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 69
Table 59. Discharge (hot gas) line sizing RTUD 160 ton
Leaving Water
Temperature
Leaving Water
Temperature
Ckt 1
Line
38-65
°F
10-37
°F
Ckt 2
Line
38-65
°F
10-37
°F
Total
Equiv.
Length
(ft)
25
2.625 2.625
Total
Equiv.
Length
(ft)
25
2.625 2.625
50
2.625 2.625 50 2.625 2.625
75
2.625 2.625 75 2.625 2.625
100
2.625 2.625 100 2.625 2.625
125
2.625 2.625 125 2.625 2.625
150
2.625 2.625 150 2.625 2.625
175
2.625 2.625 175 2.625 2.625
200
2.625 2.625 200 2.625 2.625
225
2.625 2.625 225 2.625 2.625
250
3.125 2.625 250 3.125 2.625
275
3.125 2.625 275 3.125 2.625
300
3.125 2.625 300 3.125 2.625
Table 60. Discharge (hot gas) line sizing RTUD 180 ton
Leaving Water
Temperature
Leaving Water
Temperature
Ckt 1
Line
38-65
°F
10-37
°F
Ckt 2
Line
38-65
°F
10-37
°F
Total
Equiv.
Length
(ft)
25
2.625 2.625
Total
Equiv.
Length
(ft)
25
2.625 2.625
50
2.625 2.625 50 2.625 2.625
75
2.625 2.625 75 2.625 2.625
100
2.625 2.625 100 2.625 2.625
125
2.625 2.625 125 2.625 2.625
150
2.625 2.625 150 2.625 2.625
175
2.625 2.625 175 3.125 2.625
200
2.625 2.625 200 3.125 2.625
225
2.625 2.625 225 3.125 2.625
250
3.125 2.625 250 3.125 2.625
275
3.125 2.625 275 3.125 3.125
300
3.125 2.625 300 3.125 3.125
Table 61. Discharge (hot gas) line sizing RTUD 200 ton
Leaving Water
Temperature
Leaving Water
Temperature
Ckt 1
Line
38-65
°F
10-37
°F
Ckt 2
Line
38-65
°F
10-37
°F
Total
Equiv.
Length
(ft)
25
2.625 2.625
Total
Equiv.
Length
(ft)
25
2.625 2.625
50
2.625 2.625 50 2.625 2.625
75
2.625 2.625 75 2.625 2.625
100
2.625 2.625 100 2.625 2.625
125
2.625 2.625 125 2.625 2.625
150
2.625 2.625 150 2.625 2.625
175
3.125 2.625 175 3.125 2.625
200
3.125 2.625 200 3.125 2.625
225
3.125 2.625 225 3.125 2.625
250
3.125 3.125 250 3.125 2.625
275
3.125 3.125 275 3.125 3.125
300
3.125 3.125 300 3.125 3.125
Table 62. Discharge (hot gas) line sizing RTUD 220 ton
Leaving Water
Temperature
Leaving Water
Temperature
Ckt 1
Line
38-65
°F
10-37
°F
Ckt 2
Line
38-65
°F
10-37
°F
Total
Equiv.
Length
(ft)
25
2.625 2.625
Total
Equiv.
Length
(ft)
25
3.125 3.125
50
2.625 2.625 50 3.125 3.125
75
2.625 2.625 75 3.125 3.125
100
2.625 2.625 100 3.125 3.125
125
2.625 2.625 125 3.125 3.125
150
2.625 2.625 150 3.125 3.125
175
3.125 2.625 175 3.125 3.125
200
3.125 2.625 200 3.125 3.125
225
3.125 2.625 225 3.125 3.125
250
3.125 3.125 250 3.125 3.125
275
3.125 3.125 275 3.125 3.125
300
3.125 3.125 300 3.625 3.125