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

Installation - Mechanical
74 RLC-SVX09H-EN
Shipping Spacers
For RTWD units listed in table below, and all RTUD 80-130
ton units, remove and discard the two shipping spacers
with four bolts, located underneath the oil separator, as
shown in Figure 42, p. 74 before starting unit.
For RTUD 150-250 ton units, remove and discard the four
sets of shipping spacers (each including two spacers and
one bolt), located within the oil separator mounting
brackets, as shown in Figure , p. 74 before starting unit.
Failure to remove the spacers could result in excessive
noise and vibration transmission into the building
NOTICE:
Excessive Noise and Vibration!
Failure to remove the spacers could result in excessive
noise and vibration transmission into the building
Table 66. RTWD Units that require oil sep spacer removal
Size Hz Efficiency
80, 90, 100, 110, 120, 130, 140 60 STD
80, 90, 100, 110, 120, 130 60 HIGH
70, 80, 90, 100, 110, 120, 130, 140, 150 50 STD
60, 70, 80, 90, 100, 110, 120 50 HIGH
Figure 42. Oil separator spacer removal -
RTWD and RTUD 80-130T
Figure 43. Oil sep spacer removal - RTUD 150-250T
Oil Separator
Spacers