performer® scroll compressors in parallel installation sh range
TRANSCRIPT
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.
7
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
8
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
9
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
10
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
12
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
Tightening torque 15Nm
4 mm
60*
14*
SH090 to
SH184
Tightening torque 55Nm
Tightening torque 44Nm
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
13
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
SH105Industrial 8 Brazed Internal 120H0210 120H0212 120H0214 120H0216 120H0218
Single 1 Brazed Internal 120H0209 120H0211 120H0213 120H0215 120H0217
SH120Industrial 8 Brazed Internal 120H0012 120H0014 120H0016 120H0018 120H0020
Single 1 Brazed Internal 120H0011 120H0013 120H0015 120H0017 120H0019
SH140Industrial 8 Brazed Internal 120H0200 120H0202 120H0204 120H0206 120H0208
Single 1 Brazed Internal 120H0199 120H0201 120H0203 120H0205 120H0207
SH161Industrial 8 Brazed Internal 120H0022 120H0024 120H0026 120H0028 120H0030
Single 1 Brazed Internal 120H0021 120H0023 120H0025 120H0027 120H0029
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
Single 1 Brazed Internal 120H0359 120H0361 120H0363 120H0365 120H0367
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
Industrial 4Brazed M 24 120H0234 120H0238 - 120H0242 120H0246
Brazed M 115 - 230 120H0236 120H0240 - 120H0244 120H0248
Single 1Brazed M 24 120H0233 120H0237 - 120H0241 120H0245
Brazed M 115 - 230 120H0235 120H0239 - 120H0243 120H0247
SH380**
Industrial 4Brazed M 24 120H0250 120H0254 - 120H0258 120H0262
Brazed M 115 - 230 120H0252 120H0256 - 120H0260 120H0264
Single 1Brazed M 24 120H0249 120H0253 - 120H0257 120H0261
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
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
Oil equalisation connection
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
TANDEM UNITS SH182212242282322
Kit code number 7777044
Designation Ref. Qty.
Flat washer Thickness 4 mm 6301028P01 8
Rigid spacer Thickness 7 mm 5311629P01 8
Rigid spacer Thickness 14 mm 5311629P02 8
Equalisation sleeve 1“ 3/4 Rotolock - 7/8“ ODF 5311144P07 2
Tefl on Seal 5607001P01 2
18
Composition of tandem
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).
TANDEM UNITS SH195210230
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”
Discharge left1”3/8
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
Compressor 2Model SH105 SH120 SH140
Code n°* 120H0212 120H0014 120H0202
Kit Code n° 7777043
* : Example for the voltage code 4 (industrial pack).Refer to page 15 for other codes or single pack version
Respect indicated compressor positions
, or
Tighteningtorque 90 Nm
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
TANDEM UNITS SH195210230
Composition of the kit
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.
Oil equalisation connection
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.
Kit code number 7777043
Designation Ref. Qty.
Flat washer Thickness 4 mm 6301028P01 8
Rigid spacer Thickness 7 mm 5311629P01 12
Rigid spacer Thickness 14 mm 5311629P02 8
Equalisation sleeve 1” 3/4 Rotolock - 7/8“ ODF 5311144P07 2
Tefl on Seal 5607001P01 2
Restrictor (black color) ∅ 25 mm int (∅ 35 mm ext) 5312497P01 1
Restrictor (black color) ∅ 24 mm int (∅ 28 mm ext) 5312497P02 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
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 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).
TANDEM UNITS SH260281301
Supplied with the compressorIncluded in 7777042 KitNot supplied
Composition of tandem Tandem SH260 SH281 SH301
Compressor 1Model SH120 SH120 SH140
Code n° * 120H0014 120H0014 120H0202
Compressor 2Model SH140 SH161 SH161
Code n°* 120H0202 120H0024 120H0024
Kit Code n° 7777042
* : Example for the voltage code 4 (industrial pack).Refer to page 15 for other codes or single pack version.
Respect indicated compressor positions
21
TANDEM UNITS SH260281301
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
Composition of the kit
Oil equalisation connection
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.
Tighteningtorque 90 Nm
Kit code number 7777042
Designation Ref. Qty.
Flat washer Thickness 4 mm 6301028P01 8
Rigid spacer Thickness 7 mm 5311629P01 8
Rigid spacer Thickness 14 mm 5311629P02 8
Equalisation sleeve 1” 3/4 Rotolock - 7/8“ ODF 5311144P07 2
Tefl on Seal 5607001P01 2
Restrictor ∅ 25 mm (black color) 5312497P01 1
Restrictor ∅ 23 mm (copper color) 5312497P03 1
Restrictor ∅ 26 mm (white color) 5312497P05 1
22
Composition of tandem
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 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).
TANDEM UNITS SH304324345
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”
Discharge left1”3/8
Suction right 1”5/8
1”3/8
Oil equalisation1”1/81”3/8
SH 304 - 324 - 345
See detail A
SH184
152Mini
240 Mini
Detail A
Tandem SH304 SH324 SH345
Compressor 1Model SH120 SH140 SH161
Code n° * 120H0014 120H0202 120H0024
Compressor 2Model SH184 SH184 SH184
Code n°* 120H0362 120H0362 120H0362
Kit Code n° 7777052
* : Example for the voltage code 4 (industrial pack).Refer to page 15 for other codes or single pack version
Respect indicated compressor positions
, or
Tighteningtorque 90 Nm
23
TANDEM UNITS SH304324345
Composition of the kit
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.
Oil equalisation connection
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.
Kit code number 7777052
Designation Ref. Qty.
Flat washer Thickness 4 mm 6301028P01 8
Rigid spacer Thickness 7 mm 5311629P01 12
Rigid spacer Thickness 14 mm 5311629P02 8
Equalisation sleeve 1” 3/4 Rotolock - 1"1/8 ODF 5311139P02 2
Tefl on Seal 5607001P01 2
Restrictor (white color) ∅ 26 mm int (∅ 35 mm ext) 5312497P05 1
Restrictor (black color) ∅ 24 mm int (∅ 35 mm ext) 5312497P06 1
Restrictor (copper color) ∅ 23 mm int (∅ 35 mm ext) 5312497P03 1
Cp2Cp1
Oil equalisation1”3/8
Suction right 2”1/8
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
Discharge right 1”3/8
1”5/8
1”1/8 (2x)
Suction left
SH600 - 760
Dischargeleft 1”3/8
See detail A
211Mini
320 Mini
Detail A
24
TANDEM UNITS SH360482600760
Composition of tandem
* : 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
Kit Code n° 7777041
Respect indicated compressor positions
Respect indicated compressor positions
Tighteningtorque 120 Nm
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.
Supplied with the compressorIncluded in 7777041 KitNot supplied
Oil equalisation connection
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.
Composition of the kit
TANDEM UNITS SH360482600760
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
Composition of tandem
TANDEM UNITS SH368
Detail A
* : Example for the voltage code 4 (industrial pack).Refer to page 15 for other codes or single pack version
Tandem SH368
Compressor 1Model SH184
Code n°* 120H0362
Compressor 2Model SH184
Code n°* 120H0362
Kit Code n° 7777053
Respect indicated compressor positions
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
Composition of the kit
Oil equalisation connection
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.
Tighteningtorque 90 Nm
TANDEM UNITS SH368
Kit code number 7777053
Designation Ref. Qty.
Flat washer Thickness 4 mm 6301028P01 8
Rigid spacer Thickness 7 mm 5311629P01 8
Rigid spacer Thickness 14 mm 5311629P02 8
Equalisation sleeve 1“ 3/4 Rotolock - 1"1/8 ODF 5311139P02 2
Tefl on Seal 5607001P01 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
Discharge right 1”3/8
Oil equalisation1”3/8
1”5/8
See detail A
SH380
SH300
SH680
1”1/8 (x 2)
1”5/8
Suction right2”1/8
Suction left
Discharge right1”3/8
Oil equalisation1”3/8
1”5/8
28
TANDEM UNITS SH420540680
Composition of tandem
* : 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 SH420 SH540 SH680
Compressor 1Model SH180 SH240 SH300
Code n° * 120H0276 120H0300 120H0240
Compressor 2Model SH240 SH300 SH380
Code n° * 120H0300 120H0240 120H0256
Kit Code n° 7777037
Respect indicated compressor positions
Respect indicated compressor positions
Tighteningtorque 120 Nm
Supplied with the compressorIncluded in 7777037 KitNot supplied
HM8 x 75
Ø 24 Ø 10
29
Compressor mounting The tandem is fixed on the frame by using grommet sleeves , flat washers
, washers and the grommets , provided in the kit 7777037.
Oil equalisation connection
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 7777037 must be used.
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.
Composition of the kit
TANDEM UNITS SH420540680
Kit code number 7777037 (Left and Right Suction)
Designation Ref. Qty.
Grommet Sleeves M X05090234P01 6
Flat Washers LL10Z 6301011 6
Washers 5603010P01 6
Grommets 5603009P02 6
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 right2”1/8
Suction left
Discharge right1”3/8
Oil equalisation1”3/8
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
, washers and the grommets , provided in the kit 7777038.
Oil equalisation connection
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
Compressor 1Model SH180
Code n°* 120H0276
Compressor 2Model SH300
Code n° * 120H0240
Kit Code n° 7777038
* : 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.
Respect indicated compressor positions
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.
Composition of the kit
TANDEM UNITS SH480
Kit code number 7777038 (Left and Right Suction)
Designation Ref. Qty.
Grommet Sleeves M X05090234P01 6
Flat Washers LL10Z 6301011 6
Washers 5603010P01 6
Grommets 5603009P02 6
Adaptor Sleeves 2"1/4 Rotolock - 1"3/8 ODF 5311145P08 2
Tefl on Seals ∅ 50.8 mm 5607001P04 2
Suction Restrictor ∅ 26 mm 5311579P04 1
211Mini
320 Mini
Detail A
SH380
SH240
SH620
1”1/8 (x 2)
1”5/8
Suction right2”1/8
Suction left
Discharge right1”3/8
Oil equalisation1”3/8
1”5/8
See detail A
Tightening
torque 120 Nm
HM8 x 75
Ø 24 Ø 10
32
Compressor mounting The tandem is fixed on the frame by using grommet sleeves , flat washers
, washers and the grommets , provided in the kit 7777048.
Oil equalisation connection
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 7777048 must be used.
TANDEM UNITS SH620
Composition of tandem Tandem SH620
Compressor 1Model SH240
Code n°* 120H0300
Compressor 2Model SH380
Code n° * 120H0256
Kit Code n° 7777048
* : 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.
Included in 7777048 KitSupplied with the compressor
Not supplied
Respect indicated compressor positions
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.
Composition of the kit
TANDEM UNITS SH620
Kit code number 7777048 (Left and Right Suction)
Designation Ref. Qty.
Grommet Sleeves M X05090234P01 6
Flat Washers LL10Z 6301011 6
Washers 5603010P01 6
Grommets 5603009P02 6
Adaptor Sleeves 2"1/4 Rotolock - 1"3/8 ODF 5311145P08 2
Tefl on Seals ∅ 50.8 mm 5607001P04 2
Suction Restrictor ∅ 29 mm 5311579P05 1
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)
Discharge left1”5/8
1”5/8Suction left 2”5/8
Suctionright
Oil equalisation1”5/8
2”1/8See detail A
Cp3
Cp2
Cp1
SH 900- 1140
1”1/8 (x3)
Discharge left1”5/8
1”5/8
Suction left 2”5/8
Suctionright
Oil equalisation1”5/8
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
Kit Code n° 7777040
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.
Included in 7777040 KitSupplied with the compressor
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
Composition of the kit
Oil equalisation connection
The level of oil naturally balances by a pipe of 1”5/8. To fix this oil connec-tion equalisation rotolock, the adap-tor sleeves : 2”1/4 - 1”5/8 and Teflon seals , included in the kit 7777040 must be used.
Tightening torque 120 Nm
Kit code number 7777040 (Left Suction)
Designation Ref. Qty.
Grommet Sleeves M X05090234P01 8
Flat Washers LL10Z 6301011 8
Washers 5603010P01 8
Grommets 5603009P02 8
Adaptor Sleeves 2"1/4 Rotolock - 1"5/8 ODF 5311140P03 3
Tefl on Seals ∅ 50.8 mm 5607001P04 3
Suction Washer∅ 33 mm 5311579P02 1
Cp3
Cp2
Cp1
SH 900
1”1/8 (x3)
Discharge left1”5/8
1”5/8
Suction left
Suction right2”5/8
Oil equalisation1”5/8
2”1/8See detail A
Cp3
Cp2
Cp1
SH 550 - 720
1”1/8 (x3)
Discharge lef1”5/8
1”5/8
Suction left
Suction right2”5/8
Oil equalisation1”5/8
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
3 IdenticalsCompressors
Model SH180 SH240 SH300
Code n° * 120H0276 120H0300 120H0240
Kit Code n° 7777039
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.
Included in 7777039 KitSupplied with the compressor
Not supplied
TRIO UNITS SH550720900 RIGHT SUCTION
Suction washers Suction washers must be placed in compressors 1 & 3 on trio SH550-720 and 900
Composition of the kit
Oil equalisation connection
The level of oil naturally balances by a pipe of 1”5/8. To fix this oil connec-tion equalisation rotolock, the adap-tor sleeves : 2”1/4 - 1”5/8 and Teflon seals , included in the kit 7777039 must be used.
Tightening torque 120 Nm
Kit code number 7777039 (Right Suction)
Designation Ref. Qty.
Grommet Sleeves M X05090234P01 8
Flat Washers LL10Z 6301011 8
Washers 5603010P01 8
Grommets 5603009P02 8
Adaptor Sleeves 2"1/4 Rotolock - 1"5/8 ODF 5311140P03 3
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)
Discharge left1”5/8
1”5/8
Suction left
Suction right2”5/8
Oil equalisation1”5/8
2”1/8
See detail A
211Mini
530 Mini
Detail A
Included in 7777049 KitSupplied with the compressor
Not supplied
HM8 x 75
Ø 24 Ø 10
40
TRIO UNITS SH1140 RIGHT SUCTION
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
3 IdenticalsCompressors
Model SH380
Code n° * 120H0256
Kit Code n° 7777049
* : 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
TRIO UNITS SH1140 RIGHT SUCTION
Oil equalisation connection
The level of oil naturally balances by a pipe of 1”5/8. To fix this oil connec-tion equalisation rotolock, the adap-tor sleeves : 2”1/4 - 1”5/8 and Teflon seals , included in the kit 7777049 must be used.
Suction washer No suction washer required for this trio.
Composition of the kit
Tightening torque 120 Nm
Kit code number 7777049 (Right Suction)
Designation Ref. Qty.
Grommet Sleeves M X05090234P01 8
Flat Washers LL10Z 6301011 8
Washers 5603010P01 8
Grommets 5603009P02 8
Adaptor Sleeves 2"1/4 Rotolock - 1"5/8 ODF 5311140P03 3
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 090 + SH 120 = SH 210 Left 7777043 5312497P01 25 CP2Right 5312497P02 24 CP1
SH 105 + SH 105 = SH 212 Left 7777044 Not neededRight
SH 090 + SH 140 = SH 230 Left 7777043 Not neededRight
SH 120 + SH 120 = SH 242 Left 7777044 Not neededRight
SH 120 + SH 140 = SH 260 Left 7777042 Not neededRight 5312497P01 25 CP1
SH 120 + SH 161 = SH 281 Left 7777042 5312497P01 25 CP1Right 5312497P03 23 CP1
SH 140 + SH 140 = SH 282 Left 7777044 Not neededRight
SH 140 + SH 161 = SH 301 Left 7777042 5312497P05 26 CP1Right
SH 120 + SH 184 = SH 304 Left 7777052 5312497P03 23 CP1Right
SH 161 + SH 161 = SH 322 Left 7777044 Not neededRight
SH 140 + SH 184 = SH 324 Left 7777052 5312479P06 35 CP1Right
SH 161 + SH 184 = SH 345 Left 7777052 5312479P05 26 CP1Right
SH 180 + SH 180 = SH 360 Left 7777041 Not neededRight
SH 184 + SH 184 = SH 368 Left 7777053 Not neededRight
SH 180 + SH 240 = SH 420 Left 7777037 5311579P01 31 CP1Right 5311579P01 31 CP1
SH 180 + SH 300 = SH 480 Left 7777038 5311579P04 26 CP1Right 5311579P04 26 CP1
SH 240 + SH 240 = SH 482 Left 7777041 Not neededRight
SH 240 + SH 300 = SH 540 Left 7777037 5311579P01 31 CP1Right 5311579P01 31 CP1
SH 300 + SH 300 = SH 600 Left 7777041 Not neededRight
SH 240 + SH 380 = SH 620 Left 7777048 5311579P05 29 CP1Right 5311579P05 29 CP1
SH 300 + SH 380 = SH 680 Left 7777037 5311579P01 31 CP1Right 5311579P01 31 CP1
SH 380 + SH 380 = SH 760 Left 7777041 Not neededRight
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 240 + SH 240 + SH 240 = SH 720 Left 7777040 5311579P02 33 CP3Right 7777039 5311579P03 34.5 CP1 & CP3
SH 300 + SH 300 + SH 300 = SH 900 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
total life cycle costs – the key to major
savings.
We are off ering a single source for one of the widest ranges of innovative refrigeration
and air conditioning components and systems in the world. And, we back technical
solutions with business solution to help your company reduce costs,
streamline processes and achieve your business goals.
Danfoss A/S • www.danfoss.com