Carrier 19DG User Manual

Essential information needed before machine setup.

Steps for filling the machine with refrigerant.

List of tools and items necessary for initial setup.

Procedure to verify the machine's seal and vacuum integrity.

Procedure to check for leaks in the refrigerant system.

Verification of electrical connections and safety.

Procedure for filling the compressor oil reservoir.

Procedure to ensure the oil heater is functioning correctly.

Steps to ready the machine before operation begins.

The primary procedure for starting the machine.

Configuration and testing of safety devices during initial setup.

Verifying the function of operational controls.

Adjusting the motor current setting for optimal performance.

Fine-tuning the refrigerant charge for peak efficiency.

Monitoring key parameters to ensure normal operation.

Responsibilities and tasks for machine operators.

Pre-operational checks and system readiness.

The procedure for safely starting the compressor.

Inspecting the oil level and lubrication components.

Verifying the purge system's functionality to remove air.

Routine checks and cleaning of the control panel.

Periodic testing of safety devices for protection.

Yearly procedure for replacing oil and filter elements.

Maintaining compressor bearings through proper lubrication.

Ensuring the purge system is clean and functional.

Characteristics and handling of Refrigerant 11.

Instructions for adding refrigerant to the system.

Procedure for safely draining refrigerant from the machine.

Steps for filling the machine with nitrogen or dry air.

Inspection and adjustment of the guide vane mechanism.

Diagnosing and resolving issues when the compressor fails to start.

Troubleshooting the safety circuit indicator.

Diagnosing why the load recycle light is off.

Troubleshooting the oil pump light sequence and start light status.

Identifying causes and remedies for compressor shutdown.

Diagnosing loss of start and safety circuit lights.

Troubleshooting why compressor guide vanes fail to open.

Diagnosing high chilled water temperature during operation.

Diagnosing low chilled water temperature during operation.

Troubleshooting low oil reservoir temperature issues.

Troubleshooting high oil reservoir temperature issues.

Diagnosing why the purge system is not activating automatically.

Troubleshooting frequent purge cycles in automatic mode.

Overview of the machine's major parts and their functions.

Explanation of how the refrigerant cycle works.

Description of the system used to cool the compressor motor.

A brief overview of the oil system's function.

Detailed explanation of the lubrication system components.

Settings for various valves and switches in the purge system.

Function and sequence of the program timer.

Operation of the oil heater and thermostat.

Overview of typical machine control wiring diagrams.

Step-by-step process for starting the machine.

Detailed steps for initiating machine start-up.

Setpoint control for altering leaving chilled water temperature.

Centralized control for multiple refrigeration machines.

Automatic start/stop based on external triggers.

Manual control of chiller start and stop.

First-out indication for machine safety controls.

Procedure for setting the safety indicator panel.

Operator instruction on compressor and motor components.

Operator instruction on the oil system.