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
RLC-SVX09H-EN 63
Table 40. Liquid line sizing RTUD 80 ton
Height (ft)
Ckt 1
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.125 1.125 1.125 1.125 1.125 1.125
50
1.125 1.125 1.125 1.125 1.125 1.125
75
1.125 1.125 1.125 1.125 1.125 1.125
100
1.125 1.125 1.125 1.125 1.125 1.125
125
1.125 1.125 1.125 1.125 1.125 1.125
150
1.125 1.125 1.125 1.125 1.125 1.125
175
1.125 1.125 1.125 1.125 1.125 1.125
200
1.125 1.125 1.125 1.125 1.125 1.125
225
1.125 1.125 1.125 1.125 1.125 1.125
250
1.125 1.125 1.125 1.125 1.125 1.125
275
1.125 1.125 1.125 1.125 1.125 1.125
300
1.125 1.125 1.125 1.125 1.125 1.125
Ckt 2
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.125 1.125 1.125 1.125 1.125 1.125
50
1.125 1.125 1.125 1.125 1.125 1.125
75
1.125 1.125 1.125 1.125 1.125 1.125
100
1.125 1.125 1.125 1.125 1.125 1.125
125
1.125 1.125 1.125 1.125 1.125 1.125
150
1.125 1.125 1.125 1.125 1.125 1.125
175
1.125 1.125 1.125 1.125 1.125 1.125
200
1.125 1.125 1.125 1.125 1.125 1.125
225
1.125 1.125 1.125 1.125 1.125 1.125
250
1.125 1.125 1.125 1.125 1.125 1.125
275
1.125 1.125 1.125 1.125 1.125 1.125
300
1.125 1.125 1.125 1.125 1.125 1.125
Table 41. Liquid line sizing RTUD 90 ton
Height (ft)
Ckt 1
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.125 1.125 1.125 1.125 1.125 1.125
50
1.125 1.125 1.125 1.125 1.125 1.125
75
1.125 1.125 1.125 1.125 1.125 1.125
100
1.125 1.125 1.125 1.125 1.125 1.125
125
1.125 1.125 1.125 1.125 1.125 1.125
150
1.125 1.125 1.125 1.125 1.125 1.125
175
1.125 1.125 1.125 1.125 1.125 1.375
200
1.125 1.125 1.125 1.125 1.375 1.375
225
1.125 1.125 1.125 1.375 1.375 1.375
250
1.125 1.125 1.375 1.375 1.375 1.375
275
1.125 1.375 1.375 1.375 1.375 1.375
300
1.375 1.375 1.375 1.375 1.375 1.375
Ckt 2
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.125 1.125 1.125 1.125 1.125 1.125
50
1.125 1.125 1.125 1.125 1.125 1.125
75
1.125 1.125 1.125 1.125 1.125 1.125
100
1.125 1.125 1.125 1.125 1.125 1.125
125
1.125 1.125 1.125 1.125 1.125 1.125
150
1.125 1.125 1.125 1.125 1.125 1.125
175
1.125 1.125 1.125 1.125 1.125 1.375
200
1.125 1.125 1.125 1.125 1.375 1.375
225
1.125 1.125 1.125 1.375 1.375 1.375
250
1.125 1.125 1.375 1.375 1.375 1.375
275
1.125 1.375 1.375 1.375 1.375 1.375
300
1.375 1.375 1.375 1.375 1.375 1.375
Table 42. Liquid line sizing RTUD 100 ton
Height (ft)
Ckt 1
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.125 1.125 1.125 1.125 1.125 1.125
50
1.125 1.125 1.125 1.125 1.125 1.125
75
1.125 1.125 1.125 1.125 1.125 1.125
100
1.125 1.125 1.125 1.125 1.125 1.125
125
1.125 1.125 1.125 1.125 1.125 1.125
150
1.125 1.125 1.125 1.125 1.125 1.125
175
1.125 1.125 1.125 1.125 1.125 1.125
200
1.125 1.125 1.125 1.125 1.125 1.125
225
1.125 1.125 1.125 1.125 1.125 1.375
250
1.125 1.125 1.125 1.125 1.375 1.375
275
1.125 1.125 1.125 1.375 1.375 1.375
300
1.125 1.125 1.375 1.375 1.375 1.375
Ckt 2
Line
< 0 3 6 9 12 15
Total
Equiv.
Length
(ft)
25
1.125 1.125 1.125 1.125 1.125 1.125
50
1.125 1.125 1.125 1.125 1.125 1.125
75
1.125 1.125 1.125 1.125 1.125 1.125
100
1.125 1.125 1.125 1.125 1.125 1.125
125
1.125 1.125 1.125 1.125 1.125 1.125
150
1.125 1.125 1.125 1.125 1.125 1.125
175
1.125 1.125 1.125 1.125 1.125 1.125
200
1.125 1.125 1.125 1.125 1.375 1.375
225
1.125 1.125 1.125 1.375 1.375 1.375
250
1.125 1.125 1.375 1.375 1.375 1.375
275
1.375 1.375 1.375 1.375 1.375 1.375
300
1.375 1.375 1.375 1.375 1.375 1.375
Table 41. Liquid line sizing RTUD 90 ton (continued)
Height (ft)