Danfoss Performer SM Series Instruction Manual

SELECTION & APPLICATION
GUIDELINES
Performer® scroll compressors
SM - SY - SZ - 50 / 60 Hz
R-22 - R-407C - R-134a - R-404A - R-507A
MAKING MODERN LIVING POSSIBLE
REFRIGERATION &
AIR CONDITIONING

PERFORMER® SCROLL COMPRESSION PRINCIPLE ..................................................................................................... 4
COMPRESSOR MODEL DESIGNATION ...................................................................................................................................................... 5
Nomenclature ......................................................................................................................................................................................................................................................... 5
Connection details ....................................................................................................................................................................................................................................... 5
TECHNICAL SPECIFICATIONS ........................................................................................................................................................................................ 6
50-Hz data ....................................................................................................................................................................................................................................................................... 6
60-Hz data ....................................................................................................................................................................................................................................................................... 7
OPERATING ENVELOPES ........................................................................................................................................................................................................... 8
Application envelopes at dew temperatures .................................................................................................................................... 8
Application envelopes at mean temperatures .............................................................................................................................. 10
PIPING CONNECTIONS ................................................................................................................................................................................................................... 11
Suction and discharge connections ....................................................................................................................................................................... 11
Sight glass ........................................................................................................................................................................................................................................................................ 11
Schrader valve ........................................................................................................................................................................................................................................................ 11
Oil drain ................................................................................................................................................................................................................................................................................. 11
ELECTRICAL CONNECTIONS AND WIRING .................................................................................................................................... 12
Motor voltage .......................................................................................................................................................................................................................................................... 12
Electrical connections ........................................................................................................................................................................................................................... 12
Suggested wiring diagrams logic ................................................................................................................................................................................ 14
Danfoss MCI soft-start controller .................................................................................................................................................................................. 15
SYSTEM DESIGN RECOMMENDATIONS ................................................................................................................................................ 17
Refrigerant charge limit and compressor protection ...................................................................................................... 17
Crankcase heater ................................................................................................................................................................................................................................. 17
Liquid line solenoid valve (LLSV) ....................................................................................................................................................................... 17
Pump-down cycle ............................................................................................................................................................................................................................ 17
Suction accumulator ................................................................................................................................................................................................................... 17
Liquid receiver .......................................................................................................................................................................................................................................... 18
Protection against flooded starts and liquid floodback .............................................................................. 18
Discharge gas temperature protection (DGT) .................................................................................................................... 18
Refrigerant charge limits and compressor protection ..................................................................................... 19
Motor protection ............................................................................................................................................................................................................................................. 20
Internal motor protection .............................................................................................................................................................................................. 20
External motor protection ............................................................................................................................................................................................ 20
Phase sequence and reverse rotation protection ...................................................................................................... 21
Cycle rate limit ........................................................................................................................................................................................................................................... 21
Voltage unbalance .......................................................................................................................................................................................................................... 22
High and low pressure protection ............................................................................................................................................................................ 22
High pressure ............................................................................................................................................................................................................................................. 22
Low pressure ............................................................................................................................................................................................................................................... 22
Internal pressure relief valve ...................................................................................................................................................................................... 23
Essential piping design considerations .......................................................................................................................................................... 23
CONTENTS

SPECIFIC APPLICATION RECOMMENDATIONS ................................................................................................................... 24
Low ambient compressor operations ............................................................................................................................................................... 24
Low ambient operation and minimum pressure differential .......................................................... 24
Low ambient start-up .............................................................................................................................................................................................................. 24
Head pressure control under low ambient conditions .................................................................................. 24
Crankcase heaters ............................................................................................................................................................................................................................ 24
Low load operations ................................................................................................................................................................................................................................ 25
Brazed plate heat exchangers ............................................................................................................................................................................................ 25
Reversible heat pump systems ......................................................................................................................................................................................... 25
Crankcase heaters ............................................................................................................................................................................................................................ 26
Discharge temperature thermostat ......................................................................................................................................................... 26
Discharge line & reversing valve ...................................................................................................................................................................... 26
Suction line accumulator ................................................................................................................................................................................................. 26
SOUND AND VIBRATION MANAGEMENT ........................................................................................................................................ 27
Sound generation in a refrigeration / air conditioning system ................................................................ 27
Compressor sound radiation ................................................................................................................................................................................... 27
Mechanical vibrations ............................................................................................................................................................................................................. 27
Gas pulsation .............................................................................................................................................................................................................................................. 27
INSTALLATION ................................................................................................................................................................................................................................................... 28
Compressor handling ............................................................................................................................................................................................................................ 28
Mounting .......................................................................................................................................................................................................................................................................... 28
Removing connections shipping plugs ........................................................................................................................................................ 29
System cleanliness ........................................................................................................................................................................................................................................ 29
Tubing ...................................................................................................................................................................................................................................................................................... 29
Filters driers ................................................................................................................................................................................................................................................................. 30
Brazing and soldering .......................................................................................................................................................................................................................... 30
Copper to copper connections .......................................................................................................................................................................... 30
Dissimilar metals connection ................................................................................................................................................................................. 30
Compressor connection .................................................................................................................................................................................................... 30
System pressure test ................................................................................................................................................................................................................................. 31
Leak detection ....................................................................................................................................................................................................................................................... 31
Vacuum pump-down and moisture removal ................................................................................................................................... 32
Refrigerant charging ............................................................................................................................................................................................................................... 32
Commissioning .................................................................................................................................................................................................................................................... 32
Oil level checking and top-up ............................................................................................................................................................................................ 32
Oil level check ........................................................................................................................................................................................................................................... 32
Oil top-up ........................................................................................................................................................................................................................................................... 32
ACCESSORIES ....................................................................................................................................................................................................................................................... 33
Connectors and valves ....................................................................................................................................................................................................................... 33
Lubricants ........................................................................................................................................................................................................................................................................ 33
Crankcase heaters ......................................................................................................................................................................................................................................... 34
Discharge temperature protection ......................................................................................................................................................................... 35
Compressor acoustic hood ....................................................................................................................................................................................................... 35
ORDERING INFORMATION AND PACKAGING ....................................................................................................................... 36
Ordering information ............................................................................................................................................................................................................................ 36
Packaging ........................................................................................................................................................................................................................................................................ 38
CONTENTS

First orbit:
SUCTION
Second orbit:
COMPRESSION
Third orbit:
DISCHARGE
4
PERFORMER® SCROLL COMPRESSION PRINCIPLE
In a Danfoss Performer® scroll
compressor, compression is performed
by two scroll elements located above
the motor (see adjacent figure). Suction
gas enters the compressor at the suction
connection, enters at the bottom of the
motor housing and flows around the
motor. Oil droplets separate from the
suction gas and fall into the oil sump. All
suction gas passes around the electric
motor, ensuring complete motor
cooling in all applications. After cooling
the electric motor, the gas enters the
scroll elements where compression
takes place.
A check valve is located directly above
the fixed scroll discharge port; this
feature prevents the compressor from
running backwards once the power has
been switched off.
The figure below illustrates the entire
compression process.
Therearetwoscrollelements:anorbiting
scroll and a fixed scroll. The center of
the orbiting scroll traces a circular path
around the center of the fixed scroll.
This movement creates symmetrical
compression pockets between the two
scroll elements. Low pressure gas is
trapped in 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 toward the center of
the scroll .
During three complete orbits the pocket
of gas becomes smaller and pressure
rises. After the third orbit, the gas, at
maximum pressure, has reached the
central discharge port where it leaves
the compressor.
Compression in a scroll is a continuous
process: when one pocket of gas is being
compressed during its second orbit,
another quantity is entering the scrolls
and yet another is being discharged all
at the same time.

Family, lubricant &
refrigerant
SM: Scroll, mineral oil, for R-22
SY: Scroll, POE lubricant, for R-22
SZ: Scroll, POE lubricant, for R-407C - R-134a
Family,
lubricant
& refrigerant
Nominal
capacity Voltage Version Evolution
Index
Version
A9S Y A A A3 0 0
C4S Z S R1 8 5
Nominal capacity
in thousand Btu/h at 60 Hz,
R-22, ARI conditions
UL index
Voltage
Motor voltage code:
3: 200-230/3/60
4: 380-400/3/50 - 460/3/60
6: 230/3/50
7: 500/3/50 - 575/3/60
9: 380/3/60
Internal
overload
protector
VV: brazed S 084 - 090
100 - 110 - 120
148 - 161
Internal
thermostat
C C: brazed
S 115 - 125
160 - 175 - 185
R R: rotolock
Electronic
protection
module
AA
AB
MA
MB
A: brazed A: 24V
A: brazed B: 115/230V
M: rotolock A: 24V
M: rotolock B: 115/230V
S 240* - 300*
- 380*
Motor
protection
type

Applies to

Description

*For trio assemblies, please contact Danfoss
5
Model SM/SZ 084 - 090 - 100
110 - 120 - 148 - 161
SM/SZ 115 - 125 - 160 -
175 - 185 SY/SZ 240 - 300 SY/SZ 380
Version V R C MA
MB
AA
AB
AA
AB
Suction and discharge
connection brazed rotolock brazed rotolock brazed brazed
Oil sight glass threaded threaded threaded threaded threaded threaded
Oil equalization connection 3/8’’ flare 3/8’’ flare 3/8’’ flare 1/2’’ flare 1/2’’ flare 1/2’’ flare
Oil drain connection - 1/4’’ NPT 1/4’’ NPT 1/4’’ NPT 1/4’’ NPT 1/4’’ NPT
Low pressure gauge port
(schrader) 1/4’’ flare 1/4’’ flare 1/4’’ flare 1/4’’ flare 1/4’’ flare 1/4’’ flare
COMPRESSOR MODEL DESIGNATION
Performer® scroll compressors are
available both as single compressors
and as tandem units. The example
below presents single compressor
nomenclature.
For tandem assemblies, please refer
to the Performer® Parallel Application
Guidelines documentation.
Nomenclature
Connection details

6
Model
Nominal
Cap. 60 Hz
TR
Nominal cooling
capacity**
W Btu/h
Power
input
kW
A max
(code 4)
A
Eciency Sound
power
dB(A)
Swept
volume
cu.in/rev
Displace-
ment
cu.ft/h
Oil
charge
oz
Net
weight
lb*
COP
W/W
E.E.R.
Btu/h /W
R-22 SINGLE
SM084 7 20400 69 600 6.12 17 3.33 11.4 70 6.99 703 111.6 159
SM090 7.5 21800 74 400 6.54 17 3.33 11.4 70 7.35 741 111.6 159
SM100 8 23100 79 000 6.96 19 3.33 11.3 70 7.76 782 111.6 159
SM110 9 25900 88 600 7.82 20 3.32 11.3 75 8.80 886 111.6 176
SM115 9.5 28000 95 600 8.31 25 3.37 11.5 76 9.46 952 128.5 176
SM120 10 30100 102 800 8.96 29 3.36 11.5 75 10.17 1024 111.6 176
SM125 10 30100 102 800 8.93 25 3.37 11.5 76 10.17 1024 128.5 176
SM148 12 36100 123 100 10.80 32 3.34 11.4 79 12.14 1222 121.7 176
SM160 13 39100 133 500 11.60 29 3.37 11.5 79.5 13.22 1331 135.3 207
SM161 13 39000 133 200 11.59 32 3.37 11.5 79.5 13.22 1331 121.7 190
SM175 14 42000 143 400 12.46 35 3.37 11.5 80 14.22 1432 209.6 227
SM185 15 45500 155 300 13.62 35 3.34 11.4 80 15.25 1535 209.6 227
SY240 20 61200 208 700 18.20 50 3.36 11.5 82 21.22 2137 270.5 353
SY300 25 78200 267 000 22.83 69 3.43 11.7 82 26.70 2687 270.5 353
SY380 30 92000 313 900 26.82 79 3.43 11.7 85 32.42 3263 284.0 359
TECHNICAL SPECIFICATIONS
50 Hz data
Subject to modification without prior notification
For full data details and capacity tables refer to Online Datasheet Generator : www.danfoss.com/odsg
SM/SY compressors SZ compressors
Refrigerant R-22 R-407C
Frequency 50 Hz 50 Hz
Standard rating conditions ARI standard conditions -
Evaporating temperature 45 °F 45 °F (dew point)
Condensing temperature 130 °F 130 °F (dew point)
Subcooling 15 °F 15 °F
Superheat 20 °F 20 °F
Rating conditions
TR = Ton of Refrigeration
COP = Coefficient Of Performance
EER = Energy Efficiency Ratio
R-407C SINGLE
SZ084 7 19300 66 000 6.13 17 3.15 10.7 71 6.99 703 111.6 159
SZ090 7.5 20400 69 600 6.45 17 3.16 10.8 72 7.35 741 111.6 159
SZ100 8 21600 73 700 6.84 19 3.15 10.8 73 7.76 782 111.6 159
SZ110 9 24600 84 000 7.76 20 3.17 10.8 77 8.80 886 111.6 176
SZ115 9.5 26900 91 700 8.49 25 3.16 10.8 77 9.46 952 128.5 176
SZ120 10 28600 97 600 8.98 29 3.18 10.9 77 10.17 1024 111.6 176
SZ125 10 28600 97 500 8.95 25 3.19 10.9 78 10.17 1024 128.5 176
SZ148 12 35100 119 800 10.99 32 3.19 10.9 79 12.14 1222 121.7 176
SZ160 13 37600 128 200 11.58 29 3.24 11.1 80.5 13.22 1331 135.3 207
SZ161 13 37900 129 500 11.83 32 3.21 10.9 79 13.22 1331 121.7 190
SZ175 14 40100 136 900 12.67 35 3.17 10.8 81 14.22 1432 209.6 227
SZ185 15 43100 147 100 13.62 35 3.16 10.8 81 15.25 1535 209.6 227
SZ240 20 59100 201 800 18.60 50 3.18 10.9 83.5 21.22 2137 270.5 353
SZ300 25 72800 248 300 22.70 69 3.20 10.9 84 26.70 2687 270.5 353
SZ380 30 89600 305 900 27.60 79 3.25 11.1 86.5 32.42 3263 284.0 359
* with oil charge & accessories
** at nominal speed
2900 rpm at 50 Hz
3500 rpm at 60Hz

7
Model
Nominal
Cap. 60 Hz
TR
Nominal cooling
capacity**
W Btu/h
Power
input
kW
A max
(code 4)
A
Eciency Sound
power
dB(A)
Swept
volume
cu.in/rev
Displace-
ment
cu.ft/h
Oil
charge
oz
Net
weight *
lb
COP
W/W
E.E.R.
Btu/h /W
R-22 SINGLE
SM084 7 24600 84 000 7.38 17 3.34 11.4 74 6.99 703 111.6 141
SM090 7.5 26400 90 000 7.82 17 3.37 11.5 75 7.35 741 111.6 143
SM100 8 27500 94 000 8.14 19 3.38 11.5 75 7.76 782 111.6 143
SM110 9 31600 107 800 9.35 20 3.38 11.5 78 8.80 886 111.6 161
SM115 9.5 33700 115 200 10.08 25 3.35 11.4 79 9.46 952 128.5 172
SM120 10 36700 125 300 10.80 29 3.40 11.6 78 10.17 1024 111.6 161
SM125 10 37000 126 400 10.99 25 3.37 11.5 79 10.17 1024 128.5 172
SM148 12 43800 149 500 13.01 32 3.37 11.5 83 12.14 1222 121.7 194
SM160 13 47700 163 000 14.22 29 3.36 11.5 84 13.22 1331 135.3 198
SM161 13 47600 162 600 14.07 32 3.39 11.5 84 13.22 1331 121.7 194
SM175 14 51100 174 300 15.27 35 3.34 11.4 82.5 14.22 1432 209.6 220
SM185 15 54300 185 400 16.22 35 3.35 11.4 82.5 15.25 1535 209.6 220
SY240 20 74100 252 700 22.10 50 3.35 11.4 84.7 21.22 2137 270.5 331
SY300 25 94500 322 500 27.50 69 3.43 11.7 85.9 26.70 2687 270.5 346
TECHNICAL SPECIFICATIONS
60 Hz data
Subject to modification without prior notification
For full data details and capacity tables refer to Online Datasheet Generator : www.danfoss.com/odsg
SM/SY compressors SZ compressors
Refrigerant R-22 R-407C
Frequency 60 Hz 60 Hz
Standard rating conditions ARI standard conditions -
Evaporating temperature 45 °F 45 °F (dew point)
Condensing temperature 130 °F 130 °F (dew point)
Subcooling 15 °F 15 °F
Superheat 20 °F 20 °F
TR = Ton of Refrigeration
COP = Coefficient Of Performance
EER = Energy Efficiency Ratio
Rating conditions
R-407C SINGLE
SZ084 7 22500 76 900 7.06 17 3.19 10.9 74 6.99 703 111.6 141
SZ090 7.5 24400 83 300 7.63 17 3.20 10.9 77 7.35 741 111.6 143
SZ100 8 26500 90 500 8.18 19 3.24 11.0 77 7.76 782 111.6 143
SZ110 9 30100 102 800 9.29 20 3.24 11.1 81 8.80 886 111.6 161
SZ115 9.5 32800 112 000 10.22 25 3.21 10.9 81 9.46 952 128.5 172
SZ120 10 34800 118 900 10.75 29 3.24 11.1 81 10.17 1024 111.6 161
SZ125 10 34900 119 200 10.89 25 3.21 10.9 81 10.17 1024 128.5 172
SZ148 12 42600 145 400 13.35 32 3.19 10.9 83 12.14 1222 121.7 194
SZ160 13 45500 155 400 14.08 29 3.23 11.0 83 13.22 1331 135.3 198
SZ161 13 46000 156 900 14.32 32 3.21 10.9 83 13.22 1331 121.7 194
SZ175 14 48700 166 200 15.28 35 3.19 10.9 84 14.22 1432 209.6 220
SZ185 15 51800 176 800 16.43 35 3.15 10.7 84 15.25 1535 209.6 220
SZ240 20 71100 242 800 22.70 50 3.14 10.7 87 21.22 2137 270.5 331
SZ300 25 87900 300 000 27.49 69 3.20 10.9 87.5 26.70 2687 270.5 346
SZ380 30 108500 368 500 33.40 79 3.25 11.0 89.5 32.42 3263 284 348
* with oil charge & accessories
** at nominal speed
2900 rpm at 50 Hz
3500 rpm at 60Hz

80
90
100
110
120
130
140
150
160
-10 0 10 20 30 40 50 60
Evaporating temperature [°F]
Condensing temperature [°F]
Condensing temp. limits
S.H. = 20oF
S.H. = 54oF
SUPERHEAT
8
OPERATING ENVELOPES
The figures below show the operat-
ing envelopes for SM / SY compres-
sors with refrigerant R-22 and for SZ
compressors with refrigerants R-407C,
R-134a, R-404A and R-507A. Operat-
ing limits define the envelope within
which reliable compressor operation
is guaranteed.
Because discharge temperature de-
pends on the combination of evapo-
rating temperature, condensing tem-
perature and suction gas superheat,
discharge temperature limits are
indicated by a double line. The solid
line represents the limit when the su-
perheat is 20oF or less. The dotted line
shows the limit when the superheat is
54oF. Interpolate for superheat values
between 20oF and 54oF.
•Maximum discharge gas tem-
perature: +275oF
• Maximum ambient temperature:
+145oF (for SM / SZ 084 to 185),
+125oF (for SY / SZ 240 to 380)
• A suction superheat below 10oF is not
recommended due to risk of liquid
floodback
• Maximum superheat: 54oF
• Minimum and maximum evapo-
rating and condensing temperatures
as per the operating envelopes.
SM 084 to SM 185
SY 240 to SY 380
R-22
SZ 084 to SZ 185
R-134a
Application envelopes
at dew temperatures
80
90
100
110
120
130
140
150
160
-10 0 10 20 30 40 50 60
Evaporating temperature [°F]
Condensing temperature [°F]
Condensing temp. limits
S.H. = 20oF
S.H. = 54oF
SUPERHEAT

Condensing temp. limits
S.H. = 20oF
80
90
100
110
120
130
140
150
160
0 10 20 30 40 50 60
Evaporating temperature [°F]
Condensing temperature [°F]
S.H. = 54oF
SUPERHEAT
80
90
100
110
120
130
140
150
160
-10 0 10 20 30 40 50 60
Evaporating tem perature [°F]
Condensing temperature [°F]
Condensing temp. limits
S.H. = 20oF
S.H. = 54oF
SUPERHEAT
80
90
100
110
120
130
140
150
160
-10 0 10 20 30 40 50 60
Evaporating temperature [°F]
Condensing temperature [°F]
Condensing temp. limits
S.H. = 20
o
F
S.H. = 54
o
F
SUPERHEAT
-10 0 10 20 30 40 50 60
Evaporating temperature [°F]
Condensing temperature [°F]
Condensing temp. limits
S.H. = 20oF
S.H. = 54oF
SUPERHEAT
80
90
100
110
120
130
140
150
160
9
SZ 240 - 300
R-134a
SZ 240 to SZ 380
R-407C
at DEW temperature
(refer to the explanation p.10)
SZ 084 to SZ 185
R-407C
at DEW temperature
(refer to the explanation p.10)
SZ 084 to SZ 185
R-404A / R-507A
OPERATING ENVELOPES

pressure (log)
enthalpy
Dew
Dew
Mean
Mean
Condensing temp. limits
80
90
100
110
120
130
140
150
160
-10 0 10 20 30 40 50 60
Evaporating temperature [°F]
Condensing temperature [°F]
S.H. = 20oF
S.H. = 54oF
SUPERHEAT
Condensing temp. limits
S.H. = 20oF
S.H. = 54oF
SUPERHEAT
80
90
100
110
120
130
140
150
160
-10 0 10 20 30 40 50 60
Evaporating temperature [°F]
Condensing temperature [°F]
10
Application envelopes at
mean temperatures
Dew temperature and
mean temperature for
R-407C
OPERATING ENVELOPES
The following operating diagrams
show the difference between mean
and dew temperature application
envelopes.
Dew temperature
Mean temperature
Example for SZ 084 to 185
Example for SZ 084 to 185
Refrigerant R-407C is a zeotropic mix-
ture with a temperature glide in both
evaporator and condenser. Therefore,
when discussing evaporating and
condensing temperatures, it is im-
portant to indicate whether these are
DEW POINT values or MEAN values.
In the figure below, the dashed lines
reflect constant temperature and do
not correspond with the constant
pressure lines. For a given cycle, the
MEAN point temperatures are typi-
cally about 3.5° to 5.5°F lower than
DEW point temperatures. In these
Selection and Application Guidelines,
we displays temperatures as DEW
point values.
The performance tables for R-407C
(see p. 6-7) are also based on DEW
point values.