To Next PageTo Next PageWhat to do if the condenser pressure sensor fails in my LG RCWFH Chiller?
If the condenser pressure sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What should I do if the evaporator pressure sensor is faulty in my LG RCWFH?
If the evaporator pressure sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the chilled water inlet temperature sensor is not working on my LG Chiller?
If the chilled water inlet temperature sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the chilled water outlet temperature sensor is not working on my LG RCWFH?
If the chilled water outlet temperature sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the cooling water inlet temperature sensor is not working on my LG RCWFH Chiller?
If the cooling water inlet temperature sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the cooling water outlet temperature sensor is not working on my LG RCWFH Chiller?
If the cooling water outlet temperature sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the compressor discharge temperature sensor is not working on my LG Chiller?
If the compressor discharge temperature sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the motor winding R phase temperature sensor is not working on my LG Chiller?
If the motor winding R phase temperature sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the motor winding S phase sensor is not working on my LG RCWFH Chiller?
If the motor winding S phase sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
What to do if the motor winding T phase sensor is not working on my LG RCWFH Chiller?
If the motor winding T phase sensor in your LG Chiller is malfunctioning, it might be due to a disconnected or short-circuited sensor. First, check the status of the parts and wiring. If there's a main board malfunction, or issues with the wiring, consider replacing the parts or rewiring as necessary.
Safety warnings for serious injury or death if directions are ignored.
Safety cautions for minor injury or product damage if directions are ignored.
Describes the installation of water cooled screw type centrifugal chillers using R-134a refrigerant.
Shows the general structure and parts composition of the two-stage centrifugal chiller.
Explains the nomenclature for the centrifugal chiller model.
Details information found on the unit's name plate for service purposes.
Provides temperature conversion tables between Fahrenheit and Celsius.
Explains the refrigerant cycle using R-134a in the two-stage centrifugal chiller.
Details the characteristics of the compressor's main components: Impeller, Bearing, Diffuser, etc.
Details HMI components: touch screen, ports, and power controls.
Overview of starter panel components: fuse breaker, PT, reactors, capacitors, contactors, relays.
Visual identification of control board components like transformer, fuse, breaker, relay, contactor.
Explains the PID control algorithm for optimized temperature management.
Information on communication protocols (Modbus, BACnet, TCP/IP) for BMS integration.
Details on connecting remote start/stop signals and status signals.
Describes interlock and start/stop signals for pumps and fans from the power panel.
Details signals for central monitoring: motor operation, abnormality, warning.
Flowchart illustrating the start and control sequence of the turbo chiller.
Details protection functions: causes, actions, and status for sensors, interlocks, and pressure.
Checklists for thorough preparation before inspection, including safety measures and tools.
Final checklist and recording of inspection history after service.
General checklist for ambient conditions, equipment, insulation resistance, and control circuit.
Overview of HMI menu structure and how to input information.
Details the 'View All' home screen items: device name, tabs, animation, and key information.
Functionality for setting and managing desired actions at specific times via schedules.
Displays history related to chiller operation and error events.
Menu for users to set operational values: Control Mode, Operation Mode, PID Temperature Control.
Settings for language, time, date, holidays, and version information for the HMI system.
Sets use/not use for the screen saver and its waiting time.
Generates and compresses important data every 5 seconds into an SD card.
Enables remote monitoring and control of chiller status via the Web.
Flowchart for steps from receipt and installation to final startup checks.
Procedures for preparing the chiller: air tightness, vacuuming, oil, and refrigerant charge.
Step-by-step procedure for initiating chiller operation: power on, checks, and pump activation.
Checks and procedures for restarting the chiller after extended periods of inactivity.
Procedure for properly stopping the chiller: vane closure, compressor stop, pump shutdown.
Criteria for machine deterioration, overhaul, and inspection based on failure rate.
Daily inspection standards for compressor, motor, condenser, and evaporator.
Procedures for reducing pressure, preventing freezing, and maintaining oil temperature during off-season.
Annual maintenance inspection items for the motor: cooling status, insulation, start-up, vane operation.
Annual maintenance inspection items for condenser, evaporator, lubrication system, and safety devices.
Compressor oil specifications, replacement procedure, and oil filter change.
Non-periodical maintenance: bearings, gears, leak inspection, and heat exchanger cleaning.
Lists abnormal categories, causes, and actions for controller alarms like sensor errors.
Table for recording operational data: pressures, temperatures, currents, and other parameters.
General
