PRODUCT RANGE
A-201-6 EN
THE HEART OF FRESHNESS
You can’t see our products anywhere. But you can feel them everywhere. That’s because
BITZER compressors are the central element of countless refrigeration and air conditioning systems worldwide – THE HEART OF FRESHNESS. It beats in refrigeration systems
around the world, including building air conditioning and transport cooling. As market
leader, we offer our customers a complete range of pioneering compressor technology.
As a driver of innovation, we set market-defining standards. In this way, we ensure the
perfect temperatures and optimal climate for all applications and in every environment.
ALWAYS LOOKING AHEAD. EQUIPPED FOR THE
­F UTURE WITH CLEVER IDEAS AND INNOVATIONS.
Our products must continually prove themselves in a highly dynamic and complex market. Systems
are becoming more and more networked, increasing the demand for INTELLIGENT COMPRESSORS. In
a globalised world, users are facing increasing competition. This requires products with innovative
power. For energy consumption, this entails using all options in order to become even more efficient.
However, our most important driving force is you – our customers. When it comes to compressor
technology, we provide you with many innovative solutions. You can be assured that THE HEART OF
­FRESHNESS is always beating in time with the market and according to your individual requirements.
OPTIMALLY PREPARED
REGARDLESS OF YOUR PREFERRED REFRIGERANT:
WE HAVE THE OPTI MAL PRODUCT.
BITZER supports you in selecting the refrigerant and optimal compressor for your application. This task doesn’t leave us cold, as we
aim to achieve the highest possible sustainability with maximum
capacity. We will help you find a suitable combination for your
system, as we are committed to helping you obtain the best solution.
INTELLIGENTLY MONITORED
EXPERIENCE FORMS THE BASIS FOR OUR COMPRESSORS. ­I NTELLIGENCE
GIVES THEM THE EDGE.
These days, refrigeration and air conditioning are largely monitored online. Our INTELLIGENT
COMPRESSORS can be readily networked. They perform a variety of tasks for selfmonitoring – from protection and monitoring to recording, communication and reaction.
At BITZER, user friendliness is always the focus of electronics development. With the BEST
SOFTWARE (BITZER Electronics Service Tool), we offer our customers a software tool with
which all BITZER IQ products can be operated. In addition to the simple configuration of
the devices, BEST SOFTWARE offers support for commissioning and troubleshooting.
EXTREMELY EFFICIENT
WITH OUR FUTURE-ORIENTED SOLUTIONS, YOU ARE WELL
­PREPARED FOR THE CHALLENGES OF TOMORROW.
Energy efficiency is a decisive factor for the environment and business. With BITZER
as a partner, you can set up refrigeration and air conditioning systems today that will
meet the energy efficiency standards of tomorrow. As the world’s leading compressor
specialist and innovator, we combat rising costs with developments that repeatedly
set milestones in energy efficiency. BITZER offers compressors with impressive
full and part-load efficiency as well as the best seasonal performance factors.
You benefit from greater economic efficiency and environmental compatibility.
FITS PERFECTLY! THE RIGHT SOLUTION FOR
YOUR APPLICATION.
HFO ready
Compressors with the ‟HFO ready” icon are qualified for operation with HFO (hydrofluoroolefins) refrigerants.
These can be implemented as pure substances, including R1234ze(E) and R1234yf, as well as an HFO/HFC
blend such as R513A, R450A, R449A and R448A. Some of these refrigerants are classified as flammable.
All HFO refrigerants and mixtures feature a high oil solubility. Further information can be found in the safety
and operating instructions in the BITZER SOFTWARE and documentation.
Ecodesign conform
Products with the ‟Ecodesign conform” icon are in accordance with EU Ecodesign Regulation 2015/1095.
On 1 July 2016, the minimum efficiency values defined in the regulation took effect, for instance for air
cooled condensing units as they are manufactured by BITZER. In accordance with Regulation 2015/1095,
only products that correspond to the defined minimum requirements for energy efficiency may be sold in
the EU. Compliance with the Minimum Energy Performance Standards (MEPS) must be confirmed by the
manufacturer via a Declaration of Conformity (CE marking). The actual performance data must be declared
in a supplementary data sheet (according to Annex V of the regulation). Additional information can be found
in the BITZER SOFTWARE and documentation.
IQ – INTELLIGENT COMPRESSORS are a new generation of BITZER products with advanced features such
as simple data communication with superordinate system controllers via MODBUS, comprehensive protection
features such as the active monitoring of application limits, intelligent monitoring of compressor functions for
high-efficiency operation and a datalog function for recording the operating parameters of the compressors
for easy maintenance and service. For user-friendly handling, all IQ products can be intuitively operated
and parametrised with the BEST SOFTWARE (BITZER Electronics Software Tool) provided by BITZER.
BITZER’s INTELLIGENT COMPRESSORS represent protection, monitoring, recording, analysis, visualisation
and communication.
CONTENTS
// RANGE OF SERVICES
Refrigeration // Page 08
Air conditioning and transport applications // Page 09
Additional expertise // Pages 10–11
// REFRIGERATION
Reciprocating compressors // Pages 13–14
Condensing units // Page 15
Screw compressors // Page 16
Heat exchangers and pressure vessels // Page 17
// AIR CONDITIONING
Scroll compressors // Page 19
Screw compressors // Page 20
Reciprocating compressors and condensing units // Page 21
Heat exchangers and pressure vessels // Pages 22–23
// TRANSPORT APPLICATIONS
Reciprocating compressors // Page 25
Scroll compressors // Page 26
Specific solutions // Page 27
// ADDITIONAL EXPERTISE
Process applications // Pages 29–30
Heat exchangers and pressure vessels // Page 31
Heat pump applications // Pages 32–35
HIGHLY DIVERSIFIED! BENEFIT FROM OUR
UNIQUE RANGE OF SERVICES FOR
­R EFRIGERATION AND AIR CONDITIONING.
BITZER is the only independent manufacturer to produce the three compressor technologies: ­reciprocating,
screw and scroll. With our wide range of services, we can implement a suitable solution for all of your
­applications – from low and medium temperature refrigeration to air conditioning and heat pumps. Would
you like to provide refrigeration for a petrol station, a bakery or a supermarket? We deliver the drive. We
can provide you with exactly the product you need – also for commercial and industrial refrigeration as well
as mobile applications such as buses, railway vehicles and ships. Available as single, tandem or trio compressors as well as a complete condensing unit: our compressors ensure the smooth and energy-­efficient
operation of your system. We also offer pressure vessels, heat exchangers and other products that are
crucial for the correct temperature.
// REFRIGERATION
RECIPROCATING COMPRESSORS
2KES-05Y .. 8FE-70Y
Semi-hermetic reciprocating
­compressors (1-stage)
Tandem
Semi-hermetic reciprocating
­compressors with integrated
­frequency inverter
2DES-3.F1Y .. 4NE-20.F4Y
Semi-hermetic reciprocating
­compressors for CO2 applications
2NSL-05K .. 4NSL-30K // 2MME-07K .. 2DME-7K // 2MTE-4K .. 6CTE-50K
S4T-5.2 .. S6F-30.2
Semi-hermetic reciprocating
­compressors (2-stage)
Tandem
Open drive reciprocating compressors
(1-stage)
0 .. VII // 2T.2 .. 6F.2 // W2TA .. W6FA
Open drive reciprocating compressors
(2-stage)
S6H.2 .. S6F.2
0
25
50
75
100
125
150
175
200
225
250
275
300
m3/h
300
m3/h
CONDENSING UNITS
LHV5E/2DES-3.F1Y .. LHV7E/4NE-14.F3Y
ECOSTAR
Air cooled
LH32E/2KES-05Y .. LH265E/6GE-40Y
Water cooled
K073H(B)/2KES-05Y .. K2923T(B)/66FE-100Y
0
25
50
75
100
125
150
175
200
225
250
275
SCREW COMPRESSORS
OS.53/74/85/95
Open drive screw compressors
Parallel compounding
HS.53/64/74/85
Semi-hermetic screw compressors
Parallel compounding
0
08 // RANGE OF SERVICES
250
500
750
1000 1250 1500 1750 2000 2500 3000 3500 4000 m3/h
A-201-6 EN
// AIR CONDITIONING
SCROLL COMPRESSORS
GSD60120 .. GSD80485
Fully hermetic scroll compressors
(vertical)
Tandem
Trio
ESH725 .. ESH743
Fully hermetic scroll compressors
(vertical)
Tandem
0
20
40
60
80
100
120
140
160
180
200
220
240
m3/h
SCREW COMPRESSORS
Semi-hermetic compact screw
­c ompressors
CS.65 .. CS.95
Semi-hermetic compact screw
­c ompressors with integrated
­f requency inverter
CSV.2 .. CSV.3
Parallel systems
Parallel systems
0
250
500
750
1000 1250 1500 1750 2000 2500 3000 3500 4000 m3/h
RECIPROCATING COMPRESSORS
2KES-05Y .. 8FE-70Y
Semi-hermetic reciprocating
­compressors (1-stage)
Tandem
0
25
50
75
100
125
150
175
200
225
250
275
300
m3/h
275
300
m3/h
CONDENSING UNITS
ECOSTAR
LHV5E/2DES-3.F1Y .. LHV7E/4NE-14.F3Y
0
25
50
75
100
125
150
175
200
225
250
// TRANSPORT APPLICATIONS
TRANSPORT COMPRESSORS
2TFC .. 6NFC
Open drive reciprocating compressors
(500 – 3500 min–1)
2EESH-2Y .. 4NEH-20Y
Semi-hermetic reciprocating
­compressors (1-stage)
With frequency inverter
VSK
Hermetic compact screw compressors
With frequency inverter
ELH725 .. ELA743
Fully hermetic scroll compressors
(horizontal)
With frequency inverter
ELV21
Semi-hermetic scroll compressors
(horizontal)
ELV51
0
A-201-6 EN
20
40
60
80
100
120
140
160
180
200
220
240
m3/h
RANGE OF SERVICES // 09
// ADDITIONAL EXPERTISE
PROCESS APPLICATIONS
RECIPROCATING COMPRESSORS
2KES-05Y .. 8FE-70Y
Semi-hermetic reciprocating
­compressors (1-stage)
Tandem
0
25
50
75
100
125
150
175
200
225
250
275
300
m3/h
SCROLL COMPRESSORS
GSD60120 .. GSD80485
Fully hermetic scroll compressors
(vertical)
Tandem
Trio
0
20
40
60
80
100
120
140
160
180
200
220
240
m3/h
SCREW COMPRESSORS
OS.53/74/85/95
Open drive screw compressors
Parallel compounding
HS.53/64/74/85
Semi-hermetic screw compressors
Parallel compounding
CS.65 .. CS.95
Semi-hermetic compact screw
­c ompressors
Parallel systems
Semi-hermetic compact screw
­c ompressors with integrated
­f requency inverter
CSV.2 .. CSV.3
Parallel systems
0
250
500
750
1000 1250 1500 1750 2000 2500 3000 3500 4000 m3/h
HEAT PUMP APPLICATIONS
RECIPROCATING COMPRESSORS
2KES-05Y .. 8FE-70Y
Semi-hermetic reciprocating
­compressors (1-stage)
Tandem
Semi-hermetic reciprocating
­compressors for CO2 applications
2MTE-4K .. 6CTE-50K
0
25
50
75
100
125
150
175
200
225
250
275
300
m3/h
SCREW COMPRESSORS
CS.65 .. CS.95
Semi-hermetic compact screw
­c ompressors
Parallel systems
Semi-hermetic compact screw
­c ompressors with integrated
­f requency inverter
CSV.2 .. CSV.3
Parallel systems
0
250
500
750
1000 1250 1500 1750 2000 2500 3000 3500 4000 m3/h
SCROLL COMPRESSORS
GSD60120 .. GSD80485
Fully hermetic scroll compressors
(vertical)
Tandem
Trio
0
10 // RANGE OF SERVICES
20
40
60
80
100
120
140
160
180
200
220
240
m3/h
A-201-6 EN
HEAT EXCHANG ERS // PRESSURE VESSELS
WATER COOLED CON DENSERS
Capacity at ∆te 10 K
Fresh water condensers
Capacity at ∆te 15 K
Capacity at ∆te 10 K
Seawater condensers
Condensing capacity 0
Capacity at ∆te 15 K
25
50
100
150
200
300
400
500
600
700
800
900
kW
40
45
50
55
60
kW
550
600
dm3
OIL COOLERS
Capacity with water 40/50°C
Water cooled oil coolers
Capacity with water 15/25°C
Capacity with air 43°C
Air cooled oil coolers
Oil cooling capacity 0
Capacity with air 27°C
5
10
15
20
25
30
35
LIQUID RECEIVERS
Horizontal liquid receivers
Standard series (HFC, HFO)
Vertical liquid receivers
Horizontal liquid receivers
K series (R410A, subcritical CO2)
Vertical liquid receivers
Horizontal liquid receivers
A series (NH3)
Horizontal liquid receivers
P series (hydrocarbons)
Receiver volume 0
Vertical liquid receivers
50
100
150
200
250
300
350
400
450
500
OIL SEPARATORS
Air conditioning
Refrigeration (medium temp.)
OA vertical series (HFC)
Refrigeration (low temp.)
Air conditioning
Refrigeration (medium temp.)
OA-A vertical series (NH3)
Refrigeration (low temp.)
Air conditioning
OAC combined vertical series
(NH3)
Refrigeration (medium temp.)
Refrigeration (low temp.)
Air conditioning
OAHC combined horizontal series
(NH3)
Compressor theoretical displacement 0
A-201-6 EN
Refrigeration (medium temp.)
Refrigeration (low temp.)
100
200
300
500
750
1000 1500 2000 2500 3000 3500 4000 m3/h
RANGE OF SERVICES // 11
// REFRIGERATION
CONSISTENTLY COLD! GOOD IF YOUR
­COOLI N G CHAI N CONSISTS OF ON LY
STRONG LI N KS.
When it comes to refrigeration, BITZER compressors are the best choice: regardless of external
conditions, they demonstrate their ability to keep the temperature at a constant level where it
counts. For example in commercial refrigeration, where it is crucial to reliably bring the cooling
chain to the customer, or in industry in the low temperature storage facilities of retail chains,
the blast-freezing of food or the freeze-drying of medicine.
RECIPROCATING COMPRESSORS
HFO ready
HFO ready
HFO ready
OPTION
SEMI-HERMETIC DESIGN: ECOLINE SEMI-HERMETIC DESIGN
WITH OPTIONAL IQ MODULE
WITH INTEGRATED ­FREQUENCY
­INVERTER: ­VARISPEED
SEMI-HERMETIC DESIGN
WITH EXTERNAL ­­FREQUENCY
­INVERTER: ­VARIPACK
Universal and environmentally friendly:
Refrigeration systems are designed for
VARIPACK frequency inverters have been
in addition to HFC refrigerants, ­ECOLINE
maximum load conditions. For applica-
specially designed for operation with
compressors are optimised for low GWP
tions with large load fluctuations, BITZER
BITZER compressors. The flexibility in
and HFO refrigerants. A modified ­series
offers two VARISPEED series matching
adapting the cooling demand of a sys-
is available for hydrocarbons such as
ECOLINE and compressors for CO2 appli-
tem and optimal adjustment of the com-
Propane. The compressors offer high
cations. Infinitely variable speed control
pressor and inverter save energy. The
cooling capacity with minimal energy re-
with frequency inverters guarantees max-
frequency inverter speaks the language
quirements. The optional CRII mechani-
imum part-load efficiency. The integrated
of refrigeration, ensuring simple, relia-
cal capacity control guarantees high part-
frequency inverter makes the VARISPEED
ble handling. The selection is done with
load efficiency in the medium and low
compressor the most compact and easi-
BITZER SOFTWARE and the con­figuration
­temperature range. Optional for all com-
est-to-install frequency inverter solution.
with BEST SOFTWARE. The optional ex-
pressors from the CE4 series onwards:
Suction gas cooling also eliminates the
tension kit for pressure control offers
the IQ MODULE actively monitors and
need to service the inverter.
added value.
protects the compressor, ensuring maximum operating reliability.
2.5 .. 309 m³/h at variable speed //
4.1 .. 221 m³/h at 50 Hz
A-201-6 EN
8.1 .. 99.2 m³/h at variable speed
0.78 .. 65.7 m³/h at variable speed (CO2)
REFRIGERATION // 13
RECIPROCATING COMPRESSORS
HFO ready
HFO ready
OPTION
SEMI-HERMETIC DESIGN:
­O CTAGON FOR CO 2 ­APPLICATIONS
WITH OPTIONAL IQ MODULE
SEMI-HERMETIC 2-STAGE DESIGN
OPEN DRIVE DESIGN
With the compressors for CO 2 applica-
Extreme low temperature applications
Open drive compressors are an ideal
tions, BITZER offers future-oriented so­
with evaporation temperatures as low as
alternative for numerous applications.
lutions with maximum energy efficiency
–70°C are high demanding for the com-
Three series are available. Models with
and reliability for numerous applications.
pressor. The 2-stage compressor series
two, four and six cylinders have been de-
There are three series: a series for sub-
is accordingly robust, ­reliable and flexi-
signed for coupling and belt drive. These
critical applications in the low tempera-
ble for use with various refrigerants. To
compressors have been optimised for
ture stage of cascade and booster sys-
further increase capacity and efficiency,
HFC, low GWP refrigerants and, in modi-
tems, an extended series for sub­critical
the compressors are also available with
fied design, for operation with ammonia.
applications up to 100 bar standstill
optional liquid subcoolers integrated at
The 2-stage models are particularly well
pressure, and a series for transcritical
the factory.
suited for low temperature applications,
applications in booster systems and for
while the robust compressors of the
parallel compression. From the C4 ­series
0-VII series are ideal for lower cooling
onwards, the IQ MODULE is optionally
­c apacities. All open drive compressors
available for compressor protection,
enable individual motor allocation and
­active monitoring and communication.
operation in a wide speed range.
3.3 .. 38.1 m³/h at 50 Hz transcritical //
1.3 .. 46.9 m³/h at 50 Hz subcritical
14 // REFRIGERATION
19.7 .. 101 m³/h at 50 Hz
0.96 .. 151 m³/h at 1450 min–1
A-201-6 EN
CONDENSING UNITS
HFO ready
HFO ready
Ecodesign conform
Ecodesign conform
HFO ready
AIR COOLED CONDENSING
UNITS WITH ­INTEGRATED
­FREQUENCY INVERTER: ­ECOSTAR
AIR COOLED CONDENSING
UNITS 1-STAGE WITH ECOLINE
­COMPRESSOR OR 2-STAGE
WATER COOLED CONDENSING
UNITS 1-STAGE WITH ECOLINE
COMPRESSOR OR 2-STAGE
The specific unit controller and the var-
The components of the air cooled con-
The efficient ECOLINE compressors and
iable speed of the frequency-controlled
densing units, such as efficient ECOLINE
the other components of the water cooled
ECOLINE V
­ ARISPEED compressor and
compressors, EC fans and system-opti-
condensing units provide a perfectly
EC fans fulfil all criteria of the Ecodesign
mised condenser heat exchangers (mini
matched overall concept. This results in a
Regulation. Large capacity range, individ-
channel) are optimally matched and have
comprehensive range of applications and
ually adjustable control, sound-reduced
a compact construction. The design is
capacities. Other key features include a
operation and robust outdoor housing
robust, enabling a whole host of appli-
robust design, compact dimensions and
­offer numerous application possibilities
cations with a large range of capacities.
numerous variants, including versions for
in medium and low temperature systems.
Future-proof use is ensured by conformity
seawater. The condensing units are also
Thanks to comprehensive equipment, in-
with the Ecodesign Regulation and op-
well equipped for the future. Low GWP
stallation is quick and easy and there is
tional use with low GWP refrigerants.
refrigerants are ­intended for use.
4.1 .. 127 m³/h at 1450 min–1
4.1 .. 303 m³/h at 1450 min–1
no need to install additional components.
System control, monitoring, data logging
and remote access to the device controller
are easier than ever and offer significant
benefit thanks to BEST SOFTWARE.
8.1 .. 99.2 m³/h at variable speed
A-201-6 EN
REFRIGERATION // 15
SCREW COMPRESSORS
HFO ready
OPTION
SEMI-HERMETIC DESIGN:
HS WITH OPTIONAL IQ MODULE
OPEN DRIVE DESIGN:
OS // OS.A95 STANDARD WITH
IQ MODULE
Thanks to the HSK variant for air condi-
For the open drive screw compressors for
tioning/medium temperature application,
operation with external motors, the re-
the HSN variant for medium/low tempera-
frigerant circuit and motor are separated.
ture application, and the use of numerous
The series is extended to ammonia ap-
refrigerants, the robust screw compressor
plications for industrial refrigeration and
with highly efficient suction gas-cooled
includes the OSK variant for high/medium
motor has a wide range of uses. The inte­
temperature application and the OSN var-
grated capacity control is efficient, multi­
iant for medium/low temperature appli-
step and, from HS.85 onwards, optionally
cation. An efficient, multistep and, start-
infinitely adjustable. The capacity con-
ing with the OS.85, optionally infinitely
trol and start unloading via speed control
variable capacity control is integrated.
through an external frequency inverter
OS.A95 with IQ MODULE, including in-
offer an alternative. One option is the
finitely adjustable capacity and automatic
­simple parallel compounding set-up. Op-
Vi adaptation. The capacity control and
tions: Eco operation for more refrigerat-
start unloading via speed control through
ing capacity/energy efficiency and version
an external frequency inverter offer an
with IQ MODULE.
alternative. One option is the simple parallel compounding set-up.
84 .. 535 m³/h at 50 Hz
16 // REFRIGERATION
84 .. 1015 m³/h at 2900 min–1
A-201-6 EN
HEAT EXCHANG ERS // PRESSURE VESSELS
HFO ready
HFO ready
HFO ready
OI L SEPARATORS //
OI L COOLERS
WATER COOLED CONDENSERS
LIQUID RECEIVERS
Oil separation and oil cooling are essen-
Highly efficient and reliable, K series con-
110 models provide the most complete
tial functions in many refrigeration sys-
densers represent the best solution when-
range of solutions for liquid refrigerant
tems, ensuring perfectly smooth system
ever water is available as cooling agent.
storage. There are several versions avail-
operation. Primary, secondary and com-
HFC, HFO and Propane can be used as re-
able featuring both vertical and horizontal
bined separator models are used in NH3,
frigerants. Fresh water models (featuring
configuration. The standard version for
HFC or HFO applications, with ­single or
copper pipes) as well as seawater resist-
HFC and HFO, as well as the G version
­multi-compressor arrangements. To reach
ant models (featuring copper-nickel pipes)
designed for high mass flow applications
the most appropriate separation effi-
are equipped with a special, low-fouling
work with 33 bar maximum allowable
ciency, centrifugal, gravity and filtration
inner design on the coolant side, ensur-
pressure. The P version works with Pro-
stages can be combined. In particular,
ing high-consistency performance during
pane and Propylene at 33 bar. The K ver-
the new OAHC horizontal 3-stage separa-
the entire condenser life. The condensers
sion for R410A and subcritical CO2 works
tors for ammonia applications can take
feature highly robust components, tube
with 45 bar maximum allowable pressure.
the final ­carry-over rate to an impressive
sheets and – in case of seawater applica-
Also available is a version for NH3 working
< 10 ppm. A complete range of water
tions – end covers with resistant plastic
with 28 bar maximum allowable pressure.
cooled and air cooled oil coolers ensures
coating protection. CE, EAC, SELO, BV,
A comprehensive series of accessories, as
additional cooling with low-pressure drop
GL, RS and LR approvals are available.
well as CE, EAC, SELO, BV, GL, RS and LR
values and reduced energy consumption.
approvals, are all available.
Suction flow 40 .. 4300 m³/h //
Oil cooling capacity 10 .. 60 kW
A-201-6 EN
Condensing capacity 8 .. 913 kW
Receiver volume 3 .. 550 dm³
REFRIGERATION // 17
// AIR CONDITIONING
QUITE PLEASANT! IT’S A GOOD THI NG
WHEN WE CAN ENSURE A PLEASANT
­C LIMATE AROUND THE WORLD.
BITZER products in air conditioning ensure that people are able to breathe freely
everywhere: regardless of season and building type, they provide your customers with
comfortable temperatures. We take into account the increasing demands for air conditioning
in buildings and guarantee maximum well-being with superior quality – in residential, public
and commercial buildings.
SCROLL COMPRESSORS
HERMETIC DESIGN:
ORBIT 6 // ORBIT 8
HERMETIC DESIGN:
ESH7
The series designed for air conditioning
The innovative scroll technology offers
and heat pump applications offers high
high performance and energy efficiency.
energy efficiency at full and part-load
The range of applications includes air
conditions. Accordingly high seasonal effi-
conditioning systems and heat pumps
ciencies can be achieved. Thanks to BAHT
­u sing the refrigerants R134a, R407C,
(BITZER Advanced Header Technology),
R404A and R22. The ESH7 hermetic scroll
compressors with different cooling capac-
compressors can also be used in tandem
ity can be operated as tandem or trio as-
compound operation.
semblies via a common pipe line system
without an active oil management system.
The scroll compressors can be operated
with a fixed speed or variable speed drive
with frequency inverter. These ­series are
suitable for the refrigerant R410A and alternative refrigerants. Further advantages
are the low oil carry over and the high
level of process reliability.
A-201-6 EN
19.8 .. 77.2 m³/h at 50 Hz
25 .. 43 m³/h at 50 Hz
(single compressor)
(single compressor)
AIR CONDITIONING // 19
SCREW COMPRESSORS
HFO ready
HFO ready
OPTION
SEMI-HERMETIC COMPACT
DESIGN: CS.3 WITH OPTIONAL
IQ MODULE
SEMI-HERMETIC COMPACT
DESIGN WITH ­FREQUENCY
­INVERTER: CSV
Thanks in part to a highly efficient, suc-
The intelligent, network-compatible screw
tion gas-cooled motor, the screw com-
compressor in full and part-load already
pressors with optimised energy efficiency
complies with future standards for liquid
can be used with numerous refrigerants.
chillers. The integrated refrigerant-cooled
There is a CSH variant for air cooled li­
frequency inverter ensures stable opera-
quid chillers, heat pumps for space heat-
tion and precise temperature profile for
ing, and a CSW variant for water cooled
the medium to be cooled. Available in
and air cooled ­liquid chillers for operation
the CSVH variant for air cooled condens-
at low condensing temperatures. The
ing, reversible systems and heat pumps
flanged oil separator enables easy system
optimised for space heating. The CSVW
integration and compact circuits. The op-
variant for water cooled and air cooled
tional IQ MODULE for variants CS.65 .. 95
liquid chillers for operation at low con-
­offers new, enhanced protective functions
densing temperatures. Applicable for DX
such as application limit monitoring and
and flooded evaporation.
communication interfaces to higher-level
controllers.
137 .. 1120 m³/h at 50 Hz
20 // AIR CONDITIONING
110 .. 1156 m³/h at variable speed
A-201-6 EN
RECIPROCATING COMPRESSORS // CONDENSING UNITS
HFO ready
HFO ready
Ecodesign conform
OPTION
SEMI-HERMETIC DESIGN:
­ECOLINE WITH OPTIONAL
IQ MODULE
AIR COOLED CONDENSING UNITS
WITH ­INTEGRATED ­FREQUENCY
INVERTER: ­ECOSTAR
The ECOLINE series is universally appli-
The specific unit controller and the var-
cable for all air conditioning applications.
iable speed of the frequency-controlled
In addition to applications with R134a,
ECOLINE ­VARISPEED compressor and EC
all ECOLINE models are also optimised
fans fulfil all criteria of the Ecodesign Reg-
for low GWP, including HFO refrigerants
ulation. Large capacity range, individually
and HFO blends. The CRII mechanical ca-
adjustable control, sound-reduced oper-
pacity control or the use of a frequency
ation and robust outdoor housing offer
inverter ensure high part-load efficiency.
numerous potential applications for air
The IQ MODULE is optionally available for
conditioning systems. Thanks to compre-
all compressors from the CE4 series. It
hensive equipment, installation is quick
protects, actively monitors and communi-
and easy and there is no need to install
cates with the system controller, thereby
additional components. System control,
ensuring maximum operating reliability.
monitoring, data logging and remote
­access to the device controller are ­easier
than ever and offer significant benefit
thanks to BEST SOFTWARE.
4.1 .. 221 m³/h at 50 Hz
A-201-6 EN
8.1 .. 99.2 m³/h at variable speed
AIR CONDITIONING // 21
HEAT EXCHANG ERS // PRESSURE VESSELS
HFO ready
OI L SEPARATORS //
LIQUID RECEIVERS
There is a complete range of oil separators as well as liquid receivers available.
Oil separators, in ver­tical and horizontal
configuration, are ­approved for operation
with HFC, HFO and NH3. Thanks to centrifugal, gravity and filtration separation
options, the highest degree of efficiency
is guaranteed for any air conditioning application. For flooded systems, a specific
separator series has been developed. The
liquid receiver range includes models for
HFC, HFO, subcritical CO 2 and NH 3, as
well as a special version for high mass
flow rates. With vertical and horizontal
solutions, perfect integration into air conditioning systems is ensured.
Suction flow 40 .. 4300 m3/h //
Receiver volume 3 .. 550 dm3
22 // AIR CONDITIONING
A-201-6 EN
HFO ready
WATER COOLED CONDENSERS //
OI L COOLERS
K series condensers guarantee maximum performance and flexibility whenever fresh water or seawater is available for medium and low temperature
refrigeration applications. They can be
used in HFC or HFO ­s ystems, while a
special version for Propane and Propy­
lene is also available. K s­eries condensers provide low-pressure drop values and high consistency performance­
during the entire condenser life – thanks
to highly robust materials and corrosion
protection treatment, including components such as tube sheets and water
boxes. A complete range of water cooled
and air cooled oil coolers ensures additional cooling, with low-pressure drop
values and reduced energy consumption.
Condensing capacity 8 .. 913 kW //
Oil cooling capacity 10 .. 60 kW
A-201-6 EN
AIR CONDITIONING // 23
// TRANSPORT APPLICATIONS
RELAXED EN ROUTE! TH IS IS HOW
WELL-BEING IS TRANSPORTED AROUND
THE WORLD.
Even when en route or at work, people do not want to give up a pleasant climate. In buses
and trains, the versatile BITZER compressors ensure that travellers comfortably reach their
destinations. In the cabs of cranes and trucks, they also help operators and drivers to maintain
high concentration and performance levels at work.
RECIPROCATING COMPRESSORS
HFO ready
OPEN DRIVE DESIGN:
BITZER ROADSTAR
SEMI-HERMETIC DESIGN:
­ECOLI NE H SERIES
The extremely reliable BITZER compres-
The H series is a further development
sors of the ROADSTAR series have been
of the established ECOLINE ­compressor
optimised for mobile refrigeration and air
­s eries. The drive gear was adapted in
conditioning applications. The optional
­o rder to guarantee highest reliability
capacity control contributes to the high
even under difficult operating conditions
energy efficiency. Thanks to the oil collec-
and thus meet the special requirements
tion chamber, the easy-to-maintain shaft
of mobile application. The mechanical
seal and the additional oil drain plugs, the
CRII capacity regulator or the use of a
models are particularly service-friendly.
frequency inverter ensure high part-load
This innovative technology has set stand-
efficiency.
ards in bus air conditioning. The BITZER
ROADSTAR series is available with two,
four or six cylinders.
20.7 .. 84.4 m³/h at 1450 min–1
A-201-6 EN
11.4 .. 56.3 m³/h at 50 Hz
TRANSPORT APPLICATIONS // 25
SCROLL COMPRESSORS
SEMI-HERMETIC DESIGN:
SPEEDLITE ELV21 // ELV51
HORIZONTAL HERMETIC DESIGN:
ELH // ELA
The new SPEEDLITE compressor, which
Thanks to the horizontal and space-saving
was specially designed for mobile appli-
design, the scroll compressors are suitable
cation, offers the ideal solution for the
for compact air conditioning systems. The
lightest and most compact air condition-
scroll compressor features high efficiency
ing systems for buses, railway vehicles
and smooth running thanks to the special
and other vehicles. Both sizes feature
cooling of the spirals, as well as low noise
a large range of control with which
and vibration levels.
the compressor capacity can be easily adapted to all operating conditions.
This ensures optimal full and part-load
efficiency. Thanks to its ready integrated
frequency inverter, this compressor is no
problem to install.
2.7 .. 43 m³/h at variable speed
26 // TRANSPORT APPLICATIONS
25 .. 43 m³/h at 50 Hz
A-201-6 EN
SPECIFIC SOLUTIONS
HERMETIC SCREW COMPRESSORS:
VSK
COMPRESSORS FOR CONTAINER
REFRIGERATION: S4BCF-5.2(Y)
The compressors are tailored to the spe-
Always the perfect temperature: StarCool
cific needs of mobile air conditioning,
container refrigeration is the result of an
for instance in railway vehicles or hybrid
intensive cooperation between Maersk
buses. The compact design allows for
Container Industry and BITZER. It is used
easy installation and quiet operation. The
in containers for the temperature control
generously dimensioned roller bearings
of perishable goods such as foodstuffs
ensure very high reliability and a long
in transit. At the heart of the system is
service life. Thanks to the wide control
a particularly compact, lightweight, and
range with frequency inverter operation,
low-vibration 2-stage aluminium compres-
the compressor capacity can be optimally
sor. Equipped with integrated frequency
adapted to any operating condition. A me-
inverter for superior efficiency and oper-
chanical capacity regulator is used in the
ating reliability. An impressive concept:
VSK31 (optional) and VSK41 (standard)
within seven years, the StarCool system
models.
has achieved a high market share. And
the success story continues. In containers
around the world, the perfect temperature prevails.
46 .. 80 m³/h at 50 Hz
A-201-6 EN
9.5 .. 41.8 m³/h at variable speed
TRANSPORT APPLICATIONS // 27
// ADDITIONAL EXPERTISE
WELL TEMPERED! WE ARE REFRIG ERATION EXPERTS AN D FEEL RIGHT AT
HOME EVEN IN WARM ENVIRONMENTS.
When it comes to process cooling in modern industrial plants, our compressors ensure reliable
processes. Data centres can only achieve high performance with proper, consistent cooling.
Another application is the cooling of laser cutting machines in metalworking, which ensures
optimal results. For many decades, we as an independent manufacturer have been a leader in
the area of refrigeration and air conditioning, and offer heat exchangers and pressure vessels
of exceptional quality. We also offer products that are crucial for the correct temperature for
process and heat pump applications.
PROCESS APPLICATIONS
HFO ready
HFO ready
OPTION
OPTION
SEMI-HERMETIC RECIPROCATING
COMPRESSORS: ECOLINE WITH
OPTIONAL IQ MODULE
HERMETIC SCROLL COMPRESSORS:
ORBIT 6 // ORBIT 8
SEMI-HERMETIC COMPACT
SCREW COMPRESSORS: CS.3
WITH O
­ PTIONAL IQ ­M ODULE
Reciprocating compressors are suitable
Data centres can only achieve optimal
Several optimisations – including the fur-
for various applications in the area of
performance with good cooling and at
ther development of the rotor profile, the
process refrigeration and air ­conditioning.
constant temperature. ­ORBIT compres-
reduced oil circulation rate and the suc-
In addition to HFC refrigerants, refrig-
sors operate efficiently at the required
tion gas-cooled motor – serve to increase
erants with low GWP such as HFO and
high evaporation temperatures of up to
the efficiency. A variety of refrigerants
HFO blends are used. The mechanical
+20°C. Accordingly high seasonal effi-
makes the application flexible. The CSH
CRII capacity control or operation with
ciencies can be achieved. Thanks to BAHT
variant has been designed for air cooled
the ­VARIPACK frequency inverter ensure
(BITZER Advanced Header Technology),
liquid chillers, reversible systems and
high part-load efficiency of the entire
compressors with different cooling ca-
heat pumps, while the CSW variant has
system.
pacity can be operated as tandem or trio
been designed for water cooled and air
The IQ MODULE is optionally available for
assemblies via a common pipe line sys-
cooled liquid chillers that are operated at
all compressors from the CE4 series. It
tem without an a
­ ctive oil management
lower condensing temperatures.
protects, actively monitors and communi-
system. The scroll compressors can also
The optional IQ MODULE for variants
cates with the system controller, thereby
be operated with variable speed with fre-
CS.65 .. 95 offers enhanced protective
ensuring maximum operating reliability.
quency inverter. These series are suitable
functions, including operating limit mon-
for the refrigerant R410A and alternative
itoring and communication interfaces to
refrigerants. Further advantages are the
higher-level controllers.
low oil carry over and the high level of
process reliability.
19.8 .. 77.2 m³/h at 50 Hz
4.1 .. 221 m³/h at 50 Hz
A-201-6 EN
(single compressor)
137 .. 1120 m³/h at 50 Hz
ADDITIONAL EXPERTISE // 29
PROCESS APPLICATIONS
HFO ready
HFO ready
OPTION
SEMI-HERMETIC COMPACT
SCREW COMPRESSORS WITH
­FREQUENCY ­INVERTER: CSV
SEMI-HERMETIC SCREW COMPRESSORS: HS WITH OPTIONAL
IQ MODULE
OPEN DRIVE SCREW
­COMPRESSORS: OS // OSA.95
STANDARD WITH IQ MODULE
The intelligent, network-compatible screw
Thanks to the HSK variant for air con-
For the open drive screw compressors
compressor now allows OEM manufactur-
ditioning/medium temperature applica-
for operation with external motors, the
ers to comply with future standards for
tion, the HSN variant for medium/low
refrigerant circuit and motor are sepa-
liquid chillers. The integrated refriger-
temperature application, and the use of
rated. The series is extended to ammonia
ant-cooled frequency inverter ensures
numerous refrigerants, the robust screw
applications for industrial refrigeration
stable operation and precise temperature
compressor with highly efficient suction
and includes the OSK variant for high/
profile for the medium to be cooled. Avail-
gas-cooled motor has a wide range of
medium temperature application and the
able in the CSVH variant for air cooled
uses. The integrated capacity control is
OSN variant for medium/low temperature
condensing, reversible systems and heat
efficient, multistep and, from HS.85 on-
application. An efficient, multistep and,
pumps optimised for space heating. The
wards, optionally infinitely adjustable.
starting with the OS.85, optional infinitely
CSVW variant for water cooled and air
The capacity control and start unloading
variable capacity control is integrated.
cooled liquid chillers for operation at low
via speed control through an external fre-
OS.A95 with IQ MODULE, including in-
condensing temperatures. Applicable for
quency inverter offer an alternative. One
finitely adjustable capacity and automatic
DX and flooded evaporation.
option is the simple parallel compounding
Vi adaptation. The capacity control and
set-up. Options: Eco operation for more
start unloading via speed control through
refrigerating capacity/energy efficiency
an external frequency inverter offer an
for applications with high pressure con-
alternative. One option is the simple par-
ditions and version with the IQ MODULE.
allel compounding set-up.
84 .. 535 m³/h at 50 Hz
84 .. 1015 m³/h at 2900 min–1
110 .. 1156 m³/h at variable speed
30 // ADDITIONAL EXPERTISE
A-201-6 EN
HEAT EXCHANG ERS // PRESSURE VESSELS
HFO ready
HFO ready
OI L SEPARATORS //
LIQUID RECEIVERS
WATER COOLED CONDENSERS //
OI L COOLERS
In many cooling systems, oil separators
K series condensers reliably work within
ensure smooth operation for the com-
a wide range of refrigerant and water
pressors working at full or partial load
flow conditions and can be used in HFC
365 days per year. With HFC, HFO or NH3,
or HFO systems, while a special ver-
best separation results can be obtained
sion for Propane and Propylene is also
and oil can safely return to the compres-
available. With fresh water or seawater
sor in dry-expansion or flooded evap­
versions available, K series condensers
oration applications. With centrifugal and
provide low-­p ressure drop values and
gravity separation combined, separators
impressive reliability thanks to highly
operate with excellent efficiency follow-
robust materials, suitable for different
ing the load variation of the process. The
cooling media, including components
liquid receiver range includes models for
such as tube sheets and water boxes.
HFC, HFO, subcritical CO 2, NH 3, and a
A complete range of water cooled and
­special version for high mass flow rates.
air cooled oil coolers ensures additional
With vertical and horizontal solutions, the
cooling, with low-­p ressure drop values
perfect integration into any process cool-
and reduced energy consumption.
ing system is ensured.
A-201-6 EN
Suction flow 40 .. 4300 m3/h //
Condensing capacity 8 .. 913 kW //
Receiver volume 3 .. 550 dm3
Oil cooling capacity 10 .. 60 kW
ADDITIONAL EXPERTISE // 31
HEAT PUMP APPLICATIONS
HFO ready
OPTION
OPTION
SEMI-HERMETIC RECIPROCATING
COMPRESSORS: ECOLINE WITH
OPTIONAL IQ MODULE
SEMI-HERMETIC ­RECIPROCATING
COMPRESSORS FOR CO 2 APPLICATIONS WITH OPTIONAL
IQ ­M ODULE
The ECOLINE models are versatile and
For use in heating pumps, compressors
universally applicable in heat pumps.
for transcritical CO2 applications are an
In addition to applications with R134a,
environmentally friendly, efficient and re-
all ECOLINE models are also optimised
liable solution. The compressors can be
for low GWP, HFO refrigerants and HFO
used for a wide range of applications. In
blends. All models are also suitable for
addition to conventional applications, the
operation with high-temperature heat
compressors are particularly well suited
pumps, for instance with the R245fa,
for heat pumps for hot water up to 90°C.
R227fa, R236fa and R1234ze(E) refrig-
The optionally available IQ MODULE en-
erants. The CRII mechanical capacity
sures maximum operating reliability.
control or the use of a frequency inverter
ensure high part-load efficiency.
The optionally available IQ MODULE for
the CE4 series and onwards ensures
maximum operating reliability.
4.1 .. 221 m³/h at 50 Hz
32 // ADDITIONAL EXPERTISE
3.3 .. 38.1 m³/h at 50 Hz
A-201-6 EN
HFO ready
HFO ready
OPTION
A-201-6 EN
SEMI-HERMETIC COMPACT
SCREW COMPRESSORS: CS.3
WITH O
­ PTIONAL IQ ­M ODULE
SEMI-HERMETIC COMPACT
SCREW COMPRESSORS WITH
­INTEGRATED ­FREQUENCY
­INVERTER: CSV
Several optimisations – including the
The network-compatible screw compres-
further development of the rotor profile,
sor offers superior energy efficiency at full
the reduced oil circulation rate, and the
and part-load. All components are pre-
suction gas-cooled motor – serve to in-
wired and tested. Integrated application
crease the efficiency. A variety of refrig-
limit monitoring also ensures maximum
erants makes the application flexible.
operating reliability. The CSV technology
The CSH variant is designed for normal
is well suited for large commercial and in-
and high-temperature heat pumps, while
dustrial heat pumps in the area of process
the CSW variant is designed for low-­
applications and space heating. There is
temperature heat pumps.
a CSVH variant for reversible systems
The optional IQ MODULE offers advanced
with combined cooling-heating operation
protection functions, including applica-
and heat pumps to approximately 60°C
tion limit monitoring, communication
­medium-supply temperature as well as a
interfaces to higher-level controls and
CSVW variant for low-temperature heat
automatic datalog of the operating para­
pumps. The integrated f­requency inverter
meters.
often eliminates the need for buffer tanks.
137 .. 1120 m³/h at 50 Hz
110 .. 1156 m³/h at variable speed
ADDITIONAL EXPERTISE // 33
HEAT PUMP APPLICATIONS
HERMETIC SCROLL COMPRESSORS:
ORBIT 6 // ORBIT 8
Thanks to the high condensing temperature, the scroll compressors of the ­ORBIT
series are particularly well suited for reversible heat pumps with the refrigerant
R410A. Accordingly high seasonal efficiencies can be achieved. The wide range
of applications allows for the operation
of low-temperature systems and thereby
ensures comfort and a perfect feel-good
atmosphere. The compressor can also be
used in the area of sanitary hot water
as well as for the heating of water for
showers or swimming pools. Further advantages are the low oil carry over and
the high level of safety. Scroll compressors with a fixed and variable speed drive
can be used.
19.8 .. 77.2 m³/h at 50 Hz
(single compressor)
34 // ADDITIONAL EXPERTISE
A-201-6 EN
HFO ready
A-201-6 EN
HFO ready
LIQUID RECEIVERS //
OI L SEPARATORS
WATER COOLED CONDENSERS //
OI L COOLERS
There is a complete range of liquid re-
K series shell and tube condensers are
frigerant storage and oil separation solu-
suitable to operate both warm and hot-
tions available. The liquid receiver range
temperature water heat pump systems –
includes models for HFC, HFO, subcritical
optimal performance and pressure drop
CO2, NH3 and a special version for high
value can be reached under any condi-
mass flow rates. In the heat pump ­system,
tions. The same condenser model can be
receivers are crucial for compensating for
used in HFC or HFO systems, while a spe-
variations in the refrigerant flows. Vertical
cial version for Propane and Propylene is
and horizontal receivers can be easily inte-
available. With fresh water or seawater,
grated into the most compact heat pump
the use of a special low fouling design for
unit. For large size heat pump systems, oil
the inside of the pipes prevents the for-
separators in vertical and horizontal con-
mation of deposits, a common risk when
figuration are approved for operation with
water temperature rises above 30°C.
HFC, HFO and NH3. The new OAHC hori-
A complete range of water cooled and air
zontal 3-stage separators for NH3 appli­
cooled oil coolers ensures additional cool-
cations can take the final ­carry-over rate
ing, with low-pressure drop values and
to an impressive < 10 ppm.
reduced energy consumption.
Receiver volume 3 .. 550 dm3 //
Condensing capacity 8 .. 913 kW //
Suction flow 40 .. 4300 m3/h
Oil cooling capacity 10 .. 60 kW
ADDITIONAL EXPERTISE // 35
BITZER 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 // 80001003 // 09.2016