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Hanbell RC2-140B - User Manual

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5580 Enterprise Pkwy., Fort Myers, FL 33905 O󰀩ce (239) 694-0089 Fax: (239) 694-0031
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

Table of Contents

Questions and Answers

  • C
    Connor LoweryAug 14, 2025
    Why is the discharge temperature high in my Hanbell Air Compressor?
    • T
      Taylor JohnsonAug 15, 2025
      High discharge temperature in a Hanbell Air Compressor can stem from several issues: * Insufficient refrigerant: Check for leaks, add refrigerant, and adjust suction superheat to less than 10°K. * Condenser problems: Inspect and clean the condenser to ensure proper heat exchange. * Refrigerant overcharge: Reduce the amount of refrigerant. * Air/moisture: Purify refrigerant and vacuum system. * Expansion valve issues: Adjust suction superheat. * Insufficient lubrication oil: Add oil. * Damaged bearings: Change the bearings. * Improper Vi value: Change the slide valve. * Lack of system cooling: Install liquid injection or oil cooler.
  • E
    Eric ChapmanAug 18, 2025
    What to do if Hanbell Air Compressor motor thermistor / sensor trips suddenly?
    • T
      Tanya ClarkAug 18, 2025
      If your Hanbell Air Compressor experiences a sudden trip of the motor thermistor or sensor, it could be due to several reasons: * Low suction pressure: Install liquid injection to the motor coil. * Refrigerant shortage: Charge refrigerant. * Clogged suction filter: Clean the filter. * High suction temperature: Install liquid injection to the motor coil. * High suction superheat: Adjust the superheat to less than 10°K. * Unstable electricity: Check the electricity power supply.
  • M
    michael84Aug 21, 2025
    How to fix abnormal vibration and noise in Hanbell Air Compressor?
    • U
      umcdanielAug 21, 2025
      Abnormal vibration and noise in your Hanbell Air Compressor can arise from: * Damaged bearings: Change the bearing. * Liquid compression: Adjust proper suction superheat. * Rotor friction: Change screw rotors or/and compression chamber. * Insufficient lubrication oil: Add oil. * Loosen internal parts, friction between slide valve and rotors, external debris: Dismantle the compressor and change the damaged parts. * Electromagnetic sound of the solenoid valve: Check. * System harmonic vibration: Check the system piping and if possible improve it using copper pipe. * Motor rotor rotates imbalance: Check and repair.
  • S
    Samantha FloresAug 25, 2025
    Why does my Hanbell RC2-140B Air Compressor fail to start or have Y-Δ starter shifting failure?
    • L
      Linda LoganAug 25, 2025
      If your Hanbell Air Compressor fails to start or the Y-Δ starter shifts incorrectly, consider these potential causes: * Slide valve piston issue: Check if the unloading SV is energized once the compressor shuts down. Unload the compressor before shot down. * Incorrect voltage: Check the power supply. * Voltage drop/contactor failure/phase failure: Check the power supply and the contactor. * Motor breakdown: Change the motor. * Incorrect power connection: Check and re-connect. * Y-Δ timer failure: Check or replace. * Closed valve: Open the stop valve. * Improper Y-Δ wiring: Check and re-connect the wiring. * Rotor locked/Earth fault: Check and repair. * Protection device trip: Check.
  • B
    Beverly MendezAug 28, 2025
    What causes oil loss in a Hanbell RC2-140B?
    • M
      Mark GonzalezAug 28, 2025
      If your Hanbell Air Compressor is losing oil, possible causes include: * Lack of refrigerant: Check for leaks and add refrigerant. * Improper system piping: Check and correct the piping or install an external oil separator. * Liquid fills back: Maintain suitable suction superheat at compressor.
  • L
    lauraallenAug 31, 2025
    Why is my Hanbell Air Compressor unable to load?
    • W
      Whitney HuffAug 31, 2025
      If your Hanbell Air Compressor is unable to load, consider the following: * Low temperature/high oil viscosity: Turn on the oil heater before compressor start. * Clogged capillary: Clean or replace capillary. * Solenoid valve issues: Clean/purge the valve core or replace the coil. * Clogged oil line: Check and clean the compressor oil circuit. * Piston issue: Change piston or piston ring. * Clogged oil filter: Clean oil filter (replace if needed). * Small pressure differential: Minimum pressure differential is 4 bar. Consider to install an oil pump.
  • I
    Ian LucasSep 3, 2025
    What causes a Hanbell RC2-140B Air Compressor to be unable to unload?
    • J
      Joseph SantiagoSep 4, 2025
      If your Hanbell Air Compressor is unable to unload, it could be due to: * Modulation solenoid valve clogged or burnt: Clean or replace the solenoid valve. * Worn/broken piston rings or damaged cylinder: Change piston (if cylinder damaged severely, change the cylinder). * Insufficient lubrication oil: Add oil if necessary. * Leakages at internal discharge cover plate end side: Check or replace the gasket and tighten the bolts. * Solenoid valve voltage misused: Check the control voltage. * Piston stuck: Change the piston set, and check the cylinder and slide valve. * Capacity control logic unsuitable: Check.
  • M
    Michele BurnsSep 6, 2025
    What causes low suction pressure in a Hanbell RC2-140B Air Compressor?
    • A
      Ashley EdwardsSep 7, 2025
      If your Hanbell Air Compressor has low suction pressure, check for: * Lack of refrigerant: Check for leaks and add refrigerant. * Dirty/iced evaporator: Defrost or clean coil. * Clogged liquid line filter drier: Replace the cartridge. * Clogged suction line/strainer: Clean or change suction strainer. * Expansion valve malfunctioning: Check and reset for proper superheat. * Low condensing temperature: Check means for regulating condensing temperature.
  • L
    Lisa MurphySep 10, 2025
    What to do if Hanbell Air Compressor does not run?
    • S
      stephanie99Sep 12, 2025
      If your Hanbell Air Compressor does not run, check these potential causes: * Motor line open: Check. * Tripped overload: Check the electrical connection. * Screw rotors seized: Replace screw rotors, bearings etc. * Motor broken: Change motor.

Summary

Compressor Specifications

Compressor Construction Details

Illustrates the internal components and assembly of RC2 series compressors.

Design Features

Compression and Capacity Control

Capacity Control Systems

Details the mechanisms for adjusting the refrigeration capacity of the compressor.

Application Limits and Ratios

Application Limits Charts

Graphical representation of safe operating limits based on refrigerant and temperature conditions.

Lubricants and Oil Management

Compressor Handling and Installation

Lifting and Mounting Instructions

Provides guidelines for safe lifting, handling, and mounting of the compressor unit.

Compressor Accessories

Suction and Discharge Stop Valves

Control Modules and Temperature Sensors

Information on INT69HBY control module and PTC/Pt100/Pt1000 temperature sensors.

Liquid Injection Systems

External Oil Separators

External Oil Filters

Oil Flow Switches and Mufflers

Mounting Pads and Minimum Pressure Valves

Installation and Connection Diagrams

Electrical System and Motor Design

Power Supply Requirements

Covers voltage limitations, frequency, and unbalanced voltage issues.

Compressor Protection Devices

Lists and describes essential protection devices for compressor safety and operation.

Grounding Procedures

Operation and Maintenance

Compressor Start-up Checklist

A comprehensive checklist of procedures and checkpoints before compressor start-up.

Troubleshooting Guide

Identifies common problems, their probable causes, and recommended corrective actions.

Advanced Cooling and Application Strategies

Additional Cooling Methods

Economizer Applications

Details how economizer systems improve capacity and efficiency via sub-cooling.

Parallel System Applications

Application Notes and Recommendations

Pump Down and Partial Load Operation

Selection Software Guide

Software Installation and Operation

Warranty and Maintenance

Warranty Policy and Maintenance Guidelines

Details the 24-month warranty policy and guidelines for preventive maintenance.

Maintenance Schedules and Procedures

Outlines recommended maintenance intervals for key compressor components.

Hanbell RC2-140B Specifications

General IconGeneral
BrandHanbell
ModelRC2-140B
CategoryAir Compressor
LanguageEnglish

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