Hanbell RC2 Series User manual

5580 Enterprise Pkwy., Fort Myers, FL 33905 O󰀩ce [phone] Fax: [phone]
www.mcscontrols.com
High-efciency
Model
RC2 Series
Screw Compressor
New generation of
innovative design
Screw compressor
TECHNICAL MANUAL
VERSION 2.0 -10-18-2018

Technical Manual VERSION 2.0 -10-18-2018
2
1. General ........................................................................................................................................ 1
2. Specifications and description of design ................................................................................. 1
2.1 Compressor nomenclature ............................................................................................... 1
2.2 Compressor specifications .............................................................................................. 2
2.3 RC2 series compressor construction .............................................................................. 4
2.4 Design features.................................................................................................................. 6
2.5 Compression process ....................................................................................................... 7
2.6 Capacity control system ................................................................................................... 7
2.7 3 or 4step capacity control system ................................................................................. 8
2.8 Continuous (stepless) capacity control system ............................................................. 9
2.9 Dual capacity control system (optional) ........................................................................ 11
2.10 Compressor volume ratio (Vi) ...................................................................................... 12
2.11 Application limits ........................................................................................................... 12
2.12 MCC and LRA................................................................................................................ 15
3. Lubricants ................................................................................................................................. 17
3.1 Lubricants table ............................................................................................................... 17
3.2 Precautions of changing oil .......................................................................................... 18
3.3 Oil change ........................................................................................................................ 18
4. Compressor handling and installation ................................................................................... 19
4.1 Compressor lifting ........................................................................................................... 19
4.2 Mounting the compressor .............................................................................................. 20
4.3 RC2 compressor outline drawings .............................................................................. 21
4.4 Compressors accessories .............................................................................................. 44
4.5 Installation and connection of compressor .................................................................. 58
5. Electrical data and design ....................................................................................................... 61
5.1 Motor design .................................................................................................................... 61
5.2 Compressor protection devices ..................................................................................... 64
5.3 Power supply ................................................................................................................... 64
5.4 Grounding ........................................................................................................................ 65
6. Operation and maintenance .................................................................................................... 66
6.1 Compressor startup ....................................................................................................... 66
6.2 Troubleshooting .............................................................................................................. 67
6.3 Compressor checking list ............................................................................................... 68
7. Applications .............................................................................................................................. 69
7.1 Additional cooling ........................................................................................................... 69
7.2 Economizer applications ................................................................................................ 72
7.3 Parallel system applications .......................................................................................... 73
7.4 Oil pump application ....................................................................................................... 74
7.5 Important note of applications of compressor ............................................................. 74
8 Selection software ..................................................................................................................... 75
9. Warranty .................................................................................................................................... 77
Appendix. RC2 Compressor noise level .................................................................................... 78

Technical Manual VERSION 2.0 -10-18-2018
3

 


1. General
HANBELL RC2 series semihermetic screw compressor is developed especially for applications in airconditioning and
refrigeration. With high operating load design, each HANBELL compressor is of high efficiency and reliability in all
operating conditions such as thermal storage, heat pump system & refrigeration. Each HANBELL compressor has the
latest and advanced 5to6 Patented Screw Rotor Profile designed to ensure high capacity and efficiency in all
operating conditions. Each unit is carefully manufactured and inspected by high precision THREAD SCREW ROTOR
GRINDING MACHINE, CNC MACHINING CENTER, and 3D COORDINATE MEASURING MACHINE. Each HANBELL
compressor follows ISO 9001 quality system. This certification assures that its quality is controlled under severe quality
procedures and good service to all customers.
RC2 series compressor is equipped with separated radial and axial bearings, liquid injection and economizer connection,
PTC motor temperature thermistors and discharge temperature thermistors, a motor protector, and oil level switch and
oil pressure differential switch connector and other accessories. The complete accessories and their new designs
guarantee the compressor has the best reliability, longest bearing life during heavy duty running and strict operating
conditions.
This Technical Manual contains information about lifting, dimensions, installation, operation, applications and basic
troubleshooting. It is strongly recommended that contents of this manual should be referred carefully prior to lifting,
installation, and commissioning of RC2 series compressor in order to prevent any accident or damage. Please contact
HANBELL or its local distributors/agents for more information or further assistance.
2. Specifications and description of design
2.1 Compressor nomenclature
RC 2 – x x x x x
Refrigerant Code A = R134a, R1234yf, R1234ze
B = R22, R407C, R404A, R507A
Compressor’s Displacement at 50Hz (m
3
/hr)
RC Series 2
nd
Generation

Technical Manual VERSION 2.0 -10-18-2018
4

 


2.2 Compressor specifications
a. RC2A
MODEL
COMPRESSOR MOTOR
Lubricant
charge
Oil
Heater
Hydrostatic
Pressure
Test
WEIGHT
Displacement
60 / 50Hz
Rated
Speed
60 / 50Hz
VI
Cap. Control (%) Type
Nominal
Hp Starting
Voltage (V)
Insulation Protection
m
3
/hr STEP STEPLESS 60Hz 50Hz 60Hz 50Hz L W Kg/cm2G kg
RC2100A
118/98
3550/2950
2.2
2.6
3.0
3.5
4.8
33, 66, 100 33~100
3 Phase, 2 Pole, Squirrel Cage, Induction Motor
23 19
Y△
△△△
PWS
DOL
208
220
230
380
440
460
480
575
380
400
415
Class F
PTC Protection
7
150/300 42
275
RC2140A
165/137 33, 66, 100 33~100 32 26 7 280
RC2180A
216/180 33, 66, 100 33~100 42 35 7 300
RC2200A
233/193 25, 50, 75, 100 25~100 45 37 8 420
RC2230A
277/230 35, 50, 75, 100 35~100 53 44 14 540
RC2260A
309/257 25, 50, 75, 100 25~100 59 49 14 545
RC2300A
352/293 25, 50, 75, 100 25~100 67 56 16 590
RC2310A
371/308 35, 50, 75, 100 35~100 71 59 16 575
RC2320A
384/320 25, 50, 75, 100 25~100 72 60 16 595
RC2340A
407/339 35, 50, 75, 100 35~100 77 64 16 600
RC2370A
440/366 35, 50, 75, 100 35~100 84 70 16 610
RC2410A
490/407 25, 50, 75, 100 25~100 93 78
380
440
460
480
575
16 730
RC2430A
509/423 25, 50, 75, 100 25~100 93 78 16 735
RC2470A
567/471 25, 50, 75, 100 25~100 108 90 18 800
RC2510A
611/508 35, 50, 75, 100 35~100 117 98 20 760
RC2550A
660/549 25, 50, 75, 100 25~100 126 105 23 820
RC2580A
702/583 35, 50, 75, 100 35~100 131 109 20 805
RC2620A
745/619 35, 50, 75, 100 35~100 137 114
Y△
△△△
DOL
23 850
RC2710A
858/713 35, 50, 75, 100 35~100 158 131 28 1099
RC2790A
952/791 30, 50, 75, 100 30~100 175 146 28 1140
RC2830A
993/825 30, 50, 75, 100 30~100 183 152 28 1150
RC2930A
1117/929 35, 50, 75, 100 35~100 212 176 28 1180
RC21020A
1223/1017 25, 50, 75, 100 25~100 227 189 40 1500
RC21130A
1350/1122 25, 50, 75, 100 25~100 248 206 40 1520
RC21270A
1521/1268 25, 50, 75, 100 25~100 286 238 53 2100
RC21530A
1847/1539 25, 50, 75, 100 25~100 331 275 53 2200
Nominal Horse Power:
All the above Nominal Hp’s are not equal to the maximum compressor Hp. Please refer to Hanbell selection software’s
output for rated current and Maximum Continuous CurrentM.C.C according to various operating conditions while
selecting sizes of contactor, cable, fuse and wire, etc

Technical Manual VERSION 2.0 -10-18-2018
5

 


b. RC2B
MODEL
COMPRESSOR MOTOR
Lubricant
charge
Oil
Hydrostatic
Pressure
Test
WEIGHT
Displacement
60 / 50Hz
Rated
Speed
VI
Cap. Control (%)
Type
Nominal Hp
Starting
Voltage (V)
Insulation Protection
Heater
m
3
/hr 60 / 50Hz STEP STEPLESS 60Hz 50Hz 60Hz 50Hz L W Kg/cm2G kg
RC2100B
118/98
3550/2950
2.2
2.6
3.0
3.5
4.8
33, 66, 100 33~100
3 Phase, 2 Pole, Squirrel Cage, Induction Motor
38 31
Y△
△△△
PWS
DOL
208
220
230
380
440
460
480
575
380
400
415
Class F
PTC Protection
7
150/300 42
280
RC2140B
165/137 33, 66, 100 33~100 50 41 7 285
RC2180B
216/180 33, 66, 100 33~100 66 55 7 335
RC2200B
233/193 25, 50, 75, 100 25~100 70 58 8 425
RC2230B
277/230 35, 50, 75, 100 35~100 81 67 14 555
RC2260B
309/257 25, 50, 75, 100 25~100 90 75 14 560
RC2300B
352/293 25, 50, 75, 100 25~100 107 89 16 600
RC2310B
371/308 35, 50, 75, 100 35~100 110 91 16 580
RC2320B
384/320 25, 50, 75, 100 25~100 114 94 16 600
RC2340B
407/339 35, 50, 75, 100 35~100 121 101 16 620
RC2370B
440/366 35, 50, 75, 100 35~100 130 108 16 640
RC2410B
490/407 25, 50, 75, 100 25~100 146 121
380
440
460
480
575
16 740
RC2470B
567/471 25, 50, 75, 100 25~100 170 141 18 810
RC2510B
611/508 35, 50, 75, 100 35~100 183 152 20 780
RC2550B
660/549 25, 50, 75, 100 25~100 195 162 23 850
RC2580B
702/583 35, 50, 75, 100 35~100 210 175 20 840
RC2620B
745/619 35, 50, 75, 100 35~100 220 183
Y△
△△△
DOL
23 880
RC2710B
858/713 35, 50, 75, 100 35~100 250 208 28 1099
RC2790B
952/791 30, 50, 75, 100 30~100 276 230 28 1180
RC2830B
993/825 30, 50, 75, 100 30~100 290 234 28 1215
RC2930B
1117/929 35, 50, 75, 100 35~100 334 278 28 1240
RC21020B
1223/1017 25, 50, 75, 100 25~100 357 297 40 1540
RC21130B
1350/1122 25, 50, 75, 100 25~100 393 327 40 1560
RC21270B
1521/1268 25, 50, 75, 100 25~100 471 392 53 2200
RC21530B
1847/1539 25, 50, 75, 100 25~100 534 443 53 2300
Nominal Horse Power:
All above Nominal Hp are not equal to the maximum compressors Hp; Please refer to Hanbell selection software’s
output for the rated current, Maximum Continuous CurrentM.C.C according to various working condition while
selecting the contactor, cable, fuse and wire, etc

Technical Manual VERSION 2.0 -10-18-2018
6

 


2.3 RC2 series compressor construction
RC2100, RC2140, RC2180 Construction

Figure 1
Item
Description
Ite
m
Description
Item
Description
Item
Description
1 Compressor casing 9 Oil separator cartridge 17 Discharge fixed ring 25 Refrigeration Lubricant
2 Motor casing 10 Piston 18 Disc spring 26 Suction flange
3 Oil separator 11 Piston spring 19 Bearing lock nut 27 Discharge flange
4 Motor rotor assembly 12 Piston rod 20 Male rotor 28 Cable box
5 Motor stator assembly 13 Bearing seat’s cover plate 21 Suction bearings 29 Power bolt
6 Motor rotor washer 14 Modulation slide valve 22 Oil filler cartridge 30 Motor cable cover plate
7 Motor rotor spacer ring 15 Slide valve key 23 Suction filter 31 Discharge check valve
8 Oil separator baffle 16 Discharge bearings 24 Oil heater

RC2200, RC2230, RC2260, RC2300, RC2310, RC2320, RC2340, RC2370, RC2410, RC2430, RC2470,
RC2510, RC2580 Construction
12
345 6
7
8910
11
13 12 14
15
16
17
18
19 20 21 22
23
24 25
26
27
28
29 3031
32 33
34

Figure 2
Item
Description
Item
Description
Item
Description
Item
Description
1 Compressor casing 10 Piston 19 Disc spring 28 Suction flange
2 Motor casing 11 Piston spring 20 Bearing lock nut 29 Discharge flange
3 Oil separator 12 Piston rod 21 Male rotor 30 Cable box
4 Motor rotor assembly 13 Bearing seat’s cover plate 22 Suction bearings 31 Power bolt
5 Motor stator assembly 14 Modulation solenoid valve 23 Suction bearings inner/outer spacer
ring 32 Thermostat terminals
6 Motor rotor washer 15 Modulation slide valve 24 Oil guiding ring 33 Motor cable cover plate
7 Motor rotor spacer ring 16 Slide valve key 25 Suction filter 34 Discharge check valve
8 Oil separator baffle 17 Discharge bearings 26 Oil heater
9 Oil separator cartridge 18 Discharge fixed ring 27 Refrigeration Lubricant

RC2550, RC2620 Construction
Figure 3
Item
Description
Item
Description
Item
Description
Item
Descript
ion
1 Compressor casing 10 Piston 19 Disc spring 28 Suction flange
2 Motor casing 11 Piston spring 20 Bearing lock nut 29 Discharge flange
3 Oil separator 12 Piston rod 21 Male rotor 30 Cable box
4 Motor rotor assembly 13 Bearing seat’s cover plate 22 Suction bearings 31 Power bolt
5 Motor stator assembly 14 Modulation solenoid valve 23 Suction bearings inner/outer spacer ring 32 Thermostat terminals
6 Motor rotor washer 15 Modulation slide valve 24 Oil guiding ring 33 Motor cable cover plate
7 Motor rotor spacer ring 16 Slide valve key 25 Suction filter 34 Discharge check valve
8 Oil separator baffle 17 Discharge bearings 26 Oil heater
9 Oil separator cartridge 18 Discharge fixed ring 27 Refrigeration Lubricant

Technical Manual VERSION 2.0 -10-18-2018
7

 


RC2710, RC2790, RC2830, RC2930 Construction
Figure 4
Item
Description
Item
Description
Item
Description
Item
Description
1 Compressor casing 11 Piston spring 21 Bearing lock nut 31 Suction flange
2 Motor casing 12 Piston rod 22 Male rotor 32 Discharge flange
3 Oil separator 13 Bearing seat cover plate 23 Suction bearings 33 Cable box
4 Motor rotor assembly 14 Modulation solenoid valve 24 Suction bearings inner/outer spacer ring 34 Power bolt
5 Motor stator assembly 15 Modulation slide valve 25 Oil guiding ring 35 Thermostat terminals
6 Motor rotor washer 16 Slide valve key 26 Oil level sight glass 36 Motor cable cover plate
7 Motor rotor spacer ring 17 Discharge bearings 27 Oil filler cartridge 37 Discharge check valve
8 Oil separator baffle 18 Discharge fixed ring 28 Suction filter
9 Oil separator cartridge 19 Disc spring 29 Oil heater
10 Piston 20 αBalance piston 30 Refrigeration Lubricant
RC21020, RC21130, RC21270, RC21530 Construction
Figure 5
Item Description Item Description
1 Compressor casing 20 Balance piston
2 Motor casing 21 Bearing slot nut
3 Oil separator 22 Male rotor
4 Motor rotor assembly 23 Suction bearings
5 Motor stator assembly 24 Suction bearings inner/outer spacer ring
6 Motor rotor washer 25 Oil guiding ring
7 Motor rotor spacer ring 26 Oil level sight glass
8 Oil separator Baffle 27 Oil filler cartridge
9 Oil separator cartridge 28 Suction filter
10 Piston 29 Oil heater
11 Piston spring 30 Refrigeration Lubricant
12 Piston rod 31 Suction flange
13 Bearing seat cover plate 32 Discharge flange
14 Modulation solenoid valve 33 Cable box
15 Modulation slide valve 34 Power bolt
16 Slide valve key 35 Thermostat terminals
17 Discharge bearings 36 Motor cable cover plate
18 Discharge fixed ring 37 Discharge check valve
19 Disc spring

Technical Manual VERSION 2.0 -10-18-2018
8

 


2.4 Design features
HANBELL screw compressors feature simple and robust construction by elimination of some components such as
pistons, piston rings, valve plates, oil pumps which are found in reciprocating compressors. Without these components,
screw compressors run with low noise level, minimized vibration, high reliability and durability. HANBELL screw
compressors are of twoshaft rotary displacement design with the latest and advanced 5:6 patented screw rotors.
Screw rotors are precisely installed with roller bearings, i.e. radial bearings at both suction and discharge ends as well
as angular contact ball bearings i.e. axial bearings at discharge end. A threephase, twopole squirrelcage induction
motor drives the compressor. The motor rotor is located on the shaft of the male screw rotor. Cooling of the motor is
achieved with suction refrigerant vapor.
Compressor technical features:
Full product range RC2 series compressor consists of 26 models with displacement ranging from 98/118 m3/hr up to
1539/1847 m3/hr (50/60Hz) compatible for different refrigerants and applications.
Multinational patents of highefficiency screw rotors The new 5:6 high efficiency screw rotor profile is patented in
Taiwan, UK, US, and China. This new largevolume, highefficiency rotor profile is designed especially for modern
refrigerant characteristics. Highefficiency screw rotors are accomplished by using precision CNC machining centers,
rotor milling machines, rotor grinding machines. Strict ISO 9001 process controlling and the application of precise
inspection equipments, such as ZEISS 3D coordinate measuring machines, ensure highefficiency, highquality, low
noise and lowvibration HANBELL RC2 series screw compressors.
High efficiency motor Premium grade lowloss core steel with special motor cooling slot and refrigerant guide vane
which pilot the cold suction refrigerant gas through the motor provides the highest operating efficiency possible no
matter how strict operating conditions are.
Long life bearings and high reliability The screw compressors utilize a combination of 10 axial and radial bearings
and α axial balance piston to ensure longer bearing life and higher compressor reliability.
Doublewalled rotor housing Double casing structure with high strength inner ribs has been designed to minimize
noise and ensure rigidity. The rotor housing is made of highstrength gray cast iron FC25 that is extremely stable,
therefore no expansion will occur even at highpressure condition. These casings are machined by computer aided
machining centers and inspected by precision measuring machines to enhance reliability.
Direct flangeon oil separator A vessel made of ductile material FC 500 specially designed to withstand high
pressure and provide the highest efficiency of oil separation. Simple oil management, threestaged oil
separator(models above RC21020), lowpressuredrop demister to ensure the minimum refrigerant dilution in the oil
and maintain high oil viscosity.
Precise capacity control The slide valve for capacity control is located in the compressor chamber. The slide valve is
actuated by injection of pressurized oil into the cylinder from the oil sump as well as bypass of oil through solenoid
valves in each oil lines with pressure differential.
Perceptive protection modules RC2 series screw compressors are equipped with PTC thermistors and motor
protection module which could monitor discharge and motor coil temperatures as well as phase sequence and phase
loss. Accessories also include oil level switch to monitor the level of oil, pressure differential switch, and pressure relief
valve for optional application.
Adaptable with additional cooling Liquid injection connection port located at the motor casing and in the
compression chamber, oil cooler connection port, and middle pressure economizer connection port for customer’s
desired application.
RC2 series compressors not only continue RC series compressors’ characteristics of high efficiency & reliability design
mentioned above, but are also designed with the following newly added advantages to meet customers’ needs more
adequately:
1. Design the fittest highefficiency motor for respective refrigerant, operation condition and electrical power.
2. Dual capacity control of steps or continuous create more accurate and reliable mechanism (Option)
3. Part load effective economizer application.
Detailed description of new design features are given in the following chapters.

Technical Manual VERSION 2.0 -10-18-2018
9

 





2.5 Compression process
(A) Suction and sealing:
At the beginning of the compression cycle, as the male rotor and female rotor unmesh, gas from suction port fills
the interlobe space (refer to the dark area below). Refrigerant at suction pressure continues to fill it, until the trailing
lobe crosses the suction area and the gas is trapped inside the interlobe space.
(B) Compression:
As the male rotor and female rotor meshes, the interlobe space moves towards to discharge end and its volume
decreases so that gas pressure increases consequently.
(C) Discharge:
Gas is discharged from the interlobe space when the leading lobe crosses the discharge port whose volume ratio is
designed differently for various applications.
Figure 6 Compression process
2.6 Capacity control system
The RC2 series screw compressors are equipped with either 3step/4step capacity control system or continuous (step
less) capacity control system. Both of the capacity control systems consist of a modulation slide valve, piston rod,
cylinder, piston and piston rings. The slide valve and the piston are connected by a piston rod. The principle of
operation is using the oil pressure to drive the piston in the cylinder. See Figure 7, the lubrication oil flows from the oil
sump through the oil filter cartridge and capillary then fills into the cylinder due to the positive oil pressure bigger than
the right side of spring force plus the high pressure gas. The positive pressure differential causes the piston to move
toward the right side in the cylinder. When the slide valve moves toward the right side, the effective compression
volume in the compression chamber increases. This means the displacement of refrigerant gas also increases, as a
result the refrigeration capacity also increases. However, when any of the step solenoid valve (for 3step/4step
capacity control system) is opened, the high pressure oil in the cylinder bypasses to the suction side, which causes the
piston and the slide valve to move toward the left side, and then some of the refrigerant gas bypasses from the
compression chamber back to the suction end. As a result, the refrigeration capacity decreases because of the
reduction of displacement of refrigerant gas flowing in the system.
The piston spring is used to push the piston back to its original position, i.e. minimum load position in order to reduce
the starting current for the next starting. If the compressor started at full load capacity it may result in over current start.
The capillary is used to maintain and restrain a suitable amount of oil flow into the cylinder. The modulation (stepless)
solenoid valves (SV1 and SV2) are controlled by a micro controller or temperature switch to modulate the piston
position smoothly with stable output of capacity.
If the oil filter cartridge, capillary, or modulation solenoid valves are not working well in the capacity control system, this
may result in the abnormality and ineffectiveness of the capacity control system. Before stopping the compressor,
HANBELL strongly recommends that the unloading solenoid valve of stepless control system or minimum
load solenoid valve of 3/4step control system should be kept opened for 60~90 seconds so that oil pressure
in the cylinder could be released. When starting the compressor again, it is in unloading position for light duty
start.
4steps capacity control Stepless capacity control
Figure 7 Capacity control system



(A) Suction and sealing
( B) Compression
(C) Discharge

Technical Manual VERSION 2.0 -10-18-2018
10

 


2.7 3 or 4step capacity control system
There are two (For RC2100, RC2140, RC2180) or three (for the rest 23 models) solenoid valves installed on the
compressor that control the compressor capacity from minimum capacity (please refer to chapter 2.2 for different
minimum capacity of each model) to full load (100%). There are two / three normally closed (NC) solenoid valves used
to control the various required capacity. For the compressor with 3step / 4step capacity control system, it is usual to
use the sequence of min.%66%100% / min.%50%75%100% to load the capacity of compressor and to use the
sequence of 100%66%min.%/100%75%50%min% to unload the capacity. If min% capacity is kept for a long time,
the problem of oil return, motor cooling, high discharge temperature need to be solved by adding accessories such as
oil level switch for monitoring the oil level, liquid injection devices for cooling motor coil and reducing discharge
temperature.(Figure 8). Min% is recommended for start and stop only, not for longtermed operation.
Figure 8 4step capacity control
Note: For 3step or 4step capacity control system, Hanbell equips normallyclosed (NC) solenoid valves as standard
accessory. If normallyopened (NO) solenoid valves are preferred instead, please specify it to Hanbell when placing
order.
a. min% capacity
When starting the compressor, SV25%/33% solenoid valve is
energized and the piston is in min% capacity position, so even the oil
coming from the oil sump is continuously injecting into the cylinder
through the capillary, the highpressured oil in the cylinder bypasses
directly into the suction port, so the piston is kept in its initial position.
※ It is strongly recommended to energize SV25%/33% solenoid valve for 1~3 minutes before starting the compressor
to ensure the slide valve is in min% position.
b. 50% capacity (omitted for RC2100, 140,180)
When SV50% solenoid valve is energized by the temperature
controller, the highpressure oil in the oil sump flows into the cylinder
due to the closing of min% valve that pushes the piston moving toward
the position where a hole at exactly 50% position drains the oil back to
the suction side then the piston is held on that position.
No. Component No. Component No. Component
1 Suction filter 7 Discharge bearings 13 Capillary
2 Gas in（low
pressure） 8 Oil separator baffle 14
Solenoid valve (min. %),
SV 25%/33%
3 Motor 9 Gas out（high pressure with
oil） 15
Solenoid valve (50% of full
load),SV50%
4 Oil filter
cartridge 10
Lubricant 16
Solenoid valve (75%/66% of full
load),SV75%/66%
5 Suction
bearings 11
Oil separator demister 17 Slide valve
6 Male rotor 12
Gas out(high pressure without
oil) * For RC2100, 140 & 180 the
SV 50%omitted
RC2100,140,180 capacity
control system SV33%(NC)
SV66%(NC)
100
%
of full load not energized
not energized
66% of full load not energized energized
33%（for start） energized not energized
RC2200~1530 capacity
control system SV25%(NC)
SV75%(NC) SV50%(NC)
100% full load not energized
not energized not energized
75% of full load not energized
energized not energized
50% of full load not energized
not energized energized
25%（for start） Energized not energized
not energized



SV 50% OFF
SV75% OFF
SV25%/33% ON
Figure 9 Min% Capacity
SV
50
% O
N
SV75% OFF
SV25%/33% OFF
Figure 10 50% Capacity

Technical Manual VERSION 2.0 -10-18-2018
11

 


c. 75%/66% capacity
When SV75%/66% solenoid valve is energized, SV50% solenoid valve
will be deenergized simultaneously, the high pressure oil will push the
piston toward the position where a hole at exactly 75%/66% position
drains the oil back to the suction side and the piston will be held on
that position.
d. 100% full load
When all of two/three modulation solenoid valves are deenergized,
the highpressured oil flows into the cylinder continuously to push the
piston toward the suction side gradually until the slide valve touches
the end of the compression chamber and the piston also reaches its
dead end entirely where no bypass of compression gas occurred.
Therefore, full load is achieved.
※ It is strongly recommend to start /stop compressors as per above illustration
Note: 1. Above T & T' should be determined by system designer’s experience and end user’s application.
2. Above t1 & t2 should be longer than 60 sec as recommended.
3. Capacity control must be kept at min% capacity for 1~3 min before start and for 60~90 sec before stop.
4. Start the compressor at min% and SV50% can be energized right after start.
2.8 Continuous (stepless) capacity control system
In continuous (stepless) capacity control system, solenoid valve SV2 (for loading) and solenoid valve SV1 (for
unloading) are equipped to inlet and outlet of piston cylinder respectively. These two solenoid valves are controlled by
chiller temperature controller or micro controller so refrigeration capacity can be modulated anywhere within min% ~
100%. Min% is recommended for start and stop only, not for longtermed operation.
It is very important for any controller to control loading and unloading in stable condition. For a smooth modulation,
HANBELL installs a capillary in loading oil line and an additional orifice valve in unloading oil line to avoid too fast
loading and unloading.
50%
Time
Start
Set point + 2T
Set point + T
Set point (target)
Set point – T' Stop
Chilled Water Temp .
Figure 13.
Start / stop sequence and temperature / modulation of single
compressor

50%(66%) 75%(66%) 100%
t1 t2
75%
(66%)
min%
1
~
3
min
min%
60~90 sec
SV50% OFF
(omitted for RC2100, 140 & 180)
SV75%/66% ON
SV25%/33% OFF
Figure 11 75%/66% Capacity
SV
50
% O
FF
SV
75
%
/66%
O
FF
SV 25%/33% OFF
Figure 12 100% (Full load)
Capacity

Technical Manual VERSION 2.0 -10-18-2018
12

 


Figure 14 Stepless capacity control
Note: 1. In continuous (stepless) capacity control system, Hanbell
installs two normally closed solenoid valves as standard
accessory. If it is necessary to be equipped with other type of
solenoid valves, please specify it when placing orders.
2. If customers prefer to remove unloading orifice or equip with
loading orifice for system application, please specify it when
placing orders
3. Normally opened solenoid valve SV2 (for loading) is an option.
Capacity Modulation
NC
SV2 (S
tandard)
NO
SV2 (O
ption)
a.
Loading
Standard: When NC SV2 is
energized but NC SV1 is not
energized, oil will be injected
continuously into piston cylinder
and will not bypass through NC
SV1 so compressor keeps
loading.
Option: When both NO SV2 and
NC SV1 are not energized, oil
will be injected continuously into
piston cylinder and will not
bypass through NC SV1 so
compressor keeps loading.
SV1 (N.C. / OFF)
LOADING
SV2
(N.C. / ON; Oil bypasses)
SV1 (N.C. / OFF)
LOADING
SV2
(N.O. / OFF; Oil bypasses)

b.
Unl
oading
Standard: When NC SV1 is
energized but NC SV2 is not
energized, oil inside piston
cylinder will bypass to suction
port through NC SV1.
Option: When both NO SV2 and
NC SV1 are energized, oil inside
piston cylinder will bypass to
suction port through NC SV1.
SV1
SV2
UNLOADING
(N.C. / ON; Oil bypasses)
(N.C. / OFF; Oil injecion stops)
SV1
(N.C. / ON; Oil bypasses)
SV2
(N.O. / ON; Oil injecion stops)
UNLOADING
No. Component No. Component No. Component
1 Suction filter 7 Discharge bearings 13 Capillary
2
Gas in（low
pressure） 8
Oil separator baffle 14 Solenoid valve, SV2
3 Motor 9
Gas out（high pressure
with oil） 15
Solenoid valve, SV1
4 Oil filter cartridge 10 Lubricant 16 Orifice
5 Suction bearings 11 Oil separator cartridge 17 Slide valve
6 Male rotor 12
Gas out (high pressure
without oil)
SV1(NC)
Standard
SV2(NC)
Standard
SV2(N0)
Option
Start energized not energized energized
Loading not energized energized not energized
Unloading energized not energized energized
Stable not energized not energized energized
NC./ON;
Oil injection
NO./OFF;
Oil injection

Technical Manual VERSION 2.0 -10-18-2018
13

 



c.
Stable/Holding
Standard: When both NC SV2
and NC SV1 are not energized,
piston can be held in
stable/holding position.
Option: When NO SV2 is
energized but NC SV1 is not
energized, piston can be held in
stable/holding position.
(N.C. / OFF;Oil bypasses)
(N.C. / OFF; Oil injection stops)
SV1
SV2
STABLE/HOLDING
(N.C. / OFF;Oil bypasses)
(N.O. / ON; Oil injection stops)
SV1
SV2
STABLE/HOLDING

Continuous /stepless capacity control principle
Note: 1. Above T. & T' should be determined by system designer’s experience and end user’s application.
2. Capacity control must be kept at unloading for 1~3 min before start and for 60~90 sec before stop.
Loading/unloading functions
Figure 15 Loading and unloading functions
t
1,
t
3
: Pulse time 1 ~ 1.5 seconds
t
2,
t
4
: Pause time 15 ~ 20 seconds
2.9 Dual capacity control system (optional)
Figure 16 Dual capacity control
No. Component No. Component No. Component
1 Suction filter 7 Discharge bearings 13 Capillary
2 Gas in（low pressure） 8 Oil separator baffle 14 Solenoid valve
3 Motor 9 Gas out（high pressure with oil） 15 Solenoid valve
4 Oil filter cartridge 10 Lubricant 16 Solenoid valve
5 Suction bearings 11 Oil separator cartridge 17 Slide valve
6 Male rotor 12 Gas out (high pressure without oil) 18 Solenoid valve
Set point (target)
Set point  T’

Set point + T
U U U U L L L S S S S S
1~3min
U
S
L
 Chilled water temperature
 Unloading
 Stable(holding)
 Loading
60~90sec
Chilled Water Temp .
Time
SV2 Open
SV2 Close
SV1 Close
SV1 Open
Loading (L)
Unloading (U)
Stable (S)
t
1
t
2
t
3
t
4
Start
Stop
Time

Hanbell can provide compressors with capacity as
shown in the figure 16, and its control logic is the same
as those shown in chapter 2.7 and 2.8.


Technical Manual VERSION 2.0 -10-18-2018
14

 


V
Pd
Pd'
V
Pd<Pd'
P
Pd, Pd'
V
Pd=Pd'
P
Pd>Pd'
Pd'
Pd
P

2.10 Compressor volume ratio (Vi)
The volume ratio (Vi) of the compressor can be defined as the ratio of suction volume to discharge volume in the
compressor. The smaller the concavity of slide valve in the discharge end, the larger the volume ratio. The volume ratio
directly affects the internal compression ratio (Pi). Low Vi corresponds to low Pi and high Vi corresponds to high Pi. In
the equation below, in order to prevent over or under compression, the system compression ratio (CR) should be equal
to compressor’s internal compression ratio (Pi). Please refer to PV (pressure – volume) diagram below to figure out
this relation.
CR = Pd/Ps
Pi = Vi
k
Vi = Vs/Vd
Where: CR: system compression ratio Pi: internal compression ratio
Vi: internal volume ratio Pd: system pressure (absolute pressure)
Pd’: discharge pressure (absolute pressure) Ps: suction pressure (absolute pressure)
Vs: suction volume Vd: discharge volume K: refrigerant specific heat ratio
2.11 Application limits
Application limits of the compressor vary significantly with the type of refrigerant used. The operating limits shown
below are based on saturated suction and discharge operating conditions, for continuous operation over extended
periods of time. It is important to operate within these limits to maintain proper compressor life. Operating at extra low
saturated suction temperature, may cause oil management and motor cooling problems, and operating at extra high
saturated condensing temperature will shorten the compressor life due to insufficient motor and compressor chamber
cooling.
a. Application limits of RC2100~RC2930 are described on the respective refrigerant charts.























Under
compression (CR > Pi)
Over compression (CR < Pi)
CR = Pi
Loss of work
Loss of work
1 2
3
4
Ps 1 2
3
4
Ps
Ps 1
2
3
4
Figure 17 PV Diagram



Technical Manual VERSION 2.0 -10-18-2018
15

 






















4.0
68
14 50 68
32
86
104
122
140
158
°F
20
30
40
50
60
70
20 10 10 20
0
°C
Evaporating Temperature
Condensing Temperature
additional cooling
25%
50%
75%
With Min
pressure valve
Motor A
Motor B
86
30

4.0
68
14 50 68
32
86
104
122
140
158
°F
20
30
40
50
60
70
20 10 10 20
0
°C
Evaporating Temperature
Condensing Temperature
additional cooling
25%
50%
75%
With Min
pressure valve
Motor A
86
30


b. Application limits of of RC21020~RC21530 are described on the respective refrigerant charts.









Technical Manual VERSION 2.0 -10-18-2018
16

 


4
68
14 50 68
32
86
104
122
140
158
°F
20
30
40
50
60
70
20 10 10 20
0
°C
Evaporating Temperature
Condensing Temperature
R1234yf Application Limits
25%
50%
75%
Motor A2
Motor B1
Motor A1
With Min
pressure valve

4
68
14 50 68
32
86
104
122
140
158
°F
20
30
40
50
60
70
20 10 10 20
0
°C
Evaporating Temperature
Condensing Temperature
R1234ze Application Limits
25%
50%
75%
Motor A2
Motor A1
With Min
pressure valve
Note:
1. When Hanbell screw compressor operate in partial or full load within limits, temperature of motor coil and discharge
will rise concurrently. In order to keep the safe running of compressor continuously , Hanbell recommend
application of the following additional cooling devices :
(1) Oil cooler or (2) Liquid injection to chamber or (3) Liquid injection to motor.
Please refer to Hanbell selection software for application of additional cooling system.
Hanbell recommends monitoring oil pressure differential and keep it 4


 over the suction pressure for
adequate seal, lubrication and capacity control by pressure differential switch passively or by additional oil pump or
minimum pressure valve actively. Especially under operation conditions with low condensing temperature and high
evaporating temperature like application in flooder watercooled chillers, highlow pressure difference tends to be
less than 4


 , installation of oil pump is recommended to ensure regular oil pressure.
Contact with Hanbell to verify potential operating conditions outside the limits shown.
2. If compressors run continuously at partial load below 50%, failure of motor coils might happen due to insufficient
cooling. Therefore, Hanbell emphasizes installation of liquid injection system to motor to make sure adequate
cooling of motor coils for safe running of compressors. According to EN12900, suction superheat is 10°k and liquid
subcooling is 0°k.



Technical Manual VERSION 2.0 -10-18-2018
17

 


3. The minimum discharge superheat is recommended to be kept 10°k higher than the condensing temperature
( normally discharge superheat is around 20°K for R134a and 30°K for R22, R407C) to avoid liquid filling back to
compressor and lubrication failure.
2.12 MCC and LRA

Refrigerant : R134a, R1234yf, R1234ze (Y-△)

50Hz 60Hz Unit: Ampere
380V 400V 415V 208V 220V 230V 380V 440V 460V 480V 575V
MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
MCC
LRA
(Y/△) MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
MCC
LRA
(Y/△)
RC2100A
53 58/175 50 60/ 180 49 55/165 115 127/380 109 117/350 104 120/360 63 70/210 55 58/175 52 60/180 50 55/165 42 48/145
RC2140A
73 77/230 70 80/240 67 73/220 160 175/525 151 153/460 145 160/480 88 97/290 76 77/230 72 80/240 69 73/220 58 63/190
RC2180A
97 103/310 92 108/325 89 98/295 213 230/690 202 198/595 193 207/620 117 125/375 101 103/310 96 108/325 92 98/295 77 85/255
RC2200A
103 103/310 98 108/325 94 98/295 226 230/690 214 198/595 204 207/620 124 125/375 107 103/310 102 108/325 98 98/295 82 85/255
RC2230A
124 160/480 117 167/500 113 155/465 270 360/1080 256 302/905 244 315/945 148 200/600 128 160/480 122 167/500 117 155/465 98 125/375
RC2260A
138 160/480 131 167/500 126 155/465 302 360/1080 286 302/905 273 315/945 165 200/600 143 160/480 137 167/500 131 155/465 109 125/375
RC2300A
155 200/600 147 208/625 142 180/540 340 462/1385 322 375/1125 308 392/1175 186 245/735 161 200/600 154 208/625 147 180/540 123 157/470
RC2310A
163 200/600 155 208/625 149 180/540 360 462/1385 341 375/1125 326 392/1175 197 245/735 170 200/600 163 208/625 156 180/540 130 157/470
RC2320A
167 200/600 158 208/625 153 180/540 366 462/1385 346 375/1125 331 392/1175 200 245/735 173 200/600 165 208/625 158 180/540 132 157/470
RC2340A
178 230/690 169 240/720 163 218/655 388 503/1510 367 460/1380 351 480/1440 213 270/810 184 230/690 176 240/720 168 218/655 140 182/545
RC2370A
194 230/690 185 240/720 178 218/655 426 503/1510 403 460/1380 386 480/1440 233 270/810 202 230/690 193 240/720 185 218/655 154 182/545
RC2410A
216 233/700 205 243/730 198 230/690
－ － － － － － 260
273/820 224 233/700 215 243/730 206 230/690 172 183/550
RC2430A
230 233/700 218 243/730 211 230/690
－ － － － － － 277
273/820 239 233/700 229 243/730 219 230/690 183 183/550
RC2470A
248 270/810 236 282/845 227 265/795
－ － － － － － 300
328/985 259 270/810 248 282/845 238 265/795 198 220/660
RC2510A
271 270/810 258 282/845 248 265/795
－ － － － － － 327
328/985 282 270/810 270 282/845 259 265/795 216 220/660
RC2550A
292 292/875 277 305/915 267 283/850
－ － － － － － 350
372/1115 302 292/875 289 305/915 277 283/850 231 250/750
RC2580A
304 292/875 288 305/915 278 283/850
－ － － － － － 365
372/1115 316 292/875 302 305/915 289 283/850 242 250/750
RC2620A
317 407/1220 301 428/1285 290 387/1160
－ － － － － － 381
482/1445 329 407/1220 315 428/1285 301 387/1160 252 323/970
RC2710A
365 447/1340 347 467/1400 334 432/1295
－ － － － － － 439
583/1750 379 447/1340 363 467/1400 348 432/1295 290 373/1120
RC2790A
404 477/1430 384 498/1495 370 457/1370
－ － － － － － 486
643/1930 420 477/1430 402 498/1495 385 457/1370 321 388/1165
RC2830A
422 522/1565 401 545/1635 387 495/1485
－ － － － － － 507
728/2185 438 522/1565 419 545/1635 402 495/1485 335 462/1385
RC2930A
490 663/1990 465 693/2080 448 617/1850
－ － － － － － 589
823/2470 509 663/1990 487 693/2080 466 617/1850 389 555/1665
RC21020A(A1)
360 583/1750 342 613/1840 330 537/1610 434 763/2290 374 583/1750 358 613/1840 343 537/1610 287 493/1480
RC21020A(A2)
536 753/2260 510 793/2380 491 690/2070 645 945/2835 557 753/2260 533 793/2380 510 690/2070 426 635/1905
RC21130A(A1)
395 583/1750 375 613/1840 362 537/1610 475 763/2290 410 583/1750 393 613/1840 376 537/1610 314 493/1480
RC21130A(A2)
588 753/2260 559 793/2380 538 690/2070 709 945/2835 612 753/2260 585 793/2380 561 690/2070 468 635/1905
RC21270A(A1)
457 753/2260 434 793/2380 419 690/2070 550 943/2830 475 753/2260 455 793/2380 436 690/2070 364 635/1905
RC21270A(A2)
682 888/2665 648 935/2805 624 782/2345 820 1168/3505 708 888/2665 677 935/2805 649 782/2345 542 717/2150
RC21530A(A1)
517 753/2260 491 793/2380 474 690/2070 623 943/2830 538 753/2260 514 793/2380 493 690/2070 411 635/1905
RC21530A(A2)
770 888/2665 732 935/2805 705 782/2345 927 1168/3505 800 888/2665 766 935/2805 734 782/2345 613 717/2150
Refrigerant : R134a, R1234yf, R1234ze (PWS)

50Hz 60Hz Unit: Ampere
380V 400V 415V 208V 220V 230V 380V 440V 460V 480V 575V
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
RC2100A
53 79/165 50 84/175 49 74/155 115 170/355 109 156/325 104 166/345 63 86/190 55 79//165 52 84/175 50 74/155 42 62/130
RC2140A
73 108/225 70 113/235 67 101/210 160 238/495 151 211/440 145 221/460 88 125/160 76 108/225 72 110/230 69 101/210 58 79/165
RC2180A
97 155/310 92 163/325 89 145/290 213 338/675 202 305/610 193 320/640 117 185/370 101 155/310 96 163/325 92 145/290 77 118/235
RC2200A
103 155/310 98 163/325 94 145/290 226 338/675 214 305/610 204 320/640 124 185/370 107 155/310 102 163/325 98 148/295 82 118/235
RC2230A
124 303/505 117 285/475 113 267/445 270 645/1075 256 618/1030 244 573/955 148 360/600 128 303/505 122 285/475 117 267/445 98 237/395
RC2260A
138 303/505 131 285/475 126 267/445 302 645/1075 286 618/1030 273 573/955 165 360/600 143 303/505 137 285/475 131 267/445 109 237/395
RC2300A
155 350/565 147 329/530 142 322/520 340 822/1325 322 763/1230 308 704/1135 186 428/690 161 350/565 154 329/530 147 322/520 123 273/440
RC2310A
163 350/565 155 329/530 149 322/520 360 822/1325 341 763/1230 326 704/1135 197 428/690 170 350/565 163 329/530 156 322/520 130 276/445
RC2320A
167 350/565 158 329/530 153 322/520 366 822/1325 346 763/1230 331 704/1135 200 428/690 173 350/565 165 329/530 158 322/520 132 276/445
RC2340A
178 462/710 169 423/650 163 410/630 388 943/1450 367 868/1335 351 920/1415 213 546/840 184 462/710 176 423/650 168 410/630 140 358/550
RC2370A
194 462/710 185 423/650 178 410/630 426 943/1450 403 868/1335 386 920/1415 233 546/840 202 462/710 193 423/650 185 410/630 154 358/550
RC2410A
216 475/730 205 497/765 198 429/660
－ － － － － － 260
553/850 224 475/730 215 497/765 206 429/660 172 374/575
RC2430A
230 475/730 218 497/765 211 429/660
－ － － － － － 277
553/850 239 475/730 229 497/765 219 429/660 183 374/575
RC2470A
248 571/840 236 598/880 227 513/755
－ － － － － － 300
677/995 259 571/840 248 598/880 238 513/755 198 439/645
RC2510A
271 571/840 258 598/880 248 513/755
－ － － － － － 327
677/995 282 571/840 270 598/880 259 513/755 216 439/645
RC2550A
292 615/905 277 646/950 267 596/875
－ － － － － － 350
779/1145 302 615/905 289 646/950 277 595/875 231 476/700
RC2580A
304 615/905 288 646/950 278 595/875
－ － － － － － 365
779/1145 316 615/905 302 646/950 289 595/875 242 476/700

Technical Manual VERSION 2.0 -10-18-2018
18

 


Refrigerant : R22, R407C, R404A, R507, R134a (Y-△)
 
50Hz 60Hz Unit: Ampere
380V 400V 415V 208V 220V 230V 380V 440V 460V 480V 575V
MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△) MCC
LRA
(Y/△)
RC2100B
69 77/230 65 80/240 63 73/220 151 175/525 142 153/460 136 160/480 82 97/290 71 77/230 68 80/240 65 73/220 54 63/190
RC2140B
91 103/310 87 108/325 84 98/295 199 230/690 188 198/595 180 207/620 109 125/375 94 103/310 90 108/325 86 98/295 72 85/255
RC2180B
121 155/465 115 162/485 110 148/445 263 362/1085 249 310/930 238 323/970 144 192/575 124 155/465 119 162/485 114 148/445 95 127/380
RC2200B
128 155/465 122 162/485 117 148/445 282 362/1085 266 310/930 255 323/970 154 192/575 133 155/465 127 162/485 122 148/445 102 127/380
RC2230B
153 230/690 146 240/720 140 218/655 336 503/1510 318 460/1380 304 480/1440 184 270/810 159 230/690 152 240/720 146 218/655 122 182/545
RC2260B
171 230/690 163 240/720 157 218/655 376 503/1510 355 460/1380 340 480/1440 206 270/810 178 230/690 170 240/720 163 218/655 136 182/545
RC2300B
193 260/780 183 272/815 177 263/790 424 653/1960 401 520/1560 384 543/1630 232 343/1030 200 260/780 192 272/815 184 263/790 153 223/670
RC2310B
203 260/780 193 272/815 186 263/790 446 653/1960 421 520/1560 403 543/1630 244 343/1030 211 260/780 201 272/815 193 263/790 161 223/670
RC2320B
207 260/780 196 272/815 189 263/790 456 653/1960 431 520/1560 413 543/1630 250 343/1030 216 260/780 206 272/815 198 263/790 165 223/670
RC2340B
220 345/1035 209 360/1080 201 313/940 483 720/2160 457 662/1985 437 692/2075 264 407/1220 228 345/1035 218 360/1080 209 313/940 175 272/815
RC2370B
241 345/1035 229 360/1080 221 313/940 529 720/2160 500 662/1985 478 692/2075 289 407/1220 250 345/1035 239 360/1080 229 313/940 191 272/815
RC2410B
268 292/875 254 305/915 245 283/850
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 323 372/1115 279 292/875 267 305/915 256 283/850 214 250/750
RC2470B
310 407/1220 294 428/1285 284 387/1160
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 372 482/1445 321 407/1220 307 428/1285 294 387/1160 246 323/970
RC2510B
336 443/1330 319 463/1390 308 417/1250
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 406 535/1605 350 443/1330 335 463/1390 321 417/1250 268 382/1145
RC2550B
355 443/1330 337 463/1390 325 417/1250
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 426 535/1605 368 443/1330 352 463/1390 338 417/1250 282 382/1145
RC2580B
377 443/1330 358 463/1390 345 417/1250
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 454 535/1605 392 443/1330 375 463/1390 359 417/1250 300 382/1145
RC2620B
393 503/1510 374 527/1580 360 468/1405
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 473 627/1880 409 503/1510 391 527/1580 375 468/1405 313 422/1265
RC2710B
453 663/1990 430 693/2080 415 617/1850
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 545 823/2470 471 663/1990 450 693/2080 432 617/1850 360 555/1665
RC2790B
498 743/2230 473 777/2330 456 682/2045
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 598 958/2875 516 743/2230 494 777/2330 473 682/2045 395 600/800
RC2830B
534 785/2355 508 827/2480 489 863/2590
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 643 1067/3200 555 785/2355 531 827/2480 509 863/2590 425 658/1975
RC2930B
620 875/2625 589 915/2745 567 955/2865
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 746 1247/3740 644 875/2625 616 915/2745 591 955/2865 493 765/2295
RC21020B(B1)
611 888/2665 580 935/2805 559 782/2345 735 1168/3505 635 888/2665 607 935/2805 582 782/2345 486 717/2150
RC21020B(B2)
684 1085/3255 650 1142/3425 626 920/2760 823 1290/3870 710 1085/3255 680 1142/3425 651 920/2760 544 868/2605
RC21130B(B1)
671 888/2665 637 935/2805 614 782/2345 806 1168/3505 697 888/2665 666 935/2805 638 782/2345 533 717/2150
RC21130B(B2)
766 1085/3255 728 1142/3425 702 920/2760 922 1290/3870 796 1085/3255 762 1142/3425 730 920/2760 609 868/2605
RC21270B(B1)
777 1085/3255 738 1142/3425 711 920/2760 934 1290/3870 807 1085/3255 772 1142/3425 740 920/2760 617 868/2605
RC21270B(B2)
864 1338/4015 820 1160/3480 791 1213/3640 1038 1573/4720 896 1338/4015 857 1160/3480 821 1213/3640 686 1292/3875
RC21530B(B1)
878 1085/3255 834 1142/3425 804 920/2760 1056 1290/3870 912 1085/3255 873 1142/3425 836 920/2760 698 868/2605
RC21530B(B2)
996 1393/4180 946 1195/3585 912 1263/3790 1199 1633/4900 1035 1393/4180 990 1195/3585 949 1263/3790 792 957/2870
Refrigerant : R22, R407C, R404A, R507, R134a (PWS)
 
50Hz 60Hz Unit: Ampere
380V 400V 415V 208V 220V 230V 380V 440V 460V 480V 575V
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
MCC
LRA
(△/△△)
RC2100B 69 108/225 65 113/235 63 101/210 151 238/495 142 211/440 136 221/460 82 125/260 71 108/225 68 113/235 65 101/210 54 82/170
RC2140B
91 155/310 87 163/325 84 145/290 199 338/675 188 305/610 180 320/640 109 185/370 94 155/310 90 163/325 86 145/290 72 118/235
RC2180B 121 225/425 115 239/450 110 207/390 263 480/905 249 444/840 238 466/880 144 254/480 124 225/425 119 239/450 114 207/390 95 172/325
RC2200B
128 225/425 122 239/450 117 207/390 282 480/905 266 445/840 255 466/880 154 254/480 133 225/425 127 239/450 122 207/390 102 172/325
RC2230B 153 350/565 146 329/530 140 322/520 336 822/1325 318 763/1230 304 704/1135 184 428/690 159 350/565 152 329/530 146 322/520 122 273/440
RC2260B
171 462/710 163 423/650 157 410/630 376 943/1450 355 868/1335 340 920/1415 206 546/840 178 462/710 170 423/650 163 410/630 136 358/550
RC2300B 193 507/780 183 497/765 177 481/740 424 1260/1940 401 1121/1725 384 1004/1545 232 614/945 200 507/780 192 497/765 184 481/740 153 403/620
RC2310B
203 507/780 193 497/765 186 481/740 446 1261/1940 421 1121/1725 403 1004/1545 244 614/945 211 507/780 201 497/765 193 481/740 161 403/620
RC2320B 207 507/780 196 497/765 189 481/740 456 1261/1940 431 1121/1725 413 1004/1545 250 614/945 216 507/780 206 497/765 198 481/740 165 403/620
RC2340B
220 663/1020 209 640/985 201 608/935 483 1628/2505 457 1342/2065 437 1495/2300 264 777/1195 228 663/1020 218 640/985 209 608/935 175 527/810
RC2370B 241 663/1020 229 640/985 221 608/935 529 1628/2505 500 1342/2065 478 1495/2300 289 777/1195 250 663/1020 239 640/985 229 608/935 191 527/810
RC2410B
268 615/905 254 646/950 245 595/875
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 323 779/1145 279 615/905 267 646/950 256 595/875 214 476/700
RC2470B 310 870/1280 294 915/1345 284 826/1215
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 372 1030/1515 321 870/1280 307 915/1345 294 826/1215 246 690/1015
RC2510B
336 952/1400 319 996/1465 308 891/1310
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 406 1142/1680 350 952/1400 335 996/1465 321 891/1310 268 816/1200
RC2550B 336 952/1400 319 996/1465 308 891/1310
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 406 1142/1680 350 952/1400 335 996/1465 321 891/1310 268 816/1200
RC2580B
377 952/1400 358 996/1465 345 891/1310
－
－－－
－
－－－ － －－－
－
－－－ － －－－
－
－－－ 454 1142/1680 392 952/1400 375 996/1465 359 891/1310 300 816/1200

Technical Manual VERSION 2.0 -10-18-2018
19

 


3. Lubricants
The main functions of lubrication oil in screw compressors are lubrication, internal sealing, cooling and capacity control.
Positive oil pressure in the cylinder pushes the piston together with the slide valve that is connected by a piston rod to
move forward and backward in the compression chamber. The design of positive pressure differential lubrication
system makes RC2 series normally omit an extra oil pump which is necessary for reciprocating compressors. However,
in some special applications, it is still necessary to install an extra oil pump to screw compressors for safety.
Bearings used in RC2 series compressors require a small and steady quantity of oil for lubrication. Oil injection into the
compression chamber creates a film of oil for sealing in the compression housing to increase efficiency and also can
dissipate part of compression heat. In order to separate oil from refrigerant gas, an oil separator is required to ensure
the least amount of oil carried into the system.
Please pay more attention to the oil temperature, which is crucial to compressor bearings’ life. Oil is with much lower
viscosity at high temperatures. Too low viscosity of oil will result in poor lubrication and heat dissipation in the
compressor. Viscosity is recommended to keep over 10mm
2
/s at any temperatures for oil. Oil temperature in the oil
sump should be kept above the saturated condensing temperature to prevent refrigerant migration into lubrication
system. Oil has a higher viscosity in low ambient temperature circumstances. When viscosity is too high, slow flow
speed of oil into the cylinder may result in too slow loading of the compressor. To solve this problem, use of oil heaters
can warm up oil before starting.
If the compressor operates under critical operating conditions, an extra oil cooler is required – please refer to Hanbell
selection software for the required capacity and oil flow of the extra oil cooler. Highviscosity oil is recommended to
apply in high operating conditions because high discharge temperature will make viscosity of oil lower. Oil return from
the evaporator may be insufficient in refrigeration systems, flooded chillersetc., in which it’s difficult for oil to be
carried back and it may cause oil loss in the compressor. If the system encounters the oil return problem then an extra
2
nd
oil separator is recommended to be installed between the compressor discharge tube and condenser.
Each of HANBELL RC2230 ~ RC2930 compressors is equipped with two oil sight glasses as a standard (the second
sight glass is optional for the models RC2100 ~ RC2200), one is the highlevel sight glass, and the other is the low
level sight glass (RC2230~RC2510, RC2580 and RC21020~RC21530) or internal oil line sight glass (RC2550 &
RC2620~RC2930). The function of internal oil line sight glass is to monitor lubricant flow to capacity control system
and bearings. While reverse running, it is unable to see the oil flow via sight glass. The normal oil level in the
compressor oil sump should be maintained above the top of the lowlevel sight glass and in the middle level of high
level sight glass when compressor is running. It is strongly recommended to install the oil level switch (optional
accessory) to prevent the failure results from lose of oil.
3.1 Lubricants table
Applicable oil types (R22)
SPECIFICATION UNITS HBR B10
HBR A02 HBR A04 HBR B09 HBR B02 HBR B01
COLOR, ASTM 1.5 L1.0 L1.0
−
−
−
SPECIFIC GRAVITY 0.883 0.914 0.925 0.95 1.01 1.05
VISCOSITY
40℃ mm
2
/s (cSt)
56.0 54.5 96.5 175 168 298
100℃ 7.0 6.07 8.12 16.5 20.2 32.0
FLASH POINT ℃ 220 188 198 265 290 271
POUR POINT ℃ 40 35 25 30 43 35
T.A.N MgKOH/g 0.01 0.00 0.01
−
−
−
COPPER STRIP 100 /3hr℃ 1a 1a 1a
−
−
−
MOISTURE ppm 15 20 20
−
−
−
FLOC POINT ℃ 75 45 35
−
−
−
DIELETRIC STRENGTH
(2.5mm) KV 75 50 50 46.6 − −
Applicable oil types (R134a, R404A, R407C)
SPECIFICATION UNITS HBR B05 HBR B08 HBR B09 HBR B04
COLOR, ASTM
−
−
−
−
SPECIFIC GRAVITY 0.945 0.94 0.95 0.95
VISCOSITY 40℃
mm
2
/s (cSt)
64 131 175 215.9
100℃ 8.9 14.53 16.5 20.8
FLASH POINT ℃ 266 254 265 271
POUR POINT ℃ 43 36.5 30 25
T.A.N mg KOH/g
−
−
−
−
COPPER STRIP
100 /3hr℃ − − − −
MOISTURE ppm
−
−
−
−
FLOC POINT ℃
−
−
−
−
DIELETRIC STRENGTH
2.5mm KV − − 46.6 −
Note: For other applicable oil types (HFO Refrigerant), please consult HANBELL firstly for approval.

Technical Manual VERSION 2.0 -10-18-2018
20

 


3.2 Precautions of changing oil
1. Use only qualified oil and do not mix different brands of oil together. Selection of oil should match characteristics of
the refrigerant used. Some types of synthetic oil are incompatible with mineral oil. Oil remained in the compressor
should be totally cleaned up in the system before charging different brands of oil. Charge the compressor with oil for
the first start and then change it into new oil again to ensure that there’s no mix at all.
2. When using polyester oil for chiller systems, please make sure not to expose oil to the atmosphere for prevention
of change in its property. Therefore, it is necessary to vacuum the system completely when installing the compressor.
3. In order to ensure no moisture inside the system, it is suggested to clean the system by charging it with dry Nitrogen
and then vacuum it repeatedly as long as possible.
4. It is a must to change the oil in motor burned out case, because acid debris may still remain inside the system.
Please follow the procedures mentioned above to change oil in the system. Check acidity of oil after 72 hours of
operation and then change it again until acidity of oil becomes normal.
5. Please contact Hanbell local distributors/agents for selection of oil.
3.3 Oil change
1. Change oil periodically: Check lubrication oil every 10,000 hours of continuous running. For the first operation of the
compressor, it is recommended to change the oil and clean the external oil filter after running 2,000 hours. Check the
system whether clean or not and then change oil every 20,000 hours or after 3 years’ continuous running while the
system operates in good condition.
2. Avoid clogging in oil filter with debris or swarf which may cause failure in bearings. An optional oil pressure
differential switch is recommended to be installed. The switch will trip when the oil pressure differential between the
primary and secondary sides reaches the critical point and then the compressor will automatically shut down to prevent
the bearings from damage due to oil loss.