Table of Contents
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Remote Air Cooled Condensers
Models
"J" and Later Design Sequence
CAUC-C80
CAUC-D10
CAUC-D12
© 2008 Trane All rights reserved
http://www.trane.com
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Installation
Operation
Maintenance
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Since the manufacturer has a policy of continuous product
improvement, it reserves the right to change specifications and
design without notice.
CAUC-IOM-8
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SV-UN-S/S-CAUC-IOM-8 10/08
Note: The installation of this equipment must
comply with all National, State, and Local
Codes.
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Air Cooled Condenser
CAUC
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October 2008
December 2001
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Table of Contents
Related Manuals for Trane CAUC-C80
Summary of Contents for Trane CAUC-C80
- Page 1 "J" and Later Design Sequence comply with all National, State, and Local CAUC-C80 Codes. CAUC-D10 CAUC-D12 Since the manufacturer has a policy of continuous product © 2008 Trane All rights reserved improvement, it reserves the right to change specifications and design without notice. http://www.trane.com...
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Page 2: About The Manual
About The Manual Literature Change History Overview of Manual CAUC-IOM-8 (December 2001) Note: One copy of this document ships inside the First issue of manual; provides Installation, Operation, and control panel of each unit and is customer Maintenance instructions for “J” and later design sequence property. -
Page 3: Table Of Contents
Table of Contents Section One Discharge (Hot Gas) Lines ......... 15 Discharge Line Components ........16 About The Manual Making Refrigerant Connections ........16 Literature Change History ..........2 Brazing Procedures ............16 Overview of Manual ............2 Leak Testing Procedure ..........17 Field Installed Power Wiring .......... -
Page 4: General Information
General Information Model Number Description When ordering replacement parts or requesting service, be All Trane products are identified by a multiple-character sure to refer to the specific model number, serial number, model number that precisely identifies a particular type of and DL number (if applicable) stamped on the unit name- unit. -
Page 5: Unit Component Layout And "Shipwith" Locations
General Information (Continued) Unit Component "Layout" and "Shipwith" Locations (120 Ton Unit Illustrated) -
Page 6: Installation
Follow the instructions under “Unit Isolation” for proper iso- evidence that the damage did not occur after delivery. lator placement and installation. [ ] Notify the appropriate Trane office before installing or re- Check with a roofing contractor for proper waterproofing pairing a damaged unit. - Page 7 Installation (Continued) Figure 3-1 Typical Installation Clearances for Single, Multiple and Pit Applications...
- Page 8 Figure 3-2 CAUC-C80 Unit Dimensional Data & Recommended Clearances...
- Page 9 Figure 3-2 (Continued) CAUC-D10 Unit Dimensional Data & Recommended Clearances...
- Page 10 Figure 3-2 (Continued) CAUC-D12 Unit Dimensional Data & Recommended Clearances...
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Page 11: Rigging
Installation (Continued) Table 3-1 Typical Unit Weights & Point Loading Data Operating Unit Weight on Isolator @ Mounting Location Unit Weight Location 1 Size 4036 4637 514 586 478 549 522 597 485 560 524 600 487 562 532 611 494 572 4675 5472 603 698 571 666 600 700 569 668 600 700 569 668 597 702 566 670 4911 6109 631... -
Page 12: Unit Isolation
Installation (Continued) Rigging Spring Isolators Install the spring isolators at each unit mounting (load) point, using the following procedure: A Rigging illustration and Center-of-Gravity dimensional data table is shown in Figure 3-3. Refer to the typical unit 1. Elevate the unit (one side at a time) to allow access to operating weights table before proceeding. -
Page 13: Leveling The Unit
Installation (Continued) Leveling the Unit 6. Secure the isolator to the mounting surface using the base holes in the isolator. Before tightening the mounting bolts, level the unit carefully. 7. After the unit is level, tighten the isolator base mounting Use the unit base rail as a reference. -
Page 14: General Unit Requirements
[ ] Check the unit for shipping damage and material short- age; file a freight claim and notify Trane office. [ ] Install and connect properly sized power supply wiring, with over current protection, to the main power terminal [ ] Verify that the installation location of the unit will provide block (1TB1) in the unit control panel. -
Page 15: Refrigerant Piping
(if applicable) and the expansion valve. Trane recommends that the Refrigerant Line Sizing pro- gram in the "Trane C.D.S. Application Toolbox" be used to Liquid Line Solenoid Valves size the refrigerant lines. This program supersedes the line... -
Page 16: Discharge Line Components
Installation (Continued) A double riser system may be necessary to meet the dis- present, relieve the pressure before attempting to unsweat charge line velocity requirements. the “seal” caps. If refrigerant connections are not capped, but are “spun-end” tubes, use a tubing cutter to remove the When either a single or double discharge riser is used, the end from the pipe. -
Page 17: Leak Testing Procedure
State and Local codes. Trane condensing units are shipped with a Nitrogen hold- Verify that the power supply available is compatible with the ing charge. If there is no pressure, the unit must be leak unit’s nameplate ratings. - Page 18 Installation (Continued) Table 3-3 Customer Connection Wire Range Table 3-4 Unit Electrical Data Recommended Voltage Minimum Maximum Dual Condenser Fan Unit Rated Utility Circuit Fuse Element Size Voltage Range Ampacity Size Fuse Size Qty. (Each) (Each) (Each) (Each) 200/60/3 180-220 20.7 0.90 230/60/3 208-254...
- Page 19 Installation (Continued) Figure 3-5 Typical CAUC C80 through D12 Field Wiring Diagram...
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Page 20: Field Installed Control Wiring
Installation (Continued) Power Wire Sizing and Protection Device Equations To correctly size the main power wiring for the unit, use the appropriate calculation(s) listed below. Read the load definitions that follow and use Calculation #1 for determining the MCA (Minimum Circuit Ampacity), MOP (Maximum Over current Pro- tection), and RDE (Recommended Dual Element fuse size) for each unit. -
Page 21: System Pre-Start Procedures
System Pre-Start Procedures Use the checklist provided below in conjunction with the and suction line access valve). Follow the pump “General Unit Requirement” checklist” to ensure that the manufacturer’s directions for the proper methods of using unit is properly installed and ready for operation. Be sure to the vacuum pump. - Page 22 System Pre-Start Procedures (Continued) If a leak is encounter, repair the system and repeat the Figure 4-1 evacuation process until the recommended vacuum is ob- Typical Vacuum Pump Hookup tained. Once the system has been evacuated, break the vacuum with refrigerant, and complete the remaining “Pre-Start Pro- cedures"...
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Page 23: Voltage Imbalance
System Pre-Start Procedures (Continued) Voltage Imbalance Electrical Phasing Excessive three phase voltage imbalance between phases Proper electrical phasing can be quickly determined and will cause motors to overheat and eventually fail. The maxi- corrected before starting the unit by using an instrument mum allowable voltage imbalance is 2%. -
Page 24: System Start-Up
System Start-Up Sequence of Operation Low Ambient Damper Operation Low Ambient Dampers are available as a factory installed Standard air cooled condensers function as the outdoor option or can be field-installed. Dampers are used to extend condensing units for appropriately sized split refrigeration the operation of these units from the standard operational systems. -
Page 25: Verifying Proper Fan Rotation
System Start-Up (Continued) Figure 5-1 Condenser Fan Locations Verifying Proper Condenser Fan Rotation All Fans are Rotating Backwards; 1. “Open” the field supplied disconnect switch or circuit pro- 1. Turn the field supplied disconnect switch or circuit protec- tector switch that provides power to the compressor unit tor switch that provides power to the condensing unit to and lock it in the “Off”... -
Page 26: Low Ambient Damper Adjustment
System Start-Up (Continued) Low Ambient Damper Adjustment Table 5-2 gives the minimum starting temperatures for both “Standard” & “Low” Ambient units. (Factory or Field Installed) Do not attempt to charge the system with the low ambi- When a unit is ordered with the low ambient option (i.e., ent dampers and/or hot gas bypass operating (if appli- Digit 11 is a “1”... - Page 27 System Start-Up (Continued) Table 5-4 Liquid Line & Drier Refrigerant Requirements Liquid Liquid Sporlan Drier Line Line Part Refrigerant O.D. Charge Charge 5/8" 1.827 C-305-S 1 lb. - 1 oz. 3/4" 2.728 C-307-S 1 lb. - 1 oz. C-417-S 1 lb. - 8 oz. 7/8"...
- Page 30 Figure 5-3 Typical Control Panel Connections Diagram for 80 through 120 Ton Units...
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Page 32: Service And Maintenance
Service and Maintenance Fuse Replacement Data Table 6-1 lists the replacement fuses for the control circuit and Transformers. Table 6-1 Fuse Replacement Data Monthly Maintenance Before completing the following checks, turn all system con- After greasing the bearings, check the setscrews to en- trol circuit switches to the “Off”... -
Page 33: Coil Cleaning
Service and Maintenance (Continued) [ ] With the unit running, check and record the: 3. Straighten any bent coil fins with a fin comb. ambient temperature; 4. Mix the detergent with water according to the compressor oil level (each circuit); manufacturer’s instructions. -
Page 34: Index
Align the mounting holes ........... 12 halogen leak detector ............17 Horizontal Lines ..............16 hot gas mufflers ..............16 CAUC-C80 Unit Dimensional ..........8 See Figure 3-2 CAUC-D10 Unit Dimensional Data ........9 interlock contacts 6K1 ............20 See Figure 3-2 interlock contacts 6K2 ............ - Page 35 Recommended Dual Element (RDE) ........ 20 Type "L" refrigerant tubing ..........15 See Calculation #1 Typical Clearances .............. 7 Refrigerant Capacities ............26 See Figure 3-1 See Table 5-2 Typical Unit Weights & Point Loading Data ...... 11 Rigging and Center-of-Gravity .......... 11 See Table 3-1 See Figure 3-3 Typical Wiring Schematic ..........
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