Scroll comprESSorS

r410a // hermetic
Scroll compressors
orbit Series: Variable Speed Drive
VSD Operation
60 Hz // ESP-133-2
ORBIT for variable speed drive (VSD)
While the scroll compressors of the ORBIT series are
characterized by high full load and seasonal efficiency,
low sound levels, and high reliability, they are also now
suitable for use with variable speed drives. VSD capable
scroll compressors from BITZER give system designers
more solutions to the challenge of maintaining full load
and rating point efficiency levels, while also increasing
efficiency at part load conditions where equipment
operates during most of the year. Using the overspeed
potential of the GSD gives the option of downsizing the
nominal compressor displacement to cover partly the VSD
costs. The wide speed range allows for capacity reduction
together with low condensing pressure operation, e. g.
in comfort air-conditioning applications, for high system
efficiencies. Coupled with BITZER’s unique lower con­
densing temperature optimization, system designers have
never had so many options to satisfy their customers’
needs.
M
3~
I
T1
T3
T5
U
V
W
U ZK
T4
T6
T2
Wide speed/capacity range
50
55
45
60
65
40
70
35
75
80
30
Hz
The ORBIT with VSD capability provides smooth and efficient
operation from 35 to 75 Hz*. While many designers use
tandem and trio compounds to achieve simple and efficient
capacity staging in chiller applications, the VSD capability of
the ORBIT provides new options for refrigerant-to-air systems
which need fast and instant capacity adap­tation. The quick
response of the ORBIT with VSD allows accurate temperature
control.
Design flexibility with reduced inventory costs
Since standard ORBIT compressors are VSD capable,
system designers have many options. Even tandems, uneven
tandems, and even fixed + variable speed tandems, for
example. And, when used with BITZER Advanced Header
Technology, it is possible in many cases to offer different
efficiency versions of the system with common piping and
construction, which greatly reduces factory complexity and
inventory carrying costs. Such technical solutions provide
benefits for sales, technology, manufacturing and financial
functions.
* GSD6, GSD80421 & GSD80485: 45 to 65 Hz
2
ESP-133-2
Capacity (Tons according to ARI 540)
50
High cooling capacity
The large capacity range of the ORBIT
series is enhanced with the ability to either
slow down, or speed up depending on
demand. This in­creased range can allow
users the option to reduce the number,
size and variety of compressors used in
the system design.
40
ORBIT 8 Nominal Speed
G
SD
80
42
G
SD
80
G
SD
80
G
SD
80
23
G
SD
80
G
SD
80
18
2V
40
5V
10
29
5V
38
5V
1V
20
48
5V
30
ORBIT 8 Variable Speed
Heat Pump Capacity & Heat Load: Fixed vs. Variable Speed
Heat pump application
Heat Pump Capacity [Btu/h]
The ORBIT with VSD capability is an ideal
solution for designers looking for high
system performance. While a standard
scroll compressor must cycle on /off
to achieve temperature control in the
building, a scroll with VSD can easily
follow the characteristics. In addition,
BITZER provides a large application
envelope precisely in the area most
needed by heat pump applications. Offsetting low refrigerant mass flow rates
associated with these conditions is now
possible with BITZER’s ORBIT with VSD
capability.
Supplemental
Heat required
Bivalent
Point
Ambient Temperature [°F]
Required building heat Load
Standard Scroll Compressor at fixed speed
ORBIT 8 Variable Speed (smaller size compressor)
Bivalent Point:Heating capacity of smaller size compressor at 75 Hz equal to
standard scroll at fixed speed (50 Hz)
IPLV for Refrigerant-to-Air Systems
IPLV advantage
Variable Speed
BITZER ORBIT
20
15
ESP-133-2
Seasonal
+15% Energy
Efficiency
Btu/(W x h)
25
While ORBIT operation is known for its
optimization towards IPLV, these benefits
are further enhances with the application of
VSD technology increasing the IPLV even up
to 15%. Designers can take advantage of the
lower condensing pressures associated with
part-load operation and further reduce their
power consumption. This is in particular of
advantage with refrigerant-to-air systems but
also for chillers with two or more compressors
in multi-circuits (one with VSD) for stepless
modulation of the required cooling demand.
3
Application Limits
BITZER ORBIT with VSD
35 Hz*
Application after consultation with BITZER
* GSD80182 .. GSD80385 only
BITZER ORBIT 8 Boreal with VSD
160
SDT [°F]
140
35 Hz
120
100
80
SH = 20°F
60
-20
SST Saturated suction tempeature (°F)
4
0
20
SH Suction superheat (°F)
40 SST [°F] 60
SDT Saturated discharge temperature (°F)
ESP-133-2
ORBIT 6 Performance data
Performance data are based on ARI 540 boundary conditions.
Saturated suction and discharge temperatures correspond to “dew point” conditions (saturated vapor).
Performance data based on 20°F suction superheat and 15°F subcooling ➀.
Cooling capacity
Compressor type
SST (°F)
Qo
Power consumption
[kBTU]
Ü
GSD60137VA
GSD60154VA
GSD60182VA
[kW]
➁
Energy Efficiency Ratio EER
45
45
45
SDT (°F)
130
Frequency (Hz) 45
65
100
45
60
65
164233
60
65
120
45
R410A ➂
GSD60120VA
Pe
60
ORBIT 6
Q
92610
124000
134333
99810
133500
144625
112680
151600
P
8,15
10,85
11,76
7,27
9,71
10,52
5,84
7,81
8,46
EER
11,36
11,43
11,43
13,73
13,74
13,74
19,30
19,40
19,40
Q
103860
138000
149500
111870
150000
162500
126540
169700
183842
P
9,13
12,12
13,13
8,16
10,87
11,78
6,58
8,78
9,51
EER
11,37
11,39
11,39
13,72
13,79
13,79
19,22
19,33
19,33
Q
116550
154800
167700
125550
166200
180050
142020
188000
203667
P
10,20
13,52
14,65
9,11
12,10
13,11
7,36
9,81
10,63
EER
11,43
11,45
11,45
13,78
13,73
13,73
19,30
19,16
19,16
Q
137790
183700
199008
147870
197800
214283
167130
223300
241908
P
11,97
15,95
17,28
10,72
14,39
15,58
8,65
11,78
12,76
EER
11,51
11,51
11,51
13,80
13,75
13,75
19,32
18,96
18,96
Qo
GSD60235VA
P
upon request
COP
Tentative data
➀ Running-in period 72 hours.
➁ Power consumption at motor terminals; power consumption at inverter intake depends on
the individually applied inverter model.
ESP-133-2
5
ORBIT 8 Performance data
Performance data are based on ARI 540 conditions.
Saturated suction and discharge temperatures correspond to “dew point” conditions (saturated vapor).
Performance data based on 20°F suction superheat and 15°F subcooling ➀.
Cooling capacity
Compressor type
SST (°F)
GSD80295VA
GSD80385VA
GSD80421VA
GSD80485VA
Pe
[kW]
➁
Energy Efficiency Ratio EER
45
45
45
45
45
45
45
45
45
130
60
130
75 (65)
120
35
120
60
120
75 (65)
100
35
100
60
100
75 (65)
Q
86
181
213
96
194
230
115
220
263
P
9.4
16.7
20.0
8.0
14.9
17.8
5.8
11.9
14.2
EER
9.1
10.8
10.6
12.0
13.1
12.9
19.8
18.4
18.4
Q
118
238
285
132
257
307
157
293
350
P
13.4
22.9
27.2
11.4
20.1
24.2
8.3
15.6
19.4
EER
8.8
10.4
10.5
11.5
12.8
12.7
19.0
18.8
18.1
Q
152
297
362
170
322
392
203
368
448
P
17.5
28.2
34.9
14.9
24.8
30.9
10.8
19.3
24.5
EER
8.7
10.5
10.4
11.5
13.0
12.7
18.8
19.1
18.3
Q
204
386
474
225
417
510
262
474
578
P
21.4
35.5
43.9
18.3
31.4
39.3
13.6
24.9
31.8
EER
9.5
10.9
10.8
12.3
13.3
13.0
19.2
19.0
18.2
Q
221
419
446
245
453
481
288
517
549
P
23.5
38.9
20.0
34.4
27.1
9.4
10.8
12.3
13.2
36.3 ➂
13.3
14.9
EER
40.8 ➂
10.9
19.4
19.1
28.9 ➂
19.0
Q
251
473
504
282
513
545
331
586
622
P
27.2
44.2
23.0
39.0
30.8
9.2
10.7
12.3
13.1
41.5 ➂
13.1
16.9
EER
46.8 ➂
10.8
19.7
19.0
33.1 ➂
18.8
Ü
GSD80235VA
Power consumption
[kBTU]
SDT (°F)
130
Frequency (Hz) 35
R410A ➂
GSD80182VA
Qo
ORBIT 8 optimized for air-cooled systems and reversible chillers
ORBIT 8 Boreal optimized for systems with low condensing temperature
SST (°F)
GSD80235VW
GSD80295VW
GSD80385VW
GSD80421VW
GSD80485VW
Ü
Compressor type
45
45
45
45
45
45
SDT (°F)
115
Frequency (Hz) 35
115
60
115
75 (65)
80
35
80
60
80
75 (65)
Q
144
275
318
186
339
395
P
11.0
19.1
23.2
5.8
11.6
14.4
EER
13.0
14.4
13.7
31.9
29.2
27.3
Q
181
332
400
233
410
495
P
13.7
23.2
29.1
7.3
13.8
18.1
EER
13.1
14.3
13.8
32.1
29.7
27.4
Q
227
482
516
295
594
635
P
17.6
34.8
37.9
9.5
21.8
24.1
EER
12.9
13.8
13.6
31.0
27.3
26.4
Q
249
467
494
328
580
615
P
19.0
32.7
10.3
20.1
EER
13.1
14.3
34.7 ➂
14.2
31.7
28.8
21.5 ➂
28.5
Q
286
534
562
380
668
706
P
21.3
37.3
11.6
23.0
EER
13.4
14.3
39.4 ➂
14.3
32.7
29.0
24.6 ➂
28.7
Tentative data
➀ Running-in period 72 hours.
➁ Power consumption at motor terminals; power consumption at inverter intake depends on
the individually applied inverter model.
➂ Performance data at 65 Hz.
6
ESP-133-2
ORBIT 6 Technical data
➀
Oil
charge
fl.oz
10.6 .. 15.3
45 .. 65 Hz
91
Pipe connections ODS
DL
Discharge line
SL
Suction line
lbs
inch
inch
195
7/8
1
1 3/8
➁
CFM
GSD60120VA
Weight
Electrical data compressor
Rated load
Starting
Motor
amps
current
connection
(RLA)
LRA
(Amp.)
➂
Amp. ➃
3/8
GSD60137VA
11.9 .. 17.1
45 .. 65 Hz
91
195
7/8
GSD60154VA
13.2 .. 19.1
45 .. 65 Hz
91
195
7/8
1 3/8
GSD60182VA
15.6 .. 22.5
45 .. 65 Hz
91
195
7/8
1 3/8
GSD60235VA
26.7
60 Hz
91
195
7/8
1 3/8
Amp. ➄
See BITZER Software
Speed range
See BITZER Software
Displacement
with
45 .. 65 Hz
Contact BITZER
Compressor
type
➀ Preliminary data. Speed range at time of publication. These data are subject to change as a result of BITZER’s policy of continuous improvement.
Contact your local BITZER representative for application assistance.
➁ Charged with polyvinyl ether BVC32.
➂ Motor selection for FI operation depends on application considerations. For full envelope and over-speed capability, selection of the 208/230 V
motor is generally required. Less demanding applications focused on IPLV consideration may be handled by either standard motor, or 380 V
motors. Contact BITZER for assistance in proper selection.
➃ For the selection of contactors, cables and fuses the rated load amps (RLA) and the max. power consumption must be considered
(“Electrical data”). RLA (MCC/1.56).
➄ Data for direct start. With VSD stepless rise of current up to actual load amps – maximum up to rated load amps (RLA).
Oil heater (option) 90 W/115 V, 230 V, 460 V, 575 V.
For dimensional drawings see brochure ESP-125.
ESP-133-2
7
ORBIT 8 Technical data
Compressor
type
Displacement with
35 .. (65) 75 Hz
Speed range
Oil
charge
➀
fl.oz
CFM
Weight Pipe connections ODS
Version “B” ➁
DL
SL
Discharge Suction
line
line
lbs
Connection thread
Version “R” ➁
DL
SL
Discharge line
Suction line
inch
inch
inch
inch
Electrical data compressor
Rated
Starting
Motor
current
connec- load
amps
LRA
tion
(RLA)
(Amp.)
➂
Amp. ➃
Amp. ➄
320
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80235VA(B/R)2
16 .. 34
35 .. 75 Hz
179
326
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80295VA(B/R)2
20 .. 43
35 .. 75 Hz
179
333
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80385VA(B/R)2
26 .. 55
35 .. 75 Hz
179
337
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80421VA(B/R)2
28 .. 52
35 .. 65 Hz
179
336
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80485VA(B/R)2
32 .. 60
35 .. 65 Hz
179
372
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
See BITZER Software
179
See BITZER Software
35 .. 75 Hz
See BITZER Software
12 .. 26
Contact BITZER
GSD80182VA(B/R)2
Contact BITZER
ORBIT 8 optimized for air-cooled systems and reversible chillers
GSD80235VW(B/R)2
16 .. 34
35 .. 75 Hz
179
326
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80295VW(B/R)2
20 .. 43
35 .. 75 Hz
179
333
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80385VW(B/R)2
26 .. 55
35 .. 75 Hz
179
337
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80421VW(B/R)2
28 .. 52
35 .. 65 Hz
179
336
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
GSD80485VW(B/R)2
32 .. 60
35 .. 65 Hz
179
338
1 3/8
1 5/8
1 3/4 – 12 UNF
2 1/4 – 12 UNF
See BITZER Software
ORBIT 8 Boreal optimized for systems with low condensing temperature
➀ Charged with polyvinyl ether BVC32.
➁ B = Direct brazing connections, R = Rotalock connections.
➂ Motor selection for FI operation depends on application considerations. For full envelope and over-speed capability, selection of the 208/230 V
motor is generally required. Less demanding applications focused on IPLV consideration may be handled by either standard motor, or 380 V
motors. Contact BITZER for assistance in proper selection.
➃ For the selection of inverter.
➄ Data for direct start. With VSD stepless rise of current up to actual load amps – maximum up to rated load amps (RLA).
GSD80182V .. GSD80485V: Oil heater (option) 140 W/115 V, 230 V, 460 V, 575 V.
For dimensional drawings see brochure ESP-135.
8
ESP-133-2
Notes
ESP-133-2
9
Notes
10
ESP-133-2
Notes
ESP-133-2
11
B itze r Kühlmaschinenbau GmbH
Eschenbrünnlestr aße 15 // 71065 Sindelfingen // Germany
Tel +49 (0)70 31 932-0 // Fa x +49 (0)70 31 932-147
bitzer@bitzer.de // w w w.bitzer.de
Subject to change // 80171202 // 12.2014