How to troubleshoot high main filter pressure difference in SABROE Compressor?
If the main filter pressure difference is too high in the SABROE Compressor, replace the filters if they are clogged with dirt. Allow the oil to warm up if it is too cold. Ensure that the service valve on the filter outlet is fully open.
What to do if oil filter differential pressure is too high in SABROE Compressor?
If the oil filter differential pressure is too high in the SABROE Compressor, replace the oil filter because it is likely clogged.
What causes oil pressure to fluctuate in a SABROE Compressor?
If the oil pressure fluctuates in the SABROE Compressor, make the necessary adjustments or corrections to address liquid injection overfeeding or refrigerant flood back from the system.
How to handle gradual oil loss in SABROE Compressor with oil in the sight glass?
If there is gradual oil loss with an oil level in the coalescer section sight glass of the SABROE Compressor, lower the oil level by opening/adjusting the oil return valve. Correct operation if there is refrigerant carry-over or liquid injection overfeeding. Adjust evaporator feeds if there is a loss of suction superheat. Replace the oil charge and coalescers if the oil is contaminated, or the coalescer elements are damaged or not seated. Open the return valve if the coalescer return valve is closed. Clean the strainer if the coalescing oil return line strainer is blocked.
What causes noise and vibrations in SABROE Compressor?
To address noise and vibrations in the SABROE Compressor, clean the pump strainer if it is blocked. Adjust liquid injection if there is liquid refrigerant overfeed. Repair or replace the pump if it is worn out.
General| Model | SAB 193 S |
|---|---|
| Cylinder Quantity | 3 |
| Refrigerant | R717 (Ammonia) |
| Frequency | 50 Hz / 60 Hz |
| Cooling Capacity | Varies with refrigerant and operating conditions (consult selection guide) |
| Motor Power | Varies with operating conditions (consult selection guide) |
Provides data for sales and planning phases, including component descriptions and technical functions.
Manual intended for sales, service, and contracting; warranty work by competent personnel only.
Explains the naming convention for Sabroe and Frick compressors and their correspondence.
Lists revisions and updates made to the manual across different versions.
Details the information found on the compressor name plate and serial number structure.
Specifies the information on the name plate for ATEX certified compressors.
Explains ATEX directives, material groups, categories, hazardous environments, and temperature classes.
Describes the information on the name plate for the unit and piping system.
Illustrates and explains various safety signs found on the equipment.
Defines permissible applications and restrictions for the screw compressor unit.
Specifies how the compressor should and should not be used to prevent damage or injury.
General safety measures including work area, operation, and maintenance precautions.
General safety guidelines to supplement other manuals and regulations.
Precautions for safe maintenance and service activities on the compressor.
Safety considerations for electrical installations, particularly for ATEX executions.
Details on types of compressor oils and safety guidelines for handling them.
Information on F-gas regulation requirements, including bans, labelling, and leakage tests.
Provides first aid measures for ammonia exposure, including inhalation, eyes, and skin contact.
Gives first aid instructions for accidents involving HFC/HCFC refrigerants.
Details the design and construction of the screw compressor unit and its main components.
Overview of major subsystems within the screw compressor unit.
Describes the UniSAB III control and monitoring system for compressor operation.
Details the compressor itself, including the integral suction strainer.
Discusses VSD equipment, its integration, and potential vibration issues.
Explains the functions and types of the compressor lubrication system.
Details the oil flooded screw compressor and the oil separation system.
Describes the function of the automatic oil return valve (EVRB).
Explains the external oil filter, its construction, and protection mechanism.
Details the hydraulic system for moving the slide valve and slide stop.
Describes different systems for controlling compressor oil temperature.
Explains the function and installation of the suction check valve with by-pass.
Specifies operating limits for ambient temperature and humidity.
Guidance on selecting the correct lubricating oil for Sabroe screw compressors.
Describes the heating rod element for maintaining oil temperature during standstill.
Details the 'cold-start' discharge valve for rapid oil pressure development at start-up.
Explains the protecting system for preventing inadmissible high pressure.
Overview of oil cooling systems and their general piping layout.
Describes the operation and piping arrangement for thermosyphon oil cooling systems.
Details maximum permitted connection forces and moments for AlfaNova oil coolers.
Describes the KRACHT oil pump, its features, and by-pass valve functions.
Explains the economiser option for increased system capacity and efficiency.
Presents the general piping diagram for the compressor unit.
Provides a key to valve positions during operation for piping diagrams.
Details the sensors, valves, and components connected to the UniSAB III control system.
Provides dimension sketches and tables for equipment data.
Lists allowable axial, vertical, and lateral loads and torques for flange connections.
Instructions on the correct placement and recommended distance for the suction isolation valve.
Details connection dimensions and port locations for the compressor unit.
Provides dimensional outlines and connection details for compressor models.
Shows the positions of electrical connections and components on the unit.
Lists and describes various components and their connections, including motor data.
Provides unit dimension data and external heat surface areas.
Includes electric motor weights and geometrical swept volume data.
Guidance on planning sufficient space around the plant for maintenance.
Lists minimum suction flow capacities for different compressor models.
Example of permissible working range for a compressor based on temperatures.
Guidelines for selecting appropriate IEC electric motor types for compressors.
Factors to consider when determining motor size based on power demands.
Details motor sizing for operating conditions and starting torque requirements.
Specifies the correct clockwise rotation direction for the compressor.
Describes the requirements for an emergency stop system integrated with UniSAB III.
Information on noise data measurement standards (SWL, SPL) and calculation.
Provides specific noise data (SWL, SPL) for SAB 193-233-283 compressors.
Covers vibration data standards and test pressure levels for compressors.
Details vibration data standards and limits for reciprocating and screw compressors.
Specifies standard pressure test levels for compressors and components.
Describes dangers and safe installation methods for the equipment.
Emphasizes reading safety precautions before installation to prevent injury or damage.
Details mechanical, electrical, and safety equipment installation requirements.
Specifies that installation personnel must be competent and well-trained.
Lists essential safety equipment to be used during installation.
Refers to transport instructions for safe lifting and loading procedures.
Explains the importance of proper alignment for service life and vibration reduction.
Provides a method for achieving parallel shaft alignment between compressor and motor.
Details the process of mounting the unit directly onto a concrete foundation.
Describes the use of vibration dampers for efficient damping of vibrations.
Addresses VSD equipment and the assessment of feasibility for variable speed operation.
Provides a method for calculating center of gravity, support reactions, and tipping angle.
Instructions for mounting and dismantling the coupling between motor and compressor.
Step-by-step procedure for the installation of the BPU coupling.
Guidance on laying pipes to avoid stress from temperature changes.
Safety precautions and instructions for connecting the electricity supply.
Procedures for pressure testing the refrigeration plant and unit.
Instructions for evacuating the plant to remove air and moisture.
Procedure for charging the compressor unit with lubricating oil.
A checklist for verifying the completeness and correctness of the installation.
Describes the UniSAB III control system and its sensors.
Refers to the UniSAB III Operating manual for control system descriptions and settings.
Emphasizes reading safety precautions before performing maintenance.
Outlines the maintenance schedule including daily, periodic, and major overhaul tasks.
Describes procedures for stopping and starting the compressor for short and long standstills.
Provides guidelines for long-term storage of equipment to prevent deterioration.
Details visual checks for oil pressure, oil level, noise, and vibration.
Rules for using lubricating oil, including charging, grade, and mixing.
Explains the importance of oil in the compressor and recommends oil analysis.
Describes how to visually assess oil quality for clarity, particles, and feel.
Details the process and benefits of oil analysis by the supplying company.
Provides a step-by-step procedure for charging the compressor with oil.
Guides on calculating the necessary oil amount based on unit composition and tables.
Briefly covers motor lubrication and replacing motor bearings.
Explains the situations requiring faultfinding and emphasizes systematic approaches.
Provides tables for common problems in refrigeration plants and compressor units.
Highlights dangers and safety precautions related to equipment transport.
Details on handling the compressor unit, including lifting points and weight.
Provides critical warnings and instructions for safe unit loading onto transport.
Guidelines for storing the unit to prevent damage and corrosion.
Emphasizes safety precautions and reading associated documentation before commissioning.
Covers final installation checks, personnel requirements, and training.
Details procedures for plant evacuation and refrigerant charging.
Instructions for plant start-up, including alignment checks and fuse management.
A comprehensive checklist for commissioning compressors, chillers, and heat pumps.
Directs users to a separate manual for spare parts information.
Indicates that spare parts drawings are available in a separate manual.
Safety measures to be followed before and during dismantling of the plant.
Guidelines for the proper disposal of machine parts, oil, refrigerant, and electric components.
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