P03 2

HM8 x 75

Ø 24 Ø 10

Cp3

Cp2

Cp1

SH 1140

1”1/8 (x3)


1”5/8

Suction left



2”1/8

See detail A

211Mini

530 Mini

Detail A


Not supplied

HM8 x 75

Ø 24 Ø 10

40


Compressor mounting The trio is fixed on the frame by using grommet sleeves , flat washers , washers and grommets , provi-ded in the kit 7777049.

Composition of trio Trio SH1140


Model SH380

Code n° * 120H0256


* : Example for the voltage code 4 (Industrial pack and motor protection M115-230).Refer to page 15 for other codes, other motor protection or single pack version.

41




Suction washer No suction washer required for this trio.



Kit code number 7777049 (Right Suction)







Tefl on Seals ∅ 50.8 mm 5607001P04 3

CP1 CP2 Tandem Model Suction fromKit code n°

to orderWasher reference

Washer Diam (mm)

Washer in suction of

SH 090 + SH 090 = SH 182 Left 7777044 Not neededRight

SH 090 + SH 105 = SH 195 Left 7777043 5312497P03 23 CP2Right 5312497P03 23 CP2





SH 120 + SH 140 = SH 260 Left 7777042 Not neededRight 5312497P01 25 CP1



SH 140 + SH 161 = SH 301 Left 7777042 5312497P05 26 CP1Right















Tandem models

42

SUCTION WASHER SELECTION

CP1 CP2 CP3 Trio Model Suction fromKit code n°

to orderWasher reference

Washer Diam (mm)

Washer in suction of

SH 180 + SH 180 + SH 180 = SH 550 Left 7777040 5311579P02 33 CP3Right 7777039 5311579P03 34.5 CP1 & CP3



SH 380 + SH 380 + SH 380 = SH 1140 Left 7777040 5311579P02 33 CP3Right 7777049 Not needed

CP 2 CP 3CP 1

Left suction

CP 2 CP 3CP 1

Right suction

Compressor position and suction header side

Trio models

43

SUCTION WASHER SELECTION

Controls for Commercial Refrigeration

Controls forIndustrial Refrigeration

Industrial Automation

Household Compressors Commercial Compressors ThermostatsSub-Assemblies

Electronic Controls & Sensors

FRCC.EC.008.A3.02 - September 2008 Produced by Danfoss CC-DSS.09-2008

The Danfoss product range for therefrigeration and air conditioning industry

Danfoss Refrigeration & Air Conditioning is

a worldwide manufacturer with a leading

position in industrial, commercial and

supermarket refrigeration as well as air

conditioning and climate solutions.

We focus on our core business of making

quality products, components and systems

that enhance performance and reduce

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We are off ering a single source for one of the widest ranges of innovative refrigeration

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Performer® scroll compressors in parallel installation SH Range

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Transcript of Performer® scroll compressors in parallel installation SH Range