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

Controls Interface
150 RLC-SVX09H-EN
Circuit 2 Evaporator Saturated Refrigerant Temperature Status °F (°C)
Circuit 2 Evaporator Approach Temperature Status °F (°C)
Circuit 2 Evaporator Refrigerant Liquid Level Status in (mm)
Circuit 2 Evaporator Refrigerant Liquid Level Error Status in (mm)
Circuit 2 EXV Percent Open Status %
Circuit 2 EXV Position Steps Status steps
Circuit 2 Differential Refrigerant Pressure Status psid
Circuit 2 Condenser Refrigerant Pressure Status psi gauge
Circuit 2 Condenser Saturated Refrigerant Temperature Status °F (°C)
Circuit 2 Compressor refrigerant Discharge Temperature Status °F (°C)
Circuit 2 Condenser Approach Temperature Status °F (°C)
Circuit 2 Compressor Refrigerant Discharge Superheat Status °F (°C)
Circuit 2 Compressor 2A Oil Pressure Status psi gauge
Circuit 2 Compressor 2A Average Line Current Status % RLA
Circuit 2 Compressor 2A Line 1 Current Status % RLA
Circuit 2 Compressor 2A Line 2 Current Status % RLA
Circuit 2 Compressor 2A Line 3 Current Status % RLA
Circuit 2 Starter 2A Voltage Vab Status volts
Circuit 2 Starter 2A Voltage Vbc Status volts
Circuit 2 Starter 2A Voltage Vca Status volts
Circuit 2 Compressor 2A Power Consumption Status kW
Circuit 2 Compressor 2A Power Factor Status
Circuit 2 Modulation Unload Steady Command Status
Circuit 2 Condenser Air Flow Status
% of fan
deck
Circuit 2 Condenser Inverter Speed Status
% of inverter
full speed
Circuit 2 Average Condenser Approach Temperature Status
Diff Temp °F
(°C)
Circuit 2 Re-initialize Average Condenser Approach Temperature Setting
Circuit 2 Compressor 2A Average Oil Pressure Drop Status
% of System
DP
Circuit 2 Re-initialize Compressor 2A Average Oil Pressure Drop Setting
Circuit 2 Compressor 2A Oil Filter Life Remaining Status %
Circuit 2 Re-initialize Compressor 2A Oil Filter Life Remaining Setting
Circuit 2 Time Remaining Until Oil Analysis Recommended Status Hrs
Circuit 2 Re-initialize Oil Time Remaining Setting
Override & Lockouts
Circuit 1 Restart Inhibit Time - Compressor 1A Status mins:secs
Circuit 1 Restart Inhibit Time - Compressor 2A Status mins:secs
Manual
Overrides
Clear Restart Inhibit Setting
Manual
Overrides
Evaporator Water Pump Override Setting Auto
Chiller Evaporator Water Pump Override Time Remaining Status mins:secs
Manual
Overrides
Condenser Water Pump Override Setting Auto
Chiller Condenser Water Pump override Time Remaining Status mins:secs
Circuit 1 EXV Control override Setting
Circuit 1 Manual EXV Position Command Setting % 0 100
Table 121. Unit view tabs - detail (continued)
Tab System Control Point Name Status Unit Min Max Default