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
66 RLC-SVX09H-EN
Table 49. Liquid line sizing RTUD 200 ton
Height (ft)
Ckt 1
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.375 1.375 1.375 1.375 1.375 1.375
50
1.375 1.375 1.375 1.375 1.375 1.375
75
1.375 1.375 1.375 1.375 1.375 1.375
100
1.375 1.375 1.375 1.375 1.375 1.375
125
1.375 1.375 1.375 1.375 1.375 1.375
150
1.375 1.375 1.375 1.375 1.375 1.375
175
1.375 1.375 1.375 1.375 1.375 1.625
200
1.375 1.375 1.375 1.375 1.625 1.625
225
1.375 1.375 1.375 1.625 1.625 1.625
250
1.375 1.625 1.625 1.625 1.625 1.625
275
1.625 1.625 1.625 1.625 1.625 1.625
300
1.625 1.625 1.625 1.625 1.625 1.625
Ckt 2
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.375 1.375 1.375 1.375 1.375 1.375
50
1.375 1.375 1.375 1.375 1.375 1.375
75
1.375 1.375 1.375 1.375 1.375 1.375
100
1.375 1.375 1.375 1.375 1.375 1.375
125
1.375 1.375 1.375 1.375 1.375 1.375
150
1.375 1.375 1.375 1.375 1.375 1.375
175
1.375 1.375 1.375 1.375 1.375 1.625
200
1.375 1.375 1.375 1.375 1.625 1.625
225
1.375 1.375 1.375 1.625 1.625 1.625
250
1.375 1.375 1.625 1.625 1.625 1.625
275
1.625 1.625 1.625 1.625 1.625 1.625
300
1.625 1.625 1.625 1.625 1.625 1.625
Table 50. Liquid line sizing RTUD 220 ton
Height (ft)
Ckt 1
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.375 1.375 1.375 1.375 1.375 1.375
50
1.375 1.375 1.375 1.375 1.375 1.375
75
1.375 1.375 1.375 1.375 1.375 1.375
100
1.375 1.375 1.375 1.375 1.375 1.375
125
1.375 1.375 1.375 1.375 1.375 1.375
150
1.375 1.375 1.375 1.375 1.375 1.375
175
1.375 1.375 1.375 1.375 1.375 1.625
200
1.375 1.375 1.375 1.375 1.625 1.625
225
1.375 1.375 1.625 1.625 1.625 1.625
250
1.375 1.625 1.625 1.625 1.625 1.625
275
1.625 1.625 1.625 1.625 1.625 1.625
300
1.625 1.625 1.625 1.625 1.625 1.625
Ckt 2
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.375 1.375 1.375 1.375 1.375 1.375
50
1.375 1.375 1.375 1.375 1.375 1.375
75
1.375 1.375 1.375 1.375 1.375 1.375
100
1.375 1.375 1.375 1.375 1.375 1.375
125
1.375 1.375 1.375 1.375 1.375 1.375
150
1.375 1.375 1.375 1.375 1.375 1.375
175
1.375 1.375 1.375 1.375 1.625 1.625
200
1.375 1.375 1.375 1.625 1.625 1.625
225
1.375 1.625 1.625 1.625 1.625 1.625
250
1.625 1.625 1.625 1.625 1.625 1.625
275
1.625 1.625 1.625 1.625 1.625 1.625
300
1.625 1.625 1.625 1.625 1.625 1.625
Table 51. Liquid line sizing RTUD 250 ton
Height (ft)
Ckt 1
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.375 1.375 1.375 1.375 1.375 1.375
50
1.375 1.375 1.375 1.375 1.375 1.375
75
1.375 1.375 1.375 1.375 1.375 1.375
100
1.375 1.375 1.375 1.375 1.375 1.375
125
1.375 1.375 1.375 1.375 1.375 1.375
150
1.375 1.375 1.375 1.375 1.375 1.375
175
1.375 1.375 1.375 1.375 1.625 1.625
200
1.375 1.375 1.625 1.625 1.625 1.625
225
1.375 1.625 1.625 1.625 1.625 1.625
250
1.625 1.625 1.625 1.625 1.625 1.625
275
1.625 1.625 1.625 1.625 1.625 1.625
300
1.625 1.625 1.625 1.625 1.625 1.625
Ckt 2
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.375 1.375 1.375 1.375 1.375 1.375
50
1.375 1.375 1.375 1.375 1.375 1.375
75
1.375 1.375 1.375 1.375 1.375 1.375
100
1.375 1.375 1.375 1.375 1.375 1.375
125
1.375 1.375 1.375 1.375 1.375 1.375
150
1.375 1.375 1.375 1.375 1.375 1.375
175
1.375 1.375 1.375 1.375 1.625 1.625
200
1.375 1.375 1.625 1.625 1.625 1.625
225
1.375 1.625 1.625 1.625 1.625 1.625
250
1.625 1.625 1.625 1.625 1.625 1.625
275
1.625 1.625 1.625 1.625 1.625 1.625
300
1.625 1.625 1.625 1.625 1.625 1.625
Table 50. Liquid line sizing RTUD 220 ton (continued)
Height (ft)