Frick SGC/SGX Rotary Screw Compressor Installation Operation and Maintenance Guide

Type
Installation Operation and Maintenance Guide
This manual contains installation, operation, and maintenance instructions. Read
thoroughly before beginning installation. Failure to follow these instructions may
result in personal injury or death, damage to the unit, or incorrect operation.
SGC/SGX Rotary Screw Compressor IOM
(MK2)
Models: SGC 1913-2824, SGCB/H 3511-3519, Original SGXB
3519-3524, SGXH 3519, and 4013-4021
Form: 070.650-IOM (JUL 2019)
Installation - Operation - Maintenance
File: Service Manual - Section 070
Replaces: 070.650-IOM (AUG 2015)
Dist: 3, 3a, 3b, 3c
Revised: February 21st, 2022
Check www.FrickCold.com for the latest version of this publication.
2 SGC/SGX Rotary Screw Compressor IOM (MK2)
Contents
ContentsSafety precaution definitions..........................................................................................................................5
General Information........................................................................................................................................ 6
Preface.................................................................................................................................................... 6
Design Limitations.................................................................................................................................6
Job Inspection.........................................................................................................................................7
Standard Bare Compressor.................................................................................................................. 7
Transit Damage Claims......................................................................................................................... 7
Compressor Identification....................................................................................................................7
Long-term Storage.............................................................................................................................. 10
Compressor and packaged equipment storage log..............................................................................10
Preparing Compressor for Storage..........................................................................................................11
Maintaining Compressor in Storage........................................................................................................11
Description........................................................................................................................................... 12
SGC/SGX Compressors.............................................................................................................................. 12
Compressor Lubrication System.............................................................................................................. 13
Oil Pump......................................................................................................................................................13
Construction Details............................................................................................................................13
Housing....................................................................................................................................................... 13
Rotors.......................................................................................................................................................... 14
Bearings...................................................................................................................................................... 14
Shaft seal.....................................................................................................................................................14
Stepless capacity control...........................................................................................................................14
Volumizer variable volume ratio control.................................................................................................14
Motor mount.............................................................................................................................................. 14
Installation...................................................................................................................................................... 16
Design Limits........................................................................................................................................16
Outline Dimensions.............................................................................................................................16
Holding Charge and Storage..............................................................................................................41
Rigging and Handling......................................................................................................................... 41
Lifting instructions..................................................................................................................................... 42
Foundation........................................................................................................................................... 44
Customer Connections........................................................................................................................45
Oil System Requirements................................................................................................................... 45
Oil selection.................................................................................................................................................46
Oil pressure.................................................................................................................................................46
Balance piston oil requirements and regulations..................................................................................46
Oil Filters............................................................................................................................................... 51
Oil Heaters............................................................................................................................................51
Compressor Oil.................................................................................................................................... 51
Oil Pump............................................................................................................................................... 51
Compressor.......................................................................................................................................... 51
SGC/SGX Rotary Screw Compressor IOM (MK2) 3
Motor Mounting Using Tunnel...........................................................................................................52
Motor Mounting - Foot Mounted Only.................................................................................................... 52
Compressor/motor coupling requirments............................................................................................. 52
Coupling Alignment Requirements - Foot Mounted Only.....................................................................53
Dehydration/Evacuation Test.............................................................................................................53
Electrical Installation........................................................................................................................... 53
Slide stop transmitter................................................................................................................................ 53
Capacity slide valve transmitter............................................................................................................... 54
Directional control valves..........................................................................................................................55
Compressor Hydraulic System...........................................................................................................55
Volumizer Volume Ratio Control........................................................................................................58
Operation........................................................................................................................................................ 59
Operation and Start-Up Instructions................................................................................................ 59
Low Ambient Temperature Operation..............................................................................................59
Initial Start-Up......................................................................................................................................59
Initial start-up procedure..........................................................................................................................59
Normal start-up procedure.......................................................................................................................60
Maintenance................................................................................................................................................... 61
General Information............................................................................................................................61
Normal Maintenance Operations......................................................................................................61
General Maintenance..........................................................................................................................62
Changing Oil.........................................................................................................................................62
Recommended Maintenance Program.............................................................................................63
Maintenance schedule........................................................................................................................ 64
Vibration Analysis................................................................................................................................ 65
Oil Quality and Analysis...................................................................................................................... 65
Operating Log.............................................................................................................................................66
Troubleshooting Guide....................................................................................................................... 66
Abnormal Operation Analysis and Correction........................................................................................66
Capacity linear transmitter replacement - slide valve........................................................................... 68
Volumizer® transmitter replacement - slide stop................................................................................. 69
Bare Compressor Replacement......................................................................................................... 70
Shutdown Due to Improper Oil Pressure - High Stage and Booster.............................................70
Forms............................................................................................................................................................... 71
Rotary Screw Compressor Operating Log Sheet............................................................................. 71
Read this First: Compressor Prestart Checklist................................................................................72
Mechanical Checks.....................................................................................................................................72
Drive Train Alignment......................................................................................................................... 73
Operating Log Sheet........................................................................................................................... 74
Vibration Data Sheet........................................................................................................................... 75
Revisions..........................................................................................................................................................76
SGC/SGX Rotary Screw Compressor IOM (MK2)4
Safety precaution definitions
This manual contains rigging, assembly, start-up, and maintenance instructions. Read
thoroughly before beginning installation. Failure to follow these instructions result in
personal injury or death, damage to the unit, or improper operation.
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation or practice which, if not avoided, will result in death or
serious injury.
CAUTION
Indicates a potentially hazardous situation or practice which, if not avoided, will result in damage to
equipment and/or minor injury.
NOTICE
Indicates an operating procedure, practice, etc., or portion thereof which is essential to highlight.
The information contained in this document is subject to change without notice.
5SGC/SGX Rotary Screw Compressor IOM (MK2)
General Information
Preface
This manual describes the installation, operation, and maintenance procedures of SGC, SGCB/H,
and SGXB/H Rotary Screw Compressors (referred to in this document as SGC or SGX). The term SGC
refers to the 1913, 1918, 2313, 2317, 2321, 2813, 2817, 2821, and 2824 SGC units, as well as the 3511,
3515, and 3519 SGCB and SGCH units. The term SGX refers to the 3519, 4013, 4018, and 4021 SGXB
and SGXH units, as well as the 3524 SGXB unit.
NOTICE
FRICK screw compressor repair must only be done by skilled mechanics who have completed training at
FRICK screw compressor school.
It is most important that these compressors be correctly applied to an adequately controlled
refrigerant or gas system. Consult your authorized Johnson Controls-FRICK representative for
expert guidance in this determination.
Proper performance and continued satisfaction with these units is dependent upon:
• Correct Installation
• Proper Operation
• Regular, Systematic Maintenance
• Proper Package and System Engineering
To ensure correct installation and application, the equipment must be correctly selected and
connected to a correctly designed and installed system. The engineering plans, piping layouts, for
example, must be detailed in accordance with the best practices and local codes, such as those
outlined in ASHRAE and EN codes.
A screw compressor is a vapor pump. To ensure that working fluid in the liquid state is not being
ingested, perform the following steps:
• Select controls carefully. Make sure they are in good operating condition.
• Size piping and arrange traps correctly, if they are necessary.
• Check that the suction line has an accumulator or slugging protection.
• Know the load surges and make provisions for control.
• Check that operating cycles and stand still periods are reasonable
• Size high side components within system and compressor design limits.
It is necessary to keep the discharge temperature high enough to prevent condensation of any
moisture in the compressor and oil separator
Design Limitations
SGC/SGX compressors are designed for operation within the pressure and temperature limits
specified by Johnson Controls-FRICK and the Johnson Controls-FRICK selection software CoolWareâ„¢.
They are primarily used for compressing refrigerant gas and most hydrocarbon gasses.
If your application is for sour gas, there are special requirements to protect the compressor.
Contact Johnson Controls-FRICK Compressor Engineering for application details.
SGC/SGX Rotary Screw Compressor IOM (MK2)6
Job Inspection
Immediately upon delivery examine all crates, boxes, and exposed compressor and component
surfaces for damage. Unpack all items and check against shipping lists for any discrepancy.
Examine all items for damage in transit.
Standard Bare Compressor
Items not included with bare compressor that are available as sales order options:
• Motor mount
• Solenoid valve block
• Solenoid valves
• Tank drain tubing (T connection)
• Oil feed line (P connection)
• Connection fittings
• Coupling
Transit Damage Claims
All claims must be made by consignee. This is an ICC requirement. Request immediate inspection
by the agent of the carrier and be sure the proper claim forms are executed. Report damage or
shortage claims immediately to Johnson Controls-FRICK Sales Administration Department, in
Waynesboro, PA.
Compressor Identification
Each compressor has an identification data plate, containing compressor model and serial number,
mounted on the compressor body.
NOTICE
When inquiring about the compressor or unit, or ordering repair parts, provide the model and serial
numbers from the data plate. See Figure 1.
7SGC/SGX Rotary Screw Compressor IOM (MK2)
Figure 1: Identification data plate
Rotary screw compressor serial numbers identify the factory that the compressor was
manufactured in and its build date. They are defined by the following information:
Example: 1024 0 A 9 0000015 Z
Plant Decade Month Year Global
Seq no.
Additional
Remarks
1024 0 A 9 0000015 Z
Month:
• A = JAN, B = FEB, C = MAR, D = APR, E = MAY, F = JUN,
• G = JUL, H = AUG, K = SEP, L = OCT, M = NOV, N = DEC
Additional Remarks:
• R = Remanufactured
• R1 = Rebuild
• R2 = Rebuild Plus
• Z = Deviation from base configuration.
The name plates in Figure 2 show which refrigerants are compatible with the compressor as
manufactured.
SGC/SGX Rotary Screw Compressor IOM (MK2)8
Figure 2: Refrigerant nameplates
Table 1: Geometrical swept volume
Rotor
diameter
Rotor Max
speed
Geometrical swept
volume drive shaft
end
Displacement
3550 rpm
2950 rpmCompressor
model
mm L/D rpm ft³/ rev m³/rev cfm m³/h
SGC 1913 1.35 4,500 0.16653 0.004713 591 834
SGC 1918
193
1.8 4,500 0.22204 0.006284 788 1,112
SGC 2313 1.35 4,500 0.29301 0.008292 1,040 1,468
SGC 2317 1.7 4,500 0.36897 0.010442 1,310 1,848
SGC 2321
233
2.1 4,500 0.45580 0.012899 1,618 2,283
SGC 2813 1.35 4,200 0.52501 0.014858 1,864 2,630
SGC 2817 1.7 4,200 0.66115 0.018711 2,347 3,312
SGC 2821 2.1 4,200 0.79546 0.022512 2,824 3,985
SGC 2824
283
2.4 4,200 0.89858 0.025430 3,190 4,501
SGCH/B
3511
1 .1 3,600 0.82248 0.023276 2,920 4,120
SGCH/B
3515
1.5 3,600 1.12154 0.031739 3,981 5,618
SGCH/B
3519
1.9 3,600 1.42748 0.040398 5,068 7,150
SGXB 3519 1.9 3,600 1.42748 0.040398 5,068 7,150
SGXB 3524
355
2.4 3,600 1.80328 0.051033 6,402 9,033
SGXH 3519 355 1.9 3,600 1.42748 0.040398 5,068 7,150
SGXH 4013 1.3 3,600 1.41180 0.03998 5,012 7,076
SGXH 4018 1.8 3,600 1.95481 0.05535 6,940 9,798
SGXH 4021
408
2.1 3,600 2.31319 0.06550 8,212 11,594
9SGC/SGX Rotary Screw Compressor IOM (MK2)
Long-term Storage
Long-term storage (6 months to 5 years) provisions are required, regardless of storage
environment, if start-up and useful operation does not occur within six (6) months of equipment
shipment. Special provisions may be required for storage of less than six (6) months if the storage
area is subject to unusual environmental conditions such as high humidity, large changes in
temperature, or dusty atmosphere.
The standard Johnson Controls-FRICK Warranty for aSGC/SGX screw compressor covers 12 months
from start-up or 18 months from shipment, whichever comes first. Make arrangements with the
local Johnson Controls-FRICK service organization (arranged through factory service) regarding
surveillance and maintenance during the storage period. It is the customer’s responsibility to
submit a monthly report showing the condition of the unit and noting any discrepancies to the
guidelines listed herein. Failure to comply with this Long Term Storage recommendation may void
the warranty.
Long term storage of equipment may lead to the deterioration of components over the period
of time. Synthetic components in the compressor may deteriorate over time even if they are kept
flooded with oil. A warm and dry environment is essential to minimize environmental and corrosion
damage. Long term storage of the affected equipment at a customer’s site may involve additional
requirements.
Follow the guidelines in Preparing Compressor for Storage and Maintaining Compressor in Storage to
maintain the screw compressor warranty.
Compressor and packaged equipment storage log
Table 2: Compressor and packaged equipment storage log
Model Serial
no.
Compressor*
shaft rotation
1 1/2 Turn
Rotor
housing
charge
Charge
added
Visual
inspection
per QAI-3
Charge Checked
by
Date
*Compressor, Motor, Oil Pump, and Refrigerant Pump
SGC/SGX Rotary Screw Compressor IOM (MK2)10
Preparing Compressor for Storage
If it is necessary to store the compressor for use at a later date, peform the following steps:
1. Evacuate the compressor to remove moisture.
2. Connect the evacuation lines to port SM1.
3. Connect the evacuation lines to the three Schrader access valves provided with the
compressor. One valve is connected to the compressor suction and the other two valves are
located at the block on the cylinder.
4. Break vacuum with dry nitrogen and bring pressure to 0 psig.
5. Pump oil into the SM1. Johnson Controls-FRICK recommends break-in oil P/N 111Q0831809 for
storage purposes.
6. After the compressor is oil charged, pressurize to 15 psig with nitrogen.
The amounts of oil needed for each compressor are:
193 mm: 12 gal 355 mm: 35 gal
233 mm: 15 gal 408 mm: 50 gal
283 mm: 25 gal
Maintaining Compressor in Storage
• Ensure that the 5 psig to 15 psig nitrogen charge is maintained. 15 psig is preferred.
• Rotate the male rotor shaft every two weeks. Mark the shaft to ensure the rotor does not
return to the original position.
• Store the compressor inside a dry building environment.
• Grease the male rotor shaft to prevent rust.
• Record all information in a Compressor Long Term Storage Log.
What to do next:
Contact Johnson Controls-Frick Service with any questions regarding long-term storage.
11SGC/SGX Rotary Screw Compressor IOM (MK2)
Description
SGC/SGX Compressors
FRICK SGC/SGX rotary screw compressors utilize mating asymmetrical profile helical rotors to
provide a continuous flow of vapor, designed for both high-pressure and low-pressure applications.
The compressors incorporate the following features:
• High-capacity roller bearings to carry radial loads at both the inlet and outlet ends of the
compressor.
• Heavy-duty, four-point contact ball or angular-contact bearings are mounted at the discharge
end of the compressor to carry axial loads.
• Balance pistons, located in the inlet end of the compressor, reduce axial loads on the male
axial bearings to increase bearing life.
• Moveable slide valve to provide fully modulating capacity control from 100% to approximately
10% (2824, 3519, and 4021 - to 15%; 3524 - to 20%) of full load capacity.
• Volumizer® volume ratio control to allow infinitely variable volume ratio (Vi) from 2.2 to 5.0 for
most SGC models during compressor operation:
- 2824, Vi = 2.0 to 4.1
- 3524, Vi = 2.4 to 4.5
- 4021, Vi = 2.2 to 4.3
• A hydraulic cylinder to operate the slide stop and slide valve.
• For SGC/SGX models up to 355, housings constructed of class 40 grey cast iron have a design
working pressure (DWP) of 400 psig. Those contrusted of ductile iron or steel are rated for
a DWP of 600 psig. For 408 compressors, 4013 models are rated for 700 psig, while 4018 and
4021 models are rated for 600 psig.
• Bearing and control oil vents to closed thread in the compressor instead of suction pressure to
avoid performance penalties from superheating and displacing suction gas.
• Shaft seal housing is designed to maintain operating pressure on seal well below discharge
pressure for increased seal life.
• Oil injected into the rotors to maintain good volumetric and adiabatic efficiency even at very
high compression ratios.
• The shaft rotation is clockwise when facing the compressor and is suitable for all types of
drives.
WARNING
Compressor rotation is clockwise when facing the compressor drive shaft. Never operate the
compressor in reverse rotation as this results in bearing damage.
• Suction and discharge flanges are ANSI B16.1 Class 300 for all except the SGX 4013 model. SGX
4013 has Class 400 suction and discharge flanges.
• Integral suction strainers are provided for all models except the SGX 35XX and 408 series.
These models must be fitted with a suitable strainer, #60 mesh x .0065 in. diameter stainless
steel wire or better, to prevent damage to the compressor from particles entering the suction
area.
SGC/SGX Rotary Screw Compressor IOM (MK2)12
Compressor Lubrication System
The lubrication system on SGC/SGX screw compressor units performs several functions:
• Provides lubrication to bearings and seal.
• Provides a cushion between the rotors to minimize noise and vibrations.
• Helps keep the compressor cool and preventsoverheating.
• Provides an oil supply to hydraulically actuate the slide valve and slide stop.
• Provides oil pressure to the balance piston to help increase bearing life. Some applications/
operating conditions require a regulated pressure to the balance piston.
• Provides an oil seal between the rotors to prevent rotor contact or gas bypassing.
• On SGX models, provides oil supply to the squeeze film dampers.
Oil Pump
A demand oil pump is required for low differential pressure applications. CoolWareâ„¢ provides a
warning when the oil differential pressure is too low. Oil being supplied to the compressor from the
oil separator is at system discharge pressure. Within the compressor, oil porting to all parts of the
compressor is vented back to a location in the compressor’s body that is at a pressure lower than
compressor discharge pressure. All oil entering the compressor is moved by the compressor rotors
out the compressor outlet and back to the system oil separator
All SGX compressors are equipped with squeeze film dampers (SFD) in the rotor blocking
diameters. Depending on operating conditions and power consumption, a full time and full lube oil
pump is required to supply oil to the compressor (SB-3 and SB-4 ports) at a pressure up to 40 psi
to 50 psi above discharge pressure. Coolware provides the exact calculation at the actual operating
condition. If the calculation information is not available, ensure the oil pressure is a minimum of 40
psi above discharge pressure.
On all SGH compressors, the oil pressure to the balance piston must be controlled and regulated
through the SB-2 compressor port. For booster and low pressure applications, SB-2 may not need
to be connected. For higher operating pressure a balance piston regulator (BPR) must be installed
and piped to the SB-2 connection
Since there are several variants of the BPR, use Coolware to select the best option. Correct
BPR information and pressure settings are required. Do not run the compressor without his
information.
NOTICE
Do not run the compressor without the correct balance piston regulator information and pressure
settings
Construction Details
Housing
Castings for SGC/SGX screw compressors through model 3524 are close grain, pressure tight,
and grey cast iron to ensure structural integrity and mechanical and thermal stability under all
operating conditions. Ductile iron housings are also available for special applications.
Standard casing material for SGX 4013-4021 compressor models is ductile iron grade 60-40-18 per
ASTM A395 and ASME SA395. Contact Johnson Controls – FRICK sales for additional information.
13SGC/SGX Rotary Screw Compressor IOM (MK2)
Rotors
The rotors are made from the highest quality steel bar-stock or forgings to the exacting tolerances
of FRICK designed high-efficiency rotor profiles. The four-lobed male rotor (5 lobes on 408) is
connects directly to the driver. The six-lobed female rotor (7 lobes on 408) is driven by the male on
a thin oil film.
Bearings
Antifriction bearings with L10 rated life in excess of 50,000 hours at design conditions (using the
FRICK Superfilter) are used for reduced frictional horsepower and superior rotor positioning. This
results in reduced power consumption, particularly at higher pressure ratios. Cylindrical roller
bearings are provided to handle the radial loads and the thrust loads are absorbed by four point
contact or angular contact bearings. In addition, thrust balance pistons are provided to reduce the
thrust load and improve bearing life.
Shaft seal
The compressor shaft seal is a single-face type with a spring-loaded carbon stationary surface
riding against a cast iron rotating seat. The seal is capable of withstanding static pressure up to 600
psig. During operation it vents to low pressure to provide extended life.
The 408 compressors utilize silicon-silicon carbide seal face material.
Stepless capacity control
Capacity control is achieved by using a movable slide valve. The slide valve moves axially under the
rotors to provide fully modulated capacity control from 100% to minimum load capacity. Minimum
load capacity varies slightly with compressor model, pressure ratio, discharge pressure level, and
rotor speed. See the Table 1 for minimum capacity for all SGC models.
The slide valve is positioned by hydraulic movement of its control piston. When in the unloaded
position, gas is bypassed back to suction through a recirculation slot before compression begins
and any work is expended, providing the most efficient unloading method available or part-load
operation of a screw compressor.
Volumizer variable volume ratio control
The FRICK compressor includes a method of varying the internal volume ratio to match the system
pressure ratio. Control of the internal volume ratio eliminates the power penalty associated with
over- or under-compression. Volume ratio control is achieved by using a slide stop, a movable
portion of the rotor housing that moves axially with the rotors to control discharge port location.
The slide stop is moved by hydraulic actuation of a control piston. The range of adjustment is listed
in the Table 3.
Motor mount
SGC/SGX models through 3524 are designed with a drive end flange that mates with a cast iron
motor mount (available as a sales order option). The motor mount is precision machined so that it
ensures proper alignment of the compressor and motor coupling.
SGC/SGX Rotary Screw Compressor IOM (MK2)14
Table 3: Compressor volume and capacity ratio
SGC model Min. Vi(1) Max. Vi Min. capacity % Slide valve and slide stop travel
1913 2.2 5.0
1918 2.2 5.0
2313 2.2 5.0
2317 2.2 5.0
2321 2.2 5.0
2813 2.2 5.0
2817 2.2 5.0
2821 2.2 5.0
2824 2.0 4.1
3511 2.2 5.0
3515 2.2 5.0
3519 2.2 5.0
3524 2.4 4.5
4013 2.2 5.0
4018 2.2 5.0
4021 2.2 4.3
Refer to CoolWare Refer to NS-7-11
Compressor volume ratio and capacity
information
1. Optional 1.7 - 3.0 Vi
15SGC/SGX Rotary Screw Compressor IOM (MK2)
Installation
Design Limits
Information for all of the models is provided below. See CoolWare to determine the limits for a
specific application.
SGC/SGX compressor models are primarily designed to connect to an electric drive motor using a
tunnel mount. If the application requires, the compressor can also be driven with a foot-mounted
motor. The tunnel mount ensures proper alignment of the compressor and motor so that the
shaft seal and coupling operate properly. The rotor and bearing design set limitations must not be
exceeded (Refer to CoolWare). Refer to 090.020-M - FRICK Compressor Control Panel for additional
information on set-point limits.
For proper piping, also refer to the FRICK package manual, 070.610-IOM - RWF II Rotary Screw
Compressor Units, Models 100 through 1080.
Outline Dimensions
Drawings, for reference only, can be found in Figure 3 to Figure 9. Complete dimensions and access
connections can be found on the outline drawings.
SGC 1913 and 1918 DWG# 534E0677
SGC 2313 and 2317 DWG# 534E0700
SGC 2321 DWG# 534E0714
SGC 2813 and 2817 DWG# 534E0749
SGC 2821 DWG# 534E0768
SGC 2824 DWG# 534E0973
SGCH 3511 and SGCB 3511 DWG# 534E0966
SGCH 3515 and SGCB 3515 DWG# 534E0971
SGCH 3519 and SGCB 3519 DWG# 534E0972
SGXH 3519 and SGXB 3519/3524 DWG# 534E1405
SGXH 4013, 4018, and 4021 DWG# 534E1403
If you do not have these drawings, request any you require by contacting Johnson Controls - FRICK
sales.
SGC/SGX Rotary Screw Compressor IOM (MK2)16
Figure 3: Port locations, SGC 1913/1918
17SGC/SGX Rotary Screw Compressor IOM (MK2)
Port Thread size (in.) Description
P 3/4-16 UNF-2B straight THD O-ring Manifold block pressure
SB-2 3/4-16 UNF-2B straight THD O-ring Balance piston and inlet bearings
SB-3 1 1/16-12 UN-2B straight THD O-ring Compressor oil supply
SC-5 9/16-18 UNF-2B straight THD O-ring Inlet pressure
SC-6 9/16-18 UNF-2B straight THD O-ring Discharge pressure
SC-7 1/8-27 NPTF Seal weepage
SC-8 1 1/16-12 UN-2B straight THD O-ring Closed thread drain
SC-9 9/16-18 UNF-2B straight THD O-ring Inlet housing oil drain
SC-13 9/16-18 UNF-2B straight THD O-ring Oil drain cylinder
SC-14 9/16-18 UNF-2B straight THD O-ring Liquid injection bleed
SD-1 1 1/16-12 UN-2B straight THD O-ring Coalescer bleed
SE-1 1/2-14 NPTF Electrical connector
SL-1 1 1/16-12 UN-2B straight THD O-ring Low Vi liquid injection
SL-2 1 1/16-12 UN-2B straight THD O-ring Hi Vi liquid injection
SM-1 1 1/16-12 UN-2B straight THD O-ring Main oil injection
SV-1 1 1/2 square flange Vapor injection-tongue and groove
TE-1 3/4-14 NPTF Suction gas temperature element
T 9/16-18 UNF-2B straight THD O-ring Manifold block tank
SGC/SGX Rotary Screw Compressor IOM (MK2)18
19SGC/SGX Rotary Screw Compressor IOM (MK2)
Figure 4: Port locations, SGC 2313/2317
SGC/SGX Rotary Screw Compressor IOM (MK2)20
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Frick SGC/SGX Rotary Screw Compressor Installation Operation and Maintenance Guide

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Installation Operation and Maintenance Guide

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