Danfoss Performer SH090 Instruction Manual

MAKING MODERN LIVING POSSIBLE
Performer® scroll compressors
Single - SH090 to SH380
50 Hz - 60 Hz - R410A
Selection &
Application guidelines

APPLICATION GUIDELINES
2FRCC.PC.007.B5.02
CONTENT
SCROLL COMPRESSION PRINCIPLE.................................................................................................. 4
FEATURES...............................................................................................................................5
COMPRESSOR MODEL DESIGNATION............................................................................................... 6
Nomenclature ..................................................................................................................................................................6
TECHNICAL SPECIFICATIONS......................................................................................................... 7
50-60 Hz data ...................................................................................................................................................................7
DIMENSIONS ........................................................................................................................... 8
SH090-105-120-140* & 161* ......................................................................................................................................8
SH 140 & 161 code 3 & SH184 .................................................................................................................................... 9
SH180 brazed version...................................................................................................................................................10
SH180 rotolock version................................................................................................................................................10
SH240 - brazed version................................................................................................................................................11
SH240 - rotolock version.............................................................................................................................................11
SH300 - brazed version................................................................................................................................................12
SH300 - rotolock version.............................................................................................................................................12
SH380 (except SH380 code 3) ...................................................................................................................................13
SH380 code 3 (available in 2010).............................................................................................................................13
Connection details ........................................................................................................................................................14
ELECTRICAL DATA, CONNECTIONS AND WIRING ................................................................................ 15
Motor voltage .................................................................................................................................................................15
Wiring connections.......................................................................................................................................................15
IP rating .............................................................................................................................................................................17
Terminal box temperature..........................................................................................................................................17
Three phase electrical characteristics.....................................................................................................................17
Danfoss MCI soft-start controller .............................................................................................................................18
General wiring information........................................................................................................................................19
Motor protection ...........................................................................................................................................................21
Voltage imbalance.........................................................................................................................................................22
APPROVAL AND CERTIFICATIONS.................................................................................................. 23
Approvals and certificates..........................................................................................................................................23
Pressure Equipment Directive...................................................................................................................................23
Low voltage directive...................................................................................................................................................23
Machines directive ........................................................................................................................................................23
Internal free volume .....................................................................................................................................................23
OPERATING CONDITIONS ........................................................................................................... 24
Refrigerant and lubricants..........................................................................................................................................24
Motor supply...................................................................................................................................................................25
Compressor ambient temperature..........................................................................................................................25
Application envelope...................................................................................................................................................25
Discharge temperature protection ........................................................................................................................26
High and low pressure protection...........................................................................................................................26
Cycle rate limit ................................................................................................................................................................27

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 3
CONTENT
SYSTEM DESIGN RECOMMENDATIONS ............................................................................................ 28
General ..............................................................................................................................................................................28
Essential piping design considerations .................................................................................................................28
Refrigerant charge limit...............................................................................................................................................29
Off-cycle migration .......................................................................................................................................................30
Liquid flood back ...........................................................................................................................................................32
SPECIFIC APPLICATION RECOMMENDATIONS .................................................................................... 33
Low ambient application............................................................................................................................................33
Low load operation.......................................................................................................................................................34
Brazed plate heat exchangers...................................................................................................................................34
Electronic expansion valve.........................................................................................................................................34
Reversible heat pump systems.................................................................................................................................34
Water utilizing systems................................................................................................................................................36
SOUND AND VIBRATION MANAGEMENT.......................................................................................... 37
Starting sound level......................................................................................................................................................37
Running sound level.....................................................................................................................................................37
Stopping sound level ...................................................................................................................................................37
Sound generation in a refrigeration or air conditioning system..................................................................37
INSTALLATION ........................................................................................................................ 39
Compressor handling and storage..........................................................................................................................39
Compressor mounting.................................................................................................................................................39
Compressor holding charge ......................................................................................................................................40
System cleanliness.........................................................................................................................................................41
Tubing................................................................................................................................................................................41
Brazing and soldering ..................................................................................................................................................41
System pressure test.....................................................................................................................................................42
Leak detection ................................................................................................................................................................43
Vacuum evacuation and moisture removal .........................................................................................................43
Filter driers........................................................................................................................................................................43
Refrigerant charging.....................................................................................................................................................44
Insulation resistance and dielectric strength ......................................................................................................44
Commissioning...............................................................................................................................................................44
Oil level checking and top-up...................................................................................................................................44
ORDERING INFORMATION AND PACKAGING..................................................................................... 45
Packaging .........................................................................................................................................................................45
Ordering information...................................................................................................................................................46
ACCESSORIES ......................................................................................................................... 48

APPLICATION GUIDELINES
4FRCC.PC.007.B5.02
In a Performer® SH scroll compressor, the com-
pression is performed by two scroll elements lo-
cated in the upper part of the compressor.
Suction gas enters the compressor at the suc-
tion connection. As all of the gas flows around
and through the electrical motor, thus ensuring
complete motor cooling in all applications, oil
droplets separate and fall into the oil sump. After
exiting the electrical motor, the gas enters the
scroll elements where compression takes place.
Ultimately, the discharge gas leaves the compres-
sor at the discharge connection.
The figure below illustrates the entire compres-
sion process. The centre of the orbiting scroll (in
grey) traces a circular path around the centre of
the fixed scroll (in black). This movement creates
symmetrical compression pockets between the
two scroll elements. Low-pressure suction gas is
trapped within each crescent-shaped pocket as it
gets formed; continuous motion of the orbiting
scroll serves to seal the pocket, which decreases
in volume as the pocket moves towards the cen-
tre of the scroll set increasing the gas pressure.
Maximum compression is achieved once a pocket
reaches the centre where the discharge port is
located; this stage occurs after three complete
orbits. Compression is a continuous process: the
scroll movement is suction, compression and dis-
charge all at the same time.
SCROLL COMPRESSION PRINCIPLE
SUCTION
COMPRESSION
DISCHARGE

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 5
Gas circulation, motor cooling and oil behav-•
iour are improved on light commercial platform
models by a new patented motor cap design.
Part protection and assembly reduces internal•
leaks and increases life durability.
Improved part isolation reduces greatly acoustic•
levels.
Gas intake design induces higher resistance to•
liquid slugging.
SH range is composed of SH090-105-120-140-161
and 184 (light commercial platform) and SH180-
240-300 & 380 (large commercial platform).
The SH090-105-120-140-161 & 184 compressors
benefit from a further improved design to achieve
the highest efficiency.
FEATURES
Heat shield that lowers the heat
transfer between discharge and
suction gas and the acoustic level
New PTFE spring seal for even low-
er leaks
R410A optimised and dedicated
scroll profile
Patented motor cap
Liquid slug protection per suction
fitting in upper position
Patented motor centring spacer
Improved lower bearing centring
SH180 - 240 - 300 - 380
SH090 - 105 - 120 - 140 - 161 - 184

APPLICATION GUIDELINES
6FRCC.PC.007.B5.02
Performer® SH scroll compressors for R410A are
available as single compressors. The example
below presents the compressor nomenclature
which equals the technical reference as shown on
the compressor nameplate.
Code numbers for ordering are listed section
"Ordering information and packaging".
For tandem and trio assemblies, please refer
to the Performer® SH scroll compressor Parallel
Application Guidelines, FRCC.EC.008.
Nomenclature
COMPRESSOR MODEL DESIGNATION
Family, lubricant
& refrigerant
SH: Scroll, POE lubricant,
for R410A Motor protection
L: Internal overload protector
A: Electronic, 24V AC
B: Electronic, SH180: 230V
SH240-300-380: 115/230V
C: Customized electrical box
D: Electronic SH180: 115 V
F: Electronic, 24V DC
Suction and discharge connections
A: Brazed connections
M: Rotolock connections
Family,
lubricant
& refrigerant
Nominal
capacity Approvals Voltage Version Evolution index
Evolution index
A~Z
A4SH A AB300
Motor voltage code
3: 200-230V/3~/60 Hz
4: 380-400V/3~/50 Hz - 460V/3~/60 Hz
6: 230V/3~/50 Hz
7: 500V/3~/50 Hz - 575V/3~/60 Hz
9: 380V/3~/60 Hz
UL index
Nominal capacity
in thousand Btu/h at 60 Hz, R410A,
ARI conditions

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 7
50-60 Hz data
TECHNICAL SPECIFICATIONS
Model
Nominal
tons 60 Hz Nominal cooling capacity Power input COP E.E.R. Swept volume Displace- ment cOil charge Net weight d
TR W Btu/h kW W/W Btu/h/W cm3/rev m3/h dm3kg
50 Hz
SH090 7.5 22 300 76 100 7.19 3.10 10.59 88.40 15.40 3.0 58.0
SH105 9 26 850 91 600 8.47 3.17 10.80 103.50 18.00 3.3 64.0
SH120 10 30 000 102 200 9.46 3.17 10.80 116.90 20.30 3.3 64.0
SH140 12 34 700 118 400 10.86 3.19 10.90 133.00 23.12 3.3 67.0
SH161 13 38 800 132 400 12.15 3.19 10.90 151.70 26.40 3.3 69.0
SH184 15 44 650 152 500 13.73 3.25 11.10 170.30 29.60 3.6 71.5
SH180 15 44 000 150 300 13.73 3.21 10.95 170.20 29.60 6.7 106.0
SH240 20 60 400 206 300 18.77 3.22 11.00 227.60 39.60 6.7 108.0
SH300 25 77 300 264 000 24.01 3.22 11.00 285.50 49.70 6.7 153.0
SH380 30 90 400 308 700 28.19 3.21 10.95 345.00 60.00 7.2 164.0
60 Hz
SH090 7.5 27 100 92 500 8.57 3.16 10.79 88.40 18.60 3.0 58.0
SH105 9 32 100 109 500 9.96 3.22 11.00 103.50 21.80 3.3 64.0
SH120 10 36 800 125 400 11.25 3.27 11.15 116.90 24.60 3.3 64.0
SH140 12 42 300 144 300 12.94 3.27 11.15 133.00 27.90 3.3 67.0
SH161 13 47 200 160 900 14.43 3.27 11.15 151.70 31.90 3.3 69.0
SH184 15 54 000 184 400 16.45 3.28 11.20 170.30 35.80 3.6 71.5
SH180 15 53 700 183 400 16.45 3.27 11.15 170.20 35.70 6.7 106.0
SH240 20 73 500 251 000 22.48 3.27 11.15 227.60 47.80 6.7 108.0
SH300 25 93 000 317 600 28.71 3.24 11.05 285.50 60.00 6.7 153.0
SH380 e30 109 600 374 300 34.02 3.22 11.00 345.00 72.30 7.2 164.0
cDisplacement at nominal speed: 2900 rpm at 50 Hz, 3500 rpm at 60 Hz
dNet weight with oil charge
eAvailable in 2010
TR: Ton of Refrigeration, Standard rating conditions: ARI standard Evaporating temperature: 7.2 °C Superheat: 11.1 K
EER: Energy Efficiency Ratio Refrigerant: R410A Condensing temperature: 54.4 °C Subcooling: 8.3 K
COP: Coefficient Of Performance,
Subject to modification without prior notification.
For full data details and capacity tables refer to Online Datasheet Generator: www.danfoss.com/odsg

APPLICATION GUIDELINES
8FRCC.PC.007.B5.02
SH090-105-120-140* & 161*
(* except code 3)
DIMENSIONS
Flexible grommet
(1) 451
(2) 509
(1) 482
(2) 540
Ø 224
Ø 243
117 Oil sight glass
(1) 137
(2) 189
230
230
190.5
190.5
180
154
(1) 158
(2) 173
30°
30°
60°
4 x hole
Ø 19.05
(1) SH090
(2) SH105 - 120 - 140* & 161*
* except code 3
All dimensions in mm
Ø 22
(1) Ø 29
(2) Ø 35
(1) 235
(2) 278
(1) 94
(2) 101
(1) 94
(2) 101
Equalisation line
15 mm
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 9
SH 140 & 161 code 3 & SH184
DIMENSIONS
9
Flexible grommet
Ø 243
Oil sight
glass
Ø 243
(1) 278
(2) 300
(1) 101
(2) 108
(1) 101
(2) 108
(1) 509
(2) 525
(1) 540
(2) 555
(1) 155
(2) 170
157
4 x holes
Ø19.05
230
230
190.5
190.5
173
(1) 154
(2) 159
200
30°
30°
Ø 22
Ø 35
60° (1) SH140 & 161 code 3
(2) SH184
All dimensions in mm
Equalisation
line
15 mm
HM 8 bolt
Lock washer
Flat washer
Steel mounting
sleeve
Rubber grommet
Nut

APPLICATION GUIDELINES
10 FRCC.PC.007.B5.02
SH180 brazed version SH180 rotolock version
DIMENSIONS
Flexible grommetRigid spacer
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
28 mm
Compressor
base plate
Ø 265.9
Ø 317.8
198
Oil sight
glass
Equalisation
line
208.2
301
76.1
92
345.4
279.4
370.8
304.8
183
195
171
427
4 x holes Ø 19
All dimensions in mm
236
93
186
60°
60°
8°
617
652.5
Ø 265.9
Ø 317.8
Ø 257.5
652.5
Equalisation
line
617
198
208.2
301
345.4
279.4
183 156
304.8
370.8
60°
8°
186
183
60°
427
236
93
4 x holes
Ø 19
All dimensions in mm
531
92
76.1
HM 8 bolt
Lock washer
Flat washer
Rigid spacer
Nut
29.5 mm

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 11
SH240 - brazed version SH240 - rotolock version
DIMENSIONS
Flexible grommet
Rigid spacer
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
28 mm
Compressor
base plate
370.8
304.8
195
171
171
258
353
436
236
279.4
183
202.2
301
208
617
652.5
60°
60°
8°
345.4
76.1 92
4 x holes Ø 19
Ø 317.8
Ø 265.9
Oil sight
glass
Equalisation
line
All dimensions in mm
HM 8 bolt
Lock washer
Flat washer
Rigid spacer
Nut
29.5 mm
Ø 265.9
Ø 257.5
Equalisation
line
617
652.5 208
202.2
301
76.1
345.4
183
156
304.8
370.8
279.4
183 60°
8°
60°
258 All dimensions in mm
171
238
436
4 x holes Ø19
92
531
Ø 317.8

APPLICATION GUIDELINES
12 FRCC.PC.007.B5.02
DIMENSIONS
SH300 - brazed version SH300 - rotolock version
Flexible grommet
Rigid spacer
208
202.2
301
76.1
187
304.8
370.8
345.4
279.4
434
693
634
235
All dimensions in mm
183
183
258
171
60°
60°
8°
4 x holes
Ø 19.43
92
492
Ø 333.2
Ø 318.1
208
202.2
301
76.1
204
304.8
370.8
345.4
279.4
434
693
634
237
358
All dimensions in mm
183
195
258
171
60°
60°
8°
4 x holes
Ø 19.43
92
Ø 333.2
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
28 mm
Compressor
base plate
HM 8 bolt
Lock washer
Flat washer
Rigid spacer
Nut
29.5 mm

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 13
SH380 (except SH380 code 3) SH380 code 3 (available in 2010)
DIMENSIONS
Flexible grommet
Rigid spacer
666.3
208
725.3
202.2
301
370.8
304.8
195
76.1
345.4
279.4
204
183
183
60°
8°
434
235
171
258
359.8
All dimensions in mm
92
524.3
Ø 333.2
Ø 318.1
4 x holes
Ø 19.43
345.4
279.4
304.8 204
195
308.8
202.3
357
273
477
183
60°
60°
8°
370.8
4 x holes Ø 19.43
All dimensions in mm
725.3
666.3
277.4
171.6
301
76.1
92
524.3
Ø 333.2
Ø 318.1
HM 8 bolt
Lock washer
Flat washer
Steel mounting sleeve
Rubber grommet
Nut
28 mm
Compressor
base plate
HM 8 bolt
Lock washer
Flat washer
Rigid spacer
Nut
29.5 mm

APPLICATION GUIDELINES
14 FRCC.PC.007.B5.02
DIMENSIONS
Suction and discharge
connections
Oil drain connection
Oil sight glass All Performer® SH scroll compressors come
equipped with a sight glass (1"1/8 - 18 UNF) which
may be used to determine the amount and condi-
tion of the oil contained within the sump.
The oil fill connection and gauge port is a 1/4"
male flare connector incorporating a schrader
valve.
SH090-105-120-140-161-184: 1"3/4 rotolock con-
nector allowing use of 1”3/4 - 7/8" or 1”3/4 - 1”1/8
sleeve.
SH180-240-300-380: 2”1/4 rotolock connector
allowing the use of 2”1/4 - 1”3/8 or 2”1/4 - 1”5/8
sleeve.
This connection must be used to mount an oil
equalisation line when two or more compressors
are mounted in parallel (please refer to Performer®
SH Parallel Application Guidelines FRCC.EC.008.
for details).
The oil drain connection allows oil to be removed
from the sump for changing, testing, etc. The fit-
ting contains an extension tube into the oil sump
to more effectively remove the oil. The connec-
tion is a female 1/4" NPT fitting and is mounted on
SH180 - 240 - 300 - 380 models only.
Schrader
Oil equalisation connection
Connection details
12
Brazed version Rotolock version
Tube ODF Tube ODF
Brazed Rotolock cAdaptor d
SH090 Suction 1"1/8 - -
Discharge 7/8" - -
SH105 -120-140-161-184 Suction 1"3/8 - -
Discharge 7/8" - -
SH180-240-300-380 Suction 1’’ 5/8 2’’ 1/4 1’’ 5/8
Discharge 1’’ 1/8 1’’ 3/4 1’’ 1/8
SH 090 - 105 - 120 -
140 - 161 - 184 SH 180 - 240 - 300 - 380
Version AL AA - AB - AD - AF MA - MB - MD - MF
Suction and discharge connections Brazed Brazed Rotolock
Oil sight glass Threaded Threaded Threaded
Oil equalisation connection rotolock 1"3/4 rotolock 2"1/4 rotolock 2"1/4
Oil drain connection none 1/4’’ NPT 1/4’’ NPT
Low pressure gauge port (schrader) 1/4" flare 1/4’’ flare 1/4’’ flare

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 15
The terminal box is provided with 2 double knock-
outs for the power supply and 3 knockouts for the
safety control circuit.
The 2 power supply knockouts accommodate the
following diameters:
Ø 44 mm / Ø 1”3/4 (for a 1”1/4 conduit) & Ø 34 mm
/ Ø 1”3/8 (for a 1” conduit),
Ø 32.1 mm / Ø 1.26” & Ø 25.4 mm / Ø 1”.
The 3 other knockouts are as follows:
Ø 20.5 mm / Ø 0.81”
Ø 22 mm / Ø 7/8” (for a 1/2” conduit)
Ø 16.5 mm / Ø 0.65”
SH180
ELECTRICAL DATA, CONNECTIONS AND WIRING
Performer® SH scroll compressors are available in five different motor voltages as listed below.
Electrical power is connected to the compressor
terminals by Ø 4.8 mm (3/16”) screws. The maxi-
mum tightening torque is 3 Nm. Use a 1/4’’ ring
terminal on the power leads.
Motor voltage
Wiring connections
SH090-105-120 - 140 & 161
Except SH140-161 code 3
SH140&161 code 3 & SH184
The terminal box is provided with a Ø 25.5 mm
and a Ø 29 mm knockouts.
The terminal box is provided with a
Ø40.5 mm hole for power supply and a Ø16.5 mm
knockout.
Motor Protection
12
14
11
N
2
1
Module
L1
Cover holding screw (x2) - Torque: 2.2 Nm
Faston 1/4" tabs
Terminal box
Power supply
Sump heater
Protection module
power supply
Safety circuit
Terminal box
Ø 25.5 mm knockout
Power supply
Ø 29 mm knockout
Ø 40.5 mm hole
Ø 16.5 mm
knockout Power supply
Motor voltage code Code 3 Code 4 Code 6 Code 7 Code 9
50 Hz
Nominal voltage - 380-400V - 3 ph 230V - 3 ph 500V - 3 ph -
Voltage range - 340-440 V 207-253 V 450 - 550 V -
60 Hz Nominal voltage 200-230V - 3 ph 460V - 3 ph - 575 V-3 ph 380V- 3 ph
Voltage range 180-253 V 414-506 V - 517-632 V 342-418 V

APPLICATION GUIDELINES
16 FRCC.PC.007.B5.02
ELECTRICAL DATA, CONNECTIONS AND WIRING
The motor protection module comes preinstalled
within the terminal box and has pre-wired ther-
mistor connections. The module must be con-
nected to a power supply of the appropriate
voltage. The module terminals are 6.3 mm size
Faston type except for 24V DC module (screw
connection).
The terminal box is provided with 4 double knock-
outs and 4 single knockouts for power supply and
the safety control circuit.
The 4 power supply knockouts accommodate the
following diameters:
Ø 50 mm / 1”31/32
Ø 25.2 mm / 0.99”
Ø 43.7 mm / 1”23/32 & 34.5 mm / 1”23/64
Ø 40.5 mm / 1.59” & 32.2 mm / 1.27”
The 4 others knockouts are as follows:
Ø 20.5 mm / 0.81” (2x)
Ø 22 mm / 7/8” & 16.5 mm / 0.65” (2x)
SH240 - 300 - 380 -
Except SH380 code 3
The terminal box is provided with Ø 43.7 mm
(1"23/32) hole with possible Ø 50.8 mm (2") knock-
out for power supply and 2 x Ø 22.5 mm (7/8")
knockouts for safety control circuit.
SH380 code 3
The motor protection module comes preinstalled
within the terminal box. Phase sequence protec-
tion connections and thermistor connections are
pre-wired. The module must be connected to a
power supply of the appropriate voltage. The
module terminals are 6.3-mm size Faston type.
The motor protection module comes preinstalled
within the terminal box. Phase sequence protec-
tion connections and thermistor connections are
pre-wired. The module must be connected to a
power supply of the appropriate voltage. The
module terminals are 6.3-mm size Faston type.
}
Sump heater
Cover holding screws (x4)
T
orque: 2.2 N.m.
Power supply
M1, M2
Control circuit
Power supply
Black
Blue
Brown
LN1 2 1412 11
Internal control contact
Safety
circuit
Thermistor
connection
Module power
L N S1 S2 M1 M2
L1 L2 L3
Black Blue Brown
Phase sequence input
Internal control contact
Safety
circuit
Thermistor
connection
Module power
Power supply
Power supply
Black
Sump heater
Cover holding screws (x3)
Blue Brown
M1, M2
Control circuit
Terminal box
L N S1 S2 M1 M2
L1 L2 L3
Black Blue Brown
Phase sequence input
Internal control contact
Safety
circuit
Thermistor
connection
Module power

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 17
ELECTRICAL DATA, CONNECTIONS AND WIRING
The temperature inside the terminal box may not
exceed 70°C. Consequently, if the compressor is
installed in an enclosure, precautions must be
taken to avoid that the temperature around the
compressor and in the terminal box would rise
too much. The installation of ventilation on the
enclosure panels may be necessary. If not, the
electronic protection module may not operate
properly. Any compressor damage related to this
will not be covered by Danfoss warranty. In the
same manner, cables must be selected in a way
to insure that terminal box temperature does not
exceed 70°C.
Terminal box temperature
IP rating The compressor terminal box according to IEC529 is IP54 for all models when correctly sized IP54 rated
cable glands are used.
First numeral, level of protection against contact and foreign objects•
5- Dust protected
Second numeral, level of protection against water•
4- Protection against water splashing
Three phase electrical
characteristics Compressor model LRA MCC Max. operating
current Winding resistance
AAAΩ
Motor voltage code 3
200-230V / 3ph / 60 Hz
SH090 203 43 38 0.39
SH105 267 46 45 0.27
SH120 267 61 48 0.27
SH140 304 64 56 0.24
SH161 315 69 64 0.22
SH184 351 75 71 0.22
SH180 320 78 71 0.19
SH240 485 105 103 0.12
SH300 560 132 125 0.10
SH380 680 150 147 0.08
Motor voltage code 4
380-400 V / 3ph / 50 Hz
SH090 98 20 19 1.47
SH105 142 23 22 1.05
SH120 142 29 24 1.05
SH140 147 30 28 0.92
SH161 158 33 31 0.83
SH184 197 38.6 36 0.83
SH180 180 38 36 0.76
SH240 215 51 49 0.55
SH300 260 65 62 0.43
SH380 320 79 72 0.36
Motor voltage
code 6
230 V / 3ph /
50 Hz
SH090 157 40 32 0.5
SH105 223 43 38 0.35
SH120 223 51 41 0.35
SH140 236 53 49 0.31
SH161 236 57 53 0.31
SH184 236 57 56 0.31
Motor voltage code 7
500 V / 3ph / 50 Hz
575 V / 3 ph / 60 Hz
SH090 84 18 14 2.34
SH105 103 22 17 1.57
SH120 103 24 19 1.57
SH140 122 26 22 1.38
SH161 136 29 24 1.32
SH184 135 35 28 1.32
SH180 135 30 28 1.20
SH240 175 41 38 0.88
SH300 210 53 48 0.67
SH380 235 60 55 0.56
Motor voltage code 9
380 V / 3ph / 60 Hz
SH090 124 26 23 1.05
SH105 160 30 26 0.72
SH120 160 35 29 0.72
SH140 168 37 33 0.62
SH161 177 41 37 0.57
SH184 239 51 44 0.57
SH180 210 46 41 0.52
SH240 260 60 58 0.36
SH300 310 85 72 0.29
SH380 360 90 85 0.24

APPLICATION GUIDELINES
18 FRCC.PC.007.B5.02
ELECTRICAL DATA, CONNECTIONS AND WIRING
Winding resistance is the resistance between
phases at 25°C (resistance value +/- 7%).
Winding resistance is generally low and it requires
adapted tools for precise measurement. Use a dig-
ital ohm-meter, a "4 wires" method and measure
under stabilised ambient temperature. Winding
resistance varies strongly with winding tempera-
ture ; if the compressor is stabilised at a different
value than 25°C, the measured resistance must be
corrected with following formula:
a + tamb
Rtamb = R25°C _______
a + t25°C
t25°C : reference temperature = 25°C
tamb: temperature during measurement (°C)
R25°C: winding resistance at 25°C
Ramb: winding resistance at tamb
Coefficient a = 234.5
The max. operating current is the current when
the compressors operates at maximum load con-
ditions and 10% below nominal voltage (+15°C
evaporating temperature and +68°C condensing
temperature).
Max Oper. A can be used to select cables and
contactors.
In normal operation, the compressor current
consumption is always less than the Max Oper. A.
value.
The MCC is the current at which the motor pro-
tection trips under maximum load and low volt-
age conditions. This MCC value is the maximum
at which the compressor can be operated in tran-
sient conditions and out of the application enve-
lope. Above this value, the internal motor protec-
tion or external electronic module will cut-out the
compressor to protect the motor.
Locked Rotor Amp value is the higher average
current as measured on mechanically blocked
compressor tested under nominal voltage. The
LRA value can be used as rough estimation for the
starting current. However in most cases, the real
starting current will be lower. A soft starter can be
applied to reduce starting current.
Winding resistance
Max. operating Current
MCC (Maximum Continuous
Current)
LRA (Locked Rotor Amp)
The inrush current for the Performer® SH scroll
compressors with motor code 4 (400V /3ph /
50Hz or 460V / 3ph / 60Hz) can be reduced using
the Danfoss digitally-controlled MCI compressor
soft starter. MCI soft starters are designed to re-
duce the starting current of 3-phase AC motors;
they can reduce the inrush current by up to 40%,
thereby eliminating the detrimental effects of
high starting torque surges and costly demand
charges from the resultant current spike. Upon
starting, the controller gradually increases the
voltage supplied to the motor until full-line volt-
age has been reached. All settings, such as ramp-
up time (less than 0.5 sec) and initial torque, are
preset and do not require modification.
Danfoss MCI
soft-start controller
Compressor model Soft start reference
Ambient max. 40°C Soft start reference Ambient max. 55°C
SH090 MCI15C MCI15C
SH105 MCI25C MCI25C
SH120 MCI25C MCI25C
SH140 MCI25C MCI25C *
SH161 MCI25C MCI25C *
SH184 MCI25C MCI25C *
SH180 MCI50CM MCI50CM
SH240 MCI50CM MCI50CM *
SH300 MCI50CM * MCI50CM *
SH380 MCI50CM * MCI50CM *
* by pass contactor K1 is required

APPLICATION GUIDELINES
FRCC.PC.007.B5.02 19
Suggested wiring diagrams logic
Compressor model SH 090 - 105 - 120 - 140 - 161 - 184
ELECTRICAL DATA, CONNECTIONS AND WIRING
By means of the built-in auxiliary contact (23-24)
the by pass function is easily achieved, see wiring
diagram beside.
No heat is generated from the MCI. As the con-
tactor always switches in no-load condition it can
be selected on the basis of the thermal current
(AC-1).
13-14 contact not applicable with MCI 25C.
When the control voltage is applied to A1 - A2,
the MCI soft starter will start the motor, accord-
ing to the settings of the ramp-up time and ini-
tial torque adjustments. When the control volt-
age is switched OFF, the motor will switch off
instantaneously.
MCI with by pass contactor
Input controlled soft start
M
DGT
HP
LPS
180 s
TH
LP
CONTROL CIRCUIT
F1F1
KM
KM
KM
KA KA
A1
A2
A3
KA
KA
KS
KS
KS
L1 L3 L2
Q1
T1
T3
T2
LLSV KS
Wiring diagram with pump-down cycle
KM
L1 L3 L2
Q1
CONTROL CIRCUIT
F1F1
KM KA
KA KS
KS
KS
HP
DGT
TH
180 s
85 52 019 - A
T1 T2
M
T3
KA KA
A1
A2
A3
Wiring diagram without pump-down cycle
LPS
General wiring
information
The wiring diagrams below are examples for a
safe and reliable compressor wiring. In case an al-
ternative wiring logic is chosen, it is imperative to
respect the following rules:
When a safety switch trips, the compressor must
stop immediately and must not re-start until the
tripping condition is back to normal and the safe-
ty switch is closed again. This applies to the LP
safety switch, the HP safety switch, the discharge
gas thermostat and the motor safety thermostat.
In specific situations, such as winter start opera-
tion, an eventual LP control for pump-down cy-
cles may be temporarily bypassed to allow the
system to build pressure. But it remains manda-
tory for compressor protection to apply an LP
safety switch. The LP safety switch must never be
bypassed.
Pressure settings for the LP and HP safety switch
and pump-down listed in table from section "Low
pressure".
When ever possible (ie. PLC control), it is recom-
mended to limit the possibilities of compressor
auto restart to less than 3 to 5 times during a peri-
od of 12 hours when caused by motor protection
or LP safety switch tripping. This control must be
managed as a manual reset device.

APPLICATION GUIDELINES
20 FRCC.PC.007.B5.02
ELECTRICAL DATA, CONNECTIONS AND WIRING
Compressor models SH 180
Compressor model SH240-300-380
Fuses ..................................................................................................F1
Compressor contactor................................................................. KM
Control relay ................................................................................... KA
Safety lock out relay.......................................................................KS
Optional short cycle timer (3 min) ........................................180 s
External overload protection.......................................................F2
Pump-down pressure switch .......................................................LP
High pressure safety switch.........................................................HP
Control device.................................................................................TH
Liquid Line Solenoid valve....................................................... LLSV
Discharge gas thermostat........................................................ DGT
Fused disconnect ...........................................................................Q1
Motor safety thermostat............................................................thM
Compressor motor ..........................................................................M
Motor Protection Module ........................................................MPM
Thermistor chain...............................................................................S
Safety pressure switch.................................................................LPS
Legend
A1
A3
A2
LPS
MPM
12 14
11 N
2 1
L1
Wiring diagram without pump-down cycle
A1
A3
A2
LPS
Motor Protection
12 14
11 N
2 1
Module
L1
Wiring diagram with pump-down cycle
A1
A3
A2
MPM
S
LPS
Wiring diagram with pump-down cycle
LP
A1
A3
A2
MPM
S
KS
Wiring diagram without pump-down cycle
LPS