Installation and Maintenance Manual
Table Of Contents
- Warnings, Cautions and Notices
- Model Number Description
- General Information
- Pre-Installation
- Unit Dimensions/Weights
- Installation - Mechanical
- Location Requirements
- Rigging
- Evaporator Piping
- Condenser Water Piping (RTWD Units Only)
- Refrigerant Relief Valve Venting
- RTUD Installation
- System Configuration
- Equivalent Line Length
- Liquid Line Sizing
- Discharge (Hot Gas) Line Sizing
- Example
- Refrigerant Charge Determination
- RTUD Chilled Water Flow Control
- Oil Charge Determination
- Outdoor Air Temperature Sensor Installation Requirements
- Fan Control for the Remote Air Cooled Condenser
- RTUD Condenser Elevation Setting
- Shipping Spacers
- Installation - Electrical
- RTWD/RTUD Operating Principles
- Controls Interface
- Pre-Start Checkout
- Unit Start-Up Procedures
- Unit Shutdown
- Service and Maintenance
- Diagnostics
- Wiring Schematics
Service and Maintenance
182 RLC-SVX09H-EN
• Perform all weekly and monthly maintenance
procedures.
• Check the refrigerant charge and oil level. Refer to
“Maintenance Procedures”. Routine oil changing is not
necessary on a hermetic system.
• Have a qualified laboratory perform an oil analysis to
determine system moisture content and acid level
.
Note: Due to the hygroscopic properties of the POE oil, all
oil must be stored in metal containers.The oil will
absorb water if stored in a plastic container.
• Check the pressure drop across the oil filter. Refer to
“Maintenance Procedures”.
• Contact a qualified service organization to leak check
the chiller, to inspect safety controls, and inspect
electrical components for deficiencies.
• Inspect all piping components for leakage and/or
damage. Clean out any inline strainers.
• Clean and repaint any areas that show signs of
corrosion.
• Test vent piping of all relief valves for presence of
refrigerant to detect improperly sealed relief valves.
Replace any leaking relief valve.
• Inspect the condenser tubes for fouling; clean if
necessary. Refer to “Maintenance Procedures”.
• Check to make sure that the crank case heater is
working.
Scheduling Other Maintenance
• Use a nondestructive tube test to inspect the
condenser and evaporator tubes at 3-year intervals.
Note: It may be desirable to perform tube tests on these
components at more frequent intervals, depending
upon chiller application.This is especially true of
critical process equipment.
• Depending on chiller duty, contact a qualified service
organization to determine when to conduct a complete
examination of the unit to determine the condition of
the compressor and internal components.
Operating Log
A sample of several operating logs and checklists have
been included.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.